./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|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9253 attached [pid 9253] set_robust_list(0x555556b565e0, 24) = 0 [pid 9253] chdir("./241") = 0 [pid 9253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9253] setpgid(0, 0) = 0 [pid 9253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9253] write(3, "1000", 4) = 4 [pid 9253] close(3) = 0 [pid 9253] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9253] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9253] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9253] 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=[9254], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9254 [pid 9253] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9253] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9254 attached [pid 9254] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9254] memfd_create("syzkaller", 0) = 3 [pid 9254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./240/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./240/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>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./240/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] close(4) = 0 [pid 4998] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] rmdir("./240/file0" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./240/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] <... rmdir resumed>) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 5003] getdents64(3, [pid 4998] rmdir("./240/file0" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./240" [pid 5003] close(3 [pid 4998] <... rmdir resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 4998] mkdir("./241", 0777 [pid 5003] rmdir("./240" [pid 4998] <... mkdir resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./241", 0777 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5003] <... mkdir resumed>) = 0 [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) = 9255 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 5000] <... umount2 resumed>) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... close resumed>) = 0 ./strace-static-x86_64: Process 9255 attached [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] lstat("./241/file0", [pid 9254] 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] <... clone resumed>, child_tidptr=0x555556b565d0) = 9256 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./241/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9255] set_robust_list(0x555556b565e0, 24 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9255] <... set_robust_list resumed>) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 9255] chdir("./241" [pid 5000] rmdir("./241/file0" [pid 9255] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 9256 attached [pid 9256] set_robust_list(0x555556b565e0, 24 [pid 5000] <... rmdir resumed>) = 0 [pid 9256] <... set_robust_list resumed>) = 0 [pid 5000] getdents64(3, [pid 9255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9256] chdir("./241") = 0 [pid 9256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] close(3) = 0 [pid 5000] rmdir("./241" [pid 9256] <... prctl resumed>) = 0 [pid 9256] setpgid(0, 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9256] <... setpgid resumed>) = 0 [pid 9256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] mkdir("./242", 0777 [pid 9256] <... openat resumed>) = 3 [pid 5000] <... mkdir resumed>) = 0 [pid 9255] <... prctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 9256] write(3, "1000", 4 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9256] <... write resumed>) = 4 [pid 9256] close(3) = 0 [pid 9256] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9255] setpgid(0, 0) = 0 [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9256] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9255] <... openat resumed>) = 3 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9257 [pid 9255] write(3, "1000", 4) = 4 [pid 9255] close(3 [pid 9256] <... mmap resumed>) = 0x7f38e1b78000 [pid 9255] <... close resumed>) = 0 [pid 9256] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9255] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9256] 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=[9258], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9258 [pid 9256] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9256] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9255] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9257 attached [pid 9257] set_robust_list(0x555556b565e0, 24 [pid 9255] <... mmap resumed>) = 0x7f38e1b78000 [pid 9257] <... set_robust_list resumed>) = 0 [pid 9257] chdir("./242") = 0 [pid 9255] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9255] <... mprotect resumed>) = 0 [pid 9255] 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 9257] <... prctl resumed>) = 0 [pid 9257] setpgid(0, 0) = 0 [pid 9257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9255] <... clone resumed>, parent_tid=[9259], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9259 [pid 9257] <... openat resumed>) = 3 [pid 9255] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 9259 attached [pid 9257] write(3, "1000", 4) = 4 [pid 9257] close(3) = 0 ./strace-static-x86_64: Process 9258 attached [pid 9257] symlink("/dev/binderfs", "./binderfs" [pid 9258] set_robust_list(0x7f38e1b989e0, 24 [pid 9257] <... symlink resumed>) = 0 [pid 9258] <... set_robust_list resumed>) = 0 [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9259] set_robust_list(0x7f38e1b989e0, 24 [pid 9258] memfd_create("syzkaller", 0 [pid 9255] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9258] <... memfd_create resumed>) = 3 [pid 9257] <... futex resumed>) = 0 [pid 9258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9259] <... set_robust_list resumed>) = 0 [pid 9258] <... mmap resumed>) = 0x7f38d9778000 [pid 9257] <... mmap resumed>) = 0x7f38e1b78000 [pid 9259] memfd_create("syzkaller", 0 [pid 9257] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9259] <... memfd_create resumed>) = 3 [pid 9257] <... mprotect resumed>) = 0 [pid 9257] 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 9260 attached [pid 9259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9254] <... write resumed>) = 4194304 [pid 9260] set_robust_list(0x7f38e1b989e0, 24 [pid 9259] <... mmap resumed>) = 0x7f38d9778000 [pid 9257] <... clone resumed>, parent_tid=[9260], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9260 [pid 9260] <... set_robust_list resumed>) = 0 [pid 9257] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9260] memfd_create("syzkaller", 0 [pid 9258] 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 9257] <... futex resumed>) = 0 [pid 9254] munmap(0x7f38d9778000, 4194304 [pid 9260] <... memfd_create resumed>) = 3 [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9254] <... munmap resumed>) = 0 [pid 9254] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9254] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9254] close(3) = 0 [pid 9254] mkdir("./file0", 0777) = 0 [pid 9254] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9259] 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 9260] 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 9258] <... write resumed>) = 4194304 [pid 9258] munmap(0x7f38d9778000, 4194304) = 0 [ 248.308103][ T9254] loop1: detected capacity change from 0 to 8192 [ 248.335139][ T9254] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9260] <... write resumed>) = 4194304 [pid 9260] munmap(0x7f38d9778000, 4194304) = 0 [pid 9260] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9260] ioctl(4, LOOP_SET_FD, 3 [pid 9258] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9258] ioctl(4, LOOP_SET_FD, 3 [pid 9260] <... ioctl resumed>) = 0 [pid 9260] close(3) = 0 [pid 9260] mkdir("./file0", 0777) = 0 [pid 9260] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9259] <... write resumed>) = 4194304 [pid 9258] <... ioctl resumed>) = 0 [pid 9258] close(3) = 0 [pid 9258] mkdir("./file0", 0777) = 0 [pid 9258] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9259] munmap(0x7f38d9778000, 4194304) = 0 [pid 9259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 248.372305][ T9254] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 248.379228][ T9260] loop2: detected capacity change from 0 to 8192 [ 248.389237][ T9258] loop5: detected capacity change from 0 to 8192 [ 248.394296][ T9254] REISERFS (device loop1): using ordered data mode [ 248.403648][ T9254] reiserfs: using flush barriers [ 248.403782][ T9259] loop0: detected capacity change from 0 to 8192 [pid 9259] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9259] close(3) = 0 [pid 9259] mkdir("./file0", 0777) = 0 [ 248.409879][ T9260] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 248.415330][ T9258] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 248.428087][ T9254] 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 [ 248.442624][ T9260] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 248.458581][ T9254] REISERFS (device loop1): checking transaction log (loop1) [ 248.466893][ T9258] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 248.474849][ T9254] REISERFS (device loop1): Using r5 hash to sort names [ 248.483157][ T9260] REISERFS (device loop2): using ordered data mode [ 248.496367][ T9259] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 248.510195][ T9258] REISERFS (device loop5): using ordered data mode [ 248.510383][ T9254] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 248.516734][ T9258] reiserfs: using flush barriers [ 248.517539][ T9259] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 248.529470][ T9260] reiserfs: using flush barriers [ 248.535024][ T9258] 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 [ 248.544426][ T9259] REISERFS (device loop0): using ordered data mode [pid 9259] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9254] <... mount resumed>) = 0 [pid 9254] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9254] chdir("./file0") = 0 [pid 9254] ioctl(4, LOOP_CLR_FD) = 0 [pid 9254] close(4) = 0 [pid 9254] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9254] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9253] <... futex resumed>) = 0 [ 248.549679][ T9258] REISERFS (device loop5): checking transaction log (loop5) [ 248.564943][ T9260] 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 [ 248.572366][ T9259] reiserfs: using flush barriers [ 248.579063][ T9254] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 248.596613][ T9260] REISERFS (device loop2): checking transaction log (loop2) [pid 9253] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9254] <... futex resumed>) = 0 [pid 9253] <... futex resumed>) = 1 [pid 9254] mkdir("./file1", 000 [pid 9253] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9254] <... mkdir resumed>) = 0 [pid 9254] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9253] <... futex resumed>) = 0 [pid 9254] mkdir("./bus", 000 [pid 9253] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9254] <... mkdir resumed>) = 0 [pid 9253] <... futex resumed>) = 0 [pid 9254] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9253] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9254] <... futex resumed>) = 0 [pid 9253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9254] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9253] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 248.616989][ T9259] 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 [ 248.618455][ T9258] REISERFS (device loop5): Using r5 hash to sort names [ 248.633523][ T9259] REISERFS (device loop0): checking transaction log (loop0) [ 248.641776][ T9258] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 248.653057][ T9260] REISERFS (device loop2): Using r5 hash to sort names [pid 9253] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9258] <... mount resumed>) = 0 [ 248.660382][ T9258] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 248.667594][ T9254] overlayfs: upper fs needs to support d_type. [ 248.677416][ T9259] REISERFS (device loop0): Using r5 hash to sort names [ 248.683614][ T9254] overlayfs: upper fs does not support tmpfile. [ 248.690243][ T9259] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 248.697852][ T9260] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9258] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9253] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9253] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9253] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9253] 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=[9265], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9265 [pid 9253] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9253] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9265 attached [pid 9258] chdir("./file0" [pid 9265] set_robust_list(0x7f38d9b779e0, 24 [pid 9258] <... chdir resumed>) = 0 [pid 9265] <... set_robust_list resumed>) = 0 [pid 9258] ioctl(4, LOOP_CLR_FD [pid 9259] <... mount resumed>) = 0 [pid 9265] mkdir(".", 0777 [pid 9259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9258] <... ioctl resumed>) = 0 [pid 9265] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9258] close(4 [pid 9265] 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 9258] <... close resumed>) = 0 [pid 9258] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9256] <... futex resumed>) = 0 [pid 9258] <... futex resumed>) = 1 [pid 9256] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9256] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9258] mkdir("./file1", 000) = 0 [pid 9258] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9256] <... futex resumed>) = 0 [pid 9258] mkdir("./bus", 000 [pid 9256] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9256] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9258] <... mkdir resumed>) = 0 [pid 9258] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9265] <... mount resumed>) = 0 [pid 9258] <... futex resumed>) = 1 [pid 9256] <... futex resumed>) = 0 [pid 9256] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9265] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9258] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9256] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9265] <... openat resumed>) = 4 [pid 9259] <... openat resumed>) = 3 [ 248.709152][ T9259] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 248.726183][ T9254] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 248.753428][ T9258] overlayfs: upper fs needs to support d_type. [ 248.758605][ T9254] overlayfs: failed to resolve './file0': -2 [ 248.762963][ T9258] overlayfs: upper fs does not support tmpfile. [pid 9265] chdir("." [pid 9259] chdir("./file0" [pid 9254] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9254] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9254] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9265] <... chdir resumed>) = 0 [pid 9259] <... chdir resumed>) = 0 [pid 9265] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9259] ioctl(4, LOOP_CLR_FD) = 0 [pid 9265] <... futex resumed>) = 1 [pid 9253] <... futex resumed>) = 0 [pid 9259] close(4 [pid 9265] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9253] exit_group(0 [pid 9259] <... close resumed>) = 0 [pid 9254] <... futex resumed>) = ? [pid 9253] <... exit_group resumed>) = ? [pid 9254] +++ exited with 0 +++ [pid 9265] <... futex resumed>) = ? [pid 9259] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9265] +++ exited with 0 +++ [pid 9253] +++ exited with 0 +++ [pid 9259] <... futex resumed>) = 1 [pid 9255] <... futex resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9253, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 9255] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9259] mkdir("./file1", 000 [pid 9255] <... futex resumed>) = 0 [pid 9255] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9259] <... mkdir resumed>) = 0 [pid 4999] umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9259] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9255] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9259] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9255] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9259] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9255] <... futex resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9259] mkdir("./bus", 000 [pid 9255] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... openat resumed>) = 3 [pid 9259] <... mkdir resumed>) = 0 [pid 4999] fstat(3, [pid 9259] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9256] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9259] <... futex resumed>) = 1 [pid 9256] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 4999] getdents64(3, [pid 9259] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9256] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9255] <... futex resumed>) = 0 [pid 9256] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9255] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9259] <... futex resumed>) = 0 [pid 9256] <... futex resumed>) = 0 [pid 9255] <... futex resumed>) = 1 [pid 4999] umount2("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9259] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9255] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9256] <... mmap resumed>) = 0x7f38d9b57000 [pid 9256] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] lstat("./241/binderfs", [pid 9256] <... mprotect resumed>) = 0 [pid 9256] 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=[9266], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9266 [pid 9256] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9256] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9266 attached [pid 9266] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9266] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9266] 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 9260] <... mount resumed>) = 0 [pid 9260] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9260] chdir("./file0") = 0 [pid 9260] ioctl(4, LOOP_CLR_FD) = 0 [pid 9260] close(4) = 0 [pid 9260] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9257] <... futex resumed>) = 0 [pid 9257] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9260] <... futex resumed>) = 1 [pid 9260] mkdir("./file1", 000) = 0 [pid 9260] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9257] <... futex resumed>) = 0 [pid 9257] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9260] <... futex resumed>) = 1 [pid 9260] mkdir("./bus", 000 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./241/binderfs" [pid 9260] <... mkdir resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 9260] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9257] <... futex resumed>) = 0 [pid 9257] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9260] <... futex resumed>) = 1 [ 248.769597][ T9260] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 248.773296][ T9258] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 248.804908][ T9259] overlayfs: upper fs needs to support d_type. [ 248.814659][ T9260] overlayfs: upper fs needs to support d_type. [pid 9260] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9266] <... mount resumed>) = 0 [pid 9266] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9266] chdir(".") = 0 [pid 9266] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9256] <... futex resumed>) = 0 [pid 9266] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9255] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9255] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9255] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9255] 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=[9267], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9267 [pid 9255] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9255] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9257] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9257] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9257] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9257] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9257] 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=[9268], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9268 [pid 9257] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9257] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9267 attached [pid 9267] set_robust_list(0x7f38d9b779e0, 24 [pid 9258] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9267] <... set_robust_list resumed>) = 0 [pid 9258] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9256] exit_group(0 [pid 9267] mkdir(".", 0777 [pid 9266] <... futex resumed>) = ? [pid 9258] <... futex resumed>) = ? [pid 9256] <... exit_group resumed>) = ? [pid 9266] +++ exited with 0 +++ [pid 9267] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9258] +++ exited with 0 +++ [pid 9256] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9256, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 9267] 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] umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./241", 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("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 248.821645][ T9260] overlayfs: upper fs does not support tmpfile. [ 248.822647][ T9258] overlayfs: failed to resolve './file0': -2 [ 248.829375][ T9260] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 248.850567][ T9259] overlayfs: upper fs does not support tmpfile. [ 248.865897][ T9259] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5003] lstat("./241/binderfs", ./strace-static-x86_64: Process 9268 attached [pid 9267] <... mount resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 5003] unlink("./241/binderfs") = 0 [pid 5003] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9268] set_robust_list(0x7f38d9b779e0, 24 [pid 9267] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9268] <... set_robust_list resumed>) = 0 [pid 9267] <... openat resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9268] mkdir(".", 0777 [pid 9267] chdir("." [pid 9259] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] lstat("./241/file0", [pid 9268] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9267] <... chdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9267] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9268] 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 9259] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9267] <... futex resumed>) = 1 [pid 9255] <... futex resumed>) = 0 [pid 4999] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9255] exit_group(0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9267] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9259] <... futex resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./241/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, [pid 9267] <... futex resumed>) = ? [pid 9255] <... exit_group resumed>) = ? [pid 4999] <... fstat resumed>{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 9267] +++ exited with 0 +++ [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./241/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./241" [pid 9259] +++ exited with 0 +++ [pid 9255] +++ exited with 0 +++ [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./242", 0777) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9255, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 4999] <... openat resumed>) = 3 [pid 4998] <... restart_syscall resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 4998] umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] openat(AT_FDCWD, "./241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9269 [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("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./241/binderfs") = 0 [pid 4998] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9268] <... mount resumed>) = 0 [pid 9260] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9268] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9260] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 9269 attached [pid 9268] <... openat resumed>) = 4 [pid 9260] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9268] chdir(".") = 0 [pid 9269] set_robust_list(0x555556b565e0, 24 [ 248.896206][ T9260] overlayfs: failed to resolve './file0': -2 [ 248.900441][ T9259] overlayfs: failed to resolve './file0': -2 [pid 9268] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9257] <... futex resumed>) = 0 [pid 9268] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9257] exit_group(0) = ? [pid 9269] <... set_robust_list resumed>) = 0 [pid 9268] <... futex resumed>) = ? [pid 9260] <... futex resumed>) = ? [pid 9268] +++ exited with 0 +++ [pid 9260] +++ exited with 0 +++ [pid 9269] chdir("./242" [pid 9257] +++ exited with 0 +++ [pid 9269] <... chdir resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9257, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5000] umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9269] <... prctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9269] setpgid(0, 0 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9269] <... setpgid resumed>) = 0 [pid 5000] getdents64(3, [pid 9269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9269] <... openat resumed>) = 3 [pid 5000] umount2("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9269] write(3, "1000", 4 [pid 5000] lstat("./242/binderfs", [pid 9269] <... write resumed>) = 4 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9269] close(3 [pid 5000] unlink("./242/binderfs") = 0 [pid 9269] <... close resumed>) = 0 [pid 5000] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9269] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9269] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9269] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9269] 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=[9270], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9270 [pid 9269] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9269] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9270 attached [pid 9270] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9270] memfd_create("syzkaller", 0) = 3 [pid 9270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./241/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./241/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("./241/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./241" [pid 4998] <... umount2 resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./242", 0777) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... openat resumed>) = 3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./241/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4998] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./241/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... openat resumed>) = 4 [pid 5003] close(3 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = 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("./241/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./241") = 0 [pid 4998] mkdir("./242", 0777 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9271 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./242/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... mkdir resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./242/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [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] <... openat resumed>) = 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, [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4./strace-static-x86_64: Process 9272 attached ./strace-static-x86_64: Process 9271 attached ) = 0 [pid 5000] rmdir("./242/file0" [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9272 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9272] set_robust_list(0x555556b565e0, 24 [pid 9271] set_robust_list(0x555556b565e0, 24 [pid 5000] close(3 [pid 9272] <... set_robust_list resumed>) = 0 [pid 9271] <... set_robust_list resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./242" [pid 9272] chdir("./242" [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./243", 0777 [pid 9272] <... chdir resumed>) = 0 [pid 9272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9271] chdir("./242" [pid 5000] <... mkdir resumed>) = 0 [pid 9272] <... prctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 9272] setpgid(0, 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9272] <... setpgid resumed>) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] close(3) = 0 [pid 9272] <... openat resumed>) = 3 [pid 9271] <... chdir resumed>) = 0 [pid 9272] write(3, "1000", 4 [pid 9271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9270] 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] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9272] <... write resumed>) = 4 [pid 9271] <... prctl resumed>) = 0 [pid 9272] close(3 [pid 9271] setpgid(0, 0 [pid 9272] <... close resumed>) = 0 [pid 9271] <... setpgid resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9273 [pid 9272] symlink("/dev/binderfs", "./binderfs" [pid 9271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9272] <... symlink resumed>) = 0 [pid 9271] <... openat resumed>) = 3 [pid 9272] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9271] write(3, "1000", 4 [pid 9272] <... futex resumed>) = 0 [pid 9271] <... write resumed>) = 4 [pid 9272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9273 attached [pid 9273] set_robust_list(0x555556b565e0, 24) = 0 [pid 9273] chdir("./243" [pid 9272] <... mmap resumed>) = 0x7f38e1b78000 [pid 9271] close(3 [pid 9272] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9271] <... close resumed>) = 0 [pid 9273] <... chdir resumed>) = 0 [pid 9273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9273] setpgid(0, 0) = 0 [pid 9272] <... mprotect resumed>) = 0 [pid 9271] symlink("/dev/binderfs", "./binderfs" [pid 9273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9273] write(3, "1000", 4 [pid 9271] <... symlink resumed>) = 0 [pid 9273] <... write resumed>) = 4 [pid 9273] close(3 [pid 9272] 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 9271] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9273] <... close resumed>) = 0 [pid 9273] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9271] <... futex resumed>) = 0 [pid 9271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9273] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9272] <... clone resumed>, parent_tid=[9274], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9274 [pid 9273] <... futex resumed>) = 0 [pid 9273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9273] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9273] 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 9272] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9271] <... mmap resumed>) = 0x7f38e1b78000 ./strace-static-x86_64: Process 9275 attached ./strace-static-x86_64: Process 9274 attached [pid 9273] <... clone resumed>, parent_tid=[9275], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9275 [pid 9272] <... futex resumed>) = 0 [pid 9271] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9275] set_robust_list(0x7f38e1b989e0, 24 [pid 9274] set_robust_list(0x7f38e1b989e0, 24 [pid 9272] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9271] <... mprotect resumed>) = 0 [pid 9275] <... set_robust_list resumed>) = 0 [pid 9274] <... set_robust_list resumed>) = 0 [pid 9271] 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 9275] memfd_create("syzkaller", 0 [pid 9274] memfd_create("syzkaller", 0 [pid 9273] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9275] <... memfd_create resumed>) = 3 [pid 9274] <... memfd_create resumed>) = 3 [pid 9273] <... futex resumed>) = 0 [pid 9271] <... clone resumed>, parent_tid=[9276], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9276 [pid 9275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9273] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9271] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9276 attached [pid 9275] <... mmap resumed>) = 0x7f38d9778000 [pid 9274] <... mmap resumed>) = 0x7f38d9778000 [pid 9271] <... futex resumed>) = 0 [pid 9276] set_robust_list(0x7f38e1b989e0, 24 [pid 9271] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9270] <... write resumed>) = 4194304 [pid 9276] <... set_robust_list resumed>) = 0 [pid 9276] memfd_create("syzkaller", 0 [pid 9270] munmap(0x7f38d9778000, 4194304 [pid 9276] <... memfd_create resumed>) = 3 [pid 9270] <... munmap resumed>) = 0 [pid 9276] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9270] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9270] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9270] close(3) = 0 [pid 9270] mkdir("./file0", 0777) = 0 [pid 9274] 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 9270] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9275] 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 [ 249.127345][ T9270] loop1: detected capacity change from 0 to 8192 [ 249.162051][ T9270] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9276] 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 9275] <... write resumed>) = 4194304 [pid 9274] <... write resumed>) = 4194304 [pid 9275] munmap(0x7f38d9778000, 4194304 [pid 9274] munmap(0x7f38d9778000, 4194304 [pid 9275] <... munmap resumed>) = 0 [pid 9274] <... munmap resumed>) = 0 [pid 9274] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9275] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9274] <... openat resumed>) = 4 [pid 9275] ioctl(4, LOOP_SET_FD, 3 [ 249.192237][ T9270] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 249.202989][ T9270] REISERFS (device loop1): using ordered data mode [ 249.210627][ T9270] reiserfs: using flush barriers [ 249.216458][ T9274] loop0: detected capacity change from 0 to 8192 [ 249.217245][ T9270] 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 9274] ioctl(4, LOOP_SET_FD, 3 [pid 9276] <... write resumed>) = 4194304 [pid 9275] <... ioctl resumed>) = 0 [pid 9274] <... ioctl resumed>) = 0 [pid 9276] munmap(0x7f38d9778000, 4194304 [pid 9274] close(3 [pid 9276] <... munmap resumed>) = 0 [pid 9274] <... close resumed>) = 0 [pid 9274] mkdir("./file0", 0777) = 0 [pid 9274] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9276] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9276] ioctl(4, LOOP_SET_FD, 3 [pid 9275] close(3) = 0 [pid 9275] mkdir("./file0", 0777) = 0 [pid 9275] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9276] <... ioctl resumed>) = 0 [pid 9276] close(3) = 0 [pid 9276] mkdir("./file0", 0777) = 0 [ 249.223086][ T9275] loop2: detected capacity change from 0 to 8192 [ 249.240727][ T9270] REISERFS (device loop1): checking transaction log (loop1) [ 249.254412][ T9270] REISERFS (device loop1): Using r5 hash to sort names [ 249.256837][ T9276] loop5: detected capacity change from 0 to 8192 [ 249.267080][ T9270] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 249.275728][ T9274] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 249.281862][ T9270] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 249.294053][ T9274] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 249.303569][ T9275] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 249.312276][ T9274] REISERFS (device loop0): using ordered data mode [ 249.332141][ T9274] reiserfs: using flush barriers [pid 9276] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9270] <... mount resumed>) = 0 [pid 9270] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9270] chdir("./file0") = 0 [pid 9270] ioctl(4, LOOP_CLR_FD) = 0 [pid 9270] close(4) = 0 [pid 9270] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9269] <... futex resumed>) = 0 [pid 9269] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9269] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9270] <... futex resumed>) = 1 [pid 9270] mkdir("./file1", 000) = 0 [pid 9270] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9269] <... futex resumed>) = 0 [pid 9269] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9269] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9270] <... futex resumed>) = 1 [pid 9270] mkdir("./bus", 000) = 0 [pid 9270] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9269] <... futex resumed>) = 0 [pid 9269] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9269] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9270] <... futex resumed>) = 1 [ 249.332360][ T9276] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 249.350267][ T9274] 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 [ 249.359691][ T9276] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 249.375821][ T9276] REISERFS (device loop5): using ordered data mode [ 249.382716][ T9276] reiserfs: using flush barriers [ 249.383555][ T9274] REISERFS (device loop0): checking transaction log (loop0) [ 249.388708][ T9276] 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 [ 249.396668][ T9275] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 249.412877][ T9270] overlayfs: upper fs needs to support d_type. [ 249.420888][ T9275] REISERFS (device loop2): using ordered data mode [ 249.428708][ T9274] REISERFS (device loop0): Using r5 hash to sort names [pid 9270] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9269] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9269] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 249.433640][ T9275] reiserfs: using flush barriers [ 249.441497][ T9274] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 249.446840][ T9276] REISERFS (device loop5): checking transaction log (loop5) [ 249.459485][ T9270] overlayfs: upper fs does not support tmpfile. [ 249.465802][ T9275] 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 9269] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [ 249.473247][ T9270] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 249.488583][ T9275] REISERFS (device loop2): checking transaction log (loop2) [ 249.503540][ T9274] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 249.505072][ T9270] overlayfs: failed to resolve './file0': -2 [ 249.518665][ T9276] REISERFS (device loop5): Using r5 hash to sort names [pid 9269] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9269] 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 9274] <... mount resumed>) = 0 [pid 9274] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9274] chdir("./file0") = 0 [pid 9274] ioctl(4, LOOP_CLR_FD) = 0 [pid 9274] close(4) = 0 [pid 9274] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9274] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9272] <... futex resumed>) = 0 [pid 9269] <... clone resumed>, parent_tid=[9281], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9281 [pid 9270] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9270] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9270] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9276] <... mount resumed>) = 0 [pid 9276] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9276] chdir("./file0") = 0 [pid 9276] ioctl(4, LOOP_CLR_FD) = 0 [pid 9276] close(4) = 0 [pid 9276] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9276] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9281 attached [pid 9281] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9281] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9272] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] <... futex resumed>) = 0 [pid 9272] <... futex resumed>) = 1 [pid 9274] mkdir("./file1", 000 [pid 9272] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9274] <... mkdir resumed>) = 0 [pid 9274] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9272] <... futex resumed>) = 0 [pid 9274] mkdir("./bus", 000 [pid 9272] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] <... mkdir resumed>) = 0 [pid 9272] <... futex resumed>) = 0 [pid 9274] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9272] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9274] <... futex resumed>) = 0 [pid 9272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9274] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9272] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9271] <... futex resumed>) = 0 [pid 9269] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9271] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9269] <... futex resumed>) = 1 [pid 9271] <... futex resumed>) = 1 [pid 9269] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9271] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9276] <... futex resumed>) = 0 [pid 9272] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9276] mkdir("./file1", 000 [pid 9281] <... futex resumed>) = 0 [pid 9276] <... mkdir resumed>) = 0 [pid 9281] mkdir(".", 0777 [pid 9276] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9281] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9276] <... futex resumed>) = 1 [pid 9271] <... futex resumed>) = 0 [pid 9271] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 249.525677][ T9276] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 249.549501][ T9275] REISERFS (device loop2): Using r5 hash to sort names [ 249.554619][ T9276] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 249.565262][ T9275] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 249.575551][ T9274] overlayfs: upper fs needs to support d_type. [ 249.584662][ T9274] overlayfs: upper fs does not support tmpfile. [pid 9271] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9281] 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 9276] mkdir("./bus", 000) = 0 [pid 9276] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9271] <... futex resumed>) = 0 [pid 9271] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9271] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9276] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9281] <... mount resumed>) = 0 [pid 9281] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9281] chdir(".") = 0 [pid 9281] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9281] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9269] <... futex resumed>) = 0 [pid 9269] exit_group(0 [pid 9281] <... futex resumed>) = ? [pid 9270] <... futex resumed>) = ? [pid 9269] <... exit_group resumed>) = ? [pid 9281] +++ exited with 0 +++ [pid 9270] +++ exited with 0 +++ [pid 9269] +++ exited with 0 +++ [pid 9275] <... mount resumed>) = 0 [pid 9275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 249.592168][ T9274] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 249.603539][ T9276] overlayfs: upper fs needs to support d_type. [ 249.608890][ T9275] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 249.611998][ T9274] overlayfs: failed to resolve './file0': -2 [ 249.625061][ T9276] overlayfs: upper fs does not support tmpfile. [pid 9275] chdir("./file0") = 0 [pid 9275] ioctl(4, LOOP_CLR_FD) = 0 [pid 9275] close(4 [pid 9274] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9272] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9271] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9269, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9271] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9271] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9271] 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 9274] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9272] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9274] <... futex resumed>) = 0 [pid 9272] <... futex resumed>) = 0 [pid 9271] <... clone resumed>, parent_tid=[9282], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9282 [pid 9271] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9271] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9274] mkdir(".", 0777 [pid 9272] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9274] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4999] openat(AT_FDCWD, "./242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 9282 attached [pid 9275] <... close resumed>) = 0 [pid 9274] 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 9275] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [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("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9274] <... mount resumed>) = 0 [pid 4999] lstat("./242/binderfs", [pid 9274] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9275] <... futex resumed>) = 1 [pid 9274] <... openat resumed>) = 4 [pid 9273] <... futex resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9274] chdir("." [pid 9273] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] <... chdir resumed>) = 0 [pid 4999] unlink("./242/binderfs" [pid 9273] <... futex resumed>) = 0 [pid 9275] mkdir("./file1", 000 [pid 9274] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9282] set_robust_list(0x7f38d9b779e0, 24 [pid 9275] <... mkdir resumed>) = 0 [pid 9274] <... futex resumed>) = 1 [pid 9273] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9272] <... futex resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 9275] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9274] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9272] exit_group(0 [pid 4999] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9275] <... futex resumed>) = 1 [pid 9274] <... futex resumed>) = ? [pid 9273] <... futex resumed>) = 0 [pid 9272] <... exit_group resumed>) = ? [pid 9282] <... set_robust_list resumed>) = 0 [pid 9275] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9274] +++ exited with 0 +++ [pid 9273] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9273] <... futex resumed>) = 0 [pid 9275] mkdir("./bus", 000 [pid 9273] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9272] +++ exited with 0 +++ [pid 9282] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9272, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9282] 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 4998] restart_syscall(<... resuming interrupted clone ...> [pid 9275] <... mkdir resumed>) = 0 [pid 4998] <... restart_syscall resumed>) = 0 [pid 9275] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9282] <... mount resumed>) = 0 [pid 9275] <... futex resumed>) = 1 [pid 9273] <... futex resumed>) = 0 [pid 9282] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9275] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9273] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9282] <... openat resumed>) = 4 [pid 9275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9273] <... futex resumed>) = 0 [ 249.640291][ T9276] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 249.648328][ T9276] overlayfs: failed to resolve './file0': -2 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9282] chdir("." [pid 9276] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9275] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9273] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9282] <... chdir resumed>) = 0 [pid 9276] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "./242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9282] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9276] <... futex resumed>) = 0 [pid 9271] <... futex resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9276] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [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("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./242/binderfs" [pid 9282] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9271] exit_group(0 [pid 4998] <... unlink resumed>) = 0 [pid 4998] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9276] <... futex resumed>) = ? [pid 9271] <... exit_group resumed>) = ? [pid 9276] +++ exited with 0 +++ [pid 9282] <... futex resumed>) = ? [pid 9282] +++ exited with 0 +++ [pid 9271] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9271, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./242", 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("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./242/binderfs" [pid 9275] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... unlink resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./242/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./242/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, [pid 5003] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9275] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{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 9273] <... futex resumed>) = 0 [pid 9273] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] close(4) = 0 [pid 4999] rmdir("./242/file0" [pid 9273] <... futex resumed>) = 0 [pid 9273] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./242") = 0 [pid 4999] mkdir("./243", 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 9275] <... futex resumed>) = 1 [pid 9275] mkdir(".", 0777 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9275] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9275] 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] <... clone resumed>, child_tidptr=0x555556b565d0) = 9283 [pid 9275] <... mount resumed>) = 0 [pid 9275] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9275] chdir(".") = 0 [pid 9275] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9273] <... futex resumed>) = 0 [pid 9275] <... futex resumed>) = 1 [pid 9273] exit_group(0) = ? [ 249.687992][ T9275] overlayfs: upper fs needs to support d_type. [ 249.695820][ T9275] overlayfs: upper fs does not support tmpfile. [ 249.703250][ T9275] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 249.711289][ T9275] overlayfs: failed to resolve './file0': -2 [pid 9275] +++ exited with 0 +++ [pid 9273] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9273, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 9283 attached ) = 0 [pid 5000] umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./243", 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("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./243/binderfs") = 0 [pid 5000] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9283] set_robust_list(0x555556b565e0, 24) = 0 [pid 9283] chdir("./243") = 0 [pid 9283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9283] setpgid(0, 0) = 0 [pid 9283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9283] write(3, "1000", 4) = 4 [pid 9283] close(3) = 0 [pid 9283] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9283] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9283] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9283] 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=[9284], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9284 [pid 9283] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9283] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9284 attached [pid 9284] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9284] memfd_create("syzkaller", 0) = 3 [pid 9284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4998] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./242/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./242/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("./242/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./242") = 0 [pid 4998] mkdir("./243", 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) = 9285 [pid 5003] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9285 attached [pid 5003] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9285] set_robust_list(0x555556b565e0, 24 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9285] <... set_robust_list resumed>) = 0 [pid 5003] lstat("./242/file0", [pid 9285] chdir("./243") = 0 [pid 9285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9285] <... prctl resumed>) = 0 [pid 5003] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9285] setpgid(0, 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9285] <... setpgid resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./242/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] fstat(4, [pid 9285] <... openat resumed>) = 3 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9285] write(3, "1000", 4 [pid 5003] getdents64(4, [pid 9285] <... write resumed>) = 4 [pid 9285] close(3 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9285] <... close resumed>) = 0 [pid 5003] getdents64(4, [pid 9285] symlink("/dev/binderfs", "./binderfs" [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 9285] <... symlink resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 9285] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] rmdir("./242/file0") = 0 [pid 9285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5003] getdents64(3, [pid 9285] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9285] <... mprotect resumed>) = 0 [pid 5003] close(3) = 0 [pid 9285] 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("./242") = 0 [pid 5003] mkdir("./243", 0777 [pid 9285] <... clone resumed>, parent_tid=[9286], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9286 [pid 5003] <... mkdir resumed>) = 0 [pid 9285] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9285] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... openat resumed>) = 3 ./strace-static-x86_64: Process 9286 attached [pid 9286] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9286] memfd_create("syzkaller", 0) = 3 [pid 9286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] <... umount2 resumed>) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9286] <... mmap resumed>) = 0x7f38d9778000 [pid 5003] close(3) = 0 [pid 9284] 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] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9287 [pid 5000] lstat("./243/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./243/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 ./strace-static-x86_64: Process 9287 attached [pid 5000] close(4) = 0 [pid 5000] rmdir("./243/file0") = 0 [pid 5000] getdents64(3, [pid 9287] set_robust_list(0x555556b565e0, 24 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9287] <... set_robust_list resumed>) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./243") = 0 [pid 5000] mkdir("./244", 0777 [pid 9287] chdir("./243" [pid 5000] <... mkdir resumed>) = 0 [pid 9287] <... chdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9287] setpgid(0, 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 9287] <... setpgid resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9288 [pid 9287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9287] write(3, "1000", 4) = 4 [pid 9287] close(3) = 0 [pid 9287] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9287] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9287] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 9288 attached [pid 9287] 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=[9289], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9289 [pid 9287] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9287] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9288] set_robust_list(0x555556b565e0, 24) = 0 [pid 9288] chdir("./244") = 0 [pid 9288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9288] setpgid(0, 0) = 0 [pid 9288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9288] write(3, "1000", 4) = 4 [pid 9288] close(3) = 0 [pid 9288] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 9289 attached ) = 0 [pid 9288] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9288] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9289] set_robust_list(0x7f38e1b989e0, 24 [pid 9288] <... mprotect resumed>) = 0 [pid 9288] 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 9289] <... set_robust_list resumed>) = 0 [pid 9288] <... clone resumed>, parent_tid=[9290], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9290 [pid 9288] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9288] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9290 attached [pid 9290] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9290] memfd_create("syzkaller", 0 [pid 9289] memfd_create("syzkaller", 0 [pid 9290] <... memfd_create resumed>) = 3 [pid 9289] <... memfd_create resumed>) = 3 [pid 9290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9286] 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 9284] <... write resumed>) = 4194304 [pid 9284] munmap(0x7f38d9778000, 4194304) = 0 [pid 9284] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9284] ioctl(4, LOOP_SET_FD, 3 [pid 9289] 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 9286] <... write resumed>) = 4194304 [pid 9284] <... ioctl resumed>) = 0 [pid 9284] close(3) = 0 [pid 9284] mkdir("./file0", 0777 [pid 9286] munmap(0x7f38d9778000, 4194304 [pid 9284] <... mkdir resumed>) = 0 [pid 9284] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9286] <... munmap resumed>) = 0 [pid 9286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9286] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9286] close(3) = 0 [pid 9286] mkdir("./file0", 0777) = 0 [pid 9286] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 249.962844][ T9284] loop1: detected capacity change from 0 to 8192 [ 249.975863][ T9286] loop0: detected capacity change from 0 to 8192 [ 249.979404][ T9284] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9290] 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 9289] <... write resumed>) = 4194304 [pid 9289] munmap(0x7f38d9778000, 4194304) = 0 [pid 9289] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 250.003564][ T9286] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 250.014617][ T9284] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 250.020368][ T9286] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 250.037436][ T9284] REISERFS (device loop1): using ordered data mode [ 250.037735][ T9286] REISERFS (device loop0): using ordered data mode [ 250.044074][ T9284] reiserfs: using flush barriers [pid 9289] ioctl(4, LOOP_SET_FD, 3 [pid 9290] <... write resumed>) = 4194304 [pid 9290] munmap(0x7f38d9778000, 4194304 [pid 9289] <... ioctl resumed>) = 0 [pid 9289] close(3) = 0 [pid 9289] mkdir("./file0", 0777) = 0 [pid 9289] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9290] <... munmap resumed>) = 0 [ 250.057554][ T9289] loop5: detected capacity change from 0 to 8192 [ 250.063898][ T9284] 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 [ 250.064156][ T9284] REISERFS (device loop1): checking transaction log (loop1) [ 250.081191][ T9286] reiserfs: using flush barriers [ 250.088189][ T9284] REISERFS (device loop1): Using r5 hash to sort names [pid 9290] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9290] close(3) = 0 [pid 9290] mkdir("./file0", 0777) = 0 [pid 9290] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9284] <... mount resumed>) = 0 [pid 9284] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9284] chdir("./file0") = 0 [pid 9284] ioctl(4, LOOP_CLR_FD) = 0 [ 250.100136][ T9286] 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 [ 250.100254][ T9284] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 250.117689][ T9290] loop2: detected capacity change from 0 to 8192 [ 250.129421][ T9284] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 250.140124][ T9286] REISERFS (device loop0): checking transaction log (loop0) [pid 9284] close(4) = 0 [pid 9284] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9284] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9283] <... futex resumed>) = 0 [ 250.152249][ T9289] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 250.165849][ T9290] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 250.167361][ T9289] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 250.179496][ T9290] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 250.190445][ T9286] REISERFS (device loop0): Using r5 hash to sort names [ 250.197467][ T9290] REISERFS (device loop2): using ordered data mode [pid 9283] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9284] <... futex resumed>) = 0 [pid 9283] <... futex resumed>) = 1 [pid 9284] mkdir("./file1", 000) = 0 [pid 9284] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9284] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 250.204617][ T9286] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 250.210871][ T9290] reiserfs: using flush barriers [ 250.225503][ T9289] REISERFS (device loop5): using ordered data mode [ 250.229115][ T9290] 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 [ 250.235906][ T9289] reiserfs: using flush barriers [pid 9283] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9283] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9284] <... futex resumed>) = 0 [pid 9283] <... futex resumed>) = 1 [pid 9284] mkdir("./bus", 000 [pid 9283] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9284] <... mkdir resumed>) = 0 [pid 9284] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9283] <... futex resumed>) = 0 [pid 9284] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9283] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9286] <... mount resumed>) = 0 [pid 9283] <... futex resumed>) = 0 [pid 9283] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9286] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9286] chdir("./file0") = 0 [pid 9286] ioctl(4, LOOP_CLR_FD) = 0 [ 250.251034][ T9286] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 250.260044][ T9284] overlayfs: upper fs needs to support d_type. [ 250.266436][ T9290] REISERFS (device loop2): checking transaction log (loop2) [ 250.276339][ T9289] 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 [ 250.278516][ T9284] overlayfs: upper fs does not support tmpfile. [ 250.301635][ T9284] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9286] close(4) = 0 [pid 9286] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9285] <... futex resumed>) = 0 [pid 9286] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9285] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9285] <... futex resumed>) = 0 [pid 9286] mkdir("./file1", 000 [pid 9285] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9286] <... mkdir resumed>) = 0 [pid 9286] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9285] <... futex resumed>) = 0 [pid 9283] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9286] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9285] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9283] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9285] <... futex resumed>) = 0 [pid 9283] <... futex resumed>) = 0 [pid 9286] mkdir("./bus", 000 [pid 9285] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9286] <... mkdir resumed>) = 0 [pid 9283] <... mmap resumed>) = 0x7f38d9b57000 [pid 9286] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9283] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9286] <... futex resumed>) = 1 [pid 9285] <... futex resumed>) = 0 [pid 9283] <... mprotect resumed>) = 0 [pid 9286] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9285] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9283] 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 9286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9285] <... futex resumed>) = 0 [pid 9286] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9285] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9283] <... clone resumed>, parent_tid=[9295], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9295 [pid 9283] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9283] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9295 attached [pid 9295] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9295] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9295] 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 9284] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 250.306155][ T9290] REISERFS (device loop2): Using r5 hash to sort names [ 250.325555][ T9290] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 250.330876][ T9284] overlayfs: failed to resolve './file0': -2 [ 250.345462][ T9286] overlayfs: upper fs needs to support d_type. [ 250.352265][ T9290] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9284] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9290] <... mount resumed>) = 0 [pid 9284] <... futex resumed>) = 0 [pid 9295] <... mount resumed>) = 0 [pid 9295] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9295] chdir(".") = 0 [pid 9295] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9283] <... futex resumed>) = 0 [pid 9283] exit_group(0) = ? [pid 9295] +++ exited with 0 +++ [pid 9290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9284] +++ exited with 0 +++ [pid 9283] +++ exited with 0 +++ [pid 9285] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9283, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 9285] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9285] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9285] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] openat(AT_FDCWD, "./243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9285] <... mprotect resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9285] 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, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9285] <... clone resumed>, parent_tid=[9296], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9296 [pid 4999] getdents64(3, [pid 9285] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9285] <... futex resumed>) = 0 [pid 4999] umount2("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9285] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./243/binderfs") = 0 [pid 4999] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9296 attached [pid 9290] chdir("./file0") = 0 [pid 9290] ioctl(4, LOOP_CLR_FD) = 0 [ 250.353323][ T9289] REISERFS (device loop5): checking transaction log (loop5) [ 250.362724][ T9286] overlayfs: upper fs does not support tmpfile. [ 250.373651][ T9289] REISERFS (device loop5): Using r5 hash to sort names [ 250.376118][ T9286] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 250.383142][ T9289] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 250.392132][ T9286] overlayfs: failed to resolve './file0': -2 [pid 9290] close(4) = 0 [pid 9290] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9288] <... futex resumed>) = 0 [pid 9290] mkdir("./file1", 000 [pid 9288] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9290] <... mkdir resumed>) = 0 [pid 9288] <... futex resumed>) = 0 [pid 9290] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9288] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9290] <... futex resumed>) = 0 [pid 9288] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9290] mkdir("./bus", 000 [pid 9288] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9290] <... mkdir resumed>) = 0 [pid 9288] <... futex resumed>) = 0 [pid 9290] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9288] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9290] <... futex resumed>) = 0 [pid 9288] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9290] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9288] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9288] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9296] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9296] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9296] 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 9286] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9286] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9286] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9296] <... mount resumed>) = 0 [pid 9296] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9296] chdir(".") = 0 [pid 9296] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9285] <... futex resumed>) = 0 [pid 9296] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9285] exit_group(0 [pid 9296] <... futex resumed>) = ? [pid 9286] <... futex resumed>) = ? [pid 9285] <... exit_group resumed>) = ? [pid 9296] +++ exited with 0 +++ [pid 9286] +++ exited with 0 +++ [pid 9285] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9285, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [ 250.407290][ T9289] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 250.420337][ T9290] overlayfs: upper fs needs to support d_type. [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... restart_syscall resumed>) = 0 [pid 9289] <... mount resumed>) = 0 [pid 4999] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9289] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9289] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9289] chdir("./file0" [pid 4999] lstat("./243/file0", [pid 4998] <... openat resumed>) = 3 [pid 9289] <... chdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] fstat(3, [pid 9289] ioctl(4, LOOP_CLR_FD [pid 4999] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9289] <... ioctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./243/binderfs") = 0 [pid 4998] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9289] close(4) = 0 [pid 9288] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] openat(AT_FDCWD, "./243/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 9289] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9288] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9289] <... futex resumed>) = 1 [pid 9288] <... futex resumed>) = 0 [pid 9287] <... futex resumed>) = 0 [pid 4999] getdents64(4, [pid 9290] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9289] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9287] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9290] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9288] <... mmap resumed>) = 0x7f38d9b57000 [pid 9287] <... futex resumed>) = 0 [pid 4999] close(4 [pid 9290] <... futex resumed>) = 0 [pid 9289] mkdir("./file1", 000 [pid 9288] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9287] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... close resumed>) = 0 [pid 9290] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9289] <... mkdir resumed>) = 0 [pid 9288] <... mprotect resumed>) = 0 [pid 4999] rmdir("./243/file0" [pid 9289] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9288] 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] <... rmdir resumed>) = 0 [pid 9289] <... futex resumed>) = 1 [pid 9287] <... futex resumed>) = 0 [pid 4999] getdents64(3, [pid 9289] mkdir("./bus", 000 [pid 9288] <... clone resumed>, parent_tid=[9297], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9297 [pid 9287] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9289] <... mkdir resumed>) = 0 [pid 9288] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9287] <... futex resumed>) = 0 [pid 4999] close(3 [pid 9289] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9288] <... futex resumed>) = 0 [pid 9287] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... close resumed>) = 0 [pid 9289] <... futex resumed>) = 0 [pid 9288] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] rmdir("./243" [pid 9289] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9287] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... rmdir resumed>) = 0 [pid 9289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9287] <... futex resumed>) = 0 [pid 4999] mkdir("./244", 0777 [pid 9289] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9287] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 250.455973][ T9290] overlayfs: upper fs does not support tmpfile. [ 250.466838][ T9290] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 250.475083][ T9290] overlayfs: failed to resolve './file0': -2 [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) = 9298 ./strace-static-x86_64: Process 9298 attached [pid 9298] set_robust_list(0x555556b565e0, 24) = 0 [pid 9298] chdir("./244") = 0 [pid 9298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9298] setpgid(0, 0) = 0 [pid 9298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9298] write(3, "1000", 4) = 4 [pid 9298] close(3) = 0 [pid 9298] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9298] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9298] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9298] 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=[9299], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9299 [pid 9298] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9298] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9299 attached [pid 9299] set_robust_list(0x7f38e1b989e0, 24./strace-static-x86_64: Process 9297 attached ) = 0 [pid 9299] memfd_create("syzkaller", 0 [pid 9297] set_robust_list(0x7f38d9b779e0, 24 [pid 9299] <... memfd_create resumed>) = 3 [pid 9299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9297] <... set_robust_list resumed>) = 0 [pid 9297] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9297] 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 4998] <... umount2 resumed>) = 0 [pid 9297] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9297] chdir(".") = 0 [pid 9297] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9288] <... futex resumed>) = 0 [pid 9287] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9297] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9288] exit_group(0 [ 250.507400][ T9289] overlayfs: upper fs needs to support d_type. [ 250.513617][ T9289] overlayfs: upper fs does not support tmpfile. [pid 9287] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9287] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9287] 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=[9300], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9300 [pid 9287] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9287] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9290] <... futex resumed>) = ? [pid 9288] <... exit_group resumed>) = ? [pid 9290] +++ exited with 0 +++ ./strace-static-x86_64: Process 9300 attached [pid 9300] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9300] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9300] 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 9297] <... futex resumed>) = ? [pid 4998] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9297] +++ exited with 0 +++ [pid 9288] +++ exited with 0 +++ [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9288, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4998] lstat("./243/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9300] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./244", 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("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./244/binderfs") = 0 [pid 5000] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9300] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "./243/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9300] <... openat resumed>) = 4 [pid 4998] <... openat resumed>) = 4 [pid 9300] chdir("." [pid 4998] fstat(4, [pid 9300] <... chdir resumed>) = 0 [pid 9289] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9299] 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] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9300] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9289] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] getdents64(4, [pid 9300] <... futex resumed>) = 1 [pid 9289] <... futex resumed>) = 0 [pid 9287] <... futex resumed>) = 0 [pid 9300] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9289] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9287] exit_group(0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9300] <... futex resumed>) = ? [pid 9289] <... futex resumed>) = ? [pid 9287] <... exit_group resumed>) = ? [pid 4998] getdents64(4, [pid 9300] +++ exited with 0 +++ [pid 9289] +++ exited with 0 +++ [pid 9287] +++ exited with 0 +++ [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9287, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 4998] close(4 [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 4998] <... close resumed>) = 0 [pid 5003] <... restart_syscall resumed>) = 0 [pid 4998] rmdir("./243/file0" [pid 5003] umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... rmdir resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] getdents64(3, [pid 5003] <... openat resumed>) = 3 [pid 5003] fstat(3, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] close(3 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... close resumed>) = 0 [pid 5003] umount2("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] rmdir("./243" [pid 5003] lstat("./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5003] unlink("./243/binderfs" [pid 4998] mkdir("./244", 0777 [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... mkdir resumed>) = 0 [ 250.556677][ T9289] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 250.564765][ T9289] overlayfs: failed to resolve './file0': -2 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] <... umount2 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) = 0 [pid 5000] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./244/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./244/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("./244/file0") = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9301 [pid 5000] close(3) = 0 [pid 5000] rmdir("./244") = 0 [pid 5000] mkdir("./245", 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./strace-static-x86_64: Process 9301 attached [pid 9301] set_robust_list(0x555556b565e0, 24) = 0 [pid 9301] chdir("./244") = 0 [pid 9301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9302 [pid 9301] setpgid(0, 0) = 0 [pid 9301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9301] write(3, "1000", 4) = 4 [pid 9301] close(3) = 0 [pid 9301] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9301] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9301] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9301] 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=[9303], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9303 [pid 9301] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9301] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9302 attached [pid 9302] set_robust_list(0x555556b565e0, 24) = 0 [pid 9302] chdir("./245") = 0 [pid 9302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9302] setpgid(0, 0) = 0 [pid 9302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9302] write(3, "1000", 4) = 4 [pid 9302] close(3) = 0 [pid 9302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9302] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9302] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9302] 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 9303 attached , parent_tid=[9304], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9304 [pid 9303] set_robust_list(0x7f38e1b989e0, 24 [pid 9302] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9303] <... set_robust_list resumed>) = 0 [pid 9302] <... futex resumed>) = 0 [pid 9303] memfd_create("syzkaller", 0 [pid 9302] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9303] <... memfd_create resumed>) = 3 [pid 9303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9299] <... write resumed>) = 4194304 [pid 9299] munmap(0x7f38d9778000, 4194304) = 0 [pid 9299] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9299] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9304 attached [pid 9304] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9304] memfd_create("syzkaller", 0) = 3 [pid 9304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9299] <... ioctl resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 9304] <... mmap resumed>) = 0x7f38d9778000 [pid 9299] close(3 [pid 5003] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9299] <... close resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9299] mkdir("./file0", 0777 [pid 5003] lstat("./243/file0", [pid 9299] <... mkdir resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9299] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./243/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("./243/file0") = 0 [pid 9303] 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] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./243") = 0 [pid 5003] mkdir("./244", 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) = 9306 [pid 9304] 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 9306 attached [pid 9306] set_robust_list(0x555556b565e0, 24) = 0 [pid 9306] chdir("./244") = 0 [pid 9306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9306] setpgid(0, 0 [pid 9303] <... write resumed>) = 4194304 [ 250.683787][ T9299] loop1: detected capacity change from 0 to 8192 [ 250.711068][ T9299] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9306] <... setpgid resumed>) = 0 [pid 9303] munmap(0x7f38d9778000, 4194304 [pid 9306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9303] <... munmap resumed>) = 0 [pid 9303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9303] ioctl(4, LOOP_SET_FD, 3 [pid 9306] <... openat resumed>) = 3 [pid 9306] write(3, "1000", 4) = 4 [pid 9306] close(3) = 0 [pid 9306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9306] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9306] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9306] 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=[9307], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9307 [pid 9306] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9306] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9303] <... ioctl resumed>) = 0 [pid 9303] close(3) = 0 [pid 9303] mkdir("./file0", 0777) = 0 [pid 9303] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9307 attached [pid 9307] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9307] memfd_create("syzkaller", 0) = 3 [pid 9307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9304] <... write resumed>) = 4194304 [ 250.748105][ T9299] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 250.757436][ T9299] REISERFS (device loop1): using ordered data mode [ 250.765512][ T9299] reiserfs: using flush barriers [ 250.768026][ T9303] loop0: detected capacity change from 0 to 8192 [ 250.777168][ T9299] 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 9304] munmap(0x7f38d9778000, 4194304) = 0 [pid 9304] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 250.799483][ T9303] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 250.799856][ T9299] REISERFS (device loop1): checking transaction log (loop1) [ 250.820188][ T9303] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 250.827310][ T9304] loop2: detected capacity change from 0 to 8192 [ 250.829475][ T9303] REISERFS (device loop0): using ordered data mode [ 250.835931][ T9299] REISERFS (device loop1): Using r5 hash to sort names [pid 9304] ioctl(4, LOOP_SET_FD, 3 [pid 9307] 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 9304] <... ioctl resumed>) = 0 [pid 9304] close(3) = 0 [pid 9304] mkdir("./file0", 0777) = 0 [pid 9304] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9307] <... write resumed>) = 4194304 [pid 9299] <... mount resumed>) = 0 [pid 9307] munmap(0x7f38d9778000, 4194304) = 0 [pid 9307] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9307] ioctl(4, LOOP_SET_FD, 3) = 0 [ 250.842210][ T9303] reiserfs: using flush barriers [ 250.849905][ T9299] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 250.866879][ T9299] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 250.875951][ T9303] 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 [ 250.890867][ T9307] loop5: detected capacity change from 0 to 8192 [pid 9299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9307] close(3 [pid 9299] <... openat resumed>) = 3 [pid 9299] chdir("./file0" [pid 9307] <... close resumed>) = 0 [pid 9307] mkdir("./file0", 0777 [pid 9299] <... chdir resumed>) = 0 [pid 9307] <... mkdir resumed>) = 0 [pid 9299] ioctl(4, LOOP_CLR_FD [pid 9307] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9299] <... ioctl resumed>) = 0 [pid 9299] close(4) = 0 [pid 9299] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9298] <... futex resumed>) = 0 [pid 9299] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9298] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9298] <... futex resumed>) = 0 [pid 9299] mkdir("./file1", 000 [pid 9298] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9299] <... mkdir resumed>) = 0 [pid 9299] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9298] <... futex resumed>) = 0 [pid 9299] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9298] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9298] <... futex resumed>) = 0 [pid 9299] mkdir("./bus", 000 [pid 9298] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9299] <... mkdir resumed>) = 0 [pid 9299] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9298] <... futex resumed>) = 0 [pid 9299] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9298] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 250.892523][ T9303] REISERFS (device loop0): checking transaction log (loop0) [ 250.906639][ T9304] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 250.920548][ T9304] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 250.932242][ T9303] REISERFS (device loop0): Using r5 hash to sort names [ 250.939180][ T9299] overlayfs: upper fs needs to support d_type. [pid 9298] <... futex resumed>) = 0 [pid 9299] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 250.939597][ T9303] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 250.945360][ T9299] overlayfs: upper fs does not support tmpfile. [ 250.958504][ T9304] REISERFS (device loop2): using ordered data mode [ 250.965725][ T9307] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 250.971534][ T9304] reiserfs: using flush barriers [ 250.984936][ T9299] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9298] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9303] <... mount resumed>) = 0 [pid 9298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9303] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9298] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9303] <... openat resumed>) = 3 [pid 9298] <... futex resumed>) = 0 [pid 9303] chdir("./file0" [pid 9298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9303] <... chdir resumed>) = 0 [pid 9298] <... mmap resumed>) = 0x7f38d9b57000 [pid 9303] ioctl(4, LOOP_CLR_FD [pid 9298] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9303] <... ioctl resumed>) = 0 [pid 9298] <... mprotect resumed>) = 0 [ 250.989555][ T9303] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 250.996311][ T9307] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 251.007156][ T9299] overlayfs: failed to resolve './file0': -2 [ 251.014700][ T9307] REISERFS (device loop5): using ordered data mode [ 251.027766][ T9307] reiserfs: using flush barriers [ 251.033588][ T9307] 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 9303] close(4 [pid 9298] 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 9303] <... close resumed>) = 0 [pid 9303] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9298] <... clone resumed>, parent_tid=[9311], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9311 [pid 9303] <... futex resumed>) = 1 [pid 9298] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9303] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9298] <... futex resumed>) = 0 [pid 9298] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9301] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9311 attached [pid 9301] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9311] set_robust_list(0x7f38d9b779e0, 24 [pid 9303] <... futex resumed>) = 0 [pid 9301] <... futex resumed>) = 1 [pid 9311] <... set_robust_list resumed>) = 0 [pid 9303] mkdir("./file1", 000 [pid 9301] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9311] mkdir(".", 0777 [pid 9303] <... mkdir resumed>) = 0 [pid 9303] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9303] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9311] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9301] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9311] 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 9301] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9311] <... mount resumed>) = 0 [pid 9303] <... futex resumed>) = 0 [pid 9301] <... futex resumed>) = 1 [pid 9311] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9303] mkdir("./bus", 000 [ 251.034145][ T9304] 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 [ 251.050003][ T9307] REISERFS (device loop5): checking transaction log (loop5) [ 251.074463][ T9304] REISERFS (device loop2): checking transaction log (loop2) [ 251.091775][ T9307] REISERFS (device loop5): Using r5 hash to sort names [pid 9301] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9311] <... openat resumed>) = 4 [pid 9303] <... mkdir resumed>) = 0 [pid 9303] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9301] <... futex resumed>) = 0 [pid 9301] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9303] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9311] chdir("." [pid 9301] <... futex resumed>) = 0 [pid 9301] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9311] <... chdir resumed>) = 0 [pid 9299] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9311] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9299] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9311] <... futex resumed>) = 1 [pid 9299] <... futex resumed>) = 0 [pid 9298] <... futex resumed>) = 0 [pid 9311] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9299] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9298] exit_group(0 [pid 9311] <... futex resumed>) = ? [pid 9299] <... futex resumed>) = ? [pid 9298] <... exit_group resumed>) = ? [pid 9311] +++ exited with 0 +++ [pid 9299] +++ exited with 0 +++ [pid 9298] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9298, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4999] umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./244", 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("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./244/binderfs") = 0 [pid 4999] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9304] <... mount resumed>) = 0 [pid 9301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9301] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 251.099991][ T9304] REISERFS (device loop2): Using r5 hash to sort names [ 251.100299][ T9303] overlayfs: upper fs needs to support d_type. [ 251.108047][ T9304] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 251.113729][ T9303] overlayfs: upper fs does not support tmpfile. [ 251.125989][ T9304] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9301] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9301] 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=[9312], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9312 [pid 9301] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9301] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9304] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 9312 attached [pid 9312] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9312] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9312] 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 9304] <... openat resumed>) = 3 [pid 9304] chdir("./file0" [pid 9307] <... mount resumed>) = 0 [pid 9304] <... chdir resumed>) = 0 [pid 9307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9304] ioctl(4, LOOP_CLR_FD [pid 9307] <... openat resumed>) = 3 [pid 9304] <... ioctl resumed>) = 0 [pid 9307] chdir("./file0" [pid 9304] close(4) = 0 [pid 9304] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9302] <... futex resumed>) = 0 [pid 9304] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9302] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9307] <... chdir resumed>) = 0 [pid 9304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9302] <... futex resumed>) = 0 [pid 9307] ioctl(4, LOOP_CLR_FD [pid 9304] mkdir("./file1", 000 [pid 9302] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9312] <... mount resumed>) = 0 [pid 9312] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9312] chdir(".") = 0 [pid 9312] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9301] <... futex resumed>) = 0 [pid 9312] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9307] <... ioctl resumed>) = 0 [pid 9304] <... mkdir resumed>) = 0 [pid 9307] close(4 [pid 9304] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9307] <... close resumed>) = 0 [pid 9304] <... futex resumed>) = 1 [pid 9302] <... futex resumed>) = 0 [pid 9303] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9307] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9304] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9303] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9302] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9307] <... futex resumed>) = 1 [pid 9306] <... futex resumed>) = 0 [pid 9304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9303] <... futex resumed>) = 0 [pid 9302] <... futex resumed>) = 0 [pid 9307] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9306] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9304] mkdir("./bus", 000 [pid 9303] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9302] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9306] <... futex resumed>) = 0 [pid 9307] mkdir("./file1", 000 [pid 9306] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9304] <... mkdir resumed>) = 0 [pid 9301] exit_group(0 [pid 4999] <... umount2 resumed>) = 0 [pid 9312] <... futex resumed>) = ? [pid 9307] <... mkdir resumed>) = 0 [pid 9304] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9303] <... futex resumed>) = ? [pid 9301] <... exit_group resumed>) = ? [pid 9312] +++ exited with 0 +++ [pid 9307] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9304] <... futex resumed>) = 1 [pid 9303] +++ exited with 0 +++ [pid 9302] <... futex resumed>) = 0 [pid 9307] <... futex resumed>) = 1 [pid 9306] <... futex resumed>) = 0 [pid 9304] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9302] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9307] mkdir("./bus", 000 [pid 9306] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9302] <... futex resumed>) = 0 [pid 9307] <... mkdir resumed>) = 0 [pid 9306] <... futex resumed>) = 0 [ 251.142407][ T9307] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 251.155963][ T9307] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 251.167108][ T9303] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 251.177485][ T9303] overlayfs: failed to resolve './file0': -2 [pid 9304] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9302] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9307] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9306] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9301] +++ exited with 0 +++ [pid 9307] <... futex resumed>) = 0 [pid 9306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9307] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9306] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9306] <... futex resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9301, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 9307] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9306] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./244/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./244/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("./244/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./244") = 0 [pid 4999] mkdir("./245", 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) = 9313 ./strace-static-x86_64: Process 9313 attached [pid 9313] set_robust_list(0x555556b565e0, 24) = 0 [pid 9313] chdir("./245") = 0 [pid 9313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9313] setpgid(0, 0) = 0 [pid 9313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9313] write(3, "1000", 4) = 4 [pid 9313] close(3) = 0 [pid 9313] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4998] umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9313] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9313] <... mmap resumed>) = 0x7f38e1b78000 [pid 9313] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4998] openat(AT_FDCWD, "./244", 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, [pid 9313] <... mprotect resumed>) = 0 [pid 9313] 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] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9313] <... clone resumed>, parent_tid=[9314], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9314 [pid 4998] unlink("./244/binderfs" [pid 9313] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... unlink resumed>) = 0 [pid 9313] <... futex resumed>) = 0 [pid 9313] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 251.215186][ T9304] overlayfs: upper fs needs to support d_type. [ 251.225762][ T9307] overlayfs: upper fs needs to support d_type. [ 251.228275][ T9304] overlayfs: upper fs does not support tmpfile. [ 251.238504][ T9307] overlayfs: upper fs does not support tmpfile. [ 251.251835][ T9304] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 4998] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9302] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9302] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9302] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9302] 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=[9315], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9315 [pid 9302] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9302] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9306] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9306] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9306] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9306] 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=[9316], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9316 [pid 9306] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9306] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9304] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9304] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9304] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9316 attached [pid 9316] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9316] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9316] 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 9315 attached [pid 9315] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9315] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9315] 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 9314 attached ) = 0 [pid 9315] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9315] chdir(".") = 0 [pid 9315] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9302] <... futex resumed>) = 0 [pid 9315] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9302] exit_group(0 [pid 9315] <... futex resumed>) = ? [pid 9304] <... futex resumed>) = ? [pid 9302] <... exit_group resumed>) = ? [pid 9315] +++ exited with 0 +++ [pid 9304] +++ exited with 0 +++ [pid 9302] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9302, si_uid=0, si_status=0, si_utime=0, si_stime=27 /* 0.27 s */} --- [pid 9314] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9316] <... mount resumed>) = 0 [pid 9316] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5000] umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9316] chdir("." [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9316] <... chdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9316] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9306] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 9316] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [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("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9314] memfd_create("syzkaller", 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9314] <... memfd_create resumed>) = 3 [pid 5000] lstat("./245/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./245/binderfs") = 0 [ 251.261409][ T9304] overlayfs: failed to resolve './file0': -2 [ 251.282923][ T9307] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5000] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9314] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9307] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9307] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9307] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9306] exit_group(0 [pid 9316] <... futex resumed>) = ? [pid 9306] <... exit_group resumed>) = ? [pid 9316] +++ exited with 0 +++ [pid 9307] <... futex resumed>) = ? [pid 9307] +++ exited with 0 +++ [pid 9306] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9306, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5003] umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./244", 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("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./244/binderfs") = 0 [pid 5003] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./244/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./244/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("./244/file0") = 0 [ 251.308730][ T9307] overlayfs: failed to resolve './file0': -2 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./244") = 0 [pid 4998] mkdir("./245", 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) = 9317 ./strace-static-x86_64: Process 9317 attached [pid 9317] set_robust_list(0x555556b565e0, 24) = 0 [pid 9317] chdir("./245") = 0 [pid 9317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9317] setpgid(0, 0) = 0 [pid 9317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9317] write(3, "1000", 4) = 4 [pid 9317] close(3) = 0 [pid 9314] 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 9317] symlink("/dev/binderfs", "./binderfs" [pid 5003] <... umount2 resumed>) = 0 [pid 5000] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./245/file0", [pid 9317] <... symlink resumed>) = 0 [pid 9317] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9317] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9317] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9317] <... mprotect resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./245/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9317] 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] <... openat resumed>) = 4 [pid 5000] fstat(4, [pid 9317] <... clone resumed>, parent_tid=[9318], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9318 [pid 9317] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9317] <... futex resumed>) = 0 [pid 9317] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [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("./245/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./245") = 0 [pid 5000] mkdir("./246", 0777./strace-static-x86_64: Process 9318 attached ) = 0 [pid 9318] set_robust_list(0x7f38e1b989e0, 24 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9318] <... set_robust_list resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9318] memfd_create("syzkaller", 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 9318] <... memfd_create resumed>) = 3 [pid 5000] <... close resumed>) = 0 [pid 9318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9318] <... mmap resumed>) = 0x7f38d9778000 [pid 5003] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9319 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 9319 attached [pid 9314] <... write resumed>) = 4194304 [pid 5003] lstat("./244/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9314] munmap(0x7f38d9778000, 4194304 [pid 5003] openat(AT_FDCWD, "./244/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, [pid 9319] set_robust_list(0x555556b565e0, 24 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9314] <... munmap resumed>) = 0 [pid 5003] close(4 [pid 9314] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5003] <... close resumed>) = 0 [pid 9314] <... openat resumed>) = 4 [pid 5003] rmdir("./244/file0" [pid 9319] <... set_robust_list resumed>) = 0 [pid 9314] ioctl(4, LOOP_SET_FD, 3 [pid 9319] chdir("./246" [pid 5003] <... rmdir resumed>) = 0 [pid 9319] <... chdir resumed>) = 0 [pid 9319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9319] setpgid(0, 0) = 0 [pid 9319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9319] write(3, "1000", 4) = 4 [pid 9319] close(3) = 0 [pid 9319] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9319] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9319] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9319] 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, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9319] <... clone resumed>, parent_tid=[9320], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9320 [pid 5003] close(3 [pid 9319] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... close resumed>) = 0 [pid 9319] <... futex resumed>) = 0 [pid 5003] rmdir("./244" [pid 9319] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./245", 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./strace-static-x86_64: Process 9320 attached [pid 9318] 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 9314] <... ioctl resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9321 [pid 9320] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9314] close(3 [pid 9320] memfd_create("syzkaller", 0 [pid 9314] <... close resumed>) = 0 [pid 9314] mkdir("./file0", 0777) = 0 [pid 9320] <... memfd_create resumed>) = 3 [pid 9314] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9321 attached [pid 9320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9321] set_robust_list(0x555556b565e0, 24) = 0 [pid 9320] <... mmap resumed>) = 0x7f38d9778000 [pid 9321] chdir("./245") = 0 [pid 9321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9321] setpgid(0, 0) = 0 [pid 9321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9321] write(3, "1000", 4) = 4 [pid 9321] close(3) = 0 [pid 9321] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9321] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9321] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9321] 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=[9323], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9323 [pid 9321] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9323 attached [pid 9323] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9323] memfd_create("syzkaller", 0) = 3 [pid 9323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 251.449659][ T9314] loop1: detected capacity change from 0 to 8192 [ 251.477008][ T9314] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9318] <... write resumed>) = 4194304 [pid 9318] munmap(0x7f38d9778000, 4194304) = 0 [pid 9318] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9318] ioctl(4, LOOP_SET_FD, 3 [pid 9320] 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 9318] <... ioctl resumed>) = 0 [pid 9318] close(3) = 0 [pid 9318] mkdir("./file0", 0777) = 0 [pid 9318] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 251.517693][ T9314] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 251.524284][ T9318] loop0: detected capacity change from 0 to 8192 [ 251.539577][ T9314] REISERFS (device loop1): using ordered data mode [ 251.546425][ T9314] reiserfs: using flush barriers [ 251.552113][ T9318] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9323] 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 9320] <... write resumed>) = 4194304 [pid 9320] munmap(0x7f38d9778000, 4194304) = 0 [pid 9320] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9320] ioctl(4, LOOP_SET_FD, 3 [pid 9323] <... write resumed>) = 4194304 [pid 9323] munmap(0x7f38d9778000, 4194304) = 0 [pid 9323] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 251.566394][ T9314] 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 [ 251.582778][ T9318] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 251.589906][ T9320] loop2: detected capacity change from 0 to 8192 [ 251.598912][ T9318] REISERFS (device loop0): using ordered data mode [ 251.605711][ T9323] loop5: detected capacity change from 0 to 8192 [pid 9323] ioctl(4, LOOP_SET_FD, 3 [pid 9320] <... ioctl resumed>) = 0 [pid 9320] close(3) = 0 [pid 9320] mkdir("./file0", 0777) = 0 [pid 9320] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9323] <... ioctl resumed>) = 0 [pid 9323] close(3) = 0 [pid 9323] mkdir("./file0", 0777) = 0 [ 251.606243][ T9314] REISERFS (device loop1): checking transaction log (loop1) [ 251.616572][ T9318] reiserfs: using flush barriers [ 251.620469][ T9314] REISERFS (device loop1): Using r5 hash to sort names [ 251.626440][ T9320] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 251.631426][ T9314] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 251.644467][ T9323] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 251.657197][ T9318] 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 [ 251.670033][ T9323] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 251.686375][ T9320] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 251.695542][ T9323] REISERFS (device loop5): using ordered data mode [pid 9323] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9314] <... mount resumed>) = 0 [pid 9314] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9314] chdir("./file0") = 0 [pid 9314] ioctl(4, LOOP_CLR_FD) = 0 [pid 9314] close(4) = 0 [pid 9314] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9314] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9313] <... futex resumed>) = 0 [pid 9313] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9313] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9314] <... futex resumed>) = 0 [pid 9314] mkdir("./file1", 000) = 0 [pid 9314] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9313] <... futex resumed>) = 0 [pid 9313] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9313] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9314] mkdir("./bus", 000) = 0 [pid 9314] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9313] <... futex resumed>) = 0 [pid 9313] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9313] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 251.704749][ T9314] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 251.711067][ T9323] reiserfs: using flush barriers [ 251.726661][ T9323] 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 [ 251.732409][ T9318] REISERFS (device loop0): checking transaction log (loop0) [ 251.758033][ T9323] REISERFS (device loop5): checking transaction log (loop5) [pid 9314] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9313] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 251.758797][ T9320] REISERFS (device loop2): using ordered data mode [ 251.765966][ T9314] overlayfs: upper fs needs to support d_type. [ 251.772481][ T9323] REISERFS (device loop5): Using r5 hash to sort names [ 251.778551][ T9314] overlayfs: upper fs does not support tmpfile. [ 251.785527][ T9323] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 251.792054][ T9314] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 251.804389][ T9320] reiserfs: using flush barriers [pid 9313] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9313] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9313] 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 9327 attached [pid 9327] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9327] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9323] <... mount resumed>) = 0 [pid 9323] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9323] chdir("./file0") = 0 [pid 9323] ioctl(4, LOOP_CLR_FD) = 0 [pid 9323] close(4) = 0 [pid 9323] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9321] <... futex resumed>) = 0 [pid 9321] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9323] <... futex resumed>) = 1 [pid 9323] mkdir("./file1", 000) = 0 [pid 9323] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9321] <... futex resumed>) = 0 [pid 9321] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9323] <... futex resumed>) = 1 [pid 9323] mkdir("./bus", 000 [pid 9313] <... clone resumed>, parent_tid=[9327], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9327 [pid 9323] <... mkdir resumed>) = 0 [pid 9323] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9321] <... futex resumed>) = 0 [pid 9321] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9323] <... futex resumed>) = 1 [ 251.812812][ T9314] overlayfs: failed to resolve './file0': -2 [ 251.816829][ T9323] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 251.822630][ T9318] REISERFS (device loop0): Using r5 hash to sort names [ 251.841611][ T9320] 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 9323] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9313] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9314] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9313] <... futex resumed>) = 1 [pid 9327] <... futex resumed>) = 0 [pid 9327] mkdir(".", 0777 [pid 9314] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9313] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9314] <... futex resumed>) = 0 [pid 9327] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9318] <... mount resumed>) = 0 [pid 9314] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9318] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9327] 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 9318] <... openat resumed>) = 3 [pid 9327] <... mount resumed>) = 0 [pid 9327] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9327] chdir(".") = 0 [pid 9327] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9313] <... futex resumed>) = 0 [pid 9313] exit_group(0 [pid 9314] <... futex resumed>) = ? [pid 9313] <... exit_group resumed>) = ? [pid 9314] +++ exited with 0 +++ [pid 9327] <... futex resumed>) = ? [pid 9327] +++ exited with 0 +++ [pid 9313] +++ exited with 0 +++ [pid 9318] chdir("./file0" [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9313, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 9318] <... chdir resumed>) = 0 [pid 9318] ioctl(4, LOOP_CLR_FD) = 0 [pid 9318] close(4 [ 251.841985][ T9318] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 251.874385][ T9323] overlayfs: upper fs needs to support d_type. [ 251.874820][ T9318] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 251.891740][ T9320] REISERFS (device loop2): checking transaction log (loop2) [ 251.900693][ T9323] overlayfs: upper fs does not support tmpfile. [ 251.903940][ T9320] REISERFS (device loop2): Using r5 hash to sort names [pid 4999] umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9318] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9321] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9321] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9321] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9321] 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=[9328], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9328 [pid 9321] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9321] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9318] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9318] <... futex resumed>) = 1 [pid 9317] <... futex resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9318] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9317] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9317] <... futex resumed>) = 0 [pid 4999] fstat(3, [pid 9318] mkdir("./file1", 000 [pid 9317] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9318] <... mkdir resumed>) = 0 [pid 4999] getdents64(3, [pid 9318] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9317] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9318] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9317] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9317] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9318] mkdir("./bus", 000 [pid 9317] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] lstat("./245/binderfs", [pid 9318] <... mkdir resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9323] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9318] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] unlink("./245/binderfs" [pid 9323] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9318] <... futex resumed>) = 1 [pid 4999] <... unlink resumed>) = 0 [pid 9317] <... futex resumed>) = 0 [pid 9323] <... futex resumed>) = 0 [pid 9318] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9317] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9323] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9317] <... futex resumed>) = 0 [pid 4999] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9318] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9317] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9328 attached [pid 9320] <... mount resumed>) = 0 [pid 9320] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9328] set_robust_list(0x7f38d9b779e0, 24 [pid 9320] <... openat resumed>) = 3 [pid 9328] <... set_robust_list resumed>) = 0 [pid 9320] chdir("./file0" [pid 9328] mkdir(".", 0777 [pid 9320] <... chdir resumed>) = 0 [pid 9328] <... mkdir resumed>) = -1 EEXIST (File exists) [ 251.908024][ T9323] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 251.914980][ T9320] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 251.922735][ T9323] overlayfs: failed to resolve './file0': -2 [ 251.950693][ T9320] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9320] ioctl(4, LOOP_CLR_FD [pid 9328] 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 9320] <... ioctl resumed>) = 0 [pid 9320] close(4) = 0 [pid 9320] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9320] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9319] <... futex resumed>) = 0 [pid 9319] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9320] <... futex resumed>) = 0 [pid 9319] <... futex resumed>) = 1 [pid 9320] mkdir("./file1", 000 [pid 9319] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9320] <... mkdir resumed>) = 0 [pid 9320] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9320] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9319] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9320] <... futex resumed>) = 0 [pid 9319] <... futex resumed>) = 1 [pid 9320] mkdir("./bus", 000 [pid 9328] <... mount resumed>) = 0 [pid 9320] <... mkdir resumed>) = 0 [pid 9319] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9320] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9320] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9319] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9328] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9319] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9320] <... futex resumed>) = 0 [pid 9328] <... openat resumed>) = 4 [pid 9319] <... futex resumed>) = 1 [pid 9328] chdir("." [pid 9320] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9319] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9328] <... chdir resumed>) = 0 [pid 9328] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9321] <... futex resumed>) = 0 [pid 9328] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9321] exit_group(0 [pid 9328] <... futex resumed>) = ? [pid 9323] <... futex resumed>) = ? [pid 9321] <... exit_group resumed>) = ? [pid 9328] +++ exited with 0 +++ [pid 9323] +++ exited with 0 +++ [pid 9321] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9321, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9317] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9317] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9317] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... openat resumed>) = 3 [pid 9317] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] fstat(3, [pid 9317] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9317] <... mprotect resumed>) = 0 [pid 5003] getdents64(3, [pid 9317] 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 /* 4 entries */, 32768) = 112 [ 251.969869][ T9318] overlayfs: upper fs needs to support d_type. [ 251.985896][ T9320] overlayfs: upper fs needs to support d_type. [ 251.992473][ T9318] overlayfs: upper fs does not support tmpfile. [ 252.012417][ T9318] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5003] umount2("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 9317] <... clone resumed>, parent_tid=[9329], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9329 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9317] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] lstat("./245/binderfs", [pid 9317] <... futex resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9319] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9318] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9317] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] unlink("./245/binderfs" [pid 4999] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9319] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9318] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9319] <... futex resumed>) = 0 [pid 9318] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 9329 attached [pid 9329] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9329] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9329] 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 9319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9318] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] lstat("./245/file0", [pid 9319] <... mmap resumed>) = 0x7f38d9b57000 [pid 9319] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9319] <... mprotect resumed>) = 0 [pid 4999] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9319] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./245/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9319] <... clone resumed>, parent_tid=[9330], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9330 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9319] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(4, [pid 9319] <... futex resumed>) = 0 [pid 9319] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9329] <... mount resumed>) = 0 [pid 4999] getdents64(4, [pid 9329] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9329] chdir(".") = 0 [pid 4999] close(4 [pid 9329] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9317] <... futex resumed>) = 0 [pid 9329] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9317] exit_group(0 [pid 4999] <... close resumed>) = 0 [pid 9329] <... futex resumed>) = ? [pid 9318] <... futex resumed>) = ? [pid 9317] <... exit_group resumed>) = ? [pid 4999] rmdir("./245/file0" [pid 9318] +++ exited with 0 +++ [pid 9329] +++ exited with 0 +++ [pid 9317] +++ exited with 0 +++ [pid 4999] <... rmdir resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9317, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./245") = 0 [pid 4999] mkdir("./246", 0777 [pid 4998] umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... mkdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] getdents64(3, [pid 4999] <... openat resumed>) = 3 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 9330 attached [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] umount2("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(3 [pid 4998] lstat("./245/binderfs", [pid 9330] set_robust_list(0x7f38d9b779e0, 24 [pid 4999] <... close resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9330] <... set_robust_list resumed>) = 0 [pid 4998] unlink("./245/binderfs" [pid 9330] mkdir(".", 0777 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... unlink resumed>) = 0 [pid 9330] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4998] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9331 attached [pid 9330] 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] <... umount2 resumed>) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9331 [pid 9331] set_robust_list(0x555556b565e0, 24 [pid 5003] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9331] <... set_robust_list resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9331] chdir("./246" [pid 5003] lstat("./245/file0", [pid 9331] <... chdir resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9320] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9331] <... prctl resumed>) = 0 [pid 9330] <... mount resumed>) = 0 [pid 9320] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9331] setpgid(0, 0 [pid 9330] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9320] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./245/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9320] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9330] <... openat resumed>) = 4 [pid 9331] <... setpgid resumed>) = 0 [pid 9331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9330] chdir("." [pid 5003] <... openat resumed>) = 4 [pid 9331] write(3, "1000", 4) = 4 [ 252.018754][ T9320] overlayfs: upper fs does not support tmpfile. [ 252.025334][ T9318] overlayfs: failed to resolve './file0': -2 [ 252.027990][ T9320] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 252.054983][ T9320] overlayfs: failed to resolve './file0': -2 [pid 9331] close(3 [pid 5003] fstat(4, [pid 9331] <... close resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9331] symlink("/dev/binderfs", "./binderfs" [pid 5003] getdents64(4, [pid 9331] <... symlink resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9330] <... chdir resumed>) = 0 [pid 9331] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9330] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(4, [pid 9331] <... futex resumed>) = 0 [pid 9330] <... futex resumed>) = 1 [pid 9319] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9330] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9319] exit_group(0 [pid 5003] close(4 [pid 9331] <... mmap resumed>) = 0x7f38e1b78000 [pid 9330] <... futex resumed>) = ? [pid 9320] <... futex resumed>) = ? [pid 9319] <... exit_group resumed>) = ? [pid 5003] <... close resumed>) = 0 [pid 9330] +++ exited with 0 +++ [pid 9331] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9320] +++ exited with 0 +++ [pid 5003] rmdir("./245/file0" [pid 9331] <... mprotect resumed>) = 0 [pid 9331] 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 9319] +++ exited with 0 +++ [pid 5003] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, [pid 9331] <... clone resumed>, parent_tid=[9332], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9332 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9319, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9331] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] close(3 [pid 5000] umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9331] <... futex resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9331] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] rmdir("./245" [pid 5000] openat(AT_FDCWD, "./246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... rmdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 5003] mkdir("./246", 0777 [pid 5000] fstat(3, [pid 5003] <... mkdir resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] getdents64(3, [pid 5003] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 5000] umount2("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] close(3 [pid 5000] lstat("./246/binderfs", [pid 5003] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] unlink("./246/binderfs" [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9333 [pid 5000] <... unlink resumed>) = 0 [pid 5000] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9332 attached [pid 9332] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9332] memfd_create("syzkaller", 0) = 3 [pid 9332] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9333 attached [pid 9333] set_robust_list(0x555556b565e0, 24) = 0 [pid 9333] chdir("./246") = 0 [pid 9333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9333] setpgid(0, 0) = 0 [pid 9333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9333] write(3, "1000", 4) = 4 [pid 9333] close(3) = 0 [pid 9333] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9333] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9333] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9333] 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=[9334], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9334 [pid 9333] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9333] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9334 attached [pid 4998] <... umount2 resumed>) = 0 [pid 9334] set_robust_list(0x7f38e1b989e0, 24 [pid 4998] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9334] <... set_robust_list resumed>) = 0 [pid 5000] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9334] memfd_create("syzkaller", 0 [pid 4998] lstat("./245/file0", [pid 9334] <... memfd_create resumed>) = 3 [pid 9334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9334] <... mmap resumed>) = 0x7f38d9778000 [pid 5000] lstat("./246/file0", [pid 4998] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9332] 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] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "./245/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./246/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 4 [pid 5000] <... openat resumed>) = 4 [pid 4998] fstat(4, [pid 5000] fstat(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 4998] getdents64(4, [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 4998] close(4 [pid 5000] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5000] rmdir("./246/file0" [pid 4998] rmdir("./245/file0" [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4998] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 4998] close(3 [pid 5000] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 5000] rmdir("./246" [pid 4998] rmdir("./245" [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./247", 0777 [pid 4998] <... rmdir resumed>) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 4998] mkdir("./246", 0777 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] <... mkdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... openat resumed>) = 3 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9334] 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] <... close resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] close(3 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9335 [pid 4998] <... close resumed>) = 0 ./strace-static-x86_64: Process 9335 attached [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9336 [pid 9335] set_robust_list(0x555556b565e0, 24) = 0 [pid 9335] chdir("./247") = 0 [pid 9335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 9336 attached [pid 9335] setpgid(0, 0 [pid 9336] set_robust_list(0x555556b565e0, 24) = 0 [pid 9336] chdir("./246") = 0 [pid 9336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9336] setpgid(0, 0) = 0 [pid 9336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9335] <... setpgid resumed>) = 0 [pid 9336] <... openat resumed>) = 3 [pid 9336] write(3, "1000", 4) = 4 [pid 9336] close(3) = 0 [pid 9336] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9336] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9336] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9336] 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 9335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9336] <... clone resumed>, parent_tid=[9337], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9337 [pid 9335] <... openat resumed>) = 3 [pid 9336] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9335] write(3, "1000", 4 [pid 9332] <... write resumed>) = 4194304 [pid 9336] <... futex resumed>) = 0 [pid 9335] <... write resumed>) = 4 [pid 9336] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9335] close(3) = 0 [pid 9332] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9337 attached [pid 9335] symlink("/dev/binderfs", "./binderfs" [pid 9334] <... write resumed>) = 4194304 [pid 9337] set_robust_list(0x7f38e1b989e0, 24 [pid 9334] munmap(0x7f38d9778000, 4194304 [pid 9335] <... symlink resumed>) = 0 [pid 9332] <... munmap resumed>) = 0 [pid 9335] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9332] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9337] <... set_robust_list resumed>) = 0 [pid 9335] <... futex resumed>) = 0 [pid 9334] <... munmap resumed>) = 0 [pid 9332] <... openat resumed>) = 4 [pid 9335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9332] ioctl(4, LOOP_SET_FD, 3 [pid 9337] memfd_create("syzkaller", 0 [pid 9335] <... mmap resumed>) = 0x7f38e1b78000 [pid 9334] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9337] <... memfd_create resumed>) = 3 [pid 9334] <... openat resumed>) = 4 [pid 9337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9334] ioctl(4, LOOP_SET_FD, 3 [pid 9337] <... mmap resumed>) = 0x7f38d9778000 [pid 9335] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9335] 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=[9338], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9338 [pid 9335] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9335] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9338 attached [pid 9338] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9338] memfd_create("syzkaller", 0) = 3 [pid 9338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9332] <... ioctl resumed>) = 0 [pid 9332] close(3) = 0 [pid 9332] mkdir("./file0", 0777) = 0 [pid 9332] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9334] <... ioctl resumed>) = 0 [pid 9334] close(3) = 0 [pid 9334] mkdir("./file0", 0777 [pid 9337] 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 9334] <... mkdir resumed>) = 0 [ 252.250480][ T9332] loop1: detected capacity change from 0 to 8192 [ 252.253041][ T9334] loop5: detected capacity change from 0 to 8192 [ 252.272116][ T9332] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 252.286456][ T9332] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9334] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9338] 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 9337] <... write resumed>) = 4194304 [ 252.296707][ T9332] REISERFS (device loop1): using ordered data mode [ 252.303737][ T9334] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 252.303957][ T9332] reiserfs: using flush barriers [ 252.324505][ T9332] 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 [ 252.333130][ T9334] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 9337] munmap(0x7f38d9778000, 4194304) = 0 [pid 9338] <... write resumed>) = 4194304 [ 252.341638][ T9332] REISERFS (device loop1): checking transaction log (loop1) [ 252.358224][ T9334] REISERFS (device loop5): using ordered data mode [ 252.365255][ T9332] REISERFS (device loop1): Using r5 hash to sort names [ 252.371751][ T9334] reiserfs: using flush barriers [ 252.373461][ T9332] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9337] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9338] munmap(0x7f38d9778000, 4194304 [pid 9337] <... openat resumed>) = 4 [pid 9338] <... munmap resumed>) = 0 [pid 9337] ioctl(4, LOOP_SET_FD, 3 [pid 9332] <... mount resumed>) = 0 [pid 9332] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9332] chdir("./file0") = 0 [pid 9332] ioctl(4, LOOP_CLR_FD) = 0 [pid 9332] close(4 [pid 9338] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9332] <... close resumed>) = 0 [pid 9332] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9331] <... futex resumed>) = 0 [pid 9331] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9331] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9332] <... futex resumed>) = 1 [pid 9332] mkdir("./file1", 000) = 0 [pid 9332] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9331] <... futex resumed>) = 0 [pid 9331] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9331] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9332] <... futex resumed>) = 1 [pid 9332] mkdir("./bus", 000) = 0 [pid 9332] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9331] <... futex resumed>) = 0 [pid 9331] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9331] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9332] <... futex resumed>) = 1 [pid 9332] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9338] <... openat resumed>) = 4 [pid 9337] <... ioctl resumed>) = 0 [ 252.378383][ T9334] 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 [ 252.390926][ T9332] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 252.408323][ T9334] REISERFS (device loop5): checking transaction log (loop5) [ 252.422928][ T9337] loop0: detected capacity change from 0 to 8192 [ 252.429947][ T9332] overlayfs: upper fs needs to support d_type. [pid 9338] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9337] close(3 [pid 9338] close(3 [pid 9337] <... close resumed>) = 0 [pid 9331] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9331] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9331] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9331] 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=[9341], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9341 [pid 9331] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9331] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9341 attached [pid 9341] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9341] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9341] 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 9341] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9341] chdir(".") = 0 [pid 9341] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9331] <... futex resumed>) = 0 [pid 9341] <... futex resumed>) = 1 [pid 9341] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9338] <... close resumed>) = 0 [pid 9337] mkdir("./file0", 0777 [pid 9334] <... mount resumed>) = 0 [pid 9334] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9334] chdir("./file0") = 0 [pid 9334] ioctl(4, LOOP_CLR_FD) = 0 [pid 9334] close(4 [pid 9338] mkdir("./file0", 0777 [pid 9337] <... mkdir resumed>) = 0 [pid 9338] <... mkdir resumed>) = 0 [pid 9338] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9337] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9334] <... close resumed>) = 0 [pid 9334] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9334] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9333] <... futex resumed>) = 0 [pid 9333] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9334] <... futex resumed>) = 0 [pid 9334] mkdir("./file1", 000 [pid 9333] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9334] <... mkdir resumed>) = 0 [pid 9334] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9334] <... futex resumed>) = 0 [pid 9334] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9333] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9334] <... futex resumed>) = 0 [pid 9334] mkdir("./bus", 000 [pid 9333] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9334] <... mkdir resumed>) = 0 [pid 9334] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9333] <... futex resumed>) = 0 [pid 9333] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9333] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9334] <... futex resumed>) = 1 [ 252.446323][ T9338] loop2: detected capacity change from 0 to 8192 [ 252.446682][ T9334] REISERFS (device loop5): Using r5 hash to sort names [ 252.453303][ T9332] overlayfs: upper fs does not support tmpfile. [ 252.461051][ T9334] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 252.467150][ T9332] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 252.485322][ T9334] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 252.487221][ T9332] overlayfs: failed to resolve './file0': -2 [pid 9334] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9332] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9332] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9332] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9331] exit_group(0) = ? [pid 9341] <... futex resumed>) = ? [pid 9332] <... futex resumed>) = ? [ 252.519362][ T9338] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 252.525801][ T9334] overlayfs: upper fs needs to support d_type. [ 252.533075][ T9337] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 252.538941][ T9334] overlayfs: upper fs does not support tmpfile. [ 252.559637][ T9338] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9341] +++ exited with 0 +++ [pid 9332] +++ exited with 0 +++ [pid 9331] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9331, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 4999] umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./246", 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("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./246/binderfs") = 0 [pid 4999] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9333] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9333] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9333] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9333] 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=[9344], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9344 [pid 9333] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9333] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9334] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 9344 attached [pid 9344] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9344] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9344] 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, "" [ 252.561235][ T9334] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 252.573101][ T9337] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 252.577489][ T9334] overlayfs: failed to resolve './file0': -2 [ 252.587072][ T9337] REISERFS (device loop0): using ordered data mode [ 252.592347][ T9338] REISERFS (device loop2): using ordered data mode [ 252.604905][ T9338] reiserfs: using flush barriers [ 252.611311][ T9337] reiserfs: using flush barriers [pid 9334] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9334] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9344] <... mount resumed>) = 0 [pid 9344] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9344] chdir(".") = 0 [pid 9344] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9333] <... futex resumed>) = 0 [pid 9333] exit_group(0) = ? [pid 9344] <... futex resumed>) = ? [pid 9344] +++ exited with 0 +++ [pid 9334] <... futex resumed>) = ? [pid 9334] +++ exited with 0 +++ [pid 9333] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9333, si_uid=0, si_status=0, si_utime=0, si_stime=30 /* 0.30 s */} --- [pid 5003] umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 252.616399][ T9338] 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 [ 252.633803][ T9337] 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 [ 252.650210][ T9338] REISERFS (device loop2): checking transaction log (loop2) [ 252.659597][ T9337] REISERFS (device loop0): checking transaction log (loop0) [pid 5003] openat(AT_FDCWD, "./246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./246/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./246/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("./246/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./246") = 0 [pid 4999] mkdir("./247", 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) [ 252.668413][ T9338] REISERFS (device loop2): Using r5 hash to sort names [ 252.675588][ T9338] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 252.688812][ T9338] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 252.698016][ T9337] REISERFS (device loop0): Using r5 hash to sort names [ 252.705028][ T9337] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 4999] close(3 [pid 9338] <... mount resumed>) = 0 [pid 5003] getdents64(3, [pid 9338] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9337] <... mount resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... close resumed>) = 0 [pid 9338] <... openat resumed>) = 3 [pid 9337] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5003] umount2("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9338] chdir("./file0" [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9338] <... chdir resumed>) = 0 [pid 5003] lstat("./246/binderfs", [pid 9338] ioctl(4, LOOP_CLR_FD [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9338] <... ioctl resumed>) = 0 [pid 5003] unlink("./246/binderfs" [pid 9338] close(4 [pid 5003] <... unlink resumed>) = 0 [pid 9338] <... close resumed>) = 0 [pid 5003] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9338] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9337] <... openat resumed>) = 3 [pid 9335] <... futex resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9338] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9335] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9335] <... futex resumed>) = 0 [pid 9338] mkdir("./file1", 000 [pid 9335] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9338] <... mkdir resumed>) = 0 [pid 9338] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9335] <... futex resumed>) = 0 [pid 9338] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9335] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9337] chdir("./file0" [pid 9335] <... futex resumed>) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9345 [pid 9338] mkdir("./bus", 000 [pid 9335] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9338] <... mkdir resumed>) = 0 [pid 9338] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9337] <... chdir resumed>) = 0 [pid 9338] <... futex resumed>) = 1 [pid 9335] <... futex resumed>) = 0 [pid 9338] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9335] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9337] ioctl(4, LOOP_CLR_FD [pid 9335] <... futex resumed>) = 0 [pid 9338] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9335] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9345 attached [pid 9345] set_robust_list(0x555556b565e0, 24) = 0 [pid 9345] chdir("./247") = 0 [pid 9345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9345] setpgid(0, 0) = 0 [pid 9345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9345] write(3, "1000", 4 [pid 9337] <... ioctl resumed>) = 0 [pid 9345] <... write resumed>) = 4 [pid 9337] close(4) = 0 [pid 9337] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9336] <... futex resumed>) = 0 [pid 9337] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9336] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9336] <... futex resumed>) = 0 [pid 9337] mkdir("./file1", 000 [pid 9336] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9345] close(3 [pid 9337] <... mkdir resumed>) = 0 [pid 9337] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9336] <... futex resumed>) = 0 [pid 9337] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9336] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9336] <... futex resumed>) = 0 [pid 9345] <... close resumed>) = 0 [pid 9337] mkdir("./bus", 000 [pid 9336] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9337] <... mkdir resumed>) = 0 [pid 9337] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9336] <... futex resumed>) = 0 [pid 9337] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9336] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9336] <... futex resumed>) = 0 [ 252.718179][ T9337] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 252.746900][ T9338] overlayfs: upper fs needs to support d_type. [ 252.753196][ T9338] overlayfs: upper fs does not support tmpfile. [pid 9345] symlink("/dev/binderfs", "./binderfs" [pid 9337] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9336] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9345] <... symlink resumed>) = 0 [pid 9345] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9335] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9345] <... futex resumed>) = 0 [pid 9335] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9335] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 9345] <... mmap resumed>) = 0x7f38e1b78000 [pid 9335] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9345] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9335] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9345] <... mprotect resumed>) = 0 [pid 9335] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] lstat("./246/file0", [pid 9345] 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 9335] <... mprotect resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9338] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9335] 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("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9345] <... clone resumed>, parent_tid=[9346], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9346 [pid 9338] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9345] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9338] <... futex resumed>) = 0 [pid 9335] <... clone resumed>, parent_tid=[9347], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9347 [pid 5003] openat(AT_FDCWD, "./246/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9345] <... futex resumed>) = 0 [pid 9338] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9335] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... openat resumed>) = 4 [pid 9345] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9335] <... futex resumed>) = 0 [pid 5003] fstat(4, [pid 9335] 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 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("./246/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./246") = 0 [pid 5003] mkdir("./247", 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) [ 252.777741][ T9337] overlayfs: upper fs needs to support d_type. [ 252.784297][ T9337] overlayfs: upper fs does not support tmpfile. [ 252.792247][ T9338] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 252.802798][ T9338] overlayfs: failed to resolve './file0': -2 [ 252.808512][ T9337] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5003] close(3./strace-static-x86_64: Process 9347 attached ./strace-static-x86_64: Process 9346 attached ) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9348 [pid 9347] set_robust_list(0x7f38d9b779e0, 24 [pid 9346] set_robust_list(0x7f38e1b989e0, 24./strace-static-x86_64: Process 9348 attached [pid 9348] set_robust_list(0x555556b565e0, 24) = 0 [pid 9348] chdir("./247") = 0 [pid 9348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9346] <... set_robust_list resumed>) = 0 [pid 9347] <... set_robust_list resumed>) = 0 [pid 9348] <... prctl resumed>) = 0 [pid 9348] setpgid(0, 0) = 0 [pid 9348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9347] mkdir(".", 0777 [pid 9346] memfd_create("syzkaller", 0 [pid 9348] <... openat resumed>) = 3 [pid 9348] write(3, "1000", 4) = 4 [pid 9348] close(3) = 0 [pid 9347] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9346] <... memfd_create resumed>) = 3 [pid 9348] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9347] 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 9346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9348] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9346] <... mmap resumed>) = 0x7f38d9778000 [pid 9348] <... futex resumed>) = 0 [pid 9348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9348] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9348] 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=[9349], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9349 [pid 9348] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9336] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9336] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9348] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9336] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 9349 attached [pid 9349] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9336] <... mprotect resumed>) = 0 [pid 9336] 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=[9350], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9350 [pid 9336] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9336] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9349] memfd_create("syzkaller", 0) = 3 [pid 9349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9350 attached [pid 9350] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9350] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9350] 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 9347] <... mount resumed>) = 0 [pid 9347] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9347] chdir(".") = 0 [pid 9347] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9335] <... futex resumed>) = 0 [pid 9347] <... futex resumed>) = 1 [pid 9335] exit_group(0 [pid 9338] <... futex resumed>) = ? [pid 9335] <... exit_group resumed>) = ? [pid 9338] +++ exited with 0 +++ [pid 9347] +++ exited with 0 +++ [pid 9335] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9335, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5000] umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./247", 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("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./247/binderfs") = 0 [pid 5000] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9350] <... mount resumed>) = 0 [pid 9350] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9350] chdir(".") = 0 [ 252.823555][ T9337] overlayfs: failed to resolve './file0': -2 [pid 9350] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9337] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9336] <... futex resumed>) = 0 [pid 9350] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9337] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9337] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9336] exit_group(0 [pid 9350] <... futex resumed>) = ? [pid 9336] <... exit_group resumed>) = ? [pid 9337] <... futex resumed>) = ? [pid 9350] +++ exited with 0 +++ [pid 9337] +++ exited with 0 +++ [pid 9336] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9336, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./246", 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("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./246/binderfs") = 0 [pid 4998] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9346] 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 9349] 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("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./247/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./247/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("./247/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./247") = 0 [pid 5000] mkdir("./248", 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 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./246/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./246/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... close resumed>) = 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("./246/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./246" [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./247", 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 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9351 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9352 ./strace-static-x86_64: Process 9351 attached [pid 9351] set_robust_list(0x555556b565e0, 24) = 0 [pid 9351] chdir("./248") = 0 [pid 9351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9351] setpgid(0, 0) = 0 [pid 9351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9351] write(3, "1000", 4) = 4 [pid 9351] close(3) = 0 [pid 9351] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9351] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 ./strace-static-x86_64: Process 9352 attached [pid 9352] set_robust_list(0x555556b565e0, 24 [pid 9351] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9352] <... set_robust_list resumed>) = 0 [pid 9351] <... mprotect resumed>) = 0 [pid 9349] <... write resumed>) = 4194304 [pid 9352] chdir("./247" [pid 9351] 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 9352] <... chdir resumed>) = 0 [pid 9352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9351] <... clone resumed>, parent_tid=[9353], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9353 [pid 9352] <... prctl resumed>) = 0 [pid 9351] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9352] setpgid(0, 0 [pid 9351] <... futex resumed>) = 0 [pid 9352] <... setpgid resumed>) = 0 [pid 9351] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9349] munmap(0x7f38d9778000, 4194304 [pid 9352] write(3, "1000", 4 [pid 9349] <... munmap resumed>) = 0 [pid 9352] <... write resumed>) = 4 [pid 9352] close(3) = 0 [pid 9352] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9352] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9352] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9349] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9352] 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 9349] <... openat resumed>) = 4 [pid 9349] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9353 attached [pid 9352] <... clone resumed>, parent_tid=[9354], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9354 [pid 9352] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9353] set_robust_list(0x7f38e1b989e0, 24 [pid 9352] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9354 attached [pid 9354] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9354] memfd_create("syzkaller", 0 [pid 9353] <... set_robust_list resumed>) = 0 [pid 9354] <... memfd_create resumed>) = 3 [pid 9354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9353] memfd_create("syzkaller", 0) = 3 [pid 9353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9349] <... ioctl resumed>) = 0 [pid 9349] close(3) = 0 [pid 9349] mkdir("./file0", 0777) = 0 [pid 9349] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9346] <... write resumed>) = 4194304 [pid 9346] munmap(0x7f38d9778000, 4194304 [ 252.992415][ T9349] loop5: detected capacity change from 0 to 8192 [ 253.022496][ T9349] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9354] 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 9346] <... munmap resumed>) = 0 [pid 9346] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9346] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9346] close(3) = 0 [pid 9346] mkdir("./file0", 0777) = 0 [pid 9346] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 253.037578][ T9349] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 253.048338][ T9346] loop1: detected capacity change from 0 to 8192 [ 253.054743][ T9349] REISERFS (device loop5): using ordered data mode [ 253.061564][ T9349] reiserfs: using flush barriers [ 253.070944][ T9349] 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 9353] 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 9354] <... write resumed>) = 4194304 [pid 9354] munmap(0x7f38d9778000, 4194304) = 0 [pid 9354] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 253.089004][ T9346] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 253.102073][ T9346] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 253.111575][ T9346] REISERFS (device loop1): using ordered data mode [ 253.117068][ T9349] REISERFS (device loop5): checking transaction log (loop5) [ 253.125502][ T9346] reiserfs: using flush barriers [ 253.129012][ T9354] loop0: detected capacity change from 0 to 8192 [pid 9354] ioctl(4, LOOP_SET_FD, 3 [pid 9349] <... mount resumed>) = 0 [pid 9354] <... ioctl resumed>) = 0 [pid 9349] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9354] close(3 [pid 9349] <... openat resumed>) = 3 [pid 9354] <... close resumed>) = 0 [pid 9349] chdir("./file0") = 0 [pid 9354] mkdir("./file0", 0777 [pid 9349] ioctl(4, LOOP_CLR_FD) = 0 [pid 9354] <... mkdir resumed>) = 0 [pid 9349] close(4) = 0 [pid 9354] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9353] <... write resumed>) = 4194304 [pid 9349] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9349] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9353] munmap(0x7f38d9778000, 4194304 [pid 9348] <... futex resumed>) = 0 [pid 9348] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9349] <... futex resumed>) = 0 [pid 9348] <... futex resumed>) = 1 [pid 9349] mkdir("./file1", 000 [pid 9348] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9353] <... munmap resumed>) = 0 [pid 9349] <... mkdir resumed>) = 0 [pid 9349] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 253.137899][ T9349] REISERFS (device loop5): Using r5 hash to sort names [ 253.144966][ T9349] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 253.157690][ T9349] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9349] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9353] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9353] ioctl(4, LOOP_SET_FD, 3 [pid 9348] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9353] <... ioctl resumed>) = 0 [pid 9353] close(3) = 0 [pid 9353] mkdir("./file0", 0777) = 0 [pid 9353] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9349] <... futex resumed>) = 0 [pid 9348] <... futex resumed>) = 1 [pid 9349] mkdir("./bus", 000 [pid 9348] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9349] <... mkdir resumed>) = 0 [pid 9349] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9348] <... futex resumed>) = 0 [pid 9349] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9348] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 253.185152][ T9346] 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 [ 253.193768][ T9353] loop2: detected capacity change from 0 to 8192 [ 253.203434][ T9346] REISERFS (device loop1): checking transaction log (loop1) [ 253.210598][ T9353] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 253.220615][ T9354] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 253.228923][ T9353] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 253.242955][ T9349] overlayfs: upper fs needs to support d_type. [ 253.257256][ T9349] overlayfs: upper fs does not support tmpfile. [ 253.257948][ T9346] REISERFS (device loop1): Using r5 hash to sort names [ 253.264276][ T9349] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 253.274669][ T9353] REISERFS (device loop2): using ordered data mode [pid 9348] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9348] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9348] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9348] 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=[9359], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9359 [pid 9348] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 253.277860][ T9354] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 253.294487][ T9354] REISERFS (device loop0): using ordered data mode [ 253.296700][ T9353] reiserfs: using flush barriers [ 253.301421][ T9354] reiserfs: using flush barriers [ 253.306931][ T9346] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9348] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9359 attached [pid 9359] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9359] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9359] 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 9359] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9359] chdir(".") = 0 [pid 9359] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9348] <... futex resumed>) = 0 [ 253.311749][ T9354] 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 [ 253.340619][ T9354] REISERFS (device loop0): checking transaction log (loop0) [ 253.342423][ T9349] overlayfs: failed to resolve './file0': -2 [ 253.348798][ T9354] REISERFS (device loop0): Using r5 hash to sort names [ 253.359464][ T9353] 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 9359] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9354] <... mount resumed>) = 0 [pid 9354] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9349] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9354] <... openat resumed>) = 3 [pid 9349] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9354] chdir("./file0" [pid 9349] <... futex resumed>) = 0 [pid 9354] <... chdir resumed>) = 0 [pid 9349] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9348] exit_group(0 [pid 9359] <... futex resumed>) = ? [pid 9349] <... futex resumed>) = ? [pid 9359] +++ exited with 0 +++ [pid 9349] +++ exited with 0 +++ [pid 9348] <... exit_group resumed>) = ? [pid 9348] +++ exited with 0 +++ [pid 9346] <... mount resumed>) = 0 [pid 9346] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9346] chdir("./file0") = 0 [pid 9346] ioctl(4, LOOP_CLR_FD) = 0 [ 253.361448][ T9354] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 253.390262][ T9354] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 253.390985][ T9346] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 253.400097][ T9353] REISERFS (device loop2): checking transaction log (loop2) [ 253.418205][ T9353] REISERFS (device loop2): Using r5 hash to sort names [pid 9346] close(4 [pid 9354] ioctl(4, LOOP_CLR_FD) = 0 [pid 9354] close(4 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9348, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 9354] <... close resumed>) = 0 [pid 9346] <... close resumed>) = 0 [pid 9354] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9352] <... futex resumed>) = 0 [pid 5003] umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9354] mkdir("./file1", 000 [pid 9352] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9346] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9346] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9354] <... mkdir resumed>) = 0 [pid 9352] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9345] <... futex resumed>) = 0 [pid 9352] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9345] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9354] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9352] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9345] <... futex resumed>) = 1 [pid 5003] <... openat resumed>) = 3 [pid 9346] <... futex resumed>) = 0 [pid 9346] mkdir("./file1", 000 [pid 9354] <... futex resumed>) = 0 [pid 9353] <... mount resumed>) = 0 [pid 9352] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9345] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] fstat(3, [pid 9354] mkdir("./bus", 000 [pid 9353] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9352] <... futex resumed>) = 0 [pid 9346] <... mkdir resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9354] <... mkdir resumed>) = 0 [pid 9353] <... openat resumed>) = 3 [pid 9352] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] getdents64(3, [pid 9354] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9353] chdir("./file0" [pid 9352] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9346] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9354] <... futex resumed>) = 0 [pid 9353] <... chdir resumed>) = 0 [pid 9352] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9346] <... futex resumed>) = 1 [pid 9345] <... futex resumed>) = 0 [pid 5003] umount2("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9354] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9353] ioctl(4, LOOP_CLR_FD [pid 9352] <... futex resumed>) = 0 [pid 9346] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9345] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9353] <... ioctl resumed>) = 0 [pid 9352] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9345] <... futex resumed>) = 0 [pid 5003] lstat("./247/binderfs", [pid 9353] close(4 [pid 9346] mkdir("./bus", 000 [pid 9345] 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 9353] <... close resumed>) = 0 [ 253.425665][ T9353] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 253.439852][ T9353] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 253.470367][ T9354] overlayfs: upper fs needs to support d_type. [pid 5003] unlink("./247/binderfs" [pid 9353] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... unlink resumed>) = 0 [pid 9353] <... futex resumed>) = 1 [pid 9351] <... futex resumed>) = 0 [pid 5003] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9353] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9351] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9346] <... mkdir resumed>) = 0 [pid 9353] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9346] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9345] <... futex resumed>) = 0 [pid 9346] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9345] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9345] <... futex resumed>) = 0 [pid 9346] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9345] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9353] mkdir("./file1", 000 [pid 9351] <... futex resumed>) = 0 [pid 9354] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9353] <... mkdir resumed>) = 0 [pid 9351] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9354] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 253.480447][ T9354] overlayfs: upper fs does not support tmpfile. [ 253.492622][ T9354] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 253.500842][ T9354] overlayfs: failed to resolve './file0': -2 [ 253.511669][ T9346] overlayfs: upper fs needs to support d_type. [ 253.519119][ T9346] overlayfs: upper fs does not support tmpfile. [pid 9354] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9353] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9352] <... futex resumed>) = 0 [pid 9351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... umount2 resumed>) = 0 [pid 9353] <... futex resumed>) = 0 [pid 9352] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9351] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9351] <... futex resumed>) = 0 [pid 9353] mkdir("./bus", 000 [pid 9352] <... futex resumed>) = 1 [pid 5003] lstat("./247/file0", [pid 9351] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9354] <... futex resumed>) = 0 [pid 9352] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9353] <... mkdir resumed>) = 0 [pid 9354] mkdir(".", 0777 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9353] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9354] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9353] <... futex resumed>) = 1 [pid 9351] <... futex resumed>) = 0 [pid 5003] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9354] 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 9353] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9351] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9351] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./247/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9351] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... openat resumed>) = 4 [pid 5003] fstat(4, [pid 9345] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9345] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9345] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9345] 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=[9360], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9360 [pid 9345] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9360 attached [pid 9360] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9360] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9360] 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 9354] <... mount resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9354] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5003] getdents64(4, [pid 9354] <... openat resumed>) = 4 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, [pid 9354] chdir(".") = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9354] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9354] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9352] <... futex resumed>) = 0 [pid 5003] close(4 [pid 9352] exit_group(0 [pid 5003] <... close resumed>) = 0 [pid 9354] <... futex resumed>) = ? [pid 9352] <... exit_group resumed>) = ? [pid 5003] rmdir("./247/file0" [pid 9354] +++ exited with 0 +++ [pid 5003] <... rmdir resumed>) = 0 [pid 9352] +++ exited with 0 +++ [pid 5003] getdents64(3, [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9352, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... restart_syscall resumed>) = 0 [pid 5003] close(3 [pid 4998] umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 253.535693][ T9346] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 253.548113][ T9353] overlayfs: upper fs needs to support d_type. [ 253.552378][ T9346] overlayfs: failed to resolve './file0': -2 [ 253.554950][ T9353] overlayfs: upper fs does not support tmpfile. [ 253.570740][ T9353] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 4998] openat(AT_FDCWD, "./247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] rmdir("./247" [pid 4998] <... openat resumed>) = 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("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./247/binderfs") = 0 [pid 4998] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9360] <... mount resumed>) = 0 [pid 9360] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9360] chdir(".") = 0 [pid 9360] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9345] <... futex resumed>) = 0 [pid 9360] <... futex resumed>) = 1 [pid 9360] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./248", 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) = 9361 ./strace-static-x86_64: Process 9361 attached [pid 9361] set_robust_list(0x555556b565e0, 24) = 0 [pid 9361] chdir("./248") = 0 [pid 9361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9361] setpgid(0, 0) = 0 [pid 9361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9361] write(3, "1000", 4) = 4 [pid 9361] close(3) = 0 [pid 9361] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9361] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9361] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9361] 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=[9362], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9362 [pid 9361] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9361] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9362 attached [pid 9362] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9362] memfd_create("syzkaller", 0) = 3 [pid 9362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9351] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9351] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9351] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9351] 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=[9363], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9363 [pid 9351] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9351] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9353] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9353] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9353] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9346] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9346] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9345] exit_group(0) = ? [pid 9360] <... futex resumed>) = ? [pid 9360] +++ exited with 0 +++ ./strace-static-x86_64: Process 9363 attached [pid 9346] +++ exited with 0 +++ [pid 9345] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9345, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./247", 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("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 253.584444][ T9353] overlayfs: failed to resolve './file0': -2 [pid 4999] lstat("./247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./247/binderfs") = 0 [pid 4999] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9363] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9363] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9363] 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 9362] 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 9363] <... mount resumed>) = 0 [pid 9363] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9363] chdir(".") = 0 [pid 9363] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9351] <... futex resumed>) = 0 [pid 9351] exit_group(0 [pid 9363] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 9353] <... futex resumed>) = ? [pid 9351] <... exit_group resumed>) = ? [pid 9353] +++ exited with 0 +++ [pid 9363] +++ exited with 0 +++ [pid 9351] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9351, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./248", 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("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./248/binderfs") = 0 [pid 5000] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./247/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./247/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("./247/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./247") = 0 [pid 4998] mkdir("./248", 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) = 9364 ./strace-static-x86_64: Process 9364 attached [pid 9364] set_robust_list(0x555556b565e0, 24) = 0 [pid 9364] chdir("./248") = 0 [pid 9364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9364] setpgid(0, 0) = 0 [pid 9364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9364] write(3, "1000", 4) = 4 [pid 9364] close(3) = 0 [pid 9364] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9364] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9362] <... write resumed>) = 4194304 [pid 9362] munmap(0x7f38d9778000, 4194304 [pid 9364] <... futex resumed>) = 0 [pid 9364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9364] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9364] 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=[9365], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9365 [pid 9364] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9365 attached ) = 0 [pid 9362] <... munmap resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9365] set_robust_list(0x7f38e1b989e0, 24 [pid 9364] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9362] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./247/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9365] <... set_robust_list resumed>) = 0 [pid 4999] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./247/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9365] memfd_create("syzkaller", 0 [pid 4999] getdents64(4, [pid 9362] <... openat resumed>) = 4 [pid 9365] <... memfd_create resumed>) = 3 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./248/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./248/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./247/file0" [pid 5000] <... fstat resumed>{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 4999] <... rmdir resumed>) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./248/file0" [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] close(3 [pid 9365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9362] ioctl(4, LOOP_SET_FD, 3 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./247" [pid 9365] <... mmap resumed>) = 0x7f38d9778000 [pid 9362] <... ioctl resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] <... rmdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] mkdir("./248", 0777 [pid 5000] close(3 [pid 4999] <... mkdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] rmdir("./248" [pid 4999] <... openat resumed>) = 3 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] mkdir("./249", 0777 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] <... mkdir resumed>) = 0 [pid 4999] close(3 [pid 9362] close(3 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... close resumed>) = 0 [pid 9362] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9362] mkdir("./file0", 0777 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9362] <... mkdir resumed>) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9366 [pid 9362] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9368 ./strace-static-x86_64: Process 9368 attached [pid 9365] 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 9368] set_robust_list(0x555556b565e0, 24) = 0 [pid 9368] chdir("./249") = 0 [pid 9368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9368] setpgid(0, 0) = 0 [pid 9368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9368] write(3, "1000", 4) = 4 [pid 9368] close(3) = 0 [pid 9368] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9368] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9368] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9368] 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=[9369], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9369 [pid 9368] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9368] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9369 attached [pid 9369] set_robust_list(0x7f38e1b989e0, 24./strace-static-x86_64: Process 9366 attached [ 253.778595][ T9362] loop5: detected capacity change from 0 to 8192 ) = 0 [pid 9365] <... write resumed>) = 4194304 [pid 9366] set_robust_list(0x555556b565e0, 24) = 0 [pid 9366] chdir("./248") = 0 [pid 9366] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9366] setpgid(0, 0) = 0 [pid 9366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9366] write(3, "1000", 4) = 4 [pid 9366] close(3) = 0 [pid 9366] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9366] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9366] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9366] 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=[9370], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9370 [pid 9366] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9366] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9365] munmap(0x7f38d9778000, 4194304 [pid 9369] memfd_create("syzkaller", 0 [pid 9365] <... munmap resumed>) = 0 [pid 9369] <... memfd_create resumed>) = 3 [pid 9369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9365] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9370 attached ) = 0 [pid 9365] close(3) = 0 [pid 9365] mkdir("./file0", 0777 [pid 9370] set_robust_list(0x7f38e1b989e0, 24 [pid 9365] <... mkdir resumed>) = 0 [pid 9370] <... set_robust_list resumed>) = 0 [pid 9365] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9370] memfd_create("syzkaller", 0) = 3 [pid 9370] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 253.827323][ T9362] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 253.843373][ T9362] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 253.853225][ T9365] loop0: detected capacity change from 0 to 8192 [ 253.853443][ T9362] REISERFS (device loop5): using ordered data mode [ 253.868769][ T9362] reiserfs: using flush barriers [pid 9369] 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 9370] 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 9369] <... write resumed>) = 4194304 [ 253.874738][ T9362] 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 [ 253.891711][ T9365] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 253.905112][ T9365] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 253.913256][ T9362] REISERFS (device loop5): checking transaction log (loop5) [pid 9369] munmap(0x7f38d9778000, 4194304) = 0 [pid 9369] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9370] <... write resumed>) = 4194304 [pid 9369] ioctl(4, LOOP_SET_FD, 3 [pid 9370] munmap(0x7f38d9778000, 4194304) = 0 [pid 9370] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9370] ioctl(4, LOOP_SET_FD, 3 [pid 9369] <... ioctl resumed>) = 0 [pid 9370] <... ioctl resumed>) = 0 [pid 9370] close(3) = 0 [pid 9370] mkdir("./file0", 0777) = 0 [pid 9370] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9369] close(3) = 0 [pid 9369] mkdir("./file0", 0777) = 0 [ 253.914761][ T9365] REISERFS (device loop0): using ordered data mode [ 253.928894][ T9365] reiserfs: using flush barriers [ 253.935673][ T9365] 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 [ 253.949777][ T9369] loop2: detected capacity change from 0 to 8192 [ 253.954488][ T9370] loop1: detected capacity change from 0 to 8192 [ 253.959388][ T9365] REISERFS (device loop0): checking transaction log (loop0) [ 253.970022][ T9362] REISERFS (device loop5): Using r5 hash to sort names [ 253.973864][ T9365] REISERFS (device loop0): Using r5 hash to sort names [ 253.986658][ T9365] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 253.987118][ T9369] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 254.001384][ T9365] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9369] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9365] <... mount resumed>) = 0 [ 254.015128][ T9370] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 254.023737][ T9362] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 254.049047][ T9370] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 254.049121][ T9370] REISERFS (device loop1): using ordered data mode [ 254.058411][ T9362] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9365] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9362] <... mount resumed>) = 0 [pid 9365] chdir("./file0") = 0 [pid 9365] ioctl(4, LOOP_CLR_FD) = 0 [pid 9365] close(4) = 0 [pid 9362] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9365] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9364] <... futex resumed>) = 0 [pid 9365] mkdir("./file1", 000 [pid 9364] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9365] <... mkdir resumed>) = 0 [pid 9364] <... futex resumed>) = 0 [pid 9365] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9364] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9365] <... futex resumed>) = 0 [pid 9364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9365] mkdir("./bus", 000 [pid 9364] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9365] <... mkdir resumed>) = 0 [pid 9364] <... futex resumed>) = 0 [pid 9365] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9364] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9365] <... futex resumed>) = 0 [pid 9364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9365] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9364] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9362] <... openat resumed>) = 3 [pid 9364] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9362] chdir("./file0") = 0 [ 254.065336][ T9369] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 254.074271][ T9370] reiserfs: using flush barriers [ 254.089709][ T9370] 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 [ 254.102508][ T9365] overlayfs: upper fs needs to support d_type. [ 254.106856][ T9370] REISERFS (device loop1): checking transaction log (loop1) [ 254.121162][ T9369] REISERFS (device loop2): using ordered data mode [pid 9362] ioctl(4, LOOP_CLR_FD) = 0 [pid 9364] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9364] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9364] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9362] close(4 [pid 9364] 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 9362] <... close resumed>) = 0 [pid 9362] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9364] <... clone resumed>, parent_tid=[9374], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9374 [pid 9362] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9370] <... mount resumed>) = 0 [pid 9361] <... futex resumed>) = 0 [pid 9364] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9361] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 254.128368][ T9370] REISERFS (device loop1): Using r5 hash to sort names [ 254.134881][ T9365] overlayfs: upper fs does not support tmpfile. [ 254.135452][ T9370] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 254.143069][ T9365] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 254.154646][ T9369] reiserfs: using flush barriers [ 254.168194][ T9370] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9361] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9364] <... futex resumed>) = 0 [pid 9364] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9370] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9362] <... futex resumed>) = 0 [pid 9370] <... openat resumed>) = 3 [pid 9362] mkdir("./file1", 000 [pid 9370] chdir("./file0"./strace-static-x86_64: Process 9374 attached ) = 0 [pid 9362] <... mkdir resumed>) = 0 [pid 9374] set_robust_list(0x7f38d9b779e0, 24 [pid 9370] ioctl(4, LOOP_CLR_FD [pid 9362] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9374] <... set_robust_list resumed>) = 0 [pid 9370] <... ioctl resumed>) = 0 [pid 9362] <... futex resumed>) = 1 [pid 9374] mkdir(".", 0777 [pid 9370] close(4 [pid 9362] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9374] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9370] <... close resumed>) = 0 [pid 9365] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9361] <... futex resumed>) = 0 [pid 9374] 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 9370] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9370] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9365] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9361] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9366] <... futex resumed>) = 0 [pid 9365] <... futex resumed>) = 0 [pid 9366] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9362] <... futex resumed>) = 0 [pid 9361] <... futex resumed>) = 1 [pid 9370] <... futex resumed>) = 0 [pid 9366] <... futex resumed>) = 1 [pid 9365] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9362] mkdir("./bus", 000 [pid 9361] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9374] <... mount resumed>) = 0 [pid 9370] mkdir("./file1", 000 [pid 9366] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9362] <... mkdir resumed>) = 0 [pid 9362] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9362] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9361] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9362] <... futex resumed>) = 0 [pid 9361] <... futex resumed>) = 1 [ 254.178969][ T9365] overlayfs: failed to resolve './file0': -2 [ 254.189884][ T9369] 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 [ 254.207298][ T9369] REISERFS (device loop2): checking transaction log (loop2) [ 254.220194][ T9369] REISERFS (device loop2): Using r5 hash to sort names [pid 9362] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9361] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9374] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9370] <... mkdir resumed>) = 0 [pid 9374] <... openat resumed>) = 4 [pid 9370] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9369] <... mount resumed>) = 0 [pid 9374] chdir("." [pid 9370] <... futex resumed>) = 1 [pid 9366] <... futex resumed>) = 0 [pid 9374] <... chdir resumed>) = 0 [pid 9370] mkdir("./bus", 000 [pid 9366] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9374] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9370] <... mkdir resumed>) = 0 [pid 9366] <... futex resumed>) = 0 [pid 9374] <... futex resumed>) = 1 [pid 9370] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9366] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9364] <... futex resumed>) = 0 [pid 9374] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9370] <... futex resumed>) = 0 [pid 9366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9364] exit_group(0 [pid 9374] <... futex resumed>) = ? [pid 9370] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9366] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9365] <... futex resumed>) = ? [pid 9364] <... exit_group resumed>) = ? [pid 9374] +++ exited with 0 +++ [pid 9366] <... futex resumed>) = 0 [pid 9365] +++ exited with 0 +++ [pid 9364] +++ exited with 0 +++ [pid 9366] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9364, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9369] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9369] chdir("./file0") = 0 [pid 9369] ioctl(4, LOOP_CLR_FD) = 0 [pid 9369] close(4 [pid 4998] umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./248", 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("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./248/binderfs") = 0 [pid 4998] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9369] <... close resumed>) = 0 [pid 9369] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 254.227898][ T9369] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 254.228078][ T9362] overlayfs: upper fs needs to support d_type. [ 254.240747][ T9369] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 254.248967][ T9362] overlayfs: upper fs does not support tmpfile. [ 254.262598][ T9370] overlayfs: upper fs needs to support d_type. [ 254.263760][ T9362] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9369] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9368] <... futex resumed>) = 0 [pid 9368] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9369] <... futex resumed>) = 0 [pid 9369] mkdir("./file1", 000) = 0 [pid 9369] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9369] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9368] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9368] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9369] <... futex resumed>) = 0 [pid 9368] <... futex resumed>) = 1 [pid 9368] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9369] mkdir("./bus", 000) = 0 [pid 9369] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9369] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9368] <... futex resumed>) = 0 [pid 9368] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9369] <... futex resumed>) = 0 [pid 9368] <... futex resumed>) = 1 [pid 9369] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9368] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9361] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9361] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9366] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9366] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9366] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9366] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9366] 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=[9375], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9375 [pid 9361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9366] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9366] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9361] <... mmap resumed>) = 0x7f38d9b57000 [pid 9361] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 9375 attached ) = 0 [pid 9361] 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 9375] set_robust_list(0x7f38d9b779e0, 24 [pid 9362] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9361] <... clone resumed>, parent_tid=[9376], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9376 [pid 9361] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9375] <... set_robust_list resumed>) = 0 [pid 9362] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9361] <... futex resumed>) = 0 [pid 9362] <... futex resumed>) = 0 [pid 9361] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9375] mkdir(".", 0777 [pid 9362] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9375] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9375] 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 9375] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 9376 attached [pid 9376] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9375] <... openat resumed>) = 4 [pid 9376] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9376] 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 9368] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9375] chdir("." [pid 9368] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9375] <... chdir resumed>) = 0 [pid 9368] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9375] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9368] 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 9366] <... futex resumed>) = 0 [pid 9375] <... futex resumed>) = 1 [pid 9375] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9368] <... clone resumed>, parent_tid=[9377], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9377 [pid 9368] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 254.275718][ T9370] overlayfs: upper fs does not support tmpfile. [ 254.296195][ T9369] overlayfs: upper fs needs to support d_type. [ 254.302425][ T9369] overlayfs: upper fs does not support tmpfile. [ 254.310136][ T9362] overlayfs: failed to resolve './file0': -2 [ 254.313620][ T9370] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9368] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9376] <... mount resumed>) = 0 [pid 9376] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 9377 attached [pid 9377] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9376] chdir("." [pid 9377] mkdir(".", 0777 [pid 9376] <... chdir resumed>) = 0 [pid 9377] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9376] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9377] 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 9376] <... futex resumed>) = 1 [pid 9361] <... futex resumed>) = 0 [pid 9376] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9361] exit_group(0 [pid 9376] <... futex resumed>) = ? [pid 9362] <... futex resumed>) = ? [pid 9361] <... exit_group resumed>) = ? [pid 9376] +++ exited with 0 +++ [pid 9362] +++ exited with 0 +++ [pid 9361] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9361, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./248", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9377] <... mount resumed>) = 0 [pid 5003] fstat(3, [pid 9377] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9377] <... openat resumed>) = 4 [pid 5003] getdents64(3, [pid 9377] chdir("." [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9377] <... chdir resumed>) = 0 [pid 5003] umount2("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9377] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9377] <... futex resumed>) = 1 [pid 5003] lstat("./248/binderfs", [pid 9377] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./248/binderfs") = 0 [pid 5003] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9368] <... futex resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./248/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./248/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9369] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./248/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./248/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9369] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9369] <... futex resumed>) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, [pid 9369] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 9368] exit_group(0 [pid 5003] <... close resumed>) = 0 [pid 9377] <... futex resumed>) = ? [pid 9369] <... futex resumed>) = ? [pid 9368] <... exit_group resumed>) = ? [pid 5003] rmdir("./248/file0" [pid 9377] +++ exited with 0 +++ [pid 5003] <... rmdir resumed>) = 0 [pid 4998] fstat(4, [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] close(3 [pid 9369] +++ exited with 0 +++ [pid 9368] +++ exited with 0 +++ [pid 5003] <... close resumed>) = 0 [pid 4998] getdents64(4, [pid 5003] rmdir("./248" [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9368, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5003] <... rmdir resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] mkdir("./249", 0777 [pid 5000] <... restart_syscall resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 4998] getdents64(4, [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] openat(AT_FDCWD, "./249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] close(4 [pid 5003] close(3 [pid 5000] <... openat resumed>) = 3 [pid 5003] <... close resumed>) = 0 [pid 5000] fstat(3, [pid 4998] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] rmdir("./248/file0" [pid 5000] getdents64(3, [pid 4998] <... rmdir resumed>) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9378 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] getdents64(3, [pid 5000] umount2("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] close(3 [pid 5000] lstat("./249/binderfs", [pid 4998] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] rmdir("./248" [pid 9370] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] unlink("./249/binderfs" [pid 4998] <... rmdir resumed>) = 0 [pid 9370] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... unlink resumed>) = 0 [pid 4998] mkdir("./249", 0777 [pid 9370] <... futex resumed>) = 0 [pid 5000] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... mkdir resumed>) = 0 [pid 9370] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9366] exit_group(0 [ 254.349373][ T9369] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 254.370428][ T9370] overlayfs: failed to resolve './file0': -2 [ 254.372802][ T9369] overlayfs: failed to resolve './file0': -2 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9375] <... futex resumed>) = ? [pid 9370] <... futex resumed>) = ? [pid 9366] <... exit_group resumed>) = ? [pid 4998] <... openat resumed>) = 3 [pid 9375] +++ exited with 0 +++ [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3./strace-static-x86_64: Process 9378 attached [pid 9370] +++ exited with 0 +++ [pid 9366] +++ exited with 0 +++ [pid 9378] set_robust_list(0x555556b565e0, 24) = 0 [pid 9378] chdir("./249") = 0 [pid 9378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9378] setpgid(0, 0) = 0 [pid 9378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9378] write(3, "1000", 4) = 4 [pid 9378] close(3) = 0 [pid 9378] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9378] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9378] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9378] 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=[9379], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9379 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9366, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 9378] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9378] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9379 attached [pid 9379] set_robust_list(0x7f38e1b989e0, 24 [pid 4999] umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9379] <... set_robust_list resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9379] memfd_create("syzkaller", 0 [pid 4999] openat(AT_FDCWD, "./248", 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 4998] <... close resumed>) = 0 [pid 4999] umount2("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./248/binderfs" [pid 9379] <... memfd_create resumed>) = 3 [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9380 [pid 9379] <... mmap resumed>) = 0x7f38d9778000 ./strace-static-x86_64: Process 9380 attached [pid 9380] set_robust_list(0x555556b565e0, 24) = 0 [pid 9380] chdir("./249") = 0 [pid 9380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9380] setpgid(0, 0) = 0 [pid 9380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9380] write(3, "1000", 4) = 4 [pid 9380] close(3) = 0 [pid 9380] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9380] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9380] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9380] 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=[9381], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9381 [pid 9380] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9381 attached [pid 5000] <... umount2 resumed>) = 0 [pid 9381] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 5000] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9381] memfd_create("syzkaller", 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9381] <... memfd_create resumed>) = 3 [pid 5000] lstat("./249/file0", [pid 9381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./249/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("./249/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./249") = 0 [pid 5000] mkdir("./250", 0777 [pid 9379] 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] <... mkdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] lstat("./248/file0", [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./248/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9382 [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, ./strace-static-x86_64: Process 9382 attached [pid 9381] 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] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9382] set_robust_list(0x555556b565e0, 24 [pid 4999] getdents64(4, [pid 9382] <... set_robust_list resumed>) = 0 [pid 9382] chdir("./250" [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9382] <... chdir resumed>) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] close(4 [pid 9382] <... prctl resumed>) = 0 [pid 9382] setpgid(0, 0 [pid 4999] <... close resumed>) = 0 [pid 9382] <... setpgid resumed>) = 0 [pid 4999] rmdir("./248/file0" [pid 9382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, [pid 9382] <... openat resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9382] write(3, "1000", 4 [pid 4999] close(3 [pid 9382] <... write resumed>) = 4 [pid 4999] <... close resumed>) = 0 [pid 9382] close(3 [pid 4999] rmdir("./248" [pid 9382] <... close resumed>) = 0 [pid 9382] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... rmdir resumed>) = 0 [pid 9382] <... symlink resumed>) = 0 [pid 4999] mkdir("./249", 0777 [pid 9382] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... mkdir resumed>) = 0 [pid 9382] <... futex resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] <... openat resumed>) = 3 [pid 9382] <... mmap resumed>) = 0x7f38e1b78000 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9382] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9382] <... mprotect resumed>) = 0 [pid 4999] close(3 [pid 9382] 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] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9382] <... clone resumed>, parent_tid=[9383], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9383 ./strace-static-x86_64: Process 9384 attached [pid 9382] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9384] set_robust_list(0x555556b565e0, 24 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9384 [pid 9384] <... set_robust_list resumed>) = 0 [pid 9382] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9384] chdir("./249") = 0 [pid 9384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9384] setpgid(0, 0) = 0 [pid 9384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 9383 attached [pid 9383] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9383] memfd_create("syzkaller", 0) = 3 [pid 9383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9384] <... openat resumed>) = 3 [pid 9384] write(3, "1000", 4) = 4 [pid 9384] close(3) = 0 [pid 9384] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9384] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9384] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9383] <... mmap resumed>) = 0x7f38d9778000 [pid 9384] <... mprotect resumed>) = 0 [pid 9381] <... write resumed>) = 4194304 [pid 9384] 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 9381] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9385 attached [pid 9385] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9385] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9381] <... munmap resumed>) = 0 [pid 9384] <... clone resumed>, parent_tid=[9385], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9385 [pid 9381] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9384] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9385] <... futex resumed>) = 0 [pid 9384] <... futex resumed>) = 1 [pid 9381] <... openat resumed>) = 4 [pid 9384] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9381] ioctl(4, LOOP_SET_FD, 3 [pid 9385] memfd_create("syzkaller", 0) = 3 [pid 9385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9379] <... write resumed>) = 4194304 [pid 9381] <... ioctl resumed>) = 0 [pid 9381] close(3 [pid 9379] munmap(0x7f38d9778000, 4194304 [pid 9381] <... close resumed>) = 0 [pid 9381] mkdir("./file0", 0777) = 0 [pid 9381] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9379] <... munmap resumed>) = 0 [pid 9379] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9379] ioctl(4, LOOP_SET_FD, 3 [pid 9383] 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 9379] <... ioctl resumed>) = 0 [pid 9379] close(3) = 0 [pid 9379] mkdir("./file0", 0777 [pid 9383] <... write resumed>) = 4194304 [pid 9379] <... mkdir resumed>) = 0 [pid 9383] munmap(0x7f38d9778000, 4194304 [pid 9379] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9383] <... munmap resumed>) = 0 [pid 9383] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9385] 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 9383] <... openat resumed>) = 4 [ 254.589621][ T9381] loop0: detected capacity change from 0 to 8192 [ 254.608379][ T9379] loop5: detected capacity change from 0 to 8192 [ 254.615942][ T9381] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9383] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9383] close(3) = 0 [pid 9383] mkdir("./file0", 0777) = 0 [ 254.643834][ T9379] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 254.644294][ T9383] loop2: detected capacity change from 0 to 8192 [ 254.663691][ T9381] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 254.667881][ T9379] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 254.682547][ T9381] REISERFS (device loop0): using ordered data mode [pid 9383] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9385] <... write resumed>) = 4194304 [ 254.682724][ T9379] REISERFS (device loop5): using ordered data mode [ 254.695136][ T9381] reiserfs: using flush barriers [ 254.696018][ T9383] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 254.701565][ T9381] 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 [ 254.714094][ T9379] reiserfs: using flush barriers [ 254.730402][ T9381] REISERFS (device loop0): checking transaction log (loop0) [pid 9385] munmap(0x7f38d9778000, 4194304) = 0 [pid 9385] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 254.735353][ T9383] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 254.752737][ T9381] REISERFS (device loop0): Using r5 hash to sort names [ 254.753956][ T9383] REISERFS (device loop2): using ordered data mode [ 254.759968][ T9385] loop1: detected capacity change from 0 to 8192 [ 254.766319][ T9383] reiserfs: using flush barriers [ 254.773402][ T9379] 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 9385] ioctl(4, LOOP_SET_FD, 3) = 0 [ 254.778861][ T9381] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 254.794691][ T9379] REISERFS (device loop5): checking transaction log (loop5) [ 254.807091][ T9383] 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 [ 254.815414][ T9379] REISERFS (device loop5): Using r5 hash to sort names [pid 9385] close(3) = 0 [pid 9385] mkdir("./file0", 0777) = 0 [pid 9385] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9381] <... mount resumed>) = 0 [pid 9381] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9381] chdir("./file0") = 0 [pid 9381] ioctl(4, LOOP_CLR_FD) = 0 [pid 9381] close(4) = 0 [pid 9381] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9380] <... futex resumed>) = 0 [pid 9380] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9381] <... futex resumed>) = 1 [pid 9381] mkdir("./file1", 000) = 0 [pid 9381] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9380] <... futex resumed>) = 0 [pid 9380] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9381] <... futex resumed>) = 1 [pid 9381] mkdir("./bus", 000) = 0 [pid 9381] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9380] <... futex resumed>) = 0 [pid 9380] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9381] <... futex resumed>) = 1 [ 254.831488][ T9381] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 254.838210][ T9379] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 254.848606][ T9383] REISERFS (device loop2): checking transaction log (loop2) [ 254.892276][ T9381] overlayfs: upper fs needs to support d_type. [ 254.899173][ T9381] overlayfs: upper fs does not support tmpfile. [ 254.899410][ T9385] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 254.905764][ T9381] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 254.926693][ T9383] REISERFS (device loop2): Using r5 hash to sort names [pid 9381] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9380] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9380] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9380] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9380] 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=[9390], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9390 [pid 9380] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9380] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9390 attached [ 254.933700][ T9385] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 254.936257][ T9381] overlayfs: failed to resolve './file0': -2 [ 254.949229][ T9385] REISERFS (device loop1): using ordered data mode [ 254.954318][ T9379] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 254.964861][ T9385] reiserfs: using flush barriers [ 254.965639][ T9385] 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 9390] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9390] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9390] 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 9379] <... mount resumed>) = 0 [pid 9379] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9379] chdir("./file0") = 0 [pid 9379] ioctl(4, LOOP_CLR_FD) = 0 [pid 9379] close(4 [pid 9390] <... mount resumed>) = 0 [pid 9390] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9390] chdir(".") = 0 [pid 9390] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9380] <... futex resumed>) = 0 [pid 9390] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9379] <... close resumed>) = 0 [pid 9379] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9378] <... futex resumed>) = 0 [pid 9378] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9378] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9381] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9381] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9381] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9380] exit_group(0 [pid 9390] <... futex resumed>) = ? [pid 9381] <... futex resumed>) = ? [pid 9380] <... exit_group resumed>) = ? [pid 9390] +++ exited with 0 +++ [pid 9381] +++ exited with 0 +++ [pid 9380] +++ exited with 0 +++ [pid 9379] <... futex resumed>) = 1 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9380, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4998] umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9379] mkdir("./file1", 000) = 0 [pid 9379] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9378] <... futex resumed>) = 0 [pid 9378] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9378] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9379] <... futex resumed>) = 1 [pid 9379] mkdir("./bus", 000) = 0 [pid 9379] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9378] <... futex resumed>) = 0 [pid 9378] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9379] <... futex resumed>) = 1 [pid 9378] <... futex resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9379] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9378] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] openat(AT_FDCWD, "./249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 254.974128][ T9383] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 255.015567][ T9385] REISERFS (device loop1): checking transaction log (loop1) [ 255.032208][ T9385] REISERFS (device loop1): Using r5 hash to sort names [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("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./249/binderfs") = 0 [ 255.042250][ T9379] overlayfs: upper fs needs to support d_type. [ 255.048627][ T9385] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 255.053639][ T9379] overlayfs: upper fs does not support tmpfile. [ 255.071491][ T9383] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 255.081689][ T9385] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9378] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9385] <... mount resumed>) = 0 [pid 9378] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9385] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9378] <... futex resumed>) = 0 [pid 9385] chdir("./file0") = 0 [pid 9385] ioctl(4, LOOP_CLR_FD) = 0 [pid 9378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9385] close(4) = 0 [pid 9378] <... mmap resumed>) = 0x7f38d9b57000 [pid 9385] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9384] <... futex resumed>) = 0 [pid 9385] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9384] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9384] <... futex resumed>) = 0 [pid 9385] mkdir("./file1", 000 [pid 9384] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9385] <... mkdir resumed>) = 0 [pid 9378] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9385] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9378] <... mprotect resumed>) = 0 [pid 9385] <... futex resumed>) = 1 [pid 9384] <... futex resumed>) = 0 [pid 9378] 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 9385] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9384] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9384] <... futex resumed>) = 0 [pid 9378] <... clone resumed>, parent_tid=[9391], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9391 [pid 9385] mkdir("./bus", 000 [pid 9384] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9378] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9385] <... mkdir resumed>) = 0 [pid 9378] <... futex resumed>) = 0 [pid 9385] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9378] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9385] <... futex resumed>) = 1 [pid 9384] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9391 attached [pid 9385] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9384] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9384] <... futex resumed>) = 0 [pid 9385] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9391] set_robust_list(0x7f38d9b779e0, 24 [pid 9384] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9383] <... mount resumed>) = 0 [pid 9383] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9383] chdir("./file0") = 0 [pid 9383] ioctl(4, LOOP_CLR_FD) = 0 [pid 9383] close(4 [pid 9391] <... set_robust_list resumed>) = 0 [pid 9391] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9391] 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 9383] <... close resumed>) = 0 [pid 9383] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9382] <... futex resumed>) = 0 [pid 9382] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9383] mkdir("./file1", 000) = 0 [pid 9382] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9383] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9382] <... futex resumed>) = 0 [pid 9383] mkdir("./bus", 000 [pid 9382] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9383] <... mkdir resumed>) = 0 [pid 9382] <... futex resumed>) = 0 [pid 9383] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9382] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9383] <... futex resumed>) = 0 [pid 9382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9383] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 255.082200][ T9379] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 255.113320][ T9385] overlayfs: upper fs needs to support d_type. [ 255.122755][ T9385] overlayfs: upper fs does not support tmpfile. [pid 9382] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9391] <... mount resumed>) = 0 [pid 9382] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9391] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9391] chdir(".") = 0 [pid 9391] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9378] <... futex resumed>) = 0 [pid 9391] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9384] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9384] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9384] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9384] 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=[9392], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9392 [pid 9384] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9384] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9392 attached [pid 9392] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 4998] <... umount2 resumed>) = 0 [ 255.145388][ T9383] overlayfs: upper fs needs to support d_type. [ 255.153842][ T9385] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 255.167033][ T9383] overlayfs: upper fs does not support tmpfile. [ 255.174033][ T9383] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9392] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9392] 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 4998] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9382] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9382] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9382] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9392] <... mount resumed>) = 0 [pid 9382] <... mprotect resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9392] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9382] 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 9392] <... openat resumed>) = 4 [pid 4998] lstat("./249/file0", [pid 9392] chdir("." [pid 9382] <... clone resumed>, parent_tid=[9393], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9393 [pid 9392] <... chdir resumed>) = 0 [pid 9382] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9392] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9382] <... futex resumed>) = 0 [pid 4998] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9392] <... futex resumed>) = 1 [pid 9384] <... futex resumed>) = 0 [pid 9382] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9392] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] openat(AT_FDCWD, "./249/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 ./strace-static-x86_64: Process 9393 attached [pid 4998] close(4 [pid 9393] set_robust_list(0x7f38d9b779e0, 24 [pid 4998] <... close resumed>) = 0 [pid 9393] <... set_robust_list resumed>) = 0 [pid 4998] rmdir("./249/file0" [pid 9393] mkdir(".", 0777 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 9393] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 9393] 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 4998] rmdir("./249") = 0 [pid 4998] mkdir("./250", 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 9393] <... mount resumed>) = 0 [pid 9393] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 4998] close(3 [pid 9393] chdir("." [pid 4998] <... close resumed>) = 0 [pid 9393] <... chdir resumed>) = 0 [pid 9393] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9382] <... futex resumed>) = 0 [pid 9393] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9394 ./strace-static-x86_64: Process 9394 attached [pid 9394] set_robust_list(0x555556b565e0, 24) = 0 [pid 9394] chdir("./250") = 0 [pid 9394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9394] setpgid(0, 0) = 0 [pid 9394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9394] write(3, "1000", 4) = 4 [pid 9394] close(3) = 0 [pid 9394] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9394] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9394] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9394] 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=[9395], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9395 [pid 9394] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9394] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9395 attached [pid 9395] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9385] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9385] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9395] memfd_create("syzkaller", 0 [pid 9385] <... futex resumed>) = 0 [pid 9384] exit_group(0 [pid 9395] <... memfd_create resumed>) = 3 [pid 9392] <... futex resumed>) = ? [pid 9384] <... exit_group resumed>) = ? [pid 9395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9392] +++ exited with 0 +++ [pid 9385] +++ exited with 0 +++ [pid 9384] +++ exited with 0 +++ [pid 9395] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9384, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 255.196604][ T9385] overlayfs: failed to resolve './file0': -2 [ 255.213395][ T9379] overlayfs: failed to resolve './file0': -2 [ 255.221971][ T9383] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./249", 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("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./249/binderfs") = 0 [pid 4999] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9383] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9379] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9383] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9382] exit_group(0 [pid 9379] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9378] exit_group(0 [pid 9393] <... futex resumed>) = ? [pid 9391] <... futex resumed>) = ? [pid 9382] <... exit_group resumed>) = ? [pid 9379] <... futex resumed>) = ? [pid 9378] <... exit_group resumed>) = ? [pid 9393] +++ exited with 0 +++ [pid 9391] +++ exited with 0 +++ [pid 9383] +++ exited with 0 +++ [pid 9382] +++ exited with 0 +++ [pid 9379] +++ exited with 0 +++ [pid 9378] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9378, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9382, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 5003] <... restart_syscall resumed>) = 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 5003] umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] openat(AT_FDCWD, "./250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] getdents64(3, [pid 5000] <... openat resumed>) = 3 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] fstat(3, [pid 5003] umount2("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] getdents64(3, [pid 5003] lstat("./249/binderfs", [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] umount2("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] unlink("./249/binderfs" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... unlink resumed>) = 0 [pid 5000] lstat("./250/binderfs", [pid 5003] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9395] 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] unlink("./250/binderfs") = 0 [pid 5000] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./249/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./249/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("./249/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./249") = 0 [pid 4999] mkdir("./250", 0777) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9395] <... write resumed>) = 4194304 [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) = 9396 ./strace-static-x86_64: Process 9396 attached [pid 9396] set_robust_list(0x555556b565e0, 24) = 0 [pid 9396] chdir("./250") = 0 [pid 9396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9396] setpgid(0, 0) = 0 [pid 9396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9396] write(3, "1000", 4) = 4 [pid 9396] close(3) = 0 [pid 9396] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9396] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9396] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9395] munmap(0x7f38d9778000, 4194304 [pid 9396] <... mprotect resumed>) = 0 [pid 9396] 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 9395] <... munmap resumed>) = 0 [pid 9396] <... clone resumed>, parent_tid=[9397], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9397 [pid 9396] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9396] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9395] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9397 attached [pid 9397] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9397] memfd_create("syzkaller", 0) = 3 [pid 9397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9395] <... ioctl resumed>) = 0 [pid 9395] close(3) = 0 [pid 5003] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./249/file0", [pid 9395] mkdir("./file0", 0777 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./249/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("./249/file0" [pid 9395] <... mkdir resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./249" [pid 9395] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./250", 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 5000] <... umount2 resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9399 [ 255.422607][ T9395] loop0: detected capacity change from 0 to 8192 ./strace-static-x86_64: Process 9399 attached [pid 5000] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9399] set_robust_list(0x555556b565e0, 24 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9399] <... set_robust_list resumed>) = 0 [pid 5000] lstat("./250/file0", [pid 9399] chdir("./250" [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9399] <... chdir resumed>) = 0 [pid 5000] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9399] <... prctl resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./250/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9399] setpgid(0, 0 [pid 5000] <... openat resumed>) = 4 [pid 9399] <... setpgid resumed>) = 0 [pid 5000] fstat(4, [pid 9399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9399] <... openat resumed>) = 3 [pid 5000] getdents64(4, [pid 9399] write(3, "1000", 4 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9399] <... write resumed>) = 4 [pid 5000] getdents64(4, [pid 9399] close(3 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9399] <... close resumed>) = 0 [pid 5000] close(4 [pid 9399] symlink("/dev/binderfs", "./binderfs" [pid 5000] <... close resumed>) = 0 [pid 9399] <... symlink resumed>) = 0 [pid 5000] rmdir("./250/file0" [pid 9399] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] getdents64(3, [pid 9399] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9399] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] close(3 [pid 9399] <... mprotect resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9399] 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] rmdir("./250") = 0 [pid 9399] <... clone resumed>, parent_tid=[9400], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9400 [pid 5000] mkdir("./251", 0777 [pid 9399] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9397] 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] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 9400 attached [pid 9400] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9400] memfd_create("syzkaller", 0) = 3 [pid 9400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9399] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 255.478529][ T9395] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 255.511283][ T9395] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 255.521351][ T9395] REISERFS (device loop0): using ordered data mode [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9401 ./strace-static-x86_64: Process 9401 attached [pid 9401] set_robust_list(0x555556b565e0, 24) = 0 [pid 9401] chdir("./251") = 0 [pid 9401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9401] setpgid(0, 0) = 0 [pid 9401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9401] write(3, "1000", 4) = 4 [pid 9401] close(3) = 0 [pid 9401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9401] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [ 255.528300][ T9395] reiserfs: using flush barriers [ 255.534190][ T9395] 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 [ 255.550925][ T9395] REISERFS (device loop0): checking transaction log (loop0) [ 255.566699][ T9395] REISERFS (device loop0): Using r5 hash to sort names [pid 9401] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9400] 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 9401] <... mprotect resumed>) = 0 [pid 9401] 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=[9402], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9402 [pid 9401] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9401] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9402 attached [pid 9397] <... write resumed>) = 4194304 [pid 9402] set_robust_list(0x7f38e1b989e0, 24 [pid 9397] munmap(0x7f38d9778000, 4194304 [pid 9395] <... mount resumed>) = 0 [pid 9402] <... set_robust_list resumed>) = 0 [pid 9402] memfd_create("syzkaller", 0 [pid 9395] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9402] <... memfd_create resumed>) = 3 [pid 9402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9395] <... openat resumed>) = 3 [pid 9402] <... mmap resumed>) = 0x7f38d9778000 [pid 9395] chdir("./file0" [pid 9402] 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 9400] <... write resumed>) = 4194304 [pid 9397] <... munmap resumed>) = 0 [pid 9395] <... chdir resumed>) = 0 [pid 9400] munmap(0x7f38d9778000, 4194304 [pid 9397] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9395] ioctl(4, LOOP_CLR_FD [pid 9400] <... munmap resumed>) = 0 [pid 9397] <... openat resumed>) = 4 [pid 9395] <... ioctl resumed>) = 0 [ 255.573851][ T9395] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 255.587164][ T9395] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9397] ioctl(4, LOOP_SET_FD, 3 [pid 9395] close(4 [pid 9402] <... write resumed>) = 4194304 [pid 9397] <... ioctl resumed>) = 0 [pid 9395] <... close resumed>) = 0 [pid 9402] munmap(0x7f38d9778000, 4194304 [pid 9395] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9402] <... munmap resumed>) = 0 [pid 9395] <... futex resumed>) = 1 [pid 9394] <... futex resumed>) = 0 [pid 9394] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9395] mkdir("./file1", 000 [pid 9394] <... futex resumed>) = 0 [pid 9402] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9395] <... mkdir resumed>) = 0 [pid 9394] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9395] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9402] ioctl(4, LOOP_SET_FD, 3 [pid 9394] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9395] <... futex resumed>) = 0 [pid 9394] <... futex resumed>) = 0 [pid 9395] mkdir("./bus", 000 [pid 9394] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9402] <... ioctl resumed>) = 0 [pid 9402] close(3 [pid 9395] <... mkdir resumed>) = 0 [pid 9395] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9394] <... futex resumed>) = 0 [pid 9395] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9394] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9394] <... futex resumed>) = 0 [pid 9395] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9394] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9402] <... close resumed>) = 0 [pid 9402] mkdir("./file0", 0777) = 0 [pid 9402] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9400] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9400] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9400] close(3) = 0 [pid 9400] mkdir("./file0", 0777) = 0 [pid 9400] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9397] close(3) = 0 [pid 9397] mkdir("./file0", 0777) = 0 [ 255.626609][ T9397] loop1: detected capacity change from 0 to 8192 [ 255.641135][ T9402] loop2: detected capacity change from 0 to 8192 [ 255.649884][ T9395] overlayfs: upper fs needs to support d_type. [ 255.650611][ T9400] loop5: detected capacity change from 0 to 8192 [ 255.665350][ T9395] overlayfs: upper fs does not support tmpfile. [pid 9397] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9394] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9394] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9394] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9394] 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=[9406], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9406 [pid 9394] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 255.672227][ T9402] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 255.672716][ T9397] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 255.687231][ T9395] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 255.706159][ T9400] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9394] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9406 attached [pid 9406] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9406] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9406] 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 9406] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9406] chdir(".") = 0 [pid 9406] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9394] <... futex resumed>) = 0 [pid 9406] <... futex resumed>) = 1 [ 255.711399][ T9402] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 255.720497][ T9395] overlayfs: failed to resolve './file0': -2 [ 255.734897][ T9400] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 255.753116][ T9400] REISERFS (device loop5): using ordered data mode [ 255.759885][ T9400] reiserfs: using flush barriers [ 255.760625][ T9402] REISERFS (device loop2): using ordered data mode [pid 9406] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9395] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9395] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 255.765970][ T9400] 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 [ 255.772188][ T9397] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 255.787710][ T9402] reiserfs: using flush barriers [ 255.798657][ T9400] REISERFS (device loop5): checking transaction log (loop5) [ 255.802974][ T9402] 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 9395] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9394] exit_group(0 [pid 9395] <... futex resumed>) = ? [pid 9394] <... exit_group resumed>) = ? [pid 9395] +++ exited with 0 +++ [pid 9406] <... futex resumed>) = ? [pid 9406] +++ exited with 0 +++ [pid 9394] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9394, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 4998] umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./250", 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("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./250/binderfs") = 0 [pid 4998] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9400] <... mount resumed>) = 0 [pid 9400] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9400] chdir("./file0") = 0 [pid 9400] ioctl(4, LOOP_CLR_FD) = 0 [ 255.810909][ T9397] REISERFS (device loop1): using ordered data mode [ 255.826175][ T9400] REISERFS (device loop5): Using r5 hash to sort names [ 255.839487][ T9400] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 255.840468][ T9397] reiserfs: using flush barriers [ 255.852630][ T9400] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 255.859121][ T9402] REISERFS (device loop2): checking transaction log (loop2) [pid 9400] close(4) = 0 [pid 9400] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9400] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9399] <... futex resumed>) = 0 [pid 9399] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9400] <... futex resumed>) = 0 [pid 9399] <... futex resumed>) = 1 [pid 9400] mkdir("./file1", 000 [pid 9399] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9400] <... mkdir resumed>) = 0 [pid 9400] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9399] <... futex resumed>) = 0 [pid 9400] mkdir("./bus", 000 [pid 9399] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9400] <... mkdir resumed>) = 0 [pid 9399] <... futex resumed>) = 0 [pid 9400] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9399] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9400] <... futex resumed>) = 0 [pid 9399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9400] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9399] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 255.884957][ T9397] 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 [ 255.896565][ T9402] REISERFS (device loop2): Using r5 hash to sort names [ 255.901979][ T9397] REISERFS (device loop1): checking transaction log (loop1) [ 255.913299][ T9402] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 255.920211][ T9400] overlayfs: upper fs needs to support d_type. [pid 9399] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9399] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9399] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9399] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9399] 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=[9407], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9407 [pid 9399] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9399] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9407 attached [pid 9407] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9407] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9407] 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 9402] <... mount resumed>) = 0 [pid 9402] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9402] chdir("./file0") = 0 [pid 9402] ioctl(4, LOOP_CLR_FD) = 0 [ 255.928865][ T9397] REISERFS (device loop1): Using r5 hash to sort names [ 255.941865][ T9402] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 255.942712][ T9400] overlayfs: upper fs does not support tmpfile. [ 255.951592][ T9397] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9407] <... mount resumed>) = 0 [pid 9407] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9407] chdir(".") = 0 [pid 9407] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9399] <... futex resumed>) = 0 [pid 9407] <... futex resumed>) = 1 [pid 9407] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./250/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./250/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9402] close(4 [pid 4998] getdents64(4, [pid 9402] <... close resumed>) = 0 [pid 9397] <... mount resumed>) = 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 4998] rmdir("./250/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./250" [pid 9402] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9401] <... futex resumed>) = 0 [pid 9397] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9401] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9401] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9397] <... openat resumed>) = 3 [pid 9402] mkdir("./file1", 000 [pid 9397] chdir("./file0" [pid 9402] <... mkdir resumed>) = 0 [pid 9397] <... chdir resumed>) = 0 [pid 9402] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9397] ioctl(4, LOOP_CLR_FD [pid 9402] <... futex resumed>) = 1 [pid 9401] <... futex resumed>) = 0 [pid 9401] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9402] mkdir("./bus", 000 [pid 9401] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9397] <... ioctl resumed>) = 0 [pid 9402] <... mkdir resumed>) = 0 [pid 9397] close(4 [pid 9402] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... rmdir resumed>) = 0 [pid 9402] <... futex resumed>) = 1 [pid 9401] <... futex resumed>) = 0 [pid 9397] <... close resumed>) = 0 [pid 9402] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9401] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9402] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9401] <... futex resumed>) = 0 [pid 9397] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9402] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9401] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9397] <... futex resumed>) = 1 [pid 9396] <... futex resumed>) = 0 [pid 9396] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9396] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] mkdir("./251", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 9397] mkdir("./file1", 000 [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 9397] <... mkdir resumed>) = 0 [pid 9397] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9396] <... futex resumed>) = 0 [pid 9397] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9396] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9396] <... futex resumed>) = 0 [pid 9397] mkdir("./bus", 000 [pid 9396] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9397] <... mkdir resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9408 [pid 9397] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9397] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9396] <... futex resumed>) = 0 [ 255.982320][ T9397] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 255.996813][ T9400] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 256.011764][ T9402] overlayfs: upper fs needs to support d_type. [ 256.022495][ T9400] overlayfs: failed to resolve './file0': -2 [pid 9396] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9397] <... futex resumed>) = 0 [pid 9397] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9396] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9408 attached [pid 9408] set_robust_list(0x555556b565e0, 24) = 0 [pid 9408] chdir("./251") = 0 [pid 9408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9408] setpgid(0, 0) = 0 [pid 9408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9408] write(3, "1000", 4) = 4 [pid 9408] close(3) = 0 [pid 9408] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9408] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9408] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9408] 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=[9409], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9409 [pid 9408] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9408] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9401] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9401] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9401] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9401] 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=[9410], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9410 [pid 9401] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9409 attached ) = 0 [pid 9409] set_robust_list(0x7f38e1b989e0, 24 [pid 9401] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9409] <... set_robust_list resumed>) = 0 [pid 9409] memfd_create("syzkaller", 0) = 3 [pid 9409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9410 attached [pid 9410] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9410] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9410] 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 9410] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9410] chdir(".") = 0 [pid 9410] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9401] <... futex resumed>) = 0 [pid 9410] <... futex resumed>) = 1 [pid 9410] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9396] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9396] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [ 256.032851][ T9397] overlayfs: upper fs needs to support d_type. [ 256.040200][ T9402] overlayfs: upper fs does not support tmpfile. [ 256.047543][ T9397] overlayfs: upper fs does not support tmpfile. [ 256.075317][ T9402] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9396] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9396] 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=[9411], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9411 [pid 9396] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9400] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9396] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9400] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9399] exit_group(0 [pid 9407] <... futex resumed>) = ? [pid 9399] <... exit_group resumed>) = ? [pid 9407] +++ exited with 0 +++ [pid 9400] +++ exited with 0 +++ [pid 9399] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9399, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- ./strace-static-x86_64: Process 9411 attached [pid 9411] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 5003] umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9411] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9411] 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(AT_FDCWD, "./250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9409] 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 9411] <... mount resumed>) = 0 [pid 9411] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9411] chdir(".") = 0 [pid 9411] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9411] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] fstat(3, [pid 9396] <... futex resumed>) = 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("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./250/binderfs") = 0 [pid 5003] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9402] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9402] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9401] exit_group(0 [pid 9410] <... futex resumed>) = ? [pid 9401] <... exit_group resumed>) = ? [pid 9410] +++ exited with 0 +++ [pid 9402] <... futex resumed>) = ? [pid 9397] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9397] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9397] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9396] exit_group(0 [pid 9411] <... futex resumed>) = ? [pid 9396] <... exit_group resumed>) = ? [pid 9411] +++ exited with 0 +++ [pid 9397] <... futex resumed>) = ? [pid 9402] +++ exited with 0 +++ [pid 9401] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9401, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, [pid 9397] +++ exited with 0 +++ [pid 9396] +++ exited with 0 +++ [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9396, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4999] umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] fstat(3, [pid 5000] lstat("./251/binderfs", [pid 4999] <... 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] getdents64(3, [pid 5000] unlink("./251/binderfs" [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./250/binderfs") = 0 [ 256.086756][ T9397] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 256.107945][ T9397] overlayfs: failed to resolve './file0': -2 [ 256.114926][ T9402] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9409] <... write resumed>) = 4194304 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./250/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./250/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 9409] munmap(0x7f38d9778000, 4194304 [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("./250/file0" [pid 9409] <... munmap resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5003] <... rmdir resumed>) = 0 [pid 9409] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] getdents64(3, [pid 5000] lstat("./251/file0", [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] close(3) = 0 [pid 5000] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] rmdir("./250" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... rmdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./251/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, [pid 5003] mkdir("./251", 0777 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./251/file0") = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 5000] getdents64(3, [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... openat resumed>) = 3 [pid 5000] close(3) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] rmdir("./251") = 0 [pid 5003] close(3 [pid 9409] <... ioctl resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] mkdir("./252", 0777 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./250/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./250/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] <... mkdir resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] fstat(4, [pid 9409] close(3 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4999] getdents64(4, ./strace-static-x86_64: Process 9412 attached [pid 9409] <... close resumed>) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9412 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] getdents64(4, [pid 9409] mkdir("./file0", 0777 [pid 5000] close(3 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9412] set_robust_list(0x555556b565e0, 24 [pid 9409] <... mkdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] close(4 [pid 9412] <... set_robust_list resumed>) = 0 [pid 9409] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... close resumed>) = 0 [pid 9412] chdir("./251" [pid 4999] rmdir("./250/file0" [pid 9412] <... chdir resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9414 [pid 4999] <... rmdir resumed>) = 0 [pid 9412] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] getdents64(3, [pid 9412] <... prctl resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9412] setpgid(0, 0 [pid 4999] close(3 [pid 9412] <... setpgid resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 9412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] rmdir("./250" [pid 9412] <... openat resumed>) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 9412] write(3, "1000", 4 [pid 4999] mkdir("./251", 0777 [pid 9412] <... write resumed>) = 4 ./strace-static-x86_64: Process 9414 attached [pid 9414] set_robust_list(0x555556b565e0, 24) = 0 [pid 9414] chdir("./252") = 0 [pid 9414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9414] setpgid(0, 0) = 0 [pid 9414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9414] write(3, "1000", 4) = 4 [pid 9414] close(3) = 0 [pid 9414] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9414] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9414] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9414] 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=[9415], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9415 [pid 9414] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9414] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9415 attached [pid 9415] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9415] memfd_create("syzkaller", 0) = 3 [pid 9415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 256.229054][ T9409] loop0: detected capacity change from 0 to 8192 [ 256.260741][ T9409] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9412] close(3 [pid 4999] <... mkdir resumed>) = 0 [pid 9415] 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 9412] <... close resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9412] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9412] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9412] <... futex resumed>) = 0 [pid 4999] close(3 [pid 9412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] <... close resumed>) = 0 [pid 9415] <... write resumed>) = 4194304 [pid 9415] munmap(0x7f38d9778000, 4194304) = 0 [pid 9415] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9415] ioctl(4, LOOP_SET_FD, 3 [pid 9412] <... mmap resumed>) = 0x7f38e1b78000 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9415] <... ioctl resumed>) = 0 [pid 9415] close(3) = 0 [pid 9415] mkdir("./file0", 0777) = 0 [pid 9415] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9412] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9412] 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=[9417], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9417 [pid 9412] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9412] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9418 ./strace-static-x86_64: Process 9418 attached [pid 9418] set_robust_list(0x555556b565e0, 24) = 0 [pid 9418] chdir("./251") = 0 [pid 9418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9418] setpgid(0, 0) = 0 [pid 9418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 256.274491][ T9409] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 256.286095][ T9409] REISERFS (device loop0): using ordered data mode [ 256.293019][ T9409] reiserfs: using flush barriers [ 256.308220][ T9415] loop2: detected capacity change from 0 to 8192 [pid 9418] write(3, "1000", 4) = 4 [pid 9418] close(3) = 0 ./strace-static-x86_64: Process 9417 attached [pid 9418] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9418] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9418] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9418] 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=[9419], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9419 [pid 9418] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9418] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9419 attached [pid 9419] set_robust_list(0x7f38e1b989e0, 24 [pid 9417] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9419] <... set_robust_list resumed>) = 0 [pid 9419] memfd_create("syzkaller", 0) = 3 [pid 9419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9417] memfd_create("syzkaller", 0) = 3 [ 256.311040][ T9409] 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 [ 256.331799][ T9409] REISERFS (device loop0): checking transaction log (loop0) [ 256.339743][ T9415] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 256.340217][ T9409] REISERFS (device loop0): Using r5 hash to sort names [ 256.361339][ T9409] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9409] <... mount resumed>) = 0 [pid 9409] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9409] chdir("./file0") = 0 [pid 9409] ioctl(4, LOOP_CLR_FD) = 0 [pid 9409] close(4) = 0 [pid 9409] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9408] <... futex resumed>) = 0 [pid 9408] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9408] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9409] <... futex resumed>) = 1 [pid 9409] mkdir("./file1", 000) = 0 [pid 9409] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9408] <... futex resumed>) = 0 [pid 9408] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9408] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9409] <... futex resumed>) = 1 [pid 9409] mkdir("./bus", 000) = 0 [pid 9409] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9408] <... futex resumed>) = 0 [pid 9408] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9408] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9409] <... futex resumed>) = 1 [ 256.370095][ T9415] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 256.374824][ T9409] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 256.392918][ T9415] REISERFS (device loop2): using ordered data mode [ 256.399544][ T9415] reiserfs: using flush barriers [ 256.405511][ T9415] 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 9409] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9419] 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 9417] 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 9408] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9408] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9408] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [ 256.434786][ T9409] overlayfs: upper fs needs to support d_type. [ 256.442382][ T9415] REISERFS (device loop2): checking transaction log (loop2) [ 256.450892][ T9415] REISERFS (device loop2): Using r5 hash to sort names [ 256.457992][ T9415] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 256.467120][ T9409] overlayfs: upper fs does not support tmpfile. [pid 9408] 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 9420 attached [pid 9415] <... mount resumed>) = 0 [pid 9408] <... clone resumed>, parent_tid=[9420], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9420 [pid 9420] set_robust_list(0x7f38d9b779e0, 24 [pid 9415] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9408] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9420] <... set_robust_list resumed>) = 0 [pid 9415] <... openat resumed>) = 3 [pid 9408] <... futex resumed>) = 0 [pid 9408] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9420] mkdir(".", 0777 [pid 9415] chdir("./file0" [pid 9420] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9415] <... chdir resumed>) = 0 [pid 9420] 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 9415] ioctl(4, LOOP_CLR_FD [pid 9409] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9415] <... ioctl resumed>) = 0 [pid 9415] close(4) = 0 [pid 9415] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9414] <... futex resumed>) = 0 [pid 9420] <... mount resumed>) = 0 [pid 9415] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9414] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9409] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9420] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9414] <... futex resumed>) = 0 [pid 9409] <... futex resumed>) = 0 [pid 9420] <... openat resumed>) = 4 [pid 9415] mkdir("./file1", 000 [pid 9414] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9409] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9420] chdir("." [pid 9415] <... mkdir resumed>) = 0 [pid 9415] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9420] <... chdir resumed>) = 0 [pid 9415] <... futex resumed>) = 1 [pid 9414] <... futex resumed>) = 0 [pid 9420] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9415] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9414] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9420] <... futex resumed>) = 1 [pid 9415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9414] <... futex resumed>) = 0 [pid 9408] <... futex resumed>) = 0 [pid 9420] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9415] mkdir("./bus", 000 [pid 9414] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9408] exit_group(0 [pid 9420] <... futex resumed>) = ? [pid 9415] <... mkdir resumed>) = 0 [pid 9409] <... futex resumed>) = ? [pid 9408] <... exit_group resumed>) = ? [pid 9420] +++ exited with 0 +++ [pid 9415] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9409] +++ exited with 0 +++ [pid 9408] +++ exited with 0 +++ [pid 9415] <... futex resumed>) = 1 [pid 9414] <... futex resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9408, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9419] <... write resumed>) = 4194304 [pid 9415] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9414] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9419] munmap(0x7f38d9778000, 4194304 [pid 9415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9414] <... futex resumed>) = 0 [pid 9419] <... munmap resumed>) = 0 [ 256.470985][ T9415] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 256.486726][ T9409] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 256.494632][ T9409] overlayfs: failed to resolve './file0': -2 [pid 9415] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9417] <... write resumed>) = 4194304 [pid 9414] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9419] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9417] munmap(0x7f38d9778000, 4194304 [pid 4998] umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9417] <... munmap resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9417] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] getdents64(3, [pid 9417] <... openat resumed>) = 4 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9417] ioctl(4, LOOP_SET_FD, 3 [pid 4998] umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9419] <... openat resumed>) = 4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9419] ioctl(4, LOOP_SET_FD, 3 [pid 4998] lstat("./251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./251/binderfs") = 0 [pid 4998] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9417] <... ioctl resumed>) = 0 [pid 9417] close(3) = 0 [pid 9417] mkdir("./file0", 0777) = 0 [ 256.541756][ T9415] overlayfs: upper fs needs to support d_type. [ 256.548049][ T9415] overlayfs: upper fs does not support tmpfile. [ 256.555293][ T9415] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 256.558006][ T9417] loop5: detected capacity change from 0 to 8192 [ 256.571044][ T9415] overlayfs: failed to resolve './file0': -2 [ 256.577305][ T9419] loop1: detected capacity change from 0 to 8192 [pid 9417] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9419] <... ioctl resumed>) = 0 [pid 9419] close(3) = 0 [pid 9419] mkdir("./file0", 0777) = 0 [pid 9419] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9414] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9414] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9415] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9414] <... futex resumed>) = 0 [pid 9414] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9414] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9414] 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=[9423], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9423 [pid 9414] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9414] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9415] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9423 attached ) = 0 [pid 9423] set_robust_list(0x7f38d9b779e0, 24 [pid 9415] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9423] <... set_robust_list resumed>) = 0 [pid 9423] mkdir(".", 0777) = -1 EEXIST (File exists) [ 256.581783][ T9417] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 256.596845][ T9419] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 256.605784][ T9417] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 256.611165][ T9419] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 256.619443][ T9417] REISERFS (device loop5): using ordered data mode [ 256.635061][ T9417] reiserfs: using flush barriers [pid 9423] 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 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./251/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./251/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("./251/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./251") = 0 [pid 4998] mkdir("./252", 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) = 9424 ./strace-static-x86_64: Process 9424 attached [pid 9424] set_robust_list(0x555556b565e0, 24) = 0 [pid 9424] chdir("./252") = 0 [pid 9424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9424] setpgid(0, 0) = 0 [pid 9424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9424] write(3, "1000", 4) = 4 [pid 9424] close(3) = 0 [pid 9424] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9424] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9424] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9424] 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=[9425], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9425 [pid 9424] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9424] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9425 attached [pid 9425] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9425] memfd_create("syzkaller", 0) = 3 [pid 9425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9423] <... mount resumed>) = 0 [pid 9423] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9423] chdir(".") = 0 [pid 9423] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9414] <... futex resumed>) = 0 [pid 9414] exit_group(0) = ? [pid 9415] <... futex resumed>) = ? [pid 9415] +++ exited with 0 +++ [pid 9423] +++ exited with 0 +++ [pid 9414] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9414, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 256.660960][ T9417] 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 [ 256.661095][ T9419] REISERFS (device loop1): using ordered data mode [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./252/binderfs") = 0 [pid 5000] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 256.710881][ T9417] REISERFS (device loop5): checking transaction log (loop5) [ 256.736914][ T9417] REISERFS (device loop5): Using r5 hash to sort names [ 256.744119][ T9419] reiserfs: using flush barriers [ 256.749632][ T9417] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9425] 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 9425] munmap(0x7f38d9778000, 4194304) = 0 [pid 9425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9425] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./252/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./252/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("./252/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./252" [pid 9425] <... ioctl resumed>) = 0 [pid 9425] close(3) = 0 [pid 9425] mkdir("./file0", 0777) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./253", 0777) = 0 [pid 9425] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [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) = 9427 ./strace-static-x86_64: Process 9427 attached [pid 9427] set_robust_list(0x555556b565e0, 24) = 0 [ 256.763867][ T9419] 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 [ 256.774363][ T9425] loop0: detected capacity change from 0 to 8192 [ 256.796780][ T9417] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 256.806960][ T9419] REISERFS (device loop1): checking transaction log (loop1) [pid 9427] chdir("./253") = 0 [pid 9417] <... mount resumed>) = 0 [pid 9427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9427] setpgid(0, 0) = 0 [pid 9427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9427] write(3, "1000", 4) = 4 [pid 9427] close(3) = 0 [pid 9427] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9427] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9427] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9427] 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=[9428], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9428 [pid 9427] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9427] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9417] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9417] chdir("./file0") = 0 [pid 9417] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 9428 attached [pid 9417] close(4 [pid 9428] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9428] memfd_create("syzkaller", 0) = 3 [pid 9428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9417] <... close resumed>) = 0 [pid 9417] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9412] <... futex resumed>) = 0 [pid 9417] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 256.815074][ T9419] REISERFS (device loop1): Using r5 hash to sort names [ 256.819757][ T9425] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 256.826125][ T9419] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 256.848415][ T9425] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9412] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9417] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9412] <... futex resumed>) = 0 [pid 9417] mkdir("./file1", 000 [pid 9412] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9417] <... mkdir resumed>) = 0 [pid 9417] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9412] <... futex resumed>) = 0 [pid 9417] mkdir("./bus", 000 [pid 9412] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9417] <... mkdir resumed>) = 0 [pid 9412] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9417] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9412] <... futex resumed>) = 0 [pid 9417] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9412] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9412] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9419] <... mount resumed>) = 0 [pid 9419] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9419] chdir("./file0") = 0 [pid 9419] ioctl(4, LOOP_CLR_FD) = 0 [pid 9419] close(4) = 0 [pid 9419] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9419] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9428] 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 9418] <... futex resumed>) = 0 [pid 9412] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9412] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9412] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9412] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9412] 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=[9429], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9429 [pid 9412] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9412] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9428] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 9429 attached [pid 9429] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9428] munmap(0x7f38d9778000, 4194304 [pid 9429] mkdir(".", 0777 [pid 9418] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9419] <... futex resumed>) = 0 [pid 9418] <... futex resumed>) = 1 [ 256.868532][ T9419] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 256.883491][ T9417] overlayfs: upper fs needs to support d_type. [ 256.883518][ T9425] REISERFS (device loop0): using ordered data mode [ 256.883529][ T9425] reiserfs: using flush barriers [ 256.901867][ T9425] 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 9419] mkdir("./file1", 000 [pid 9418] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9419] <... mkdir resumed>) = 0 [pid 9419] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9418] <... futex resumed>) = 0 [pid 9419] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9418] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9418] <... futex resumed>) = 0 [pid 9419] mkdir("./bus", 000 [pid 9418] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9419] <... mkdir resumed>) = 0 [pid 9419] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9418] <... futex resumed>) = 0 [pid 9419] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9418] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9419] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9429] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9429] 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 9428] <... munmap resumed>) = 0 [pid 9428] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9428] ioctl(4, LOOP_SET_FD, 3 [pid 9429] <... mount resumed>) = 0 [pid 9418] <... futex resumed>) = 0 [pid 9418] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9429] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9428] <... ioctl resumed>) = 0 [pid 9428] close(3) = 0 [pid 9428] mkdir("./file0", 0777) = 0 [ 256.952571][ T9417] overlayfs: upper fs does not support tmpfile. [ 256.958746][ T9428] loop2: detected capacity change from 0 to 8192 [ 256.959837][ T9425] REISERFS (device loop0): checking transaction log (loop0) [ 256.965767][ T9419] overlayfs: upper fs needs to support d_type. [ 256.972998][ T9417] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 256.981782][ T9419] overlayfs: upper fs does not support tmpfile. [ 256.988674][ T9417] overlayfs: failed to resolve './file0': -2 [pid 9428] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9429] <... openat resumed>) = 4 [pid 9429] chdir(".") = 0 [pid 9429] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9412] <... futex resumed>) = 0 [pid 9429] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9417] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 256.992831][ T9419] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 257.006174][ T9425] REISERFS (device loop0): Using r5 hash to sort names [ 257.013162][ T9425] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 257.018599][ T9419] overlayfs: failed to resolve './file0': -2 [ 257.032383][ T9425] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9418] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9417] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9412] exit_group(0 [pid 9417] ???( [pid 9412] <... exit_group resumed>) = ? [pid 9417] <... ??? resumed>) = ? [pid 9429] <... futex resumed>) = ? [pid 9425] <... mount resumed>) = 0 [pid 9418] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9417] +++ exited with 0 +++ [pid 9429] +++ exited with 0 +++ [pid 9418] <... futex resumed>) = 0 [pid 9412] +++ exited with 0 +++ [pid 9418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9418] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9418] 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=[9431], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9431 [pid 9418] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9418] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9431 attached [pid 9431] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9431] mkdir(".", 0777 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9412, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 9425] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9431] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9431] 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 9425] <... openat resumed>) = 3 [pid 9425] chdir("./file0") = 0 [pid 9425] ioctl(4, LOOP_CLR_FD) = 0 [pid 9425] close(4) = 0 [pid 9425] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9424] <... futex resumed>) = 0 [pid 9425] mkdir("./file1", 000 [pid 9424] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9425] <... mkdir resumed>) = 0 [pid 9424] <... futex resumed>) = 0 [pid 5003] umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9425] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9424] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9425] <... futex resumed>) = 0 [pid 9424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9425] mkdir("./bus", 000 [pid 9424] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... openat resumed>) = 3 [pid 9425] <... mkdir resumed>) = 0 [pid 9424] <... futex resumed>) = 0 [pid 5003] fstat(3, [pid 9425] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9424] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9419] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9425] <... futex resumed>) = 0 [pid 9424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] getdents64(3, [pid 9425] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9424] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9424] <... futex resumed>) = 0 [pid 9419] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9425] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9424] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./251/binderfs") = 0 [ 257.033984][ T9428] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 257.064371][ T9428] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 257.073890][ T9428] REISERFS (device loop2): using ordered data mode [ 257.080775][ T9428] reiserfs: using flush barriers [ 257.086667][ T9428] 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 5003] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9419] <... futex resumed>) = 0 [pid 9419] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9431] <... mount resumed>) = 0 [pid 9431] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9431] chdir(".") = 0 [pid 9431] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9418] <... futex resumed>) = 0 [pid 9431] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9418] exit_group(0 [pid 9431] <... futex resumed>) = ? [pid 9419] <... futex resumed>) = ? [pid 9418] <... exit_group resumed>) = ? [pid 9431] +++ exited with 0 +++ [pid 9424] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9419] +++ exited with 0 +++ [pid 9418] +++ exited with 0 +++ [pid 9424] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9418, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9424] <... futex resumed>) = 0 [pid 9424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9424] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [ 257.094546][ T9425] overlayfs: upper fs needs to support d_type. [ 257.104539][ T9428] REISERFS (device loop2): checking transaction log (loop2) [ 257.117804][ T9425] overlayfs: upper fs does not support tmpfile. [ 257.124509][ T9428] REISERFS (device loop2): Using r5 hash to sort names [ 257.131558][ T9425] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 257.139947][ T9425] overlayfs: failed to resolve './file0': -2 [pid 9424] 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 9432 attached [pid 4999] umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9424] <... clone resumed>, parent_tid=[9432], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9432 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9432] set_robust_list(0x7f38d9b779e0, 24 [pid 9425] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9424] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9432] <... set_robust_list resumed>) = 0 [pid 9425] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9424] <... futex resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9432] mkdir(".", 0777 [pid 9425] <... futex resumed>) = 0 [pid 9424] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] fstat(3, [pid 9432] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9425] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9432] 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(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./251/binderfs") = 0 [pid 4999] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9432] <... mount resumed>) = 0 [pid 9432] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9432] chdir(".") = 0 [pid 9432] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = 0 [pid 9432] <... futex resumed>) = 1 [pid 9424] <... futex resumed>) = 0 [pid 5003] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9432] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9424] exit_group(0 [pid 9432] <... futex resumed>) = ? [pid 9425] <... futex resumed>) = ? [pid 9424] <... exit_group resumed>) = ? [pid 9432] +++ exited with 0 +++ [pid 9425] +++ exited with 0 +++ [pid 9424] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./251/file0", [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9424, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 9428] <... mount resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 5003] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... restart_syscall resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./251/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] fstat(4, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] openat(AT_FDCWD, "./252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] getdents64(4, [pid 4998] <... openat resumed>) = 3 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] fstat(3, [pid 9428] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5003] getdents64(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9428] <... openat resumed>) = 3 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(3, [pid 9428] chdir("./file0" [pid 5003] close(4 [pid 4999] <... umount2 resumed>) = 0 [pid 9428] <... chdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9428] ioctl(4, LOOP_CLR_FD [pid 5003] <... close resumed>) = 0 [pid 4999] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9428] <... ioctl resumed>) = 0 [pid 5003] rmdir("./251/file0" [pid 9428] close(4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9428] <... close resumed>) = 0 [pid 9428] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... rmdir resumed>) = 0 [pid 4999] lstat("./251/file0", [pid 9428] <... futex resumed>) = 1 [pid 9427] <... futex resumed>) = 0 [pid 9428] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9427] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9427] <... futex resumed>) = 0 [pid 9428] mkdir("./file1", 000 [pid 9427] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9428] <... mkdir resumed>) = 0 [ 257.146346][ T9428] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 257.191359][ T9428] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9428] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9428] <... futex resumed>) = 1 [pid 9427] <... futex resumed>) = 0 [pid 9428] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9427] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] openat(AT_FDCWD, "./251/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9427] <... futex resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 9428] mkdir("./bus", 000 [pid 9427] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] fstat(4, [pid 9428] <... mkdir resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9428] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(4, [pid 9428] <... futex resumed>) = 1 [pid 9427] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9428] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9427] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(4, [pid 9428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9427] <... futex resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9428] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9427] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] close(4 [pid 5003] getdents64(3, [pid 4999] <... close resumed>) = 0 [pid 4998] lstat("./252/binderfs", [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] rmdir("./251/file0" [pid 5003] close(3 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] <... close resumed>) = 0 [pid 4999] getdents64(3, [pid 4998] unlink("./252/binderfs" [pid 5003] rmdir("./251" [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4999] rmdir("./251" [pid 4998] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] mkdir("./252", 0777 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./252", 0777 [pid 5003] <... 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 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, child_tidptr=0x555556b565d0) = 9433 [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, child_tidptr=0x555556b565d0) = 9434 ./strace-static-x86_64: Process 9434 attached [pid 9434] set_robust_list(0x555556b565e0, 24) = 0 [pid 9434] chdir("./252") = 0 [pid 9434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9434] setpgid(0, 0) = 0 [pid 9434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9434] write(3, "1000", 4) = 4 [pid 9434] close(3) = 0 [pid 9434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9434] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9433 attached [pid 9433] set_robust_list(0x555556b565e0, 24) = 0 [pid 9434] <... mmap resumed>) = 0x7f38e1b78000 [pid 9433] chdir("./252") = 0 [pid 9433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9433] setpgid(0, 0 [pid 9434] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9433] <... setpgid resumed>) = 0 [pid 9433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9433] write(3, "1000", 4) = 4 [pid 9433] close(3) = 0 [pid 9433] symlink("/dev/binderfs", "./binderfs" [pid 9434] <... mprotect resumed>) = 0 [pid 9434] 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 9433] <... symlink resumed>) = 0 [pid 9433] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9433] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9433] 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 9434] <... clone resumed>, parent_tid=[9435], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9435 [pid 9427] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9427] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9433] <... clone resumed>, parent_tid=[9436], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9436 [pid 9427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9433] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9427] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9434] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9433] <... futex resumed>) = 0 [pid 9427] <... mprotect resumed>) = 0 [pid 9434] <... futex resumed>) = 0 [pid 9427] 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 9433] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9434] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9427] <... clone resumed>, parent_tid=[9437], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9437 [pid 9427] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9427] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9437 attached [pid 9437] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9437] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9437] 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 9436 attached [pid 9436] set_robust_list(0x7f38e1b989e0, 24) = 0 ./strace-static-x86_64: Process 9435 attached [pid 9436] memfd_create("syzkaller", 0 [pid 9435] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9435] memfd_create("syzkaller", 0) = 3 [pid 9435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9436] <... memfd_create resumed>) = 3 [ 257.225337][ T9428] overlayfs: upper fs needs to support d_type. [ 257.234956][ T9428] overlayfs: upper fs does not support tmpfile. [ 257.246979][ T9428] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 257.257236][ T9428] overlayfs: failed to resolve './file0': -2 [pid 9436] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9437] <... mount resumed>) = 0 [pid 9437] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9437] chdir(".") = 0 [pid 9437] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9427] <... futex resumed>) = 0 [pid 9437] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9428] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9428] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9428] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9427] exit_group(0 [pid 9437] <... futex resumed>) = ? [pid 9428] <... futex resumed>) = ? [pid 9427] <... exit_group resumed>) = ? [pid 9437] +++ exited with 0 +++ [pid 9428] +++ exited with 0 +++ [pid 9427] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9427, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5000] umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] fstat(3, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] lstat("./252/file0", [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] unlink("./253/binderfs" [pid 4998] openat(AT_FDCWD, "./252/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... unlink resumed>) = 0 [pid 4998] <... openat resumed>) = 4 [pid 5000] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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("./252/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./252") = 0 [pid 9435] 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] mkdir("./253", 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) = 9438 ./strace-static-x86_64: Process 9438 attached [pid 9438] set_robust_list(0x555556b565e0, 24) = 0 [pid 9438] chdir("./253") = 0 [pid 9438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9438] setpgid(0, 0) = 0 [pid 9436] 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 9438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9438] write(3, "1000", 4) = 4 [pid 9438] close(3) = 0 [pid 9438] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9438] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9438] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9438] 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=[9439], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9439 [pid 9438] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9438] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9439 attached [pid 9439] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9439] memfd_create("syzkaller", 0) = 3 [pid 9439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9435] <... write resumed>) = 4194304 [pid 9435] munmap(0x7f38d9778000, 4194304) = 0 [pid 9435] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9435] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9436] <... write resumed>) = 4194304 [pid 9435] <... ioctl resumed>) = 0 [pid 9436] munmap(0x7f38d9778000, 4194304 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9435] close(3 [pid 5000] lstat("./253/file0", [pid 9435] <... close resumed>) = 0 [pid 9435] mkdir("./file0", 0777 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./253/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 [pid 9435] <... mkdir resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9435] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] rmdir("./253/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./253") = 0 [pid 5000] mkdir("./254", 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 9436] <... munmap resumed>) = 0 [pid 9436] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9436] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9436] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9436] mkdir("./file0", 0777 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9441 [pid 9436] <... mkdir resumed>) = 0 [pid 9436] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9441 attached [pid 9441] set_robust_list(0x555556b565e0, 24) = 0 [pid 9441] chdir("./254") = 0 [pid 9441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9441] setpgid(0, 0) = 0 [pid 9441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9441] write(3, "1000", 4) = 4 [pid 9441] close(3) = 0 [pid 9441] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9441] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9441] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9441] 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=[9443], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9443 [pid 9441] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9441] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9443 attached [pid 9443] set_robust_list(0x7f38e1b989e0, 24) = 0 [ 257.415101][ T9435] loop5: detected capacity change from 0 to 8192 [ 257.446586][ T9436] loop1: detected capacity change from 0 to 8192 [pid 9443] memfd_create("syzkaller", 0) = 3 [pid 9443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9439] 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 [ 257.455927][ T9435] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 257.474110][ T9435] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 257.487205][ T9436] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9443] 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 9439] <... write resumed>) = 4194304 [pid 9439] munmap(0x7f38d9778000, 4194304) = 0 [pid 9439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9439] ioctl(4, LOOP_SET_FD, 3 [pid 9443] <... write resumed>) = 4194304 [pid 9439] <... ioctl resumed>) = 0 [ 257.515611][ T9436] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 257.516523][ T9435] REISERFS (device loop5): using ordered data mode [ 257.538170][ T9436] REISERFS (device loop1): using ordered data mode [ 257.538372][ T9435] reiserfs: using flush barriers [ 257.552700][ T9439] loop0: detected capacity change from 0 to 8192 [ 257.555483][ T9436] reiserfs: using flush barriers [pid 9443] munmap(0x7f38d9778000, 4194304 [pid 9439] close(3 [pid 9443] <... munmap resumed>) = 0 [pid 9439] <... close resumed>) = 0 [pid 9439] mkdir("./file0", 0777) = 0 [pid 9439] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9443] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 257.562731][ T9435] 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 [ 257.565142][ T9436] 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 [ 257.580983][ T9435] REISERFS (device loop5): checking transaction log (loop5) [ 257.597728][ T9436] REISERFS (device loop1): checking transaction log (loop1) [pid 9443] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9443] close(3) = 0 [pid 9443] mkdir("./file0", 0777) = 0 [pid 9443] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9436] <... mount resumed>) = 0 [pid 9436] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9436] chdir("./file0") = 0 [pid 9436] ioctl(4, LOOP_CLR_FD) = 0 [pid 9436] close(4) = 0 [pid 9436] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 257.609053][ T9443] loop2: detected capacity change from 0 to 8192 [ 257.612660][ T9436] REISERFS (device loop1): Using r5 hash to sort names [ 257.625278][ T9436] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 257.625327][ T9439] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 257.638129][ T9436] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9436] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9433] <... futex resumed>) = 0 [pid 9433] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9436] <... futex resumed>) = 0 [pid 9433] <... futex resumed>) = 1 [pid 9436] mkdir("./file1", 000 [pid 9433] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9436] <... mkdir resumed>) = 0 [pid 9436] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9433] <... futex resumed>) = 0 [pid 9436] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9433] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9433] <... futex resumed>) = 0 [pid 9436] mkdir("./bus", 000 [pid 9433] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9436] <... mkdir resumed>) = 0 [pid 9436] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9436] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9433] <... futex resumed>) = 0 [pid 9433] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9436] <... futex resumed>) = 0 [pid 9433] <... futex resumed>) = 1 [pid 9436] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 257.651457][ T9435] REISERFS (device loop5): Using r5 hash to sort names [ 257.667088][ T9439] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 257.676896][ T9439] REISERFS (device loop0): using ordered data mode [ 257.683397][ T9439] reiserfs: using flush barriers [ 257.692282][ T9436] overlayfs: upper fs needs to support d_type. [ 257.692350][ T9435] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9433] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9435] <... mount resumed>) = 0 [pid 9433] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9435] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9433] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9435] <... openat resumed>) = 3 [pid 9433] <... futex resumed>) = 0 [pid 9435] chdir("./file0" [pid 9433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9435] <... chdir resumed>) = 0 [pid 9433] <... mmap resumed>) = 0x7f38d9b57000 [pid 9435] ioctl(4, LOOP_CLR_FD [pid 9433] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9435] <... ioctl resumed>) = 0 [pid 9433] <... mprotect resumed>) = 0 [pid 9435] close(4 [pid 9433] 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 9435] <... close resumed>) = 0 [pid 9435] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9433] <... clone resumed>, parent_tid=[9446], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9446 [pid 9435] <... futex resumed>) = 1 [pid 9434] <... futex resumed>) = 0 [pid 9433] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9435] mkdir("./file1", 000 [pid 9434] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9433] <... futex resumed>) = 0 [pid 9435] <... mkdir resumed>) = 0 [pid 9434] <... futex resumed>) = 0 [pid 9433] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9435] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9434] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9435] <... futex resumed>) = 0 [pid 9434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9435] mkdir("./bus", 000 [pid 9434] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9434] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9435] <... mkdir resumed>) = 0 [pid 9435] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9434] <... futex resumed>) = 0 [pid 9434] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9434] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 257.705457][ T9443] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 257.711315][ T9435] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 257.724311][ T9439] 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 [ 257.733764][ T9436] overlayfs: upper fs does not support tmpfile. [ 257.749979][ T9439] REISERFS (device loop0): checking transaction log (loop0) [pid 9435] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,"./strace-static-x86_64: Process 9446 attached [pid 9446] set_robust_list(0x7f38d9b779e0, 24 [pid 9439] <... mount resumed>) = 0 [pid 9446] <... set_robust_list resumed>) = 0 [pid 9439] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9446] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9439] <... openat resumed>) = 3 [pid 9446] 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 9439] chdir("./file0") = 0 [pid 9439] ioctl(4, LOOP_CLR_FD) = 0 [pid 9446] <... mount resumed>) = 0 [pid 9446] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9446] chdir(".") = 0 [pid 9446] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9433] <... futex resumed>) = 0 [pid 9446] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9439] close(4) = 0 [pid 9439] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9438] <... futex resumed>) = 0 [pid 9438] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9438] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9439] mkdir("./file1", 000) = 0 [pid 9439] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9438] <... futex resumed>) = 0 [pid 9438] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9438] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9439] mkdir("./bus", 000) = 0 [pid 9439] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9438] <... futex resumed>) = 0 [pid 9438] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 257.765400][ T9439] REISERFS (device loop0): Using r5 hash to sort names [ 257.773010][ T9439] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 257.773044][ T9435] overlayfs: upper fs needs to support d_type. [ 257.786159][ T9439] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 257.806507][ T9443] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9438] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9439] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9434] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9434] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9434] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9434] 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=[9447], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9447 [pid 9434] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9434] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9447 attached [ 257.816368][ T9443] REISERFS (device loop2): using ordered data mode [ 257.816993][ T9439] overlayfs: upper fs needs to support d_type. [ 257.822950][ T9443] reiserfs: using flush barriers [ 257.823664][ T9435] overlayfs: upper fs does not support tmpfile. [ 257.840555][ T9443] 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 [ 257.851232][ T9436] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9447] set_robust_list(0x7f38d9b779e0, 24 [pid 9438] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9438] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9438] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9438] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9438] 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=[9448], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9448 [pid 9438] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9438] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9447] <... set_robust_list resumed>) = 0 [pid 9447] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9447] 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 9448 attached ) = 0 [pid 9447] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9448] set_robust_list(0x7f38d9b779e0, 24 [pid 9447] chdir(".") = 0 [pid 9447] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9434] <... futex resumed>) = 0 [pid 9447] <... futex resumed>) = 1 [pid 9447] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9448] <... set_robust_list resumed>) = 0 [pid 9448] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9448] 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 [ 257.857084][ T9443] REISERFS (device loop2): checking transaction log (loop2) [ 257.872250][ T9435] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 257.879786][ T9443] REISERFS (device loop2): Using r5 hash to sort names [ 257.888552][ T9435] overlayfs: failed to resolve './file0': -2 [ 257.892859][ T9436] overlayfs: failed to resolve './file0': -2 [ 257.897911][ T9443] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9448] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9443] <... mount resumed>) = 0 [pid 9435] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9448] chdir("." [pid 9435] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9434] exit_group(0 [pid 9448] <... chdir resumed>) = 0 [pid 9435] <... futex resumed>) = ? [pid 9434] <... exit_group resumed>) = ? [pid 9448] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9435] +++ exited with 0 +++ [pid 9448] <... futex resumed>) = 1 [pid 9448] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9443] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9443] chdir("./file0") = 0 [pid 9443] ioctl(4, LOOP_CLR_FD) = 0 [pid 9443] close(4) = 0 [pid 9443] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9443] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9447] <... futex resumed>) = ? [pid 9447] +++ exited with 0 +++ [pid 9434] +++ exited with 0 +++ [pid 9438] <... futex resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9434, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5003] umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./252", 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("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./252/binderfs") = 0 [pid 5003] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9441] <... futex resumed>) = 0 [pid 9441] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9441] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9436] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9436] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9436] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9433] exit_group(0 [pid 9446] <... futex resumed>) = ? [pid 9436] <... futex resumed>) = ? [pid 9433] <... exit_group resumed>) = ? [pid 9446] +++ exited with 0 +++ [pid 9443] <... futex resumed>) = 0 [pid 9443] mkdir("./file1", 000) = 0 [pid 9436] +++ exited with 0 +++ [pid 9433] +++ exited with 0 +++ [pid 9443] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9433, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9443] <... futex resumed>) = 1 [pid 9441] <... futex resumed>) = 0 [pid 9443] mkdir("./bus", 000 [pid 9441] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9443] <... mkdir resumed>) = 0 [pid 9441] <... futex resumed>) = 0 [pid 9443] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9441] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9443] <... futex resumed>) = 0 [pid 9441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9443] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9441] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9441] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./252", 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("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./252/binderfs") = 0 [ 257.907271][ T9439] overlayfs: upper fs does not support tmpfile. [ 257.914171][ T9443] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 257.926541][ T9439] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 257.955920][ T9443] overlayfs: upper fs needs to support d_type. [pid 4999] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9441] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9441] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9441] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9441] 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=[9449], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9449 [pid 9441] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9441] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9449 attached [pid 9449] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9449] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9449] 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] <... umount2 resumed>) = 0 [pid 5003] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./252/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 5003] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9439] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9439] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9439] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./252/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9439] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9438] exit_group(0 [pid 5003] <... openat resumed>) = 4 [pid 9448] <... futex resumed>) = ? [pid 9439] <... futex resumed>) = ? [pid 9438] <... exit_group resumed>) = ? [pid 5003] fstat(4, [pid 9448] +++ exited with 0 +++ [pid 9439] +++ exited with 0 +++ [pid 9438] +++ exited with 0 +++ [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9438, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 5003] getdents64(4, [pid 4998] <... restart_syscall resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9443] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] close(4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./252/file0" [pid 9449] <... mount resumed>) = 0 [pid 9443] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] lstat("./252/file0", [pid 4998] umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... rmdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9449] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9443] <... futex resumed>) = 0 [pid 5003] getdents64(3, [pid 4998] openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5003] close(3 [pid 4998] fstat(3, [pid 5003] <... close resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] rmdir("./252" [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] <... rmdir resumed>) = 0 [pid 4998] lstat("./253/binderfs", [pid 9449] <... openat resumed>) = 4 [pid 9443] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] mkdir("./253", 0777 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9449] chdir("." [pid 5003] <... mkdir resumed>) = 0 [pid 4998] unlink("./253/binderfs" [pid 9449] <... chdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9449] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... openat resumed>) = 3 [pid 4998] <... unlink resumed>) = 0 [pid 9449] <... futex resumed>) = 1 [pid 9441] <... futex resumed>) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9449] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9441] exit_group(0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9449] <... futex resumed>) = ? [pid 9443] <... futex resumed>) = ? [pid 9441] <... exit_group resumed>) = ? [pid 5003] close(3 [pid 4999] openat(AT_FDCWD, "./252/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9443] +++ exited with 0 +++ [pid 5003] <... close resumed>) = 0 [pid 9449] +++ exited with 0 +++ [pid 9441] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9441, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5000] umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./254", 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("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./254/binderfs") = 0 [pid 5000] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... openat resumed>) = 4 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [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("./252/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9450 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./252") = 0 [pid 4999] mkdir("./253", 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) [ 257.982773][ T9443] overlayfs: upper fs does not support tmpfile. [ 257.994028][ T9439] overlayfs: failed to resolve './file0': -2 [ 258.002964][ T9443] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 258.025852][ T9443] overlayfs: failed to resolve './file0': -2 [pid 4999] close(3) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9451 ./strace-static-x86_64: Process 9451 attached ./strace-static-x86_64: Process 9450 attached [pid 9450] set_robust_list(0x555556b565e0, 24) = 0 [pid 9450] chdir("./253") = 0 [pid 9451] set_robust_list(0x555556b565e0, 24) = 0 [pid 9450] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9450] setpgid(0, 0) = 0 [pid 9450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9451] chdir("./253") = 0 [pid 9451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9450] <... openat resumed>) = 3 [pid 9450] write(3, "1000", 4 [pid 9451] <... prctl resumed>) = 0 [pid 9451] setpgid(0, 0 [pid 9450] <... write resumed>) = 4 [pid 9450] close(3) = 0 [pid 9450] symlink("/dev/binderfs", "./binderfs" [pid 9451] <... setpgid resumed>) = 0 [pid 9450] <... symlink resumed>) = 0 [pid 9450] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9451] <... openat resumed>) = 3 [pid 9450] <... mmap resumed>) = 0x7f38e1b78000 [pid 9451] write(3, "1000", 4) = 4 [pid 9451] close(3) = 0 [pid 9451] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9451] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9451] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9451] 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 9450] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9451] <... clone resumed>, parent_tid=[9452], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9452 [pid 9451] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] <... mprotect resumed>) = 0 [pid 9451] <... futex resumed>) = 0 [pid 9450] 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 9451] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9453 attached [pid 9453] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9450] <... clone resumed>, parent_tid=[9453], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9453 [pid 9450] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9450] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9453] memfd_create("syzkaller", 0) = 3 [pid 9453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9452 attached [pid 9452] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9452] memfd_create("syzkaller", 0) = 3 [pid 9452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./254/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./254/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("./254/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5000] close(3 [pid 4998] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./253/file0", [pid 5000] <... close resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] rmdir("./254" [pid 4998] openat(AT_FDCWD, "./253/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 5000] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4 [pid 5000] mkdir("./255", 0777) = 0 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./253/file0" [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] <... rmdir resumed>) = 0 [pid 9452] 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] <... openat resumed>) = 3 [pid 4998] getdents64(3, [pid 9453] 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] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 4998] close(3 [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9454 ./strace-static-x86_64: Process 9454 attached [pid 9454] set_robust_list(0x555556b565e0, 24) = 0 [pid 9454] chdir("./255") = 0 [pid 9454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9454] setpgid(0, 0) = 0 [pid 9454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9454] write(3, "1000", 4) = 4 [pid 9454] close(3 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./253" [pid 9454] <... close resumed>) = 0 [pid 9454] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./254", 0777 [pid 9454] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9454] <... futex resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4998] close(3 [pid 9454] <... mmap resumed>) = 0x7f38e1b78000 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9454] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9455 [pid 9454] <... mprotect resumed>) = 0 [pid 9454] 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=[9456], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9456 [pid 9454] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9454] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9453] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 9456 attached ./strace-static-x86_64: Process 9455 attached [pid 9452] <... write resumed>) = 4194304 [pid 9453] munmap(0x7f38d9778000, 4194304 [pid 9456] set_robust_list(0x7f38e1b989e0, 24 [pid 9455] set_robust_list(0x555556b565e0, 24 [pid 9452] munmap(0x7f38d9778000, 4194304 [pid 9456] <... set_robust_list resumed>) = 0 [pid 9455] <... set_robust_list resumed>) = 0 [pid 9453] <... munmap resumed>) = 0 [pid 9453] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9455] chdir("./254" [pid 9453] <... openat resumed>) = 4 [pid 9453] ioctl(4, LOOP_SET_FD, 3 [pid 9456] memfd_create("syzkaller", 0 [pid 9455] <... chdir resumed>) = 0 [pid 9452] <... munmap resumed>) = 0 [pid 9455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9455] setpgid(0, 0) = 0 [pid 9455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9455] write(3, "1000", 4) = 4 [pid 9455] close(3 [pid 9456] <... memfd_create resumed>) = 3 [pid 9455] <... close resumed>) = 0 [pid 9453] <... ioctl resumed>) = 0 [pid 9452] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9455] symlink("/dev/binderfs", "./binderfs" [pid 9453] close(3 [pid 9455] <... symlink resumed>) = 0 [pid 9453] <... close resumed>) = 0 [pid 9452] <... openat resumed>) = 4 [pid 9455] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9453] mkdir("./file0", 0777 [pid 9455] <... futex resumed>) = 0 [pid 9453] <... mkdir resumed>) = 0 [pid 9452] ioctl(4, LOOP_SET_FD, 3 [pid 9455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9453] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9455] <... mmap resumed>) = 0x7f38e1b78000 [pid 9455] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9455] 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=[9458], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9458 [pid 9455] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9452] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 9458 attached [pid 9456] 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 9452] close(3 [pid 9458] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9452] <... close resumed>) = 0 [pid 9452] mkdir("./file0", 0777 [pid 9458] memfd_create("syzkaller", 0) = 3 [pid 9458] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9452] <... mkdir resumed>) = 0 [ 258.217356][ T9453] loop5: detected capacity change from 0 to 8192 [ 258.231094][ T9452] loop1: detected capacity change from 0 to 8192 [ 258.244117][ T9453] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 258.258111][ T9453] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 258.258536][ T9452] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 258.267604][ T9453] REISERFS (device loop5): using ordered data mode [ 258.287636][ T9453] reiserfs: using flush barriers [ 258.293667][ T9452] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 258.295509][ T9453] 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 [ 258.303185][ T9452] REISERFS (device loop1): using ordered data mode [ 258.325912][ T9452] reiserfs: using flush barriers [ 258.332054][ T9452] 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 [ 258.348728][ T9453] REISERFS (device loop5): checking transaction log (loop5) [ 258.357018][ T9452] REISERFS (device loop1): checking transaction log (loop1) [pid 9452] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9458] 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 9456] <... write resumed>) = 4194304 [pid 9453] <... mount resumed>) = 0 [pid 9453] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9456] munmap(0x7f38d9778000, 4194304) = 0 [pid 9453] <... openat resumed>) = 3 [pid 9456] openat(AT_FDCWD, "/dev/loop2", O_RDWR [ 258.364499][ T9453] REISERFS (device loop5): Using r5 hash to sort names [ 258.371641][ T9453] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 258.385193][ T9453] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 258.386278][ T9452] REISERFS (device loop1): Using r5 hash to sort names [ 258.402912][ T9452] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9453] chdir("./file0" [pid 9458] <... write resumed>) = 4194304 [pid 9456] <... openat resumed>) = 4 [pid 9453] <... chdir resumed>) = 0 [pid 9456] ioctl(4, LOOP_SET_FD, 3 [pid 9453] ioctl(4, LOOP_CLR_FD [pid 9458] munmap(0x7f38d9778000, 4194304 [pid 9453] <... ioctl resumed>) = 0 [pid 9452] <... mount resumed>) = 0 [pid 9452] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9452] chdir("./file0") = 0 [pid 9452] ioctl(4, LOOP_CLR_FD) = 0 [pid 9452] close(4 [pid 9458] <... munmap resumed>) = 0 [pid 9456] <... ioctl resumed>) = 0 [pid 9453] close(4 [pid 9452] <... close resumed>) = 0 [pid 9453] <... close resumed>) = 0 [pid 9453] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9450] <... futex resumed>) = 0 [pid 9453] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9450] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9453] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9453] mkdir("./file1", 000 [pid 9450] <... futex resumed>) = 0 [pid 9453] <... mkdir resumed>) = 0 [pid 9450] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9453] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9453] <... futex resumed>) = 0 [pid 9450] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9453] mkdir("./bus", 000 [pid 9450] <... futex resumed>) = 0 [pid 9453] <... mkdir resumed>) = 0 [pid 9450] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9453] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9453] <... futex resumed>) = 0 [pid 9450] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9453] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9450] <... futex resumed>) = 0 [pid 9458] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9450] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9458] <... openat resumed>) = 4 [pid 9458] ioctl(4, LOOP_SET_FD, 3 [pid 9456] close(3) = 0 [pid 9456] mkdir("./file0", 0777) = 0 [pid 9456] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9452] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9451] <... futex resumed>) = 0 [pid 9452] mkdir("./file1", 000 [pid 9451] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9452] <... mkdir resumed>) = 0 [pid 9451] <... futex resumed>) = 0 [pid 9452] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9451] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9452] <... futex resumed>) = 0 [pid 9451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9452] mkdir("./bus", 000 [pid 9451] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9452] <... mkdir resumed>) = 0 [pid 9451] <... futex resumed>) = 0 [pid 9452] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9451] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9452] <... futex resumed>) = 0 [pid 9451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9452] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9451] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 258.416843][ T9452] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 258.424121][ T9456] loop2: detected capacity change from 0 to 8192 [ 258.441363][ T9453] overlayfs: upper fs needs to support d_type. [ 258.452626][ T9458] loop0: detected capacity change from 0 to 8192 [ 258.459355][ T9453] overlayfs: upper fs does not support tmpfile. [pid 9451] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9458] <... ioctl resumed>) = 0 [pid 9458] close(3) = 0 [pid 9458] mkdir("./file0", 0777) = 0 [ 258.466395][ T9452] overlayfs: upper fs needs to support d_type. [ 258.472802][ T9458] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 258.486912][ T9458] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 258.487458][ T9453] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 258.497439][ T9458] REISERFS (device loop0): using ordered data mode [pid 9458] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9450] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9451] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9451] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9451] <... futex resumed>) = 0 [pid 9450] <... futex resumed>) = 0 [pid 9450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9450] <... mmap resumed>) = 0x7f38d9b57000 [pid 9451] <... mmap resumed>) = 0x7f38d9b57000 [pid 9450] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9451] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9450] <... mprotect resumed>) = 0 [pid 9451] <... mprotect resumed>) = 0 [pid 9451] 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 9450] 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 9451] <... clone resumed>, parent_tid=[9462], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9462 [pid 9450] <... clone resumed>, parent_tid=[9463], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9463 [pid 9451] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9451] <... futex resumed>) = 0 [pid 9450] <... futex resumed>) = 0 [pid 9451] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9450] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9462 attached [pid 9462] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9452] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 9463 attached [pid 9463] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9463] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9463] 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 9462] mkdir(".", 0777 [pid 9452] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9463] <... mount resumed>) = 0 [pid 9462] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9452] <... futex resumed>) = 0 [ 258.504077][ T9456] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 258.523911][ T9452] overlayfs: upper fs does not support tmpfile. [ 258.532245][ T9452] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 258.534331][ T9453] overlayfs: failed to resolve './file0': -2 [ 258.540773][ T9452] overlayfs: failed to resolve './file0': -2 [ 258.552377][ T9456] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 258.562071][ T9456] REISERFS (device loop2): using ordered data mode [pid 9463] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9463] chdir(".") = 0 [pid 9463] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9450] <... futex resumed>) = 0 [pid 9463] <... futex resumed>) = 1 [pid 9462] 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 9452] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9463] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9462] <... mount resumed>) = 0 [pid 9462] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9462] chdir(".") = 0 [pid 9462] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9451] <... futex resumed>) = 0 [pid 9462] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9451] exit_group(0 [pid 9462] <... futex resumed>) = ? [pid 9452] <... futex resumed>) = ? [pid 9451] <... exit_group resumed>) = ? [pid 9462] +++ exited with 0 +++ [pid 9452] +++ exited with 0 +++ [pid 9451] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9451, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 258.568859][ T9456] reiserfs: using flush barriers [ 258.575176][ T9456] 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 [ 258.586559][ T9458] reiserfs: using flush barriers [ 258.591980][ T9456] REISERFS (device loop2): checking transaction log (loop2) [ 258.606447][ T9456] REISERFS (device loop2): Using r5 hash to sort names [pid 4999] getdents64(3, [pid 9453] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9453] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9453] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9453] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9450] exit_group(0 [pid 4999] lstat("./253/binderfs", [pid 9463] <... futex resumed>) = ? [pid 9453] <... futex resumed>) = ? [pid 9450] <... exit_group resumed>) = ? [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9463] +++ exited with 0 +++ [pid 9453] +++ exited with 0 +++ [pid 9450] +++ exited with 0 +++ [pid 4999] unlink("./253/binderfs" [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9450, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9456] <... mount resumed>) = 0 [pid 5003] <... openat resumed>) = 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("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./253/binderfs") = 0 [ 258.606629][ T9458] 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 [ 258.613614][ T9456] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 258.643308][ T9456] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 258.653043][ T9458] REISERFS (device loop0): checking transaction log (loop0) [pid 5003] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9456] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9456] chdir("./file0") = 0 [pid 9456] ioctl(4, LOOP_CLR_FD) = 0 [pid 9456] close(4) = 0 [pid 9456] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9456] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9454] <... futex resumed>) = 0 [pid 9454] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9456] <... futex resumed>) = 0 [pid 9454] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9456] mkdir("./file1", 000) = 0 [pid 9456] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9454] <... futex resumed>) = 0 [pid 9456] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9454] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9456] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9454] <... futex resumed>) = 0 [pid 9456] mkdir("./bus", 000 [pid 9454] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9456] <... mkdir resumed>) = 0 [pid 9456] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9454] <... futex resumed>) = 0 [pid 9456] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9454] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9456] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9454] <... futex resumed>) = 0 [pid 9456] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 258.669949][ T9458] REISERFS (device loop0): Using r5 hash to sort names [ 258.699096][ T9458] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9454] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./253/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./253/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("./253/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./253") = 0 [pid 4999] mkdir("./254", 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) = 9464 [pid 5003] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9464 attached [pid 9464] set_robust_list(0x555556b565e0, 24) = 0 [pid 9464] chdir("./254") = 0 [pid 9464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9464] setpgid(0, 0) = 0 [pid 9464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9464] write(3, "1000", 4) = 4 [pid 9464] close(3) = 0 [pid 9464] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9464] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9464] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9464] 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=[9465], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9465 [pid 9464] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9464] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9465 attached [pid 9465] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9465] memfd_create("syzkaller", 0) = 3 [pid 9465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./253/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9458] <... mount resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./253/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9458] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5003] <... openat resumed>) = 4 [pid 9458] chdir("./file0") = 0 [pid 9458] ioctl(4, LOOP_CLR_FD) = 0 [pid 9458] close(4 [pid 5003] fstat(4, [pid 9458] <... close resumed>) = 0 [pid 9458] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9458] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9455] <... futex resumed>) = 0 [pid 9455] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9455] <... futex resumed>) = 1 [pid 9458] <... futex resumed>) = 0 [pid 9458] mkdir("./file1", 000 [pid 9455] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] getdents64(4, [pid 9458] <... mkdir resumed>) = 0 [pid 9458] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9458] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9455] <... futex resumed>) = 0 [pid 9458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9455] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(4, [pid 9455] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9455] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] close(4) = 0 [pid 5003] rmdir("./253/file0" [pid 9458] mkdir("./bus", 000) = 0 [pid 9458] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9455] <... futex resumed>) = 0 [pid 9455] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9458] <... futex resumed>) = 1 [pid 9458] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 5003] <... rmdir resumed>) = 0 [ 258.717167][ T9456] overlayfs: upper fs needs to support d_type. [ 258.723371][ T9456] overlayfs: upper fs does not support tmpfile. [ 258.730040][ T9458] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 258.738725][ T9456] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 258.751919][ T9456] overlayfs: failed to resolve './file0': -2 [pid 5003] getdents64(3, [pid 9454] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9454] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] close(3 [pid 9454] <... futex resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 9454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] rmdir("./253" [pid 9454] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] <... rmdir resumed>) = 0 [pid 9454] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] mkdir("./254", 0777 [pid 9454] <... mprotect resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 9454] 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] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9454] <... clone resumed>, parent_tid=[9466], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9466 [pid 5003] <... openat resumed>) = 3 [pid 9454] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9454] <... futex resumed>) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9454] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] close(3) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9467 ./strace-static-x86_64: Process 9466 attached [pid 9466] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9466] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9466] 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 9456] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9456] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9456] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9467 attached [pid 9467] set_robust_list(0x555556b565e0, 24) = 0 [pid 9467] chdir("./254") = 0 [pid 9467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9467] setpgid(0, 0) = 0 [pid 9466] <... mount resumed>) = 0 [pid 9466] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9455] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9455] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9455] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9455] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9455] 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=[9468], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9468 [pid 9467] <... openat resumed>) = 3 [pid 9455] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9466] <... openat resumed>) = 4 [pid 9455] <... futex resumed>) = 0 [pid 9466] chdir("." [pid 9455] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9466] <... chdir resumed>) = 0 [pid 9466] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9454] <... futex resumed>) = 0 [ 258.765785][ T9458] overlayfs: upper fs needs to support d_type. [ 258.781785][ T9458] overlayfs: upper fs does not support tmpfile. [pid 9467] write(3, "1000", 4 [pid 9466] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9465] 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 9454] exit_group(0./strace-static-x86_64: Process 9468 attached [pid 9468] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9468] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9468] 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 9468] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9468] chdir(".") = 0 [pid 9468] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9455] <... futex resumed>) = 0 [pid 9468] <... futex resumed>) = 1 [pid 9466] <... futex resumed>) = ? [pid 9454] <... exit_group resumed>) = ? [pid 9466] +++ exited with 0 +++ [pid 9456] <... futex resumed>) = ? [pid 9456] +++ exited with 0 +++ [pid 9468] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9454] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9454, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 9467] <... write resumed>) = 4 [pid 5000] umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9467] close(3 [pid 5000] openat(AT_FDCWD, "./255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9467] <... close resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 9467] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9467] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(3, [pid 9467] <... futex resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5000] umount2("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9467] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] lstat("./255/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9467] <... mprotect resumed>) = 0 [pid 5000] unlink("./255/binderfs" [pid 9467] 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 5000] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9467] <... clone resumed>, parent_tid=[9469], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9469 [pid 9467] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9467] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9469 attached [pid 9469] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9469] memfd_create("syzkaller", 0) = 3 [pid 9469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9458] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9458] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9455] exit_group(0 [pid 9468] <... futex resumed>) = ? [pid 9455] <... exit_group resumed>) = ? [pid 9468] +++ exited with 0 +++ [pid 9458] <... futex resumed>) = ? [pid 9458] +++ exited with 0 +++ [pid 9455] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9455, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./254", 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("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./254/binderfs") = 0 [pid 4998] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9465] <... write resumed>) = 4194304 [pid 9465] munmap(0x7f38d9778000, 4194304) = 0 [pid 9465] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 258.820001][ T9458] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 258.847880][ T9458] overlayfs: failed to resolve './file0': -2 [pid 9465] ioctl(4, LOOP_SET_FD, 3 [pid 9469] 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 9465] <... ioctl resumed>) = 0 [pid 9465] close(3) = 0 [pid 9465] mkdir("./file0", 0777) = 0 [pid 9465] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./255/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./255/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("./255/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./255") = 0 [pid 5000] mkdir("./256", 0777 [pid 9469] <... write resumed>) = 4194304 [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 9469] munmap(0x7f38d9778000, 4194304 [pid 4998] <... umount2 resumed>) = 0 [ 258.898602][ T9465] loop1: detected capacity change from 0 to 8192 [ 258.931240][ T9465] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5000] close(3 [pid 9469] <... munmap resumed>) = 0 [pid 4998] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9471 [pid 9469] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9469] <... openat resumed>) = 4 [pid 4998] lstat("./254/file0", [pid 9469] ioctl(4, LOOP_SET_FD, 3 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9471 attached [pid 9471] set_robust_list(0x555556b565e0, 24) = 0 [pid 9471] chdir("./256") = 0 [pid 9471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9471] setpgid(0, 0) = 0 [pid 4998] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9469] <... ioctl resumed>) = 0 [pid 9471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9471] write(3, "1000", 4) = 4 [pid 9471] close(3) = 0 [pid 9471] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9471] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9471] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9471] 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=[9472], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9472 [pid 9471] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9471] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9472 attached [pid 9472] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9472] memfd_create("syzkaller", 0) = 3 [pid 9472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9469] close(3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9469] <... close resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./254/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9469] mkdir("./file0", 0777 [pid 4998] <... openat resumed>) = 4 [ 258.962517][ T9465] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 258.973392][ T9465] REISERFS (device loop1): using ordered data mode [ 258.980104][ T9465] reiserfs: using flush barriers [ 258.986558][ T9469] loop5: detected capacity change from 0 to 8192 [ 258.992988][ T9465] 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 9469] <... mkdir resumed>) = 0 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9469] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4 [pid 9472] 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] <... close resumed>) = 0 [pid 4998] rmdir("./254/file0") = 0 [ 259.010229][ T9465] REISERFS (device loop1): checking transaction log (loop1) [ 259.019856][ T9465] REISERFS (device loop1): Using r5 hash to sort names [ 259.027561][ T9469] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 259.040834][ T9465] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 9472] <... write resumed>) = 4194304 [pid 9472] munmap(0x7f38d9778000, 4194304) = 0 [pid 9472] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9472] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9465] <... mount resumed>) = 0 [pid 4998] rmdir("./254" [pid 9472] close(3) = 0 [pid 9472] mkdir("./file0", 0777) = 0 [pid 9465] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9465] chdir("./file0") = 0 [pid 9465] ioctl(4, LOOP_CLR_FD) = 0 [pid 9472] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9465] close(4 [pid 4998] <... rmdir resumed>) = 0 [pid 9465] <... close resumed>) = 0 [pid 9465] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9465] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] mkdir("./255", 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) = 9474 [pid 9464] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9474 attached [ 259.054690][ T9469] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 259.064300][ T9469] REISERFS (device loop5): using ordered data mode [ 259.071335][ T9465] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 259.079640][ T9472] loop2: detected capacity change from 0 to 8192 [ 259.080700][ T9469] reiserfs: using flush barriers [ 259.093292][ T9469] 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 9464] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9465] <... futex resumed>) = 0 [pid 9464] <... futex resumed>) = 1 [pid 9474] set_robust_list(0x555556b565e0, 24) = 0 [pid 9465] mkdir("./file1", 000 [pid 9464] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9465] <... mkdir resumed>) = 0 [pid 9465] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9464] <... futex resumed>) = 0 [pid 9465] mkdir("./bus", 000 [pid 9464] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] chdir("./255" [pid 9465] <... mkdir resumed>) = 0 [pid 9464] <... futex resumed>) = 0 [pid 9465] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9464] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9465] <... futex resumed>) = 0 [pid 9464] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9465] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 259.110327][ T9469] REISERFS (device loop5): checking transaction log (loop5) [ 259.119031][ T9472] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 259.120263][ T9469] REISERFS (device loop5): Using r5 hash to sort names [ 259.139771][ T9469] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 259.145411][ T9465] overlayfs: upper fs needs to support d_type. [pid 9464] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... chdir resumed>) = 0 [pid 9464] <... futex resumed>) = 0 [pid 9464] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9469] <... mount resumed>) = 0 [pid 9474] <... prctl resumed>) = 0 [pid 9469] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9474] setpgid(0, 0) = 0 [pid 9469] <... openat resumed>) = 3 [pid 9474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9469] chdir("./file0" [pid 9474] <... openat resumed>) = 3 [pid 9469] <... chdir resumed>) = 0 [pid 9474] write(3, "1000", 4 [pid 9469] ioctl(4, LOOP_CLR_FD [pid 9474] <... write resumed>) = 4 [pid 9469] <... ioctl resumed>) = 0 [pid 9474] close(3 [pid 9469] close(4 [pid 9474] <... close resumed>) = 0 [pid 9469] <... close resumed>) = 0 [pid 9474] symlink("/dev/binderfs", "./binderfs" [pid 9469] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... symlink resumed>) = 0 [pid 9469] <... futex resumed>) = 1 [pid 9467] <... futex resumed>) = 0 [pid 9474] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9469] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9467] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... futex resumed>) = 0 [pid 9469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9467] <... futex resumed>) = 0 [pid 9474] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9469] mkdir("./file1", 000 [pid 9467] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9474] <... mmap resumed>) = 0x7f38e1b78000 [pid 9469] <... mkdir resumed>) = 0 [pid 9474] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9469] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... mprotect resumed>) = 0 [pid 9469] <... futex resumed>) = 1 [pid 9467] <... futex resumed>) = 0 [pid 9474] 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 9469] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9467] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9467] <... futex resumed>) = 0 [pid 9474] <... clone resumed>, parent_tid=[9476], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9476 [pid 9469] mkdir("./bus", 000 [pid 9467] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9474] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9469] <... mkdir resumed>) = 0 [pid 9465] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9474] <... futex resumed>) = 0 [pid 9469] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9469] <... futex resumed>) = 1 [pid 9467] <... futex resumed>) = 0 [pid 9464] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9469] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9467] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9464] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9467] <... futex resumed>) = 0 [pid 9464] <... futex resumed>) = 0 [ 259.152541][ T9469] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 259.161103][ T9472] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 259.168416][ T9465] overlayfs: upper fs does not support tmpfile. [ 259.184536][ T9465] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 259.192667][ T9465] overlayfs: failed to resolve './file0': -2 [ 259.206282][ T9472] REISERFS (device loop2): using ordered data mode [pid 9469] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9467] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9465] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9476 attached [pid 9465] <... futex resumed>) = 0 [pid 9476] set_robust_list(0x7f38e1b989e0, 24 [pid 9465] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9476] <... set_robust_list resumed>) = 0 [pid 9476] memfd_create("syzkaller", 0) = 3 [pid 9476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9464] <... mmap resumed>) = 0x7f38d9b57000 [pid 9464] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9464] 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 9477 attached , parent_tid=[9477], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9477 [pid 9464] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9464] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9477] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9477] mkdir(".", 0777) = -1 EEXIST (File exists) [ 259.212917][ T9472] reiserfs: using flush barriers [ 259.214473][ T9469] overlayfs: upper fs needs to support d_type. [ 259.225464][ T9472] 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 [ 259.225924][ T9469] overlayfs: upper fs does not support tmpfile. [pid 9477] 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 9477] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9477] chdir("." [pid 9476] 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 9467] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9477] <... chdir resumed>) = 0 [pid 9477] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9464] <... futex resumed>) = 0 [pid 9464] exit_group(0) = ? [pid 9465] <... futex resumed>) = ? [pid 9465] +++ exited with 0 +++ [pid 9477] +++ exited with 0 +++ [pid 9464] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9464, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 9467] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9467] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9476] <... write resumed>) = 4194304 [pid 9467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] openat(AT_FDCWD, "./254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9467] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... openat resumed>) = 3 [pid 9467] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] fstat(3, [pid 9467] <... mprotect resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9469] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9467] 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, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9467] <... clone resumed>, parent_tid=[9478], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9478 [pid 4999] umount2("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9467] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9467] <... futex resumed>) = 0 [pid 4999] lstat("./254/binderfs", [pid 9467] 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 [ 259.261026][ T9469] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 259.268844][ T9472] REISERFS (device loop2): checking transaction log (loop2) [ 259.270324][ T9469] overlayfs: failed to resolve './file0': -2 [ 259.287302][ T9472] REISERFS (device loop2): Using r5 hash to sort names [ 259.294688][ T9472] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 4999] unlink("./254/binderfs") = 0 [pid 9476] munmap(0x7f38d9778000, 4194304 [pid 4999] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9478 attached [pid 9476] <... munmap resumed>) = 0 [pid 9472] <... mount resumed>) = 0 [pid 9469] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9478] set_robust_list(0x7f38d9b779e0, 24 [pid 9476] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9472] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9469] <... futex resumed>) = 0 [pid 9478] <... set_robust_list resumed>) = 0 [pid 9476] <... openat resumed>) = 4 [pid 9472] <... openat resumed>) = 3 [pid 9469] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9478] mkdir(".", 0777 [pid 9476] ioctl(4, LOOP_SET_FD, 3 [pid 9472] chdir("./file0" [pid 9478] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9478] 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 9472] <... chdir resumed>) = 0 [pid 9478] <... mount resumed>) = 0 [pid 9476] <... ioctl resumed>) = 0 [pid 9472] ioctl(4, LOOP_CLR_FD [pid 9478] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9472] <... ioctl resumed>) = 0 [pid 9478] <... openat resumed>) = 4 [pid 9476] close(3 [pid 9472] close(4 [pid 9478] chdir(".") = 0 [pid 9476] <... close resumed>) = 0 [pid 9472] <... close resumed>) = 0 [pid 9478] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9476] mkdir("./file0", 0777 [pid 9472] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9478] <... futex resumed>) = 1 [pid 9467] <... futex resumed>) = 0 [pid 9478] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9476] <... mkdir resumed>) = 0 [pid 9472] <... futex resumed>) = 1 [pid 9471] <... futex resumed>) = 0 [pid 9467] exit_group(0 [pid 9478] <... futex resumed>) = ? [pid 9476] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9472] mkdir("./file1", 000 [pid 9471] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9469] <... futex resumed>) = ? [pid 9467] <... exit_group resumed>) = ? [pid 9478] +++ exited with 0 +++ [pid 9472] <... mkdir resumed>) = 0 [pid 9471] <... futex resumed>) = 0 [pid 9469] +++ exited with 0 +++ [pid 4999] <... umount2 resumed>) = 0 [pid 9472] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9472] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./254/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./254/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9467] +++ exited with 0 +++ [pid 4999] <... openat resumed>) = 4 [pid 9471] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9467, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 9471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9471] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9472] <... futex resumed>) = 0 [pid 9471] <... futex resumed>) = 1 [pid 9472] mkdir("./bus", 000 [pid 5003] umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(4, [pid 9471] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9472] <... mkdir resumed>) = 0 [pid 9472] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9472] <... futex resumed>) = 0 [pid 9471] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] openat(AT_FDCWD, "./254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9472] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9471] <... futex resumed>) = 0 [pid 4999] getdents64(4, [pid 9471] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... openat resumed>) = 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("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./254/binderfs") = 0 [ 259.307927][ T9472] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 259.319674][ T9476] loop0: detected capacity change from 0 to 8192 [ 259.349948][ T9472] overlayfs: upper fs needs to support d_type. [pid 5003] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./254/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./254") = 0 [pid 4999] mkdir("./255", 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 [ 259.361365][ T9476] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 259.368782][ T9472] overlayfs: upper fs does not support tmpfile. [ 259.381617][ T9472] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 259.390238][ T9472] overlayfs: failed to resolve './file0': -2 [ 259.392945][ T9476] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 259.406342][ T9476] REISERFS (device loop0): using ordered data mode [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9480 attached [pid 9471] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9472] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9480 [pid 9471] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9480] set_robust_list(0x555556b565e0, 24 [pid 9472] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9471] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 9480] <... set_robust_list resumed>) = 0 [pid 9472] <... futex resumed>) = 0 [pid 9471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9480] chdir("./255" [pid 9471] <... mmap resumed>) = 0x7f38d9b57000 [pid 9472] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9480] <... chdir resumed>) = 0 [pid 9471] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9471] <... mprotect resumed>) = 0 [pid 5003] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9480] <... prctl resumed>) = 0 [pid 9471] 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 9480] setpgid(0, 0) = 0 [pid 9471] <... clone resumed>, parent_tid=[9481], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9481 [pid 9480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9471] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9480] <... openat resumed>) = 3 [pid 9471] <... futex resumed>) = 0 [pid 9480] write(3, "1000", 4 [pid 9471] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9480] <... write resumed>) = 4 [pid 9480] close(3) = 0 [pid 9480] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9480] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9480] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 9481 attached [pid 9480] 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 9481] set_robust_list(0x7f38d9b779e0, 24 [pid 9480] <... clone resumed>, parent_tid=[9482], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9482 [pid 9480] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9480] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./254/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./254/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, ./strace-static-x86_64: Process 9482 attached [pid 9481] <... set_robust_list resumed>) = 0 [pid 5003] <... fstat resumed>{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("./254/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./254") = 0 [ 259.417678][ T9476] reiserfs: using flush barriers [ 259.424484][ T9476] 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 [ 259.443593][ T9476] REISERFS (device loop0): checking transaction log (loop0) [ 259.452158][ T9476] REISERFS (device loop0): Using r5 hash to sort names [pid 5003] mkdir("./255", 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 9481] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9482] set_robust_list(0x7f38e1b989e0, 24 [pid 9481] 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 9482] <... set_robust_list resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9483 ./strace-static-x86_64: Process 9483 attached [pid 9483] set_robust_list(0x555556b565e0, 24) = 0 [pid 9483] chdir("./255") = 0 [pid 9483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9483] setpgid(0, 0) = 0 [pid 9483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9482] memfd_create("syzkaller", 0 [pid 9483] <... openat resumed>) = 3 [pid 9483] write(3, "1000", 4) = 4 [pid 9483] close(3) = 0 [pid 9483] symlink("/dev/binderfs", "./binderfs" [pid 9482] <... memfd_create resumed>) = 3 [pid 9482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9483] <... symlink resumed>) = 0 [pid 9483] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9483] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9483] 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=[9484], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9484 [pid 9483] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9483] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9484 attached [pid 9484] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9484] memfd_create("syzkaller", 0) = 3 [pid 9484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9481] <... mount resumed>) = 0 [pid 9481] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9481] chdir(".") = 0 [pid 9481] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9471] <... futex resumed>) = 0 [pid 9471] exit_group(0 [pid 9481] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 9471] <... exit_group resumed>) = ? [pid 9472] <... futex resumed>) = ? [pid 9481] +++ exited with 0 +++ [pid 9472] +++ exited with 0 +++ [pid 9471] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9471, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5000] umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./256", 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("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./256/binderfs") = 0 [ 259.459387][ T9476] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5000] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9484] 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 9482] 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 9484] <... write resumed>) = 4194304 [pid 9484] munmap(0x7f38d9778000, 4194304) = 0 [pid 9484] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9484] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9484] close(3) = 0 [pid 9484] mkdir("./file0", 0777) = 0 [pid 9484] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9476] <... mount resumed>) = 0 [pid 9476] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9476] chdir("./file0") = 0 [pid 9476] ioctl(4, LOOP_CLR_FD) = 0 [pid 9476] close(4) = 0 [pid 9476] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... futex resumed>) = 0 [pid 9474] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9474] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9476] <... futex resumed>) = 1 [pid 9476] mkdir("./file1", 000) = 0 [pid 9476] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... futex resumed>) = 0 [pid 9474] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9474] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9476] <... futex resumed>) = 1 [pid 9476] mkdir("./bus", 000) = 0 [pid 9476] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9474] <... futex resumed>) = 0 [pid 9474] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9474] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9476] <... futex resumed>) = 1 [ 259.531195][ T9476] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 259.558824][ T9484] loop5: detected capacity change from 0 to 8192 [pid 9476] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9482] <... write resumed>) = 4194304 [ 259.576613][ T9484] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 259.590670][ T9476] overlayfs: upper fs needs to support d_type. [ 259.597513][ T9476] overlayfs: upper fs does not support tmpfile. [ 259.604548][ T9484] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 259.611484][ T9476] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 259.614838][ T9484] REISERFS (device loop5): using ordered data mode [pid 5000] lstat("./256/file0", [pid 9482] munmap(0x7f38d9778000, 4194304 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9474] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9474] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9474] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9474] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9474] 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=[9486], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9486 [pid 9474] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9474] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9486 attached [pid 9482] <... munmap resumed>) = 0 [pid 5000] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9482] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9482] <... openat resumed>) = 4 [pid 5000] openat(AT_FDCWD, "./256/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9482] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... openat resumed>) = 4 [pid 9486] set_robust_list(0x7f38d9b779e0, 24 [pid 5000] fstat(4, [pid 9482] <... ioctl resumed>) = 0 [pid 9482] close(3) = 0 [pid 9482] mkdir("./file0", 0777) = 0 [pid 9482] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9476] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9476] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9476] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... fstat resumed>{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("./256/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 9486] <... set_robust_list resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9486] mkdir(".", 0777 [pid 5000] rmdir("./256" [pid 9486] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5000] <... rmdir resumed>) = 0 [pid 9486] 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, "" [ 259.622229][ T9476] overlayfs: failed to resolve './file0': -2 [ 259.629256][ T9484] reiserfs: using flush barriers [ 259.637260][ T9482] loop1: detected capacity change from 0 to 8192 [ 259.640183][ T9484] 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 [ 259.647702][ T9482] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 259.661277][ T9484] REISERFS (device loop5): checking transaction log (loop5) [pid 5000] mkdir("./257", 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) = 9488 ./strace-static-x86_64: Process 9488 attached [pid 9486] <... mount resumed>) = 0 [ 259.682104][ T9482] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 259.691626][ T9482] REISERFS (device loop1): using ordered data mode [ 259.698275][ T9482] reiserfs: using flush barriers [ 259.698486][ T9484] REISERFS (device loop5): Using r5 hash to sort names [ 259.710443][ T9482] 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 9488] set_robust_list(0x555556b565e0, 24 [pid 9486] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9488] <... set_robust_list resumed>) = 0 [pid 9486] <... openat resumed>) = 4 [pid 9484] <... mount resumed>) = 0 [pid 9488] chdir("./257" [pid 9486] chdir("." [pid 9488] <... chdir resumed>) = 0 [pid 9486] <... chdir resumed>) = 0 [pid 9488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9486] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9488] <... prctl resumed>) = 0 [pid 9486] <... futex resumed>) = 1 [pid 9474] <... futex resumed>) = 0 [pid 9488] setpgid(0, 0 [pid 9486] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9474] exit_group(0 [pid 9488] <... setpgid resumed>) = 0 [pid 9486] <... futex resumed>) = ? [pid 9476] <... futex resumed>) = ? [pid 9474] <... exit_group resumed>) = ? [pid 9488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9486] +++ exited with 0 +++ [pid 9476] +++ exited with 0 +++ [pid 9474] +++ exited with 0 +++ [pid 9488] <... openat resumed>) = 3 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9474, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 9488] write(3, "1000", 4) = 4 [pid 9488] close(3 [pid 4998] umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9488] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9488] symlink("/dev/binderfs", "./binderfs" [pid 4998] openat(AT_FDCWD, "./255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9488] <... symlink resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9488] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] fstat(3, [pid 9488] <... futex resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4998] getdents64(3, [pid 9488] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9488] <... mprotect resumed>) = 0 [pid 4998] umount2("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9488] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./255/binderfs", [pid 9488] <... clone resumed>, parent_tid=[9489], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9489 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9488] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] unlink("./255/binderfs" [pid 9488] <... futex resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 9488] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9484] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9484] chdir("./file0") = 0 [pid 9484] ioctl(4, LOOP_CLR_FD) = 0 [pid 9484] close(4) = 0 [pid 9484] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9483] <... futex resumed>) = 0 [pid 9483] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9483] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9484] <... futex resumed>) = 1 [pid 9484] mkdir("./file1", 000) = 0 [pid 9484] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9483] <... futex resumed>) = 0 [ 259.711412][ T9484] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 259.727859][ T9482] REISERFS (device loop1): checking transaction log (loop1) [ 259.740408][ T9484] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 259.747868][ T9482] REISERFS (device loop1): Using r5 hash to sort names [ 259.764559][ T9482] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9483] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9489 attached [pid 9484] <... futex resumed>) = 1 [pid 9483] <... futex resumed>) = 0 [pid 9482] <... mount resumed>) = 0 [pid 9483] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9482] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9482] chdir("./file0") = 0 [pid 9482] ioctl(4, LOOP_CLR_FD) = 0 [pid 9482] close(4 [pid 9489] set_robust_list(0x7f38e1b989e0, 24 [pid 9482] <... close resumed>) = 0 [pid 9489] <... set_robust_list resumed>) = 0 [pid 9484] mkdir("./bus", 000 [pid 9482] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9489] memfd_create("syzkaller", 0 [pid 9484] <... mkdir resumed>) = 0 [pid 9482] <... futex resumed>) = 1 [pid 9480] <... futex resumed>) = 0 [pid 9489] <... memfd_create resumed>) = 3 [pid 9484] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9482] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9480] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9484] <... futex resumed>) = 1 [pid 9483] <... futex resumed>) = 0 [pid 9482] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9480] <... futex resumed>) = 0 [pid 9489] <... mmap resumed>) = 0x7f38d9778000 [pid 9484] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9483] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [ 259.777966][ T9482] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9482] mkdir("./file1", 000 [pid 9480] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9483] <... futex resumed>) = 0 [pid 9482] <... mkdir resumed>) = 0 [pid 9483] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9482] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9480] <... futex resumed>) = 0 [pid 9482] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9480] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9482] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9480] <... futex resumed>) = 0 [pid 9482] mkdir("./bus", 000 [pid 9480] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9482] <... mkdir resumed>) = 0 [pid 9482] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9480] <... futex resumed>) = 0 [pid 9482] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9480] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9482] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9480] <... futex resumed>) = 0 [pid 9482] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9480] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./255/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./255/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("./255/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./255") = 0 [pid 4998] mkdir("./256", 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) = 9490 ./strace-static-x86_64: Process 9490 attached [pid 9490] set_robust_list(0x555556b565e0, 24) = 0 [pid 9490] chdir("./256") = 0 [pid 9490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9490] setpgid(0, 0) = 0 [ 259.816432][ T9484] overlayfs: upper fs needs to support d_type. [ 259.822734][ T9484] overlayfs: upper fs does not support tmpfile. [ 259.838545][ T9482] overlayfs: upper fs needs to support d_type. [ 259.844779][ T9482] overlayfs: upper fs does not support tmpfile. [pid 9490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9490] write(3, "1000", 4) = 4 [pid 9490] close(3) = 0 [pid 9490] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9490] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9490] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9490] 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=[9491], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9491 [pid 9490] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9490] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9491 attached [pid 9491] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9491] memfd_create("syzkaller", 0) = 3 [pid 9491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9483] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9483] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9483] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9483] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9483] 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=[9492], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9492 [pid 9483] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9483] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9491] <... mmap resumed>) = 0x7f38d9778000 [pid 9480] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9480] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9489] 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 9480] <... futex resumed>) = 0 [pid 9480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9480] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9480] 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=[9493], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9493 [pid 9480] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9480] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9492 attached [pid 9492] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9492] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9492] 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 9493 attached [pid 9493] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9493] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9492] <... mount resumed>) = 0 [pid 9493] 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 9492] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9492] chdir(".") = 0 [pid 9492] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9483] <... futex resumed>) = 0 [pid 9492] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9493] <... mount resumed>) = 0 [pid 9493] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9493] chdir(".") = 0 [pid 9493] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9480] <... futex resumed>) = 0 [pid 9493] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9482] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9482] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9484] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9482] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9484] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9480] exit_group(0 [pid 9484] <... futex resumed>) = 0 [pid 9482] <... futex resumed>) = ? [pid 9493] <... futex resumed>) = ? [pid 9480] <... exit_group resumed>) = ? [pid 9493] +++ exited with 0 +++ [pid 9484] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9482] +++ exited with 0 +++ [pid 9480] +++ exited with 0 +++ [pid 9489] <... write resumed>) = 4194304 [pid 9483] exit_group(0 [pid 9492] <... futex resumed>) = ? [pid 9489] munmap(0x7f38d9778000, 4194304 [pid 9484] <... futex resumed>) = ? [pid 9483] <... exit_group resumed>) = ? [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9480, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9492] +++ exited with 0 +++ [pid 9489] <... munmap resumed>) = 0 [pid 9484] +++ exited with 0 +++ [pid 4999] umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./255", 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("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9489] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9489] <... openat resumed>) = 4 [pid 4999] lstat("./255/binderfs", [pid 9489] ioctl(4, LOOP_SET_FD, 3 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 259.863787][ T9482] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 259.873018][ T9484] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 259.892823][ T9482] overlayfs: failed to resolve './file0': -2 [ 259.903098][ T9484] overlayfs: failed to resolve './file0': -2 [pid 9491] 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 9483] +++ exited with 0 +++ [pid 4999] unlink("./255/binderfs" [pid 9489] <... ioctl resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9483, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 4999] <... unlink resumed>) = 0 [pid 9489] close(3 [pid 4999] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9489] <... close resumed>) = 0 [pid 9489] mkdir("./file0", 0777) = 0 [pid 9489] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9491] <... write resumed>) = 4194304 [pid 5003] openat(AT_FDCWD, "./255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... umount2 resumed>) = 0 [pid 9491] munmap(0x7f38d9778000, 4194304 [pid 5003] <... openat resumed>) = 3 [pid 9491] <... munmap resumed>) = 0 [pid 5003] fstat(3, [pid 4999] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9491] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9491] <... openat resumed>) = 4 [pid 5003] getdents64(3, [ 259.946679][ T9489] loop2: detected capacity change from 0 to 8192 [ 259.977309][ T9489] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 4999] lstat("./255/file0", [pid 9491] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./255/binderfs", [pid 4999] openat(AT_FDCWD, "./255/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... openat resumed>) = 4 [pid 5003] unlink("./255/binderfs" [pid 4999] fstat(4, [pid 5003] <... unlink resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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("./255/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./255") = 0 [pid 4999] mkdir("./256", 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) = 9495 [pid 9491] <... ioctl resumed>) = 0 [pid 9491] close(3) = 0 [pid 9491] mkdir("./file0", 0777) = 0 [ 259.995890][ T9489] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 259.996787][ T9491] loop0: detected capacity change from 0 to 8192 [ 260.005156][ T9489] REISERFS (device loop2): using ordered data mode [ 260.018238][ T9489] reiserfs: using flush barriers [pid 9491] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9495 attached [pid 9495] set_robust_list(0x555556b565e0, 24) = 0 [pid 9495] chdir("./256") = 0 [pid 9495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9495] setpgid(0, 0) = 0 [pid 9495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9495] write(3, "1000", 4) = 4 [pid 9495] close(3) = 0 [pid 9495] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9495] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [ 260.032833][ T9489] 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 [ 260.036464][ T9491] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 260.050881][ T9489] REISERFS (device loop2): checking transaction log (loop2) [ 260.077164][ T9489] REISERFS (device loop2): Using r5 hash to sort names [ 260.086328][ T9491] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9495] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9495] 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=[9497], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9497 [pid 9495] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./255/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./255/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("./255/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./255") = 0 [pid 5003] mkdir("./256", 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) = 9498 ./strace-static-x86_64: Process 9498 attached [pid 9498] set_robust_list(0x555556b565e0, 24) = 0 [pid 9498] chdir("./256") = 0 [pid 9498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9495] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9498] setpgid(0, 0) = 0 [pid 9498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 9497 attached [pid 9497] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9498] write(3, "1000", 4) = 4 [pid 9497] memfd_create("syzkaller", 0 [pid 9498] close(3 [pid 9497] <... memfd_create resumed>) = 3 [pid 9497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9498] <... close resumed>) = 0 [pid 9498] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9498] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9498] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9498] 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=[9499], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9499 [pid 9498] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9498] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9499 attached [pid 9499] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9499] memfd_create("syzkaller", 0) = 3 [pid 9499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 260.097445][ T9491] REISERFS (device loop0): using ordered data mode [ 260.105293][ T9489] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 260.105388][ T9491] reiserfs: using flush barriers [ 260.126260][ T9491] 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 9499] 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 9497] 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 9489] <... mount resumed>) = 0 [pid 9489] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9489] chdir("./file0") = 0 [pid 9489] ioctl(4, LOOP_CLR_FD) = 0 [pid 9489] close(4 [pid 9499] <... write resumed>) = 4194304 [pid 9499] munmap(0x7f38d9778000, 4194304) = 0 [pid 9499] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9499] ioctl(4, LOOP_SET_FD, 3 [pid 9489] <... close resumed>) = 0 [pid 9489] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9488] <... futex resumed>) = 0 [pid 9489] <... futex resumed>) = 1 [pid 9488] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9489] mkdir("./file1", 000 [pid 9488] <... futex resumed>) = 0 [pid 9488] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9489] <... mkdir resumed>) = 0 [ 260.172498][ T9489] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 260.182864][ T9491] REISERFS (device loop0): checking transaction log (loop0) [ 260.202051][ T9491] REISERFS (device loop0): Using r5 hash to sort names [pid 9489] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9488] <... futex resumed>) = 0 [pid 9489] <... futex resumed>) = 1 [pid 9488] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9489] mkdir("./bus", 000 [pid 9488] <... futex resumed>) = 0 [pid 9488] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9489] <... mkdir resumed>) = 0 [pid 9489] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9488] <... futex resumed>) = 0 [pid 9489] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9488] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9488] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9499] <... ioctl resumed>) = 0 [pid 9499] close(3) = 0 [pid 9499] mkdir("./file0", 0777) = 0 [pid 9499] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9497] <... write resumed>) = 4194304 [pid 9491] <... mount resumed>) = 0 [ 260.234814][ T9499] loop5: detected capacity change from 0 to 8192 [ 260.244875][ T9489] overlayfs: upper fs needs to support d_type. [ 260.248709][ T9491] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 260.264058][ T9489] overlayfs: upper fs does not support tmpfile. [ 260.264397][ T9491] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9497] munmap(0x7f38d9778000, 4194304 [pid 9491] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9488] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9488] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9488] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9488] 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=[9501], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9501 [pid 9488] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9488] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9501 attached [pid 9501] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9501] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9501] 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 9501] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9497] <... munmap resumed>) = 0 [pid 9501] <... openat resumed>) = 4 [pid 9491] <... openat resumed>) = 3 [pid 9501] chdir(".") = 0 [pid 9501] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] chdir("./file0" [pid 9497] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9488] <... futex resumed>) = 0 [pid 9501] <... futex resumed>) = 1 [pid 9501] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9491] <... chdir resumed>) = 0 [ 260.271177][ T9499] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 260.283348][ T9489] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 260.293352][ T9499] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 260.300974][ T9489] overlayfs: failed to resolve './file0': -2 [ 260.327716][ T9499] REISERFS (device loop5): using ordered data mode [pid 9497] <... openat resumed>) = 4 [pid 9491] ioctl(4, LOOP_CLR_FD) = 0 [pid 9491] close(4) = 0 [pid 9491] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9490] <... futex resumed>) = 0 [pid 9490] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9491] mkdir("./file1", 000 [pid 9490] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9491] <... mkdir resumed>) = 0 [pid 9491] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9490] <... futex resumed>) = 0 [pid 9491] mkdir("./bus", 000 [pid 9490] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] <... mkdir resumed>) = 0 [pid 9490] <... futex resumed>) = 0 [pid 9490] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9491] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9490] <... futex resumed>) = 0 [pid 9490] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9490] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9491] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9497] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9489] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9497] close(3) = 0 [pid 9497] mkdir("./file0", 0777) = 0 [pid 9489] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9497] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9489] <... futex resumed>) = 0 [pid 9489] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9488] exit_group(0 [pid 9501] <... futex resumed>) = ? [pid 9489] <... futex resumed>) = ? [pid 9488] <... exit_group resumed>) = ? [pid 9501] +++ exited with 0 +++ [pid 9489] +++ exited with 0 +++ [ 260.331665][ T9497] loop1: detected capacity change from 0 to 8192 [ 260.341297][ T9499] reiserfs: using flush barriers [ 260.343038][ T9491] overlayfs: upper fs needs to support d_type. [ 260.352787][ T9491] overlayfs: upper fs does not support tmpfile. [ 260.359668][ T9499] 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 9488] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9488, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5000] umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./257", 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("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./257/binderfs") = 0 [pid 5000] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9490] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9490] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 260.362014][ T9497] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 260.377900][ T9499] REISERFS (device loop5): checking transaction log (loop5) [ 260.394620][ T9491] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 260.398586][ T9497] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 260.415669][ T9499] REISERFS (device loop5): Using r5 hash to sort names [ 260.415795][ T9497] REISERFS (device loop1): using ordered data mode [pid 9490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9490] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9490] 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=[9503], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9503 [pid 9490] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9503 attached ) = 0 [pid 9490] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9503] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9503] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9503] 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 9503] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [ 260.426454][ T9499] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 260.429938][ T9497] reiserfs: using flush barriers [ 260.450131][ T9491] overlayfs: failed to resolve './file0': -2 [ 260.457027][ T9497] 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 9503] chdir(".") = 0 [pid 9503] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9491] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9503] <... futex resumed>) = 1 [pid 9490] <... futex resumed>) = 0 [pid 9491] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9503] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9490] exit_group(0 [pid 9491] <... futex resumed>) = 0 [pid 9503] <... futex resumed>) = ? [pid 9490] <... exit_group resumed>) = ? [pid 9503] +++ exited with 0 +++ [pid 9491] +++ exited with 0 +++ [pid 9490] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9490, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./256", 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("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./256/binderfs") = 0 [ 260.490100][ T9497] REISERFS (device loop1): checking transaction log (loop1) [ 260.504335][ T9497] REISERFS (device loop1): Using r5 hash to sort names [ 260.511986][ T9497] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 260.524798][ T9497] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9499] <... mount resumed>) = 0 [pid 9497] <... mount resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 9499] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9497] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9499] <... openat resumed>) = 3 [pid 9499] chdir("./file0" [pid 9497] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9499] <... chdir resumed>) = 0 [pid 9497] chdir("./file0" [pid 5000] lstat("./257/file0", [pid 9499] ioctl(4, LOOP_CLR_FD [pid 9497] <... chdir resumed>) = 0 [pid 9499] <... ioctl resumed>) = 0 [pid 9497] ioctl(4, LOOP_CLR_FD [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9499] close(4 [pid 9497] <... ioctl resumed>) = 0 [pid 5000] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9499] <... close resumed>) = 0 [ 260.534039][ T9499] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9497] close(4 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = 0 [pid 9499] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9497] <... close resumed>) = 0 [pid 9499] <... futex resumed>) = 1 [pid 9498] <... futex resumed>) = 0 [pid 9497] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] openat(AT_FDCWD, "./257/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9499] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9498] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9497] <... futex resumed>) = 1 [pid 9495] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 9495] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9495] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./256/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./256/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("./256/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./256" [pid 9499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9498] <... futex resumed>) = 0 [pid 9497] mkdir("./file1", 000 [pid 5000] fstat(4, [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./257", 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 9499] mkdir("./file1", 000 [pid 9498] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9497] <... mkdir resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... close resumed>) = 0 [pid 9499] <... mkdir resumed>) = 0 [pid 9497] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(4, [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9499] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9497] <... futex resumed>) = 1 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9495] <... futex resumed>) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9504 ./strace-static-x86_64: Process 9504 attached [pid 9504] set_robust_list(0x555556b565e0, 24) = 0 [pid 9504] chdir("./257") = 0 [pid 9504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9504] setpgid(0, 0) = 0 [pid 9499] <... futex resumed>) = 1 [pid 9498] <... futex resumed>) = 0 [pid 9495] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9499] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9498] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9497] mkdir("./bus", 000 [pid 9495] <... futex resumed>) = 0 [pid 5000] getdents64(4, [pid 9498] <... futex resumed>) = 0 [pid 9495] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9497] <... mkdir resumed>) = 0 [pid 9498] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9497] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9499] mkdir("./bus", 000 [pid 5000] close(4 [pid 9497] <... futex resumed>) = 1 [pid 9495] <... futex resumed>) = 0 [pid 9499] <... mkdir resumed>) = 0 [pid 9495] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... close resumed>) = 0 [pid 9495] <... futex resumed>) = 0 [pid 9499] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9497] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9495] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] rmdir("./257/file0" [pid 9504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9504] write(3, "1000", 4) = 4 [pid 9504] close(3) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9499] <... futex resumed>) = 1 [pid 9498] <... futex resumed>) = 0 [pid 5000] getdents64(3, [pid 9504] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9504] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9504] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9504] 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=[9505], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9505 [pid 9504] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9505 attached [pid 9505] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9505] memfd_create("syzkaller", 0) = 3 [pid 9505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9499] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9498] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9498] <... futex resumed>) = 0 [pid 5000] close(3 [pid 9498] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./257") = 0 [pid 5000] mkdir("./258", 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) = 9506 ./strace-static-x86_64: Process 9506 attached [pid 9506] set_robust_list(0x555556b565e0, 24) = 0 [pid 9506] chdir("./258") = 0 [pid 9506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9506] setpgid(0, 0) = 0 [pid 9506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9506] write(3, "1000", 4) = 4 [pid 9506] close(3) = 0 [pid 9506] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9506] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9495] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9495] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 9506] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9495] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9506] 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 9495] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9495] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9505] 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 9506] <... clone resumed>, parent_tid=[9507], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9507 [pid 9495] <... mprotect resumed>) = 0 [pid 9506] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9495] 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 9506] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9495] <... clone resumed>, parent_tid=[9508], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9508 [pid 9495] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 260.610862][ T9497] overlayfs: upper fs needs to support d_type. [ 260.618545][ T9499] overlayfs: upper fs needs to support d_type. [ 260.626980][ T9499] overlayfs: upper fs does not support tmpfile. [ 260.633592][ T9497] overlayfs: upper fs does not support tmpfile. [ 260.641322][ T9499] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 260.650514][ T9497] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9495] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9507 attached [pid 9507] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9507] memfd_create("syzkaller", 0) = 3 [pid 9507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 9508 attached [pid 9508] set_robust_list(0x7f38d9b779e0, 24 [pid 9507] <... mmap resumed>) = 0x7f38d9778000 [pid 9508] <... set_robust_list resumed>) = 0 [pid 9508] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9508] 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 9498] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9498] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9498] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9498] 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=[9509], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9509 [pid 9498] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9498] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9509 attached [pid 9509] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9509] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9509] 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 9499] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9499] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9508] <... mount resumed>) = 0 [pid 9508] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9499] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9508] <... openat resumed>) = 4 [pid 9508] chdir("." [pid 9509] <... mount resumed>) = 0 [pid 9509] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9509] chdir(".") = 0 [pid 9509] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9509] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9508] <... chdir resumed>) = 0 [pid 9498] <... futex resumed>) = 0 [pid 9508] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9498] exit_group(0 [pid 9508] <... futex resumed>) = 1 [pid 9495] <... futex resumed>) = 0 [pid 9498] <... exit_group resumed>) = ? [pid 9499] <... futex resumed>) = ? [pid 9509] <... futex resumed>) = ? [pid 9509] +++ exited with 0 +++ [pid 9499] +++ exited with 0 +++ [pid 9508] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9498] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9498, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5003] umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./256", 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("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./256/binderfs") = 0 [pid 5003] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9507] 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 9505] <... write resumed>) = 4194304 [pid 9505] munmap(0x7f38d9778000, 4194304) = 0 [pid 9505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9497] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9497] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9495] exit_group(0 [pid 9508] <... futex resumed>) = ? [pid 9495] <... exit_group resumed>) = ? [pid 9508] +++ exited with 0 +++ [pid 9497] +++ exited with 0 +++ [pid 9495] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9495, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 9505] ioctl(4, LOOP_SET_FD, 3 [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./256", 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("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 260.665921][ T9499] overlayfs: failed to resolve './file0': -2 [ 260.694790][ T9497] overlayfs: failed to resolve './file0': -2 [pid 4999] lstat("./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./256/binderfs") = 0 [pid 4999] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9505] <... ioctl resumed>) = 0 [pid 9507] <... write resumed>) = 4194304 [pid 9507] munmap(0x7f38d9778000, 4194304) = 0 [pid 9507] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9507] ioctl(4, LOOP_SET_FD, 3 [pid 9505] close(3) = 0 [pid 9505] mkdir("./file0", 0777) = 0 [pid 9507] <... ioctl resumed>) = 0 [pid 9507] close(3) = 0 [pid 9507] mkdir("./file0", 0777) = 0 [pid 9507] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 260.749436][ T9505] loop0: detected capacity change from 0 to 8192 [ 260.777199][ T9507] loop2: detected capacity change from 0 to 8192 [pid 9505] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4999] <... umount2 resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./256/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./256/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 260.794797][ T9507] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 260.809315][ T9505] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 260.815548][ T9507] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 260.832497][ T9507] REISERFS (device loop2): using ordered data mode [ 260.834710][ T9505] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 4999] lstat("./256/file0", [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("./256/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./256") = 0 [pid 5003] mkdir("./257", 0777) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [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 4999] openat(AT_FDCWD, "./256/file0", 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) = 9512 ./strace-static-x86_64: Process 9512 attached [pid 9512] set_robust_list(0x555556b565e0, 24) = 0 [pid 9512] chdir("./257") = 0 [pid 9512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 9512] setpgid(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("./256/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./256") = 0 [pid 4999] mkdir("./257", 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 9512] <... setpgid resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9512] write(3, "1000", 4) = 4 [pid 9512] close(3) = 0 [pid 9512] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9513 [pid 9512] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [ 260.839652][ T9507] reiserfs: using flush barriers [ 260.855553][ T9507] 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 [ 260.872090][ T9505] REISERFS (device loop0): using ordered data mode [ 260.879313][ T9505] reiserfs: using flush barriers [ 260.885175][ T9507] REISERFS (device loop2): checking transaction log (loop2) ./strace-static-x86_64: Process 9513 attached [pid 9512] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9513] set_robust_list(0x555556b565e0, 24 [pid 9512] <... mprotect resumed>) = 0 [pid 9513] <... set_robust_list resumed>) = 0 [pid 9513] chdir("./257") = 0 [pid 9513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9513] setpgid(0, 0) = 0 [pid 9513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9513] write(3, "1000", 4) = 4 [pid 9513] close(3) = 0 [pid 9513] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9513] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9513] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9513] 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=[9514], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9514 [pid 9513] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9513] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9514 attached [pid 9514] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9514] memfd_create("syzkaller", 0) = 3 [pid 9514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9512] 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 9515 attached , parent_tid=[9515], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9515 [ 260.896975][ T9505] 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 [ 260.906148][ T9507] REISERFS (device loop2): Using r5 hash to sort names [ 260.913864][ T9505] REISERFS (device loop0): checking transaction log (loop0) [ 260.921709][ T9507] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9515] set_robust_list(0x7f38e1b989e0, 24 [pid 9512] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9515] <... set_robust_list resumed>) = 0 [pid 9512] <... futex resumed>) = 0 [pid 9507] <... mount resumed>) = 0 [pid 9515] memfd_create("syzkaller", 0 [pid 9512] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9507] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9515] <... memfd_create resumed>) = 3 [pid 9515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9507] <... openat resumed>) = 3 [pid 9514] 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 9515] <... mmap resumed>) = 0x7f38d9778000 [pid 9507] chdir("./file0") = 0 [pid 9507] ioctl(4, LOOP_CLR_FD) = 0 [pid 9507] close(4) = 0 [pid 9507] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9506] <... futex resumed>) = 0 [pid 9507] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9506] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9506] <... futex resumed>) = 0 [pid 9507] mkdir("./file1", 000 [pid 9506] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9507] <... mkdir resumed>) = 0 [pid 9507] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9506] <... futex resumed>) = 0 [pid 9507] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9506] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9506] <... futex resumed>) = 0 [pid 9507] mkdir("./bus", 000 [pid 9506] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9507] <... mkdir resumed>) = 0 [pid 9507] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9506] <... futex resumed>) = 0 [pid 9507] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9506] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9506] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9515] 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 9505] <... mount resumed>) = 0 [ 260.941756][ T9507] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 260.951550][ T9505] REISERFS (device loop0): Using r5 hash to sort names [ 260.961033][ T9505] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 260.984659][ T9505] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9505] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9505] chdir("./file0") = 0 [pid 9505] ioctl(4, LOOP_CLR_FD) = 0 [pid 9505] close(4) = 0 [pid 9505] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9504] <... futex resumed>) = 0 [pid 9504] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9505] mkdir("./file1", 000) = 0 [pid 9505] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9504] <... futex resumed>) = 0 [pid 9504] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9505] <... futex resumed>) = 1 [pid 9505] mkdir("./bus", 000) = 0 [pid 9505] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9504] <... futex resumed>) = 0 [pid 9504] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9505] <... futex resumed>) = 1 [ 260.997812][ T9507] overlayfs: upper fs needs to support d_type. [ 261.004037][ T9507] overlayfs: upper fs does not support tmpfile. [ 261.036915][ T9505] overlayfs: upper fs needs to support d_type. [ 261.038790][ T9507] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9505] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9506] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9506] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9514] <... write resumed>) = 4194304 [pid 9506] <... mmap resumed>) = 0x7f38d9b57000 [pid 9514] munmap(0x7f38d9778000, 4194304 [pid 9506] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9506] 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 9514] <... munmap resumed>) = 0 [pid 9514] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9506] <... clone resumed>, parent_tid=[9516], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9516 [pid 9506] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9506] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9514] ioctl(4, LOOP_SET_FD, 3 [pid 9515] <... write resumed>) = 4194304 [pid 9515] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9516 attached [pid 9514] <... ioctl resumed>) = 0 [pid 9516] set_robust_list(0x7f38d9b779e0, 24 [pid 9514] close(3 [pid 9516] <... set_robust_list resumed>) = 0 [pid 9514] <... close resumed>) = 0 [pid 9516] mkdir(".", 0777 [pid 9514] mkdir("./file0", 0777 [pid 9504] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9504] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9504] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9504] 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=[9517], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9517 [pid 9504] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9504] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9516] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9516] 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 9514] <... mkdir resumed>) = 0 [pid 9515] <... munmap resumed>) = 0 [pid 9515] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9514] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9515] <... openat resumed>) = 4 [pid 9515] ioctl(4, LOOP_SET_FD, 3 [pid 9516] <... mount resumed>) = 0 [pid 9507] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 9517 attached [pid 9517] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9517] mkdir(".", 0777) = -1 EEXIST (File exists) [ 261.047535][ T9505] overlayfs: upper fs does not support tmpfile. [ 261.062729][ T9507] overlayfs: failed to resolve './file0': -2 [ 261.069180][ T9514] loop1: detected capacity change from 0 to 8192 [ 261.088964][ T9515] loop5: detected capacity change from 0 to 8192 [pid 9517] 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 9516] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9507] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9517] <... mount resumed>) = 0 [pid 9517] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9517] chdir(".") = 0 [pid 9517] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9504] <... futex resumed>) = 0 [pid 9517] <... futex resumed>) = 1 [pid 9517] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9515] <... ioctl resumed>) = 0 [pid 9515] close(3 [pid 9516] <... openat resumed>) = 4 [pid 9507] <... futex resumed>) = 0 [pid 9516] chdir("." [pid 9507] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9515] <... close resumed>) = 0 [pid 9515] mkdir("./file0", 0777) = 0 [pid 9515] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9516] <... chdir resumed>) = 0 [ 261.090901][ T9514] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 261.099884][ T9505] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 261.108963][ T9514] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 261.125580][ T9514] REISERFS (device loop1): using ordered data mode [ 261.131657][ T9505] overlayfs: failed to resolve './file0': -2 [ 261.132844][ T9514] reiserfs: using flush barriers [pid 9516] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9516] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9506] <... futex resumed>) = 0 [pid 9505] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9505] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9505] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9506] exit_group(0 [ 261.139496][ T9515] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 261.145495][ T9514] 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 [ 261.156863][ T9515] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 261.174308][ T9514] REISERFS (device loop1): checking transaction log (loop1) [ 261.182496][ T9515] REISERFS (device loop5): using ordered data mode [pid 9504] exit_group(0 [pid 9517] <... futex resumed>) = ? [pid 9516] <... futex resumed>) = ? [pid 9507] <... futex resumed>) = ? [pid 9506] <... exit_group resumed>) = ? [pid 9505] <... futex resumed>) = ? [pid 9504] <... exit_group resumed>) = ? [pid 9507] +++ exited with 0 +++ [pid 9517] +++ exited with 0 +++ [pid 9516] +++ exited with 0 +++ [pid 9506] +++ exited with 0 +++ [pid 9505] +++ exited with 0 +++ [pid 9504] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9506, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9504, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5000] umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "./257", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 4998] fstat(3, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4998] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] lstat("./257/binderfs", [pid 5000] unlink("./258/binderfs" [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 4998] unlink("./257/binderfs" [pid 5000] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... unlink resumed>) = 0 [pid 4998] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9514] <... mount resumed>) = 0 [pid 9514] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 261.191661][ T9514] REISERFS (device loop1): Using r5 hash to sort names [ 261.196078][ T9515] reiserfs: using flush barriers [ 261.204352][ T9514] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 261.220715][ T9514] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 261.225265][ T9515] 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 9514] chdir("./file0") = 0 [pid 9514] ioctl(4, LOOP_CLR_FD) = 0 [pid 9514] close(4) = 0 [pid 9514] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9513] <... futex resumed>) = 0 [pid 9514] mkdir("./file1", 000 [pid 9513] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9514] <... mkdir resumed>) = 0 [pid 9513] <... futex resumed>) = 0 [pid 9514] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9513] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9514] <... futex resumed>) = 0 [pid 9513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9514] mkdir("./bus", 000 [pid 9513] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9514] <... mkdir resumed>) = 0 [pid 9513] <... futex resumed>) = 0 [pid 9514] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9513] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9514] <... futex resumed>) = 0 [pid 9513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9514] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9513] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9513] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9515] <... mount resumed>) = 0 [pid 9515] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9515] chdir("./file0") = 0 [ 261.247471][ T9515] REISERFS (device loop5): checking transaction log (loop5) [ 261.255455][ T9515] REISERFS (device loop5): Using r5 hash to sort names [ 261.262799][ T9515] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 261.270794][ T9514] overlayfs: upper fs needs to support d_type. [ 261.282023][ T9515] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 261.291934][ T9514] overlayfs: upper fs does not support tmpfile. [pid 9515] ioctl(4, LOOP_CLR_FD) = 0 [pid 9515] close(4) = 0 [pid 9515] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9512] <... futex resumed>) = 0 [pid 9515] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9512] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9512] <... futex resumed>) = 0 [pid 9515] mkdir("./file1", 000 [pid 9512] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9515] <... mkdir resumed>) = 0 [pid 9515] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9512] <... futex resumed>) = 0 [pid 9515] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9512] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9512] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9515] mkdir("./bus", 000) = 0 [pid 9515] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9514] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9512] <... futex resumed>) = 0 [pid 9515] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9514] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9512] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9514] <... futex resumed>) = 1 [pid 9512] <... futex resumed>) = 0 [pid 9515] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9514] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9512] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9513] <... futex resumed>) = 0 [pid 9514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9513] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9513] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9514] mkdir(".", 0777) = -1 EEXIST (File exists) [ 261.299271][ T9514] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 261.311191][ T9514] overlayfs: failed to resolve './file0': -2 [ 261.328279][ T9515] overlayfs: upper fs needs to support d_type. [ 261.337711][ T9515] overlayfs: upper fs does not support tmpfile. [pid 9514] 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 5000] <... umount2 resumed>) = 0 [pid 9514] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9514] chdir(".") = 0 [pid 9514] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9513] <... futex resumed>) = 0 [pid 9512] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9514] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9512] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9513] exit_group(0 [pid 9512] <... mmap resumed>) = 0x7f38d9b57000 [pid 9512] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9513] <... exit_group resumed>) = ? [pid 9514] <... futex resumed>) = ? [pid 9512] <... mprotect resumed>) = 0 [pid 9514] +++ exited with 0 +++ [pid 9513] +++ exited with 0 +++ [pid 9512] 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] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9513, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9512] <... clone resumed>, parent_tid=[9520], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9520 [pid 9512] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9512] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./257", 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("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./257/binderfs") = 0 [pid 4999] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 9520 attached [pid 5000] lstat("./258/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./258/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9520] set_robust_list(0x7f38d9b779e0, 24 [pid 4998] <... umount2 resumed>) = 0 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9520] <... set_robust_list resumed>) = 0 [pid 5000] getdents64(4, [pid 4998] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9520] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9520] 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 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9520] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] close(4) = 0 [pid 5000] rmdir("./258/file0" [pid 9520] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4998] lstat("./257/file0", [pid 9520] <... openat resumed>) = 4 [pid 5000] <... rmdir resumed>) = 0 [pid 9520] chdir(".") = 0 [pid 9520] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9512] <... futex resumed>) = 0 [pid 9520] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./257/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./258" [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] close(4 [pid 5000] mkdir("./259", 0777 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./257/file0" [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [ 261.346621][ T9515] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 261.367607][ T9515] overlayfs: failed to resolve './file0': -2 [pid 4998] rmdir("./257" [pid 5000] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./258", 0777 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] <... mkdir resumed>) = 0 [pid 5000] close(3) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9515] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] close(3 [pid 9515] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4998] <... close resumed>) = 0 [pid 9515] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9512] exit_group(0 [pid 9520] <... futex resumed>) = ? [pid 9515] <... futex resumed>) = ? [pid 9512] <... exit_group resumed>) = ? [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9520] +++ exited with 0 +++ [pid 9515] +++ exited with 0 +++ [pid 9512] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9512, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9522 [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./257", 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("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./257/binderfs") = 0 [pid 5003] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9522 attached ./strace-static-x86_64: Process 9521 attached [pid 9522] set_robust_list(0x555556b565e0, 24 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9521 [pid 9521] set_robust_list(0x555556b565e0, 24) = 0 [pid 9522] <... set_robust_list resumed>) = 0 [pid 9521] chdir("./259" [pid 9522] chdir("./258" [pid 9521] <... chdir resumed>) = 0 [pid 9522] <... chdir resumed>) = 0 [pid 9521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9521] <... prctl resumed>) = 0 [pid 9522] <... prctl resumed>) = 0 [pid 9521] setpgid(0, 0 [pid 9522] setpgid(0, 0 [pid 9521] <... setpgid resumed>) = 0 [pid 9522] <... setpgid resumed>) = 0 [pid 9521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9521] <... openat resumed>) = 3 [pid 9522] <... openat resumed>) = 3 [pid 9521] write(3, "1000", 4 [pid 9522] write(3, "1000", 4 [pid 9521] <... write resumed>) = 4 [pid 9522] <... write resumed>) = 4 [pid 9521] close(3 [pid 9522] close(3 [pid 9521] <... close resumed>) = 0 [pid 9522] <... close resumed>) = 0 [pid 9521] symlink("/dev/binderfs", "./binderfs" [pid 9522] symlink("/dev/binderfs", "./binderfs" [pid 9521] <... symlink resumed>) = 0 [pid 9522] <... symlink resumed>) = 0 [pid 9521] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9521] <... futex resumed>) = 0 [pid 9522] <... futex resumed>) = 0 [pid 9521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9521] <... mmap resumed>) = 0x7f38e1b78000 [pid 9522] <... mmap resumed>) = 0x7f38e1b78000 [pid 9521] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9522] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9521] <... mprotect resumed>) = 0 [pid 9522] <... mprotect resumed>) = 0 [pid 9521] 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 9522] 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 9521] <... clone resumed>, parent_tid=[9523], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9523 [pid 9522] <... clone resumed>, parent_tid=[9524], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9524 [pid 9521] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9521] <... futex resumed>) = 0 [pid 9522] <... futex resumed>) = 0 [pid 9521] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9522] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9524 attached ./strace-static-x86_64: Process 9523 attached [pid 9524] set_robust_list(0x7f38e1b989e0, 24 [pid 9523] set_robust_list(0x7f38e1b989e0, 24 [pid 9524] <... set_robust_list resumed>) = 0 [pid 9523] <... set_robust_list resumed>) = 0 [pid 9523] memfd_create("syzkaller", 0 [pid 9524] memfd_create("syzkaller", 0 [pid 9523] <... memfd_create resumed>) = 3 [pid 9524] <... memfd_create resumed>) = 3 [pid 9523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9523] <... mmap resumed>) = 0x7f38d9778000 [pid 9524] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./257/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./257/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("./257/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./257") = 0 [pid 4999] mkdir("./258", 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) = 9525 ./strace-static-x86_64: Process 9525 attached [pid 9525] set_robust_list(0x555556b565e0, 24) = 0 [pid 9525] chdir("./258") = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 9525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9525] setpgid(0, 0 [pid 5003] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9525] <... setpgid resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] lstat("./257/file0", [pid 9525] <... openat resumed>) = 3 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9525] write(3, "1000", 4) = 4 [pid 9525] close(3) = 0 [pid 9525] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9525] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9525] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] openat(AT_FDCWD, "./257/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9525] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... openat resumed>) = 4 [pid 9525] <... mprotect resumed>) = 0 [pid 5003] fstat(4, [pid 9525] 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] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9523] 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 9524] 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] getdents64(4, [pid 9525] <... clone resumed>, parent_tid=[9526], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9526 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9525] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 9525] <... futex resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 9525] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] rmdir("./257/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./257") = 0 [pid 5003] mkdir("./258", 0777./strace-static-x86_64: Process 9526 attached ) = 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 9526] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9526] memfd_create("syzkaller", 0) = 3 [pid 9526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9527 ./strace-static-x86_64: Process 9527 attached [pid 9527] set_robust_list(0x555556b565e0, 24) = 0 [pid 9527] chdir("./258") = 0 [pid 9527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9527] setpgid(0, 0) = 0 [pid 9527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9527] write(3, "1000", 4) = 4 [pid 9527] close(3) = 0 [pid 9527] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9527] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9527] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9527] 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=[9528], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9528 [pid 9527] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9527] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9528 attached [pid 9528] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9528] memfd_create("syzkaller", 0) = 3 [pid 9528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9523] <... write resumed>) = 4194304 [pid 9524] <... write resumed>) = 4194304 [pid 9523] munmap(0x7f38d9778000, 4194304 [pid 9524] munmap(0x7f38d9778000, 4194304 [pid 9523] <... munmap resumed>) = 0 [pid 9524] <... munmap resumed>) = 0 [pid 9523] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9524] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9523] <... openat resumed>) = 4 [pid 9524] <... openat resumed>) = 4 [pid 9523] ioctl(4, LOOP_SET_FD, 3 [pid 9524] ioctl(4, LOOP_SET_FD, 3 [pid 9526] 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 9524] <... ioctl resumed>) = 0 [pid 9523] <... ioctl resumed>) = 0 [pid 9524] close(3 [pid 9523] close(3 [pid 9524] <... close resumed>) = 0 [pid 9523] <... close resumed>) = 0 [pid 9524] mkdir("./file0", 0777 [pid 9523] mkdir("./file0", 0777 [pid 9524] <... mkdir resumed>) = 0 [pid 9523] <... mkdir resumed>) = 0 [pid 9524] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9523] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9528] 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 9526] <... write resumed>) = 4194304 [pid 9526] munmap(0x7f38d9778000, 4194304) = 0 [pid 9526] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 261.605888][ T9523] loop2: detected capacity change from 0 to 8192 [ 261.612700][ T9524] loop0: detected capacity change from 0 to 8192 [ 261.629449][ T9523] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 261.643067][ T9524] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9526] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9526] close(3) = 0 [pid 9526] mkdir("./file0", 0777) = 0 [pid 9526] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9528] <... write resumed>) = 4194304 [pid 9528] munmap(0x7f38d9778000, 4194304) = 0 [pid 9528] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 261.649010][ T9526] loop1: detected capacity change from 0 to 8192 [ 261.667112][ T9523] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 261.668409][ T9524] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 261.685748][ T9523] REISERFS (device loop2): using ordered data mode [ 261.686254][ T9524] REISERFS (device loop0): using ordered data mode [ 261.692346][ T9523] reiserfs: using flush barriers [ 261.705127][ T9523] 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 [ 261.708154][ T9528] loop5: detected capacity change from 0 to 8192 [ 261.721675][ T9523] REISERFS (device loop2): checking transaction log (loop2) [ 261.727976][ T9526] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 261.735883][ T9523] REISERFS (device loop2): Using r5 hash to sort names [pid 9528] ioctl(4, LOOP_SET_FD, 3) = 0 [ 261.749297][ T9524] reiserfs: using flush barriers [ 261.755306][ T9523] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 261.762204][ T9526] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 261.773009][ T9523] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9528] close(3 [pid 9523] <... mount resumed>) = 0 [pid 9528] <... close resumed>) = 0 [pid 9523] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9528] mkdir("./file0", 0777) = 0 [pid 9523] chdir("./file0" [pid 9528] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9523] <... chdir resumed>) = 0 [pid 9523] ioctl(4, LOOP_CLR_FD) = 0 [pid 9523] close(4) = 0 [pid 9523] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9521] <... futex resumed>) = 0 [pid 9523] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9521] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9521] <... futex resumed>) = 0 [pid 9523] mkdir("./file1", 000 [pid 9521] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9523] <... mkdir resumed>) = 0 [pid 9523] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9521] <... futex resumed>) = 0 [pid 9523] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 261.784264][ T9524] 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 [ 261.793825][ T9526] REISERFS (device loop1): using ordered data mode [ 261.809902][ T9524] REISERFS (device loop0): checking transaction log (loop0) [ 261.824251][ T9526] reiserfs: using flush barriers [ 261.830815][ T9526] 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 9521] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9523] mkdir("./bus", 000 [pid 9521] <... futex resumed>) = 0 [ 261.856458][ T9526] REISERFS (device loop1): checking transaction log (loop1) [ 261.856510][ T9528] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 261.867068][ T9524] REISERFS (device loop0): Using r5 hash to sort names [ 261.877724][ T9528] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 261.884224][ T9524] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9523] <... mkdir resumed>) = 0 [pid 9521] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9524] <... mount resumed>) = 0 [pid 9523] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9521] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9523] <... futex resumed>) = 0 [pid 9521] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9523] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9521] <... futex resumed>) = 0 [pid 9521] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 261.894165][ T9528] REISERFS (device loop5): using ordered data mode [ 261.906073][ T9524] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 261.912839][ T9528] reiserfs: using flush barriers [ 261.921583][ T9526] REISERFS (device loop1): Using r5 hash to sort names [ 261.929095][ T9523] overlayfs: upper fs needs to support d_type. [ 261.933474][ T9526] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9524] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9526] <... mount resumed>) = 0 [pid 9524] <... openat resumed>) = 3 [pid 9524] chdir("./file0") = 0 [pid 9524] ioctl(4, LOOP_CLR_FD) = 0 [pid 9524] close(4) = 0 [pid 9524] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9522] <... futex resumed>) = 0 [pid 9524] mkdir("./file1", 000 [pid 9522] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9524] <... mkdir resumed>) = 0 [pid 9522] <... futex resumed>) = 0 [pid 9524] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9524] <... futex resumed>) = 0 [pid 9522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9524] mkdir("./bus", 000 [pid 9522] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9524] <... mkdir resumed>) = 0 [pid 9522] <... futex resumed>) = 0 [pid 9524] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9524] <... futex resumed>) = 0 [pid 9522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9524] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9522] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9522] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9526] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9521] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9521] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9521] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9521] 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=[9533], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9533 [pid 9521] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9521] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9533 attached [pid 9533] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9533] mkdir(".", 0777) = -1 EEXIST (File exists) [ 261.952927][ T9526] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 261.955068][ T9523] overlayfs: upper fs does not support tmpfile. [ 261.968410][ T9528] 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 [ 261.985854][ T9524] overlayfs: upper fs needs to support d_type. [ 261.985861][ T9528] REISERFS (device loop5): checking transaction log (loop5) [ 261.986495][ T9528] REISERFS (device loop5): Using r5 hash to sort names [pid 9533] 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 9526] chdir("./file0") = 0 [pid 9533] <... mount resumed>) = 0 [pid 9528] <... mount resumed>) = 0 [pid 9526] ioctl(4, LOOP_CLR_FD [pid 9533] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9533] chdir(".") = 0 [pid 9533] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9521] <... futex resumed>) = 0 [pid 9533] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9528] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9526] <... ioctl resumed>) = 0 [pid 9522] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9528] <... openat resumed>) = 3 [pid 9528] chdir("./file0") = 0 [ 262.003671][ T9524] overlayfs: upper fs does not support tmpfile. [ 262.007133][ T9528] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 262.025524][ T9528] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 262.029796][ T9524] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.035376][ T9523] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.048387][ T9524] overlayfs: failed to resolve './file0': -2 [pid 9528] ioctl(4, LOOP_CLR_FD) = 0 [pid 9528] close(4) = 0 [pid 9526] close(4 [pid 9522] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9528] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9527] <... futex resumed>) = 0 [pid 9528] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9527] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9527] <... futex resumed>) = 0 [pid 9528] mkdir("./file1", 000 [pid 9527] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9528] <... mkdir resumed>) = 0 [pid 9526] <... close resumed>) = 0 [pid 9522] <... futex resumed>) = 0 [pid 9528] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9526] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9528] <... futex resumed>) = 1 [pid 9527] <... futex resumed>) = 0 [pid 9526] <... futex resumed>) = 1 [pid 9525] <... futex resumed>) = 0 [pid 9522] <... mmap resumed>) = 0x7f38d9b57000 [pid 9528] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9527] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9526] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9525] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9527] <... futex resumed>) = 0 [pid 9526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9525] <... futex resumed>) = 0 [pid 9522] <... mprotect resumed>) = 0 [pid 9526] mkdir("./file1", 000 [pid 9525] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9522] 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 9526] <... mkdir resumed>) = 0 [pid 9526] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] <... clone resumed>, parent_tid=[9534], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9534 [pid 9526] <... futex resumed>) = 1 [pid 9525] <... futex resumed>) = 0 [pid 9522] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9526] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9525] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] <... futex resumed>) = 0 [pid 9526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9525] <... futex resumed>) = 0 [pid 9522] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9526] mkdir("./bus", 000 [pid 9525] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9526] <... mkdir resumed>) = 0 [pid 9526] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9525] <... futex resumed>) = 0 [pid 9526] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9525] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9525] <... futex resumed>) = 0 [pid 9526] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9525] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9534 attached [pid 9528] mkdir("./bus", 000 [pid 9527] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9534] set_robust_list(0x7f38d9b779e0, 24 [pid 9528] <... mkdir resumed>) = 0 [pid 9534] <... set_robust_list resumed>) = 0 [pid 9528] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9534] mkdir(".", 0777 [pid 9528] <... futex resumed>) = 1 [pid 9527] <... futex resumed>) = 0 [pid 9534] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9528] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9527] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9524] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9523] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9534] 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 9528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9527] <... futex resumed>) = 0 [pid 9524] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9523] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9528] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9527] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9524] <... futex resumed>) = 0 [pid 9523] <... futex resumed>) = 0 [pid 9534] <... mount resumed>) = 0 [pid 9524] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9523] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9521] exit_group(0 [pid 9533] <... futex resumed>) = ? [pid 9523] <... futex resumed>) = ? [pid 9521] <... exit_group resumed>) = ? [pid 9533] +++ exited with 0 +++ [pid 9523] +++ exited with 0 +++ [pid 9521] +++ exited with 0 +++ [pid 9534] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9521, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [ 262.053899][ T9523] overlayfs: failed to resolve './file0': -2 [ 262.075040][ T9526] overlayfs: upper fs needs to support d_type. [ 262.090622][ T9528] overlayfs: upper fs needs to support d_type. [ 262.101121][ T9528] overlayfs: upper fs does not support tmpfile. [pid 5000] umount2("./259", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./259", 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("./259/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./259/binderfs") = 0 [pid 5000] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9534] <... openat resumed>) = 4 [pid 9534] chdir(".") = 0 [pid 9534] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9525] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9522] <... futex resumed>) = 0 [pid 9534] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9525] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9522] exit_group(0 [pid 9525] <... futex resumed>) = 0 [pid 9534] <... futex resumed>) = ? [pid 9522] <... exit_group resumed>) = ? [pid 9525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9534] +++ exited with 0 +++ [pid 9527] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9525] <... mmap resumed>) = 0x7f38d9b57000 [pid 9524] <... futex resumed>) = ? [pid 9525] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9527] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9525] <... mprotect resumed>) = 0 [pid 9524] +++ exited with 0 +++ [pid 9522] +++ exited with 0 +++ [pid 9527] <... futex resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9522, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 9527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9527] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9527] 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 9525] 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 9527] <... clone resumed>, parent_tid=[9535], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9535 [pid 9525] <... clone resumed>, parent_tid=[9536], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9536 [pid 9527] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9525] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9527] <... futex resumed>) = 0 [pid 9525] <... futex resumed>) = 0 [pid 9527] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9525] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./258", 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("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./258/binderfs") = 0 [pid 4998] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9536 attached [pid 9536] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9536] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9536] 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 9536] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9536] chdir(".") = 0 [pid 9536] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9525] <... futex resumed>) = 0 [pid 9536] <... futex resumed>) = 1 [ 262.106166][ T9526] overlayfs: upper fs does not support tmpfile. [ 262.126200][ T9526] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.127042][ T9528] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.134322][ T9526] overlayfs: failed to resolve './file0': -2 [ 262.144183][ T9528] overlayfs: failed to resolve './file0': -2 [pid 9536] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9535 attached [pid 9535] set_robust_list(0x7f38d9b779e0, 24 [pid 9528] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9528] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9535] <... set_robust_list resumed>) = 0 [pid 9528] <... futex resumed>) = 0 [pid 9528] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9535] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9535] 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 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./258/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./258/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("./258/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./258") = 0 [pid 4998] mkdir("./259", 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 9526] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] <... umount2 resumed>) = 0 [pid 9535] <... mount resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9535] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9526] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9535] <... openat resumed>) = 4 [pid 9526] <... futex resumed>) = 0 [pid 9535] chdir("." [pid 9526] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9525] exit_group(0 [pid 9536] <... futex resumed>) = ? [pid 9535] <... chdir resumed>) = 0 [pid 9526] <... futex resumed>) = ? [pid 9525] <... exit_group resumed>) = ? [pid 9536] +++ exited with 0 +++ [pid 9535] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9526] +++ exited with 0 +++ [pid 9535] <... futex resumed>) = 1 [pid 9535] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9527] <... futex resumed>) = 0 [pid 9525] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9525, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 9527] exit_group(0 [pid 9535] <... futex resumed>) = ? [pid 9528] <... futex resumed>) = ? [pid 9527] <... exit_group resumed>) = ? [pid 9535] +++ exited with 0 +++ [pid 9528] +++ exited with 0 +++ [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9527] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9527, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./259/file0", [pid 4999] umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 5003] fstat(3, [pid 4999] fstat(3, [pid 5003] <... 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 5003] getdents64(3, [pid 4999] getdents64(3, [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./258/binderfs", [pid 4999] lstat("./258/binderfs", [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./258/binderfs" [pid 4999] unlink("./258/binderfs" [pid 5003] <... unlink resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 5000] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9537 [pid 5000] openat(AT_FDCWD, "./259/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("./259/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./259") = 0 [pid 5000] mkdir("./260", 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) = 9538 ./strace-static-x86_64: Process 9537 attached [pid 9537] set_robust_list(0x555556b565e0, 24) = 0 [pid 9537] chdir("./259") = 0 [pid 9537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9537] setpgid(0, 0) = 0 [pid 9537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9537] write(3, "1000", 4) = 4 [pid 9537] close(3./strace-static-x86_64: Process 9538 attached ) = 0 [pid 9538] set_robust_list(0x555556b565e0, 24 [pid 9537] symlink("/dev/binderfs", "./binderfs" [pid 9538] <... set_robust_list resumed>) = 0 [pid 9537] <... symlink resumed>) = 0 [pid 9538] chdir("./260" [pid 9537] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] <... chdir resumed>) = 0 [pid 9537] <... futex resumed>) = 0 [pid 9538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9538] <... prctl resumed>) = 0 [pid 9537] <... mmap resumed>) = 0x7f38e1b78000 [pid 9538] setpgid(0, 0 [pid 9537] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9538] <... setpgid resumed>) = 0 [pid 9537] <... mprotect resumed>) = 0 [pid 9538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9537] 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 9538] <... openat resumed>) = 3 [pid 9538] write(3, "1000", 4 [pid 9537] <... clone resumed>, parent_tid=[9539], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9539 [pid 9538] <... write resumed>) = 4 [pid 9537] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] close(3 [pid 9537] <... futex resumed>) = 0 [pid 9538] <... close resumed>) = 0 [pid 9537] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9538] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9538] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9538] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9538] 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=[9540], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9540 [pid 9538] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9538] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9539 attached [pid 9539] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9539] memfd_create("syzkaller", 0) = 3 [pid 9539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9540 attached [pid 9540] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9540] memfd_create("syzkaller", 0) = 3 [pid 9540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./258/file0", [pid 5003] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] lstat("./258/file0", [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] openat(AT_FDCWD, "./258/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 4 [pid 5003] openat(AT_FDCWD, "./258/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] fstat(4, [pid 5003] <... openat resumed>) = 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("./258/file0" [pid 5003] rmdir("./258/file0" [pid 4999] <... rmdir resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, [pid 5003] getdents64(3, [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 5003] close(3) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] rmdir("./258" [pid 4999] rmdir("./258" [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./259", 0777 [pid 4999] <... rmdir resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 4999] mkdir("./259", 0777 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4999] <... mkdir resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9540] 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] ioctl(3, LOOP_CLR_FD [pid 4999] <... openat resumed>) = 3 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5003] close(3 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... close resumed>) = 0 [pid 9539] 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] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] close(3 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9541 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9542 ./strace-static-x86_64: Process 9541 attached ./strace-static-x86_64: Process 9542 attached [pid 9542] set_robust_list(0x555556b565e0, 24) = 0 [pid 9542] chdir("./259") = 0 [pid 9542] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9542] setpgid(0, 0) = 0 [pid 9542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9541] set_robust_list(0x555556b565e0, 24 [pid 9542] <... openat resumed>) = 3 [pid 9542] write(3, "1000", 4) = 4 [pid 9542] close(3) = 0 [pid 9542] symlink("/dev/binderfs", "./binderfs" [pid 9541] <... set_robust_list resumed>) = 0 [pid 9542] <... symlink resumed>) = 0 [pid 9541] chdir("./259" [pid 9542] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9541] <... chdir resumed>) = 0 [pid 9542] <... futex resumed>) = 0 [pid 9542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9541] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9542] <... mmap resumed>) = 0x7f38e1b78000 [pid 9541] <... prctl resumed>) = 0 [pid 9542] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9541] setpgid(0, 0 [pid 9542] <... mprotect resumed>) = 0 [pid 9541] <... setpgid resumed>) = 0 [pid 9542] 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 9541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9542] <... clone resumed>, parent_tid=[9543], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9543 [pid 9541] write(3, "1000", 4 [pid 9542] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9541] <... write resumed>) = 4 [pid 9542] <... futex resumed>) = 0 [pid 9541] close(3 [pid 9542] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9541] <... close resumed>) = 0 [pid 9541] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9541] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9541] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9541] 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 9540] <... write resumed>) = 4194304 [pid 9540] munmap(0x7f38d9778000, 4194304 [pid 9541] <... clone resumed>, parent_tid=[9544], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9544 ./strace-static-x86_64: Process 9543 attached [pid 9541] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9543] set_robust_list(0x7f38e1b989e0, 24 [pid 9541] <... futex resumed>) = 0 [pid 9543] <... set_robust_list resumed>) = 0 [pid 9541] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9540] <... munmap resumed>) = 0 [pid 9543] memfd_create("syzkaller", 0 [pid 9540] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 9544 attached [pid 9543] <... memfd_create resumed>) = 3 [pid 9540] <... openat resumed>) = 4 [pid 9544] set_robust_list(0x7f38e1b989e0, 24 [pid 9543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9540] ioctl(4, LOOP_SET_FD, 3 [pid 9543] <... mmap resumed>) = 0x7f38d9778000 [pid 9544] <... set_robust_list resumed>) = 0 [pid 9544] memfd_create("syzkaller", 0 [pid 9540] <... ioctl resumed>) = 0 [pid 9544] <... memfd_create resumed>) = 3 [pid 9540] close(3 [pid 9539] <... write resumed>) = 4194304 [pid 9544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9540] <... close resumed>) = 0 [pid 9539] munmap(0x7f38d9778000, 4194304 [pid 9544] <... mmap resumed>) = 0x7f38d9778000 [pid 9540] mkdir("./file0", 0777) = 0 [pid 9539] <... munmap resumed>) = 0 [pid 9540] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9539] ioctl(4, LOOP_SET_FD, 3 [pid 9543] 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 9539] <... ioctl resumed>) = 0 [pid 9539] close(3) = 0 [pid 9539] mkdir("./file0", 0777) = 0 [ 262.394104][ T9540] loop2: detected capacity change from 0 to 8192 [ 262.418726][ T9539] loop0: detected capacity change from 0 to 8192 [ 262.425889][ T9540] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9539] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9543] <... write resumed>) = 4194304 [pid 9543] munmap(0x7f38d9778000, 4194304) = 0 [pid 9543] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9543] ioctl(4, LOOP_SET_FD, 3 [pid 9544] 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 9543] <... ioctl resumed>) = 0 [pid 9543] close(3) = 0 [pid 9543] mkdir("./file0", 0777) = 0 [ 262.451097][ T9539] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 262.462034][ T9543] loop1: detected capacity change from 0 to 8192 [ 262.468437][ T9540] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 262.475265][ T9539] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 262.489362][ T9540] REISERFS (device loop2): using ordered data mode [pid 9543] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9544] <... write resumed>) = 4194304 [ 262.489856][ T9539] REISERFS (device loop0): using ordered data mode [ 262.502572][ T9540] reiserfs: using flush barriers [ 262.506300][ T9540] 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 [ 262.508292][ T9539] reiserfs: using flush barriers [ 262.527667][ T9540] REISERFS (device loop2): checking transaction log (loop2) [ 262.529120][ T9543] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9544] munmap(0x7f38d9778000, 4194304) = 0 [pid 9544] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 262.537211][ T9539] 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 [ 262.551336][ T9543] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 262.575963][ T9539] REISERFS (device loop0): checking transaction log (loop0) [ 262.576454][ T9540] REISERFS (device loop2): Using r5 hash to sort names [ 262.584027][ T9543] REISERFS (device loop1): using ordered data mode [pid 9544] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9544] close(3) = 0 [pid 9544] mkdir("./file0", 0777) = 0 [ 262.591482][ T9540] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 262.597925][ T9539] REISERFS (device loop0): Using r5 hash to sort names [ 262.610341][ T9544] loop5: detected capacity change from 0 to 8192 [ 262.616571][ T9539] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 262.623384][ T9543] reiserfs: using flush barriers [ 262.636318][ T9539] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9544] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9539] <... mount resumed>) = 0 [pid 9539] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9540] <... mount resumed>) = 0 [pid 9540] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9540] chdir("./file0") = 0 [pid 9540] ioctl(4, LOOP_CLR_FD) = 0 [pid 9540] close(4) = 0 [pid 9540] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] <... futex resumed>) = 0 [pid 9538] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9538] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9540] <... futex resumed>) = 1 [pid 9540] mkdir("./file1", 000 [pid 9539] <... openat resumed>) = 3 [pid 9540] <... mkdir resumed>) = 0 [pid 9540] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] <... futex resumed>) = 0 [pid 9538] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9538] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9540] <... futex resumed>) = 1 [pid 9540] mkdir("./bus", 000) = 0 [pid 9540] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] <... futex resumed>) = 0 [pid 9538] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9538] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9540] <... futex resumed>) = 1 [ 262.645115][ T9540] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 262.651419][ T9543] 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 [ 262.660090][ T9544] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 262.676155][ T9543] REISERFS (device loop1): checking transaction log (loop1) [pid 9540] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9539] chdir("./file0") = 0 [ 262.703681][ T9540] overlayfs: upper fs needs to support d_type. [ 262.707471][ T9544] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 262.710836][ T9540] overlayfs: upper fs does not support tmpfile. [ 262.720537][ T9543] REISERFS (device loop1): Using r5 hash to sort names [ 262.726792][ T9540] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.732606][ T9543] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9539] ioctl(4, LOOP_CLR_FD) = 0 [pid 9538] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9539] close(4 [pid 9538] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9539] <... close resumed>) = 0 [pid 9538] <... futex resumed>) = 0 [pid 9539] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9539] <... futex resumed>) = 1 [pid 9538] <... mmap resumed>) = 0x7f38d9b57000 [pid 9537] <... futex resumed>) = 0 [pid 9539] mkdir("./file1", 000 [pid 9538] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9537] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9539] <... mkdir resumed>) = 0 [pid 9538] <... mprotect resumed>) = 0 [pid 9537] <... futex resumed>) = 0 [pid 9539] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] 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 9537] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9539] <... futex resumed>) = 0 [pid 9537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9539] mkdir("./bus", 000 [pid 9538] <... clone resumed>, parent_tid=[9549], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9549 [pid 9537] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9537] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9539] <... mkdir resumed>) = 0 [pid 9538] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9539] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] <... futex resumed>) = 0 [pid 9539] <... futex resumed>) = 1 [pid 9538] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9537] <... futex resumed>) = 0 [pid 9539] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9537] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9537] <... futex resumed>) = 0 [pid 9539] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9537] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9540] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 9549 attached [ 262.741468][ T9540] overlayfs: failed to resolve './file0': -2 [ 262.752297][ T9543] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 262.779770][ T9539] overlayfs: upper fs needs to support d_type. [ 262.785108][ T9544] REISERFS (device loop5): using ordered data mode [ 262.792839][ T9544] reiserfs: using flush barriers [pid 9540] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9549] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9549] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9549] 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 9540] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9549] <... mount resumed>) = 0 [pid 9549] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9549] chdir(".") = 0 [pid 9549] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9538] <... futex resumed>) = 0 [pid 9549] <... futex resumed>) = 1 [pid 9538] exit_group(0 [pid 9537] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9538] <... exit_group resumed>) = ? [pid 9537] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9549] +++ exited with 0 +++ [pid 9537] <... futex resumed>) = 0 [pid 9537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9537] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9540] <... futex resumed>) = ? [pid 9537] 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=[9550], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9550 [pid 9540] +++ exited with 0 +++ [pid 9538] +++ exited with 0 +++ [pid 9537] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9538, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9537] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./260", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./260", 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("./260/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9543] <... mount resumed>) = 0 [pid 5000] lstat("./260/binderfs", [pid 9543] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9543] <... openat resumed>) = 3 [pid 5000] unlink("./260/binderfs" [pid 9543] chdir("./file0" [pid 5000] <... unlink resumed>) = 0 [ 262.798881][ T9544] 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 [ 262.801861][ T9539] overlayfs: upper fs does not support tmpfile. [ 262.815697][ T9544] REISERFS (device loop5): checking transaction log (loop5) [ 262.835200][ T9544] REISERFS (device loop5): Using r5 hash to sort names [pid 9543] <... chdir resumed>) = 0 [pid 5000] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9543] ioctl(4, LOOP_CLR_FD) = 0 [pid 9543] close(4) = 0 [pid 9543] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9543] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9550 attached [pid 9550] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9550] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9550] 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 9542] <... futex resumed>) = 0 [pid 9542] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9543] <... futex resumed>) = 0 [pid 9542] <... futex resumed>) = 1 [pid 9542] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9543] mkdir("./file1", 000) = 0 [pid 9543] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9542] <... futex resumed>) = 0 [pid 9543] mkdir("./bus", 000 [pid 9542] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9543] <... mkdir resumed>) = 0 [pid 9542] <... futex resumed>) = 0 [pid 9543] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9543] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9544] <... mount resumed>) = 0 [pid 9544] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9542] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9550] <... mount resumed>) = 0 [pid 9542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9542] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9550] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9543] <... futex resumed>) = 0 [pid 9542] <... futex resumed>) = 1 [pid 9542] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9550] <... openat resumed>) = 4 [pid 9543] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9550] chdir(".") = 0 [pid 9550] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9537] <... futex resumed>) = 0 [pid 9550] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9544] <... openat resumed>) = 3 [pid 9544] chdir("./file0") = 0 [ 262.844516][ T9544] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 262.864209][ T9544] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 262.868217][ T9539] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.892182][ T9539] overlayfs: failed to resolve './file0': -2 [pid 9544] ioctl(4, LOOP_CLR_FD) = 0 [pid 9544] close(4) = 0 [pid 9544] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9541] <... futex resumed>) = 0 [pid 9541] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9541] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9544] <... futex resumed>) = 1 [pid 9544] mkdir("./file1", 000) = 0 [pid 9544] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9541] <... futex resumed>) = 0 [pid 9541] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9541] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9544] <... futex resumed>) = 1 [pid 9544] mkdir("./bus", 000) = 0 [pid 9544] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9541] <... futex resumed>) = 0 [ 262.901389][ T9543] overlayfs: upper fs needs to support d_type. [pid 9544] <... futex resumed>) = 1 [pid 9541] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9544] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9541] <... futex resumed>) = 0 [pid 9541] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9539] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9539] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9539] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9542] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9542] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9537] exit_group(0 [pid 9550] <... futex resumed>) = ? [pid 9542] <... futex resumed>) = 0 [pid 9539] <... futex resumed>) = ? [pid 9537] <... exit_group resumed>) = ? [pid 9550] +++ exited with 0 +++ [pid 9542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9539] +++ exited with 0 +++ [pid 9537] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9537, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 9542] <... mmap resumed>) = 0x7f38d9b57000 [pid 9542] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4998] <... restart_syscall resumed>) = 0 [pid 9542] <... mprotect resumed>) = 0 [pid 4998] umount2("./259", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9542] 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 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9542] <... clone resumed>, parent_tid=[9551], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9551 [pid 4998] fstat(3, [pid 9542] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9542] <... futex resumed>) = 0 [pid 4998] getdents64(3, [pid 9542] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./259/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./259/binderfs") = 0 [pid 4998] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9551 attached [pid 5000] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9551] set_robust_list(0x7f38d9b779e0, 24 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9551] <... set_robust_list resumed>) = 0 [pid 5000] lstat("./260/file0", [pid 9551] mkdir(".", 0777 [ 262.927549][ T9543] overlayfs: upper fs does not support tmpfile. [ 262.934192][ T9543] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.942111][ T9544] overlayfs: upper fs needs to support d_type. [ 262.965023][ T9543] overlayfs: failed to resolve './file0': -2 [ 262.970277][ T9544] overlayfs: upper fs does not support tmpfile. [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9551] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9543] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9551] 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 9543] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9551] <... mount resumed>) = 0 [pid 9543] <... futex resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./260/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9551] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9543] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... openat resumed>) = 4 [pid 9551] <... openat resumed>) = 4 [pid 9541] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5000] fstat(4, [pid 9551] chdir("." [pid 9541] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9551] <... chdir resumed>) = 0 [pid 9541] <... futex resumed>) = 0 [pid 5000] getdents64(4, [pid 9551] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9551] <... futex resumed>) = 1 [pid 9542] <... futex resumed>) = 0 [pid 5000] getdents64(4, [pid 9551] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9542] exit_group(0 [pid 9541] <... mmap resumed>) = 0x7f38d9b57000 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9551] <... futex resumed>) = ? [pid 9543] <... futex resumed>) = ? [pid 9542] <... exit_group resumed>) = ? [pid 9541] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5000] close(4 [pid 9551] +++ exited with 0 +++ [pid 9543] +++ exited with 0 +++ [pid 9542] +++ exited with 0 +++ [pid 9541] <... mprotect resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9541] 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] rmdir("./260/file0") = 0 [pid 9541] <... clone resumed>, parent_tid=[9552], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9552 [pid 5000] getdents64(3, [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9542, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 9541] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9541] <... futex resumed>) = 0 [pid 5000] close(3 [pid 4999] umount2("./259", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9541] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./260" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./261", 0777 [pid 4999] openat(AT_FDCWD, "./259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... mkdir resumed>) = 0 [pid 9544] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... openat resumed>) = 3 [pid 9544] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 4999] fstat(3, [pid 9544] <... futex resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9544] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] close(3./strace-static-x86_64: Process 9552 attached ) = 0 [pid 4999] getdents64(3, [pid 4998] <... umount2 resumed>) = 0 [pid 9552] set_robust_list(0x7f38d9b779e0, 24 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9552] <... set_robust_list resumed>) = 0 [pid 4999] umount2("./259/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9552] mkdir(".", 0777 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9552] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4999] lstat("./259/binderfs", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9552] 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] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9553 [pid 4999] unlink("./259/binderfs" [pid 4998] lstat("./259/file0", [pid 4999] <... unlink resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./259/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("./259/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./259") = 0 [pid 4998] mkdir("./260", 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) = 9554 ./strace-static-x86_64: Process 9553 attached [pid 9553] set_robust_list(0x555556b565e0, 24) = 0 [pid 9553] chdir("./261") = 0 [pid 9553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9553] setpgid(0, 0) = 0 [pid 9553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9553] write(3, "1000", 4) = 4 [pid 9553] close(3) = 0 [pid 9553] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9553] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9553] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9553] 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=[9555], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9555 [pid 9553] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9553] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9555 attached [pid 9555] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9555] memfd_create("syzkaller", 0) = 3 [ 262.978482][ T9544] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 262.987555][ T9544] overlayfs: failed to resolve './file0': -2 [pid 9555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9552] <... mount resumed>) = 0 [pid 9552] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9552] chdir(".") = 0 [pid 9552] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9541] <... futex resumed>) = 0 [pid 9541] exit_group(0 [pid 9544] <... futex resumed>) = ? [pid 9541] <... exit_group resumed>) = ? [pid 9544] +++ exited with 0 +++ ./strace-static-x86_64: Process 9554 attached [pid 9552] +++ exited with 0 +++ [pid 9541] +++ exited with 0 +++ [pid 9554] set_robust_list(0x555556b565e0, 24 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9541, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 9554] <... set_robust_list resumed>) = 0 [pid 5003] <... restart_syscall resumed>) = 0 [pid 9554] chdir("./260" [pid 5003] umount2("./259", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, [pid 9554] <... chdir resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, [pid 9554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./259/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9554] <... prctl resumed>) = 0 [pid 5003] unlink("./259/binderfs" [pid 9554] setpgid(0, 0 [pid 5003] <... unlink resumed>) = 0 [pid 9554] <... setpgid resumed>) = 0 [pid 5003] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9554] write(3, "1000", 4) = 4 [pid 9554] close(3) = 0 [pid 9554] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9554] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9554] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9554] 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] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9554] <... clone resumed>, parent_tid=[9556], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9556 [pid 9554] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] lstat("./259/file0", [pid 9554] <... futex resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9554] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./259/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, ./strace-static-x86_64: Process 9556 attached 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9556] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9556] memfd_create("syzkaller", 0 [pid 4999] close(4 [pid 9556] <... memfd_create resumed>) = 3 [pid 9556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./259/file0") = 0 [pid 4999] getdents64(3, [pid 9556] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./259") = 0 [pid 9555] 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] mkdir("./260", 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) = 9557 ./strace-static-x86_64: Process 9557 attached [pid 9557] set_robust_list(0x555556b565e0, 24) = 0 [pid 9557] chdir("./260") = 0 [pid 9557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9557] setpgid(0, 0) = 0 [pid 9557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9557] write(3, "1000", 4) = 4 [pid 9557] close(3) = 0 [pid 9557] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9557] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9557] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9557] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9557] 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=[9558], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9558 [pid 9557] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9557] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./259/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9558 attached [pid 9558] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./259/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9558] <... set_robust_list resumed>) = 0 [pid 5003] <... openat resumed>) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, [pid 9558] memfd_create("syzkaller", 0) = 3 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./259/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./259") = 0 [pid 5003] mkdir("./260", 0777 [pid 9556] 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] <... 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) = 9559 ./strace-static-x86_64: Process 9559 attached [pid 9559] set_robust_list(0x555556b565e0, 24) = 0 [pid 9559] chdir("./260") = 0 [pid 9559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9559] setpgid(0, 0) = 0 [pid 9559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9555] <... write resumed>) = 4194304 [pid 9559] <... openat resumed>) = 3 [pid 9555] munmap(0x7f38d9778000, 4194304 [pid 9559] write(3, "1000", 4) = 4 [pid 9559] close(3) = 0 [pid 9559] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9559] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9555] <... munmap resumed>) = 0 [pid 9559] <... futex resumed>) = 0 [pid 9559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9555] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9559] <... mmap resumed>) = 0x7f38e1b78000 [pid 9555] <... openat resumed>) = 4 [pid 9559] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9555] ioctl(4, LOOP_SET_FD, 3 [pid 9559] 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=[9560], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9560 [pid 9559] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9559] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9560 attached [pid 9560] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9560] memfd_create("syzkaller", 0) = 3 [pid 9560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9555] <... ioctl resumed>) = 0 [pid 9555] close(3) = 0 [pid 9555] mkdir("./file0", 0777) = 0 [pid 9555] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 263.193234][ T9555] loop2: detected capacity change from 0 to 8192 [ 263.215171][ T9555] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9558] 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 9556] <... write resumed>) = 4194304 [pid 9556] munmap(0x7f38d9778000, 4194304) = 0 [pid 9556] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9556] ioctl(4, LOOP_SET_FD, 3 [ 263.241219][ T9555] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 263.251305][ T9555] REISERFS (device loop2): using ordered data mode [ 263.257878][ T9555] reiserfs: using flush barriers [ 263.259310][ T9556] loop0: detected capacity change from 0 to 8192 [ 263.264008][ T9555] 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 [ 263.286272][ T9555] REISERFS (device loop2): checking transaction log (loop2) [pid 9560] 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 9558] <... write resumed>) = 4194304 [pid 9558] munmap(0x7f38d9778000, 4194304 [pid 9556] <... ioctl resumed>) = 0 [pid 9556] close(3) = 0 [pid 9556] mkdir("./file0", 0777) = 0 [pid 9558] <... munmap resumed>) = 0 [pid 9558] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9558] ioctl(4, LOOP_SET_FD, 3 [pid 9556] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9555] <... mount resumed>) = 0 [pid 9555] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 263.294243][ T9555] REISERFS (device loop2): Using r5 hash to sort names [ 263.301345][ T9555] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 263.314107][ T9555] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 263.314665][ T9558] loop1: detected capacity change from 0 to 8192 [pid 9555] chdir("./file0") = 0 [pid 9560] <... write resumed>) = 4194304 [pid 9558] <... ioctl resumed>) = 0 [pid 9555] ioctl(4, LOOP_CLR_FD [pid 9560] munmap(0x7f38d9778000, 4194304 [pid 9555] <... ioctl resumed>) = 0 [pid 9560] <... munmap resumed>) = 0 [pid 9555] close(4 [pid 9560] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9555] <... close resumed>) = 0 [pid 9560] <... openat resumed>) = 4 [pid 9555] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9560] ioctl(4, LOOP_SET_FD, 3 [pid 9555] <... futex resumed>) = 1 [pid 9555] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9553] <... futex resumed>) = 0 [pid 9560] <... ioctl resumed>) = 0 [pid 9560] close(3) = 0 [pid 9560] mkdir("./file0", 0777) = 0 [pid 9558] close(3) = 0 [pid 9558] mkdir("./file0", 0777) = 0 [pid 9560] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9558] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9553] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9555] <... futex resumed>) = 0 [pid 9553] <... futex resumed>) = 1 [ 263.334162][ T9556] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 263.344650][ T9560] loop5: detected capacity change from 0 to 8192 [ 263.350705][ T9556] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 263.363702][ T9556] REISERFS (device loop0): using ordered data mode [ 263.366675][ T9560] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 263.373339][ T9556] reiserfs: using flush barriers [pid 9555] mkdir("./file1", 000 [pid 9553] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9555] <... mkdir resumed>) = 0 [pid 9555] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9553] <... futex resumed>) = 0 [pid 9555] mkdir("./bus", 000 [pid 9553] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9555] <... mkdir resumed>) = 0 [pid 9553] <... futex resumed>) = 0 [pid 9555] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9553] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9555] <... futex resumed>) = 0 [pid 9553] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 263.383695][ T9560] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 263.390108][ T9558] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 263.410998][ T9560] REISERFS (device loop5): using ordered data mode [ 263.412013][ T9556] 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 [ 263.417975][ T9560] reiserfs: using flush barriers [pid 9555] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9553] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 263.439396][ T9555] overlayfs: upper fs needs to support d_type. [ 263.439620][ T9558] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 263.445607][ T9555] overlayfs: upper fs does not support tmpfile. [ 263.455003][ T9556] REISERFS (device loop0): checking transaction log (loop0) [ 263.461881][ T9555] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 263.468464][ T9560] 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 9553] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9555] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9555] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9553] <... futex resumed>) = 0 [pid 9555] mkdir(".", 0777 [pid 9553] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9555] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9553] <... futex resumed>) = 0 [pid 9555] 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, "" [ 263.476487][ T9555] overlayfs: failed to resolve './file0': -2 [ 263.492921][ T9558] REISERFS (device loop1): using ordered data mode [ 263.500881][ T9560] REISERFS (device loop5): checking transaction log (loop5) [ 263.505368][ T9558] reiserfs: using flush barriers [ 263.513772][ T9556] REISERFS (device loop0): Using r5 hash to sort names [ 263.517772][ T9558] 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 9553] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9556] <... mount resumed>) = 0 [pid 9556] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9556] chdir("./file0") = 0 [pid 9556] ioctl(4, LOOP_CLR_FD) = 0 [ 263.526244][ T9556] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 263.554357][ T9558] REISERFS (device loop1): checking transaction log (loop1) [ 263.555935][ T9556] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 263.562930][ T9558] REISERFS (device loop1): Using r5 hash to sort names [ 263.578807][ T9560] REISERFS (device loop5): Using r5 hash to sort names [pid 9556] close(4) = 0 [pid 9556] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9556] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9558] <... mount resumed>) = 0 [pid 9554] <... futex resumed>) = 0 [pid 9554] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9554] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9558] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9558] chdir("./file0") = 0 [pid 9558] ioctl(4, LOOP_CLR_FD) = 0 [pid 9558] close(4 [pid 9560] <... mount resumed>) = 0 [pid 9558] <... close resumed>) = 0 [pid 9556] <... futex resumed>) = 0 [pid 9555] <... mount resumed>) = 0 [pid 9556] mkdir("./file1", 000 [pid 9555] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9556] <... mkdir resumed>) = 0 [pid 9555] <... openat resumed>) = 4 [pid 9556] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9555] chdir("." [pid 9556] <... futex resumed>) = 1 [pid 9555] <... chdir resumed>) = 0 [pid 9554] <... futex resumed>) = 0 [pid 9556] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9555] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9554] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9555] <... futex resumed>) = 1 [pid 9554] <... futex resumed>) = 0 [pid 9553] <... futex resumed>) = 0 [pid 9556] mkdir("./bus", 000 [pid 9555] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9554] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9556] <... mkdir resumed>) = 0 [pid 9553] exit_group(0 [pid 9556] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9555] <... futex resumed>) = ? [pid 9553] <... exit_group resumed>) = ? [pid 9556] <... futex resumed>) = 1 [pid 9555] +++ exited with 0 +++ [pid 9554] <... futex resumed>) = 0 [pid 9554] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9554] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9556] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9553] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9553, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./261", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./261", 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("./261/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./261/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./261/binderfs") = 0 [ 263.578917][ T9558] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 263.585918][ T9560] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 263.602242][ T9558] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 263.614686][ T9560] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9560] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9560] chdir("./file0") = 0 [pid 9560] ioctl(4, LOOP_CLR_FD) = 0 [pid 9560] close(4) = 0 [pid 9560] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9560] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9558] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9557] <... futex resumed>) = 0 [pid 9558] mkdir("./file1", 000 [pid 9557] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9558] <... mkdir resumed>) = 0 [pid 9557] <... futex resumed>) = 0 [pid 9558] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9557] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9558] <... futex resumed>) = 0 [pid 9557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9558] mkdir("./bus", 000 [pid 9557] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9559] <... futex resumed>) = 0 [pid 9558] <... mkdir resumed>) = 0 [pid 9557] <... futex resumed>) = 0 [pid 9558] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9557] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9558] <... futex resumed>) = 0 [pid 9557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9558] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9557] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9559] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9557] <... futex resumed>) = 0 [pid 9557] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9560] <... futex resumed>) = 0 [pid 9559] <... futex resumed>) = 1 [pid 9560] mkdir("./file1", 000 [pid 9559] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9554] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9560] <... mkdir resumed>) = 0 [pid 9560] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9559] <... futex resumed>) = 0 [pid 9560] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9559] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9559] <... futex resumed>) = 0 [pid 9560] mkdir("./bus", 000 [ 263.646380][ T9556] overlayfs: upper fs needs to support d_type. [ 263.657531][ T9556] overlayfs: upper fs does not support tmpfile. [ 263.661675][ T9558] overlayfs: upper fs needs to support d_type. [ 263.670496][ T9556] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 263.675438][ T9558] overlayfs: upper fs does not support tmpfile. [ 263.684246][ T9556] overlayfs: failed to resolve './file0': -2 [pid 9559] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9554] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9560] <... mkdir resumed>) = 0 [pid 9554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9554] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9554] 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=[9565], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9565 [pid 9554] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9554] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9565 attached [pid 9565] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9565] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9565] 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 9560] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9559] <... futex resumed>) = 0 [pid 9559] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9560] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9559] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9565] <... mount resumed>) = 0 [pid 9565] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9565] chdir(".") = 0 [pid 9565] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9554] <... futex resumed>) = 0 [pid 9565] <... futex resumed>) = 1 [pid 9557] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9557] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9557] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9557] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9557] 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=[9566], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9566 [pid 9557] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9557] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9565] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9566 attached [pid 9566] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9566] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9566] 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 9566] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9566] chdir(".") = 0 [pid 9566] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9557] <... futex resumed>) = 0 [pid 9566] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./261/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9556] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9556] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] openat(AT_FDCWD, "./261/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9556] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 9556] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9554] exit_group(0 [pid 9565] <... futex resumed>) = ? [pid 9556] <... futex resumed>) = ? [pid 9554] <... exit_group resumed>) = ? [pid 5000] fstat(4, [pid 9565] +++ exited with 0 +++ [ 263.693551][ T9558] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 263.716812][ T9560] overlayfs: upper fs needs to support d_type. [ 263.723236][ T9560] overlayfs: upper fs does not support tmpfile. [pid 9556] +++ exited with 0 +++ [pid 9554] +++ exited with 0 +++ [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9559] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5000] getdents64(4, [pid 9559] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9554, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9559] <... futex resumed>) = 0 [pid 5000] getdents64(4, [pid 4998] umount2("./260", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] close(4 [pid 4998] openat(AT_FDCWD, "./260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5000] rmdir("./261/file0" [pid 4998] fstat(3, [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 4998] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] close(3 [pid 4998] umount2("./260/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] rmdir("./261" [pid 4998] lstat("./260/binderfs", [pid 9559] <... mmap resumed>) = 0x7f38d9b57000 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] mkdir("./262", 0777 [pid 4998] unlink("./260/binderfs" [pid 9559] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3) = 0 [pid 9559] <... mprotect resumed>) = 0 [pid 9558] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9559] 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 9558] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9568 attached ./strace-static-x86_64: Process 9567 attached [pid 9560] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9558] <... futex resumed>) = 0 [pid 9557] exit_group(0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9567 [pid 9568] set_robust_list(0x7f38d9b779e0, 24 [pid 9567] set_robust_list(0x555556b565e0, 24 [pid 9566] <... futex resumed>) = ? [pid 9560] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9559] <... clone resumed>, parent_tid=[9568], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9568 [pid 9557] <... exit_group resumed>) = ? [pid 9568] <... set_robust_list resumed>) = 0 [pid 9567] <... set_robust_list resumed>) = 0 [pid 9566] +++ exited with 0 +++ [pid 9560] <... futex resumed>) = 0 [pid 9559] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9558] +++ exited with 0 +++ [pid 9557] +++ exited with 0 +++ [pid 9568] mkdir(".", 0777 [pid 9567] chdir("./262" [pid 9560] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9559] <... futex resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9557, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 9568] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9567] <... chdir resumed>) = 0 [pid 9559] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9568] 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 9567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] <... umount2 resumed>) = 0 [pid 9567] <... prctl resumed>) = 0 [pid 4999] umount2("./260", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9567] setpgid(0, 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9567] <... setpgid resumed>) = 0 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(3, [pid 9567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9568] <... mount resumed>) = 0 [pid 9567] <... openat resumed>) = 3 [pid 4999] umount2("./260/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9568] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9567] write(3, "1000", 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9568] <... openat resumed>) = 4 [pid 9567] <... write resumed>) = 4 [pid 4999] lstat("./260/binderfs", [pid 4998] lstat("./260/file0", [pid 9568] chdir("." [pid 9567] close(3 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9568] <... chdir resumed>) = 0 [pid 9567] <... close resumed>) = 0 [pid 4999] unlink("./260/binderfs" [pid 4998] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9568] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9567] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9568] <... futex resumed>) = 1 [pid 9567] <... symlink resumed>) = 0 [pid 9559] <... futex resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./260/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9568] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9567] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9559] exit_group(0 [pid 4999] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9568] <... futex resumed>) = ? [pid 9567] <... futex resumed>) = 0 [pid 9560] <... futex resumed>) = ? [pid 9559] <... exit_group resumed>) = ? [pid 4998] <... openat resumed>) = 4 [pid 9568] +++ exited with 0 +++ [pid 9567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9560] +++ exited with 0 +++ [pid 9559] +++ exited with 0 +++ [pid 4998] fstat(4, [pid 9567] <... mmap resumed>) = 0x7f38e1b78000 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9567] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9559, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 4998] getdents64(4, [pid 9567] <... mprotect resumed>) = 0 [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9567] 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] <... restart_syscall resumed>) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9567] <... clone resumed>, parent_tid=[9569], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9569 [pid 4998] close(4 [pid 9567] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./260", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 9567] <... futex resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] rmdir("./260/file0" [pid 9567] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] openat(AT_FDCWD, "./260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 9569 attached [pid 5003] <... openat resumed>) = 3 [pid 4998] getdents64(3, [pid 5003] fstat(3, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] close(3 [pid 5003] getdents64(3, [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./260" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... rmdir resumed>) = 0 [pid 5003] umount2("./260/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] mkdir("./261", 0777 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 263.767719][ T9558] overlayfs: failed to resolve './file0': -2 [ 263.774293][ T9560] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 263.795699][ T9560] overlayfs: failed to resolve './file0': -2 [pid 4998] <... mkdir resumed>) = 0 [pid 9569] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] lstat("./260/binderfs", [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9569] <... set_robust_list resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9569] memfd_create("syzkaller", 0 [pid 5003] unlink("./260/binderfs" [pid 4998] close(3 [pid 9569] <... memfd_create resumed>) = 3 [pid 5003] <... unlink resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5003] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9569] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./260/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9570 [pid 4999] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./260/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./strace-static-x86_64: Process 9570 attached ) = 0 [pid 4999] rmdir("./260/file0" [pid 9570] set_robust_list(0x555556b565e0, 24 [pid 4999] <... rmdir resumed>) = 0 [pid 9570] <... set_robust_list resumed>) = 0 [pid 4999] getdents64(3, [pid 9570] chdir("./261" [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9570] <... chdir resumed>) = 0 [pid 4999] close(3 [pid 9570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./260" [pid 9570] <... prctl resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9570] setpgid(0, 0 [pid 4999] mkdir("./261", 0777) = 0 [pid 9570] <... setpgid 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 [pid 9570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9570] <... openat resumed>) = 3 [pid 9570] write(3, "1000", 4 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9571 [pid 9570] <... write resumed>) = 4 [pid 9570] close(3) = 0 ./strace-static-x86_64: Process 9571 attached [pid 9570] symlink("/dev/binderfs", "./binderfs" [pid 9571] set_robust_list(0x555556b565e0, 24 [pid 9570] <... symlink resumed>) = 0 [pid 9570] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9571] <... set_robust_list resumed>) = 0 [pid 9570] <... mmap resumed>) = 0x7f38e1b78000 [pid 9570] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9571] chdir("./261" [pid 9570] <... mprotect resumed>) = 0 [pid 9570] 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=[9572], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9572 [pid 9570] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9570] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9571] <... chdir resumed>) = 0 [pid 9571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9571] setpgid(0, 0) = 0 [pid 9571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9571] write(3, "1000", 4) = 4 [pid 9571] close(3) = 0 [pid 9571] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9571] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9571] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9571] 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=[9573], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9573 [pid 9571] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9571] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9572 attached [pid 9572] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9572] memfd_create("syzkaller", 0) = 3 [pid 9572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9569] 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 9573 attached [pid 9573] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9573] memfd_create("syzkaller", 0) = 3 [pid 9573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./260/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./260/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("./260/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./260") = 0 [pid 5003] mkdir("./261", 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 9573] 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 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9574 [pid 9569] <... write resumed>) = 4194304 [pid 9569] munmap(0x7f38d9778000, 4194304 [pid 9572] 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 9574 attached [pid 9574] set_robust_list(0x555556b565e0, 24) = 0 [pid 9574] chdir("./261" [pid 9569] <... munmap resumed>) = 0 [pid 9574] <... chdir resumed>) = 0 [pid 9569] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9569] <... openat resumed>) = 4 [pid 9574] setpgid(0, 0 [pid 9569] ioctl(4, LOOP_SET_FD, 3 [pid 9574] <... setpgid resumed>) = 0 [pid 9573] <... write resumed>) = 4194304 [pid 9574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9574] write(3, "1000", 4) = 4 [pid 9574] close(3) = 0 [pid 9569] <... ioctl resumed>) = 0 [pid 9574] symlink("/dev/binderfs", "./binderfs" [pid 9569] close(3 [pid 9574] <... symlink resumed>) = 0 [pid 9574] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] <... close resumed>) = 0 [pid 9574] <... futex resumed>) = 0 [pid 9569] mkdir("./file0", 0777 [pid 9574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9574] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9573] munmap(0x7f38d9778000, 4194304 [pid 9574] <... mprotect resumed>) = 0 [pid 9574] 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=[9575], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9575 [pid 9574] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] <... mkdir resumed>) = 0 [pid 9574] <... futex resumed>) = 0 [pid 9574] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9569] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9573] <... munmap resumed>) = 0 [pid 9573] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9573] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9575 attached [pid 9572] <... write resumed>) = 4194304 [pid 9575] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9575] memfd_create("syzkaller", 0) = 3 [pid 9575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9572] munmap(0x7f38d9778000, 4194304) = 0 [pid 9572] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 264.001337][ T9569] loop2: detected capacity change from 0 to 8192 [ 264.019512][ T9573] loop1: detected capacity change from 0 to 8192 [ 264.026708][ T9569] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.035363][ T9572] loop0: detected capacity change from 0 to 8192 [pid 9572] ioctl(4, LOOP_SET_FD, 3 [pid 9573] <... ioctl resumed>) = 0 [pid 9573] close(3) = 0 [pid 9573] mkdir("./file0", 0777) = 0 [pid 9573] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9575] 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 9572] <... ioctl resumed>) = 0 [pid 9572] close(3) = 0 [pid 9572] mkdir("./file0", 0777) = 0 [ 264.040157][ T9569] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 264.056441][ T9569] REISERFS (device loop2): using ordered data mode [ 264.063313][ T9569] reiserfs: using flush barriers [ 264.063775][ T9573] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.082242][ T9569] 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 [ 264.098602][ T9573] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 264.099094][ T9572] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.108169][ T9573] REISERFS (device loop1): using ordered data mode [ 264.127908][ T9573] reiserfs: using flush barriers [ 264.133766][ T9573] 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 9572] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9575] <... write resumed>) = 4194304 [pid 9575] munmap(0x7f38d9778000, 4194304) = 0 [pid 9575] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 264.150893][ T9573] REISERFS (device loop1): checking transaction log (loop1) [ 264.158973][ T9569] REISERFS (device loop2): checking transaction log (loop2) [ 264.161095][ T9573] REISERFS (device loop1): Using r5 hash to sort names [ 264.166561][ T9572] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 264.174063][ T9569] REISERFS (device loop2): Using r5 hash to sort names [ 264.182596][ T9572] REISERFS (device loop0): using ordered data mode [ 264.194133][ T9575] loop5: detected capacity change from 0 to 8192 [pid 9575] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9575] close(3) = 0 [pid 9575] mkdir("./file0", 0777) = 0 [ 264.195900][ T9572] reiserfs: using flush barriers [ 264.203174][ T9573] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 264.220285][ T9572] 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 [ 264.221264][ T9569] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9575] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9573] <... mount resumed>) = 0 [pid 9573] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9573] chdir("./file0") = 0 [pid 9573] ioctl(4, LOOP_CLR_FD) = 0 [pid 9573] close(4) = 0 [pid 9573] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9571] <... futex resumed>) = 0 [pid 9571] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9571] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9573] <... futex resumed>) = 1 [pid 9573] mkdir("./file1", 000) = 0 [pid 9573] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9571] <... futex resumed>) = 0 [pid 9571] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9571] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9573] <... futex resumed>) = 1 [pid 9573] mkdir("./bus", 000) = 0 [pid 9573] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9571] <... futex resumed>) = 0 [pid 9571] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9571] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9573] <... futex resumed>) = 1 [ 264.236865][ T9572] REISERFS (device loop0): checking transaction log (loop0) [ 264.253860][ T9573] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 264.257777][ T9572] REISERFS (device loop0): Using r5 hash to sort names [ 264.275636][ T9575] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.289199][ T9573] overlayfs: upper fs needs to support d_type. [pid 9573] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9571] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9571] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9571] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9571] 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=[9580], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9580 [pid 9571] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 264.289472][ T9575] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 264.296947][ T9569] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 264.304862][ T9575] REISERFS (device loop5): using ordered data mode [ 264.318815][ T9573] overlayfs: upper fs does not support tmpfile. [ 264.320473][ T9575] reiserfs: using flush barriers [ 264.333826][ T9572] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9571] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9580 attached [pid 9580] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9580] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9580] 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 9580] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9580] chdir(".") = 0 [pid 9580] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9571] <... futex resumed>) = 0 [pid 9580] <... futex resumed>) = 1 [pid 9580] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9569] <... mount resumed>) = 0 [pid 9569] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9569] chdir("./file0" [pid 9572] <... mount resumed>) = 0 [pid 9569] <... chdir resumed>) = 0 [pid 9572] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9572] chdir("./file0") = 0 [pid 9572] ioctl(4, LOOP_CLR_FD) = 0 [ 264.346940][ T9575] 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 [ 264.355381][ T9573] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 264.372949][ T9572] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 264.373134][ T9575] REISERFS (device loop5): checking transaction log (loop5) [ 264.384595][ T9573] overlayfs: failed to resolve './file0': -2 [ 264.391185][ T9575] REISERFS (device loop5): Using r5 hash to sort names [pid 9572] close(4) = 0 [pid 9569] ioctl(4, LOOP_CLR_FD [pid 9572] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9570] <... futex resumed>) = 0 [pid 9572] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9570] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9570] <... futex resumed>) = 0 [pid 9572] mkdir("./file1", 000 [pid 9570] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9572] <... mkdir resumed>) = 0 [pid 9572] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9570] <... futex resumed>) = 0 [pid 9572] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9570] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9570] <... futex resumed>) = 0 [pid 9569] <... ioctl resumed>) = 0 [pid 9572] mkdir("./bus", 000 [pid 9570] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9569] close(4 [pid 9572] <... mkdir resumed>) = 0 [pid 9569] <... close resumed>) = 0 [pid 9575] <... mount resumed>) = 0 [pid 9572] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9575] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9572] <... futex resumed>) = 1 [pid 9570] <... futex resumed>) = 0 [pid 9569] <... futex resumed>) = 1 [pid 9567] <... futex resumed>) = 0 [pid 9575] <... openat resumed>) = 3 [pid 9572] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9570] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9567] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9575] chdir("./file0" [pid 9572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9570] <... futex resumed>) = 0 [pid 9569] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9567] <... futex resumed>) = 0 [ 264.403902][ T9575] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 264.417889][ T9575] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9575] <... chdir resumed>) = 0 [pid 9572] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9570] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9569] mkdir("./file1", 000 [pid 9567] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9575] ioctl(4, LOOP_CLR_FD) = 0 [pid 9575] close(4) = 0 [pid 9569] <... mkdir resumed>) = 0 [pid 9575] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9573] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9569] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9575] <... futex resumed>) = 1 [pid 9575] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9574] <... futex resumed>) = 0 [pid 9569] <... futex resumed>) = 1 [pid 9574] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9567] <... futex resumed>) = 0 [pid 9574] <... futex resumed>) = 1 [pid 9573] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9567] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9575] <... futex resumed>) = 0 [pid 9575] mkdir("./file1", 000) = 0 [pid 9567] <... futex resumed>) = 0 [pid 9573] <... futex resumed>) = 0 [pid 9569] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9575] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9571] exit_group(0 [pid 9567] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9573] ???( [pid 9580] <... futex resumed>) = ? [pid 9574] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9571] <... exit_group resumed>) = ? [pid 9573] <... ??? resumed>) = ? [pid 9569] mkdir("./bus", 000 [pid 9580] +++ exited with 0 +++ [pid 9573] +++ exited with 0 +++ [pid 9575] <... futex resumed>) = 0 [pid 9575] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9569] <... mkdir resumed>) = 0 [pid 9574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9571] +++ exited with 0 +++ [pid 9574] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9571, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 9575] <... futex resumed>) = 0 [pid 9574] <... futex resumed>) = 1 [pid 9569] <... futex resumed>) = 1 [pid 9567] <... futex resumed>) = 0 [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 9575] mkdir("./bus", 000 [pid 9574] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9569] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9567] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... restart_syscall resumed>) = 0 [pid 9575] <... mkdir resumed>) = 0 [pid 9567] <... futex resumed>) = 0 [pid 9575] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9567] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9575] <... futex resumed>) = 1 [pid 4999] umount2("./261", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9575] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./261", 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("./261/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./261/binderfs", [pid 9574] <... futex resumed>) = 0 [pid 9569] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./261/binderfs") = 0 [pid 4999] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 264.444734][ T9572] overlayfs: upper fs needs to support d_type. [ 264.456813][ T9572] overlayfs: upper fs does not support tmpfile. [ 264.463431][ T9572] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 264.480277][ T9569] overlayfs: upper fs needs to support d_type. [ 264.482814][ T9572] overlayfs: failed to resolve './file0': -2 [pid 9574] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9575] <... futex resumed>) = 0 [pid 9574] <... futex resumed>) = 1 [pid 9575] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9574] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9570] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9572] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9572] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9570] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9572] mkdir(".", 0777 [pid 9570] <... futex resumed>) = 0 [pid 9572] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9570] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9572] 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 9572] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9572] chdir(".") = 0 [pid 9572] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9572] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9570] <... futex resumed>) = 0 [pid 9570] exit_group(0 [pid 9572] <... futex resumed>) = ? [pid 9570] <... exit_group resumed>) = ? [pid 9572] +++ exited with 0 +++ [pid 9567] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9570] +++ exited with 0 +++ [pid 9567] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9570, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9567] <... futex resumed>) = 0 [pid 9567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4998] umount2("./261", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./261", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9567] <... mmap resumed>) = 0x7f38d9b57000 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./261/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./261/binderfs", [pid 9567] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./261/binderfs") = 0 [pid 4998] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9567] <... mprotect resumed>) = 0 [pid 9567] 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=[9581], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9581 [pid 9567] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9567] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9581 attached [pid 9581] set_robust_list(0x7f38d9b779e0, 24 [pid 4999] <... umount2 resumed>) = 0 [pid 9581] <... set_robust_list resumed>) = 0 [pid 4999] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9581] mkdir(".", 0777 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 264.494798][ T9569] overlayfs: upper fs does not support tmpfile. [ 264.496570][ T9575] overlayfs: upper fs needs to support d_type. [ 264.516133][ T9575] overlayfs: upper fs does not support tmpfile. [ 264.523169][ T9569] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 264.526432][ T9575] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9581] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4999] lstat("./261/file0", [pid 9581] 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 9574] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9574] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9574] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] openat(AT_FDCWD, "./261/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9574] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... openat resumed>) = 4 [pid 9574] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] fstat(4, [pid 9574] <... mprotect resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9574] 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 9574] <... clone resumed>, parent_tid=[9582], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9582 [pid 4999] getdents64(4, [pid 9574] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9574] <... futex resumed>) = 0 [pid 9581] <... mount resumed>) = 0 [pid 4999] close(4 [pid 9574] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./261/file0") = 0 [pid 4999] getdents64(3, ./strace-static-x86_64: Process 9582 attached [pid 9581] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./261") = 0 [pid 4999] mkdir("./262", 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 9582] set_robust_list(0x7f38d9b779e0, 24 [pid 9581] <... openat resumed>) = 4 [pid 4999] <... close resumed>) = 0 [pid 9582] <... set_robust_list resumed>) = 0 [pid 9581] chdir("." [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9582] mkdir(".", 0777 [pid 9581] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 9583 attached [pid 9582] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9581] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9583 [pid 4998] <... umount2 resumed>) = 0 [pid 9583] set_robust_list(0x555556b565e0, 24 [pid 9582] 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 9581] <... futex resumed>) = 1 [pid 9567] <... futex resumed>) = 0 [pid 4998] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9581] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9583] <... set_robust_list resumed>) = 0 [pid 9582] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9583] chdir("./262" [pid 9582] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4998] lstat("./261/file0", [pid 9583] <... chdir resumed>) = 0 [pid 9582] <... openat resumed>) = 4 [pid 9583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9582] chdir("." [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9583] <... prctl resumed>) = 0 [pid 9582] <... chdir resumed>) = 0 [pid 9575] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9583] setpgid(0, 0 [pid 9582] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9575] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9569] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9583] <... setpgid resumed>) = 0 [pid 9582] <... futex resumed>) = 1 [pid 9575] <... futex resumed>) = 0 [pid 9574] <... futex resumed>) = 0 [pid 9569] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9582] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9575] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9574] exit_group(0 [pid 9569] <... futex resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./261/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9583] <... openat resumed>) = 3 [pid 9582] <... futex resumed>) = ? [pid 9575] <... futex resumed>) = ? [pid 9574] <... exit_group resumed>) = ? [pid 9569] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9567] exit_group(0 [pid 4998] <... openat resumed>) = 4 [pid 9583] write(3, "1000", 4 [pid 9582] +++ exited with 0 +++ [pid 9581] <... futex resumed>) = ? [pid 9567] <... exit_group resumed>) = ? [pid 9581] +++ exited with 0 +++ [pid 9569] <... futex resumed>) = ? [pid 9583] <... write resumed>) = 4 [pid 9575] +++ exited with 0 +++ [pid 9574] +++ exited with 0 +++ [pid 4998] fstat(4, [pid 9583] close(3 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9583] <... close resumed>) = 0 [pid 4998] getdents64(4, [pid 9583] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9583] <... symlink resumed>) = 0 [pid 9569] +++ exited with 0 +++ [pid 9567] +++ exited with 0 +++ [pid 4998] getdents64(4, [pid 9583] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9574, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9567, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9583] <... futex resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4998] close(4 [pid 9583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9583] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] umount2("./261", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] rmdir("./261/file0" [pid 9583] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... rmdir resumed>) = 0 [pid 9583] <... mprotect resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./261", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] umount2("./262", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] getdents64(3, [pid 9583] 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] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] fstat(3, ./strace-static-x86_64: Process 9584 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] openat(AT_FDCWD, "./262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9584] set_robust_list(0x7f38e1b989e0, 24 [pid 9583] <... clone resumed>, parent_tid=[9584], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9584 [pid 5003] getdents64(3, [pid 5000] <... openat resumed>) = 3 [pid 4998] close(3 [pid 9584] <... set_robust_list resumed>) = 0 [pid 9583] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... close resumed>) = 0 [ 264.553652][ T9575] overlayfs: failed to resolve './file0': -2 [ 264.560016][ T9569] overlayfs: failed to resolve './file0': -2 [pid 9584] memfd_create("syzkaller", 0 [pid 9583] <... futex resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] fstat(3, [pid 4998] rmdir("./261" [pid 9584] <... memfd_create resumed>) = 3 [pid 9583] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] umount2("./261/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 9584] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] getdents64(3, [pid 4998] mkdir("./262", 0777 [pid 5003] lstat("./261/binderfs", [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] umount2("./262/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9584] <... mmap resumed>) = 0x7f38d9778000 [pid 5003] unlink("./261/binderfs" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... mkdir resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 5000] lstat("./262/binderfs", [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./262/binderfs" [pid 4998] <... openat resumed>) = 3 [pid 5000] <... unlink resumed>) = 0 [pid 5000] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9584] 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] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9585 ./strace-static-x86_64: Process 9585 attached [pid 9585] set_robust_list(0x555556b565e0, 24) = 0 [pid 9585] chdir("./262" [pid 5000] <... umount2 resumed>) = 0 [pid 9585] <... chdir resumed>) = 0 [pid 9585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9585] setpgid(0, 0) = 0 [pid 9585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9585] write(3, "1000", 4) = 4 [pid 9585] close(3) = 0 [pid 9585] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9585] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5000] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9585] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9585] <... mprotect resumed>) = 0 [pid 5000] lstat("./262/file0", [pid 9585] 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 resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9585] <... clone resumed>, parent_tid=[9586], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9586 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9585] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] openat(AT_FDCWD, "./262/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9585] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 9585] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [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("./262/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./262") = 0 [pid 5000] mkdir("./263", 0777) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 9586 attached ) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9586] set_robust_list(0x7f38e1b989e0, 24 [pid 5000] <... ioctl resumed>) = -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) = 9587 [pid 9586] <... set_robust_list resumed>) = 0 [pid 9586] memfd_create("syzkaller", 0) = 3 [pid 9586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./261/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9587 attached [pid 5003] umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./261/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9587] set_robust_list(0x555556b565e0, 24) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9587] chdir("./263") = 0 [pid 5003] getdents64(4, [pid 9587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9587] <... prctl resumed>) = 0 [pid 5003] close(4 [pid 9584] <... write resumed>) = 4194304 [pid 9584] munmap(0x7f38d9778000, 4194304 [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./261/file0") = 0 [pid 9587] setpgid(0, 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3 [pid 9587] <... setpgid resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./261" [pid 9587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] <... rmdir resumed>) = 0 [pid 9584] <... munmap resumed>) = 0 [pid 9584] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9587] <... openat resumed>) = 3 [pid 9586] 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] mkdir("./262", 0777 [pid 9587] write(3, "1000", 4) = 4 [pid 5003] <... mkdir resumed>) = 0 [pid 9584] <... openat resumed>) = 4 [pid 9584] ioctl(4, LOOP_SET_FD, 3 [pid 9587] close(3 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9587] <... close resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 9584] <... ioctl resumed>) = 0 [pid 9584] close(3) = 0 [pid 9584] mkdir("./file0", 0777 [pid 9587] symlink("/dev/binderfs", "./binderfs" [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9587] <... symlink resumed>) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9587] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] close(3) = 0 [pid 9584] <... mkdir resumed>) = 0 [pid 9584] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9587] <... futex resumed>) = 0 [pid 9587] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9589 [pid 9587] <... mmap resumed>) = 0x7f38e1b78000 [pid 9587] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9587] 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=[9590], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9590 [pid 9587] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9587] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9590 attached ./strace-static-x86_64: Process 9589 attached [pid 9590] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9586] <... write resumed>) = 4194304 [pid 9586] munmap(0x7f38d9778000, 4194304) = 0 [pid 9586] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9586] ioctl(4, LOOP_SET_FD, 3 [pid 9590] memfd_create("syzkaller", 0 [pid 9589] set_robust_list(0x555556b565e0, 24 [pid 9586] <... ioctl resumed>) = 0 [pid 9586] close(3) = 0 [pid 9586] mkdir("./file0", 0777) = 0 [pid 9586] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9590] <... memfd_create resumed>) = 3 [pid 9590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9589] <... set_robust_list resumed>) = 0 [ 264.737535][ T9584] loop1: detected capacity change from 0 to 8192 [ 264.762591][ T9584] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.775268][ T9586] loop0: detected capacity change from 0 to 8192 [pid 9589] chdir("./262") = 0 [pid 9589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9589] setpgid(0, 0 [ 264.776612][ T9584] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 264.791936][ T9584] REISERFS (device loop1): using ordered data mode [ 264.799049][ T9584] reiserfs: using flush barriers [ 264.804302][ T9586] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.805006][ T9584] 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 9590] 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 9589] <... setpgid resumed>) = 0 [pid 9589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9589] write(3, "1000", 4) = 4 [pid 9589] close(3) = 0 [pid 9589] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9589] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9589] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9589] 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=[9592], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9592 [pid 9589] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9589] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9592 attached [pid 9592] set_robust_list(0x7f38e1b989e0, 24) = 0 [ 264.831534][ T9586] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 264.844187][ T9584] REISERFS (device loop1): checking transaction log (loop1) [ 264.852412][ T9584] REISERFS (device loop1): Using r5 hash to sort names [ 264.859742][ T9584] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 264.868904][ T9586] REISERFS (device loop0): using ordered data mode [ 264.872655][ T9584] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9590] <... write resumed>) = 4194304 [pid 9590] munmap(0x7f38d9778000, 4194304 [pid 9592] memfd_create("syzkaller", 0) = 3 [pid 9592] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9584] <... mount resumed>) = 0 [pid 9590] <... munmap resumed>) = 0 [pid 9590] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9590] ioctl(4, LOOP_SET_FD, 3 [pid 9584] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9584] chdir("./file0") = 0 [pid 9584] ioctl(4, LOOP_CLR_FD) = 0 [pid 9584] close(4) = 0 [pid 9590] <... ioctl resumed>) = 0 [pid 9590] close(3) = 0 [pid 9590] mkdir("./file0", 0777 [pid 9584] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9583] <... futex resumed>) = 0 [pid 9590] <... mkdir resumed>) = 0 [pid 9584] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9583] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9583] <... futex resumed>) = 0 [pid 9584] mkdir("./file1", 000 [pid 9583] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9584] <... mkdir resumed>) = 0 [pid 9584] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9583] <... futex resumed>) = 0 [pid 9584] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9583] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9583] <... futex resumed>) = 0 [pid 9584] mkdir("./bus", 000 [pid 9583] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9584] <... mkdir resumed>) = 0 [pid 9584] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9583] <... futex resumed>) = 0 [pid 9584] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9583] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9583] <... futex resumed>) = 0 [pid 9584] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9583] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 264.889308][ T9586] reiserfs: using flush barriers [ 264.893597][ T9590] loop2: detected capacity change from 0 to 8192 [ 264.910590][ T9584] overlayfs: upper fs needs to support d_type. [ 264.917682][ T9586] 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 9590] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9592] 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 9583] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9583] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [ 264.931481][ T9584] overlayfs: upper fs does not support tmpfile. [ 264.941152][ T9590] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 264.954954][ T9584] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 264.962420][ T9590] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 264.965861][ T9586] REISERFS (device loop0): checking transaction log (loop0) [ 264.972869][ T9584] overlayfs: failed to resolve './file0': -2 [pid 9583] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9592] <... write resumed>) = 4194304 [pid 9592] munmap(0x7f38d9778000, 4194304 [pid 9583] <... mprotect resumed>) = 0 [pid 9592] <... munmap resumed>) = 0 [pid 9592] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9592] ioctl(4, LOOP_SET_FD, 3 [pid 9584] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9583] 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 9592] <... ioctl resumed>) = 0 [pid 9586] <... mount resumed>) = 0 [pid 9584] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9586] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9584] <... futex resumed>) = 0 [pid 9583] <... clone resumed>, parent_tid=[9594], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9594 [pid 9586] <... openat resumed>) = 3 [pid 9584] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9583] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9586] chdir("./file0" [pid 9583] <... futex resumed>) = 0 [pid 9586] <... chdir resumed>) = 0 [pid 9583] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9586] ioctl(4, LOOP_CLR_FD) = 0 [ 264.991722][ T9590] REISERFS (device loop2): using ordered data mode [ 264.994775][ T9586] REISERFS (device loop0): Using r5 hash to sort names [ 265.005575][ T9586] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 265.011027][ T9592] loop5: detected capacity change from 0 to 8192 [ 265.018752][ T9586] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 265.026190][ T9590] reiserfs: using flush barriers [pid 9586] close(4./strace-static-x86_64: Process 9594 attached [pid 9592] close(3 [pid 9586] <... close resumed>) = 0 [pid 9586] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9586] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9594] set_robust_list(0x7f38d9b779e0, 24 [pid 9585] <... futex resumed>) = 0 [pid 9594] <... set_robust_list resumed>) = 0 [pid 9585] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9586] <... futex resumed>) = 0 [pid 9585] <... futex resumed>) = 1 [pid 9594] mkdir(".", 0777 [pid 9592] <... close resumed>) = 0 [pid 9586] mkdir("./file1", 000 [pid 9594] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9592] mkdir("./file0", 0777 [pid 9586] <... mkdir resumed>) = 0 [pid 9585] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9586] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9586] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9594] 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 9592] <... mkdir resumed>) = 0 [pid 9585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9585] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9592] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9586] <... futex resumed>) = 0 [pid 9585] <... futex resumed>) = 1 [pid 9586] mkdir("./bus", 000) = 0 [pid 9586] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9586] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9585] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9585] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9586] <... futex resumed>) = 0 [pid 9585] <... futex resumed>) = 1 [pid 9586] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9585] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9594] <... mount resumed>) = 0 [ 265.040194][ T9590] 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 [ 265.065349][ T9590] REISERFS (device loop2): checking transaction log (loop2) [ 265.065392][ T9586] overlayfs: upper fs needs to support d_type. [pid 9594] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9594] chdir(".") = 0 [ 265.080715][ T9592] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 265.087234][ T9586] overlayfs: upper fs does not support tmpfile. [ 265.094854][ T9590] REISERFS (device loop2): Using r5 hash to sort names [ 265.101352][ T9586] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 265.107622][ T9592] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 265.115304][ T9586] overlayfs: failed to resolve './file0': -2 [ 265.123907][ T9590] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9594] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9585] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9594] <... futex resumed>) = 1 [pid 9590] <... mount resumed>) = 0 [pid 9585] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9594] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9585] <... futex resumed>) = 0 [pid 9585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9585] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9585] 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=[9596], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9596 [pid 9583] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9596 attached [pid 9586] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9585] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9583] exit_group(0 [pid 9596] set_robust_list(0x7f38d9b779e0, 24 [pid 9586] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9583] <... exit_group resumed>) = ? [pid 9584] <... futex resumed>) = ? [pid 9596] <... set_robust_list resumed>) = 0 [pid 9594] <... futex resumed>) = ? [pid 9586] <... futex resumed>) = 0 [pid 9586] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9585] <... futex resumed>) = 0 [pid 9584] +++ exited with 0 +++ [pid 9585] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9590] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9594] +++ exited with 0 +++ [pid 9583] +++ exited with 0 +++ [pid 9596] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9596] 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 9590] <... openat resumed>) = 3 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9583, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./262", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./262", 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("./262/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./262/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9596] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] unlink("./262/binderfs" [pid 9596] <... openat resumed>) = 4 [pid 4999] <... unlink resumed>) = 0 [pid 9596] chdir("." [pid 4999] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9596] <... chdir resumed>) = 0 [pid 9596] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9585] <... futex resumed>) = 0 [pid 9596] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9585] exit_group(0 [pid 9596] <... futex resumed>) = ? [pid 9590] chdir("./file0" [pid 9585] <... exit_group resumed>) = ? [pid 9596] +++ exited with 0 +++ [pid 9590] <... chdir resumed>) = 0 [pid 9586] <... futex resumed>) = ? [pid 9590] ioctl(4, LOOP_CLR_FD) = 0 [pid 9590] close(4 [pid 9586] +++ exited with 0 +++ [pid 9585] +++ exited with 0 +++ [ 265.130301][ T9592] REISERFS (device loop5): using ordered data mode [ 265.142325][ T9590] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 265.149543][ T9592] reiserfs: using flush barriers [ 265.166976][ T9592] 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 9590] <... close resumed>) = 0 [pid 9590] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9585, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 9590] <... futex resumed>) = 1 [pid 9587] <... futex resumed>) = 0 [pid 4998] umount2("./262", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9590] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9587] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9587] <... futex resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9590] mkdir("./file1", 000 [pid 9587] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... openat resumed>) = 3 [pid 9590] <... mkdir resumed>) = 0 [pid 4998] fstat(3, [pid 9590] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9590] <... futex resumed>) = 1 [pid 4998] getdents64(3, [pid 9590] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./262/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./262/binderfs", [pid 9587] <... futex resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9587] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] unlink("./262/binderfs" [pid 9590] <... futex resumed>) = 0 [pid 9587] <... futex resumed>) = 1 [pid 4998] <... unlink resumed>) = 0 [pid 9590] mkdir("./bus", 000 [pid 9587] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9590] <... mkdir resumed>) = 0 [pid 9590] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9590] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9587] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9587] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9590] <... futex resumed>) = 0 [ 265.186244][ T9592] REISERFS (device loop5): checking transaction log (loop5) [ 265.195669][ T9592] REISERFS (device loop5): Using r5 hash to sort names [pid 9590] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 4999] <... umount2 resumed>) = 0 [pid 9592] <... mount resumed>) = 0 [pid 4999] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9592] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9592] <... openat resumed>) = 3 [pid 4999] lstat("./262/file0", [pid 9592] chdir("./file0" [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9592] <... chdir resumed>) = 0 [pid 4999] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9592] ioctl(4, LOOP_CLR_FD [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./262/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9592] <... ioctl resumed>) = 0 [pid 9592] close(4 [pid 4999] <... openat resumed>) = 4 [pid 9592] <... close resumed>) = 0 [pid 9587] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] fstat(4, [pid 4998] <... umount2 resumed>) = 0 [pid 9587] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9587] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9587] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9587] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9587] 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=[9597], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9597 [pid 9587] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9587] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9592] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9592] <... futex resumed>) = 1 [pid 9589] <... futex resumed>) = 0 [pid 4998] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 265.235138][ T9592] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 265.249205][ T9590] overlayfs: upper fs needs to support d_type. [ 265.249246][ T9592] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 265.255489][ T9590] overlayfs: upper fs does not support tmpfile. [pid 4999] getdents64(4, [pid 9592] mkdir("./file1", 000 [pid 9589] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9592] <... mkdir resumed>) = 0 [pid 9589] <... futex resumed>) = 0 [pid 9589] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] getdents64(4, [pid 9592] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] lstat("./262/file0", [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] close(4 [pid 4998] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9592] <... futex resumed>) = 0 [pid 9592] mkdir("./bus", 000 [pid 9589] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9592] <... mkdir resumed>) = 0 [pid 9589] <... futex resumed>) = 0 [pid 9592] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9589] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] rmdir("./262/file0" [pid 4998] openat(AT_FDCWD, "./262/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9592] <... futex resumed>) = 0 [pid 9589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] <... rmdir resumed>) = 0 [pid 4998] fstat(4, [pid 9589] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9589] <... futex resumed>) = 0 [pid 9592] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 4999] getdents64(3, [pid 9589] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 9597 attached [pid 9597] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9597] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9597] 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 4998] getdents64(4, [pid 4999] close(3 [pid 9597] <... mount resumed>) = 0 [pid 9597] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9597] chdir(".") = 0 [pid 9597] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9587] <... futex resumed>) = 0 [pid 9597] <... futex resumed>) = 1 [pid 9597] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] rmdir("./262") = 0 [pid 4999] mkdir("./263", 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] close(4 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./262/file0" [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9598 [ 265.286670][ T9590] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 265.301833][ T9592] overlayfs: upper fs needs to support d_type. [ 265.309655][ T9590] overlayfs: failed to resolve './file0': -2 [ 265.310046][ T9592] overlayfs: upper fs does not support tmpfile. [ 265.323024][ T9592] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 265.331193][ T9592] overlayfs: failed to resolve './file0': -2 ./strace-static-x86_64: Process 9598 attached [pid 4998] <... rmdir resumed>) = 0 [pid 9598] set_robust_list(0x555556b565e0, 24 [pid 4998] getdents64(3, [pid 9598] <... set_robust_list resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9598] chdir("./263" [pid 4998] close(3 [pid 9598] <... chdir resumed>) = 0 [pid 9592] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9590] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] <... close resumed>) = 0 [pid 9598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] rmdir("./262" [pid 9592] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9590] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9598] <... prctl resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 9598] setpgid(0, 0 [pid 9587] exit_group(0 [pid 4998] mkdir("./263", 0777 [pid 9597] <... futex resumed>) = ? [pid 9592] <... futex resumed>) = 1 [pid 9590] <... futex resumed>) = ? [pid 9587] <... exit_group resumed>) = ? [pid 9598] <... setpgid resumed>) = 0 [pid 9597] +++ exited with 0 +++ [pid 9589] <... futex resumed>) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 9598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9589] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9598] <... openat resumed>) = 3 [pid 9589] <... futex resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9598] write(3, "1000", 4 [pid 9589] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9598] <... write resumed>) = 4 [pid 9592] mkdir(".", 0777 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9598] close(3 [pid 4998] close(3 [pid 9598] <... close resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9598] symlink("/dev/binderfs", "./binderfs" [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9598] <... symlink resumed>) = 0 [pid 9598] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9592] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9598] <... mmap resumed>) = 0x7f38e1b78000 [pid 9592] 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 9590] +++ exited with 0 +++ [pid 9587] +++ exited with 0 +++ [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9599 [pid 9598] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9587, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 9598] 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] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9598] <... clone resumed>, parent_tid=[9600], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9600 [pid 9598] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9598] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] umount2("./263", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./263", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, [pid 9592] <... mount resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9592] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5000] getdents64(3, [pid 9592] <... openat resumed>) = 4 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9592] chdir("." [pid 5000] umount2("./263/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 9600 attached [pid 9592] <... chdir resumed>) = 0 [pid 5000] lstat("./263/binderfs", [pid 9592] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9600] set_robust_list(0x7f38e1b989e0, 24 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9592] <... futex resumed>) = 1 [pid 9600] <... set_robust_list resumed>) = 0 [pid 9589] <... futex resumed>) = 0 [pid 5000] unlink("./263/binderfs"./strace-static-x86_64: Process 9599 attached [pid 9592] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9589] exit_group(0 [pid 5000] <... unlink resumed>) = 0 [pid 9600] memfd_create("syzkaller", 0 [pid 9599] set_robust_list(0x555556b565e0, 24 [pid 9592] <... futex resumed>) = ? [pid 9589] <... exit_group resumed>) = ? [pid 5000] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9599] <... set_robust_list resumed>) = 0 [pid 9599] chdir("./263") = 0 [pid 9599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9599] setpgid(0, 0) = 0 [pid 9599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9599] write(3, "1000", 4) = 4 [pid 9599] close(3) = 0 [pid 9599] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9592] +++ exited with 0 +++ [pid 9589] +++ exited with 0 +++ [pid 9599] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9600] <... memfd_create resumed>) = 3 [pid 9599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9589, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9599] <... mmap resumed>) = 0x7f38e1b78000 [pid 9599] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5003] umount2("./262", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9599] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9599] <... clone resumed>, parent_tid=[9601], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9601 [pid 9599] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] openat(AT_FDCWD, "./262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9599] <... futex resumed>) = 0 [pid 9599] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... openat resumed>) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9601 attached [pid 9601] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./262/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./262/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./262/binderfs" [pid 9601] <... set_robust_list resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9601] memfd_create("syzkaller", 0) = 3 [pid 9601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9601] 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 9601] munmap(0x7f38d9778000, 4194304) = 0 [pid 9601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9601] ioctl(4, LOOP_SET_FD, 3 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9600] 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 9601] <... ioctl resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./263/file0", [pid 9601] close(3 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9601] <... close resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9601] mkdir("./file0", 0777 [pid 5000] openat(AT_FDCWD, "./263/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, [pid 9601] <... mkdir resumed>) = 0 [pid 9601] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(4, [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] lstat("./262/file0", [pid 5000] close(4 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... close resumed>) = 0 [pid 5003] umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] rmdir("./263/file0" [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./262/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... rmdir resumed>) = 0 [pid 5003] <... openat resumed>) = 4 [pid 5000] getdents64(3, [pid 5003] fstat(4, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] close(3 [pid 5003] getdents64(4, [pid 5000] <... close resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] rmdir("./263" [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5003] close(4 [pid 5000] mkdir("./264", 0777 [pid 5003] <... close resumed>) = 0 [ 265.438009][ T9601] loop0: detected capacity change from 0 to 8192 [ 265.474310][ T9601] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9600] <... write resumed>) = 4194304 [pid 5003] rmdir("./262/file0" [pid 5000] <... mkdir resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5003] getdents64(3, [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 5000] close(3 [pid 5003] <... close resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 5003] rmdir("./262" [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... rmdir resumed>) = 0 [pid 5003] mkdir("./263", 0777) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9603 [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) = 9604 [pid 9600] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9604 attached [pid 9604] set_robust_list(0x555556b565e0, 24 [pid 9600] <... munmap resumed>) = 0 [pid 9600] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9600] ioctl(4, LOOP_SET_FD, 3 [pid 9604] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 9603 attached [pid 9603] set_robust_list(0x555556b565e0, 24) = 0 [pid 9603] chdir("./264") = 0 [pid 9603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9603] setpgid(0, 0) = 0 [pid 9603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9600] <... ioctl resumed>) = 0 [pid 9600] close(3) = 0 [pid 9603] <... openat resumed>) = 3 [pid 9600] mkdir("./file0", 0777 [pid 9603] write(3, "1000", 4) = 4 [pid 9603] close(3) = 0 [pid 9600] <... mkdir resumed>) = 0 [pid 9603] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9600] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9603] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9603] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9603] 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=[9606], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9606 [pid 9603] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 265.490132][ T9601] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 265.500111][ T9601] REISERFS (device loop0): using ordered data mode [ 265.511685][ T9601] reiserfs: using flush barriers [ 265.515944][ T9600] loop1: detected capacity change from 0 to 8192 [ 265.518457][ T9601] 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 9603] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9606 attached [pid 9604] chdir("./263") = 0 [pid 9604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9604] setpgid(0, 0) = 0 [pid 9604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9604] write(3, "1000", 4) = 4 [pid 9606] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9604] close(3 [pid 9606] memfd_create("syzkaller", 0 [pid 9604] <... close resumed>) = 0 [pid 9606] <... memfd_create resumed>) = 3 [pid 9606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9604] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9604] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [ 265.539903][ T9601] REISERFS (device loop0): checking transaction log (loop0) [ 265.547714][ T9600] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 265.562074][ T9600] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 265.573875][ T9600] REISERFS (device loop1): using ordered data mode [ 265.575631][ T9601] REISERFS (device loop0): Using r5 hash to sort names [pid 9604] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9604] 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=[9607], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9607 [pid 9604] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9604] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9607 attached [pid 9607] set_robust_list(0x7f38e1b989e0, 24 [pid 9606] 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 9607] <... set_robust_list resumed>) = 0 [pid 9607] memfd_create("syzkaller", 0) = 3 [pid 9607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 265.580712][ T9600] reiserfs: using flush barriers [ 265.596756][ T9600] 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 [ 265.614914][ T9601] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 265.633137][ T9600] REISERFS (device loop1): checking transaction log (loop1) [pid 9606] <... write resumed>) = 4194304 [pid 9606] munmap(0x7f38d9778000, 4194304) = 0 [pid 9606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9606] ioctl(4, LOOP_SET_FD, 3 [pid 9607] 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 9606] <... ioctl resumed>) = 0 [pid 9601] <... mount resumed>) = 0 [pid 9601] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9601] chdir("./file0") = 0 [pid 9601] ioctl(4, LOOP_CLR_FD) = 0 [pid 9601] close(4) = 0 [pid 9601] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9599] <... futex resumed>) = 0 [pid 9599] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9599] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9601] <... futex resumed>) = 1 [pid 9601] mkdir("./file1", 000 [pid 9606] close(3 [pid 9601] <... mkdir resumed>) = 0 [pid 9601] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9599] <... futex resumed>) = 0 [pid 9601] mkdir("./bus", 000 [pid 9599] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9601] <... mkdir resumed>) = 0 [pid 9599] <... futex resumed>) = 0 [pid 9601] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9599] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9601] <... futex resumed>) = 0 [pid 9599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9601] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9599] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9599] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9606] <... close resumed>) = 0 [ 265.636207][ T9601] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 265.649824][ T9606] loop2: detected capacity change from 0 to 8192 [ 265.657727][ T9600] REISERFS (device loop1): Using r5 hash to sort names [ 265.665122][ T9600] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 265.679988][ T9600] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9606] mkdir("./file0", 0777 [pid 9600] <... mount resumed>) = 0 [pid 9607] <... write resumed>) = 4194304 [pid 9606] <... mkdir resumed>) = 0 [pid 9600] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9606] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9600] <... openat resumed>) = 3 [pid 9600] chdir("./file0") = 0 [pid 9600] ioctl(4, LOOP_CLR_FD) = 0 [pid 9600] close(4) = 0 [pid 9600] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9598] <... futex resumed>) = 0 [pid 9600] mkdir("./file1", 000 [pid 9598] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9600] <... mkdir resumed>) = 0 [pid 9598] <... futex resumed>) = 0 [pid 9600] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9600] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9599] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9598] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9607] munmap(0x7f38d9778000, 4194304 [pid 9599] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 265.690407][ T9601] overlayfs: upper fs needs to support d_type. [ 265.697771][ T9601] overlayfs: upper fs does not support tmpfile. [ 265.704780][ T9606] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 265.705109][ T9601] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 265.728328][ T9601] overlayfs: failed to resolve './file0': -2 [pid 9607] <... munmap resumed>) = 0 [pid 9607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9607] ioctl(4, LOOP_SET_FD, 3 [pid 9601] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9599] <... futex resumed>) = 0 [pid 9598] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9601] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9601] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9600] <... futex resumed>) = 0 [pid 9599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9598] <... futex resumed>) = 1 [pid 9600] mkdir("./bus", 000) = 0 [pid 9600] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9600] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9599] <... mmap resumed>) = 0x7f38d9b57000 [pid 9598] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9599] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9607] <... ioctl resumed>) = 0 [pid 9599] <... mprotect resumed>) = 0 [pid 9598] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9600] <... futex resumed>) = 0 [pid 9598] <... futex resumed>) = 1 [ 265.743147][ T9606] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 265.751839][ T9607] loop5: detected capacity change from 0 to 8192 [ 265.752928][ T9606] REISERFS (device loop2): using ordered data mode [ 265.765835][ T9606] reiserfs: using flush barriers [ 265.773249][ T9606] 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 9600] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9598] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9607] close(3 [pid 9599] 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=[9609], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9609 [pid 9607] <... close resumed>) = 0 [pid 9599] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9607] mkdir("./file0", 0777 [pid 9599] <... futex resumed>) = 0 [pid 9607] <... mkdir resumed>) = 0 [pid 9599] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9607] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9609 attached [pid 9609] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9609] mkdir(".", 0777) = -1 EEXIST (File exists) [ 265.777058][ T9600] overlayfs: upper fs needs to support d_type. [ 265.790357][ T9606] REISERFS (device loop2): checking transaction log (loop2) [ 265.803652][ T9600] overlayfs: upper fs does not support tmpfile. [ 265.806427][ T9606] REISERFS (device loop2): Using r5 hash to sort names [ 265.810651][ T9600] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 265.826201][ T9600] overlayfs: failed to resolve './file0': -2 [pid 9609] 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 9598] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9606] <... mount resumed>) = 0 [pid 9606] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9606] chdir("./file0") = 0 [pid 9606] ioctl(4, LOOP_CLR_FD) = 0 [pid 9606] close(4) = 0 [pid 9609] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9598] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9600] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9606] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9603] <... futex resumed>) = 0 [pid 9603] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9603] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9606] <... futex resumed>) = 1 [pid 9606] mkdir("./file1", 000) = 0 [pid 9606] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9603] <... futex resumed>) = 0 [pid 9603] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9603] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9606] <... futex resumed>) = 1 [pid 9606] mkdir("./bus", 000) = 0 [pid 9598] <... futex resumed>) = 0 [pid 9609] <... openat resumed>) = 4 [pid 9600] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9606] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9609] chdir("." [pid 9600] <... futex resumed>) = 0 [pid 9598] <... mmap resumed>) = 0x7f38d9b57000 [pid 9600] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9609] <... chdir resumed>) = 0 [pid 9598] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9609] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9603] <... futex resumed>) = 0 [pid 9598] <... mprotect resumed>) = 0 [pid 9609] <... futex resumed>) = 1 [pid 9599] <... futex resumed>) = 0 [pid 9609] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9598] 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 9599] exit_group(0 [pid 9609] <... futex resumed>) = ? [pid 9603] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9601] <... futex resumed>) = ? [pid 9599] <... exit_group resumed>) = ? [pid 9609] +++ exited with 0 +++ [pid 9603] <... futex resumed>) = 0 [pid 9601] +++ exited with 0 +++ [pid 9603] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9606] <... futex resumed>) = 1 [ 265.830214][ T9606] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 265.833228][ T9607] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 265.845984][ T9606] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 265.861277][ T9607] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 265.885430][ T9607] REISERFS (device loop5): using ordered data mode [pid 9606] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9599] +++ exited with 0 +++ [pid 9598] <... clone resumed>, parent_tid=[9611], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9611 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9599, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4998] umount2("./263", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./263", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9598] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] fstat(3, [pid 9598] <... futex resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9598] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./263/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./263/binderfs") = 0 [pid 4998] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9611 attached [pid 9611] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9611] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9611] 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 9611] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9611] chdir(".") = 0 [pid 9603] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 265.886436][ T9606] overlayfs: upper fs needs to support d_type. [ 265.892138][ T9607] reiserfs: using flush barriers [ 265.904172][ T9606] overlayfs: upper fs does not support tmpfile. [ 265.910578][ T9607] 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 [ 265.927227][ T9607] REISERFS (device loop5): checking transaction log (loop5) [ 265.935282][ T9606] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9611] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9603] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9611] <... futex resumed>) = 1 [pid 9598] <... futex resumed>) = 0 [pid 9611] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9598] exit_group(0 [pid 9603] <... futex resumed>) = 0 [pid 9611] <... futex resumed>) = ? [pid 9600] <... futex resumed>) = ? [pid 9598] <... exit_group resumed>) = ? [pid 9611] +++ exited with 0 +++ [pid 9600] +++ exited with 0 +++ [pid 9598] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9598, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4999] umount2("./263", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./263", 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("./263/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./263/binderfs") = 0 [pid 9603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9606] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9603] <... mmap resumed>) = 0x7f38d9b57000 [pid 9607] <... mount resumed>) = 0 [pid 9606] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9603] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9607] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9606] <... futex resumed>) = 0 [pid 9607] <... openat resumed>) = 3 [pid 9606] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9603] <... mprotect resumed>) = 0 [pid 9607] chdir("./file0" [pid 9603] 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 9607] <... chdir resumed>) = 0 [pid 9607] ioctl(4, LOOP_CLR_FD [pid 9603] <... clone resumed>, parent_tid=[9612], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9612 [pid 9607] <... ioctl resumed>) = 0 [pid 9603] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9607] close(4 [pid 4998] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9612 attached [pid 9607] <... close resumed>) = 0 [pid 9603] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9612] set_robust_list(0x7f38d9b779e0, 24 [pid 9607] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9603] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9612] <... set_robust_list resumed>) = 0 [pid 9607] <... futex resumed>) = 1 [pid 9604] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./263/file0", [pid 9612] mkdir(".", 0777 [pid 9607] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9604] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] lstat("./263/file0", [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9612] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9604] <... futex resumed>) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9612] 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 9607] mkdir("./file1", 000 [pid 9604] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9607] <... mkdir resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./263/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9607] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] openat(AT_FDCWD, "./263/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 4 [pid 9607] <... futex resumed>) = 1 [pid 4999] <... openat resumed>) = 4 [pid 4998] fstat(4, [pid 9607] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] fstat(4, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9604] <... futex resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, [pid 9604] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(4, [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, [pid 4999] getdents64(4, [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4 [pid 9607] <... futex resumed>) = 0 [pid 9604] <... futex resumed>) = 1 [pid 4999] close(4 [pid 4998] <... close resumed>) = 0 [pid 9607] mkdir("./bus", 000 [pid 4999] <... close resumed>) = 0 [pid 4998] rmdir("./263/file0" [pid 9612] <... mount resumed>) = 0 [pid 9607] <... mkdir resumed>) = 0 [pid 9604] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] rmdir("./263/file0" [pid 4998] <... rmdir resumed>) = 0 [pid 9612] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9607] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 9612] <... openat resumed>) = 4 [pid 9607] <... futex resumed>) = 0 [pid 9604] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] getdents64(3, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9612] chdir("." [pid 9607] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9604] <... futex resumed>) = 0 [ 265.936384][ T9607] REISERFS (device loop5): Using r5 hash to sort names [ 265.943358][ T9606] overlayfs: failed to resolve './file0': -2 [ 265.956426][ T9607] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 265.969862][ T9607] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 9612] <... chdir resumed>) = 0 [pid 9604] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] close(3 [pid 4998] <... close resumed>) = 0 [pid 9612] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... close resumed>) = 0 [pid 4998] rmdir("./263" [pid 9612] <... futex resumed>) = 1 [pid 9603] <... futex resumed>) = 0 [pid 4999] rmdir("./263" [pid 4998] <... rmdir resumed>) = 0 [pid 9612] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9603] exit_group(0 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] mkdir("./264", 0777 [pid 9612] <... futex resumed>) = ? [pid 9606] <... futex resumed>) = ? [pid 9603] <... exit_group resumed>) = ? [pid 4999] mkdir("./264", 0777 [pid 4998] <... mkdir resumed>) = 0 [pid 9612] +++ exited with 0 +++ [pid 9606] +++ exited with 0 +++ [pid 9603] +++ exited with 0 +++ [pid 4999] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9603, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] <... openat resumed>) = 3 [pid 4999] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] umount2("./264", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(3 [pid 4998] <... close resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... openat resumed>) = 3 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] fstat(3, [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9613 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9614 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./264/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9613 attached ) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./264/binderfs" [pid 9613] set_robust_list(0x555556b565e0, 24) = 0 ./strace-static-x86_64: Process 9614 attached [pid 5000] <... unlink resumed>) = 0 [pid 9613] chdir("./264" [pid 9614] set_robust_list(0x555556b565e0, 24 [pid 5000] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9613] <... chdir resumed>) = 0 [pid 9613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9613] setpgid(0, 0) = 0 [pid 9613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9613] write(3, "1000", 4 [pid 9614] <... set_robust_list resumed>) = 0 [pid 9613] <... write resumed>) = 4 [pid 9613] close(3) = 0 [pid 9613] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9613] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9613] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9614] chdir("./264" [pid 9613] 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=[9615], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9615 [pid 9613] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9614] <... chdir resumed>) = 0 [pid 9613] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9615 attached [pid 9615] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9614] setpgid(0, 0) = 0 [pid 9615] memfd_create("syzkaller", 0) = 3 [pid 9615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9614] write(3, "1000", 4) = 4 [pid 9614] close(3) = 0 [pid 9614] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9614] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9614] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9614] 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=[9616], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9616 [pid 9614] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9614] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9604] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9604] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9604] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9604] 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=[9617], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9617 [pid 9604] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9604] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9616 attached [pid 9616] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9616] memfd_create("syzkaller", 0) = 3 [pid 9616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9607] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9607] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9607] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9617 attached [pid 9617] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9617] mkdir(".", 0777) = -1 EEXIST (File exists) [ 266.023756][ T9607] overlayfs: upper fs needs to support d_type. [ 266.035025][ T9607] overlayfs: upper fs does not support tmpfile. [ 266.048004][ T9607] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 266.055778][ T9607] overlayfs: failed to resolve './file0': -2 [pid 9617] 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 9617] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9617] chdir(".") = 0 [pid 9617] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9604] <... futex resumed>) = 0 [pid 9604] exit_group(0 [pid 9617] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9607] <... futex resumed>) = ? [pid 9604] <... exit_group resumed>) = ? [pid 9617] <... futex resumed>) = ? [pid 9607] +++ exited with 0 +++ [pid 9617] +++ exited with 0 +++ [pid 9604] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9604, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./263", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./263", 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("./263/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./263/binderfs") = 0 [pid 5003] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9615] 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("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./264/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./264/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("./264/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./264") = 0 [pid 9616] 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] mkdir("./265", 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) = 9618 [pid 5003] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9618 attached [pid 5003] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./263/file0", [pid 9618] set_robust_list(0x555556b565e0, 24 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9618] <... set_robust_list resumed>) = 0 [pid 5003] umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./263/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, [pid 9618] chdir("./265" [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 9618] <... chdir resumed>) = 0 [pid 9616] <... write resumed>) = 4194304 [pid 9615] <... write resumed>) = 4194304 [pid 5003] rmdir("./263/file0" [pid 9616] munmap(0x7f38d9778000, 4194304 [pid 5003] <... rmdir resumed>) = 0 [pid 9618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9615] munmap(0x7f38d9778000, 4194304 [pid 9618] <... prctl resumed>) = 0 [pid 5003] getdents64(3, [pid 9618] setpgid(0, 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9618] <... setpgid resumed>) = 0 [pid 5003] close(3 [pid 9616] <... munmap resumed>) = 0 [pid 9616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] <... close resumed>) = 0 [pid 9616] <... openat resumed>) = 4 [pid 9616] ioctl(4, LOOP_SET_FD, 3 [pid 9618] <... openat resumed>) = 3 [pid 9615] <... munmap resumed>) = 0 [pid 5003] rmdir("./263" [pid 9618] write(3, "1000", 4) = 4 [pid 5003] <... rmdir resumed>) = 0 [pid 9618] close(3) = 0 [pid 9618] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9618] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] mkdir("./264", 0777 [pid 9618] <... futex resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 9618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9618] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9618] <... mprotect resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 9618] 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] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9616] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 9619 attached [pid 9618] <... clone resumed>, parent_tid=[9619], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9619 [pid 9616] close(3 [pid 9615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9618] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] close(3 [pid 9619] set_robust_list(0x7f38e1b989e0, 24 [pid 9618] <... futex resumed>) = 0 [pid 9616] <... close resumed>) = 0 [pid 9615] <... openat resumed>) = 4 [pid 5003] <... close resumed>) = 0 [pid 9618] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9616] mkdir("./file0", 0777) = 0 [pid 9616] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9619] <... set_robust_list resumed>) = 0 [pid 9619] memfd_create("syzkaller", 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9615] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9621 attached [pid 9619] <... memfd_create resumed>) = 3 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9621 [pid 9615] <... ioctl resumed>) = 0 [pid 9619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9621] set_robust_list(0x555556b565e0, 24 [pid 9615] close(3 [pid 9621] <... set_robust_list resumed>) = 0 [pid 9615] <... close resumed>) = 0 [pid 9621] chdir("./264" [pid 9615] mkdir("./file0", 0777 [pid 9621] <... chdir resumed>) = 0 [pid 9621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9615] <... mkdir resumed>) = 0 [ 266.223989][ T9616] loop1: detected capacity change from 0 to 8192 [ 266.238063][ T9615] loop0: detected capacity change from 0 to 8192 [ 266.245502][ T9616] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 266.259121][ T9616] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9619] 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 9621] <... prctl resumed>) = 0 [pid 9615] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9621] setpgid(0, 0) = 0 [pid 9621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9621] write(3, "1000", 4) = 4 [pid 9621] close(3) = 0 [pid 9621] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9621] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 266.269773][ T9616] REISERFS (device loop1): using ordered data mode [ 266.277519][ T9616] reiserfs: using flush barriers [ 266.284179][ T9616] 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 [ 266.300608][ T9615] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 266.301245][ T9616] REISERFS (device loop1): checking transaction log (loop1) [pid 9621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9619] <... write resumed>) = 4194304 [pid 9619] munmap(0x7f38d9778000, 4194304) = 0 [pid 9619] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9619] ioctl(4, LOOP_SET_FD, 3 [pid 9621] <... mmap resumed>) = 0x7f38e1b78000 [pid 9621] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9619] <... ioctl resumed>) = 0 [pid 9621] 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 9619] close(3 [pid 9621] <... clone resumed>, parent_tid=[9623], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9623 ./strace-static-x86_64: Process 9623 attached [pid 9616] <... mount resumed>) = 0 [ 266.322676][ T9616] REISERFS (device loop1): Using r5 hash to sort names [ 266.327491][ T9615] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 266.330110][ T9616] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 266.343245][ T9619] loop2: detected capacity change from 0 to 8192 [ 266.352202][ T9616] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 266.358447][ T9615] REISERFS (device loop0): using ordered data mode [pid 9619] <... close resumed>) = 0 [pid 9619] mkdir("./file0", 0777) = 0 [pid 9619] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9621] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9621] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9623] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9623] memfd_create("syzkaller", 0 [pid 9616] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9616] chdir("./file0") = 0 [pid 9616] ioctl(4, LOOP_CLR_FD [pid 9623] <... memfd_create resumed>) = 3 [pid 9623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9616] <... ioctl resumed>) = 0 [ 266.375472][ T9615] reiserfs: using flush barriers [ 266.382553][ T9615] 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 [ 266.399783][ T9615] REISERFS (device loop0): checking transaction log (loop0) [ 266.399918][ T9619] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9616] close(4) = 0 [pid 9616] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9616] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9614] <... futex resumed>) = 0 [pid 9614] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9616] <... futex resumed>) = 0 [pid 9614] <... futex resumed>) = 1 [pid 9616] mkdir("./file1", 000 [pid 9614] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9616] <... mkdir resumed>) = 0 [pid 9616] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9615] <... mount resumed>) = 0 [pid 9616] <... futex resumed>) = 1 [pid 9614] <... futex resumed>) = 0 [pid 9616] mkdir("./bus", 000 [pid 9614] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9616] <... mkdir resumed>) = 0 [pid 9614] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9616] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9614] <... futex resumed>) = 0 [pid 9616] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9614] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9615] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9614] <... futex resumed>) = 0 [pid 9615] <... openat resumed>) = 3 [pid 9614] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9615] chdir("./file0") = 0 [pid 9615] ioctl(4, LOOP_CLR_FD) = 0 [ 266.407780][ T9615] REISERFS (device loop0): Using r5 hash to sort names [ 266.427466][ T9615] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 266.440653][ T9615] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 266.450688][ T9619] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 266.458336][ T9616] overlayfs: upper fs needs to support d_type. [ 266.460497][ T9619] REISERFS (device loop2): using ordered data mode [pid 9615] close(4 [pid 9623] 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 9615] <... close resumed>) = 0 [pid 9615] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9613] <... futex resumed>) = 0 [pid 9615] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 266.467353][ T9616] overlayfs: upper fs does not support tmpfile. [ 266.472851][ T9619] reiserfs: using flush barriers [ 266.485289][ T9619] 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 [ 266.505009][ T9619] REISERFS (device loop2): checking transaction log (loop2) [pid 9613] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9623] <... write resumed>) = 4194304 [pid 9615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9614] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9613] <... futex resumed>) = 0 [pid 9614] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9613] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9614] <... futex resumed>) = 0 [pid 9614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9614] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9614] 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=[9625], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9625 [pid 9614] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9614] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9625 attached [pid 9625] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9625] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9625] 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 9615] mkdir("./file1", 000) = 0 [pid 9623] munmap(0x7f38d9778000, 4194304 [pid 9615] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9625] <... mount resumed>) = 0 [pid 9625] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9625] chdir(".") = 0 [pid 9625] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9614] <... futex resumed>) = 0 [pid 9625] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9623] <... munmap resumed>) = 0 [pid 9615] <... futex resumed>) = 1 [pid 9613] <... futex resumed>) = 0 [pid 9623] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9619] <... mount resumed>) = 0 [pid 9623] <... openat resumed>) = 4 [pid 9615] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9613] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9619] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9619] chdir("./file0") = 0 [pid 9619] ioctl(4, LOOP_CLR_FD) = 0 [ 266.535163][ T9616] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 266.542465][ T9619] REISERFS (device loop2): Using r5 hash to sort names [ 266.550481][ T9619] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 266.563529][ T9619] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 266.575715][ T9616] overlayfs: failed to resolve './file0': -2 [pid 9619] close(4 [pid 9623] ioctl(4, LOOP_SET_FD, 3 [pid 9619] <... close resumed>) = 0 [pid 9615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9613] <... futex resumed>) = 0 [pid 9615] mkdir("./bus", 000 [pid 9613] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9615] <... mkdir resumed>) = 0 [pid 9615] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9613] <... futex resumed>) = 0 [pid 9615] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9613] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9613] <... futex resumed>) = 0 [pid 9615] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9613] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9623] <... ioctl resumed>) = 0 [pid 9619] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9623] close(3 [pid 9618] <... futex resumed>) = 0 [pid 9619] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9623] <... close resumed>) = 0 [pid 9618] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9623] mkdir("./file0", 0777 [pid 9618] <... futex resumed>) = 1 [pid 9623] <... mkdir resumed>) = 0 [pid 9618] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9623] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9619] <... futex resumed>) = 0 [pid 9616] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9619] mkdir("./file1", 000 [pid 9616] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9614] exit_group(0 [pid 9625] <... futex resumed>) = ? [pid 9614] <... exit_group resumed>) = ? [pid 9625] +++ exited with 0 +++ [ 266.591401][ T9623] loop5: detected capacity change from 0 to 8192 [ 266.601362][ T9615] overlayfs: upper fs needs to support d_type. [ 266.608747][ T9615] overlayfs: upper fs does not support tmpfile. [ 266.616533][ T9615] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 266.617825][ T9623] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9619] <... mkdir resumed>) = 0 [pid 9616] <... futex resumed>) = ? [pid 9619] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9616] +++ exited with 0 +++ [pid 9614] +++ exited with 0 +++ [pid 9619] <... futex resumed>) = 1 [pid 9619] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9618] <... futex resumed>) = 0 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9614, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9618] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./264", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9619] mkdir("./bus", 000 [pid 9618] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9619] <... mkdir resumed>) = 0 [pid 9618] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] openat(AT_FDCWD, "./264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9619] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... openat resumed>) = 3 [pid 9619] <... futex resumed>) = 1 [pid 9618] <... futex resumed>) = 0 [pid 4999] fstat(3, [pid 9619] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9618] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9618] <... futex resumed>) = 0 [pid 4999] getdents64(3, [pid 9618] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9613] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] umount2("./264/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./264/binderfs") = 0 [ 266.624495][ T9615] overlayfs: failed to resolve './file0': -2 [ 266.639680][ T9623] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 266.652406][ T9623] REISERFS (device loop5): using ordered data mode [ 266.652591][ T9619] overlayfs: upper fs needs to support d_type. [ 266.659316][ T9623] reiserfs: using flush barriers [ 266.671171][ T9619] overlayfs: upper fs does not support tmpfile. [ 266.677864][ T9619] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 266.685700][ T9619] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9613] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9613] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9613] 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=[9627], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9627 [pid 9613] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9613] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9627 attached [pid 9627] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9627] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9627] 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 9627] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9627] chdir(".") = 0 [pid 9627] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9613] <... futex resumed>) = 0 [pid 9618] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9619] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9627] <... futex resumed>) = 1 [pid 9618] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9615] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9619] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9618] <... futex resumed>) = 0 [pid 9615] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9613] exit_group(0 [pid 9627] ???( [pid 9619] <... futex resumed>) = 0 [pid 9615] <... futex resumed>) = ? [pid 9613] <... exit_group resumed>) = ? [pid 9619] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9615] +++ exited with 0 +++ [pid 9627] <... ??? resumed>) = ? [ 266.688386][ T9623] 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 [ 266.709115][ T9623] REISERFS (device loop5): checking transaction log (loop5) [ 266.718031][ T9623] REISERFS (device loop5): Using r5 hash to sort names [ 266.725520][ T9623] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9627] +++ exited with 0 +++ [pid 9618] <... mmap resumed>) = 0x7f38d9b57000 [pid 9613] +++ exited with 0 +++ [pid 9618] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9613, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 9618] <... mprotect resumed>) = 0 [pid 9618] 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 4998] umount2("./264", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9618] <... clone resumed>, parent_tid=[9628], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9628 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9618] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] openat(AT_FDCWD, "./264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9618] <... futex resumed>) = 0 [pid 9618] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... openat resumed>) = 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("./264/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./264/binderfs") = 0 [pid 4998] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9623] <... mount resumed>) = 0 [pid 9623] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9623] chdir("./file0") = 0 [pid 9623] ioctl(4, LOOP_CLR_FD) = 0 [pid 9623] close(4) = 0 [pid 9623] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9621] <... futex resumed>) = 0 [pid 9621] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9621] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9623] <... futex resumed>) = 1 [pid 9623] mkdir("./file1", 000) = 0 [pid 9623] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9621] <... futex resumed>) = 0 [pid 9621] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9621] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9623] <... futex resumed>) = 1 [pid 9623] mkdir("./bus", 000) = 0 [pid 9623] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9621] <... futex resumed>) = 0 [pid 9621] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9621] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9623] <... futex resumed>) = 1 [pid 9623] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,"./strace-static-x86_64: Process 9628 attached [pid 9628] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9628] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9628] 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("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./264/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./264/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("./264/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./264") = 0 [pid 4999] mkdir("./265", 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) = 9629 [pid 9628] <... mount resumed>) = 0 [pid 9628] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 9629 attached [pid 9629] set_robust_list(0x555556b565e0, 24 [pid 9628] <... openat resumed>) = 4 [pid 9628] chdir(".") = 0 [pid 9628] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9629] <... set_robust_list resumed>) = 0 [pid 9629] chdir("./265") = 0 [pid 9629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 266.738466][ T9623] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 266.767574][ T9623] overlayfs: upper fs needs to support d_type. [pid 9629] setpgid(0, 0) = 0 [pid 9629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9629] write(3, "1000", 4) = 4 [pid 9629] close(3) = 0 [pid 9629] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9629] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9628] <... futex resumed>) = 1 [pid 9618] <... futex resumed>) = 0 [pid 9628] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9618] exit_group(0 [pid 9628] <... futex resumed>) = ? [pid 9619] <... futex resumed>) = ? [pid 9618] <... exit_group resumed>) = ? [pid 9619] +++ exited with 0 +++ [pid 9629] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9628] +++ exited with 0 +++ [pid 9618] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9618, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 9629] 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("./265", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9621] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9621] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9621] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9621] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9621] 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] openat(AT_FDCWD, "./265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9621] <... clone resumed>, parent_tid=[9630], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9630 [pid 9621] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 9621] <... futex resumed>) = 0 [pid 5000] fstat(3, [pid 9621] 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 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./265/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./265/binderfs") = 0 [pid 9629] <... clone resumed>, parent_tid=[9631], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9631 [pid 5000] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9629] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9629] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9630 attached [pid 9630] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9630] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9630] 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 9631 attached ) = 0 [pid 9630] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9630] chdir(".") = 0 [pid 9630] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9621] <... futex resumed>) = 0 [pid 9630] <... futex resumed>) = 1 [pid 9630] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9631] set_robust_list(0x7f38e1b989e0, 24) = 0 [ 266.799565][ T9623] overlayfs: upper fs does not support tmpfile. [pid 9631] memfd_create("syzkaller", 0 [pid 4998] <... umount2 resumed>) = 0 [pid 9631] <... memfd_create resumed>) = 3 [pid 9631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4998] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./264/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./264/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("./264/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./264") = 0 [pid 4998] mkdir("./265", 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>) = 0 [pid 5000] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9623] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9623] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] lstat("./265/file0", [pid 9621] exit_group(0 [pid 9630] <... futex resumed>) = ? [pid 9623] <... futex resumed>) = ? [pid 9621] <... exit_group resumed>) = ? [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9630] +++ exited with 0 +++ [pid 9623] +++ exited with 0 +++ [pid 9621] +++ exited with 0 +++ [pid 5000] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9621, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 5000] openat(AT_FDCWD, "./265/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9632 [pid 5000] <... openat resumed>) = 4 [pid 5003] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 9632 attached [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./264", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(4, [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9632] set_robust_list(0x555556b565e0, 24) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] openat(AT_FDCWD, "./264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] getdents64(4, [pid 5003] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] fstat(3, [pid 5000] close(4 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... close resumed>) = 0 [pid 5003] getdents64(3, [pid 5000] rmdir("./265/file0" [pid 9632] chdir("./265") = 0 [pid 9632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9632] setpgid(0, 0) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] getdents64(3, [ 266.848392][ T9623] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 266.867409][ T9623] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./264/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] close(3 [pid 5003] lstat("./264/binderfs", [pid 5000] <... close resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] rmdir("./265" [pid 5003] unlink("./264/binderfs" [pid 9632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] <... rmdir resumed>) = 0 [pid 9632] write(3, "1000", 4) = 4 [pid 5003] <... unlink resumed>) = 0 [pid 5000] mkdir("./266", 0777 [pid 5003] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9632] close(3 [pid 5000] <... mkdir resumed>) = 0 [pid 9632] <... close resumed>) = 0 [pid 9632] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9632] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9632] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9632] <... mprotect resumed>) = 0 [pid 9632] 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] <... openat resumed>) = 3 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9632] <... clone resumed>, parent_tid=[9633], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9633 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9632] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] close(3) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9634 [pid 9632] <... futex resumed>) = 0 [pid 9632] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9634 attached [pid 9634] set_robust_list(0x555556b565e0, 24) = 0 [pid 9634] chdir("./266") = 0 [pid 9634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9634] setpgid(0, 0) = 0 [pid 9634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9634] write(3, "1000", 4) = 4 [pid 9634] close(3) = 0 [pid 9634] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9634] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9634] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9634] 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=[9635], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9635 [pid 9634] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9634] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9635 attached [pid 9635] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9635] memfd_create("syzkaller", 0./strace-static-x86_64: Process 9633 attached ) = 3 [pid 9635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9633] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9633] memfd_create("syzkaller", 0) = 3 [pid 9631] 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 9633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9635] 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("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./264/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./264/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("./264/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./264") = 0 [pid 5003] mkdir("./265", 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 9633] 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 9631] <... write resumed>) = 4194304 [pid 5003] <... close resumed>) = 0 [pid 9635] <... write resumed>) = 4194304 [pid 9635] munmap(0x7f38d9778000, 4194304 [pid 9631] munmap(0x7f38d9778000, 4194304 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9635] <... munmap resumed>) = 0 [pid 9635] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9631] <... munmap resumed>) = 0 [pid 9635] <... openat resumed>) = 4 [pid 9635] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9636 [pid 9631] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9631] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9636 attached [pid 9636] set_robust_list(0x555556b565e0, 24) = 0 [pid 9636] chdir("./265") = 0 [pid 9636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9636] setpgid(0, 0) = 0 [pid 9636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9636] write(3, "1000", 4) = 4 [pid 9636] close(3) = 0 [pid 9636] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9636] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9636] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9636] 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=[9637], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9637 [pid 9636] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9636] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9635] <... ioctl resumed>) = 0 [pid 9635] close(3) = 0 [pid 9635] mkdir("./file0", 0777) = 0 [pid 9635] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 9637 attached [pid 9637] set_robust_list(0x7f38e1b989e0, 24 [pid 9631] <... ioctl resumed>) = 0 [pid 9637] <... set_robust_list resumed>) = 0 [pid 9631] close(3 [pid 9637] memfd_create("syzkaller", 0 [pid 9633] <... write resumed>) = 4194304 [pid 9631] <... close resumed>) = 0 [pid 9637] <... memfd_create resumed>) = 3 [pid 9631] mkdir("./file0", 0777 [pid 9637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9631] <... mkdir resumed>) = 0 [pid 9637] <... mmap resumed>) = 0x7f38d9778000 [pid 9631] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 267.029558][ T9635] loop2: detected capacity change from 0 to 8192 [ 267.030133][ T9631] loop1: detected capacity change from 0 to 8192 [ 267.044253][ T9635] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 267.057977][ T9635] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9633] munmap(0x7f38d9778000, 4194304) = 0 [pid 9637] 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 9633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9633] ioctl(4, LOOP_SET_FD, 3) = 0 [ 267.068071][ T9631] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 267.077358][ T9635] REISERFS (device loop2): using ordered data mode [ 267.082051][ T9631] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 267.089246][ T9635] reiserfs: using flush barriers [ 267.098582][ T9631] REISERFS (device loop1): using ordered data mode [ 267.108900][ T9633] loop0: detected capacity change from 0 to 8192 [ 267.109676][ T9631] reiserfs: using flush barriers [pid 9633] close(3 [pid 9637] <... write resumed>) = 4194304 [pid 9633] <... close resumed>) = 0 [pid 9637] munmap(0x7f38d9778000, 4194304 [ 267.123190][ T9635] 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 [ 267.124074][ T9631] 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 [ 267.152428][ T9635] REISERFS (device loop2): checking transaction log (loop2) [ 267.156699][ T9631] REISERFS (device loop1): checking transaction log (loop1) [ 267.164600][ T9635] REISERFS (device loop2): Using r5 hash to sort names [pid 9633] mkdir("./file0", 0777 [pid 9637] <... munmap resumed>) = 0 [pid 9633] <... mkdir resumed>) = 0 [pid 9637] openat(AT_FDCWD, "/dev/loop5", O_RDWR [ 267.172083][ T9631] REISERFS (device loop1): Using r5 hash to sort names [ 267.179973][ T9635] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 267.185448][ T9631] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 267.198007][ T9635] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 267.210734][ T9631] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9633] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9637] <... openat resumed>) = 4 [pid 9635] <... mount resumed>) = 0 [pid 9637] ioctl(4, LOOP_SET_FD, 3 [pid 9635] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9631] <... mount resumed>) = 0 [pid 9631] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9637] <... ioctl resumed>) = 0 [pid 9637] close(3) = 0 [pid 9637] mkdir("./file0", 0777) = 0 [pid 9635] <... openat resumed>) = 3 [pid 9631] <... openat resumed>) = 3 [pid 9631] chdir("./file0" [pid 9635] chdir("./file0" [pid 9631] <... chdir resumed>) = 0 [pid 9635] <... chdir resumed>) = 0 [pid 9631] ioctl(4, LOOP_CLR_FD [pid 9635] ioctl(4, LOOP_CLR_FD [pid 9631] <... ioctl resumed>) = 0 [pid 9635] <... ioctl resumed>) = 0 [pid 9635] close(4 [pid 9631] close(4) = 0 [pid 9635] <... close resumed>) = 0 [pid 9631] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9635] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9629] <... futex resumed>) = 0 [pid 9629] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9629] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9634] <... futex resumed>) = 0 [pid 9634] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9634] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9635] <... futex resumed>) = 1 [pid 9631] <... futex resumed>) = 1 [pid 9637] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9635] mkdir("./file1", 000 [pid 9631] mkdir("./file1", 000) = 0 [pid 9631] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9631] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9629] <... futex resumed>) = 0 [pid 9629] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9631] <... futex resumed>) = 0 [pid 9629] <... futex resumed>) = 1 [pid 9631] mkdir("./bus", 000 [ 267.220831][ T9637] loop5: detected capacity change from 0 to 8192 [ 267.237121][ T9633] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 267.251042][ T9633] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 267.261272][ T9633] REISERFS (device loop0): using ordered data mode [ 267.269593][ T9633] reiserfs: using flush barriers [pid 9629] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9631] <... mkdir resumed>) = 0 [pid 9631] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9631] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9635] <... mkdir resumed>) = 0 [pid 9635] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9635] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9634] <... futex resumed>) = 0 [pid 9629] <... futex resumed>) = 0 [pid 9634] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9629] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9635] <... futex resumed>) = 0 [pid 9634] <... futex resumed>) = 1 [pid 9629] <... futex resumed>) = 1 [pid 9635] mkdir("./bus", 000 [pid 9634] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9629] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9631] <... futex resumed>) = 0 [pid 9635] <... mkdir resumed>) = 0 [pid 9635] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9634] <... futex resumed>) = 0 [pid 9635] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9634] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9634] <... futex resumed>) = 0 [pid 9635] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9634] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 267.277339][ T9633] 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 [ 267.296443][ T9631] overlayfs: upper fs needs to support d_type. [ 267.296692][ T9635] overlayfs: upper fs needs to support d_type. [ 267.302666][ T9631] overlayfs: upper fs does not support tmpfile. [ 267.315846][ T9637] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9631] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9634] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9629] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9629] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9634] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9629] <... mmap resumed>) = 0x7f38d9b57000 [pid 9634] <... mmap resumed>) = 0x7f38d9b57000 [pid 9634] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9629] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9634] <... mprotect resumed>) = 0 [pid 9629] <... mprotect resumed>) = 0 [pid 9634] 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 9629] 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 9634] <... clone resumed>, parent_tid=[9643], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9643 [pid 9629] <... clone resumed>, parent_tid=[9642], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9642 [pid 9634] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9629] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9634] <... futex resumed>) = 0 [pid 9629] <... futex resumed>) = 0 [pid 9634] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [ 267.329468][ T9635] overlayfs: upper fs does not support tmpfile. [ 267.329696][ T9631] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 267.337298][ T9635] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 267.342898][ T9637] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 267.351154][ T9635] overlayfs: failed to resolve './file0': -2 [ 267.367565][ T9633] REISERFS (device loop0): checking transaction log (loop0) [ 267.368982][ T9631] overlayfs: failed to resolve './file0': -2 [pid 9629] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9635] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 9642 attached ./strace-static-x86_64: Process 9643 attached [pid 9643] set_robust_list(0x7f38d9b779e0, 24 [pid 9642] set_robust_list(0x7f38d9b779e0, 24 [pid 9643] <... set_robust_list resumed>) = 0 [pid 9642] <... set_robust_list resumed>) = 0 [pid 9643] mkdir(".", 0777 [pid 9642] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9643] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9643] 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 9642] 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 9635] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9631] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9635] <... futex resumed>) = 0 [pid 9631] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9635] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9631] <... futex resumed>) = 0 [pid 9631] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9642] <... mount resumed>) = 0 [pid 9642] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9643] <... mount resumed>) = 0 [ 267.378725][ T9633] REISERFS (device loop0): Using r5 hash to sort names [ 267.381628][ T9637] REISERFS (device loop5): using ordered data mode [ 267.395283][ T9637] reiserfs: using flush barriers [ 267.402036][ T9633] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 267.406311][ T9637] 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 9643] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9643] chdir(".") = 0 [pid 9643] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9634] <... futex resumed>) = 0 [pid 9634] exit_group(0 [pid 9635] <... futex resumed>) = ? [pid 9634] <... exit_group resumed>) = ? [pid 9635] +++ exited with 0 +++ [pid 9642] chdir("." [pid 9643] <... futex resumed>) = ? [pid 9633] <... mount resumed>) = 0 [pid 9642] <... chdir resumed>) = 0 [pid 9642] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9629] <... futex resumed>) = 0 [pid 9642] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9629] exit_group(0 [pid 9642] <... futex resumed>) = ? [pid 9629] <... exit_group resumed>) = ? [pid 9642] +++ exited with 0 +++ [pid 9633] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9631] <... futex resumed>) = ? [pid 9643] +++ exited with 0 +++ [pid 9634] +++ exited with 0 +++ [pid 9633] <... openat resumed>) = 3 [pid 9633] chdir("./file0" [pid 9631] +++ exited with 0 +++ [pid 9629] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9634, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9629, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 5000] <... restart_syscall resumed>) = 0 [pid 4999] <... restart_syscall resumed>) = 0 [pid 5000] umount2("./266", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./265", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9633] <... chdir resumed>) = 0 [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("./266/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./265/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./266/binderfs", [pid 4999] lstat("./265/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 [pid 5000] unlink("./266/binderfs" [pid 4999] unlink("./265/binderfs" [pid 9633] ioctl(4, LOOP_CLR_FD [pid 5000] <... unlink resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 9633] <... ioctl resumed>) = 0 [pid 5000] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9633] close(4) = 0 [pid 9633] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9632] <... futex resumed>) = 0 [pid 9633] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9632] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9632] <... futex resumed>) = 0 [pid 9633] mkdir("./file1", 000 [pid 9632] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9633] <... mkdir resumed>) = 0 [pid 9633] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9632] <... futex resumed>) = 0 [pid 9633] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9632] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9632] <... futex resumed>) = 0 [pid 9633] mkdir("./bus", 000 [pid 9632] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9633] <... mkdir resumed>) = 0 [pid 9633] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9632] <... futex resumed>) = 0 [pid 9633] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9632] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9632] <... futex resumed>) = 0 [ 267.415023][ T9633] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 267.441024][ T9637] REISERFS (device loop5): checking transaction log (loop5) [ 267.450855][ T9637] REISERFS (device loop5): Using r5 hash to sort names [ 267.458062][ T9637] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9633] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9632] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9637] <... mount resumed>) = 0 [ 267.493874][ T9633] overlayfs: upper fs needs to support d_type. [ 267.495779][ T9637] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 267.501407][ T9633] overlayfs: upper fs does not support tmpfile. [pid 9637] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9632] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] <... umount2 resumed>) = 0 [pid 9637] chdir("./file0" [pid 9632] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9637] <... chdir resumed>) = 0 [pid 9632] <... futex resumed>) = 0 [pid 9637] ioctl(4, LOOP_CLR_FD [pid 9632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9637] <... ioctl resumed>) = 0 [pid 9632] <... mmap resumed>) = 0x7f38d9b57000 [pid 9637] close(4 [pid 9632] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9637] <... close resumed>) = 0 [pid 9632] <... mprotect resumed>) = 0 [pid 9632] 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=[9644], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9644 [pid 9632] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9632] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9644 attached [pid 9644] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9644] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9644] 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 9637] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9637] <... futex resumed>) = 1 [pid 9636] <... futex resumed>) = 0 [pid 9637] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9636] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9636] <... futex resumed>) = 0 [pid 4999] lstat("./265/file0", [pid 9637] mkdir("./file1", 000 [pid 9636] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9637] <... mkdir resumed>) = 0 [pid 4999] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9637] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... umount2 resumed>) = 0 [pid 9637] <... futex resumed>) = 1 [pid 9636] <... futex resumed>) = 0 [pid 5000] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9636] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9636] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9637] mkdir("./bus", 000 [pid 4999] openat(AT_FDCWD, "./265/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9637] <... mkdir resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... openat resumed>) = 4 [pid 9637] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9644] <... mount resumed>) = 0 [pid 9644] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9637] <... futex resumed>) = 1 [pid 9636] <... futex resumed>) = 0 [pid 5000] lstat("./266/file0", [pid 4999] fstat(4, [pid 9644] <... openat resumed>) = 4 [pid 9637] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9636] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9633] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9636] <... futex resumed>) = 0 [pid 9633] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] getdents64(4, [pid 9644] chdir("." [pid 9637] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9636] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9644] <... chdir resumed>) = 0 [pid 9633] <... futex resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./266/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9644] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9633] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... openat resumed>) = 4 [pid 4999] getdents64(4, [pid 9644] <... futex resumed>) = 1 [pid 9632] <... futex resumed>) = 0 [ 267.548811][ T9633] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 267.572814][ T9633] overlayfs: failed to resolve './file0': -2 [ 267.591935][ T9637] overlayfs: upper fs needs to support d_type. [pid 9644] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9632] exit_group(0 [pid 9644] <... futex resumed>) = ? [pid 9632] <... exit_group resumed>) = ? [pid 9644] +++ exited with 0 +++ [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("./266/file0" [pid 9633] <... futex resumed>) = ? [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./266") = 0 [pid 5000] mkdir("./267", 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 9633] +++ exited with 0 +++ [pid 9632] +++ exited with 0 +++ [pid 5000] <... close resumed>) = 0 [pid 4999] close(4 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9632, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9645 [pid 4998] umount2("./265", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... close resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 4999] rmdir("./265/file0" [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("./265/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./265/binderfs") = 0 [pid 4998] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9645 attached [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 9645] set_robust_list(0x555556b565e0, 24 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./265" [pid 9645] <... set_robust_list resumed>) = 0 [pid 9645] chdir("./267" [pid 4999] <... rmdir resumed>) = 0 [pid 9645] <... chdir resumed>) = 0 [pid 9645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9645] setpgid(0, 0 [pid 4999] mkdir("./266", 0777 [pid 9645] <... setpgid resumed>) = 0 [pid 9645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] <... mkdir resumed>) = 0 [pid 9645] write(3, "1000", 4) = 4 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9645] close(3) = 0 [pid 9645] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... openat resumed>) = 3 [pid 9645] <... symlink resumed>) = 0 [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9645] <... futex resumed>) = 0 [pid 9645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9636] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9645] <... mmap resumed>) = 0x7f38e1b78000 [pid 9636] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9645] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9636] <... futex resumed>) = 0 [pid 4999] close(3 [pid 9645] <... mprotect resumed>) = 0 [pid 9636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9645] 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 9636] <... mmap resumed>) = 0x7f38d9b57000 [pid 4999] <... close resumed>) = 0 [pid 9636] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9645] <... clone resumed>, parent_tid=[9646], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9646 [pid 9637] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9636] <... mprotect resumed>) = 0 [pid 9645] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9636] 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 9645] <... futex resumed>) = 0 [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9636] <... clone resumed>, parent_tid=[9647], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9647 [pid 9636] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9636] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9646 attached [pid 9646] set_robust_list(0x7f38e1b989e0, 24 [pid 9637] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9648 [pid 9637] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9646] <... set_robust_list resumed>) = 0 [pid 9646] memfd_create("syzkaller", 0./strace-static-x86_64: Process 9647 attached [pid 9647] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9647] mkdir(".", 0777 [pid 9646] <... memfd_create resumed>) = 3 [pid 9646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9647] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9646] <... mmap resumed>) = 0x7f38d9778000 [pid 9647] 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 9648 attached [pid 9648] set_robust_list(0x555556b565e0, 24) = 0 [ 267.599786][ T9637] overlayfs: upper fs does not support tmpfile. [ 267.606629][ T9637] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 267.616384][ T9637] overlayfs: failed to resolve './file0': -2 [pid 9648] chdir("./266" [pid 9647] <... mount resumed>) = 0 [pid 9648] <... chdir resumed>) = 0 [pid 9648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9648] setpgid(0, 0) = 0 [pid 9648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9647] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9648] write(3, "1000", 4) = 4 [pid 9647] <... openat resumed>) = 4 [pid 9648] close(3) = 0 [pid 9648] symlink("/dev/binderfs", "./binderfs" [pid 9647] chdir("." [pid 9648] <... symlink resumed>) = 0 [pid 9647] <... chdir resumed>) = 0 [pid 9648] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9647] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9648] <... mmap resumed>) = 0x7f38e1b78000 [pid 9647] <... futex resumed>) = 1 [pid 9636] <... futex resumed>) = 0 [pid 9648] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9647] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9636] exit_group(0 [pid 9648] <... mprotect resumed>) = 0 [pid 9647] <... futex resumed>) = ? [pid 9637] <... futex resumed>) = ? [pid 9636] <... exit_group resumed>) = ? [pid 9648] 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 9647] +++ exited with 0 +++ [pid 9648] <... clone resumed>, parent_tid=[9649], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9649 [pid 9648] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9637] +++ exited with 0 +++ [pid 9636] +++ exited with 0 +++ [pid 9648] <... futex resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9636, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9648] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./265", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9649 attached [pid 5003] getdents64(3, [pid 9649] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./265/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9649] <... set_robust_list resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./265/binderfs" [pid 9649] memfd_create("syzkaller", 0 [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9649] <... memfd_create resumed>) = 3 [pid 9649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9646] 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] <... umount2 resumed>) = 0 [pid 4998] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./265/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./265/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("./265/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./265") = 0 [pid 4998] mkdir("./266", 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) = 9650 ./strace-static-x86_64: Process 9650 attached [pid 9650] set_robust_list(0x555556b565e0, 24) = 0 [pid 9650] chdir("./266") = 0 [pid 9650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9650] setpgid(0, 0) = 0 [pid 9650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9650] write(3, "1000", 4) = 4 [pid 9650] close(3) = 0 [pid 9650] symlink("/dev/binderfs", "./binderfs" [pid 9649] 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 9650] <... symlink resumed>) = 0 [pid 9650] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9650] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9650] 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=[9651], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9651 [pid 9650] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9650] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./265/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./265/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("./265/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./265") = 0 [pid 5003] mkdir("./266", 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 ./strace-static-x86_64: Process 9651 attached [pid 9651] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9651] memfd_create("syzkaller", 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9652 [pid 9651] <... memfd_create resumed>) = 3 [pid 9651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9652 attached [pid 9652] set_robust_list(0x555556b565e0, 24) = 0 [pid 9652] chdir("./266") = 0 [pid 9652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9652] setpgid(0, 0) = 0 [pid 9652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9652] write(3, "1000", 4) = 4 [pid 9652] close(3) = 0 [pid 9652] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9649] <... write resumed>) = 4194304 [pid 9646] <... write resumed>) = 4194304 [pid 9652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9649] munmap(0x7f38d9778000, 4194304 [pid 9652] <... mmap resumed>) = 0x7f38e1b78000 [pid 9652] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9646] munmap(0x7f38d9778000, 4194304 [pid 9652] 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 9649] <... munmap resumed>) = 0 [pid 9649] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9646] <... munmap resumed>) = 0 [pid 9652] <... clone resumed>, parent_tid=[9653], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9653 [pid 9649] <... openat resumed>) = 4 [pid 9652] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9649] ioctl(4, LOOP_SET_FD, 3 [pid 9652] <... futex resumed>) = 0 [pid 9646] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9646] ioctl(4, LOOP_SET_FD, 3 [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9649] <... ioctl resumed>) = 0 [pid 9649] close(3) = 0 [pid 9649] mkdir("./file0", 0777./strace-static-x86_64: Process 9653 attached [pid 9653] set_robust_list(0x7f38e1b989e0, 24 [pid 9649] <... mkdir resumed>) = 0 [pid 9653] <... set_robust_list resumed>) = 0 [pid 9649] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9653] memfd_create("syzkaller", 0) = 3 [pid 9651] 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 9646] <... ioctl resumed>) = 0 [pid 9653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9646] close(3 [pid 9653] 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 9646] <... close resumed>) = 0 [pid 9646] mkdir("./file0", 0777) = 0 [ 267.827415][ T9649] loop1: detected capacity change from 0 to 8192 [ 267.829342][ T9646] loop2: detected capacity change from 0 to 8192 [ 267.856325][ T9649] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9646] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9651] <... write resumed>) = 4194304 [pid 9653] <... write resumed>) = 4194304 [pid 9651] munmap(0x7f38d9778000, 4194304 [pid 9653] munmap(0x7f38d9778000, 4194304 [pid 9651] <... munmap resumed>) = 0 [ 267.872541][ T9649] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 267.882286][ T9646] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 267.896226][ T9649] REISERFS (device loop1): using ordered data mode [ 267.900889][ T9646] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 267.903828][ T9649] reiserfs: using flush barriers [ 267.914499][ T9646] REISERFS (device loop2): using ordered data mode [pid 9653] <... munmap resumed>) = 0 [pid 9651] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9653] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9651] <... openat resumed>) = 4 [pid 9653] <... openat resumed>) = 4 [pid 9651] ioctl(4, LOOP_SET_FD, 3 [ 267.923701][ T9649] 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 [ 267.925577][ T9646] reiserfs: using flush barriers [ 267.945368][ T9649] REISERFS (device loop1): checking transaction log (loop1) [ 267.947757][ T9651] loop0: detected capacity change from 0 to 8192 [ 267.953536][ T9649] REISERFS (device loop1): Using r5 hash to sort names [ 267.960204][ T9653] loop5: detected capacity change from 0 to 8192 [pid 9653] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9651] <... ioctl resumed>) = 0 [pid 9649] <... mount resumed>) = 0 [pid 9649] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9649] chdir("./file0") = 0 [pid 9649] ioctl(4, LOOP_CLR_FD) = 0 [pid 9649] close(4) = 0 [pid 9649] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9649] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9651] close(3 [pid 9653] close(3 [pid 9651] <... close resumed>) = 0 [pid 9651] mkdir("./file0", 0777 [pid 9653] <... close resumed>) = 0 [pid 9651] <... mkdir resumed>) = 0 [pid 9653] mkdir("./file0", 0777 [pid 9648] <... futex resumed>) = 0 [pid 9653] <... mkdir resumed>) = 0 [pid 9648] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9653] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9649] <... futex resumed>) = 0 [pid 9648] <... futex resumed>) = 1 [pid 9649] mkdir("./file1", 000 [pid 9648] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9651] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9649] <... mkdir resumed>) = 0 [pid 9649] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9648] <... futex resumed>) = 0 [pid 9649] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 267.967223][ T9649] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 267.974442][ T9646] 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 [ 267.986086][ T9649] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9648] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9648] <... futex resumed>) = 0 [pid 9649] mkdir("./bus", 000 [pid 9648] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9649] <... mkdir resumed>) = 0 [ 268.015992][ T9653] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 268.022057][ T9646] REISERFS (device loop2): checking transaction log (loop2) [ 268.030881][ T9651] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 268.037801][ T9653] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 268.052255][ T9651] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 268.071152][ T9646] REISERFS (device loop2): Using r5 hash to sort names [pid 9649] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9649] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9648] <... futex resumed>) = 0 [pid 9648] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 268.071245][ T9651] REISERFS (device loop0): using ordered data mode [ 268.078630][ T9653] REISERFS (device loop5): using ordered data mode [ 268.085446][ T9651] reiserfs: using flush barriers [ 268.091572][ T9653] reiserfs: using flush barriers [ 268.098002][ T9646] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9648] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9649] <... futex resumed>) = 0 [pid 9649] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9648] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9646] <... mount resumed>) = 0 [pid 9648] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9648] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9648] 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=[9658], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9658 [pid 9648] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9648] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9658 attached [pid 9658] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9658] mkdir(".", 0777) = -1 EEXIST (File exists) [ 268.104887][ T9653] 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 [ 268.114408][ T9646] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 268.131306][ T9653] REISERFS (device loop5): checking transaction log (loop5) [ 268.139848][ T9651] 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 [ 268.148409][ T9653] REISERFS (device loop5): Using r5 hash to sort names [ 268.164483][ T9651] REISERFS (device loop0): checking transaction log (loop0) [pid 9658] 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 9646] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9646] chdir("./file0") = 0 [pid 9646] ioctl(4, LOOP_CLR_FD) = 0 [ 268.173672][ T9653] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 268.178267][ T9649] overlayfs: upper fs needs to support d_type. [ 268.197689][ T9649] overlayfs: upper fs does not support tmpfile. [ 268.204834][ T9651] REISERFS (device loop0): Using r5 hash to sort names [ 268.213272][ T9651] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9646] close(4 [pid 9658] <... mount resumed>) = 0 [pid 9646] <... close resumed>) = 0 [pid 9658] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9658] chdir(".") = 0 [pid 9658] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9648] <... futex resumed>) = 0 [pid 9658] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9646] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9645] <... futex resumed>) = 0 [pid 9646] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9645] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9646] mkdir("./file1", 000) = 0 [pid 9646] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9645] <... futex resumed>) = 0 [pid 9645] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9646] mkdir("./bus", 000 [pid 9645] <... futex resumed>) = 0 [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9646] <... mkdir resumed>) = 0 [pid 9646] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9645] <... futex resumed>) = 0 [pid 9646] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9645] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9651] <... mount resumed>) = 0 [pid 9651] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9653] <... mount resumed>) = 0 [ 268.227828][ T9649] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 268.235921][ T9649] overlayfs: failed to resolve './file0': -2 [ 268.238336][ T9653] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 268.242585][ T9651] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9651] <... openat resumed>) = 3 [pid 9653] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9653] chdir("./file0") = 0 [pid 9653] ioctl(4, LOOP_CLR_FD) = 0 [pid 9653] close(4 [pid 9651] chdir("./file0") = 0 [pid 9651] ioctl(4, LOOP_CLR_FD [pid 9649] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9651] <... ioctl resumed>) = 0 [pid 9649] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9651] close(4 [pid 9649] <... futex resumed>) = 0 [pid 9653] <... close resumed>) = 0 [pid 9651] <... close resumed>) = 0 [pid 9649] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9651] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9648] exit_group(0 [pid 9658] <... futex resumed>) = ? [pid 9649] <... futex resumed>) = ? [pid 9648] <... exit_group resumed>) = ? [pid 9651] <... futex resumed>) = 1 [pid 9650] <... futex resumed>) = 0 [pid 9658] +++ exited with 0 +++ [pid 9651] mkdir("./file1", 000 [pid 9650] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9649] +++ exited with 0 +++ [pid 9648] +++ exited with 0 +++ [pid 9651] <... mkdir resumed>) = 0 [pid 9650] <... futex resumed>) = 0 [pid 9650] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9651] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9648, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 9653] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9652] <... futex resumed>) = 0 [pid 9651] <... futex resumed>) = 0 [pid 9650] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] restart_syscall(<... resuming interrupted clone ...> [pid 9652] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9651] mkdir("./bus", 000 [pid 9650] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... restart_syscall resumed>) = 0 [pid 9652] <... futex resumed>) = 0 [pid 9651] <... mkdir resumed>) = 0 [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9651] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9650] <... futex resumed>) = 0 [pid 9651] <... futex resumed>) = 0 [pid 9650] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9651] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9650] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9653] mkdir("./file1", 000 [pid 9650] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4999] umount2("./266", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9651] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9650] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9653] <... mkdir resumed>) = 0 [pid 9650] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] openat(AT_FDCWD, "./266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9653] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... openat resumed>) = 3 [pid 9653] <... futex resumed>) = 1 [pid 9652] <... futex resumed>) = 0 [pid 9653] mkdir("./bus", 000 [pid 9652] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9653] <... mkdir resumed>) = 0 [pid 9652] <... futex resumed>) = 0 [pid 9653] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9653] <... futex resumed>) = 0 [pid 9652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9653] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9652] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9645] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9645] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9645] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9645] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [ 268.277879][ T9646] overlayfs: upper fs needs to support d_type. [ 268.284837][ T9646] overlayfs: upper fs does not support tmpfile. [ 268.293691][ T9646] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 268.316195][ T9651] overlayfs: upper fs needs to support d_type. [ 268.323117][ T9651] overlayfs: upper fs does not support tmpfile. [pid 9645] 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 9659 attached [pid 4999] fstat(3, [pid 9645] <... clone resumed>, parent_tid=[9659], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9659 [pid 9645] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9645] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9659] set_robust_list(0x7f38d9b779e0, 24 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9659] <... set_robust_list resumed>) = 0 [pid 4999] getdents64(3, [pid 9659] mkdir(".", 0777 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9659] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4999] umount2("./266/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9659] 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>) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./266/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./266/binderfs") = 0 [pid 4999] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9659] <... mount resumed>) = 0 [pid 9652] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9652] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9652] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9652] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9652] 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=[9660], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9660 [pid 9652] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9652] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9650] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9650] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9659] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 9660 attached [pid 9660] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9660] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9660] 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 9650] <... futex resumed>) = 0 [pid 9659] <... openat resumed>) = 4 [pid 9650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9659] chdir("." [pid 9650] <... mmap resumed>) = 0x7f38d9b57000 [pid 9650] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9659] <... chdir resumed>) = 0 [pid 9650] <... mprotect resumed>) = 0 [pid 9659] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9650] 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 9659] <... futex resumed>) = 1 [pid 9645] <... futex resumed>) = 0 [pid 9659] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9650] <... clone resumed>, parent_tid=[9661], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9661 [pid 9650] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9650] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9661 attached [pid 9661] set_robust_list(0x7f38d9b779e0, 24) = 0 [ 268.323296][ T9653] overlayfs: upper fs needs to support d_type. [ 268.336525][ T9651] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 268.352197][ T9646] overlayfs: failed to resolve './file0': -2 [ 268.359308][ T9653] overlayfs: upper fs does not support tmpfile. [ 268.362972][ T9651] overlayfs: failed to resolve './file0': -2 [pid 9660] <... mount resumed>) = 0 [pid 9660] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9660] chdir(".") = 0 [pid 9660] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9652] <... futex resumed>) = 0 [pid 9660] <... futex resumed>) = 1 [pid 9660] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9661] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9661] 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 9661] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] <... umount2 resumed>) = 0 [pid 9661] <... openat resumed>) = 4 [pid 9661] chdir("." [pid 4999] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9651] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9646] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9661] <... chdir resumed>) = 0 [pid 9646] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9661] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9651] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9653] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9646] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9651] <... futex resumed>) = 0 [pid 9645] exit_group(0 [pid 9651] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9661] <... futex resumed>) = 1 [pid 9659] <... futex resumed>) = ? [pid 9650] <... futex resumed>) = 0 [pid 9645] <... exit_group resumed>) = ? [pid 9646] <... futex resumed>) = ? [pid 9659] +++ exited with 0 +++ [pid 9650] exit_group(0 [pid 9646] +++ exited with 0 +++ [pid 9645] +++ exited with 0 +++ [pid 9650] <... exit_group resumed>) = ? [pid 9651] <... futex resumed>) = ? [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9645, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 9651] +++ exited with 0 +++ [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./267", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9661] +++ exited with 0 +++ [pid 9650] +++ exited with 0 +++ [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9653] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./267/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] lstat("./266/file0", [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9650, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9653] <... futex resumed>) = 0 [pid 9652] exit_group(0 [pid 5000] lstat("./267/binderfs", [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9660] <... futex resumed>) = ? [pid 9652] <... exit_group resumed>) = ? [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9660] +++ exited with 0 +++ [pid 5000] unlink("./267/binderfs" [pid 4999] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./266", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... unlink resumed>) = 0 [pid 5000] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./266/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... openat resumed>) = 3 [pid 9653] +++ exited with 0 +++ [pid 9652] +++ exited with 0 +++ [pid 4999] <... openat resumed>) = 4 [pid 4998] fstat(3, [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9652, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 4999] fstat(4, [pid 4998] <... 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 4998] getdents64(3, [pid 4999] getdents64(4, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./266", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] umount2("./266/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] getdents64(4, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] lstat("./266/binderfs", [pid 5003] <... openat resumed>) = 3 [pid 4999] close(4 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] fstat(3, [pid 4999] <... close resumed>) = 0 [pid 4998] unlink("./266/binderfs" [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] rmdir("./266/file0" [pid 4998] <... unlink resumed>) = 0 [pid 5003] getdents64(3, [pid 4999] <... rmdir resumed>) = 0 [pid 4998] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] getdents64(3, [pid 5003] umount2("./266/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] close(3 [pid 5003] lstat("./266/binderfs", [pid 4999] <... close resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] rmdir("./266" [pid 5003] unlink("./266/binderfs" [pid 4999] <... rmdir resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 4999] mkdir("./267", 0777 [pid 5003] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... mkdir resumed>) = 0 [ 268.389630][ T9653] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 268.403056][ T9653] overlayfs: failed to resolve './file0': -2 [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) = 9662 ./strace-static-x86_64: Process 9662 attached [pid 9662] set_robust_list(0x555556b565e0, 24) = 0 [pid 9662] chdir("./267") = 0 [pid 9662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9662] setpgid(0, 0) = 0 [pid 9662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9662] write(3, "1000", 4) = 4 [pid 9662] close(3) = 0 [pid 9662] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9662] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9662] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9662] 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=[9663], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9663 [pid 9662] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9662] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9663 attached [pid 9663] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9663] memfd_create("syzkaller", 0) = 3 [pid 9663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9663] 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 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./266/file0", [pid 5000] lstat("./267/file0", [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./266/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] openat(AT_FDCWD, "./267/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... openat resumed>) = 4 [pid 5003] fstat(4, [pid 5000] <... openat resumed>) = 4 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] fstat(4, [pid 5003] getdents64(4, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, [pid 5003] getdents64(4, [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] getdents64(4, [pid 5003] close(4 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] close(4 [pid 5003] rmdir("./266/file0" [pid 5000] <... close resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] rmdir("./267/file0" [pid 5003] getdents64(3, [pid 5000] <... rmdir resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] getdents64(3, [pid 5003] close(3 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] close(3 [pid 5003] rmdir("./266" [pid 5000] <... close resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] rmdir("./267" [pid 4998] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] mkdir("./267", 0777 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [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 9663] <... write resumed>) = 4194304 [pid 5003] <... close resumed>) = 0 [pid 5000] mkdir("./268", 0777 [pid 4998] lstat("./266/file0", [pid 5000] <... mkdir resumed>) = 0 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... openat resumed>) = 3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] openat(AT_FDCWD, "./266/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] <... openat resumed>) = 4 [pid 5000] close(3 [pid 4998] fstat(4, [pid 5000] <... close resumed>) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] getdents64(4, [pid 9663] munmap(0x7f38d9778000, 4194304 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9664 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./266/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./266") = 0 [pid 4998] mkdir("./267", 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) = 9666 ./strace-static-x86_64: Process 9666 attached [pid 9666] set_robust_list(0x555556b565e0, 24) = 0 [pid 9666] chdir("./267" [pid 9663] <... munmap resumed>) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9665 ./strace-static-x86_64: Process 9664 attached [pid 9663] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 9665 attached [pid 9666] <... chdir resumed>) = 0 [pid 9666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9666] setpgid(0, 0 [pid 9663] <... openat resumed>) = 4 [pid 9665] set_robust_list(0x555556b565e0, 24 [pid 9663] ioctl(4, LOOP_SET_FD, 3 [pid 9666] <... setpgid resumed>) = 0 [pid 9666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9664] set_robust_list(0x555556b565e0, 24 [pid 9665] <... set_robust_list resumed>) = 0 [pid 9665] chdir("./267" [pid 9666] <... openat resumed>) = 3 [pid 9665] <... chdir resumed>) = 0 [pid 9665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9665] setpgid(0, 0 [pid 9666] write(3, "1000", 4) = 4 [pid 9666] close(3 [pid 9665] <... setpgid resumed>) = 0 [pid 9666] <... close resumed>) = 0 [pid 9665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9666] symlink("/dev/binderfs", "./binderfs" [pid 9665] <... openat resumed>) = 3 [pid 9666] <... symlink resumed>) = 0 [pid 9665] write(3, "1000", 4 [pid 9666] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9665] <... write resumed>) = 4 [pid 9666] <... futex resumed>) = 0 [pid 9665] close(3 [pid 9666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9665] <... close resumed>) = 0 [pid 9666] <... mmap resumed>) = 0x7f38e1b78000 [pid 9665] symlink("/dev/binderfs", "./binderfs" [pid 9666] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9665] <... symlink resumed>) = 0 [pid 9666] <... mprotect resumed>) = 0 [pid 9665] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9666] 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 9665] <... futex resumed>) = 0 [pid 9665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9664] <... set_robust_list resumed>) = 0 [pid 9666] <... clone resumed>, parent_tid=[9667], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9667 [pid 9665] <... mmap resumed>) = 0x7f38e1b78000 [pid 9666] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9665] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9666] <... futex resumed>) = 0 [pid 9665] <... mprotect resumed>) = 0 [pid 9664] chdir("./268" [pid 9666] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9665] 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 9664] <... chdir resumed>) = 0 [pid 9665] <... clone resumed>, parent_tid=[9668], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9668 [pid 9665] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9665] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9667 attached [pid 9667] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9667] memfd_create("syzkaller", 0 [pid 9664] <... prctl resumed>) = 0 [pid 9667] <... memfd_create resumed>) = 3 [pid 9664] setpgid(0, 0) = 0 [pid 9667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9664] write(3, "1000", 4) = 4 [pid 9664] close(3) = 0 [pid 9664] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9664] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9664] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9664] 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=[9669], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9669 [pid 9664] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9664] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9669 attached [pid 9669] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9669] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 9668 attached [pid 9663] <... ioctl resumed>) = 0 [pid 9669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9668] set_robust_list(0x7f38e1b989e0, 24 [pid 9663] close(3 [pid 9668] <... set_robust_list resumed>) = 0 [pid 9663] <... close resumed>) = 0 [pid 9663] mkdir("./file0", 0777 [pid 9668] memfd_create("syzkaller", 0 [pid 9663] <... mkdir resumed>) = 0 [pid 9668] <... memfd_create resumed>) = 3 [pid 9663] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9668] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 268.571810][ T9663] loop1: detected capacity change from 0 to 8192 [pid 9667] 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 9668] 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 [ 268.620053][ T9663] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 268.648557][ T9663] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9669] 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 9667] <... write resumed>) = 4194304 [pid 9667] munmap(0x7f38d9778000, 4194304) = 0 [pid 9667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9667] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9667] close(3) = 0 [pid 9667] mkdir("./file0", 0777) = 0 [pid 9667] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9669] <... write resumed>) = 4194304 [pid 9668] <... write resumed>) = 4194304 [ 268.679181][ T9663] REISERFS (device loop1): using ordered data mode [ 268.686679][ T9667] loop0: detected capacity change from 0 to 8192 [ 268.697323][ T9663] reiserfs: using flush barriers [ 268.703500][ T9667] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 268.716935][ T9667] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9669] munmap(0x7f38d9778000, 4194304 [pid 9668] munmap(0x7f38d9778000, 4194304 [pid 9669] <... munmap resumed>) = 0 [pid 9668] <... munmap resumed>) = 0 [pid 9669] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9669] ioctl(4, LOOP_SET_FD, 3 [pid 9668] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9669] <... ioctl resumed>) = 0 [pid 9669] close(3) = 0 [pid 9669] mkdir("./file0", 0777) = 0 [pid 9669] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9668] <... openat resumed>) = 4 [ 268.726331][ T9663] 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 [ 268.742734][ T9667] REISERFS (device loop0): using ordered data mode [ 268.743856][ T9663] REISERFS (device loop1): checking transaction log (loop1) [ 268.752416][ T9667] reiserfs: using flush barriers [ 268.759125][ T9669] loop2: detected capacity change from 0 to 8192 [pid 9668] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9668] close(3) = 0 [pid 9668] mkdir("./file0", 0777) = 0 [ 268.762702][ T9667] 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 [ 268.772991][ T9668] loop5: detected capacity change from 0 to 8192 [ 268.786181][ T9667] REISERFS (device loop0): checking transaction log (loop0) [ 268.794010][ T9663] REISERFS (device loop1): Using r5 hash to sort names [ 268.800287][ T9667] REISERFS (device loop0): Using r5 hash to sort names [ 268.806769][ T9663] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9668] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9667] <... mount resumed>) = 0 [ 268.812546][ T9667] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 268.824974][ T9669] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 268.837608][ T9667] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 268.851668][ T9663] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 268.869163][ T9669] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9667] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9667] chdir("./file0") = 0 [pid 9667] ioctl(4, LOOP_CLR_FD) = 0 [pid 9667] close(4) = 0 [pid 9667] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9666] <... futex resumed>) = 0 [pid 9666] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9666] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9667] <... futex resumed>) = 1 [pid 9667] mkdir("./file1", 000) = 0 [pid 9667] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9666] <... futex resumed>) = 0 [pid 9666] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9666] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9667] <... futex resumed>) = 1 [pid 9667] mkdir("./bus", 000) = 0 [pid 9667] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9666] <... futex resumed>) = 0 [pid 9666] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9666] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9667] <... futex resumed>) = 1 [pid 9667] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9663] <... mount resumed>) = 0 [ 268.869516][ T9668] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 268.895458][ T9668] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 268.898479][ T9667] overlayfs: upper fs needs to support d_type. [ 268.905091][ T9668] REISERFS (device loop5): using ordered data mode [ 268.911792][ T9669] REISERFS (device loop2): using ordered data mode [ 268.917373][ T9668] reiserfs: using flush barriers [pid 9663] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9666] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9663] <... openat resumed>) = 3 [pid 9666] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9663] chdir("./file0" [pid 9666] <... futex resumed>) = 0 [pid 9663] <... chdir resumed>) = 0 [pid 9666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9663] ioctl(4, LOOP_CLR_FD [pid 9666] <... mmap resumed>) = 0x7f38d9b57000 [pid 9663] <... ioctl resumed>) = 0 [pid 9666] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9663] close(4 [pid 9666] <... mprotect resumed>) = 0 [pid 9663] <... close resumed>) = 0 [pid 9666] 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 9663] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9662] <... futex resumed>) = 0 [pid 9666] <... clone resumed>, parent_tid=[9674], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9674 [pid 9663] mkdir("./file1", 000 [pid 9662] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9666] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9663] <... mkdir resumed>) = 0 [pid 9662] <... futex resumed>) = 0 [pid 9666] <... futex resumed>) = 0 [pid 9663] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9662] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9666] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9663] <... futex resumed>) = 0 [pid 9662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9663] mkdir("./bus", 000 [pid 9662] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9663] <... mkdir resumed>) = 0 [pid 9662] <... futex resumed>) = 0 [pid 9663] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9662] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9663] <... futex resumed>) = 0 [pid 9662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9663] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9662] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 268.918873][ T9667] overlayfs: upper fs does not support tmpfile. [ 268.935406][ T9668] 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 [ 268.941121][ T9669] reiserfs: using flush barriers [ 268.954260][ T9668] REISERFS (device loop5): checking transaction log (loop5) [ 268.958075][ T9667] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 268.974839][ T9667] overlayfs: failed to resolve './file0': -2 [pid 9662] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9674 attached [pid 9674] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9674] mkdir(".", 0777) = -1 EEXIST (File exists) [ 268.978945][ T9668] REISERFS (device loop5): Using r5 hash to sort names [ 268.980955][ T9669] 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 [ 269.005301][ T9669] REISERFS (device loop2): checking transaction log (loop2) [ 269.006362][ T9663] overlayfs: upper fs needs to support d_type. [pid 9674] 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 9662] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9662] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9674] <... mount resumed>) = 0 [pid 9674] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9674] chdir(".") = 0 [pid 9674] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9674] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9662] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9666] <... futex resumed>) = 0 [pid 9662] <... mprotect resumed>) = 0 [pid 9662] 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=[9675], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9675 [pid 9662] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9662] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9675 attached [ 269.013220][ T9668] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 269.033309][ T9669] REISERFS (device loop2): Using r5 hash to sort names [ 269.034086][ T9663] overlayfs: upper fs does not support tmpfile. [ 269.041328][ T9669] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 269.067468][ T9663] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9675] set_robust_list(0x7f38d9b779e0, 24 [pid 9668] <... mount resumed>) = 0 [pid 9668] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9668] chdir("./file0") = 0 [pid 9668] ioctl(4, LOOP_CLR_FD) = 0 [pid 9668] close(4 [pid 9675] <... set_robust_list resumed>) = 0 [pid 9667] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9675] mkdir(".", 0777 [pid 9667] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9675] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9667] <... futex resumed>) = 0 [pid 9675] 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 9667] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9669] <... mount resumed>) = 0 [pid 9668] <... close resumed>) = 0 [pid 9666] exit_group(0 [pid 9674] <... futex resumed>) = ? [pid 9669] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9668] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9667] <... futex resumed>) = ? [pid 9666] <... exit_group resumed>) = ? [pid 9675] <... mount resumed>) = 0 [pid 9674] +++ exited with 0 +++ [pid 9675] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9675] chdir(".") = 0 [pid 9667] +++ exited with 0 +++ [pid 9666] +++ exited with 0 +++ [pid 9675] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9662] <... futex resumed>) = 0 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9666, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 9675] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] umount2("./267", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, [pid 9669] <... openat resumed>) = 3 [pid 9668] <... futex resumed>) = 1 [pid 9665] <... futex resumed>) = 0 [pid 9663] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9665] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9663] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] getdents64(3, [pid 9665] <... futex resumed>) = 0 [pid 9663] <... futex resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9665] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9663] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] umount2("./267/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9669] chdir("./file0" [pid 9668] mkdir("./file1", 000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9669] <... chdir resumed>) = 0 [pid 9668] <... mkdir resumed>) = 0 [ 269.071073][ T9668] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 269.076858][ T9663] overlayfs: failed to resolve './file0': -2 [ 269.084286][ T9669] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9662] exit_group(0 [pid 4998] lstat("./267/binderfs", [pid 9675] <... futex resumed>) = ? [pid 9669] ioctl(4, LOOP_CLR_FD [pid 9668] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9663] <... futex resumed>) = ? [pid 9662] <... exit_group resumed>) = ? [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9675] +++ exited with 0 +++ [pid 9669] <... ioctl resumed>) = 0 [pid 9668] <... futex resumed>) = 1 [pid 9665] <... futex resumed>) = 0 [pid 9663] +++ exited with 0 +++ [pid 9662] +++ exited with 0 +++ [pid 4998] unlink("./267/binderfs" [pid 9669] close(4 [pid 9668] mkdir("./bus", 000 [pid 9665] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9662, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4998] <... unlink resumed>) = 0 [pid 9669] <... close resumed>) = 0 [pid 9668] <... mkdir resumed>) = 0 [pid 9665] <... futex resumed>) = 0 [pid 4998] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9669] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9668] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9665] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9669] <... futex resumed>) = 1 [pid 9668] <... futex resumed>) = 0 [pid 9665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9664] <... futex resumed>) = 0 [pid 4999] umount2("./267", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9669] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9668] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9665] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9664] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9665] <... futex resumed>) = 0 [pid 9664] <... futex resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9669] mkdir("./file1", 000 [pid 9668] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9665] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9664] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... openat resumed>) = 3 [pid 9669] <... mkdir resumed>) = 0 [pid 4999] fstat(3, [pid 9669] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9669] <... futex resumed>) = 1 [pid 9664] <... futex resumed>) = 0 [pid 4999] getdents64(3, [pid 9669] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9664] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9664] <... futex resumed>) = 0 [pid 4999] umount2("./267/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9669] mkdir("./bus", 000 [pid 9664] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9669] <... mkdir resumed>) = 0 [pid 4999] lstat("./267/binderfs", [pid 9669] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9669] <... futex resumed>) = 1 [pid 9664] <... futex resumed>) = 0 [pid 4999] unlink("./267/binderfs" [pid 9669] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9664] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... unlink resumed>) = 0 [pid 9669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9664] <... futex resumed>) = 0 [pid 4999] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9669] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9664] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9665] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9665] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9665] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9665] 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=[9676], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9676 [pid 9665] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9665] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9664] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4998] <... umount2 resumed>) = 0 [pid 9664] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9664] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9664] 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=[9677], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9677 [pid 9664] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9664] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9677 attached [pid 9677] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9677] mkdir(".", 0777) = -1 EEXIST (File exists) [ 269.123246][ T9668] overlayfs: upper fs needs to support d_type. [ 269.134589][ T9668] overlayfs: upper fs does not support tmpfile. [ 269.141398][ T9669] overlayfs: upper fs needs to support d_type. [ 269.145627][ T9668] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 269.154205][ T9669] overlayfs: upper fs does not support tmpfile. [pid 9677] 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 9676 attached [pid 9676] set_robust_list(0x7f38d9b779e0, 24 [pid 9677] <... mount resumed>) = 0 [pid 9676] <... set_robust_list resumed>) = 0 [pid 9677] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9677] chdir(".") = 0 [pid 9677] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9664] <... futex resumed>) = 0 [pid 9677] <... futex resumed>) = 1 [pid 9676] mkdir(".", 0777 [pid 9677] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9676] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9676] 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 4999] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./267/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./267/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("./267/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./267") = 0 [pid 4999] mkdir("./268", 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 9676] <... mount resumed>) = 0 [pid 4998] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9676] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9676] chdir(".") = 0 [pid 4998] lstat("./267/file0", [pid 9676] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9676] <... futex resumed>) = 1 [pid 9665] <... futex resumed>) = 0 [pid 9676] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9678 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./267/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("./267/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./267") = 0 [pid 4998] mkdir("./268", 0777./strace-static-x86_64: Process 9678 attached [pid 9678] set_robust_list(0x555556b565e0, 24 [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 [pid 9678] <... set_robust_list resumed>) = 0 [pid 9678] chdir("./268") = 0 [pid 9678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9678] setpgid(0, 0) = 0 [pid 9678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9678] <... openat resumed>) = 3 [pid 9678] write(3, "1000", 4) = 4 [pid 9678] close(3./strace-static-x86_64: Process 9679 attached ) = 0 [pid 9668] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9679 [pid 9679] set_robust_list(0x555556b565e0, 24 [pid 9678] symlink("/dev/binderfs", "./binderfs" [pid 9668] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9678] <... symlink resumed>) = 0 [pid 9668] <... futex resumed>) = 0 [pid 9678] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9668] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9665] exit_group(0 [pid 9678] <... futex resumed>) = 0 [pid 9676] <... futex resumed>) = ? [pid 9668] <... futex resumed>) = ? [pid 9665] <... exit_group resumed>) = ? [pid 9679] <... set_robust_list resumed>) = 0 [pid 9678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9676] +++ exited with 0 +++ [pid 9668] +++ exited with 0 +++ [pid 9665] +++ exited with 0 +++ [pid 9679] chdir("./268" [pid 9678] <... mmap resumed>) = 0x7f38e1b78000 [pid 9669] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9665, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 9678] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9679] <... chdir resumed>) = 0 [pid 9669] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9678] <... mprotect resumed>) = 0 [pid 9679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9669] <... futex resumed>) = 0 [pid 9664] exit_group(0 [pid 5003] umount2("./267", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9679] <... prctl resumed>) = 0 [pid 9677] <... futex resumed>) = ? [pid 9664] <... exit_group resumed>) = ? [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9679] setpgid(0, 0 [pid 9677] +++ exited with 0 +++ [pid 9669] +++ exited with 0 +++ [pid 5003] openat(AT_FDCWD, "./267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9679] <... setpgid resumed>) = 0 [pid 5003] <... openat resumed>) = 3 [pid 9679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] fstat(3, [pid 9679] <... openat resumed>) = 3 [pid 9664] +++ exited with 0 +++ [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9679] write(3, "1000", 4 [pid 5003] getdents64(3, [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9664, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 9679] <... write resumed>) = 4 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9679] close(3 [pid 9678] 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] umount2("./267/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9679] <... close resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 269.191730][ T9669] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 269.222070][ T9668] overlayfs: failed to resolve './file0': -2 [ 269.229492][ T9669] overlayfs: failed to resolve './file0': -2 [pid 9679] symlink("/dev/binderfs", "./binderfs" [pid 5003] lstat("./267/binderfs", [pid 9679] <... symlink resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9679] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] unlink("./267/binderfs"./strace-static-x86_64: Process 9680 attached [pid 9679] <... futex resumed>) = 0 [pid 9678] <... clone resumed>, parent_tid=[9680], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9680 [pid 5003] <... unlink resumed>) = 0 [pid 9680] set_robust_list(0x7f38e1b989e0, 24 [pid 9679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9678] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./268", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9680] <... set_robust_list resumed>) = 0 [pid 9679] <... mmap resumed>) = 0x7f38e1b78000 [pid 9678] <... futex resumed>) = 0 [pid 9679] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9678] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9680] memfd_create("syzkaller", 0 [pid 9679] <... mprotect resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./268", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9680] <... memfd_create resumed>) = 3 [pid 9679] 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] <... openat resumed>) = 3 [pid 9680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] fstat(3, [pid 9680] <... mmap resumed>) = 0x7f38d9778000 [pid 9679] <... clone resumed>, parent_tid=[9681], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9681 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9679] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(3, [pid 9679] <... futex resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9679] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] umount2("./268/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./268/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./268/binderfs") = 0 [pid 5000] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9681 attached [pid 9681] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9681] memfd_create("syzkaller", 0) = 3 [pid 9681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./267/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./267/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("./267/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./267") = 0 [pid 5003] mkdir("./268", 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) = 9682 ./strace-static-x86_64: Process 9682 attached [pid 9682] set_robust_list(0x555556b565e0, 24) = 0 [pid 9682] chdir("./268") = 0 [pid 9682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9682] setpgid(0, 0) = 0 [pid 9682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9681] 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 9680] 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 9682] write(3, "1000", 4) = 4 [pid 9682] close(3) = 0 [pid 9682] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9682] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9682] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9682] 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=[9683], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9683 [pid 9682] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9682] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9683 attached [pid 9683] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9683] memfd_create("syzkaller", 0) = 3 [pid 9683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./268/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./268/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("./268/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./268") = 0 [pid 5000] mkdir("./269", 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 9681] <... write resumed>) = 4194304 [pid 5000] <... close resumed>) = 0 [pid 9681] munmap(0x7f38d9778000, 4194304 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9681] <... munmap resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9684 [pid 9681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9681] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9684 attached [pid 9684] set_robust_list(0x555556b565e0, 24) = 0 [pid 9684] chdir("./269") = 0 [pid 9684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9684] setpgid(0, 0) = 0 [pid 9684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9680] <... write resumed>) = 4194304 [pid 9680] munmap(0x7f38d9778000, 4194304 [pid 9684] write(3, "1000", 4) = 4 [pid 9684] close(3) = 0 [pid 9684] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9680] <... munmap resumed>) = 0 [pid 9684] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9684] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9681] <... ioctl resumed>) = 0 [pid 9681] close(3 [pid 9684] <... mprotect resumed>) = 0 [pid 9684] 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 9680] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9681] <... close resumed>) = 0 [pid 9681] mkdir("./file0", 0777 [pid 9684] <... clone resumed>, parent_tid=[9685], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9685 [pid 9684] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9684] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9680] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9685 attached [pid 9683] 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 9681] <... mkdir resumed>) = 0 [pid 9685] set_robust_list(0x7f38e1b989e0, 24 [pid 9680] <... ioctl resumed>) = 0 [pid 9680] close(3) = 0 [pid 9680] mkdir("./file0", 0777 [pid 9681] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9680] <... mkdir resumed>) = 0 [pid 9680] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9685] <... set_robust_list resumed>) = 0 [ 269.435449][ T9681] loop0: detected capacity change from 0 to 8192 [ 269.450726][ T9680] loop1: detected capacity change from 0 to 8192 [ 269.462038][ T9680] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9685] memfd_create("syzkaller", 0) = 3 [pid 9685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9683] <... write resumed>) = 4194304 [pid 9683] munmap(0x7f38d9778000, 4194304) = 0 [pid 9683] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9683] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9683] close(3) = 0 [pid 9683] mkdir("./file0", 0777) = 0 [ 269.462364][ T9681] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 269.489127][ T9681] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 269.490934][ T9680] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 269.499106][ T9681] REISERFS (device loop0): using ordered data mode [ 269.524070][ T9683] loop5: detected capacity change from 0 to 8192 [ 269.524944][ T9681] reiserfs: using flush barriers [pid 9683] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 269.533368][ T9680] REISERFS (device loop1): using ordered data mode [ 269.543018][ T9683] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 269.548118][ T9681] 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 [ 269.556335][ T9680] reiserfs: using flush barriers [ 269.572621][ T9683] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 9685] 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 9685] munmap(0x7f38d9778000, 4194304) = 0 [pid 9685] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 269.586706][ T9683] REISERFS (device loop5): using ordered data mode [ 269.593222][ T9683] reiserfs: using flush barriers [ 269.599232][ T9683] 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 [ 269.612579][ T9681] REISERFS (device loop0): checking transaction log (loop0) [ 269.615882][ T9683] REISERFS (device loop5): checking transaction log (loop5) [ 269.627380][ T9685] loop2: detected capacity change from 0 to 8192 [pid 9685] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9685] close(3) = 0 [pid 9685] mkdir("./file0", 0777) = 0 [ 269.638124][ T9683] REISERFS (device loop5): Using r5 hash to sort names [ 269.642094][ T9680] 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 [ 269.645470][ T9683] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 269.662984][ T9681] REISERFS (device loop0): Using r5 hash to sort names [pid 9685] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9683] <... mount resumed>) = 0 [ 269.674195][ T9683] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 269.682060][ T9685] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 269.690740][ T9680] REISERFS (device loop1): checking transaction log (loop1) [ 269.704395][ T9685] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 269.711481][ T9681] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9683] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9683] chdir("./file0") = 0 [pid 9683] ioctl(4, LOOP_CLR_FD) = 0 [pid 9683] close(4) = 0 [pid 9683] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9682] <... futex resumed>) = 0 [pid 9683] mkdir("./file1", 000 [pid 9682] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9683] <... mkdir resumed>) = 0 [pid 9682] <... futex resumed>) = 0 [pid 9683] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9682] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9683] <... futex resumed>) = 0 [pid 9682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9683] mkdir("./bus", 000 [pid 9682] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9683] <... mkdir resumed>) = 0 [pid 9682] <... futex resumed>) = 0 [pid 9683] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9682] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9683] <... futex resumed>) = 0 [pid 9682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9683] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9682] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 269.721019][ T9685] REISERFS (device loop2): using ordered data mode [ 269.733751][ T9680] REISERFS (device loop1): Using r5 hash to sort names [ 269.739470][ T9685] reiserfs: using flush barriers [ 269.753283][ T9685] 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 [ 269.770540][ T9685] REISERFS (device loop2): checking transaction log (loop2) [ 269.778867][ T9685] REISERFS (device loop2): Using r5 hash to sort names [pid 9682] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9685] <... mount resumed>) = 0 [ 269.786006][ T9685] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 269.786211][ T9683] overlayfs: upper fs needs to support d_type. [ 269.786241][ T9683] overlayfs: upper fs does not support tmpfile. [ 269.799348][ T9685] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 269.808632][ T9680] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9685] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9682] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9680] <... mount resumed>) = 0 [pid 9680] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9680] chdir("./file0") = 0 [pid 9680] ioctl(4, LOOP_CLR_FD) = 0 [pid 9680] close(4 [pid 9685] <... openat resumed>) = 3 [pid 9682] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9681] <... mount resumed>) = 0 [pid 9680] <... close resumed>) = 0 [pid 9680] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9678] <... futex resumed>) = 0 [pid 9678] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9678] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9685] chdir("./file0" [pid 9682] <... futex resumed>) = 0 [pid 9680] <... futex resumed>) = 1 [pid 9681] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9682] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9685] <... chdir resumed>) = 0 [pid 9681] <... openat resumed>) = 3 [pid 9685] ioctl(4, LOOP_CLR_FD [pid 9682] <... mmap resumed>) = 0x7f38d9b57000 [pid 9681] chdir("./file0" [pid 9685] <... ioctl resumed>) = 0 [pid 9682] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9681] <... chdir resumed>) = 0 [pid 9685] close(4 [pid 9682] <... mprotect resumed>) = 0 [pid 9681] ioctl(4, LOOP_CLR_FD [pid 9685] <... close resumed>) = 0 [pid 9682] 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 9681] <... ioctl resumed>) = 0 [pid 9685] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9681] close(4 [pid 9685] <... futex resumed>) = 1 [pid 9684] <... futex resumed>) = 0 [pid 9685] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9684] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9681] <... close resumed>) = 0 [pid 9682] <... clone resumed>, parent_tid=[9690], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9690 [pid 9685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9684] <... futex resumed>) = 0 [pid 9681] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9685] mkdir("./file1", 000 [pid 9684] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9682] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9685] <... mkdir resumed>) = 0 [pid 9681] <... futex resumed>) = 1 [pid 9682] <... futex resumed>) = 0 [pid 9679] <... futex resumed>) = 0 [pid 9685] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9682] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9681] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9679] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9685] <... futex resumed>) = 1 [pid 9684] <... futex resumed>) = 0 [pid 9681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9679] <... futex resumed>) = 0 [pid 9685] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9684] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9681] mkdir("./file1", 000 [pid 9679] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9684] <... futex resumed>) = 0 [pid 9681] <... mkdir resumed>) = 0 [pid 9685] mkdir("./bus", 000 [pid 9684] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9681] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9685] <... mkdir resumed>) = 0 [pid 9681] <... futex resumed>) = 1 [pid 9680] mkdir("./file1", 000 [pid 9679] <... futex resumed>) = 0 [pid 9685] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9680] <... mkdir resumed>) = 0 [pid 9680] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9685] <... futex resumed>) = 1 [pid 9684] <... futex resumed>) = 0 [pid 9681] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9680] <... futex resumed>) = 1 [pid 9679] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9678] <... futex resumed>) = 0 [pid 9685] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9684] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9680] mkdir("./bus", 000 [pid 9679] <... futex resumed>) = 0 [pid 9678] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9684] <... futex resumed>) = 0 [pid 9681] mkdir("./bus", 000 [pid 9680] <... mkdir resumed>) = 0 [pid 9679] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9678] <... futex resumed>) = 0 [pid 9685] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9684] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9681] <... mkdir resumed>) = 0 [pid 9680] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9678] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9690 attached [pid 9681] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9680] <... futex resumed>) = 0 [pid 9678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 269.824393][ T9681] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 269.835425][ T9680] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 269.843529][ T9683] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 269.860456][ T9683] overlayfs: failed to resolve './file0': -2 [pid 9690] set_robust_list(0x7f38d9b779e0, 24 [pid 9680] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9678] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9690] <... set_robust_list resumed>) = 0 [pid 9680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9678] <... futex resumed>) = 0 [pid 9690] mkdir(".", 0777 [pid 9680] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9678] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9690] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9690] 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 9681] <... futex resumed>) = 1 [pid 9679] <... futex resumed>) = 0 [pid 9681] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9679] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9681] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9679] <... futex resumed>) = 0 [pid 9681] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9679] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9683] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9683] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9684] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 269.893032][ T9685] overlayfs: upper fs needs to support d_type. [ 269.899629][ T9685] overlayfs: upper fs does not support tmpfile. [ 269.900215][ T9680] overlayfs: upper fs needs to support d_type. [ 269.906606][ T9685] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 269.920707][ T9681] overlayfs: upper fs needs to support d_type. [ 269.921689][ T9680] overlayfs: upper fs does not support tmpfile. [ 269.935482][ T9680] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9684] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9683] <... futex resumed>) = 0 [pid 9678] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9684] <... futex resumed>) = 0 [pid 9683] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9678] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9684] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9678] <... futex resumed>) = 0 [pid 9690] <... mount resumed>) = 0 [pid 9684] 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 9678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9690] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9678] <... mmap resumed>) = 0x7f38d9b57000 [pid 9690] <... openat resumed>) = 4 [pid 9678] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9690] chdir("." [pid 9678] <... mprotect resumed>) = 0 [pid 9690] <... chdir resumed>) = 0 [pid 9678] 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 9690] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9678] <... clone resumed>, parent_tid=[9692], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9692 [pid 9690] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9678] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9678] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9692 attached [pid 9692] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9692] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9692] 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 9684] <... clone resumed>, parent_tid=[9691], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9691 [pid 9682] <... futex resumed>) = 0 [pid 9684] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9682] exit_group(0 [pid 9684] <... futex resumed>) = 0 [pid 9679] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9690] <... futex resumed>) = ? [pid 9683] <... futex resumed>) = ? [pid 9682] <... exit_group resumed>) = ? [pid 9690] +++ exited with 0 +++ [pid 9684] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9683] +++ exited with 0 +++ [pid 9679] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9682] +++ exited with 0 +++ [pid 9679] <... futex resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9682, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 9679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9691 attached [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 9691] set_robust_list(0x7f38d9b779e0, 24 [pid 9679] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] <... restart_syscall resumed>) = 0 [pid 9691] <... set_robust_list resumed>) = 0 [pid 9679] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9691] mkdir(".", 0777 [pid 9679] <... mprotect resumed>) = 0 [pid 9679] 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 9691] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5003] umount2("./268", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9691] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9679] <... clone resumed>, parent_tid=[9693], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9693 [pid 5003] openat(AT_FDCWD, "./268", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9679] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... openat resumed>) = 3 [pid 9679] <... futex resumed>) = 0 [pid 5003] fstat(3, [pid 9679] 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 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 9693 attached [pid 9691] <... mount resumed>) = 0 [pid 5003] umount2("./268/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9693] set_robust_list(0x7f38d9b779e0, 24 [pid 9691] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9693] <... set_robust_list resumed>) = 0 [pid 9691] <... openat resumed>) = 4 [ 269.942886][ T9681] overlayfs: upper fs does not support tmpfile. [ 269.946194][ T9680] overlayfs: failed to resolve './file0': -2 [ 269.960069][ T9681] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 269.982097][ T9685] overlayfs: failed to resolve './file0': -2 [pid 5003] lstat("./268/binderfs", [pid 9693] mkdir(".", 0777 [pid 9691] chdir("." [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./268/binderfs") = 0 [pid 5003] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9692] <... mount resumed>) = 0 [pid 9692] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9693] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9691] <... chdir resumed>) = 0 [pid 9693] 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 9691] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9692] <... openat resumed>) = 4 [pid 9691] <... futex resumed>) = 1 [pid 9684] <... futex resumed>) = 0 [pid 9691] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9692] chdir(".") = 0 [pid 9692] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9678] <... futex resumed>) = 0 [pid 9692] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9693] <... mount resumed>) = 0 [pid 9680] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9693] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9680] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9678] exit_group(0 [pid 9692] <... futex resumed>) = ? [pid 9678] <... exit_group resumed>) = ? [pid 9692] +++ exited with 0 +++ [pid 9680] +++ exited with 0 +++ [pid 9678] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9678, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./268", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./268", 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, [pid 9693] <... openat resumed>) = 4 [pid 9685] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9693] chdir("." [pid 9685] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9693] <... chdir resumed>) = 0 [pid 9685] <... futex resumed>) = 0 [pid 9684] exit_group(0 [pid 9693] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9691] <... futex resumed>) = ? [pid 9684] <... exit_group resumed>) = ? [pid 9693] <... futex resumed>) = 1 [pid 9691] +++ exited with 0 +++ [pid 9685] +++ exited with 0 +++ [pid 9684] +++ exited with 0 +++ [pid 9679] <... futex resumed>) = 0 [pid 4999] umount2("./268/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9693] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9684, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 4999] lstat("./268/binderfs", [pid 5000] umount2("./269", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] openat(AT_FDCWD, "./269", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] unlink("./268/binderfs" [pid 5000] <... openat resumed>) = 3 [pid 4999] <... unlink resumed>) = 0 [pid 5000] fstat(3, [pid 4999] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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("./269/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./269/binderfs") = 0 [pid 5000] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9681] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9681] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9679] exit_group(0 [pid 9681] <... futex resumed>) = ? [pid 9693] <... futex resumed>) = ? [pid 9679] <... exit_group resumed>) = ? [pid 9693] +++ exited with 0 +++ [pid 9681] +++ exited with 0 +++ [pid 9679] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9679, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 4998] umount2("./268", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./268", 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("./268/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./268/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./268/binderfs") = 0 [ 269.995159][ T9681] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./268/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./268/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("./268/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./268") = 0 [pid 5003] mkdir("./269", 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) = 9694 ./strace-static-x86_64: Process 9694 attached [pid 9694] set_robust_list(0x555556b565e0, 24) = 0 [pid 9694] chdir("./269") = 0 [pid 9694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9694] setpgid(0, 0) = 0 [pid 9694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9694] write(3, "1000", 4) = 4 [pid 9694] close(3) = 0 [pid 9694] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9694] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9694] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9694] 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=[9695], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9695 [pid 9694] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9694] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./268/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./268/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("./268/file0") = 0 [pid 4998] getdents64(3, ./strace-static-x86_64: Process 9695 attached 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9695] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./268" [pid 9695] memfd_create("syzkaller", 0 [pid 4998] <... rmdir resumed>) = 0 [pid 9695] <... memfd_create resumed>) = 3 [pid 9695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] mkdir("./269", 0777 [pid 9695] <... mmap resumed>) = 0x7f38d9778000 [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, child_tidptr=0x555556b565d0) = 9696 ./strace-static-x86_64: Process 9696 attached [pid 9696] set_robust_list(0x555556b565e0, 24) = 0 [pid 9696] chdir("./269") = 0 [pid 9696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9696] setpgid(0, 0) = 0 [pid 9696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] <... umount2 resumed>) = 0 [pid 9696] write(3, "1000", 4) = 4 [pid 9696] close(3) = 0 [pid 9696] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9696] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5000] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9696] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9696] 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 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9696] <... clone resumed>, parent_tid=[9697], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9697 [pid 9696] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9696] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9697 attached [pid 5000] lstat("./269/file0", [pid 4999] lstat("./268/file0", [pid 5000] <... 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 5000] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./269/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "./268/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... openat resumed>) = 4 [pid 4999] <... openat resumed>) = 4 [pid 5000] fstat(4, [pid 4999] fstat(4, [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(4, [pid 4999] getdents64(4, [pid 9697] set_robust_list(0x7f38e1b989e0, 24 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9697] <... set_robust_list resumed>) = 0 [pid 5000] getdents64(4, [pid 4999] getdents64(4, [pid 9697] memfd_create("syzkaller", 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9697] <... memfd_create resumed>) = 3 [pid 5000] close(4 [pid 4999] close(4 [pid 9697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 9697] <... mmap resumed>) = 0x7f38d9778000 [pid 5000] rmdir("./269/file0" [pid 4999] rmdir("./268/file0" [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 4999] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 4999] close(3 [pid 5000] <... close resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 5000] rmdir("./269" [pid 4999] rmdir("./268" [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9695] 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] mkdir("./270", 0777 [pid 4999] mkdir("./269", 0777 [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... mkdir resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5000] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4999] <... openat resumed>) = 3 [pid 5000] close(3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] <... close resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] close(3) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9698 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9699 [pid 9697] 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 9699 attached [pid 9699] set_robust_list(0x555556b565e0, 24) = 0 [pid 9699] chdir("./269") = 0 [pid 9699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9699] setpgid(0, 0) = 0 [pid 9699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9699] write(3, "1000", 4) = 4 [pid 9699] close(3) = 0 [pid 9699] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 9698 attached ) = 0 [pid 9699] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9698] set_robust_list(0x555556b565e0, 24 [pid 9699] <... futex resumed>) = 0 [pid 9698] <... set_robust_list resumed>) = 0 [pid 9698] chdir("./270") = 0 [pid 9698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9698] setpgid(0, 0) = 0 [pid 9699] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9699] <... mmap resumed>) = 0x7f38e1b78000 [pid 9698] <... openat resumed>) = 3 [pid 9699] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9698] write(3, "1000", 4 [pid 9699] <... mprotect resumed>) = 0 [pid 9698] <... write resumed>) = 4 [pid 9699] 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 9698] close(3) = 0 [pid 9695] <... write resumed>) = 4194304 [pid 9699] <... clone resumed>, parent_tid=[9700], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9700 [pid 9698] symlink("/dev/binderfs", "./binderfs" [pid 9699] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9698] <... symlink resumed>) = 0 [pid 9699] <... futex resumed>) = 0 [pid 9698] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9699] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9698] <... futex resumed>) = 0 [pid 9698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9698] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 9700 attached [pid 9697] <... write resumed>) = 4194304 [pid 9695] munmap(0x7f38d9778000, 4194304 [pid 9700] set_robust_list(0x7f38e1b989e0, 24 [pid 9698] 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 9697] munmap(0x7f38d9778000, 4194304 [pid 9700] <... set_robust_list resumed>) = 0 [pid 9698] <... clone resumed>, parent_tid=[9701], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9701 [pid 9698] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9700] memfd_create("syzkaller", 0 [pid 9698] <... futex resumed>) = 0 [pid 9697] <... munmap resumed>) = 0 [pid 9700] <... memfd_create resumed>) = 3 [pid 9698] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9697] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 9701 attached [pid 9700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9697] <... openat resumed>) = 4 [pid 9695] <... munmap resumed>) = 0 [pid 9700] <... mmap resumed>) = 0x7f38d9778000 [pid 9697] ioctl(4, LOOP_SET_FD, 3 [pid 9695] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9701] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9701] memfd_create("syzkaller", 0) = 3 [pid 9701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9695] <... openat resumed>) = 4 [pid 9695] ioctl(4, LOOP_SET_FD, 3 [pid 9697] <... ioctl resumed>) = 0 [pid 9697] close(3) = 0 [pid 9697] mkdir("./file0", 0777) = 0 [pid 9697] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9695] <... ioctl resumed>) = 0 [pid 9695] close(3) = 0 [pid 9695] mkdir("./file0", 0777) = 0 [pid 9695] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9701] 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 [ 270.256238][ T9697] loop0: detected capacity change from 0 to 8192 [ 270.267115][ T9695] loop5: detected capacity change from 0 to 8192 [ 270.289342][ T9697] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 270.302833][ T9697] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 270.312130][ T9697] REISERFS (device loop0): using ordered data mode [ 270.318913][ T9695] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 270.332683][ T9697] reiserfs: using flush barriers [ 270.338402][ T9695] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 9700] 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 9701] <... write resumed>) = 4194304 [pid 9700] <... write resumed>) = 4194304 [pid 9701] munmap(0x7f38d9778000, 4194304 [pid 9700] munmap(0x7f38d9778000, 4194304 [pid 9701] <... munmap resumed>) = 0 [pid 9700] <... munmap resumed>) = 0 [pid 9701] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9701] ioctl(4, LOOP_SET_FD, 3 [ 270.344840][ T9697] 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 [ 270.348338][ T9695] REISERFS (device loop5): using ordered data mode [ 270.365337][ T9697] REISERFS (device loop0): checking transaction log (loop0) [ 270.372178][ T9695] reiserfs: using flush barriers [ 270.382285][ T9697] REISERFS (device loop0): Using r5 hash to sort names [ 270.386345][ T9701] loop2: detected capacity change from 0 to 8192 [pid 9700] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9701] <... ioctl resumed>) = 0 [pid 9701] close(3) = 0 [pid 9701] mkdir("./file0", 0777) = 0 [pid 9701] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 270.390615][ T9697] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 270.398274][ T9695] 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 [ 270.409870][ T9697] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 270.431546][ T9695] REISERFS (device loop5): checking transaction log (loop5) [ 270.442926][ T9700] loop1: detected capacity change from 0 to 8192 [pid 9700] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9700] close(3) = 0 [pid 9697] <... mount resumed>) = 0 [pid 9700] mkdir("./file0", 0777 [pid 9697] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9700] <... mkdir resumed>) = 0 [pid 9697] <... openat resumed>) = 3 [pid 9700] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9697] chdir("./file0") = 0 [pid 9697] ioctl(4, LOOP_CLR_FD) = 0 [pid 9697] close(4) = 0 [pid 9697] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9696] <... futex resumed>) = 0 [pid 9697] mkdir("./file1", 000 [pid 9696] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9697] <... mkdir resumed>) = 0 [pid 9696] <... futex resumed>) = 0 [pid 9697] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9696] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9697] <... futex resumed>) = 0 [pid 9696] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9697] mkdir("./bus", 000 [pid 9696] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9697] <... mkdir resumed>) = 0 [pid 9696] <... futex resumed>) = 0 [pid 9697] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9696] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9697] <... futex resumed>) = 0 [pid 9696] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9697] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9696] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 270.443886][ T9701] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 270.465452][ T9701] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 270.465681][ T9695] REISERFS (device loop5): Using r5 hash to sort names [ 270.475009][ T9701] REISERFS (device loop2): using ordered data mode [ 270.489810][ T9697] overlayfs: upper fs needs to support d_type. [ 270.489840][ T9697] overlayfs: upper fs does not support tmpfile. [pid 9696] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9695] <... mount resumed>) = 0 [ 270.496298][ T9695] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 270.515537][ T9695] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 270.525921][ T9697] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 270.525923][ T9700] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 270.525943][ T9700] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9696] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9695] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9696] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9696] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9696] 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=[9706], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9706 [pid 9696] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9696] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9706 attached [pid 9695] <... openat resumed>) = 3 [pid 9706] set_robust_list(0x7f38d9b779e0, 24 [pid 9697] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9695] chdir("./file0" [pid 9706] <... set_robust_list resumed>) = 0 [pid 9697] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9695] <... chdir resumed>) = 0 [ 270.533970][ T9697] overlayfs: failed to resolve './file0': -2 [ 270.548213][ T9701] reiserfs: using flush barriers [ 270.555782][ T9700] REISERFS (device loop1): using ordered data mode [ 270.568961][ T9701] 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 [ 270.573878][ T9700] reiserfs: using flush barriers [ 270.589486][ T9701] REISERFS (device loop2): checking transaction log (loop2) [pid 9706] mkdir(".", 0777 [pid 9697] <... futex resumed>) = 0 [pid 9695] ioctl(4, LOOP_CLR_FD [pid 9706] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9697] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9695] <... ioctl resumed>) = 0 [pid 9706] 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 9695] close(4) = 0 [pid 9695] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9694] <... futex resumed>) = 0 [pid 9695] mkdir("./file1", 000 [pid 9694] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9695] <... mkdir resumed>) = 0 [pid 9694] <... futex resumed>) = 0 [pid 9694] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9695] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9694] <... futex resumed>) = 0 [pid 9706] <... mount resumed>) = 0 [pid 9695] mkdir("./bus", 000 [pid 9694] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9706] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9695] <... mkdir resumed>) = 0 [pid 9694] <... futex resumed>) = 0 [pid 9706] <... openat resumed>) = 4 [pid 9695] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9694] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9706] chdir("." [pid 9695] <... futex resumed>) = 0 [pid 9694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9706] <... chdir resumed>) = 0 [pid 9695] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9694] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9706] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9694] <... futex resumed>) = 0 [pid 9706] <... futex resumed>) = 1 [pid 9696] <... futex resumed>) = 0 [pid 9695] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9694] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9706] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9696] exit_group(0 [pid 9697] <... futex resumed>) = ? [pid 9696] <... exit_group resumed>) = ? [pid 9697] +++ exited with 0 +++ [pid 9706] <... futex resumed>) = ? [pid 9706] +++ exited with 0 +++ [pid 9696] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9696, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./269", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./269", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9701] <... mount resumed>) = 0 [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("./269/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./269/binderfs") = 0 [ 270.603452][ T9701] REISERFS (device loop2): Using r5 hash to sort names [ 270.611236][ T9701] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 270.623317][ T9695] overlayfs: upper fs needs to support d_type. [ 270.623950][ T9701] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 4998] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9701] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9701] chdir("./file0") = 0 [pid 9701] ioctl(4, LOOP_CLR_FD) = 0 [pid 9701] close(4) = 0 [pid 9701] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9701] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9698] <... futex resumed>) = 0 [pid 9694] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9694] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9698] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9701] <... futex resumed>) = 0 [pid 9698] <... futex resumed>) = 1 [pid 9694] <... futex resumed>) = 0 [pid 9701] mkdir("./file1", 000) = 0 [pid 9698] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9701] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9694] <... mmap resumed>) = 0x7f38d9b57000 [pid 9698] <... futex resumed>) = 0 [pid 9701] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9698] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9694] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9698] <... futex resumed>) = 1 [pid 9701] <... futex resumed>) = 0 [pid 9701] mkdir("./bus", 000) = 0 [pid 9698] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9701] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9694] <... mprotect resumed>) = 0 [pid 9698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9701] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9698] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9694] 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 9698] <... futex resumed>) = 1 [pid 9701] <... futex resumed>) = 0 [pid 9698] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9701] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9694] <... clone resumed>, parent_tid=[9707], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9707 [pid 9694] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 270.646096][ T9700] 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 [ 270.659332][ T9695] overlayfs: upper fs does not support tmpfile. [ 270.662670][ T9700] REISERFS (device loop1): checking transaction log (loop1) [ 270.670470][ T9695] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 270.684542][ T9695] overlayfs: failed to resolve './file0': -2 [ 270.700211][ T9701] overlayfs: upper fs needs to support d_type. [pid 9694] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9707 attached [pid 9707] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9707] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9707] 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 9695] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9695] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9695] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9707] <... mount resumed>) = 0 [pid 9707] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9707] chdir(".") = 0 [pid 9707] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9707] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9701] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9701] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9694] <... futex resumed>) = 0 [pid 9694] exit_group(0 [pid 9707] <... futex resumed>) = ? [pid 9701] <... futex resumed>) = 1 [pid 9698] <... futex resumed>) = 0 [pid 9695] <... futex resumed>) = ? [pid 9694] <... exit_group resumed>) = ? [pid 9701] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9707] +++ exited with 0 +++ [pid 9698] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9695] +++ exited with 0 +++ [pid 9694] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9694, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 9701] <... futex resumed>) = 0 [pid 9698] <... futex resumed>) = 1 [pid 9701] mkdir(".", 0777 [pid 5003] umount2("./269", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9701] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9701] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9698] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] openat(AT_FDCWD, "./269", 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("./269/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./269/binderfs") = 0 [ 270.706566][ T9701] overlayfs: upper fs does not support tmpfile. [ 270.713196][ T9700] REISERFS (device loop1): Using r5 hash to sort names [ 270.713456][ T9701] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 270.732861][ T9701] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9701] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 9701] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4998] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9701] <... openat resumed>) = 4 [pid 9700] <... mount resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9701] chdir("." [pid 9700] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 4998] lstat("./269/file0", [pid 9701] <... chdir resumed>) = 0 [pid 9701] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9700] <... openat resumed>) = 3 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9701] <... futex resumed>) = 1 [pid 9700] chdir("./file0" [pid 9698] <... futex resumed>) = 0 [pid 9701] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9700] <... chdir resumed>) = 0 [pid 9698] exit_group(0 [pid 4998] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9701] <... futex resumed>) = ? [pid 9700] ioctl(4, LOOP_CLR_FD [pid 9698] <... exit_group resumed>) = ? [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9701] +++ exited with 0 +++ [pid 9700] <... ioctl resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./269/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9700] close(4 [pid 4998] <... openat resumed>) = 4 [pid 9700] <... close resumed>) = 0 [pid 4998] fstat(4, [pid 9700] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9700] <... futex resumed>) = 1 [pid 9699] <... futex resumed>) = 0 [pid 4998] getdents64(4, [pid 9700] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9699] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9698] +++ exited with 0 +++ [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9699] <... futex resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9698, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 4998] getdents64(4, [pid 9700] mkdir("./file1", 000 [pid 9699] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9700] <... mkdir resumed>) = 0 [pid 4998] close(4 [pid 9700] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./270", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 9700] <... futex resumed>) = 1 [pid 9699] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] rmdir("./269/file0" [pid 9700] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9699] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] openat(AT_FDCWD, "./270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... rmdir resumed>) = 0 [pid 9700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9699] <... futex resumed>) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] getdents64(3, [pid 9700] mkdir("./bus", 000 [pid 9699] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] fstat(3, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9700] <... mkdir resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] close(3 [pid 9700] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(3, [pid 4998] <... close resumed>) = 0 [pid 9700] <... futex resumed>) = 1 [pid 9699] <... futex resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] rmdir("./269" [pid 9700] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9699] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./270/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... rmdir resumed>) = 0 [pid 9700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9699] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] mkdir("./270", 0777 [pid 9700] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9699] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] lstat("./270/binderfs", [pid 4998] <... mkdir resumed>) = 0 [ 270.757222][ T9700] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 270.770053][ T9700] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5000] unlink("./270/binderfs" [pid 4998] <... openat resumed>) = 3 [pid 5000] <... unlink resumed>) = 0 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5000] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... ioctl resumed>) = -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) = 9708 ./strace-static-x86_64: Process 9708 attached [pid 9708] set_robust_list(0x555556b565e0, 24) = 0 [pid 9708] chdir("./270") = 0 [pid 9708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9708] setpgid(0, 0) = 0 [pid 9708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9708] write(3, "1000", 4) = 4 [pid 9708] close(3) = 0 [pid 9708] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9708] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9708] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9708] 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 9709 attached , parent_tid=[9709], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9709 [pid 9708] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9699] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9708] <... futex resumed>) = 0 [pid 9699] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9708] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9699] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9699] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9699] 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=[9710], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9710 [pid 9699] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9699] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9709] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9709] memfd_create("syzkaller", 0) = 3 [pid 9709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9710 attached [pid 9700] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9700] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9700] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9710] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9710] mkdir(".", 0777) = -1 EEXIST (File exists) [ 270.801546][ T9700] overlayfs: upper fs needs to support d_type. [ 270.812418][ T9700] overlayfs: upper fs does not support tmpfile. [ 270.825388][ T9700] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 270.838342][ T9700] overlayfs: failed to resolve './file0': -2 [pid 9710] 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 9710] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9710] chdir(".") = 0 [pid 9710] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9699] <... futex resumed>) = 0 [pid 9699] exit_group(0 [pid 9700] <... futex resumed>) = ? [pid 9699] <... exit_group resumed>) = ? [pid 5003] <... umount2 resumed>) = 0 [pid 9710] +++ exited with 0 +++ [pid 9700] +++ exited with 0 +++ [pid 9699] +++ exited with 0 +++ [pid 5003] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9699, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4999] umount2("./269", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./269", 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("./269/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./269/binderfs") = 0 [pid 4999] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./269/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./269/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("./269/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./269" [pid 5000] <... umount2 resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] mkdir("./270", 0777) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... openat resumed>) = 3 [pid 5000] lstat("./270/file0", [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9711 [pid 5000] openat(AT_FDCWD, "./270/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("./270/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./270") = 0 [pid 5000] mkdir("./271", 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) = 9712 ./strace-static-x86_64: Process 9711 attached [pid 9711] set_robust_list(0x555556b565e0, 24) = 0 [pid 9711] chdir("./270") = 0 ./strace-static-x86_64: Process 9712 attached [pid 9712] set_robust_list(0x555556b565e0, 24 [pid 9711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9712] <... set_robust_list resumed>) = 0 [pid 9711] <... prctl resumed>) = 0 [pid 9711] setpgid(0, 0 [pid 9712] chdir("./271") = 0 [pid 9712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9711] <... setpgid resumed>) = 0 [pid 9711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9709] 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 9711] <... openat resumed>) = 3 [pid 9711] write(3, "1000", 4) = 4 [pid 9711] close(3 [pid 9712] setpgid(0, 0 [pid 9711] <... close resumed>) = 0 [pid 9712] <... setpgid resumed>) = 0 [pid 9712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9711] symlink("/dev/binderfs", "./binderfs" [pid 9712] <... openat resumed>) = 3 [pid 9711] <... symlink resumed>) = 0 [pid 9712] write(3, "1000", 4 [pid 9711] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = 0 [pid 9712] <... write resumed>) = 4 [pid 9712] close(3 [pid 9711] <... futex resumed>) = 0 [pid 4999] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9712] <... close resumed>) = 0 [pid 9712] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9712] <... symlink resumed>) = 0 [pid 9711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] lstat("./269/file0", [pid 9712] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9711] <... mmap resumed>) = 0x7f38e1b78000 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9712] <... futex resumed>) = 0 [pid 9712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9711] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4999] umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9712] <... mmap resumed>) = 0x7f38e1b78000 [pid 9712] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9711] <... mprotect resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9712] <... mprotect resumed>) = 0 [pid 9712] 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 9711] 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] openat(AT_FDCWD, "./269/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9712] <... clone resumed>, parent_tid=[9713], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9713 [pid 9711] <... clone resumed>, parent_tid=[9714], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9714 [pid 4999] fstat(4, [pid 9712] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9711] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9712] <... futex resumed>) = 0 [pid 9711] <... futex resumed>) = 0 [pid 4999] getdents64(4, [pid 9712] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9711] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [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("./269/file0") = 0 [pid 4999] getdents64(3, ./strace-static-x86_64: Process 9714 attached 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9714] set_robust_list(0x7f38e1b989e0, 24 [pid 4999] close(3 [pid 9714] <... set_robust_list resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 9714] memfd_create("syzkaller", 0 [pid 4999] rmdir("./269" [pid 9714] <... memfd_create resumed>) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 9714] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] mkdir("./270", 0777 [pid 9714] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 9713 attached [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9713] set_robust_list(0x7f38e1b989e0, 24 [pid 4999] <... openat resumed>) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9713] <... set_robust_list resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] close(3 [pid 9713] memfd_create("syzkaller", 0 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9715 [pid 9713] <... memfd_create resumed>) = 3 [pid 9713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9709] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 9715 attached [pid 9709] munmap(0x7f38d9778000, 4194304 [pid 9715] set_robust_list(0x555556b565e0, 24) = 0 [pid 9715] chdir("./270") = 0 [pid 9715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9715] setpgid(0, 0) = 0 [pid 9715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9709] <... munmap resumed>) = 0 [pid 9715] <... openat resumed>) = 3 [pid 9715] write(3, "1000", 4) = 4 [pid 9709] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9715] close(3) = 0 [pid 9715] symlink("/dev/binderfs", "./binderfs" [pid 9709] <... openat resumed>) = 4 [pid 9715] <... symlink resumed>) = 0 [pid 9709] ioctl(4, LOOP_SET_FD, 3 [pid 9715] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9715] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9715] 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 9714] 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 9715] <... clone resumed>, parent_tid=[9716], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9716 [pid 9715] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9715] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9716 attached [pid 9713] 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 9709] <... ioctl resumed>) = 0 [pid 9709] close(3 [pid 9716] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9709] <... close resumed>) = 0 [pid 9716] memfd_create("syzkaller", 0 [pid 9709] mkdir("./file0", 0777) = 0 [pid 9716] <... memfd_create resumed>) = 3 [pid 9716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9709] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9716] <... mmap resumed>) = 0x7f38d9778000 [pid 9713] <... write resumed>) = 4194304 [pid 9713] munmap(0x7f38d9778000, 4194304) = 0 [pid 9713] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 271.029423][ T9709] loop0: detected capacity change from 0 to 8192 [ 271.066644][ T9709] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9713] ioctl(4, LOOP_SET_FD, 3 [pid 9716] 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 9713] <... ioctl resumed>) = 0 [pid 9713] close(3) = 0 [pid 9713] mkdir("./file0", 0777) = 0 [pid 9713] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9714] <... write resumed>) = 4194304 [pid 9714] munmap(0x7f38d9778000, 4194304) = 0 [pid 9714] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 271.096928][ T9713] loop2: detected capacity change from 0 to 8192 [ 271.102535][ T9709] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 271.114200][ T9713] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 271.126137][ T9709] REISERFS (device loop0): using ordered data mode [ 271.130449][ T9714] loop5: detected capacity change from 0 to 8192 [ 271.133934][ T9709] reiserfs: using flush barriers [pid 9714] ioctl(4, LOOP_SET_FD, 3 [pid 9716] <... write resumed>) = 4194304 [pid 9714] <... ioctl resumed>) = 0 [pid 9716] munmap(0x7f38d9778000, 4194304 [ 271.147150][ T9713] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 271.147402][ T9709] 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 [ 271.161243][ T9713] REISERFS (device loop2): using ordered data mode [ 271.173405][ T9709] REISERFS (device loop0): checking transaction log (loop0) [ 271.180123][ T9713] reiserfs: using flush barriers [pid 9714] close(3 [pid 9716] <... munmap resumed>) = 0 [pid 9714] <... close resumed>) = 0 [pid 9714] mkdir("./file0", 0777) = 0 [pid 9716] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9714] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9716] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9716] close(3) = 0 [pid 9716] mkdir("./file0", 0777) = 0 [ 271.187888][ T9709] REISERFS (device loop0): Using r5 hash to sort names [ 271.197478][ T9716] loop1: detected capacity change from 0 to 8192 [ 271.199703][ T9709] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 271.208983][ T9713] 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 [ 271.235445][ T9709] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9716] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9709] <... mount resumed>) = 0 [ 271.235608][ T9714] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 271.245294][ T9713] REISERFS (device loop2): checking transaction log (loop2) [ 271.257798][ T9716] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 271.265633][ T9713] REISERFS (device loop2): Using r5 hash to sort names [ 271.278955][ T9716] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9709] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9713] <... mount resumed>) = 0 [pid 9709] chdir("./file0" [pid 9713] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9709] <... chdir resumed>) = 0 [pid 9713] <... openat resumed>) = 3 [pid 9709] ioctl(4, LOOP_CLR_FD [pid 9713] chdir("./file0") = 0 [pid 9713] ioctl(4, LOOP_CLR_FD) = 0 [ 271.285229][ T9713] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 271.295599][ T9714] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 271.307135][ T9713] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 271.317806][ T9716] REISERFS (device loop1): using ordered data mode [ 271.325949][ T9714] REISERFS (device loop5): using ordered data mode [ 271.333480][ T9716] reiserfs: using flush barriers [pid 9713] close(4) = 0 [pid 9709] <... ioctl resumed>) = 0 [pid 9713] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9713] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9712] <... futex resumed>) = 0 [pid 9709] close(4 [pid 9712] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] <... close resumed>) = 0 [pid 9713] <... futex resumed>) = 0 [pid 9712] <... futex resumed>) = 1 [pid 9709] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9713] mkdir("./file1", 000) = 0 [pid 9713] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9713] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9712] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9709] <... futex resumed>) = 1 [pid 9708] <... futex resumed>) = 0 [pid 9712] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9709] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9708] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9712] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9708] <... futex resumed>) = 0 [pid 9712] <... futex resumed>) = 1 [pid 9709] mkdir("./file1", 000 [pid 9708] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9712] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9709] <... mkdir resumed>) = 0 [pid 9709] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9708] <... futex resumed>) = 0 [pid 9709] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9708] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9708] <... futex resumed>) = 0 [pid 9709] mkdir("./bus", 000 [pid 9708] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9709] <... mkdir resumed>) = 0 [pid 9709] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9713] <... futex resumed>) = 0 [pid 9709] <... futex resumed>) = 1 [pid 9708] <... futex resumed>) = 0 [pid 9713] mkdir("./bus", 000) = 0 [ 271.344097][ T9714] reiserfs: using flush barriers [ 271.350686][ T9714] 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 [ 271.367766][ T9714] REISERFS (device loop5): checking transaction log (loop5) [ 271.373259][ T9716] 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 9713] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9713] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9712] <... futex resumed>) = 0 [pid 9709] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9708] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9714] <... mount resumed>) = 0 [pid 9712] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9708] <... futex resumed>) = 0 [pid 9712] <... futex resumed>) = 1 [pid 9709] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9708] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9712] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9714] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9714] chdir("./file0") = 0 [pid 9714] ioctl(4, LOOP_CLR_FD) = 0 [pid 9714] close(4) = 0 [pid 9714] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9714] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9713] <... futex resumed>) = 0 [ 271.392882][ T9716] REISERFS (device loop1): checking transaction log (loop1) [ 271.400443][ T9714] REISERFS (device loop5): Using r5 hash to sort names [ 271.408255][ T9714] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 271.408719][ T9716] REISERFS (device loop1): Using r5 hash to sort names [ 271.421015][ T9714] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9713] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9711] <... futex resumed>) = 0 [pid 9711] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9716] <... mount resumed>) = 0 [pid 9714] <... futex resumed>) = 0 [pid 9711] <... futex resumed>) = 1 [pid 9714] mkdir("./file1", 000) = 0 [pid 9714] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9708] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9714] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9712] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9708] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9712] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 9708] <... futex resumed>) = 0 [pid 9712] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9712] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9708] <... mmap resumed>) = 0x7f38d9b57000 [pid 9712] <... futex resumed>) = 0 [pid 9708] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9708] <... mprotect resumed>) = 0 [pid 9712] <... mmap resumed>) = 0x7f38d9b57000 [pid 9708] 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 9712] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9708] <... clone resumed>, parent_tid=[9721], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9721 [pid 9712] 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 9708] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9711] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9708] <... futex resumed>) = 0 [pid 9716] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9712] <... clone resumed>, parent_tid=[9722], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9722 [pid 9711] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9708] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9716] <... openat resumed>) = 3 [pid 9712] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9711] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9716] chdir("./file0" [pid 9714] <... futex resumed>) = 0 [pid 9712] <... futex resumed>) = 0 [pid 9711] <... futex resumed>) = 1 [pid 9716] <... chdir resumed>) = 0 [pid 9714] mkdir("./bus", 000 [pid 9712] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9711] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9716] ioctl(4, LOOP_CLR_FD [pid 9714] <... mkdir resumed>) = 0 [pid 9716] <... ioctl resumed>) = 0 [pid 9714] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9716] close(4 [pid 9714] <... futex resumed>) = 1 [pid 9711] <... futex resumed>) = 0 [ 271.428995][ T9716] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 271.445231][ T9709] overlayfs: upper fs needs to support d_type. [ 271.457455][ T9713] overlayfs: upper fs needs to support d_type. [ 271.463635][ T9713] overlayfs: upper fs does not support tmpfile. [ 271.470959][ T9716] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 271.471871][ T9709] overlayfs: upper fs does not support tmpfile. [ 271.481026][ T9713] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9714] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9721 attached [pid 9721] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9721] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9721] 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 9716] <... close resumed>) = 0 [pid 9721] <... mount resumed>) = 0 [pid 9716] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9711] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9716] <... futex resumed>) = 1 [pid 9715] <... futex resumed>) = 0 [pid 9714] <... futex resumed>) = 0 [pid 9711] <... futex resumed>) = 1 [pid 9716] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9715] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9714] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9711] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9722 attached [pid 9716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9715] <... futex resumed>) = 0 [pid 9721] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9721] chdir(".") = 0 [pid 9721] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9708] <... futex resumed>) = 0 [pid 9721] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9722] set_robust_list(0x7f38d9b779e0, 24 [pid 9716] mkdir("./file1", 000 [pid 9715] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9713] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 271.502480][ T9713] overlayfs: failed to resolve './file0': -2 [ 271.522859][ T9714] overlayfs: upper fs needs to support d_type. [ 271.535225][ T9714] overlayfs: upper fs does not support tmpfile. [ 271.539179][ T9709] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9722] <... set_robust_list resumed>) = 0 [pid 9716] <... mkdir resumed>) = 0 [pid 9713] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9722] mkdir(".", 0777 [pid 9716] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9713] <... futex resumed>) = 0 [pid 9722] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9716] <... futex resumed>) = 1 [pid 9715] <... futex resumed>) = 0 [pid 9713] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9722] 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 9716] mkdir("./bus", 000 [pid 9715] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9716] <... mkdir resumed>) = 0 [pid 9715] <... futex resumed>) = 0 [pid 9716] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9715] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9716] <... futex resumed>) = 0 [pid 9715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9716] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9715] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9715] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9722] <... mount resumed>) = 0 [pid 9722] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9722] chdir(".") = 0 [pid 9722] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9712] <... futex resumed>) = 0 [pid 9722] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9712] exit_group(0 [pid 9722] <... futex resumed>) = ? [pid 9712] <... exit_group resumed>) = ? [pid 9722] +++ exited with 0 +++ [pid 9713] <... futex resumed>) = ? [pid 9711] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9713] +++ exited with 0 +++ [pid 9712] +++ exited with 0 +++ [pid 9711] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9711] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9711] 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=[9723], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9723 [pid 9711] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9711] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9723 attached [pid 9723] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9723] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9723] 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 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9712, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./271", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./271", 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("./271/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./271/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./271/binderfs") = 0 [pid 5000] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9723] <... mount resumed>) = 0 [pid 9723] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9723] chdir(".") = 0 [pid 9723] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9711] <... futex resumed>) = 0 [pid 9723] <... futex resumed>) = 1 [pid 9723] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9709] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9714] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9714] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9709] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9714] <... futex resumed>) = 0 [pid 9709] <... futex resumed>) = 0 [pid 9711] exit_group(0 [pid 9708] exit_group(0 [pid 9723] <... futex resumed>) = ? [pid 9721] <... futex resumed>) = ? [pid 9711] <... exit_group resumed>) = ? [pid 9708] <... exit_group resumed>) = ? [pid 9723] +++ exited with 0 +++ [pid 9721] +++ exited with 0 +++ [pid 9709] +++ exited with 0 +++ [pid 9708] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9708, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4998] umount2("./270", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9714] +++ exited with 0 +++ [pid 9711] +++ exited with 0 +++ [pid 4998] fstat(3, [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9711, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... restart_syscall resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./270", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./270/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] openat(AT_FDCWD, "./270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... openat resumed>) = 3 [pid 4998] lstat("./270/binderfs", [pid 5003] fstat(3, [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] unlink("./270/binderfs" [pid 5003] getdents64(3, [pid 4998] <... unlink resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./270/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./270/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./270/binderfs") = 0 [pid 5003] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9716] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9716] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9715] <... futex resumed>) = 0 [pid 9715] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9715] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9716] <... futex resumed>) = 1 [pid 9716] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9716] 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 [ 271.543739][ T9714] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 271.549617][ T9709] overlayfs: failed to resolve './file0': -2 [ 271.558032][ T9714] overlayfs: failed to resolve './file0': -2 [ 271.568720][ T9716] overlayfs: upper fs needs to support d_type. [ 271.575543][ T9716] overlayfs: upper fs does not support tmpfile. [ 271.583465][ T9716] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 271.592506][ T9716] overlayfs: failed to resolve './file0': -2 [pid 9716] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9716] chdir(".") = 0 [pid 9716] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9715] <... futex resumed>) = 0 [pid 9715] exit_group(0) = ? [pid 9716] <... futex resumed>) = ? [pid 9716] +++ exited with 0 +++ [pid 9715] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9715, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./270", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./270", 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("./270/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./270/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./270/binderfs") = 0 [pid 4999] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5000] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./271/file0", [pid 5003] lstat("./270/file0", [pid 5000] <... 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 5000] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./271/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] openat(AT_FDCWD, "./270/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] <... openat resumed>) = 4 [pid 5003] fstat(4, [pid 5000] fstat(4, [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(4, [pid 5000] getdents64(4, [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 5000] close(4) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] rmdir("./271/file0" [pid 5003] rmdir("./270/file0" [pid 5000] <... rmdir resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 5003] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 5003] close(3) = 0 [pid 5000] <... close resumed>) = 0 [pid 5003] rmdir("./270" [pid 5000] rmdir("./271" [pid 5003] <... rmdir resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5003] mkdir("./271", 0777 [pid 5000] mkdir("./272", 0777 [pid 5003] <... mkdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] <... openat resumed>) = 3 [pid 5000] <... openat resumed>) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] close(3 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... close resumed>) = 0 [pid 5000] close(3 [pid 4998] <... umount2 resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... close resumed>) = 0 [pid 4998] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./270/file0", [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9725 [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9724 [pid 4998] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./270/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("./270/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 ./strace-static-x86_64: Process 9725 attached [pid 4998] rmdir("./270" [pid 9725] set_robust_list(0x555556b565e0, 24 [pid 4998] <... rmdir resumed>) = 0 [pid 9725] <... set_robust_list resumed>) = 0 [pid 4998] mkdir("./271", 0777 [pid 9725] chdir("./272" [pid 4998] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9725] <... chdir resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9725] setpgid(0, 0 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9725] <... setpgid resumed>) = 0 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 9725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] <... close resumed>) = 0 [pid 9725] write(3, "1000", 4 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9725] <... write resumed>) = 4 [pid 9725] close(3) = 0 [pid 9725] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9726 [pid 9725] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 ./strace-static-x86_64: Process 9724 attached [pid 9725] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9725] 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=[9727], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9727 [pid 9724] set_robust_list(0x555556b565e0, 24./strace-static-x86_64: Process 9726 attached [pid 9725] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9725] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9724] <... set_robust_list resumed>) = 0 [pid 9726] set_robust_list(0x555556b565e0, 24 [pid 9724] chdir("./271" [pid 9726] <... set_robust_list resumed>) = 0 [pid 9724] <... chdir resumed>) = 0 [pid 9726] chdir("./271" [pid 9724] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 9727 attached [pid 9726] <... chdir resumed>) = 0 [pid 9724] <... prctl resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9727] set_robust_list(0x7f38e1b989e0, 24 [pid 9726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9724] setpgid(0, 0 [pid 4999] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9727] <... set_robust_list resumed>) = 0 [pid 9726] <... prctl resumed>) = 0 [pid 9724] <... setpgid resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9727] memfd_create("syzkaller", 0 [pid 9726] setpgid(0, 0 [pid 9724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] lstat("./270/file0", [pid 9727] <... memfd_create resumed>) = 3 [pid 9726] <... setpgid resumed>) = 0 [pid 9724] <... openat resumed>) = 3 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9724] write(3, "1000", 4 [pid 4999] umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9726] <... openat resumed>) = 3 [pid 9727] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9726] write(3, "1000", 4 [pid 9724] <... write resumed>) = 4 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9727] <... mmap resumed>) = 0x7f38d9778000 [pid 9726] <... write resumed>) = 4 [pid 9724] close(3 [pid 4999] openat(AT_FDCWD, "./270/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9726] close(3 [pid 9724] <... close resumed>) = 0 [pid 9726] <... close resumed>) = 0 [pid 9724] symlink("/dev/binderfs", "./binderfs" [pid 9726] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... openat resumed>) = 4 [pid 9724] <... symlink resumed>) = 0 [pid 9726] <... symlink resumed>) = 0 [pid 9724] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] fstat(4, [pid 9726] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] <... futex resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9726] <... futex resumed>) = 0 [pid 9724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] getdents64(4, [pid 9726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9724] <... mmap resumed>) = 0x7f38e1b78000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9726] <... mmap resumed>) = 0x7f38e1b78000 [pid 9724] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4999] getdents64(4, [pid 9726] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9724] <... mprotect resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9726] <... mprotect resumed>) = 0 [pid 9724] 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] close(4 [pid 9726] 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] <... close resumed>) = 0 [pid 9724] <... clone resumed>, parent_tid=[9728], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9728 [pid 4999] rmdir("./270/file0" [pid 9726] <... clone resumed>, parent_tid=[9729], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9729 [pid 9724] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 9728 attached [pid 9726] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] <... futex resumed>) = 0 [pid 4999] getdents64(3, [pid 9726] <... futex resumed>) = 0 [pid 9724] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9728] set_robust_list(0x7f38e1b989e0, 24 [pid 9726] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] close(3 [pid 9728] <... set_robust_list resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./270" [pid 9728] memfd_create("syzkaller", 0) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 9728] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] mkdir("./271", 0777 [pid 9728] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 9729 attached ) = -1 ENXIO (No such device or address) [pid 9729] set_robust_list(0x7f38e1b989e0, 24 [pid 4999] close(3 [pid 9729] <... set_robust_list resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 9729] memfd_create("syzkaller", 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9729] <... memfd_create resumed>) = 3 [pid 9729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9730 [pid 9729] <... mmap resumed>) = 0x7f38d9778000 [pid 9727] 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 9730 attached [pid 9729] 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 9730] set_robust_list(0x555556b565e0, 24) = 0 [pid 9730] chdir("./271") = 0 [pid 9730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9730] setpgid(0, 0) = 0 [pid 9730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9730] write(3, "1000", 4) = 4 [pid 9730] close(3) = 0 [pid 9730] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9730] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9730] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9730] 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=[9731], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9731 [pid 9730] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9730] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9728] 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 9731 attached [pid 9731] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9731] memfd_create("syzkaller", 0) = 3 [pid 9731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9727] <... write resumed>) = 4194304 [pid 9727] munmap(0x7f38d9778000, 4194304) = 0 [pid 9727] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9727] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9727] close(3) = 0 [pid 9727] mkdir("./file0", 0777) = 0 [pid 9727] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9728] <... write resumed>) = 4194304 [pid 9729] <... write resumed>) = 4194304 [pid 9729] munmap(0x7f38d9778000, 4194304) = 0 [pid 9729] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9728] munmap(0x7f38d9778000, 4194304 [pid 9729] <... openat resumed>) = 4 [pid 9729] ioctl(4, LOOP_SET_FD, 3 [pid 9728] <... munmap resumed>) = 0 [ 271.844129][ T9727] loop2: detected capacity change from 0 to 8192 [ 271.864746][ T9727] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 271.877911][ T9727] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 271.881252][ T9729] loop0: detected capacity change from 0 to 8192 [pid 9731] 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 9728] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9728] ioctl(4, LOOP_SET_FD, 3 [pid 9729] <... ioctl resumed>) = 0 [pid 9729] close(3) = 0 [pid 9729] mkdir("./file0", 0777) = 0 [pid 9729] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9728] <... ioctl resumed>) = 0 [pid 9728] close(3) = 0 [pid 9731] <... write resumed>) = 4194304 [pid 9731] munmap(0x7f38d9778000, 4194304) = 0 [ 271.888650][ T9727] REISERFS (device loop2): using ordered data mode [ 271.900278][ T9727] reiserfs: using flush barriers [ 271.906767][ T9728] loop5: detected capacity change from 0 to 8192 [ 271.913279][ T9727] 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 [ 271.930389][ T9727] REISERFS (device loop2): checking transaction log (loop2) [pid 9728] mkdir("./file0", 0777 [pid 9731] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9731] ioctl(4, LOOP_SET_FD, 3 [pid 9728] <... mkdir resumed>) = 0 [ 271.940059][ T9729] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 271.940504][ T9727] REISERFS (device loop2): Using r5 hash to sort names [ 271.956370][ T9731] loop1: detected capacity change from 0 to 8192 [ 271.960731][ T9727] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 271.968201][ T9729] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9728] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9731] <... ioctl resumed>) = 0 [pid 9731] close(3) = 0 [pid 9731] mkdir("./file0", 0777) = 0 [ 271.979321][ T9727] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 271.988364][ T9729] REISERFS (device loop0): using ordered data mode [ 272.002738][ T9731] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 272.004182][ T9729] reiserfs: using flush barriers [ 272.018100][ T9728] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 272.023104][ T9731] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 9731] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9727] <... mount resumed>) = 0 [ 272.036106][ T9728] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 272.044138][ T9729] 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 [ 272.070859][ T9728] REISERFS (device loop5): using ordered data mode [ 272.070876][ T9728] reiserfs: using flush barriers [pid 9727] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9727] chdir("./file0") = 0 [pid 9727] ioctl(4, LOOP_CLR_FD) = 0 [pid 9727] close(4) = 0 [ 272.071914][ T9728] 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 [ 272.078575][ T9731] REISERFS (device loop1): using ordered data mode [ 272.082870][ T9728] REISERFS (device loop5): checking transaction log (loop5) [ 272.099638][ T9729] REISERFS (device loop0): checking transaction log (loop0) [ 272.121126][ T9731] reiserfs: using flush barriers [ 272.121783][ T9729] REISERFS (device loop0): Using r5 hash to sort names [ 272.127800][ T9728] REISERFS (device loop5): Using r5 hash to sort names [pid 9727] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9725] <... futex resumed>) = 0 [pid 9725] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9725] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9727] mkdir("./file1", 000 [pid 9729] <... mount resumed>) = 0 [pid 9729] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9729] chdir("./file0") = 0 [pid 9729] ioctl(4, LOOP_CLR_FD) = 0 [ 272.140352][ T9731] 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 [ 272.152108][ T9729] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 272.157001][ T9728] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 272.171299][ T9729] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9729] close(4 [pid 9727] <... mkdir resumed>) = 0 [pid 9727] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9725] <... futex resumed>) = 0 [pid 9725] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9725] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9727] mkdir("./bus", 000) = 0 [pid 9727] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9727] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9729] <... close resumed>) = 0 [pid 9728] <... mount resumed>) = 0 [pid 9725] <... futex resumed>) = 0 [pid 9725] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9725] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9727] <... futex resumed>) = 0 [pid 9727] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9729] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9729] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9728] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9728] chdir("./file0") = 0 [pid 9728] ioctl(4, LOOP_CLR_FD) = 0 [pid 9728] close(4 [pid 9726] <... futex resumed>) = 0 [pid 9728] <... close resumed>) = 0 [pid 9728] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 272.182799][ T9731] REISERFS (device loop1): checking transaction log (loop1) [ 272.199283][ T9728] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 272.210486][ T9731] REISERFS (device loop1): Using r5 hash to sort names [ 272.218775][ T9727] overlayfs: upper fs needs to support d_type. [ 272.225424][ T9727] overlayfs: upper fs does not support tmpfile. [ 272.226813][ T9731] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9728] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9726] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] <... futex resumed>) = 0 [pid 9726] <... futex resumed>) = 1 [pid 9724] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9726] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9724] <... futex resumed>) = 1 [pid 9724] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9729] <... futex resumed>) = 0 [pid 9728] <... futex resumed>) = 0 [pid 9729] mkdir("./file1", 000 [pid 9728] mkdir("./file1", 000 [pid 9729] <... mkdir resumed>) = 0 [pid 9728] <... mkdir resumed>) = 0 [pid 9729] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9728] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9729] <... futex resumed>) = 1 [pid 9728] <... futex resumed>) = 1 [pid 9729] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9728] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9726] <... futex resumed>) = 0 [pid 9724] <... futex resumed>) = 0 [pid 9726] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9726] <... futex resumed>) = 1 [pid 9724] <... futex resumed>) = 1 [pid 9726] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9724] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9729] <... futex resumed>) = 0 [pid 9728] <... futex resumed>) = 0 [pid 9729] mkdir("./bus", 000 [pid 9728] mkdir("./bus", 000 [pid 9725] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9729] <... mkdir resumed>) = 0 [pid 9728] <... mkdir resumed>) = 0 [pid 9725] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9729] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9728] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9725] <... futex resumed>) = 0 [pid 9729] <... futex resumed>) = 1 [pid 9728] <... futex resumed>) = 1 [pid 9725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9729] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9728] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9725] <... mmap resumed>) = 0x7f38d9b57000 [pid 9725] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9725] 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=[9736], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9736 [pid 9725] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9725] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9726] <... futex resumed>) = 0 [pid 9724] <... futex resumed>) = 0 [pid 9726] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9729] <... futex resumed>) = 0 [pid 9728] <... futex resumed>) = 0 [pid 9727] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9726] <... futex resumed>) = 1 [pid 9724] <... futex resumed>) = 1 [pid 9729] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9728] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9727] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9726] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9724] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9736 attached [pid 9731] <... mount resumed>) = 0 [pid 9727] <... futex resumed>) = 0 [pid 9736] set_robust_list(0x7f38d9b779e0, 24 [pid 9731] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9727] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9736] <... set_robust_list resumed>) = 0 [pid 9731] <... openat resumed>) = 3 [pid 9736] mkdir(".", 0777 [pid 9731] chdir("./file0" [pid 9736] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9731] <... chdir resumed>) = 0 [pid 9736] 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 9731] ioctl(4, LOOP_CLR_FD [pid 9736] <... mount resumed>) = 0 [pid 9731] <... ioctl resumed>) = 0 [pid 9736] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9731] close(4 [pid 9736] <... openat resumed>) = 4 [pid 9731] <... close resumed>) = 0 [pid 9736] chdir("." [pid 9731] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9736] <... chdir resumed>) = 0 [pid 9731] <... futex resumed>) = 1 [pid 9736] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9731] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9736] <... futex resumed>) = 1 [ 272.239159][ T9727] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 272.253132][ T9727] overlayfs: failed to resolve './file0': -2 [ 272.260656][ T9731] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 272.272642][ T9729] overlayfs: upper fs needs to support d_type. [ 272.280215][ T9728] overlayfs: upper fs needs to support d_type. [ 272.289026][ T9728] overlayfs: upper fs does not support tmpfile. [pid 9736] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9730] <... futex resumed>) = 0 [pid 9725] <... futex resumed>) = 0 [pid 9730] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9725] exit_group(0 [pid 9731] <... futex resumed>) = 0 [pid 9730] <... futex resumed>) = 1 [pid 9725] <... exit_group resumed>) = ? [pid 9731] mkdir("./file1", 000 [pid 9730] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9731] <... mkdir resumed>) = 0 [pid 9731] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9730] <... futex resumed>) = 0 [pid 9731] mkdir("./bus", 000 [pid 9730] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9731] <... mkdir resumed>) = 0 [pid 9730] <... futex resumed>) = 0 [pid 9731] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9730] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9731] <... futex resumed>) = 0 [pid 9730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9731] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9730] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9736] <... futex resumed>) = ? [pid 9730] <... futex resumed>) = 0 [pid 9727] <... futex resumed>) = ? [pid 9736] +++ exited with 0 +++ [pid 9727] +++ exited with 0 +++ [pid 9726] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9725] +++ exited with 0 +++ [pid 9724] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9726] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9726] <... futex resumed>) = 0 [pid 9724] <... futex resumed>) = 0 [pid 9726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9726] <... mmap resumed>) = 0x7f38d9b57000 [pid 9724] <... mmap resumed>) = 0x7f38d9b57000 [pid 9726] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9724] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9726] <... mprotect resumed>) = 0 [pid 9724] <... mprotect resumed>) = 0 [pid 9730] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9726] 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 9724] 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 9726] <... clone resumed>, parent_tid=[9737], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9737 [pid 9724] <... clone resumed>, parent_tid=[9738], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9738 [pid 9726] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9724] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9726] <... futex resumed>) = 0 [pid 9724] <... futex resumed>) = 0 [pid 9726] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9724] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9725, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./272", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 272.294799][ T9729] overlayfs: upper fs does not support tmpfile. [ 272.296668][ T9728] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 272.303419][ T9729] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 272.310482][ T9728] overlayfs: failed to resolve './file0': -2 [ 272.318100][ T9729] overlayfs: failed to resolve './file0': -2 [ 272.327801][ T9731] overlayfs: upper fs needs to support d_type. [pid 5000] openat(AT_FDCWD, "./272", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9738 attached [pid 9738] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9738] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9738] 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 9737 attached [pid 9737] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9737] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9737] 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 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./272/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./272/binderfs", [pid 9729] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9728] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9728] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9729] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9728] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] unlink("./272/binderfs" [pid 9729] <... futex resumed>) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 9729] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9738] <... mount resumed>) = 0 [pid 9737] <... mount resumed>) = 0 [pid 9738] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9737] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9738] <... openat resumed>) = 4 [pid 9737] <... openat resumed>) = 4 [pid 9738] chdir("." [pid 9737] chdir("." [pid 9738] <... chdir resumed>) = 0 [pid 9737] <... chdir resumed>) = 0 [pid 9738] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9737] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9738] <... futex resumed>) = 1 [pid 9737] <... futex resumed>) = 1 [pid 9738] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9737] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9726] <... futex resumed>) = 0 [pid 9724] <... futex resumed>) = 0 [pid 9726] exit_group(0 [pid 9724] exit_group(0 [pid 9738] <... futex resumed>) = ? [pid 9737] <... futex resumed>) = ? [pid 9730] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9729] <... futex resumed>) = ? [pid 9728] <... futex resumed>) = ? [pid 9726] <... exit_group resumed>) = ? [pid 9724] <... exit_group resumed>) = ? [pid 9738] +++ exited with 0 +++ [pid 9737] +++ exited with 0 +++ [pid 9730] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9728] +++ exited with 0 +++ [pid 9730] <... futex resumed>) = 0 [pid 9729] +++ exited with 0 +++ [pid 9726] +++ exited with 0 +++ [pid 9724] +++ exited with 0 +++ [pid 9730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9730] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9724, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9726, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 9730] <... mprotect resumed>) = 0 [pid 5003] umount2("./271", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./271", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9730] 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 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./271", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] openat(AT_FDCWD, "./271", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9730] <... clone resumed>, parent_tid=[9739], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9739 [pid 5003] <... openat resumed>) = 3 ./strace-static-x86_64: Process 9739 attached [pid 9730] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] fstat(3, [pid 5000] <... umount2 resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9739] set_robust_list(0x7f38d9b779e0, 24 [pid 9730] <... futex resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] fstat(3, [pid 5000] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9739] <... set_robust_list resumed>) = 0 [pid 9730] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] getdents64(3, [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9739] mkdir(".", 0777 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] getdents64(3, [pid 9739] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5003] umount2("./271/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./272/file0", [pid 9739] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] lstat("./271/binderfs", [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./271/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] unlink("./271/binderfs" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 272.345273][ T9731] overlayfs: upper fs does not support tmpfile. [ 272.352807][ T9731] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 272.362216][ T9731] overlayfs: failed to resolve './file0': -2 [pid 5000] openat(AT_FDCWD, "./272/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] lstat("./271/binderfs", [pid 9731] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9739] <... mount resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9739] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9731] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] fstat(4, [pid 4998] unlink("./271/binderfs" [pid 9739] <... openat resumed>) = 4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9739] chdir("." [pid 9731] <... futex resumed>) = 0 [pid 5000] getdents64(4, [pid 4998] <... unlink resumed>) = 0 [pid 9739] <... chdir resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9739] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9731] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] getdents64(4, [pid 9739] <... futex resumed>) = 1 [pid 9730] <... futex resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9739] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9730] exit_group(0 [pid 5000] close(4 [pid 9739] <... futex resumed>) = ? [pid 9730] <... exit_group resumed>) = ? [pid 5000] <... close resumed>) = 0 [pid 9739] +++ exited with 0 +++ [pid 5000] rmdir("./272/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./272") = 0 [pid 5000] mkdir("./273", 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 9731] <... futex resumed>) = ? [pid 5000] <... close resumed>) = 0 [pid 9731] +++ exited with 0 +++ [pid 9730] +++ exited with 0 +++ [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9740 [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9730, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 4999] umount2("./271", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./271", 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("./271/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./271/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 9740 attached [pid 5003] <... umount2 resumed>) = 0 [pid 4999] unlink("./271/binderfs" [pid 9740] set_robust_list(0x555556b565e0, 24 [pid 5003] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9740] <... set_robust_list resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9740] chdir("./273" [pid 5003] lstat("./271/file0", [pid 9740] <... chdir resumed>) = 0 [pid 9740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9740] setpgid(0, 0 [pid 5003] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9740] <... setpgid resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] openat(AT_FDCWD, "./271/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9740] <... openat resumed>) = 3 [pid 5003] <... openat resumed>) = 4 [pid 9740] write(3, "1000", 4 [pid 5003] fstat(4, [pid 9740] <... write resumed>) = 4 [pid 9740] close(3 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9740] <... close resumed>) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9740] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9740] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] close(4 [pid 9740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... close resumed>) = 0 [pid 9740] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] rmdir("./271/file0") = 0 [pid 9740] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9740] 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] close(3) = 0 [pid 5003] rmdir("./271" [pid 9740] <... clone resumed>, parent_tid=[9741], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9741 [pid 5003] <... rmdir resumed>) = 0 [pid 9740] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] mkdir("./272", 0777 [pid 9740] <... futex resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 9740] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [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) = 9742 ./strace-static-x86_64: Process 9741 attached [pid 9741] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9741] memfd_create("syzkaller", 0) = 3 [pid 9741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9742 attached [pid 9742] set_robust_list(0x555556b565e0, 24) = 0 [pid 9742] chdir("./272") = 0 [pid 9742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9742] setpgid(0, 0) = 0 [pid 9742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9742] write(3, "1000", 4) = 4 [pid 9742] close(3) = 0 [pid 9742] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9742] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9742] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9742] 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=[9743], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9743 [pid 9742] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... umount2 resumed>) = 0 [pid 9742] <... futex resumed>) = 0 [pid 4998] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9742] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./271/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./271/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9743 attached [pid 4998] getdents64(4, [pid 9743] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9743] memfd_create("syzkaller", 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9743] <... memfd_create resumed>) = 3 [pid 4998] close(4 [pid 9743] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] <... close resumed>) = 0 [pid 9743] <... mmap resumed>) = 0x7f38d9778000 [pid 4998] rmdir("./271/file0") = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 4999] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] rmdir("./271") = 0 [pid 4999] lstat("./271/file0", [pid 4998] mkdir("./272", 0777 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 4999] umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] close(3 [pid 4999] openat(AT_FDCWD, "./271/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9744 [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("./271/file0") = 0 [pid 4999] getdents64(3, ./strace-static-x86_64: Process 9744 attached [pid 9744] set_robust_list(0x555556b565e0, 24) = 0 [pid 9744] chdir("./272" [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9744] <... chdir resumed>) = 0 [pid 9744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9744] setpgid(0, 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./271" [pid 9744] <... setpgid resumed>) = 0 [pid 9744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] <... rmdir resumed>) = 0 [pid 9744] write(3, "1000", 4 [pid 4999] mkdir("./272", 0777 [pid 9744] <... write resumed>) = 4 [pid 9744] close(3) = 0 [pid 9744] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9744] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... openat resumed>) = 3 [pid 9744] <... futex resumed>) = 0 [pid 9744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9744] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9744] 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] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9741] 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] close(3 [pid 9744] <... clone resumed>, parent_tid=[9745], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9745 [pid 4999] <... close resumed>) = 0 ./strace-static-x86_64: Process 9745 attached [pid 9744] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9743] 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 9744] <... futex resumed>) = 0 [pid 9744] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9745] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9746 [pid 9745] memfd_create("syzkaller", 0) = 3 [pid 9745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9746 attached [pid 9746] set_robust_list(0x555556b565e0, 24) = 0 [pid 9746] chdir("./272") = 0 [pid 9746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9746] setpgid(0, 0) = 0 [pid 9746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9746] write(3, "1000", 4) = 4 [pid 9746] close(3) = 0 [pid 9746] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9746] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9746] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9746] 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=[9747], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9747 [pid 9746] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9746] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9747 attached [pid 9747] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9747] memfd_create("syzkaller", 0) = 3 [pid 9747] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9741] <... write resumed>) = 4194304 [pid 9741] munmap(0x7f38d9778000, 4194304 [pid 9745] 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 9741] <... munmap resumed>) = 0 [pid 9741] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9741] ioctl(4, LOOP_SET_FD, 3 [pid 9743] <... write resumed>) = 4194304 [pid 9743] munmap(0x7f38d9778000, 4194304) = 0 [pid 9743] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9743] ioctl(4, LOOP_SET_FD, 3 [pid 9741] <... ioctl resumed>) = 0 [pid 9741] close(3) = 0 [pid 9741] mkdir("./file0", 0777) = 0 [pid 9741] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9747] 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 9745] <... write resumed>) = 4194304 [pid 9743] <... ioctl resumed>) = 0 [pid 9743] close(3) = 0 [pid 9743] mkdir("./file0", 0777 [pid 9747] <... write resumed>) = 4194304 [pid 9745] munmap(0x7f38d9778000, 4194304 [pid 9743] <... mkdir resumed>) = 0 [pid 9745] <... munmap resumed>) = 0 [pid 9743] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 272.627843][ T9741] loop2: detected capacity change from 0 to 8192 [ 272.644472][ T9743] loop5: detected capacity change from 0 to 8192 [ 272.656692][ T9741] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9745] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9747] munmap(0x7f38d9778000, 4194304) = 0 [pid 9747] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9747] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9747] close(3) = 0 [pid 9747] mkdir("./file0", 0777) = 0 [pid 9747] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9745] close(3) = 0 [pid 9745] mkdir("./file0", 0777) = 0 [ 272.670456][ T9741] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 272.681265][ T9741] REISERFS (device loop2): using ordered data mode [ 272.687849][ T9745] loop0: detected capacity change from 0 to 8192 [ 272.688472][ T9741] reiserfs: using flush barriers [ 272.699890][ T9743] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 272.701167][ T9747] loop1: detected capacity change from 0 to 8192 [ 272.713080][ T9741] 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 [ 272.726844][ T9743] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 272.745931][ T9741] REISERFS (device loop2): checking transaction log (loop2) [ 272.746208][ T9743] REISERFS (device loop5): using ordered data mode [ 272.753592][ T9747] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 272.760076][ T9743] reiserfs: using flush barriers [ 272.761391][ T9745] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 272.773681][ T9743] 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 [ 272.778228][ T9745] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 272.793323][ T9741] REISERFS (device loop2): Using r5 hash to sort names [ 272.808593][ T9745] REISERFS (device loop0): using ordered data mode [ 272.818754][ T9743] REISERFS (device loop5): checking transaction log (loop5) [ 272.824623][ T9745] reiserfs: using flush barriers [ 272.832150][ T9747] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 272.840014][ T9741] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9745] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9741] <... mount resumed>) = 0 [pid 9741] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9741] chdir("./file0") = 0 [ 272.844450][ T9745] 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 [ 272.853327][ T9741] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 272.882907][ T9747] REISERFS (device loop1): using ordered data mode [ 272.892452][ T9745] REISERFS (device loop0): checking transaction log (loop0) [ 272.907499][ T9747] reiserfs: using flush barriers [ 272.907977][ T9743] REISERFS (device loop5): Using r5 hash to sort names [pid 9741] ioctl(4, LOOP_CLR_FD) = 0 [ 272.913944][ T9747] 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 [ 272.920336][ T9745] REISERFS (device loop0): Using r5 hash to sort names [ 272.936898][ T9747] REISERFS (device loop1): checking transaction log (loop1) [ 272.943111][ T9743] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 272.951671][ T9747] REISERFS (device loop1): Using r5 hash to sort names [pid 9741] close(4) = 0 [pid 9741] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9740] <... futex resumed>) = 0 [pid 9740] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9741] mkdir("./file1", 000 [pid 9740] <... futex resumed>) = 0 [pid 9740] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9741] <... mkdir resumed>) = 0 [pid 9741] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9740] <... futex resumed>) = 0 [pid 9740] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9741] mkdir("./bus", 000 [pid 9740] <... futex resumed>) = 0 [pid 9740] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9741] <... mkdir resumed>) = 0 [pid 9741] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9740] <... futex resumed>) = 0 [pid 9743] <... mount resumed>) = 0 [pid 9741] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 272.963217][ T9745] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 272.985533][ T9747] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 272.986681][ T9743] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 273.000726][ T9745] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 273.010275][ T9747] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9740] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9743] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9740] <... futex resumed>) = 0 [pid 9747] <... mount resumed>) = 0 [pid 9747] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9747] chdir("./file0") = 0 [pid 9747] ioctl(4, LOOP_CLR_FD) = 0 [pid 9747] close(4 [pid 9740] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9743] <... openat resumed>) = 3 [pid 9743] chdir("./file0") = 0 [pid 9743] ioctl(4, LOOP_CLR_FD) = 0 [pid 9743] close(4) = 0 [pid 9743] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9747] <... close resumed>) = 0 [pid 9747] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9746] <... futex resumed>) = 0 [pid 9746] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9746] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9747] <... futex resumed>) = 1 [pid 9747] mkdir("./file1", 000) = 0 [pid 9747] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9745] <... mount resumed>) = 0 [pid 9743] <... futex resumed>) = 1 [pid 9742] <... futex resumed>) = 0 [pid 9745] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9743] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9742] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9745] <... openat resumed>) = 3 [pid 9743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9742] <... futex resumed>) = 0 [pid 9746] <... futex resumed>) = 0 [pid 9746] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9746] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9747] <... futex resumed>) = 1 [pid 9747] mkdir("./bus", 000) = 0 [pid 9743] mkdir("./file1", 000 [pid 9745] chdir("./file0" [pid 9742] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9745] <... chdir resumed>) = 0 [pid 9743] <... mkdir resumed>) = 0 [pid 9745] ioctl(4, LOOP_CLR_FD [pid 9743] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9747] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9746] <... futex resumed>) = 0 [pid 9746] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9746] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9747] <... futex resumed>) = 1 [pid 9747] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9745] <... ioctl resumed>) = 0 [pid 9743] <... futex resumed>) = 1 [pid 9742] <... futex resumed>) = 0 [pid 9745] close(4 [pid 9743] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9742] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9745] <... close resumed>) = 0 [pid 9743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9742] <... futex resumed>) = 0 [pid 9745] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9743] mkdir("./bus", 000 [pid 9742] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9745] <... futex resumed>) = 1 [pid 9744] <... futex resumed>) = 0 [pid 9744] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9743] <... mkdir resumed>) = 0 [pid 9745] mkdir("./file1", 000 [pid 9744] <... futex resumed>) = 0 [pid 9743] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9744] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9745] <... mkdir resumed>) = 0 [pid 9743] <... futex resumed>) = 1 [pid 9742] <... futex resumed>) = 0 [pid 9743] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9742] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9745] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9742] <... futex resumed>) = 0 [ 273.027472][ T9741] overlayfs: upper fs needs to support d_type. [ 273.033664][ T9741] overlayfs: upper fs does not support tmpfile. [ 273.043163][ T9741] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.052047][ T9741] overlayfs: failed to resolve './file0': -2 [ 273.064227][ T9747] overlayfs: upper fs needs to support d_type. [pid 9742] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9743] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9745] <... futex resumed>) = 1 [pid 9744] <... futex resumed>) = 0 [pid 9744] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9745] mkdir("./bus", 000 [pid 9744] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9745] <... mkdir resumed>) = 0 [pid 9745] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9744] <... futex resumed>) = 0 [pid 9740] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9745] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9744] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9740] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9744] <... futex resumed>) = 0 [pid 9740] <... futex resumed>) = 0 [pid 9745] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9744] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9740] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9740] 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=[9752], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9752 [pid 9740] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9740] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9746] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9741] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9746] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9741] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9746] <... futex resumed>) = 0 [pid 9746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9741] <... futex resumed>) = 0 [pid 9746] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9741] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9746] 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=[9753], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9753 [pid 9746] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9746] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9752 attached [pid 9752] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9752] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9752] 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 9753 attached [pid 9753] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9753] mkdir(".", 0777) = -1 EEXIST (File exists) [ 273.078543][ T9743] overlayfs: upper fs needs to support d_type. [ 273.084565][ T9747] overlayfs: upper fs does not support tmpfile. [ 273.087405][ T9743] overlayfs: upper fs does not support tmpfile. [ 273.099951][ T9745] overlayfs: upper fs needs to support d_type. [ 273.112213][ T9745] overlayfs: upper fs does not support tmpfile. [ 273.122866][ T9743] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9753] 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 9742] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9742] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9744] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9742] <... futex resumed>) = 0 [pid 9744] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9744] <... futex resumed>) = 0 [pid 9744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9744] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9744] 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 9752] <... mount resumed>) = 0 [pid 9752] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9744] <... clone resumed>, parent_tid=[9754], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9754 [pid 9753] <... mount resumed>) = 0 [pid 9752] <... openat resumed>) = 4 [pid 9744] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9753] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9752] chdir("." [pid 9744] <... futex resumed>) = 0 [pid 9753] <... openat resumed>) = 4 [pid 9752] <... chdir resumed>) = 0 [pid 9744] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9753] chdir("." [pid 9752] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9753] <... chdir resumed>) = 0 [pid 9752] <... futex resumed>) = 1 [pid 9740] <... futex resumed>) = 0 [pid 9753] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9752] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9740] exit_group(0 [pid 9753] <... futex resumed>) = 1 [pid 9752] <... futex resumed>) = ? [pid 9746] <... futex resumed>) = 0 [pid 9740] <... exit_group resumed>) = ? [pid 9753] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9752] +++ exited with 0 +++ [pid 9742] <... mmap resumed>) = 0x7f38d9b57000 [pid 9741] <... futex resumed>) = ? [pid 9742] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9741] +++ exited with 0 +++ [pid 9740] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9740, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9742] <... mprotect resumed>) = 0 [pid 5000] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 9754 attached [pid 9742] 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 resumed>) = 0 [pid 9754] set_robust_list(0x7f38d9b779e0, 24 [pid 5000] umount2("./273", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9742] <... clone resumed>, parent_tid=[9755], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9755 [pid 5000] openat(AT_FDCWD, "./273", 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("./273/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./273/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./273/binderfs" [pid 9754] <... set_robust_list resumed>) = 0 [pid 9742] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... unlink resumed>) = 0 [pid 5000] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9755 attached [pid 9755] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9755] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9755] 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 9755] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9755] chdir(".") = 0 [pid 9755] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9755] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9742] <... futex resumed>) = 1 [pid 9754] mkdir(".", 0777 [pid 9742] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9754] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9754] 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 9755] <... futex resumed>) = 0 [pid 9755] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9754] <... mount resumed>) = 0 [pid 9743] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9754] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9754] chdir(".") = 0 [ 273.129165][ T9747] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.131041][ T9745] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.145863][ T9745] overlayfs: failed to resolve './file0': -2 [ 273.153762][ T9743] overlayfs: failed to resolve './file0': -2 [pid 9754] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9744] <... futex resumed>) = 0 [pid 9743] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9754] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9743] <... futex resumed>) = 0 [pid 9745] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9743] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9742] exit_group(0 [pid 9755] <... futex resumed>) = ? [pid 9745] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9743] <... futex resumed>) = ? [pid 9742] <... exit_group resumed>) = ? [pid 9755] +++ exited with 0 +++ [pid 9745] <... futex resumed>) = 0 [pid 9745] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9744] exit_group(0 [pid 9743] +++ exited with 0 +++ [pid 9742] +++ exited with 0 +++ [pid 9754] <... futex resumed>) = ? [pid 9745] <... futex resumed>) = ? [pid 9744] <... exit_group resumed>) = ? [pid 9754] +++ exited with 0 +++ [pid 9745] +++ exited with 0 +++ [pid 9744] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9742, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5003] umount2("./272", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./272", 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, [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9744, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./272/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./272/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./272/binderfs") = 0 [pid 5003] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./272", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./272", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9747] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] getdents64(3, [pid 9747] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9747] <... futex resumed>) = 0 [pid 4998] umount2("./272/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9747] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9746] exit_group(0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9753] <... futex resumed>) = ? [pid 9747] <... futex resumed>) = ? [pid 9746] <... exit_group resumed>) = ? [pid 4998] lstat("./272/binderfs", [pid 9753] +++ exited with 0 +++ [pid 9747] +++ exited with 0 +++ [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./272/binderfs") = 0 [pid 4998] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9746] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9746, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./272", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./272", 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("./272/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./272/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./272/binderfs") = 0 [ 273.176518][ T9747] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./272/file0", [pid 5000] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./273/file0", [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./272/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... openat resumed>) = 4 [pid 5000] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] getdents64(4, [pid 5000] openat(AT_FDCWD, "./273/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... openat resumed>) = 4 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] fstat(4, [pid 5003] close(4) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] rmdir("./272/file0") = 0 [pid 5000] getdents64(4, [pid 5003] getdents64(3, [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3 [pid 5000] getdents64(4, [pid 4998] <... umount2 resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] rmdir("./272" [pid 5000] close(4) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 5000] rmdir("./273/file0" [pid 5003] mkdir("./273", 0777 [pid 4998] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... mkdir resumed>) = 0 [pid 5000] getdents64(3, [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... openat resumed>) = 3 [pid 5000] close(3 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] <... close resumed>) = 0 [pid 5003] close(3 [pid 5000] rmdir("./273" [pid 5003] <... close resumed>) = 0 [pid 4998] lstat("./272/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./272/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("./272/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./272" [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./273", 0777 [pid 5000] mkdir("./274", 0777 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9756 [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] <... mkdir resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9757 [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) = 9758 ./strace-static-x86_64: Process 9756 attached [pid 9756] set_robust_list(0x555556b565e0, 24) = 0 [pid 9756] chdir("./273"./strace-static-x86_64: Process 9757 attached ) = 0 [pid 9757] set_robust_list(0x555556b565e0, 24 [pid 9756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9756] setpgid(0, 0) = 0 [pid 9757] <... set_robust_list resumed>) = 0 [pid 9756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9757] chdir("./274"./strace-static-x86_64: Process 9758 attached [pid 9756] <... openat resumed>) = 3 [pid 9758] set_robust_list(0x555556b565e0, 24 [pid 9757] <... chdir resumed>) = 0 [pid 9757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9758] <... set_robust_list resumed>) = 0 [pid 9758] chdir("./273") = 0 [pid 9758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9758] setpgid(0, 0) = 0 [pid 9758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9757] <... prctl resumed>) = 0 [pid 9757] setpgid(0, 0 [pid 9756] write(3, "1000", 4 [pid 9758] write(3, "1000", 4 [pid 9757] <... setpgid resumed>) = 0 [pid 9756] <... write resumed>) = 4 [pid 9757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9756] close(3 [pid 9757] <... openat resumed>) = 3 [pid 9756] <... close resumed>) = 0 [pid 9757] write(3, "1000", 4 [pid 9756] symlink("/dev/binderfs", "./binderfs" [pid 9757] <... write resumed>) = 4 [pid 9756] <... symlink resumed>) = 0 [pid 9757] close(3 [pid 9756] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9757] <... close resumed>) = 0 [pid 9756] <... futex resumed>) = 0 [pid 9757] symlink("/dev/binderfs", "./binderfs" [pid 9756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9758] <... write resumed>) = 4 [pid 9757] <... symlink resumed>) = 0 [pid 9756] <... mmap resumed>) = 0x7f38e1b78000 [pid 9758] close(3) = 0 [pid 9757] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9756] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9758] symlink("/dev/binderfs", "./binderfs" [pid 9757] <... futex resumed>) = 0 [pid 9756] <... mprotect resumed>) = 0 [pid 9758] <... symlink resumed>) = 0 [pid 9757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9756] 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 9758] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9757] <... mmap resumed>) = 0x7f38e1b78000 [pid 9758] <... futex resumed>) = 0 [pid 9757] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9756] <... clone resumed>, parent_tid=[9759], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9759 [pid 9758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9757] <... mprotect resumed>) = 0 [pid 9758] <... mmap resumed>) = 0x7f38e1b78000 [pid 9757] 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 9756] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9758] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9756] <... futex resumed>) = 0 [pid 9758] <... mprotect resumed>) = 0 [pid 9757] <... clone resumed>, parent_tid=[9760], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9760 [pid 9756] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9759 attached [pid 9758] 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 9757] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9759] set_robust_list(0x7f38e1b989e0, 24 [pid 9757] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9761 attached ./strace-static-x86_64: Process 9760 attached [pid 9759] <... set_robust_list resumed>) = 0 [pid 9758] <... clone resumed>, parent_tid=[9761], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9761 [pid 9757] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... umount2 resumed>) = 0 [pid 9761] set_robust_list(0x7f38e1b989e0, 24 [pid 9760] set_robust_list(0x7f38e1b989e0, 24 [pid 9759] memfd_create("syzkaller", 0 [pid 9758] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9761] <... set_robust_list resumed>) = 0 [pid 9760] <... set_robust_list resumed>) = 0 [pid 9759] <... memfd_create resumed>) = 3 [pid 9758] <... futex resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9761] memfd_create("syzkaller", 0 [pid 9760] memfd_create("syzkaller", 0 [pid 9759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9758] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] lstat("./272/file0", [pid 9761] <... memfd_create resumed>) = 3 [pid 9760] <... memfd_create resumed>) = 3 [pid 9759] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9761] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9761] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./272/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("./272/file0") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./272") = 0 [pid 4999] mkdir("./273", 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) = 9762 ./strace-static-x86_64: Process 9762 attached [pid 9762] set_robust_list(0x555556b565e0, 24) = 0 [pid 9762] chdir("./273") = 0 [pid 9762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9762] setpgid(0, 0) = 0 [pid 9762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9762] write(3, "1000", 4) = 4 [pid 9762] close(3) = 0 [pid 9762] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9762] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9760] 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 9759] 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 9762] <... mmap resumed>) = 0x7f38e1b78000 [pid 9762] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9762] 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=[9763], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9763 [pid 9762] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9762] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9761] 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 9763 attached [pid 9763] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9763] memfd_create("syzkaller", 0) = 3 [pid 9763] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9760] <... write resumed>) = 4194304 [pid 9760] munmap(0x7f38d9778000, 4194304) = 0 [pid 9760] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9760] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9760] close(3) = 0 [pid 9760] mkdir("./file0", 0777) = 0 [pid 9760] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9759] <... write resumed>) = 4194304 [pid 9759] munmap(0x7f38d9778000, 4194304) = 0 [pid 9759] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9763] 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 9761] <... write resumed>) = 4194304 [pid 9761] munmap(0x7f38d9778000, 4194304 [pid 9759] <... openat resumed>) = 4 [pid 9761] <... munmap resumed>) = 0 [pid 9761] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 273.440324][ T9760] loop2: detected capacity change from 0 to 8192 [ 273.456721][ T9760] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 273.471141][ T9760] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 273.476574][ T9761] loop0: detected capacity change from 0 to 8192 [pid 9761] ioctl(4, LOOP_SET_FD, 3 [pid 9759] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9761] <... ioctl resumed>) = 0 [pid 9761] close(3) = 0 [pid 9761] mkdir("./file0", 0777) = 0 [pid 9761] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9759] close(3) = 0 [pid 9759] mkdir("./file0", 0777) = 0 [pid 9759] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9763] <... write resumed>) = 4194304 [pid 9763] munmap(0x7f38d9778000, 4194304) = 0 [pid 9763] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 273.480634][ T9760] REISERFS (device loop2): using ordered data mode [ 273.494003][ T9759] loop5: detected capacity change from 0 to 8192 [ 273.500563][ T9760] reiserfs: using flush barriers [ 273.509250][ T9760] 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 [ 273.521542][ T9763] loop1: detected capacity change from 0 to 8192 [pid 9763] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9763] close(3) = 0 [pid 9763] mkdir("./file0", 0777) = 0 [ 273.526181][ T9759] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 273.535662][ T9760] REISERFS (device loop2): checking transaction log (loop2) [ 273.545197][ T9759] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 273.553716][ T9761] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 273.561212][ T9759] REISERFS (device loop5): using ordered data mode [ 273.574938][ T9763] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 273.580728][ T9759] reiserfs: using flush barriers [ 273.595886][ T9760] REISERFS (device loop2): Using r5 hash to sort names [ 273.600148][ T9761] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 273.606949][ T9760] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 273.628986][ T9759] 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 [ 273.629790][ T9763] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 273.654496][ T9761] REISERFS (device loop0): using ordered data mode [ 273.655223][ T9760] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 273.661586][ T9759] REISERFS (device loop5): checking transaction log (loop5) [ 273.670802][ T9763] REISERFS (device loop1): using ordered data mode [ 273.677695][ T9761] reiserfs: using flush barriers [pid 9763] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9760] <... mount resumed>) = 0 [pid 9760] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9760] chdir("./file0") = 0 [pid 9760] ioctl(4, LOOP_CLR_FD) = 0 [pid 9760] close(4) = 0 [pid 9760] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9760] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9757] <... futex resumed>) = 0 [ 273.684460][ T9763] reiserfs: using flush barriers [ 273.690221][ T9759] REISERFS (device loop5): Using r5 hash to sort names [ 273.702289][ T9761] 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 [ 273.708557][ T9759] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 273.719253][ T9761] REISERFS (device loop0): checking transaction log (loop0) [pid 9757] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9760] <... futex resumed>) = 0 [pid 9757] <... futex resumed>) = 1 [pid 9760] mkdir("./file1", 000 [pid 9757] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9760] <... mkdir resumed>) = 0 [pid 9760] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9760] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9757] <... futex resumed>) = 0 [ 273.731788][ T9763] 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 [ 273.739659][ T9761] REISERFS (device loop0): Using r5 hash to sort names [ 273.762914][ T9761] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 273.772174][ T9763] REISERFS (device loop1): checking transaction log (loop1) [ 273.776159][ T9759] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9757] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9761] <... mount resumed>) = 0 [pid 9760] <... futex resumed>) = 0 [pid 9759] <... mount resumed>) = 0 [pid 9757] <... futex resumed>) = 1 [pid 9760] mkdir("./bus", 000 [pid 9759] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9757] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9760] <... mkdir resumed>) = 0 [pid 9759] <... openat resumed>) = 3 [pid 9760] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9759] chdir("./file0" [pid 9760] <... futex resumed>) = 1 [pid 9759] <... chdir resumed>) = 0 [pid 9757] <... futex resumed>) = 0 [pid 9760] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9759] ioctl(4, LOOP_CLR_FD [pid 9757] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9759] <... ioctl resumed>) = 0 [pid 9757] <... futex resumed>) = 0 [pid 9759] close(4 [pid 9757] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9759] <... close resumed>) = 0 [pid 9759] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9756] <... futex resumed>) = 0 [pid 9759] mkdir("./file1", 000 [pid 9756] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9759] <... mkdir resumed>) = 0 [pid 9756] <... futex resumed>) = 0 [pid 9759] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9756] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9759] <... futex resumed>) = 0 [pid 9756] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9759] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9756] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9756] <... futex resumed>) = 0 [pid 9759] mkdir("./bus", 000 [pid 9756] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9759] <... mkdir resumed>) = 0 [pid 9759] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9756] <... futex resumed>) = 0 [pid 9759] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9756] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9756] <... futex resumed>) = 0 [pid 9759] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9756] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9761] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9761] chdir("./file0") = 0 [pid 9761] ioctl(4, LOOP_CLR_FD) = 0 [pid 9761] close(4) = 0 [pid 9761] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9761] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9758] <... futex resumed>) = 0 [ 273.784205][ T9763] REISERFS (device loop1): Using r5 hash to sort names [ 273.792500][ T9761] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 273.801099][ T9763] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 273.826355][ T9760] overlayfs: upper fs needs to support d_type. [ 273.832871][ T9759] overlayfs: upper fs needs to support d_type. [pid 9758] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9758] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9761] <... futex resumed>) = 0 [pid 9761] mkdir("./file1", 000) = 0 [pid 9761] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9758] <... futex resumed>) = 0 [pid 9758] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9761] mkdir("./bus", 000 [pid 9758] <... futex resumed>) = 0 [pid 9761] <... mkdir resumed>) = 0 [pid 9761] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9761] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9763] <... mount resumed>) = 0 [pid 9763] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9763] chdir("./file0") = 0 [pid 9763] ioctl(4, LOOP_CLR_FD) = 0 [pid 9763] close(4) = 0 [pid 9758] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9758] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9758] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9761] <... futex resumed>) = 0 [pid 9761] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9757] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9757] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9757] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9757] 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=[9768], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9768 [pid 9757] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9757] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9763] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9762] <... futex resumed>) = 0 [pid 9762] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9762] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9763] <... futex resumed>) = 1 [pid 9763] mkdir("./file1", 000) = 0 [pid 9763] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9762] <... futex resumed>) = 0 [pid 9762] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9762] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9756] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9756] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9756] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9756] 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=[9769], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9769 [pid 9756] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9756] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9763] <... futex resumed>) = 1 [pid 9763] mkdir("./bus", 000) = 0 [pid 9763] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9762] <... futex resumed>) = 0 [pid 9762] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9762] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9763] <... futex resumed>) = 1 [ 273.833891][ T9763] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 273.851623][ T9760] overlayfs: upper fs does not support tmpfile. [ 273.860647][ T9761] overlayfs: upper fs needs to support d_type. [ 273.864588][ T9759] overlayfs: upper fs does not support tmpfile. [ 273.877328][ T9759] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.885052][ T9761] overlayfs: upper fs does not support tmpfile. [pid 9763] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,"./strace-static-x86_64: Process 9769 attached ./strace-static-x86_64: Process 9768 attached [pid 9768] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9768] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9768] 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 9769] set_robust_list(0x7f38d9b779e0, 24 [pid 9768] <... mount resumed>) = 0 [pid 9768] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9768] chdir(".") = 0 [pid 9768] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9757] <... futex resumed>) = 0 [pid 9768] <... futex resumed>) = 1 [pid 9768] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9769] <... set_robust_list resumed>) = 0 [pid 9758] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9769] mkdir(".", 0777 [pid 9759] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9758] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9769] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9759] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9758] <... futex resumed>) = 0 [pid 9769] 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 9759] <... futex resumed>) = 0 [pid 9758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9762] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9762] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9762] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9762] 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 9759] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9758] <... mmap resumed>) = 0x7f38d9b57000 [pid 9762] <... clone resumed>, parent_tid=[9770], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9770 [pid 9758] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9762] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9758] <... mprotect resumed>) = 0 [pid 9758] 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 9762] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9770 attached [pid 9770] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9770] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9758] <... clone resumed>, parent_tid=[9771], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9771 [pid 9758] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9758] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9770] 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 9769] <... mount resumed>) = 0 [pid 9769] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9769] chdir(".") = 0 [pid 9769] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9756] <... futex resumed>) = 0 [pid 9769] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9756] exit_group(0 [pid 9769] <... futex resumed>) = ? [pid 9759] <... futex resumed>) = ? [pid 9756] <... exit_group resumed>) = ? [pid 9769] +++ exited with 0 +++ [pid 9759] +++ exited with 0 +++ [pid 9756] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9756, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5003] umount2("./273", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 9771 attached [pid 5003] openat(AT_FDCWD, "./273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9771] set_robust_list(0x7f38d9b779e0, 24 [pid 5003] <... openat resumed>) = 3 [pid 9771] <... set_robust_list resumed>) = 0 [pid 5003] fstat(3, [pid 9771] mkdir(".", 0777 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9771] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9770] <... mount resumed>) = 0 [pid 5003] getdents64(3, [pid 9771] 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, "" [ 273.892595][ T9763] overlayfs: upper fs needs to support d_type. [ 273.895059][ T9759] overlayfs: failed to resolve './file0': -2 [ 273.905355][ T9760] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.910169][ T9761] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.916907][ T9760] overlayfs: failed to resolve './file0': -2 [ 273.920443][ T9763] overlayfs: upper fs does not support tmpfile. [pid 9770] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9770] <... openat resumed>) = 4 [pid 9770] chdir(".") = 0 [pid 9770] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9762] <... futex resumed>) = 0 [pid 9770] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] umount2("./273/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9760] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9760] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] lstat("./273/binderfs", [pid 9760] <... futex resumed>) = 0 [pid 9760] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9771] <... mount resumed>) = 0 [pid 9771] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9757] exit_group(0 [pid 9771] <... openat resumed>) = 4 [pid 9768] <... futex resumed>) = ? [pid 9757] <... exit_group resumed>) = ? [pid 9771] chdir("." [pid 9768] +++ exited with 0 +++ [pid 9771] <... chdir resumed>) = 0 [pid 9771] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9771] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9760] <... futex resumed>) = ? [pid 9758] <... futex resumed>) = 0 [pid 5003] unlink("./273/binderfs" [pid 9763] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9763] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9763] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9760] +++ exited with 0 +++ [pid 9757] +++ exited with 0 +++ [pid 5003] <... unlink resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9757, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5003] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9761] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9761] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./274", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9762] exit_group(0 [pid 9758] exit_group(0 [pid 9770] <... futex resumed>) = ? [pid 9762] <... exit_group resumed>) = ? [pid 9758] <... exit_group resumed>) = ? [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9770] +++ exited with 0 +++ [pid 9763] <... futex resumed>) = ? [pid 5000] openat(AT_FDCWD, "./274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9761] <... futex resumed>) = ? [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 9771] <... futex resumed>) = ? [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9761] +++ exited with 0 +++ [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./274/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./274/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./274/binderfs" [pid 9771] +++ exited with 0 +++ [pid 9758] +++ exited with 0 +++ [pid 9763] +++ exited with 0 +++ [pid 9762] +++ exited with 0 +++ [pid 5000] <... unlink resumed>) = 0 [pid 5000] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9762, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9758, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 4998] umount2("./273", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./273", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] openat(AT_FDCWD, "./273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... openat resumed>) = 3 [pid 4999] openat(AT_FDCWD, "./273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] fstat(3, [pid 4999] <... openat resumed>) = 3 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] fstat(3, [pid 4998] getdents64(3, [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] getdents64(3, [pid 4998] umount2("./273/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./273/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./273/binderfs", [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] lstat("./273/binderfs", [pid 4998] unlink("./273/binderfs" [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 4999] unlink("./273/binderfs" [pid 4998] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [ 273.963484][ T9761] overlayfs: failed to resolve './file0': -2 [ 273.968072][ T9763] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 273.978557][ T9763] overlayfs: failed to resolve './file0': -2 [pid 4999] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./273/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./273/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("./273/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./273") = 0 [pid 5003] mkdir("./274", 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) = 9772 ./strace-static-x86_64: Process 9772 attached [pid 9772] set_robust_list(0x555556b565e0, 24) = 0 [pid 9772] chdir("./274") = 0 [pid 9772] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9772] setpgid(0, 0) = 0 [pid 9772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9772] write(3, "1000", 4) = 4 [pid 9772] close(3) = 0 [pid 9772] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9772] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9772] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9772] 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=[9773], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9773 [pid 9772] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9772] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./273/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./273/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("./273/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./273") = 0 [pid 4998] mkdir("./274", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 9773 attached ) = -1 ENXIO (No such device or address) [pid 9773] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9773] memfd_create("syzkaller", 0 [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9773] <... memfd_create resumed>) = 3 [pid 9773] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9774 [pid 5000] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9774 attached [pid 9774] set_robust_list(0x555556b565e0, 24) = 0 [pid 9774] chdir("./274") = 0 [pid 9774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9774] setpgid(0, 0) = 0 [pid 9774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... umount2 resumed>) = 0 [pid 5000] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./274/file0", [pid 4999] lstat("./273/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./273/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] openat(AT_FDCWD, "./274/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] <... openat resumed>) = 4 [pid 5000] fstat(4, [pid 4999] fstat(4, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, [pid 5000] getdents64(4, [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] getdents64(4, [pid 5000] close(4 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] <... close resumed>) = 0 [pid 4999] close(4 [pid 5000] rmdir("./274/file0" [pid 4999] <... close resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 4999] rmdir("./273/file0" [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9774] <... openat resumed>) = 3 [pid 5000] close(3 [pid 4999] getdents64(3, [pid 9774] write(3, "1000", 4) = 4 [pid 5000] <... close resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9774] close(3 [pid 5000] rmdir("./274" [pid 4999] close(3 [pid 9774] <... close resumed>) = 0 [pid 9774] symlink("/dev/binderfs", "./binderfs" [pid 5000] <... rmdir resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 9774] <... symlink resumed>) = 0 [pid 5000] mkdir("./275", 0777 [pid 4999] rmdir("./273" [pid 9774] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... mkdir resumed>) = 0 [pid 9774] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4999] <... rmdir resumed>) = 0 [pid 9774] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... openat resumed>) = 3 [pid 4999] mkdir("./274", 0777 [pid 9774] <... mprotect resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9774] 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] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4999] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 9775 attached [pid 9773] 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] close(3 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9774] <... clone resumed>, parent_tid=[9775], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9775 [pid 5000] <... close resumed>) = 0 [pid 9774] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9774] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9775] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9775] memfd_create("syzkaller", 0) = 3 [pid 9775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4999] <... openat resumed>) = 3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] ioctl(3, LOOP_CLR_FD [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9776 [pid 4999] <... ioctl resumed>) = -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) = 9777 ./strace-static-x86_64: Process 9776 attached [pid 9776] set_robust_list(0x555556b565e0, 24) = 0 [pid 9776] chdir("./275"./strace-static-x86_64: Process 9777 attached [pid 9777] set_robust_list(0x555556b565e0, 24) = 0 [pid 9776] <... chdir resumed>) = 0 [pid 9777] chdir("./274") = 0 [pid 9777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9777] setpgid(0, 0 [pid 9776] <... prctl resumed>) = 0 [pid 9777] <... setpgid resumed>) = 0 [pid 9776] setpgid(0, 0 [pid 9777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9776] <... setpgid resumed>) = 0 [pid 9777] <... openat resumed>) = 3 [pid 9776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9776] write(3, "1000", 4) = 4 [pid 9776] close(3) = 0 [pid 9776] symlink("/dev/binderfs", "./binderfs" [pid 9777] write(3, "1000", 4 [pid 9776] <... symlink resumed>) = 0 [pid 9777] <... write resumed>) = 4 [pid 9776] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9777] close(3 [pid 9776] <... futex resumed>) = 0 [pid 9777] <... close resumed>) = 0 [pid 9776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9777] symlink("/dev/binderfs", "./binderfs" [pid 9776] <... mmap resumed>) = 0x7f38e1b78000 [pid 9777] <... symlink resumed>) = 0 [pid 9776] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9777] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] <... mprotect resumed>) = 0 [pid 9777] <... futex resumed>) = 0 [pid 9776] 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 9777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9776] <... clone resumed>, parent_tid=[9778], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9778 [pid 9777] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9776] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9778 attached [pid 9777] <... mprotect resumed>) = 0 [pid 9776] <... futex resumed>) = 0 [pid 9773] <... write resumed>) = 4194304 [pid 9778] set_robust_list(0x7f38e1b989e0, 24 [pid 9777] 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 9776] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9773] munmap(0x7f38d9778000, 4194304 [pid 9778] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 9779 attached [pid 9779] set_robust_list(0x7f38e1b989e0, 24 [pid 9773] <... munmap resumed>) = 0 [pid 9778] memfd_create("syzkaller", 0 [pid 9777] <... clone resumed>, parent_tid=[9779], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9779 [pid 9773] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9778] <... memfd_create resumed>) = 3 [pid 9777] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9778] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9777] <... futex resumed>) = 0 [pid 9773] <... openat resumed>) = 4 [pid 9778] <... mmap resumed>) = 0x7f38d9778000 [pid 9777] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9773] ioctl(4, LOOP_SET_FD, 3 [pid 9779] <... set_robust_list resumed>) = 0 [pid 9779] memfd_create("syzkaller", 0) = 3 [pid 9779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9773] <... ioctl resumed>) = 0 [pid 9775] 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 9773] close(3) = 0 [pid 9773] mkdir("./file0", 0777) = 0 [pid 9773] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9779] 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 9778] 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 9779] <... write resumed>) = 4194304 [pid 9779] munmap(0x7f38d9778000, 4194304) = 0 [pid 9779] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9779] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9779] close(3) = 0 [pid 9779] mkdir("./file0", 0777) = 0 [ 274.216588][ T9773] loop5: detected capacity change from 0 to 8192 [ 274.232939][ T9773] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9779] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9775] <... write resumed>) = 4194304 [pid 9775] munmap(0x7f38d9778000, 4194304) = 0 [pid 9778] <... write resumed>) = 4194304 [pid 9778] munmap(0x7f38d9778000, 4194304) = 0 [pid 9778] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 274.269831][ T9773] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 274.277865][ T9779] loop1: detected capacity change from 0 to 8192 [ 274.291460][ T9773] REISERFS (device loop5): using ordered data mode [ 274.299368][ T9773] reiserfs: using flush barriers [ 274.300084][ T9779] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9778] ioctl(4, LOOP_SET_FD, 3 [pid 9775] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9778] <... ioctl resumed>) = 0 [pid 9778] close(3) = 0 [pid 9778] mkdir("./file0", 0777) = 0 [pid 9778] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9775] <... openat resumed>) = 4 [pid 9775] ioctl(4, LOOP_SET_FD, 3) = 0 [ 274.314675][ T9778] loop2: detected capacity change from 0 to 8192 [ 274.317809][ T9773] 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 [ 274.328517][ T9779] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 274.349465][ T9775] loop0: detected capacity change from 0 to 8192 [ 274.349755][ T9779] REISERFS (device loop1): using ordered data mode [pid 9775] close(3) = 0 [pid 9775] mkdir("./file0", 0777) = 0 [ 274.356519][ T9778] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 274.363167][ T9779] reiserfs: using flush barriers [ 274.381422][ T9773] REISERFS (device loop5): checking transaction log (loop5) [ 274.382422][ T9778] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 274.389698][ T9773] REISERFS (device loop5): Using r5 hash to sort names [ 274.398118][ T9779] 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 9775] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9773] <... mount resumed>) = 0 [pid 9773] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9773] chdir("./file0") = 0 [pid 9773] ioctl(4, LOOP_CLR_FD) = 0 [pid 9773] close(4) = 0 [pid 9773] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9772] <... futex resumed>) = 0 [pid 9773] mkdir("./file1", 000 [pid 9772] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9773] <... mkdir resumed>) = 0 [pid 9772] <... futex resumed>) = 0 [pid 9773] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9772] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9773] <... futex resumed>) = 0 [pid 9772] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9773] mkdir("./bus", 000 [pid 9772] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9773] <... mkdir resumed>) = 0 [pid 9772] <... futex resumed>) = 0 [pid 9773] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9772] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9773] <... futex resumed>) = 0 [pid 9772] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9773] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9772] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 274.404971][ T9773] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 274.425306][ T9778] REISERFS (device loop2): using ordered data mode [ 274.433913][ T9773] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 274.441557][ T9779] REISERFS (device loop1): checking transaction log (loop1) [ 274.449428][ T9778] reiserfs: using flush barriers [ 274.466307][ T9775] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 274.478481][ T9773] overlayfs: upper fs needs to support d_type. [ 274.485648][ T9773] overlayfs: upper fs does not support tmpfile. [ 274.491149][ T9779] REISERFS (device loop1): Using r5 hash to sort names [ 274.492896][ T9778] 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 9772] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9772] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9772] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9772] 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=[9784], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9784 [pid 9772] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9772] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9784 attached [pid 9784] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9784] mkdir(".", 0777) = -1 EEXIST (File exists) [ 274.498811][ T9775] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 274.524923][ T9779] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 274.536389][ T9775] REISERFS (device loop0): using ordered data mode [ 274.539841][ T9773] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 274.546850][ T9775] reiserfs: using flush barriers [ 274.552985][ T9779] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9784] 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 9779] <... mount resumed>) = 0 [pid 9779] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9779] chdir("./file0") = 0 [pid 9779] ioctl(4, LOOP_CLR_FD) = 0 [pid 9779] close(4) = 0 [pid 9779] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9779] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9784] <... mount resumed>) = 0 [pid 9777] <... futex resumed>) = 0 [pid 9777] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9773] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9779] <... futex resumed>) = 0 [pid 9777] <... futex resumed>) = 1 [pid 9779] mkdir("./file1", 000 [pid 9777] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9773] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9784] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9779] <... mkdir resumed>) = 0 [pid 9773] <... futex resumed>) = 0 [pid 9779] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9773] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9779] <... futex resumed>) = 0 [ 274.559412][ T9778] REISERFS (device loop2): checking transaction log (loop2) [ 274.567130][ T9775] 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 [ 274.575076][ T9773] overlayfs: failed to resolve './file0': -2 [ 274.591715][ T9778] REISERFS (device loop2): Using r5 hash to sort names [ 274.601052][ T9775] REISERFS (device loop0): checking transaction log (loop0) [ 274.612046][ T9775] REISERFS (device loop0): Using r5 hash to sort names [pid 9779] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9784] <... openat resumed>) = 4 [pid 9777] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9784] chdir("." [pid 9777] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9784] <... chdir resumed>) = 0 [pid 9784] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9779] <... futex resumed>) = 0 [pid 9777] <... futex resumed>) = 1 [pid 9779] mkdir("./bus", 000) = 0 [pid 9779] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9779] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9778] <... mount resumed>) = 0 [pid 9778] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9778] chdir("./file0") = 0 [pid 9778] ioctl(4, LOOP_CLR_FD) = 0 [pid 9778] close(4 [pid 9784] <... futex resumed>) = 1 [pid 9777] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9772] <... futex resumed>) = 0 [pid 9772] exit_group(0 [pid 9784] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9777] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9784] <... futex resumed>) = ? [pid 9777] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9773] <... futex resumed>) = ? [pid 9772] <... exit_group resumed>) = ? [pid 9777] <... futex resumed>) = 1 [pid 9775] <... mount resumed>) = 0 [pid 9777] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9778] <... close resumed>) = 0 [pid 9775] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9784] +++ exited with 0 +++ [pid 9779] <... futex resumed>) = 0 [pid 9773] +++ exited with 0 +++ [pid 9772] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9772, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9779] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 274.613899][ T9778] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 274.631136][ T9775] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 274.632204][ T9778] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 274.654562][ T9775] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5003] umount2("./274", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9778] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9775] <... openat resumed>) = 3 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9778] <... futex resumed>) = 1 [pid 9776] <... futex resumed>) = 0 [pid 9775] chdir("./file0" [pid 5003] openat(AT_FDCWD, "./274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9778] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9776] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9775] <... chdir resumed>) = 0 [pid 9778] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9776] <... futex resumed>) = 0 [pid 9775] ioctl(4, LOOP_CLR_FD [pid 5003] <... openat resumed>) = 3 [pid 9778] mkdir("./file1", 000 [pid 9776] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9775] <... ioctl resumed>) = 0 [pid 5003] fstat(3, [pid 9778] <... mkdir resumed>) = 0 [pid 9775] close(4 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9778] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9775] <... close resumed>) = 0 [pid 9778] <... futex resumed>) = 1 [pid 9776] <... futex resumed>) = 0 [pid 9775] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] getdents64(3, [pid 9778] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9776] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9776] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9775] <... futex resumed>) = 1 [pid 9774] <... futex resumed>) = 0 [pid 9778] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9778] mkdir("./bus", 000 [pid 9775] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] umount2("./274/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9778] <... mkdir resumed>) = 0 [pid 9774] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9778] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] lstat("./274/binderfs", [pid 9778] <... futex resumed>) = 1 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9778] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] unlink("./274/binderfs" [pid 9776] <... futex resumed>) = 0 [pid 9774] <... futex resumed>) = 1 [pid 9775] <... futex resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 9775] mkdir("./file1", 000 [pid 5003] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9776] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9775] <... mkdir resumed>) = 0 [pid 9774] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9775] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9775] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9778] <... futex resumed>) = 0 [pid 9776] <... futex resumed>) = 1 [pid 9774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9778] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9776] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9774] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9774] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9775] <... futex resumed>) = 0 [pid 9775] mkdir("./bus", 000) = 0 [pid 9775] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9774] <... futex resumed>) = 0 [pid 9775] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9774] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9775] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9774] <... futex resumed>) = 0 [pid 9775] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9774] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9777] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 274.668893][ T9779] overlayfs: upper fs needs to support d_type. [ 274.675101][ T9779] overlayfs: upper fs does not support tmpfile. [ 274.685221][ T9779] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 274.695973][ T9779] overlayfs: failed to resolve './file0': -2 [ 274.703194][ T9778] overlayfs: upper fs needs to support d_type. [ 274.712751][ T9775] overlayfs: upper fs needs to support d_type. [pid 9777] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 9776] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9776] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9776] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9776] 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=[9785], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9785 [pid 9776] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9776] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9785 attached [pid 9785] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9785] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9785] 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 9777] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9779] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9779] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9777] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5003] lstat("./274/file0", [pid 9779] <... futex resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9779] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9777] <... mprotect resumed>) = 0 [pid 9777] 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("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9777] <... clone resumed>, parent_tid=[9786], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9786 [pid 5003] openat(AT_FDCWD, "./274/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9777] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] <... openat resumed>) = 4 [pid 9777] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [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("./274/file0" [pid 9785] <... mount resumed>) = 0 [pid 9785] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5003] <... rmdir resumed>) = 0 [pid 9785] <... openat resumed>) = 4 [pid 5003] getdents64(3, [pid 9785] chdir("." [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3 [pid 9785] <... chdir resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./274" [pid 9785] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9776] <... futex resumed>) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 9785] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] mkdir("./275", 0777) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9774] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9774] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9774] <... futex resumed>) = 0 [pid 5003] close(3 [pid 9774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... close resumed>) = 0 [pid 9774] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9774] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9774] 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=[9787], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9787 [pid 9774] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 274.720067][ T9778] overlayfs: upper fs does not support tmpfile. [ 274.727257][ T9775] overlayfs: upper fs does not support tmpfile. [ 274.733983][ T9775] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 274.740984][ T9778] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 274.742122][ T9778] overlayfs: failed to resolve './file0': -2 [pid 9774] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9788 ./strace-static-x86_64: Process 9788 attached ./strace-static-x86_64: Process 9787 attached ./strace-static-x86_64: Process 9786 attached [pid 9788] set_robust_list(0x555556b565e0, 24) = 0 [pid 9787] set_robust_list(0x7f38d9b779e0, 24 [pid 9786] set_robust_list(0x7f38d9b779e0, 24 [pid 9788] chdir("./275" [pid 9787] <... set_robust_list resumed>) = 0 [pid 9786] <... set_robust_list resumed>) = 0 [pid 9788] <... chdir resumed>) = 0 [pid 9787] mkdir(".", 0777 [pid 9786] mkdir(".", 0777 [pid 9788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9787] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9786] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9788] <... prctl resumed>) = 0 [pid 9787] 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 9786] 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 9788] setpgid(0, 0 [pid 9787] <... mount resumed>) = 0 [pid 9788] <... setpgid resumed>) = 0 [pid 9788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9787] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9788] <... openat resumed>) = 3 [pid 9787] <... openat resumed>) = 4 [pid 9786] <... mount resumed>) = 0 [pid 9788] write(3, "1000", 4 [pid 9787] chdir("." [pid 9786] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9788] <... write resumed>) = 4 [pid 9787] <... chdir resumed>) = 0 [pid 9786] <... openat resumed>) = 4 [pid 9788] close(3 [pid 9787] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9786] chdir("." [pid 9788] <... close resumed>) = 0 [pid 9787] <... futex resumed>) = 1 [pid 9786] <... chdir resumed>) = 0 [pid 9778] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9774] <... futex resumed>) = 0 [pid 9788] symlink("/dev/binderfs", "./binderfs" [pid 9787] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9786] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9778] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9776] exit_group(0 [pid 9775] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9788] <... symlink resumed>) = 0 [pid 9786] <... futex resumed>) = 1 [pid 9785] <... futex resumed>) = ? [pid 9778] <... futex resumed>) = ? [pid 9777] <... futex resumed>) = 0 [pid 9776] <... exit_group resumed>) = ? [pid 9775] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9788] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9786] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9785] +++ exited with 0 +++ [pid 9778] +++ exited with 0 +++ [pid 9777] exit_group(0 [pid 9775] <... futex resumed>) = 0 [pid 9788] <... futex resumed>) = 0 [pid 9786] <... futex resumed>) = ? [pid 9779] <... futex resumed>) = ? [pid 9777] <... exit_group resumed>) = ? [pid 9775] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9776] +++ exited with 0 +++ [pid 9788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9786] +++ exited with 0 +++ [pid 9779] +++ exited with 0 +++ [pid 9774] exit_group(0 [pid 9787] <... futex resumed>) = ? [pid 9774] <... exit_group resumed>) = ? [pid 9787] +++ exited with 0 +++ [pid 9775] <... futex resumed>) = ? [pid 9777] +++ exited with 0 +++ [pid 9788] <... mmap resumed>) = 0x7f38e1b78000 [pid 9788] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9776, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9777, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 9788] <... mprotect resumed>) = 0 [pid 9775] +++ exited with 0 +++ [pid 9774] +++ exited with 0 +++ [pid 5000] umount2("./275", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9788] 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 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9774, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5000] openat(AT_FDCWD, "./275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9788] <... clone resumed>, parent_tid=[9789], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9789 [pid 5000] <... openat resumed>) = 3 [pid 9788] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] fstat(3, [pid 9788] <... futex resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9788] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] getdents64(3, ./strace-static-x86_64: Process 9789 attached 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9789] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 5000] umount2("./275/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./274", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./274", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./275/binderfs", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] openat(AT_FDCWD, "./274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] unlink("./275/binderfs" [pid 4998] openat(AT_FDCWD, "./274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... openat resumed>) = 3 [pid 9789] memfd_create("syzkaller", 0 [pid 5000] <... unlink resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5000] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] fstat(3, [pid 4998] fstat(3, [pid 9789] <... memfd_create resumed>) = 3 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 4999] getdents64(3, [pid 4998] getdents64(3, [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./274/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./274/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./274/binderfs", [pid 4999] lstat("./274/binderfs", [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./274/binderfs" [pid 4999] unlink("./274/binderfs" [pid 4998] <... unlink resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 4998] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 274.777352][ T9775] overlayfs: failed to resolve './file0': -2 [pid 9789] 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("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./275/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./275/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("./275/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./275") = 0 [pid 9789] <... write resumed>) = 4194304 [pid 5000] mkdir("./276", 0777 [pid 9789] munmap(0x7f38d9778000, 4194304 [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 9789] <... munmap resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9789] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5000] close(3 [pid 9789] <... openat resumed>) = 4 [pid 5000] <... close resumed>) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9789] ioctl(4, LOOP_SET_FD, 3 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./274/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./274/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("./274/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./274") = 0 [pid 4998] mkdir("./275", 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 9789] <... ioctl resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9790 [pid 9789] close(3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 9790 attached [pid 9789] <... close resumed>) = 0 [pid 4999] lstat("./274/file0", [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9791 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9789] mkdir("./file0", 0777 [pid 4999] umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9791 attached ) = -1 EINVAL (Invalid argument) [pid 9791] set_robust_list(0x555556b565e0, 24) = 0 [pid 4999] openat(AT_FDCWD, "./274/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9791] chdir("./275" [pid 9789] <... mkdir resumed>) = 0 [pid 4999] fstat(4, [pid 9791] <... chdir resumed>) = 0 [pid 9791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9791] setpgid(0, 0 [pid 4999] <... fstat resumed>{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("./274/file0" [pid 9791] <... setpgid resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 9790] set_robust_list(0x555556b565e0, 24 [pid 9789] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./274" [pid 9791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./275", 0777 [pid 9791] <... openat resumed>) = 3 [pid 9791] write(3, "1000", 4) = 4 [pid 9791] close(3 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9791] <... close resumed>) = 0 [pid 4999] <... openat resumed>) = 3 [pid 9791] symlink("/dev/binderfs", "./binderfs" [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 9791] <... symlink resumed>) = 0 [pid 9791] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9792 [pid 9791] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9791] 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 9790] <... set_robust_list resumed>) = 0 [pid 9791] <... clone resumed>, parent_tid=[9794], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9794 [pid 9791] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9790] chdir("./276" [pid 9791] <... futex resumed>) = 0 [pid 9791] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9792 attached [pid 9792] set_robust_list(0x555556b565e0, 24) = 0 [pid 9792] chdir("./275" [pid 9790] <... chdir resumed>) = 0 [pid 9790] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9792] <... chdir resumed>) = 0 [pid 9790] setpgid(0, 0 [pid 9792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9792] setpgid(0, 0) = 0 [pid 9792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9792] write(3, "1000", 4) = 4 [pid 9792] close(3) = 0 [pid 9792] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9792] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9792] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9792] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9792] 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 9794 attached [pid 9794] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9794] memfd_create("syzkaller", 0 [pid 9792] <... clone resumed>, parent_tid=[9795], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9795 [pid 9792] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9792] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9794] <... memfd_create resumed>) = 3 [pid 9794] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9790] <... setpgid resumed>) = 0 [pid 9790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9790] write(3, "1000", 4) = 4 [pid 9790] close(3) = 0 [pid 9790] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9790] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9790] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9790] 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=[9796], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9796 [pid 9790] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9790] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9795 attached [pid 9795] set_robust_list(0x7f38e1b989e0, 24) = 0 ./strace-static-x86_64: Process 9796 attached [pid 9796] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9795] memfd_create("syzkaller", 0) = 3 [pid 9795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9796] memfd_create("syzkaller", 0) = 3 [pid 9795] <... mmap resumed>) = 0x7f38d9778000 [pid 9796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 274.909145][ T9789] loop5: detected capacity change from 0 to 8192 [ 274.942547][ T9789] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9794] 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 9796] 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 9795] 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 9796] <... write resumed>) = 4194304 [pid 9796] munmap(0x7f38d9778000, 4194304) = 0 [pid 9796] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 274.986161][ T9789] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 274.996842][ T9789] REISERFS (device loop5): using ordered data mode [ 275.004079][ T9789] reiserfs: using flush barriers [ 275.015663][ T9789] 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 9796] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9796] close(3) = 0 [pid 9796] mkdir("./file0", 0777) = 0 [pid 9796] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9795] <... write resumed>) = 4194304 [pid 9795] munmap(0x7f38d9778000, 4194304) = 0 [pid 9795] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9795] ioctl(4, LOOP_SET_FD, 3 [pid 9794] <... write resumed>) = 4194304 [pid 9795] <... ioctl resumed>) = 0 [pid 9795] close(3) = 0 [pid 9795] mkdir("./file0", 0777) = 0 [ 275.050868][ T9796] loop2: detected capacity change from 0 to 8192 [ 275.061710][ T9789] REISERFS (device loop5): checking transaction log (loop5) [ 275.070331][ T9796] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.080438][ T9795] loop1: detected capacity change from 0 to 8192 [ 275.088366][ T9789] REISERFS (device loop5): Using r5 hash to sort names [pid 9795] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9794] munmap(0x7f38d9778000, 4194304) = 0 [ 275.091960][ T9796] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 275.107478][ T9796] REISERFS (device loop2): using ordered data mode [ 275.114252][ T9795] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.114803][ T9796] reiserfs: using flush barriers [ 275.128548][ T9789] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9794] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9794] ioctl(4, LOOP_SET_FD, 3 [pid 9789] <... mount resumed>) = 0 [pid 9794] <... ioctl resumed>) = 0 [pid 9794] close(3) = 0 [pid 9794] mkdir("./file0", 0777) = 0 [ 275.146344][ T9795] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 275.155606][ T9789] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 275.155793][ T9795] REISERFS (device loop1): using ordered data mode [ 275.165679][ T9796] 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 [ 275.172744][ T9794] loop0: detected capacity change from 0 to 8192 [ 275.187968][ T9796] REISERFS (device loop2): checking transaction log (loop2) [pid 9794] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9789] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9789] chdir("./file0") = 0 [pid 9789] ioctl(4, LOOP_CLR_FD) = 0 [pid 9789] close(4) = 0 [pid 9789] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9789] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9788] <... futex resumed>) = 0 [pid 9788] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9789] <... futex resumed>) = 0 [pid 9788] <... futex resumed>) = 1 [pid 9789] mkdir("./file1", 000 [pid 9788] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9789] <... mkdir resumed>) = 0 [pid 9789] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9788] <... futex resumed>) = 0 [pid 9789] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9788] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9789] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9788] <... futex resumed>) = 0 [pid 9789] mkdir("./bus", 000 [pid 9788] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9789] <... mkdir resumed>) = 0 [pid 9789] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9788] <... futex resumed>) = 0 [pid 9789] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9788] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9789] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9788] <... futex resumed>) = 0 [pid 9789] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 275.200097][ T9795] reiserfs: using flush barriers [ 275.202417][ T9796] REISERFS (device loop2): Using r5 hash to sort names [ 275.213535][ T9794] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.232802][ T9795] 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 9788] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9788] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9796] <... mount resumed>) = 0 [pid 9796] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9796] chdir("./file0") = 0 [pid 9796] ioctl(4, LOOP_CLR_FD) = 0 [pid 9796] close(4) = 0 [pid 9796] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9796] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9790] <... futex resumed>) = 0 [pid 9788] <... mmap resumed>) = 0x7f38d9b57000 [pid 9790] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9796] <... futex resumed>) = 0 [pid 9790] <... futex resumed>) = 1 [pid 9788] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9796] mkdir("./file1", 000 [pid 9790] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9788] <... mprotect resumed>) = 0 [pid 9796] <... mkdir resumed>) = 0 [pid 9796] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9788] 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 9796] <... futex resumed>) = 1 [pid 9790] <... futex resumed>) = 0 [pid 9790] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9796] mkdir("./bus", 000 [pid 9790] <... futex resumed>) = 0 [pid 9788] <... clone resumed>, parent_tid=[9800], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9800 [pid 9796] <... mkdir resumed>) = 0 [pid 9790] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9788] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9796] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9790] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9796] <... futex resumed>) = 0 [pid 9790] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9796] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9790] <... futex resumed>) = 0 [ 275.234498][ T9796] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 275.249527][ T9795] REISERFS (device loop1): checking transaction log (loop1) [ 275.262619][ T9789] overlayfs: upper fs needs to support d_type. [ 275.269670][ T9796] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 275.285835][ T9795] REISERFS (device loop1): Using r5 hash to sort names [ 275.290839][ T9794] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9790] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9788] <... futex resumed>) = 0 [pid 9788] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9800 attached [pid 9800] set_robust_list(0x7f38d9b779e0, 24) = 0 [ 275.305810][ T9794] REISERFS (device loop0): using ordered data mode [ 275.307296][ T9796] overlayfs: upper fs needs to support d_type. [ 275.312728][ T9794] reiserfs: using flush barriers [ 275.325375][ T9789] overlayfs: upper fs does not support tmpfile. [ 275.325569][ T9794] 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 [ 275.336465][ T9794] REISERFS (device loop0): checking transaction log (loop0) [pid 9800] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9790] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9800] 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 9790] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 275.356240][ T9795] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 275.357274][ T9789] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 275.369188][ T9796] overlayfs: upper fs does not support tmpfile. [ 275.378342][ T9789] overlayfs: failed to resolve './file0': -2 [ 275.383136][ T9796] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 275.390278][ T9794] REISERFS (device loop0): Using r5 hash to sort names [pid 9790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9789] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9789] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9789] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9800] <... mount resumed>) = 0 [pid 9800] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9800] chdir(".") = 0 [pid 9790] <... mmap resumed>) = 0x7f38d9b57000 [pid 9790] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9800] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9790] <... mprotect resumed>) = 0 [pid 9795] <... mount resumed>) = 0 [pid 9790] 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 9795] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9800] <... futex resumed>) = 1 [pid 9795] <... openat resumed>) = 3 [pid 9790] <... clone resumed>, parent_tid=[9801], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9801 [pid 9795] chdir("./file0" [pid 9788] <... futex resumed>) = 0 [pid 9795] <... chdir resumed>) = 0 [pid 9790] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9788] exit_group(0 [pid 9795] ioctl(4, LOOP_CLR_FD [pid 9790] <... futex resumed>) = 0 [pid 9788] <... exit_group resumed>) = ? [pid 9789] <... futex resumed>) = ? [pid 9789] +++ exited with 0 +++ [pid 9800] +++ exited with 0 +++ ./strace-static-x86_64: Process 9801 attached [pid 9795] <... ioctl resumed>) = 0 [pid 9790] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9788] +++ exited with 0 +++ [pid 9795] close(4 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9788, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9795] <... close resumed>) = 0 [pid 9801] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9801] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9801] 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 9795] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./275", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9795] <... futex resumed>) = 1 [pid 9795] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9792] <... futex resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9792] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... openat resumed>) = 3 [pid 9795] <... futex resumed>) = 0 [pid 9792] <... futex resumed>) = 1 [pid 5003] fstat(3, [pid 9795] mkdir("./file1", 000 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9795] <... mkdir resumed>) = 0 [pid 9792] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] getdents64(3, [pid 9795] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9795] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9792] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./275/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9795] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9792] <... futex resumed>) = 0 [pid 9795] mkdir("./bus", 000 [pid 9792] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9795] <... mkdir resumed>) = 0 [pid 5003] lstat("./275/binderfs", [pid 9795] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9795] <... futex resumed>) = 1 [pid 9792] <... futex resumed>) = 0 [pid 5003] unlink("./275/binderfs" [pid 9795] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9792] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9792] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] <... unlink resumed>) = 0 [pid 9795] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5003] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9795] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9794] <... mount resumed>) = 0 [pid 9794] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 275.396457][ T9795] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 275.403710][ T9794] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 275.413348][ T9796] overlayfs: failed to resolve './file0': -2 [ 275.433994][ T9794] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9794] chdir("./file0") = 0 [pid 9794] ioctl(4, LOOP_CLR_FD) = 0 [pid 9794] close(4) = 0 [pid 9794] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9791] <... futex resumed>) = 0 [pid 9791] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9791] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9794] <... futex resumed>) = 1 [pid 9794] mkdir("./file1", 000) = 0 [pid 9796] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9794] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9796] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9791] <... futex resumed>) = 0 [pid 9791] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9791] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9796] <... futex resumed>) = 0 [pid 9796] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9794] <... futex resumed>) = 1 [pid 9794] mkdir("./bus", 000) = 0 [pid 9794] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9791] <... futex resumed>) = 0 [pid 9794] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9791] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9801] <... mount resumed>) = 0 [pid 9791] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9801] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9801] chdir(".") = 0 [pid 9801] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9801] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9790] <... futex resumed>) = 0 [pid 9790] exit_group(0) = ? [pid 9796] <... futex resumed>) = ? [pid 9801] <... futex resumed>) = ? [pid 9796] +++ exited with 0 +++ [pid 9801] +++ exited with 0 +++ [pid 9790] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9790, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 9792] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9792] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./276", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9792] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./276", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9792] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 9792] <... mmap resumed>) = 0x7f38d9b57000 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 9792] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./276/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9792] <... mprotect resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./276/binderfs", [pid 9792] 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 resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./276/binderfs" [pid 9792] <... clone resumed>, parent_tid=[9802], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9802 [pid 5000] <... unlink resumed>) = 0 [pid 5000] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9792] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 275.457683][ T9795] overlayfs: upper fs needs to support d_type. [ 275.473339][ T9794] overlayfs: upper fs needs to support d_type. [ 275.482863][ T9794] overlayfs: upper fs does not support tmpfile. [ 275.491604][ T9795] overlayfs: upper fs does not support tmpfile. [ 275.492998][ T9794] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9792] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9802 attached [pid 9802] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9802] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9802] 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 9791] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9791] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9791] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9791] 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=[9803], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9803 [pid 9791] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9791] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9802] <... mount resumed>) = 0 [pid 9802] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9802] chdir(".") = 0 [pid 9802] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9792] <... futex resumed>) = 0 [pid 9802] <... futex resumed>) = 1 [pid 9802] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9803 attached [pid 9803] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9803] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9803] 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 9803] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9803] chdir(".") = 0 [pid 9803] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9791] <... futex resumed>) = 0 [pid 9803] <... futex resumed>) = 1 [pid 9803] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./275/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 275.520055][ T9795] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 275.541640][ T9794] overlayfs: failed to resolve './file0': -2 [pid 9794] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9794] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9791] exit_group(0 [pid 9803] <... futex resumed>) = ? [pid 9791] <... exit_group resumed>) = ? [pid 9803] +++ exited with 0 +++ [pid 9794] <... futex resumed>) = ? [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9794] +++ exited with 0 +++ [pid 9791] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9791, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5003] openat(AT_FDCWD, "./275/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("./275/file0" [pid 4998] umount2("./275", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... rmdir resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] openat(AT_FDCWD, "./275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] close(3 [pid 4998] <... openat resumed>) = 3 [pid 5003] <... close resumed>) = 0 [pid 4998] fstat(3, [pid 5003] rmdir("./275" [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 5003] mkdir("./276", 0777 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] <... mkdir resumed>) = 0 [pid 4998] umount2("./275/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... openat resumed>) = 3 [pid 4998] lstat("./275/binderfs", [pid 5003] ioctl(3, LOOP_CLR_FD [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] unlink("./275/binderfs" [pid 5003] close(3 [pid 4998] <... unlink resumed>) = 0 [pid 9795] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5003] <... close resumed>) = 0 [pid 4998] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9795] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9795] <... futex resumed>) = 0 [pid 9792] exit_group(0 [pid 9802] <... futex resumed>) = ? [pid 9792] <... exit_group resumed>) = ? [pid 9802] +++ exited with 0 +++ [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9804 [pid 9795] +++ exited with 0 +++ [pid 9792] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9792, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4999] umount2("./275", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9804 attached [pid 9804] set_robust_list(0x555556b565e0, 24) = 0 [pid 9804] chdir("./276") = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9804] setpgid(0, 0 [pid 4999] umount2("./275/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./275/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4999] unlink("./275/binderfs" [pid 5000] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... unlink resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./276/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9804] <... setpgid resumed>) = 0 [pid 9804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9804] write(3, "1000", 4) = 4 [pid 9804] close(3) = 0 [pid 9804] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9804] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5000] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9804] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9804] 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 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./276/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, [pid 9804] <... clone resumed>, parent_tid=[9805], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9805 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9804] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] getdents64(4, [pid 9804] <... futex resumed>) = 0 [pid 9804] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [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("./276/file0"./strace-static-x86_64: Process 9805 attached ) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./276") = 0 [pid 5000] mkdir("./277", 0777) = 0 [ 275.571062][ T9795] overlayfs: failed to resolve './file0': -2 [pid 9805] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9805] memfd_create("syzkaller", 0) = 3 [pid 9805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [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) = 9806 ./strace-static-x86_64: Process 9806 attached [pid 9806] set_robust_list(0x555556b565e0, 24) = 0 [pid 9806] chdir("./277") = 0 [pid 9806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9806] setpgid(0, 0) = 0 [pid 9806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9806] write(3, "1000", 4) = 4 [pid 9806] close(3) = 0 [pid 9806] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9806] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9806] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9806] 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=[9807], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9807 [pid 9806] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9806] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./275/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./275/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("./275/file0"./strace-static-x86_64: Process 9807 attached [pid 4999] <... umount2 resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4999] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] getdents64(3, [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] lstat("./275/file0", [pid 4998] close(3 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... close resumed>) = 0 [pid 4999] umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] rmdir("./275" [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... rmdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "./275/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] mkdir("./276", 0777 [pid 4999] <... openat resumed>) = 4 [pid 4998] <... mkdir resumed>) = 0 [pid 9807] set_robust_list(0x7f38e1b989e0, 24 [pid 4999] fstat(4, [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9807] <... set_robust_list resumed>) = 0 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... openat resumed>) = 3 [pid 9807] memfd_create("syzkaller", 0 [pid 4999] getdents64(4, [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9807] <... memfd_create resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9807] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4999] getdents64(4, [pid 4998] close(3 [pid 9807] <... mmap resumed>) = 0x7f38d9778000 [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] <... close resumed>) = 0 [pid 4999] close(4 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./275/file0" [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9808 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./275") = 0 [pid 4999] mkdir("./276", 0777./strace-static-x86_64: Process 9808 attached ) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 9808] set_robust_list(0x555556b565e0, 24 [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) = 9809 [pid 9808] <... set_robust_list resumed>) = 0 [pid 9808] chdir("./276") = 0 [pid 9808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9808] setpgid(0, 0) = 0 [pid 9808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9808] write(3, "1000", 4) = 4 [pid 9808] close(3) = 0 [pid 9808] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9808] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9808] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 9809 attached ) = 0 [pid 9808] 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 9809] set_robust_list(0x555556b565e0, 24 [pid 9808] <... clone resumed>, parent_tid=[9810], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9810 [pid 9809] <... set_robust_list resumed>) = 0 [pid 9808] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9808] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9809] chdir("./276") = 0 [pid 9809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9809] setpgid(0, 0) = 0 [pid 9809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9805] 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 9809] write(3, "1000", 4) = 4 [pid 9809] close(3) = 0 ./strace-static-x86_64: Process 9810 attached [pid 9810] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9810] memfd_create("syzkaller", 0 [pid 9807] 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 9810] <... memfd_create resumed>) = 3 [pid 9810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9809] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9809] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9809] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9809] 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=[9811], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9811 [pid 9809] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9809] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9811 attached [pid 9805] <... write resumed>) = 4194304 [pid 9811] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9811] memfd_create("syzkaller", 0) = 3 [pid 9811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9805] munmap(0x7f38d9778000, 4194304) = 0 [pid 9811] 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 9805] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9805] ioctl(4, LOOP_SET_FD, 3 [pid 9810] 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 9807] <... write resumed>) = 4194304 [pid 9807] munmap(0x7f38d9778000, 4194304) = 0 [pid 9807] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9805] <... ioctl resumed>) = 0 [pid 9805] close(3) = 0 [pid 9807] ioctl(4, LOOP_SET_FD, 3 [pid 9805] mkdir("./file0", 0777) = 0 [pid 9805] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9807] <... ioctl resumed>) = 0 [pid 9807] close(3 [pid 9811] <... write resumed>) = 4194304 [pid 9807] <... close resumed>) = 0 [pid 9807] mkdir("./file0", 0777) = 0 [pid 9811] munmap(0x7f38d9778000, 4194304 [pid 9810] <... write resumed>) = 4194304 [ 275.786933][ T9805] loop5: detected capacity change from 0 to 8192 [ 275.803710][ T9807] loop2: detected capacity change from 0 to 8192 [ 275.813698][ T9805] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.828085][ T9805] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 9807] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9811] <... munmap resumed>) = 0 [pid 9810] munmap(0x7f38d9778000, 4194304) = 0 [pid 9810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9811] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9810] ioctl(4, LOOP_SET_FD, 3 [pid 9811] ioctl(4, LOOP_SET_FD, 3 [pid 9810] <... ioctl resumed>) = 0 [pid 9810] close(3) = 0 [pid 9810] mkdir("./file0", 0777) = 0 [ 275.837928][ T9805] REISERFS (device loop5): using ordered data mode [ 275.843451][ T9810] loop0: detected capacity change from 0 to 8192 [ 275.845270][ T9805] reiserfs: using flush barriers [ 275.852072][ T9811] loop1: detected capacity change from 0 to 8192 [ 275.860114][ T9805] 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 9810] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9811] <... ioctl resumed>) = 0 [pid 9811] close(3) = 0 [pid 9811] mkdir("./file0", 0777) = 0 [ 275.863417][ T9807] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.879889][ T9810] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.892260][ T9807] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 275.905537][ T9805] REISERFS (device loop5): checking transaction log (loop5) [ 275.914124][ T9807] REISERFS (device loop2): using ordered data mode [ 275.928291][ T9807] reiserfs: using flush barriers [ 275.935067][ T9810] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 275.935370][ T9811] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 275.944587][ T9810] REISERFS (device loop0): using ordered data mode [ 275.958786][ T9807] 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 [ 275.964266][ T9810] reiserfs: using flush barriers [ 275.965079][ T9810] 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 [ 275.981647][ T9811] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 275.985878][ T9810] REISERFS (device loop0): checking transaction log (loop0) [ 276.003594][ T9811] REISERFS (device loop1): using ordered data mode [ 276.011461][ T9807] REISERFS (device loop2): checking transaction log (loop2) [ 276.019490][ T9811] reiserfs: using flush barriers [ 276.025410][ T9810] REISERFS (device loop0): Using r5 hash to sort names [ 276.033019][ T9807] REISERFS (device loop2): Using r5 hash to sort names [ 276.037383][ T9805] REISERFS (device loop5): Using r5 hash to sort names [ 276.044313][ T9807] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.052280][ T9805] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.058076][ T9810] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.071349][ T9811] 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 [ 276.083217][ T9810] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 276.122352][ T9807] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9811] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9810] <... mount resumed>) = 0 [pid 9807] <... mount resumed>) = 0 [pid 9807] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9807] chdir("./file0") = 0 [pid 9807] ioctl(4, LOOP_CLR_FD) = 0 [pid 9807] close(4 [pid 9810] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9805] <... mount resumed>) = 0 [pid 9810] <... openat resumed>) = 3 [pid 9805] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9810] chdir("./file0" [pid 9805] <... openat resumed>) = 3 [pid 9810] <... chdir resumed>) = 0 [pid 9805] chdir("./file0" [pid 9810] ioctl(4, LOOP_CLR_FD [pid 9805] <... chdir resumed>) = 0 [pid 9810] <... ioctl resumed>) = 0 [pid 9805] ioctl(4, LOOP_CLR_FD [pid 9810] close(4 [pid 9805] <... ioctl resumed>) = 0 [pid 9810] <... close resumed>) = 0 [pid 9805] close(4 [pid 9810] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9805] <... close resumed>) = 0 [pid 9810] <... futex resumed>) = 1 [pid 9808] <... futex resumed>) = 0 [pid 9810] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9808] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9805] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9810] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9808] <... futex resumed>) = 0 [pid 9805] <... futex resumed>) = 1 [pid 9804] <... futex resumed>) = 0 [pid 9808] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9804] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9804] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9807] <... close resumed>) = 0 [pid 9807] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9807] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9810] mkdir("./file1", 000 [pid 9806] <... futex resumed>) = 0 [pid 9810] <... mkdir resumed>) = 0 [pid 9806] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9810] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9806] <... futex resumed>) = 1 [pid 9810] <... futex resumed>) = 1 [pid 9808] <... futex resumed>) = 0 [pid 9807] <... futex resumed>) = 0 [pid 9806] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9805] mkdir("./file1", 000 [pid 9810] mkdir("./bus", 000 [pid 9808] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9807] mkdir("./file1", 000 [pid 9805] <... mkdir resumed>) = 0 [pid 9810] <... mkdir resumed>) = 0 [pid 9808] <... futex resumed>) = 0 [pid 9807] <... mkdir resumed>) = 0 [pid 9810] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9808] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9807] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9805] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9807] <... futex resumed>) = 1 [pid 9808] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9807] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9808] <... futex resumed>) = 0 [pid 9808] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9810] <... futex resumed>) = 1 [pid 9808] <... futex resumed>) = 0 [pid 9806] <... futex resumed>) = 0 [pid 9805] <... futex resumed>) = 1 [pid 9804] <... futex resumed>) = 0 [pid 9810] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9808] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=45000000} [pid 9806] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9805] mkdir("./bus", 000 [pid 9804] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9804] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9807] <... futex resumed>) = 0 [pid 9806] <... futex resumed>) = 1 [pid 9805] <... mkdir resumed>) = 0 [pid 9807] mkdir("./bus", 000) = 0 [pid 9807] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 276.122726][ T9805] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 276.151796][ T9811] REISERFS (device loop1): checking transaction log (loop1) [ 276.163807][ T9811] REISERFS (device loop1): Using r5 hash to sort names [ 276.173660][ T9810] overlayfs: upper fs needs to support d_type. [pid 9807] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9806] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9805] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9806] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9805] <... futex resumed>) = 1 [pid 9804] <... futex resumed>) = 0 [pid 9806] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9805] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9804] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9806] <... futex resumed>) = 1 [pid 9807] <... futex resumed>) = 0 [pid 9807] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9806] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9804] <... futex resumed>) = 0 [pid 9804] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9808] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9808] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9808] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9808] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9808] 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=[9816], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9816 [pid 9808] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 276.175508][ T9811] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.198035][ T9805] overlayfs: upper fs needs to support d_type. [ 276.198080][ T9807] overlayfs: upper fs needs to support d_type. [ 276.204296][ T9805] overlayfs: upper fs does not support tmpfile. [ 276.211504][ T9807] overlayfs: upper fs does not support tmpfile. [ 276.224068][ T9810] overlayfs: upper fs does not support tmpfile. [ 276.226984][ T9811] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9808] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9816 attached [pid 9816] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9816] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9816] 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 9806] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9806] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9816] <... mount resumed>) = 0 [pid 9811] <... mount resumed>) = 0 [pid 9806] <... mmap resumed>) = 0x7f38d9b57000 [pid 9804] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9816] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9811] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9806] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9804] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9816] <... openat resumed>) = 4 [pid 9811] <... openat resumed>) = 3 [pid 9806] <... mprotect resumed>) = 0 [pid 9804] <... futex resumed>) = 0 [pid 9816] chdir("." [pid 9811] chdir("./file0" [pid 9806] 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 9804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9816] <... chdir resumed>) = 0 [pid 9811] <... chdir resumed>) = 0 [pid 9816] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9811] ioctl(4, LOOP_CLR_FD [pid 9816] <... futex resumed>) = 1 [pid 9811] <... ioctl resumed>) = 0 [pid 9808] <... futex resumed>) = 0 [pid 9806] <... clone resumed>, parent_tid=[9817], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9817 [pid 9804] <... mmap resumed>) = 0x7f38d9b57000 [pid 9816] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9811] close(4 [pid 9806] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9804] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9811] <... close resumed>) = 0 [pid 9811] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9809] <... futex resumed>) = 0 [pid 9811] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9809] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9809] <... futex resumed>) = 0 [pid 9811] mkdir("./file1", 000 [pid 9809] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9811] <... mkdir resumed>) = 0 [pid 9811] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9809] <... futex resumed>) = 0 [pid 9811] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9809] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9809] <... futex resumed>) = 0 [pid 9811] mkdir("./bus", 000 [pid 9809] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9811] <... mkdir resumed>) = 0 [pid 9811] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9809] <... futex resumed>) = 0 [pid 9811] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9809] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9809] <... futex resumed>) = 0 [pid 9811] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 276.233127][ T9810] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 276.242348][ T9807] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 276.247725][ T9805] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 276.255712][ T9807] overlayfs: failed to resolve './file0': -2 [pid 9809] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9806] <... futex resumed>) = 0 [pid 9804] <... mprotect resumed>) = 0 [pid 9806] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9804] 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=[9818], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9818 [pid 9804] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9804] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9807] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9807] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9807] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9818 attached ./strace-static-x86_64: Process 9817 attached [pid 9818] set_robust_list(0x7f38d9b779e0, 24 [pid 9817] set_robust_list(0x7f38d9b779e0, 24 [pid 9818] <... set_robust_list resumed>) = 0 [pid 9817] <... set_robust_list resumed>) = 0 [pid 9818] mkdir(".", 0777 [pid 9817] mkdir(".", 0777 [pid 9818] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9817] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9818] 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 9817] 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 9810] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9817] <... mount resumed>) = 0 [pid 9817] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9818] <... mount resumed>) = 0 [pid 9818] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9817] <... openat resumed>) = 4 [pid 9810] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9818] <... openat resumed>) = 4 [pid 9817] chdir("." [pid 9810] <... futex resumed>) = 0 [pid 9808] exit_group(0 [pid 9818] chdir("." [pid 9817] <... chdir resumed>) = 0 [pid 9816] <... futex resumed>) = ? [pid 9808] <... exit_group resumed>) = ? [pid 9818] <... chdir resumed>) = 0 [pid 9817] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9818] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9817] <... futex resumed>) = 1 [pid 9806] <... futex resumed>) = 0 [pid 9818] <... futex resumed>) = 1 [pid 9817] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9806] exit_group(0 [pid 9804] <... futex resumed>) = 0 [pid 9818] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9817] <... futex resumed>) = ? [pid 9806] <... exit_group resumed>) = ? [pid 9817] +++ exited with 0 +++ [pid 9816] +++ exited with 0 +++ [ 276.290077][ T9811] overlayfs: upper fs needs to support d_type. [ 276.299289][ T9810] overlayfs: failed to resolve './file0': -2 [ 276.306629][ T9811] overlayfs: upper fs does not support tmpfile. [ 276.307871][ T9805] overlayfs: failed to resolve './file0': -2 [ 276.314498][ T9811] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9810] +++ exited with 0 +++ [pid 9808] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9808, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 9807] <... futex resumed>) = ? [pid 4998] umount2("./276", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./276", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9807] +++ exited with 0 +++ [pid 9806] +++ exited with 0 +++ [pid 4998] fstat(3, [pid 9805] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9809] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9805] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9806, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4998] getdents64(3, [pid 9809] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9805] <... futex resumed>) = 0 [pid 5000] umount2("./277", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9809] <... futex resumed>) = 0 [pid 9805] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./276/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9804] exit_group(0 [pid 5000] openat(AT_FDCWD, "./277", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9818] <... futex resumed>) = ? [pid 9809] <... mmap resumed>) = 0x7f38d9b57000 [pid 9805] <... futex resumed>) = ? [pid 9804] <... exit_group resumed>) = ? [pid 5000] <... openat resumed>) = 3 [pid 4998] lstat("./276/binderfs", [pid 9818] +++ exited with 0 +++ [pid 9811] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9809] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9805] +++ exited with 0 +++ [pid 9811] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9809] <... mprotect resumed>) = 0 [pid 9804] +++ exited with 0 +++ [pid 5000] fstat(3, [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9811] <... futex resumed>) = 0 [pid 9809] 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] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9804, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] unlink("./276/binderfs"./strace-static-x86_64: Process 9819 attached [pid 9811] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] getdents64(3, [pid 9809] <... clone resumed>, parent_tid=[9819], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9819 [pid 4998] <... unlink resumed>) = 0 [pid 9809] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9809] <... futex resumed>) = 0 [pid 5000] umount2("./277/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9809] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9819] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9819] mkdir(".", 0777 [pid 5000] lstat("./277/binderfs", [pid 9819] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9819] 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 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./277/binderfs") = 0 [pid 5003] umount2("./276", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./276", 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("./276/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./276/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./276/binderfs") = 0 [ 276.337318][ T9811] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9819] <... mount resumed>) = 0 [pid 9819] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9819] chdir(".") = 0 [pid 9819] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9809] <... futex resumed>) = 0 [pid 9819] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9809] exit_group(0 [pid 9819] <... futex resumed>) = ? [pid 9811] <... futex resumed>) = ? [pid 9809] <... exit_group resumed>) = ? [pid 9811] +++ exited with 0 +++ [pid 9819] +++ exited with 0 +++ [pid 9809] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9809, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] umount2("./276", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./276", 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("./276/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./276/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./276/binderfs") = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./276/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./276/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("./276/file0") = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./276") = 0 [pid 5000] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./277/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./277/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] mkdir("./277", 0777) = 0 [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("./277/file0") = 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 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./277") = 0 [pid 5000] mkdir("./278", 0777) = 0 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9820 [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) = 9821 ./strace-static-x86_64: Process 9820 attached [pid 9820] set_robust_list(0x555556b565e0, 24) = 0 [pid 9820] chdir("./277") = 0 [pid 9820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9820] setpgid(0, 0) = 0 [pid 9820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9820] write(3, "1000", 4) = 4 [pid 9820] close(3) = 0 [pid 9820] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9820] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9820] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9820] 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=[9822], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9822 [pid 9820] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9820] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9821 attached [pid 9821] set_robust_list(0x555556b565e0, 24) = 0 [pid 9821] chdir("./278") = 0 [pid 9821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9821] setpgid(0, 0) = 0 [pid 9821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9821] write(3, "1000", 4) = 4 [pid 9821] close(3) = 0 [pid 9821] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9821] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9821] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9821] 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=[9823], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9823 [pid 9821] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9821] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9823 attached [pid 9823] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9823] memfd_create("syzkaller", 0) = 3 [pid 9823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9822 attached [pid 9822] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9822] memfd_create("syzkaller", 0) = 3 [pid 9822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./276/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./276/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9823] 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] 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("./276/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./276") = 0 [pid 5003] mkdir("./277", 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 9822] 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 4999] <... umount2 resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4999] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9823] <... write resumed>) = 4194304 [pid 9823] munmap(0x7f38d9778000, 4194304) = 0 [pid 9823] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9823] ioctl(4, LOOP_SET_FD, 3 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9824 [pid 4999] lstat("./276/file0", ./strace-static-x86_64: Process 9824 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9824] set_robust_list(0x555556b565e0, 24) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./276/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9824] chdir("./277" [pid 4999] <... openat resumed>) = 4 [pid 9824] <... chdir resumed>) = 0 [pid 9824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9824] setpgid(0, 0) = 0 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4999] close(4) = 0 [pid 4999] rmdir("./276/file0") = 0 [pid 9824] <... openat resumed>) = 3 [pid 9824] write(3, "1000", 4) = 4 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 4999] rmdir("./276" [pid 9824] close(3) = 0 [pid 9824] symlink("/dev/binderfs", "./binderfs" [pid 4999] <... rmdir resumed>) = 0 [pid 4999] mkdir("./277", 0777 [pid 9824] <... symlink resumed>) = 0 [pid 9824] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... mkdir resumed>) = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9824] <... futex resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] close(3) = 0 [pid 9824] <... mmap resumed>) = 0x7f38e1b78000 [pid 9824] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9824] 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=[9825], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9825 [pid 9824] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9824] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9823] <... ioctl resumed>) = 0 [pid 9823] close(3) = 0 [pid 9823] mkdir("./file0", 0777) = 0 [pid 9823] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9827 [pid 9822] <... write resumed>) = 4194304 [pid 9822] munmap(0x7f38d9778000, 4194304./strace-static-x86_64: Process 9827 attached ./strace-static-x86_64: Process 9825 attached [pid 9827] set_robust_list(0x555556b565e0, 24 [pid 9825] set_robust_list(0x7f38e1b989e0, 24 [pid 9827] <... set_robust_list resumed>) = 0 [pid 9825] <... set_robust_list resumed>) = 0 [pid 9827] chdir("./277" [pid 9825] memfd_create("syzkaller", 0 [pid 9822] <... munmap resumed>) = 0 [pid 9827] <... chdir resumed>) = 0 [pid 9827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9827] setpgid(0, 0) = 0 [pid 9827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9827] write(3, "1000", 4) = 4 [pid 9827] close(3) = 0 [pid 9827] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9827] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9827] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9827] 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=[9828], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9828 [pid 9827] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9827] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9825] <... memfd_create resumed>) = 3 [pid 9825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9822] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9828 attached [ 276.536419][ T9823] loop2: detected capacity change from 0 to 8192 [ 276.566625][ T9823] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9828] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9828] memfd_create("syzkaller", 0) = 3 [pid 9828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9822] <... ioctl resumed>) = 0 [pid 9822] close(3) = 0 [pid 9822] mkdir("./file0", 0777) = 0 [pid 9822] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 276.581969][ T9823] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 276.582531][ T9822] loop0: detected capacity change from 0 to 8192 [ 276.591607][ T9823] REISERFS (device loop2): using ordered data mode [ 276.604621][ T9823] reiserfs: using flush barriers [ 276.618860][ T9823] 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 9825] 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 9828] 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 9825] <... write resumed>) = 4194304 [pid 9825] munmap(0x7f38d9778000, 4194304) = 0 [pid 9825] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 276.633548][ T9822] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 276.645942][ T9823] REISERFS (device loop2): checking transaction log (loop2) [ 276.657987][ T9823] REISERFS (device loop2): Using r5 hash to sort names [ 276.665642][ T9822] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9825] ioctl(4, LOOP_SET_FD, 3 [pid 9828] <... write resumed>) = 4194304 [pid 9825] <... ioctl resumed>) = 0 [pid 9825] close(3) = 0 [pid 9825] mkdir("./file0", 0777) = 0 [pid 9825] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9828] munmap(0x7f38d9778000, 4194304 [pid 9823] <... mount resumed>) = 0 [pid 9828] <... munmap resumed>) = 0 [pid 9828] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9828] ioctl(4, LOOP_SET_FD, 3 [pid 9823] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9823] chdir("./file0") = 0 [pid 9823] ioctl(4, LOOP_CLR_FD) = 0 [pid 9823] close(4) = 0 [pid 9823] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9821] <... futex resumed>) = 0 [pid 9821] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9821] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9823] <... futex resumed>) = 1 [pid 9823] mkdir("./file1", 000) = 0 [pid 9823] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9821] <... futex resumed>) = 0 [pid 9821] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9821] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9823] <... futex resumed>) = 1 [pid 9823] mkdir("./bus", 000) = 0 [pid 9823] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9821] <... futex resumed>) = 0 [pid 9821] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9821] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9823] <... futex resumed>) = 1 [pid 9823] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9828] <... ioctl resumed>) = 0 [pid 9828] close(3) = 0 [pid 9828] mkdir("./file0", 0777) = 0 [ 276.675144][ T9823] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.687355][ T9825] loop5: detected capacity change from 0 to 8192 [ 276.694951][ T9822] REISERFS (device loop0): using ordered data mode [ 276.696785][ T9823] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 276.705646][ T9822] reiserfs: using flush barriers [ 276.713689][ T9828] loop1: detected capacity change from 0 to 8192 [ 276.715961][ T9825] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 276.736787][ T9825] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 276.746183][ T9822] 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 [ 276.746676][ T9823] overlayfs: upper fs needs to support d_type. [ 276.763267][ T9822] REISERFS (device loop0): checking transaction log (loop0) [ 276.769655][ T9823] overlayfs: upper fs does not support tmpfile. [pid 9828] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9821] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9821] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9821] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9821] 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=[9832], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9832 [pid 9821] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 276.776077][ T9828] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 276.785708][ T9823] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 276.804257][ T9823] overlayfs: failed to resolve './file0': -2 [ 276.806445][ T9825] REISERFS (device loop5): using ordered data mode [ 276.811404][ T9828] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 276.817396][ T9822] REISERFS (device loop0): Using r5 hash to sort names [pid 9821] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9832 attached [pid 9832] set_robust_list(0x7f38d9b779e0, 24 [pid 9823] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9823] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9823] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9832] <... set_robust_list resumed>) = 0 [pid 9832] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9832] 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 9832] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9832] chdir(".") = 0 [ 276.826653][ T9828] REISERFS (device loop1): using ordered data mode [ 276.832795][ T9825] reiserfs: using flush barriers [ 276.840221][ T9828] reiserfs: using flush barriers [ 276.845004][ T9822] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.862012][ T9828] 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 9832] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9822] <... mount resumed>) = 0 [pid 9832] <... futex resumed>) = 1 [pid 9822] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9821] <... futex resumed>) = 0 [pid 9832] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9822] <... openat resumed>) = 3 [pid 9822] chdir("./file0") = 0 [pid 9822] ioctl(4, LOOP_CLR_FD) = 0 [pid 9822] close(4) = 0 [pid 9821] exit_group(0 [pid 9822] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9822] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9832] <... futex resumed>) = ? [pid 9821] <... exit_group resumed>) = ? [pid 9832] +++ exited with 0 +++ [pid 9820] <... futex resumed>) = 0 [pid 9820] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9822] <... futex resumed>) = 0 [pid 9820] <... futex resumed>) = 1 [pid 9822] mkdir("./file1", 000 [pid 9820] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9822] <... mkdir resumed>) = 0 [pid 9822] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9820] <... futex resumed>) = 0 [pid 9822] mkdir("./bus", 000 [pid 9820] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9822] <... mkdir resumed>) = 0 [pid 9820] <... futex resumed>) = 0 [pid 9822] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9820] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9822] <... futex resumed>) = 0 [pid 9820] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9822] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9820] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 276.878267][ T9825] 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 [ 276.894573][ T9822] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 276.895089][ T9828] REISERFS (device loop1): checking transaction log (loop1) [ 276.904271][ T9825] REISERFS (device loop5): checking transaction log (loop5) [ 276.912650][ T9828] REISERFS (device loop1): Using r5 hash to sort names [pid 9820] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9828] <... mount resumed>) = 0 [pid 9823] <... futex resumed>) = ? [pid 9823] +++ exited with 0 +++ [pid 9821] +++ exited with 0 +++ [pid 9828] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9828] chdir("./file0") = 0 [pid 9828] ioctl(4, LOOP_CLR_FD) = 0 [pid 9828] close(4) = 0 [pid 9828] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9828] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9821, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] umount2("./278", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./278", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, [pid 9827] <... futex resumed>) = 0 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9827] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9828] <... futex resumed>) = 0 [pid 9827] <... futex resumed>) = 1 [pid 5000] getdents64(3, [pid 9828] mkdir("./file1", 000 [pid 9827] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9828] <... mkdir resumed>) = 0 [pid 5000] umount2("./278/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9828] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9828] <... futex resumed>) = 1 [pid 9827] <... futex resumed>) = 0 [pid 5000] lstat("./278/binderfs", [pid 9828] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9827] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9827] <... futex resumed>) = 0 [pid 5000] unlink("./278/binderfs" [pid 9828] mkdir("./bus", 000 [pid 9827] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9828] <... mkdir resumed>) = 0 [pid 5000] <... unlink resumed>) = 0 [ 276.925991][ T9828] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.938520][ T9822] overlayfs: upper fs needs to support d_type. [ 276.939565][ T9828] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 276.945818][ T9822] overlayfs: upper fs does not support tmpfile. [ 276.968901][ T9825] REISERFS (device loop5): Using r5 hash to sort names [ 276.969835][ T9822] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9828] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9828] <... futex resumed>) = 1 [pid 9827] <... futex resumed>) = 0 [pid 9820] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9828] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9827] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9820] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9827] <... futex resumed>) = 0 [pid 9820] <... futex resumed>) = 0 [pid 9828] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9827] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9820] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9825] <... mount resumed>) = 0 [pid 9820] <... mmap resumed>) = 0x7f38d9b57000 [pid 9820] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9820] 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=[9833], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9833 [pid 9820] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9820] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9825] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9822] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9825] <... openat resumed>) = 3 [pid 9825] chdir("./file0" [pid 9822] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9825] <... chdir resumed>) = 0 [pid 9825] ioctl(4, LOOP_CLR_FD [pid 9822] <... futex resumed>) = 0 [pid 9825] <... ioctl resumed>) = 0 [pid 9825] close(4 [pid 9822] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9825] <... close resumed>) = 0 [pid 9825] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9824] <... futex resumed>) = 0 [pid 9825] mkdir("./file1", 000 [pid 9824] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9825] <... mkdir resumed>) = 0 [pid 9824] <... futex resumed>) = 0 [pid 9825] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9824] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9825] <... futex resumed>) = 0 [pid 9824] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9825] mkdir("./bus", 000 [pid 9824] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9825] <... mkdir resumed>) = 0 [pid 9824] <... futex resumed>) = 0 [pid 9825] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9824] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9825] <... futex resumed>) = 0 [pid 9824] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9825] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9824] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 276.976694][ T9825] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 276.984474][ T9822] overlayfs: failed to resolve './file0': -2 [ 277.002521][ T9825] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 277.013400][ T9828] overlayfs: upper fs needs to support d_type. [ 277.027312][ T9828] overlayfs: upper fs does not support tmpfile. [pid 9824] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9827] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9827] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9827] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9827] 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=[9834], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9834 [pid 9827] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9827] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9833 attached [pid 9828] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9828] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9828] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9833] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9833] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9833] 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 9834 attached [pid 9834] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9834] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9834] 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 9824] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9824] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9824] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9824] 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=[9835], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9835 [pid 9824] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9824] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9833] <... mount resumed>) = 0 [pid 9833] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9833] chdir(".") = 0 [pid 9833] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9820] <... futex resumed>) = 0 [pid 9820] exit_group(0 [pid 9822] <... futex resumed>) = ? [pid 9820] <... exit_group resumed>) = ? [pid 9822] +++ exited with 0 +++ [pid 9833] <... futex resumed>) = ? [pid 9833] +++ exited with 0 +++ [pid 9820] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9820, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./277", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./277", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 277.029447][ T9825] overlayfs: upper fs needs to support d_type. [ 277.034593][ T9828] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 277.049835][ T9828] overlayfs: failed to resolve './file0': -2 [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9834] <... mount resumed>) = 0 [pid 4998] umount2("./277/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9834] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9834] <... openat resumed>) = 4 [pid 4998] lstat("./277/binderfs", [pid 9834] chdir("." [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9834] <... chdir resumed>) = 0 [pid 4998] unlink("./277/binderfs" [pid 9834] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... unlink resumed>) = 0 [pid 9834] <... futex resumed>) = 1 [pid 9827] <... futex resumed>) = 0 [pid 4998] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9834] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9827] exit_group(0 [pid 9834] <... futex resumed>) = ? [pid 9828] <... futex resumed>) = ? [pid 9827] <... exit_group resumed>) = ? [pid 9834] +++ exited with 0 +++ [pid 9828] +++ exited with 0 +++ [pid 9827] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9827, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- ./strace-static-x86_64: Process 9835 attached [pid 9835] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9835] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9835] 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("./277", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./277", 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, [pid 5000] <... umount2 resumed>) = 0 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./277/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./277/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./277/binderfs") = 0 [pid 4999] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9835] <... mount resumed>) = 0 [pid 9835] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9835] chdir(".") = 0 [pid 9835] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9824] <... futex resumed>) = 0 [pid 9835] <... futex resumed>) = 1 [pid 9835] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./278/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./278/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("./278/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./278") = 0 [ 277.096140][ T9825] overlayfs: upper fs does not support tmpfile. [ 277.113716][ T9825] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5000] mkdir("./279", 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) = 9836 [pid 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./277/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./277/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("./277/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./277") = 0 ./strace-static-x86_64: Process 9836 attached [pid 4998] mkdir("./278", 0777 [pid 9836] set_robust_list(0x555556b565e0, 24) = 0 [pid 4998] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD [pid 9836] chdir("./279") = 0 [pid 9836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9836] <... prctl resumed>) = 0 [pid 9836] setpgid(0, 0) = 0 [pid 9836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9837 ./strace-static-x86_64: Process 9837 attached [pid 9837] set_robust_list(0x555556b565e0, 24 [pid 9836] <... openat resumed>) = 3 [pid 9836] write(3, "1000", 4) = 4 [pid 9836] close(3) = 0 [pid 9836] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9836] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9836] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9836] 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=[9838], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9838 [pid 9836] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9836] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9837] <... set_robust_list resumed>) = 0 [pid 9837] chdir("./278") = 0 [pid 9837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 9838 attached [pid 9825] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9838] set_robust_list(0x7f38e1b989e0, 24 [pid 9825] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9838] <... set_robust_list resumed>) = 0 [pid 9825] <... futex resumed>) = 0 [pid 9825] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9838] memfd_create("syzkaller", 0) = 3 [pid 9824] exit_group(0 [pid 9838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9835] <... futex resumed>) = ? [ 277.138661][ T9825] overlayfs: failed to resolve './file0': -2 [pid 9825] <... futex resumed>) = ? [pid 9824] <... exit_group resumed>) = ? [pid 9838] <... mmap resumed>) = 0x7f38d9778000 [pid 9837] setpgid(0, 0 [pid 9835] +++ exited with 0 +++ [pid 9825] +++ exited with 0 +++ [pid 9824] +++ exited with 0 +++ [pid 4999] <... umount2 resumed>) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9824, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 9837] <... setpgid resumed>) = 0 [pid 9837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5003] umount2("./277", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./277", 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, [pid 4999] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9837] <... openat resumed>) = 3 [pid 5003] umount2("./277/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9837] write(3, "1000", 4 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9837] <... write resumed>) = 4 [pid 5003] lstat("./277/binderfs", [pid 9837] close(3 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9837] <... close resumed>) = 0 [pid 5003] unlink("./277/binderfs" [pid 9837] symlink("/dev/binderfs", "./binderfs" [pid 5003] <... unlink resumed>) = 0 [pid 9837] <... symlink resumed>) = 0 [pid 5003] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9838] 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 9837] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9837] <... futex resumed>) = 0 [pid 4999] lstat("./277/file0", [pid 9837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9837] <... mmap resumed>) = 0x7f38e1b78000 [pid 4999] openat(AT_FDCWD, "./277/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9837] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 4999] <... openat resumed>) = 4 [pid 4999] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9837] <... mprotect resumed>) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9837] 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] close(4) = 0 [pid 4999] rmdir("./277/file0" [pid 9837] <... clone resumed>, parent_tid=[9839], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9839 [pid 4999] <... rmdir resumed>) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3 [pid 9837] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... close resumed>) = 0 [pid 4999] rmdir("./277" [pid 9837] <... futex resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9837] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] mkdir("./278", 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./strace-static-x86_64: Process 9839 attached [pid 5003] <... umount2 resumed>) = 0 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9839] set_robust_list(0x7f38e1b989e0, 24 [pid 5003] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9840 [pid 9839] <... set_robust_list resumed>) = 0 [pid 9839] memfd_create("syzkaller", 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9839] <... memfd_create resumed>) = 3 [pid 5003] lstat("./277/file0", [pid 9839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9840 attached [pid 9840] set_robust_list(0x555556b565e0, 24) = 0 [pid 9840] chdir("./278") = 0 [pid 9840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9840] setpgid(0, 0) = 0 [pid 9840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9840] write(3, "1000", 4) = 4 [pid 9840] close(3) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9840] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9840] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9840] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] openat(AT_FDCWD, "./277/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9840] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9840] 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] <... openat resumed>) = 4 [pid 5003] fstat(4, [pid 9840] <... clone resumed>, parent_tid=[9841], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9841 [pid 9840] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9840] <... futex resumed>) = 0 [pid 9840] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9841 attached [pid 9841] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 5003] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9841] memfd_create("syzkaller", 0) = 3 [pid 9841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./277/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./277") = 0 [pid 5003] mkdir("./278", 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) = 9842 ./strace-static-x86_64: Process 9842 attached [pid 9842] set_robust_list(0x555556b565e0, 24) = 0 [pid 9842] chdir("./278") = 0 [pid 9842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9842] setpgid(0, 0) = 0 [pid 9842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9842] write(3, "1000", 4) = 4 [pid 9842] close(3) = 0 [pid 9842] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9842] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9842] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9841] 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 9842] 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=[9843], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9843 [pid 9842] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9842] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9839] 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 9843 attached [pid 9843] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9843] memfd_create("syzkaller", 0) = 3 [pid 9838] <... write resumed>) = 4194304 [pid 9843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9838] munmap(0x7f38d9778000, 4194304 [pid 9843] <... mmap resumed>) = 0x7f38d9778000 [pid 9838] <... munmap resumed>) = 0 [pid 9838] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9838] close(3) = 0 [pid 9838] mkdir("./file0", 0777) = 0 [pid 9838] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9841] <... write resumed>) = 4194304 [pid 9841] munmap(0x7f38d9778000, 4194304 [pid 9843] 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 9841] <... munmap resumed>) = 0 [pid 9841] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 277.330698][ T9838] loop2: detected capacity change from 0 to 8192 [ 277.362956][ T9838] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9841] ioctl(4, LOOP_SET_FD, 3 [pid 9839] <... write resumed>) = 4194304 [pid 9839] munmap(0x7f38d9778000, 4194304 [pid 9841] <... ioctl resumed>) = 0 [pid 9841] close(3) = 0 [pid 9841] mkdir("./file0", 0777) = 0 [pid 9841] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9839] <... munmap resumed>) = 0 [pid 9839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9839] ioctl(4, LOOP_SET_FD, 3 [pid 9843] <... write resumed>) = 4194304 [pid 9843] munmap(0x7f38d9778000, 4194304) = 0 [pid 9843] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 277.381389][ T9841] loop1: detected capacity change from 0 to 8192 [ 277.390327][ T9838] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 277.401076][ T9841] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 277.401260][ T9839] loop0: detected capacity change from 0 to 8192 [ 277.420859][ T9838] REISERFS (device loop2): using ordered data mode [pid 9843] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9843] close(3) = 0 [pid 9843] mkdir("./file0", 0777) = 0 [pid 9843] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9839] <... ioctl resumed>) = 0 [pid 9839] close(3) = 0 [pid 9839] mkdir("./file0", 0777) = 0 [ 277.425631][ T9843] loop5: detected capacity change from 0 to 8192 [ 277.427796][ T9841] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 277.437463][ T9838] reiserfs: using flush barriers [ 277.444208][ T9841] REISERFS (device loop1): using ordered data mode [ 277.455058][ T9841] reiserfs: using flush barriers [ 277.455941][ T9843] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 277.473182][ T9841] 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 [ 277.474247][ T9839] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 277.489373][ T9843] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 277.502501][ T9838] 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 [ 277.511789][ T9843] REISERFS (device loop5): using ordered data mode [ 277.529368][ T9841] REISERFS (device loop1): checking transaction log (loop1) [ 277.534452][ T9843] reiserfs: using flush barriers [ 277.542613][ T9839] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 277.547748][ T9838] REISERFS (device loop2): checking transaction log (loop2) [ 277.556711][ T9839] REISERFS (device loop0): using ordered data mode [ 277.563187][ T9843] 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 [ 277.569880][ T9839] reiserfs: using flush barriers [ 277.592063][ T9843] REISERFS (device loop5): checking transaction log (loop5) [ 277.592239][ T9838] REISERFS (device loop2): Using r5 hash to sort names [ 277.599397][ T9839] 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 [ 277.606559][ T9841] REISERFS (device loop1): Using r5 hash to sort names [pid 9839] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9838] <... mount resumed>) = 0 [ 277.622577][ T9839] REISERFS (device loop0): checking transaction log (loop0) [ 277.636969][ T9838] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 277.638076][ T9843] REISERFS (device loop5): Using r5 hash to sort names [ 277.649765][ T9838] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 277.665547][ T9839] REISERFS (device loop0): Using r5 hash to sort names [pid 9838] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9839] <... mount resumed>) = 0 [ 277.672979][ T9839] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 277.674110][ T9841] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 277.685894][ T9839] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 277.699960][ T9843] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 277.707682][ T9841] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9838] chdir("./file0" [pid 9841] <... mount resumed>) = 0 [pid 9839] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9838] <... chdir resumed>) = 0 [pid 9839] <... openat resumed>) = 3 [pid 9838] ioctl(4, LOOP_CLR_FD [pid 9839] chdir("./file0" [pid 9838] <... ioctl resumed>) = 0 [pid 9839] <... chdir resumed>) = 0 [pid 9838] close(4 [pid 9839] ioctl(4, LOOP_CLR_FD [pid 9838] <... close resumed>) = 0 [pid 9839] <... ioctl resumed>) = 0 [pid 9838] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9839] close(4 [pid 9838] <... futex resumed>) = 1 [pid 9836] <... futex resumed>) = 0 [pid 9839] <... close resumed>) = 0 [pid 9838] mkdir("./file1", 000 [pid 9836] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9839] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9838] <... mkdir resumed>) = 0 [pid 9836] <... futex resumed>) = 0 [pid 9839] <... futex resumed>) = 1 [pid 9838] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9836] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9839] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9838] <... futex resumed>) = 0 [pid 9836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9838] mkdir("./bus", 000 [pid 9836] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9838] <... mkdir resumed>) = 0 [pid 9836] <... futex resumed>) = 0 [pid 9838] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9836] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9838] <... futex resumed>) = 0 [pid 9836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9838] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9836] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9837] <... futex resumed>) = 0 [pid 9836] <... futex resumed>) = 0 [pid 9836] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9843] <... mount resumed>) = 0 [pid 9843] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9843] chdir("./file0") = 0 [pid 9843] ioctl(4, LOOP_CLR_FD) = 0 [pid 9843] close(4) = 0 [pid 9843] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9843] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9841] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9841] chdir("./file0") = 0 [pid 9841] ioctl(4, LOOP_CLR_FD) = 0 [pid 9841] close(4) = 0 [pid 9841] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9840] <... futex resumed>) = 0 [pid 9840] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9840] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9841] <... futex resumed>) = 1 [pid 9841] mkdir("./file1", 000) = 0 [pid 9841] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9840] <... futex resumed>) = 0 [pid 9840] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9840] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9841] <... futex resumed>) = 1 [pid 9841] mkdir("./bus", 000) = 0 [pid 9841] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9840] <... futex resumed>) = 0 [pid 9842] <... futex resumed>) = 0 [pid 9840] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9837] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9842] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9840] <... futex resumed>) = 0 [pid 9839] <... futex resumed>) = 0 [pid 9837] <... futex resumed>) = 1 [pid 9843] <... futex resumed>) = 0 [pid 9842] <... futex resumed>) = 1 [pid 9840] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9839] mkdir("./file1", 000 [pid 9843] mkdir("./file1", 000 [pid 9842] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9839] <... mkdir resumed>) = 0 [pid 9837] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9839] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9837] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9839] <... futex resumed>) = 0 [pid 9839] mkdir("./bus", 000 [pid 9837] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9839] <... mkdir resumed>) = 0 [pid 9839] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9837] <... futex resumed>) = 0 [pid 9839] <... futex resumed>) = 0 [pid 9839] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9837] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9837] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9839] <... futex resumed>) = 0 [pid 9837] <... futex resumed>) = 1 [pid 9839] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9837] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9843] <... mkdir resumed>) = 0 [pid 9841] <... futex resumed>) = 1 [pid 9841] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9843] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9842] <... futex resumed>) = 0 [pid 9842] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9843] mkdir("./bus", 000 [pid 9842] <... futex resumed>) = 0 [pid 9843] <... mkdir resumed>) = 0 [ 277.721257][ T9843] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 277.740801][ T9838] overlayfs: upper fs needs to support d_type. [ 277.752160][ T9839] overlayfs: upper fs needs to support d_type. [ 277.760223][ T9839] overlayfs: upper fs does not support tmpfile. [ 277.768067][ T9841] overlayfs: upper fs needs to support d_type. [ 277.774975][ T9838] overlayfs: upper fs does not support tmpfile. [pid 9842] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9843] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9842] <... futex resumed>) = 0 [pid 9843] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9842] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9842] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9836] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9836] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9836] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9836] 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 9840] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9836] <... clone resumed>, parent_tid=[9848], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9848 [pid 9840] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9836] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9840] <... futex resumed>) = 0 [pid 9836] <... futex resumed>) = 0 [pid 9840] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9836] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9840] <... mmap resumed>) = 0x7f38d9b57000 [pid 9840] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9840] 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=[9849], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9849 [pid 9840] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9840] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9849 attached [pid 9837] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 9848 attached [pid 9848] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9848] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9848] 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 9849] set_robust_list(0x7f38d9b779e0, 24 [pid 9837] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9837] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9837] 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=[9850], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9850 [pid 9837] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 277.775303][ T9841] overlayfs: upper fs does not support tmpfile. [ 277.789269][ T9839] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 277.789922][ T9843] overlayfs: upper fs needs to support d_type. [ 277.803503][ T9839] overlayfs: failed to resolve './file0': -2 [ 277.809138][ T9838] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 277.812242][ T9841] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 277.816864][ T9843] overlayfs: upper fs does not support tmpfile. [pid 9837] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9849] <... set_robust_list resumed>) = 0 [pid 9849] mkdir(".", 0777 [pid 9842] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 9850 attached [pid 9850] set_robust_list(0x7f38d9b779e0, 24 [pid 9849] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9842] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9849] 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 9842] <... futex resumed>) = 0 [pid 9842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9850] <... set_robust_list resumed>) = 0 [pid 9849] <... mount resumed>) = 0 [pid 9848] <... mount resumed>) = 0 [pid 9842] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9839] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9839] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9839] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9850] mkdir(".", 0777 [pid 9849] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9848] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9842] <... mprotect resumed>) = 0 [pid 9848] <... openat resumed>) = 4 [pid 9848] chdir("." [pid 9842] 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 9841] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9848] <... chdir resumed>) = 0 [pid 9842] <... clone resumed>, parent_tid=[9851], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9851 [pid 9841] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9841] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9851 attached [pid 9850] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9849] <... openat resumed>) = 4 [pid 9848] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9842] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9850] 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 9849] chdir("." [pid 9848] <... futex resumed>) = 1 [pid 9849] <... chdir resumed>) = 0 [pid 9842] <... futex resumed>) = 0 [pid 9836] <... futex resumed>) = 0 [pid 9849] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9848] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9842] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9849] <... futex resumed>) = 1 [pid 9840] <... futex resumed>) = 0 [pid 9849] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9840] exit_group(0 [pid 9849] <... futex resumed>) = ? [pid 9841] <... futex resumed>) = ? [pid 9840] <... exit_group resumed>) = ? [pid 9841] +++ exited with 0 +++ [pid 9849] +++ exited with 0 +++ [pid 9840] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9840, 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("./278", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./278", 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("./278/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9851] set_robust_list(0x7f38d9b779e0, 24 [pid 9850] <... mount resumed>) = 0 [pid 4999] lstat("./278/binderfs", [pid 9850] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./278/binderfs" [pid 9850] <... openat resumed>) = 4 [pid 4999] <... unlink resumed>) = 0 [pid 4999] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9851] <... set_robust_list resumed>) = 0 [pid 9850] chdir(".") = 0 [pid 9851] mkdir(".", 0777 [pid 9850] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9851] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9837] <... futex resumed>) = 0 [pid 9837] exit_group(0 [pid 9839] <... futex resumed>) = ? [pid 9837] <... exit_group resumed>) = ? [pid 9851] 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 9839] +++ exited with 0 +++ [pid 9851] <... mount resumed>) = 0 [pid 9850] +++ exited with 0 +++ [pid 9838] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9837] +++ exited with 0 +++ [pid 9851] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9838] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9843] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9837, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 9851] <... openat resumed>) = 4 [pid 9838] <... futex resumed>) = 0 [pid 9836] exit_group(0 [pid 9851] chdir("." [pid 9848] <... futex resumed>) = ? [pid 9843] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9836] <... exit_group resumed>) = ? [pid 9851] <... chdir resumed>) = 0 [pid 9848] +++ exited with 0 +++ [pid 9843] <... futex resumed>) = 0 [pid 9838] +++ exited with 0 +++ [pid 4998] umount2("./278", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9843] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./278", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, [pid 9836] +++ exited with 0 +++ [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9836, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 4998] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] umount2("./278/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9851] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./279", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9851] <... futex resumed>) = 1 [pid 9842] <... futex resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 277.828702][ T9841] overlayfs: failed to resolve './file0': -2 [ 277.849151][ T9843] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 277.853062][ T9838] overlayfs: failed to resolve './file0': -2 [ 277.858415][ T9843] overlayfs: failed to resolve './file0': -2 [pid 4998] lstat("./278/binderfs", [pid 9851] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9842] exit_group(0 [pid 5000] openat(AT_FDCWD, "./279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] unlink("./278/binderfs" [pid 9851] <... futex resumed>) = ? [pid 9843] <... futex resumed>) = ? [pid 9842] <... exit_group resumed>) = ? [pid 5000] fstat(3, [pid 4998] <... unlink resumed>) = 0 [pid 9843] +++ exited with 0 +++ [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./279/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./279/binderfs", [pid 9851] +++ exited with 0 +++ [pid 9842] +++ exited with 0 +++ [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9842, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5000] unlink("./279/binderfs" [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 5000] <... unlink resumed>) = 0 [pid 5003] <... restart_syscall resumed>) = 0 [pid 5000] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./278", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./278", 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("./278/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./278/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./278/binderfs") = 0 [pid 5003] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 4999] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./278/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 4999] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./278/file0", [pid 4999] openat(AT_FDCWD, "./278/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... openat resumed>) = 4 [pid 4998] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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, "./278/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] getdents64(4, [pid 4999] close(4) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4999] rmdir("./278/file0") = 0 [pid 4998] getdents64(4, [pid 4999] getdents64(3, [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] <... close resumed>) = 0 [pid 4999] close(3 [pid 4998] rmdir("./278/file0" [pid 4999] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4999] rmdir("./278" [pid 4998] getdents64(3, [pid 4999] <... rmdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3 [pid 4999] mkdir("./279", 0777 [pid 4998] <... close resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 4998] rmdir("./278") = 0 [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] mkdir("./279", 0777 [pid 4999] <... openat resumed>) = 3 [pid 4998] <... mkdir resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4999] close(3 [pid 4998] <... openat resumed>) = 3 [pid 4999] <... close resumed>) = 0 [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] ioctl(3, LOOP_CLR_FD [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9852 [pid 4998] <... ioctl resumed>) = -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) = 9853 ./strace-static-x86_64: Process 9852 attached [pid 9852] set_robust_list(0x555556b565e0, 24) = 0 [pid 9852] chdir("./279") = 0 [pid 9852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9852] setpgid(0, 0) = 0 [pid 9852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9852] write(3, "1000", 4 [pid 5000] <... umount2 resumed>) = 0 [pid 9852] <... write resumed>) = 4 [pid 5000] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9853 attached [pid 9852] close(3 [pid 5003] <... umount2 resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./278/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./278/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("./278/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./278") = 0 [pid 9852] <... close resumed>) = 0 [pid 5003] mkdir("./279", 0777 [pid 9852] symlink("/dev/binderfs", "./binderfs" [pid 5000] lstat("./279/file0", [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 9853] set_robust_list(0x555556b565e0, 24 [pid 9852] <... symlink resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9852] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 5000] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9852] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] openat(AT_FDCWD, "./279/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9852] <... mprotect resumed>) = 0 [pid 5000] <... openat resumed>) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9852] 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] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./279/file0"./strace-static-x86_64: Process 9854 attached [pid 9853] <... set_robust_list resumed>) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9854] set_robust_list(0x7f38e1b989e0, 24 [pid 9853] chdir("./279" [pid 9852] <... clone resumed>, parent_tid=[9854], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9854 [pid 9852] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9854] <... set_robust_list resumed>) = 0 [pid 9853] <... chdir resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9852] <... futex resumed>) = 0 [pid 9852] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9855 attached [pid 9854] memfd_create("syzkaller", 0 [pid 9853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9855 [pid 5000] getdents64(3, [pid 9853] <... prctl resumed>) = 0 [pid 9854] <... memfd_create resumed>) = 3 [pid 9853] setpgid(0, 0 [pid 9855] set_robust_list(0x555556b565e0, 24 [pid 9854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9855] <... set_robust_list resumed>) = 0 [pid 9854] <... mmap resumed>) = 0x7f38d9778000 [pid 9853] <... setpgid resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./279") = 0 [pid 5000] mkdir("./280", 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 9855] chdir("./279" [pid 9853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9856 [pid 9853] <... openat resumed>) = 3 ./strace-static-x86_64: Process 9856 attached [pid 9855] <... chdir resumed>) = 0 [pid 9853] write(3, "1000", 4 [pid 9856] set_robust_list(0x555556b565e0, 24 [pid 9855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9853] <... write resumed>) = 4 [pid 9856] <... set_robust_list resumed>) = 0 [pid 9855] <... prctl resumed>) = 0 [pid 9853] close(3 [pid 9856] chdir("./280" [pid 9855] setpgid(0, 0 [pid 9853] <... close resumed>) = 0 [pid 9856] <... chdir resumed>) = 0 [pid 9855] <... setpgid resumed>) = 0 [pid 9853] symlink("/dev/binderfs", "./binderfs" [pid 9856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9853] <... symlink resumed>) = 0 [pid 9856] <... prctl resumed>) = 0 [pid 9855] <... openat resumed>) = 3 [pid 9853] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] setpgid(0, 0 [pid 9855] write(3, "1000", 4 [pid 9853] <... futex resumed>) = 0 [pid 9856] <... setpgid resumed>) = 0 [pid 9855] <... write resumed>) = 4 [pid 9853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9855] close(3 [pid 9853] <... mmap resumed>) = 0x7f38e1b78000 [pid 9856] <... openat resumed>) = 3 [pid 9855] <... close resumed>) = 0 [pid 9853] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9856] write(3, "1000", 4 [pid 9855] symlink("/dev/binderfs", "./binderfs" [pid 9853] <... mprotect resumed>) = 0 [pid 9856] <... write resumed>) = 4 [pid 9855] <... symlink resumed>) = 0 [pid 9853] 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 9856] close(3 [pid 9855] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] <... close resumed>) = 0 [pid 9855] <... futex resumed>) = 0 [pid 9853] <... clone resumed>, parent_tid=[9857], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9857 [pid 9856] symlink("/dev/binderfs", "./binderfs" [pid 9855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9853] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] <... symlink resumed>) = 0 [pid 9855] <... mmap resumed>) = 0x7f38e1b78000 [pid 9853] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9857 attached [pid 9856] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9855] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9854] 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 9853] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9857] set_robust_list(0x7f38e1b989e0, 24 [pid 9856] <... futex resumed>) = 0 [pid 9855] <... mprotect resumed>) = 0 [pid 9856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9855] 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 9857] <... set_robust_list resumed>) = 0 [pid 9856] <... mmap resumed>) = 0x7f38e1b78000 [pid 9856] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9855] <... clone resumed>, parent_tid=[9858], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9858 [pid 9857] memfd_create("syzkaller", 0 [pid 9856] <... mprotect resumed>) = 0 [pid 9855] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] 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 9855] <... futex resumed>) = 0 [pid 9857] <... memfd_create resumed>) = 3 [pid 9855] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9856] <... clone resumed>, parent_tid=[9859], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9859 [pid 9857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9856] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9857] <... mmap resumed>) = 0x7f38d9778000 [pid 9856] <... futex resumed>) = 0 [pid 9856] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9859 attached [pid 9859] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9859] memfd_create("syzkaller", 0) = 3 [pid 9859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9858 attached [pid 9858] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9858] memfd_create("syzkaller", 0) = 3 [pid 9858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9859] 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 9857] 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 9854] <... write resumed>) = 4194304 [pid 9859] <... write resumed>) = 4194304 [pid 9858] 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 9854] munmap(0x7f38d9778000, 4194304) = 0 [pid 9854] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9854] ioctl(4, LOOP_SET_FD, 3 [pid 9859] munmap(0x7f38d9778000, 4194304 [pid 9857] <... write resumed>) = 4194304 [pid 9857] munmap(0x7f38d9778000, 4194304 [pid 9854] <... ioctl resumed>) = 0 [pid 9854] close(3) = 0 [pid 9854] mkdir("./file0", 0777) = 0 [pid 9854] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9859] <... munmap resumed>) = 0 [pid 9859] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9857] <... munmap resumed>) = 0 [pid 9859] <... openat resumed>) = 4 [pid 9858] <... write resumed>) = 4194304 [pid 9857] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9859] ioctl(4, LOOP_SET_FD, 3 [pid 9858] munmap(0x7f38d9778000, 4194304 [pid 9857] <... openat resumed>) = 4 [pid 9859] <... ioctl resumed>) = 0 [pid 9859] close(3) = 0 [pid 9859] mkdir("./file0", 0777) = 0 [pid 9859] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9858] <... munmap resumed>) = 0 [pid 9858] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 278.159056][ T9854] loop1: detected capacity change from 0 to 8192 [ 278.171538][ T9854] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 278.185391][ T9854] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 278.186370][ T9859] loop2: detected capacity change from 0 to 8192 [ 278.195331][ T9854] REISERFS (device loop1): using ordered data mode [pid 9858] ioctl(4, LOOP_SET_FD, 3 [pid 9857] ioctl(4, LOOP_SET_FD, 3 [pid 9858] <... ioctl resumed>) = 0 [pid 9858] close(3) = 0 [pid 9858] mkdir("./file0", 0777) = 0 [pid 9858] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9857] <... ioctl resumed>) = 0 [pid 9857] close(3) = 0 [pid 9857] mkdir("./file0", 0777) = 0 [ 278.206276][ T9858] loop5: detected capacity change from 0 to 8192 [ 278.207722][ T9854] reiserfs: using flush barriers [ 278.218491][ T9859] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 278.219067][ T9857] loop0: detected capacity change from 0 to 8192 [ 278.231924][ T9859] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 278.242035][ T9854] 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 [ 278.247946][ T9859] REISERFS (device loop2): using ordered data mode [ 278.270098][ T9859] reiserfs: using flush barriers [ 278.270428][ T9858] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 278.275959][ T9854] REISERFS (device loop1): checking transaction log (loop1) [ 278.288038][ T9858] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 278.295515][ T9859] 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 [ 278.304405][ T9858] REISERFS (device loop5): using ordered data mode [ 278.321422][ T9857] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 278.327079][ T9858] reiserfs: using flush barriers [ 278.340221][ T9854] REISERFS (device loop1): Using r5 hash to sort names [ 278.351952][ T9858] 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 [ 278.353091][ T9854] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 278.368814][ T9859] REISERFS (device loop2): checking transaction log (loop2) [ 278.380990][ T9857] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 278.388770][ T9858] REISERFS (device loop5): checking transaction log (loop5) [pid 9857] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9854] <... mount resumed>) = 0 [pid 9854] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9854] chdir("./file0") = 0 [pid 9854] ioctl(4, LOOP_CLR_FD) = 0 [ 278.397576][ T9857] REISERFS (device loop0): using ordered data mode [ 278.405906][ T9858] REISERFS (device loop5): Using r5 hash to sort names [ 278.411526][ T9854] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 278.418830][ T9859] REISERFS (device loop2): Using r5 hash to sort names [ 278.427310][ T9857] reiserfs: using flush barriers [ 278.434697][ T9859] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9854] close(4) = 0 [pid 9854] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9854] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9852] <... futex resumed>) = 0 [pid 9852] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9858] <... mount resumed>) = 0 [pid 9852] <... futex resumed>) = 1 [pid 9859] <... mount resumed>) = 0 [pid 9858] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9852] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9859] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9858] <... openat resumed>) = 3 [pid 9858] chdir("./file0" [pid 9859] <... openat resumed>) = 3 [pid 9858] <... chdir resumed>) = 0 [pid 9859] chdir("./file0" [pid 9858] ioctl(4, LOOP_CLR_FD [pid 9859] <... chdir resumed>) = 0 [pid 9858] <... ioctl resumed>) = 0 [pid 9859] ioctl(4, LOOP_CLR_FD [pid 9858] close(4 [pid 9859] <... ioctl resumed>) = 0 [pid 9858] <... close resumed>) = 0 [pid 9859] close(4 [pid 9858] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9854] <... futex resumed>) = 0 [pid 9854] mkdir("./file1", 000) = 0 [pid 9854] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9854] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9859] <... close resumed>) = 0 [pid 9858] <... futex resumed>) = 1 [pid 9855] <... futex resumed>) = 0 [pid 9852] <... futex resumed>) = 0 [pid 9858] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9855] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9852] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9859] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9855] <... futex resumed>) = 0 [pid 9852] <... futex resumed>) = 1 [pid 9858] mkdir("./file1", 000 [pid 9856] <... futex resumed>) = 0 [pid 9855] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9852] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9859] <... futex resumed>) = 1 [pid 9856] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9859] mkdir("./file1", 000 [pid 9858] <... mkdir resumed>) = 0 [pid 9856] <... futex resumed>) = 0 [pid 9854] <... futex resumed>) = 0 [pid 9859] <... mkdir resumed>) = 0 [pid 9858] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9854] mkdir("./bus", 000 [pid 9859] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9858] <... futex resumed>) = 1 [pid 9856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9855] <... futex resumed>) = 0 [pid 9854] <... mkdir resumed>) = 0 [pid 9859] <... futex resumed>) = 0 [pid 9858] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9856] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9855] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9854] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9859] mkdir("./bus", 000 [pid 9858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9856] <... futex resumed>) = 0 [pid 9855] <... futex resumed>) = 0 [pid 9854] <... futex resumed>) = 1 [pid 9852] <... futex resumed>) = 0 [pid 9859] <... mkdir resumed>) = 0 [pid 9858] mkdir("./bus", 000 [pid 9856] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9855] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9854] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9852] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9859] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9858] <... mkdir resumed>) = 0 [pid 9856] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9854] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9852] <... futex resumed>) = 0 [pid 9859] <... futex resumed>) = 0 [pid 9858] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9854] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 278.452418][ T9858] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 278.465246][ T9858] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 278.474658][ T9859] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 278.486761][ T9857] 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 [ 278.503250][ T9857] REISERFS (device loop0): checking transaction log (loop0) [pid 9852] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9859] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9858] <... futex resumed>) = 1 [pid 9856] <... futex resumed>) = 0 [pid 9855] <... futex resumed>) = 0 [pid 9858] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9856] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9855] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9855] <... futex resumed>) = 0 [pid 9858] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 278.518703][ T9854] overlayfs: upper fs needs to support d_type. [ 278.524894][ T9854] overlayfs: upper fs does not support tmpfile. [ 278.532432][ T9859] overlayfs: upper fs needs to support d_type. [ 278.536639][ T9857] REISERFS (device loop0): Using r5 hash to sort names [ 278.540208][ T9859] overlayfs: upper fs does not support tmpfile. [ 278.552045][ T9857] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9855] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9852] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9852] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9852] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9852] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9852] 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=[9864], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9864 [pid 9852] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9852] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9864 attached [pid 9857] <... mount resumed>) = 0 [pid 9864] set_robust_list(0x7f38d9b779e0, 24 [pid 9857] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9856] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9855] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9856] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9855] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] <... futex resumed>) = 0 [pid 9855] <... futex resumed>) = 0 [pid 9856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9856] <... mmap resumed>) = 0x7f38d9b57000 [pid 9855] <... mmap resumed>) = 0x7f38d9b57000 [pid 9856] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9855] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9856] <... mprotect resumed>) = 0 [pid 9855] <... mprotect resumed>) = 0 [pid 9856] 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 9855] 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 9856] <... clone resumed>, parent_tid=[9865], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9865 [pid 9855] <... clone resumed>, parent_tid=[9866], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9866 [pid 9856] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9855] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] <... futex resumed>) = 0 [pid 9855] <... futex resumed>) = 0 [pid 9856] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9855] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9864] <... set_robust_list resumed>) = 0 [pid 9857] <... openat resumed>) = 3 [pid 9864] mkdir(".", 0777 [pid 9857] chdir("./file0" [pid 9864] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9857] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 9865 attached [pid 9864] 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 9857] ioctl(4, LOOP_CLR_FD [pid 9865] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9865] mkdir(".", 0777) = -1 EEXIST (File exists) [ 278.552144][ T9858] overlayfs: upper fs needs to support d_type. [ 278.566291][ T9857] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 278.574269][ T9854] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 278.581021][ T9859] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 278.587792][ T9858] overlayfs: upper fs does not support tmpfile. [ 278.595426][ T9859] overlayfs: failed to resolve './file0': -2 [ 278.606163][ T9854] overlayfs: failed to resolve './file0': -2 [pid 9865] 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 9857] <... ioctl resumed>) = 0 [pid 9857] close(4) = 0 [pid 9865] <... mount resumed>) = 0 [pid 9865] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9865] chdir(".") = 0 [pid 9865] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] <... futex resumed>) = 0 [pid 9865] <... futex resumed>) = 1 [pid 9865] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9857] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9853] <... futex resumed>) = 0 [pid 9853] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9853] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9857] mkdir("./file1", 000 [pid 9864] <... mount resumed>) = 0 [pid 9857] <... mkdir resumed>) = 0 [pid 9864] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9857] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9864] <... openat resumed>) = 4 [pid 9857] <... futex resumed>) = 1 [pid 9853] <... futex resumed>) = 0 [pid 9864] chdir("." [pid 9857] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9853] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9864] <... chdir resumed>) = 0 [pid 9857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9853] <... futex resumed>) = 0 [pid 9864] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9857] mkdir("./bus", 000 [pid 9853] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9864] <... futex resumed>) = 1 [pid 9857] <... mkdir resumed>) = 0 [pid 9852] <... futex resumed>) = 0 [pid 9864] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9857] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9853] <... futex resumed>) = 0 [pid 9857] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9853] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9853] <... futex resumed>) = 0 [pid 9857] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9854] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9853] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9854] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9854] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9852] exit_group(0 [pid 9854] <... futex resumed>) = ? [pid 9852] <... exit_group resumed>) = ? [pid 9854] +++ exited with 0 +++ [pid 9864] <... futex resumed>) = ? [ 278.622130][ T9858] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 278.646197][ T9857] overlayfs: upper fs needs to support d_type. [ 278.652390][ T9857] overlayfs: upper fs does not support tmpfile. [ 278.660214][ T9858] overlayfs: failed to resolve './file0': -2 ./strace-static-x86_64: Process 9866 attached [pid 9864] +++ exited with 0 +++ [pid 9852] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9852, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 4999] umount2("./279", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./279", 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("./279/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./279/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./279/binderfs") = 0 [pid 4999] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9866] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9859] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9866] mkdir(".", 0777 [pid 9859] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9866] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9859] <... futex resumed>) = 0 [pid 9857] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9856] exit_group(0 [pid 9865] <... futex resumed>) = ? [pid 9857] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9856] <... exit_group resumed>) = ? [pid 9866] 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 9865] +++ exited with 0 +++ [pid 9866] <... mount resumed>) = 0 [pid 9859] +++ exited with 0 +++ [pid 9866] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9866] chdir(".") = 0 [pid 9866] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9855] <... futex resumed>) = 0 [pid 9866] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9857] <... futex resumed>) = 1 [pid 9856] +++ exited with 0 +++ [pid 9853] <... futex resumed>) = 0 [pid 9857] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9853] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9853] <... futex resumed>) = 0 [pid 9857] mkdir(".", 0777 [pid 9853] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9856, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 9857] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5000] umount2("./280", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... umount2 resumed>) = 0 [pid 9857] 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 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] openat(AT_FDCWD, "./280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... openat resumed>) = 3 [pid 5000] fstat(3, [pid 4999] lstat("./279/file0", [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./280/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9857] <... mount resumed>) = 0 [pid 4999] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9857] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./279/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9857] <... openat resumed>) = 4 [pid 5000] lstat("./280/binderfs", [pid 4999] <... openat resumed>) = 4 [pid 9857] chdir("." [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] fstat(4, [pid 9858] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9857] <... chdir resumed>) = 0 [pid 5000] unlink("./280/binderfs" [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9858] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9857] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9855] exit_group(0 [pid 5000] <... unlink resumed>) = 0 [pid 4999] getdents64(4, [pid 9866] <... futex resumed>) = ? [pid 9858] <... futex resumed>) = ? [pid 9857] <... futex resumed>) = 1 [pid 9855] <... exit_group resumed>) = ? [pid 9853] <... futex resumed>) = 0 [pid 5000] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9866] +++ exited with 0 +++ [pid 9858] +++ exited with 0 +++ [pid 9857] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9855] +++ exited with 0 +++ [pid 9853] exit_group(0 [pid 4999] getdents64(4, [pid 9857] <... futex resumed>) = ? [pid 9853] <... exit_group resumed>) = ? [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9855, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9857] +++ exited with 0 +++ [pid 4999] close(4) = 0 [pid 5003] umount2("./279", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] rmdir("./279/file0" [pid 9853] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... rmdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4999] getdents64(3, [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9853, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5003] <... openat resumed>) = 3 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] restart_syscall(<... resuming interrupted clone ...> [pid 5003] fstat(3, [pid 4999] close(3 [pid 4998] <... restart_syscall resumed>) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] <... close resumed>) = 0 [pid 5003] getdents64(3, [pid 4999] rmdir("./279" [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4999] <... rmdir resumed>) = 0 [pid 4998] umount2("./279", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./279/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] mkdir("./280", 0777 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4999] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "./279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] lstat("./279/binderfs", [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4998] <... openat resumed>) = 3 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] <... openat resumed>) = 3 [pid 4998] fstat(3, [pid 5003] unlink("./279/binderfs" [pid 4999] ioctl(3, LOOP_CLR_FD [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] getdents64(3, [pid 5003] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] close(3 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [ 278.660773][ T9857] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 278.676144][ T9857] overlayfs: failed to resolve './file0': -2 [pid 4999] <... close resumed>) = 0 [pid 4998] umount2("./279/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./279/binderfs", [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9867 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./279/binderfs") = 0 [pid 4998] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9867 attached [pid 9867] set_robust_list(0x555556b565e0, 24) = 0 [pid 9867] chdir("./280") = 0 [pid 9867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9867] setpgid(0, 0) = 0 [pid 9867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9867] write(3, "1000", 4) = 4 [pid 9867] close(3) = 0 [pid 9867] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9867] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9867] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9867] 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=[9868], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9868 [pid 9867] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9867] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9868 attached [pid 9868] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9868] memfd_create("syzkaller", 0) = 3 [pid 9868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9868] 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] <... umount2 resumed>) = 0 [pid 4998] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./279/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./279/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("./279/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./279") = 0 [pid 4998] mkdir("./280", 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>) = 0 [pid 5000] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./280/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] openat(AT_FDCWD, "./280/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 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9869 [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("./280/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./280") = 0 [pid 5000] mkdir("./281", 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./strace-static-x86_64: Process 9869 attached , child_tidptr=0x555556b565d0) = 9870 [pid 9869] set_robust_list(0x555556b565e0, 24./strace-static-x86_64: Process 9870 attached ) = 0 [pid 9869] chdir("./280") = 0 [pid 9870] set_robust_list(0x555556b565e0, 24 [pid 9868] <... write resumed>) = 4194304 [pid 5003] <... umount2 resumed>) = 0 [pid 9870] <... set_robust_list resumed>) = 0 [pid 9869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9868] munmap(0x7f38d9778000, 4194304 [pid 5003] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9870] chdir("./281") = 0 [pid 9870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9870] setpgid(0, 0) = 0 [pid 9869] <... prctl resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9869] setpgid(0, 0 [pid 9868] <... munmap resumed>) = 0 [pid 9870] <... openat resumed>) = 3 [pid 9870] write(3, "1000", 4 [pid 9869] <... setpgid resumed>) = 0 [pid 9870] <... write resumed>) = 4 [pid 9870] close(3) = 0 [pid 9870] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9870] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9870] <... mmap resumed>) = 0x7f38e1b78000 [pid 9870] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9869] <... openat resumed>) = 3 [pid 9870] <... mprotect resumed>) = 0 [pid 9869] write(3, "1000", 4 [pid 5003] lstat("./279/file0", [pid 9870] 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 9869] <... write resumed>) = 4 [pid 9869] close(3) = 0 [pid 9870] <... clone resumed>, parent_tid=[9871], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9871 [pid 9869] symlink("/dev/binderfs", "./binderfs" [pid 9870] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9869] <... symlink resumed>) = 0 [pid 9870] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9869] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 9871 attached [pid 9871] set_robust_list(0x7f38e1b989e0, 24 [pid 9869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9871] <... set_robust_list resumed>) = 0 [pid 9869] <... mmap resumed>) = 0x7f38e1b78000 [pid 9869] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9869] 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 9871] memfd_create("syzkaller", 0) = 3 [pid 9871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9869] <... clone resumed>, parent_tid=[9872], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9872 [pid 9869] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9869] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9871] <... mmap resumed>) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./279/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 9872 attached [pid 9868] openat(AT_FDCWD, "/dev/loop1", O_RDWR [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 9872] set_robust_list(0x7f38e1b989e0, 24 [pid 9868] <... openat resumed>) = 4 [pid 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 9868] ioctl(4, LOOP_SET_FD, 3 [pid 5003] <... close resumed>) = 0 [pid 9868] <... ioctl resumed>) = 0 [pid 5003] rmdir("./279/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./279") = 0 [pid 5003] mkdir("./280", 0777 [pid 9872] <... set_robust_list resumed>) = 0 [pid 5003] <... mkdir resumed>) = 0 [pid 9872] memfd_create("syzkaller", 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9872] <... memfd_create resumed>) = 3 [pid 5003] <... openat resumed>) = 3 [pid 9872] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5003] ioctl(3, LOOP_CLR_FD [pid 9872] <... mmap resumed>) = 0x7f38d9778000 [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) = 9873 [pid 9871] 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 9873 attached [pid 9868] close(3 [pid 9873] set_robust_list(0x555556b565e0, 24) = 0 [pid 9873] chdir("./280") = 0 [pid 9868] <... close resumed>) = 0 [pid 9873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9868] mkdir("./file0", 0777 [pid 9873] <... prctl resumed>) = 0 [pid 9873] setpgid(0, 0) = 0 [pid 9868] <... mkdir resumed>) = 0 [pid 9873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9868] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9873] <... openat resumed>) = 3 [pid 9873] write(3, "1000", 4) = 4 [pid 9873] close(3) = 0 [pid 9873] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9873] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9873] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [ 278.886258][ T9868] loop1: detected capacity change from 0 to 8192 [pid 9873] 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=[9875], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9875 [pid 9873] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9871] <... write resumed>) = 4194304 [pid 9873] <... futex resumed>) = 0 [pid 9871] munmap(0x7f38d9778000, 4194304 [pid 9873] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9875 attached [pid 9875] set_robust_list(0x7f38e1b989e0, 24 [pid 9871] <... munmap resumed>) = 0 [pid 9871] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9875] <... set_robust_list resumed>) = 0 [pid 9871] <... openat resumed>) = 4 [pid 9871] ioctl(4, LOOP_SET_FD, 3 [pid 9875] memfd_create("syzkaller", 0) = 3 [pid 9875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9871] <... ioctl resumed>) = 0 [pid 9871] close(3) = 0 [pid 9871] mkdir("./file0", 0777) = 0 [pid 9871] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 278.925155][ T9868] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 278.944843][ T9871] loop2: detected capacity change from 0 to 8192 [ 278.955405][ T9868] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 278.969158][ T9871] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9872] 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 [ 278.976109][ T9868] REISERFS (device loop1): using ordered data mode [ 278.988750][ T9868] reiserfs: using flush barriers [ 278.995046][ T9868] 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 [ 279.011331][ T9871] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 279.011684][ T9868] REISERFS (device loop1): checking transaction log (loop1) [ 279.028789][ T9868] REISERFS (device loop1): Using r5 hash to sort names [pid 9875] 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 9872] <... write resumed>) = 4194304 [pid 9872] munmap(0x7f38d9778000, 4194304) = 0 [pid 9872] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9872] ioctl(4, LOOP_SET_FD, 3 [pid 9875] <... write resumed>) = 4194304 [pid 9872] <... ioctl resumed>) = 0 [pid 9868] <... mount resumed>) = 0 [pid 9868] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9868] chdir("./file0") = 0 [pid 9868] ioctl(4, LOOP_CLR_FD) = 0 [pid 9868] close(4) = 0 [pid 9868] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9868] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9875] munmap(0x7f38d9778000, 4194304 [pid 9867] <... futex resumed>) = 0 [pid 9867] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9868] <... futex resumed>) = 0 [pid 9867] <... futex resumed>) = 1 [pid 9868] mkdir("./file1", 000 [pid 9867] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9868] <... mkdir resumed>) = 0 [pid 9868] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9867] <... futex resumed>) = 0 [pid 9868] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9867] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9867] <... futex resumed>) = 0 [pid 9868] mkdir("./bus", 000 [pid 9872] close(3 [pid 9867] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9868] <... mkdir resumed>) = 0 [pid 9872] <... close resumed>) = 0 [pid 9868] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9872] mkdir("./file0", 0777 [pid 9868] <... futex resumed>) = 1 [pid 9867] <... futex resumed>) = 0 [pid 9875] <... munmap resumed>) = 0 [pid 9868] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9867] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9875] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9872] <... mkdir resumed>) = 0 [pid 9868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9867] <... futex resumed>) = 0 [pid 9875] <... openat resumed>) = 4 [pid 9872] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9868] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9867] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 279.036065][ T9868] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 279.045936][ T9872] loop0: detected capacity change from 0 to 8192 [ 279.049341][ T9868] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 279.055690][ T9871] REISERFS (device loop2): using ordered data mode [ 279.070904][ T9871] reiserfs: using flush barriers [pid 9875] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9875] close(3) = 0 [pid 9875] mkdir("./file0", 0777) = 0 [ 279.083735][ T9868] overlayfs: upper fs needs to support d_type. [ 279.083895][ T9875] loop5: detected capacity change from 0 to 8192 [ 279.094461][ T9868] overlayfs: upper fs does not support tmpfile. [ 279.103786][ T9871] 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 [ 279.106236][ T9868] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 279.128491][ T9868] overlayfs: failed to resolve './file0': -2 [pid 9875] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9867] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9867] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9868] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9867] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9867] 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=[9879], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9879 [pid 9867] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 279.130919][ T9872] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 279.135110][ T9871] REISERFS (device loop2): checking transaction log (loop2) [ 279.147930][ T9872] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 279.156703][ T9875] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 279.164434][ T9872] REISERFS (device loop0): using ordered data mode [pid 9867] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9879 attached [pid 9868] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9879] set_robust_list(0x7f38d9b779e0, 24 [pid 9868] <... futex resumed>) = 0 [pid 9879] <... set_robust_list resumed>) = 0 [ 279.181949][ T9875] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 279.183812][ T9872] reiserfs: using flush barriers [ 279.194922][ T9875] REISERFS (device loop5): using ordered data mode [ 279.204930][ T9871] REISERFS (device loop2): Using r5 hash to sort names [ 279.205580][ T9872] 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 [ 279.212974][ T9875] reiserfs: using flush barriers [pid 9868] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 279.228376][ T9872] REISERFS (device loop0): checking transaction log (loop0) [ 279.234684][ T9871] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 279.242363][ T9872] REISERFS (device loop0): Using r5 hash to sort names [ 279.256571][ T9871] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 279.261388][ T9872] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9879] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9879] 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 9871] <... mount resumed>) = 0 [pid 9871] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9871] chdir("./file0") = 0 [pid 9871] ioctl(4, LOOP_CLR_FD) = 0 [pid 9871] close(4) = 0 [pid 9871] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9871] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9870] <... futex resumed>) = 0 [pid 9870] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9879] <... mount resumed>) = 0 [pid 9870] <... futex resumed>) = 0 [pid 9879] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9870] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9879] <... openat resumed>) = 4 [pid 9879] chdir(".") = 0 [pid 9879] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9867] <... futex resumed>) = 0 [pid 9879] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9867] exit_group(0 [pid 9879] <... futex resumed>) = ? [pid 9868] <... futex resumed>) = ? [pid 9867] <... exit_group resumed>) = ? [pid 9868] +++ exited with 0 +++ [pid 9871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9871] mkdir("./file1", 000 [pid 9879] +++ exited with 0 +++ [pid 9867] +++ exited with 0 +++ [pid 4999] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9867, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 4999] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4999] umount2("./280", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./280", 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("./280/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] lstat("./280/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4999] unlink("./280/binderfs" [pid 9871] <... mkdir resumed>) = 0 [pid 4999] <... unlink resumed>) = 0 [pid 9872] <... mount resumed>) = 0 [pid 9871] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9871] <... futex resumed>) = 1 [pid 9871] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9872] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 279.270436][ T9875] 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 [ 279.282816][ T9872] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9872] chdir("./file0") = 0 [pid 9872] ioctl(4, LOOP_CLR_FD) = 0 [pid 9872] close(4) = 0 [pid 9872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9869] <... futex resumed>) = 0 [pid 9872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9869] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9869] <... futex resumed>) = 0 [pid 9872] mkdir("./file1", 000 [pid 9869] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9872] <... mkdir resumed>) = 0 [pid 9870] <... futex resumed>) = 0 [pid 9872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9869] <... futex resumed>) = 0 [pid 9872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9869] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9869] <... futex resumed>) = 0 [pid 9872] mkdir("./bus", 000 [pid 9869] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9872] <... mkdir resumed>) = 0 [pid 9872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9869] <... futex resumed>) = 0 [pid 9872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9869] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9869] <... futex resumed>) = 0 [pid 9872] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9869] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9870] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9871] <... futex resumed>) = 0 [pid 9870] <... futex resumed>) = 1 [pid 9871] mkdir("./bus", 000 [pid 9870] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9871] <... mkdir resumed>) = 0 [pid 9871] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9870] <... futex resumed>) = 0 [pid 9871] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9870] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 279.329013][ T9875] REISERFS (device loop5): checking transaction log (loop5) [ 279.345949][ T9872] overlayfs: upper fs needs to support d_type. [ 279.355320][ T9871] overlayfs: upper fs needs to support d_type. [ 279.355969][ T9872] overlayfs: upper fs does not support tmpfile. [ 279.369170][ T9875] REISERFS (device loop5): Using r5 hash to sort names [pid 9870] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9869] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9869] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9869] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4999] <... umount2 resumed>) = 0 [pid 9869] 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] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9869] <... clone resumed>, parent_tid=[9880], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9880 [pid 9869] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] lstat("./280/file0", [pid 9869] <... futex resumed>) = 0 [pid 9869] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4999] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4999] openat(AT_FDCWD, "./280/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4999] fstat(4, [pid 9870] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9870] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9870] <... futex resumed>) = 0 [pid 9870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4999] getdents64(4, [pid 9870] <... mmap resumed>) = 0x7f38d9b57000 [pid 9870] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9870] <... mprotect resumed>) = 0 [pid 4999] getdents64(4, [pid 9870] 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 9880 attached [pid 4999] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9880] set_robust_list(0x7f38d9b779e0, 24 [pid 4999] close(4 [pid 9880] <... set_robust_list resumed>) = 0 [pid 9870] <... clone resumed>, parent_tid=[9881], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9881 [pid 9870] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... close resumed>) = 0 [pid 9880] mkdir(".", 0777 [pid 9870] <... futex resumed>) = 0 [ 279.376726][ T9871] overlayfs: upper fs does not support tmpfile. [ 279.376754][ T9875] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 279.396843][ T9871] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 279.397936][ T9872] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 279.415762][ T9871] overlayfs: failed to resolve './file0': -2 [ 279.417258][ T9872] overlayfs: failed to resolve './file0': -2 [pid 4999] rmdir("./280/file0" [pid 9880] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9870] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9881 attached [pid 9880] 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 9881] set_robust_list(0x7f38d9b779e0, 24 [pid 9871] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] getdents64(3, [pid 9881] <... set_robust_list resumed>) = 0 [pid 9871] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9881] mkdir(".", 0777 [pid 9871] <... futex resumed>) = 0 [pid 4999] close(3 [pid 9881] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9871] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4999] <... close resumed>) = 0 [pid 9881] 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 9872] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 4999] rmdir("./280" [pid 9875] <... mount resumed>) = 0 [pid 4999] <... rmdir resumed>) = 0 [pid 9875] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9872] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] mkdir("./281", 0777 [pid 9880] <... mount resumed>) = 0 [pid 9875] <... openat resumed>) = 3 [pid 9872] <... futex resumed>) = 0 [pid 4999] <... mkdir resumed>) = 0 [pid 9880] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4999] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 9880] <... openat resumed>) = 4 [pid 9880] chdir("." [pid 4999] <... openat resumed>) = 3 [pid 9880] <... chdir resumed>) = 0 [pid 4999] ioctl(3, LOOP_CLR_FD [pid 9880] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4999] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9880] <... futex resumed>) = 1 [pid 9869] <... futex resumed>) = 0 [pid 4999] close(3 [pid 9881] <... mount resumed>) = 0 [pid 9880] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9875] chdir("./file0" [pid 9872] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9869] exit_group(0 [pid 4999] <... close resumed>) = 0 [pid 9881] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9881] chdir(".") = 0 [pid 9881] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9880] <... futex resumed>) = ? [pid 9870] <... futex resumed>) = 0 [pid 9869] <... exit_group resumed>) = ? [pid 4999] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9870] exit_group(0 [pid 9881] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL) = ? [pid 9871] <... futex resumed>) = ? [pid 9870] <... exit_group resumed>) = ? [pid 9880] +++ exited with 0 +++ [pid 9881] +++ exited with 0 +++ [pid 9871] +++ exited with 0 +++ [pid 9872] <... futex resumed>) = ? [pid 9870] +++ exited with 0 +++ [pid 4999] <... clone resumed>, child_tidptr=0x555556b565d0) = 9882 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9870, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- ./strace-static-x86_64: Process 9882 attached [pid 9875] <... chdir resumed>) = 0 [pid 5000] umount2("./281", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9882] set_robust_list(0x555556b565e0, 24 [pid 5000] openat(AT_FDCWD, "./281", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9875] ioctl(4, LOOP_CLR_FD [pid 5000] <... openat resumed>) = 3 [pid 9882] <... set_robust_list resumed>) = 0 [pid 9875] <... ioctl resumed>) = 0 [pid 5000] fstat(3, [pid 9882] chdir("./281" [pid 9875] close(4 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9872] +++ exited with 0 +++ [pid 9869] +++ exited with 0 +++ [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./281/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9869, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] umount2("./280", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] lstat("./281/binderfs", [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9882] <... chdir resumed>) = 0 [pid 9875] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] openat(AT_FDCWD, "./280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9875] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] unlink("./281/binderfs" [pid 4998] <... openat resumed>) = 3 [pid 9882] <... prctl resumed>) = 0 [pid 9875] <... futex resumed>) = 1 [pid 9873] <... futex resumed>) = 0 [pid 5000] <... unlink resumed>) = 0 [pid 4998] fstat(3, [pid 9882] setpgid(0, 0 [pid 9875] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9873] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9882] <... setpgid resumed>) = 0 [pid 9875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9873] <... futex resumed>) = 0 [pid 4998] getdents64(3, [pid 9882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9875] mkdir("./file1", 000 [pid 9873] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9882] <... openat resumed>) = 3 [pid 9875] <... mkdir resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9882] write(3, "1000", 4 [pid 9875] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] umount2("./280/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9882] <... write resumed>) = 4 [pid 9875] <... futex resumed>) = 1 [pid 9873] <... futex resumed>) = 0 [pid 9882] close(3 [pid 9875] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9873] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9882] <... close resumed>) = 0 [pid 9875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9873] <... futex resumed>) = 0 [pid 9882] symlink("/dev/binderfs", "./binderfs" [pid 9875] mkdir("./bus", 000 [pid 9873] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] lstat("./280/binderfs", [pid 9882] <... symlink resumed>) = 0 [pid 9875] <... mkdir resumed>) = 0 [pid 9882] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9875] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9882] <... futex resumed>) = 0 [pid 9875] <... futex resumed>) = 1 [pid 9873] <... futex resumed>) = 0 [pid 4998] unlink("./280/binderfs" [pid 9882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9875] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9873] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9882] <... mmap resumed>) = 0x7f38e1b78000 [pid 9875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9873] <... futex resumed>) = 0 [pid 4998] <... unlink resumed>) = 0 [pid 9882] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9875] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9873] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4998] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9882] <... mprotect resumed>) = 0 [pid 9882] 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=[9883], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9883 [pid 9882] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 279.431573][ T9875] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9882] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9883 attached [pid 9883] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9883] memfd_create("syzkaller", 0) = 3 [pid 9883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 9873] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9873] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9873] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9873] 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=[9884], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9884 [pid 5000] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9873] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9873] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./281/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./281/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("./281/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3./strace-static-x86_64: Process 9884 attached [pid 9884] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./281" [pid 9884] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9884] 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 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./282", 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) [ 279.481397][ T9875] overlayfs: upper fs needs to support d_type. [ 279.489323][ T9875] overlayfs: upper fs does not support tmpfile. [ 279.503968][ T9875] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 279.523160][ T9875] overlayfs: failed to resolve './file0': -2 [pid 5000] close(3) = 0 [pid 9884] <... mount resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9884] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9884] chdir(".") = 0 [pid 9884] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9873] <... futex resumed>) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9885 [pid 9884] <... futex resumed>) = 1 [pid 9884] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9883] 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 9885 attached [pid 9885] set_robust_list(0x555556b565e0, 24 [pid 4998] <... umount2 resumed>) = 0 [pid 9885] <... set_robust_list resumed>) = 0 [pid 4998] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./280/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./280/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, [pid 9885] chdir("./282") = 0 [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9885] prctl(PR_SET_PDEATHSIG, SIGKILL [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("./280/file0" [pid 9885] <... prctl resumed>) = 0 [pid 9885] setpgid(0, 0) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, [pid 9885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./280" [pid 9885] <... openat resumed>) = 3 [pid 4998] <... rmdir resumed>) = 0 [pid 9885] write(3, "1000", 4) = 4 [pid 4998] mkdir("./281", 0777 [pid 9885] close(3 [pid 4998] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9885] <... close resumed>) = 0 [pid 9885] symlink("/dev/binderfs", "./binderfs" [pid 4998] <... openat resumed>) = 3 [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 9885] <... symlink resumed>) = 0 [pid 4998] close(3) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9886 ./strace-static-x86_64: Process 9886 attached [pid 9886] set_robust_list(0x555556b565e0, 24) = 0 [pid 9875] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9875] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9873] exit_group(0 [pid 9884] <... futex resumed>) = ? [pid 9875] <... futex resumed>) = ? [pid 9873] <... exit_group resumed>) = ? [pid 9884] +++ exited with 0 +++ [pid 9875] +++ exited with 0 +++ [pid 9873] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9873, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 9886] chdir("./281") = 0 [pid 9886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9886] setpgid(0, 0) = 0 [pid 9885] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] umount2("./280", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9885] <... mmap resumed>) = 0x7f38e1b78000 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9885] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5003] openat(AT_FDCWD, "./280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9885] <... mprotect resumed>) = 0 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9885] 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] umount2("./280/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9885] <... clone resumed>, parent_tid=[9887], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9887 [pid 5003] lstat("./280/binderfs", [pid 9885] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9885] <... futex resumed>) = 0 [pid 5003] unlink("./280/binderfs" [pid 9885] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9886] write(3, "1000", 4) = 4 [pid 9886] close(3) = 0 [pid 9886] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9886] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9886] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9886] 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=[9888], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9888 [pid 9886] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9886] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9887 attached [pid 9887] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9887] memfd_create("syzkaller", 0) = 3 [pid 9887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9888 attached [pid 9888] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9888] memfd_create("syzkaller", 0) = 3 [pid 9888] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9883] <... write resumed>) = 4194304 [pid 9883] munmap(0x7f38d9778000, 4194304) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 9883] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 9883] ioctl(4, LOOP_SET_FD, 3 [pid 5003] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./280/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./280/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("./280/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./280") = 0 [pid 5003] mkdir("./281", 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) = 9889 [pid 9887] 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 9889 attached [pid 9889] set_robust_list(0x555556b565e0, 24) = 0 [pid 9889] chdir("./281") = 0 [pid 9889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9889] setpgid(0, 0) = 0 [pid 9889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9889] write(3, "1000", 4) = 4 [pid 9889] close(3 [pid 9883] <... ioctl resumed>) = 0 [pid 9889] <... close resumed>) = 0 [pid 9889] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9889] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9889] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9883] close(3 [pid 9889] <... mprotect resumed>) = 0 [pid 9883] <... close resumed>) = 0 [pid 9889] 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 9888] 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 9883] mkdir("./file0", 0777./strace-static-x86_64: Process 9890 attached [pid 9887] <... write resumed>) = 4194304 [pid 9890] set_robust_list(0x7f38e1b989e0, 24 [pid 9889] <... clone resumed>, parent_tid=[9890], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9890 [pid 9887] munmap(0x7f38d9778000, 4194304 [pid 9890] <... set_robust_list resumed>) = 0 [pid 9889] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9883] <... mkdir resumed>) = 0 [pid 9890] memfd_create("syzkaller", 0 [pid 9889] <... futex resumed>) = 0 [pid 9887] <... munmap resumed>) = 0 [pid 9883] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9890] <... memfd_create resumed>) = 3 [pid 9889] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9887] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9890] <... mmap resumed>) = 0x7f38d9778000 [pid 9887] <... openat resumed>) = 4 [pid 9888] <... write resumed>) = 4194304 [ 279.668246][ T9883] loop1: detected capacity change from 0 to 8192 [pid 9888] munmap(0x7f38d9778000, 4194304) = 0 [pid 9888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9888] ioctl(4, LOOP_SET_FD, 3 [pid 9887] ioctl(4, LOOP_SET_FD, 3 [pid 9888] <... ioctl resumed>) = 0 [pid 9888] close(3 [pid 9890] 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 9888] <... close resumed>) = 0 [pid 9887] <... ioctl resumed>) = 0 [pid 9888] mkdir("./file0", 0777) = 0 [pid 9888] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9887] close(3) = 0 [pid 9887] mkdir("./file0", 0777) = 0 [ 279.726159][ T9883] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 279.729771][ T9888] loop0: detected capacity change from 0 to 8192 [ 279.739539][ T9887] loop2: detected capacity change from 0 to 8192 [ 279.752836][ T9883] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 279.762780][ T9883] REISERFS (device loop1): using ordered data mode [ 279.769557][ T9883] reiserfs: using flush barriers [pid 9887] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9890] <... write resumed>) = 4194304 [pid 9890] munmap(0x7f38d9778000, 4194304) = 0 [pid 9890] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9890] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9890] close(3) = 0 [pid 9890] mkdir("./file0", 0777) = 0 [ 279.769744][ T9888] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 279.787695][ T9883] 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 [ 279.799430][ T9890] loop5: detected capacity change from 0 to 8192 [ 279.804440][ T9883] REISERFS (device loop1): checking transaction log (loop1) [ 279.814059][ T9888] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 279.818529][ T9883] REISERFS (device loop1): Using r5 hash to sort names [ 279.827218][ T9888] REISERFS (device loop0): using ordered data mode [ 279.833834][ T9883] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 279.840112][ T9887] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 279.852885][ T9883] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 9890] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9883] <... mount resumed>) = 0 [ 279.866628][ T9888] reiserfs: using flush barriers [ 279.880180][ T9890] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 279.880359][ T9887] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 279.895699][ T9890] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 279.902479][ T9887] REISERFS (device loop2): using ordered data mode [pid 9883] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9883] chdir("./file0") = 0 [pid 9883] ioctl(4, LOOP_CLR_FD) = 0 [pid 9883] close(4) = 0 [pid 9883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9882] <... futex resumed>) = 0 [pid 9883] mkdir("./file1", 000 [pid 9882] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9883] <... mkdir resumed>) = 0 [pid 9882] <... futex resumed>) = 0 [pid 9883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9882] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9883] <... futex resumed>) = 0 [pid 9882] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9883] mkdir("./bus", 000 [pid 9882] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9883] <... mkdir resumed>) = 0 [pid 9882] <... futex resumed>) = 0 [pid 9883] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9882] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 9882] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9882] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9883] <... futex resumed>) = 1 [pid 9882] <... futex resumed>) = 0 [pid 9882] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 279.912006][ T9888] 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 [ 279.918349][ T9890] REISERFS (device loop5): using ordered data mode [ 279.936159][ T9887] reiserfs: using flush barriers [ 279.940887][ T9890] reiserfs: using flush barriers [ 279.951639][ T9890] 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 [ 279.967283][ T9888] REISERFS (device loop0): checking transaction log (loop0) [pid 9883] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9882] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9882] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9882] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9882] 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=[9895], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9895 [pid 9882] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 279.968224][ T9890] REISERFS (device loop5): checking transaction log (loop5) [ 279.975664][ T9883] overlayfs: upper fs needs to support d_type. [ 279.982946][ T9890] REISERFS (device loop5): Using r5 hash to sort names [ 279.989388][ T9887] 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 [ 279.995764][ T9890] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9882] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9895 attached [pid 9895] set_robust_list(0x7f38d9b779e0, 24 [pid 9890] <... mount resumed>) = 0 [pid 9895] <... set_robust_list resumed>) = 0 [pid 9895] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9895] 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 9890] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9890] chdir("./file0") = 0 [pid 9890] ioctl(4, LOOP_CLR_FD) = 0 [pid 9890] close(4) = 0 [pid 9890] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9890] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9889] <... futex resumed>) = 0 [pid 9889] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9890] <... futex resumed>) = 0 [pid 9889] <... futex resumed>) = 1 [pid 9890] mkdir("./file1", 000 [pid 9889] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9890] <... mkdir resumed>) = 0 [pid 9890] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9889] <... futex resumed>) = 0 [pid 9890] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9889] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9889] <... futex resumed>) = 0 [pid 9890] mkdir("./bus", 000 [pid 9889] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9890] <... mkdir resumed>) = 0 [pid 9890] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9889] <... futex resumed>) = 0 [pid 9890] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9889] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9889] <... futex resumed>) = 0 [pid 9890] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 280.017834][ T9883] overlayfs: upper fs does not support tmpfile. [ 280.031156][ T9890] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 280.032522][ T9887] REISERFS (device loop2): checking transaction log (loop2) [ 280.041415][ T9883] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 280.055002][ T9888] REISERFS (device loop0): Using r5 hash to sort names [ 280.068610][ T9887] REISERFS (device loop2): Using r5 hash to sort names [pid 9889] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9887] <... mount resumed>) = 0 [pid 9887] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9887] chdir("./file0") = 0 [pid 9887] ioctl(4, LOOP_CLR_FD) = 0 [pid 9887] close(4) = 0 [pid 9887] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9885] <... futex resumed>) = 0 [pid 9885] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9885] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9887] <... futex resumed>) = 1 [pid 9887] mkdir("./file1", 000) = 0 [pid 9887] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9885] <... futex resumed>) = 0 [pid 9885] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 280.068696][ T9890] overlayfs: upper fs needs to support d_type. [ 280.075584][ T9887] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 280.095306][ T9887] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 280.095877][ T9888] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9885] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9889] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9889] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9889] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9889] 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=[9896], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9896 [pid 9887] <... futex resumed>) = 1 [pid 9889] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9889] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9887] mkdir("./bus", 000./strace-static-x86_64: Process 9896 attached ) = 0 [pid 9887] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9885] <... futex resumed>) = 0 [pid 9887] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9885] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9885] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9896] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9896] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9896] 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 9896] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9896] chdir(".") = 0 [ 280.127155][ T9890] overlayfs: upper fs does not support tmpfile. [ 280.133936][ T9890] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 280.135165][ T9887] overlayfs: upper fs needs to support d_type. [ 280.150955][ T9887] overlayfs: upper fs does not support tmpfile. [ 280.159570][ T9887] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 280.167878][ T9890] overlayfs: failed to resolve './file0': -2 [pid 9896] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9896] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9885] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9885] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9885] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9885] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9885] 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=[9897], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9897 [pid 9885] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9885] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9889] <... futex resumed>) = 0 ./strace-static-x86_64: Process 9897 attached [pid 9888] <... mount resumed>) = 0 [pid 9897] set_robust_list(0x7f38d9b779e0, 24 [pid 9888] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9897] <... set_robust_list resumed>) = 0 [pid 9888] <... openat resumed>) = 3 [pid 9890] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9887] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9890] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9888] chdir("./file0" [pid 9887] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9897] mkdir(".", 0777 [pid 9889] exit_group(0 [pid 9896] <... futex resumed>) = ? [pid 9889] <... exit_group resumed>) = ? [pid 9897] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9896] +++ exited with 0 +++ [pid 9897] 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 9887] <... futex resumed>) = 0 [pid 9887] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9888] <... chdir resumed>) = 0 [pid 9888] ioctl(4, LOOP_CLR_FD) = 0 [pid 9890] <... futex resumed>) = ? [pid 9888] close(4) = 0 [pid 9888] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9886] <... futex resumed>) = 0 [pid 9886] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9886] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9888] <... futex resumed>) = 1 [pid 9888] mkdir("./file1", 000) = 0 [pid 9890] +++ exited with 0 +++ [pid 9889] +++ exited with 0 +++ [pid 9888] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9886] <... futex resumed>) = 0 [pid 9886] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9886] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9889, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 9888] <... futex resumed>) = 1 [pid 9888] mkdir("./bus", 000 [pid 5003] umount2("./281", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9888] <... mkdir resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9888] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] openat(AT_FDCWD, "./281", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9886] <... futex resumed>) = 0 [pid 9886] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... openat resumed>) = 3 [pid 9886] <... futex resumed>) = 0 [pid 5003] fstat(3, [pid 9888] <... futex resumed>) = 1 [pid 9886] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9888] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [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("./281/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./281/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./281/binderfs") = 0 [pid 5003] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9897] <... mount resumed>) = 0 [pid 9897] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9897] chdir(".") = 0 [pid 9897] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9885] <... futex resumed>) = 0 [pid 9897] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9885] exit_group(0 [pid 9897] <... futex resumed>) = ? [pid 9887] <... futex resumed>) = ? [pid 9885] <... exit_group resumed>) = ? [pid 9897] +++ exited with 0 +++ [pid 9887] +++ exited with 0 +++ [pid 9885] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9885, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./282", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./282", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 280.172148][ T9887] overlayfs: failed to resolve './file0': -2 [ 280.175241][ T9888] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 280.199524][ T9888] overlayfs: upper fs needs to support d_type. [ 280.208116][ T9888] overlayfs: upper fs does not support tmpfile. [pid 5000] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./282/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./282/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./282/binderfs") = 0 [pid 5000] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9886] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9886] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9886] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./281/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9886] <... mmap resumed>) = 0x7f38d9b57000 [pid 9886] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9886] 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=[9898], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9898 [pid 9886] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9886] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./281/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("./281/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./281") = 0 [pid 5003] mkdir("./282", 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./strace-static-x86_64: Process 9898 attached ) = 0 [pid 9898] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9898] mkdir(".", 0777 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9898] <... mkdir resumed>) = -1 EEXIST (File exists) [ 280.228887][ T9888] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 280.237286][ T9888] overlayfs: failed to resolve './file0': -2 [pid 9898] 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) = 9899 ./strace-static-x86_64: Process 9899 attached [pid 9899] set_robust_list(0x555556b565e0, 24 [pid 9888] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9888] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9888] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9899] <... set_robust_list resumed>) = 0 [pid 9898] <... mount resumed>) = 0 [pid 9898] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9898] chdir(".") = 0 [pid 9898] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9886] <... futex resumed>) = 0 [pid 9886] exit_group(0 [pid 9888] <... futex resumed>) = ? [pid 9886] <... exit_group resumed>) = ? [pid 9888] +++ exited with 0 +++ [pid 9898] +++ exited with 0 +++ [pid 9886] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9886, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 4998] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4998] umount2("./281", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./281", 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("./281/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9899] chdir("./282" [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9899] <... chdir resumed>) = 0 [pid 4998] lstat("./281/binderfs", [pid 9899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9899] <... prctl resumed>) = 0 [pid 4998] unlink("./281/binderfs" [pid 9899] setpgid(0, 0 [pid 4998] <... unlink resumed>) = 0 [pid 9899] <... setpgid resumed>) = 0 [pid 4998] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./282/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./282/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("./282/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./282") = 0 [pid 5000] mkdir("./283", 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 9899] <... openat resumed>) = 3 [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9899] write(3, "1000", 4 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9900 [pid 9899] <... write resumed>) = 4 [pid 9899] close(3) = 0 ./strace-static-x86_64: Process 9900 attached [pid 9899] symlink("/dev/binderfs", "./binderfs" [pid 9900] set_robust_list(0x555556b565e0, 24 [pid 9899] <... symlink resumed>) = 0 [pid 9899] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9900] <... set_robust_list resumed>) = 0 [pid 9899] <... futex resumed>) = 0 [pid 9899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9899] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9899] 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=[9901], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9901 [pid 9899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9900] chdir("./283") = 0 [pid 9900] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9900] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 9901 attached [pid 9901] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9901] memfd_create("syzkaller", 0) = 3 [pid 9901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9900] write(3, "1000", 4) = 4 [pid 9900] close(3) = 0 [pid 9900] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9900] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9900] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9900] 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=[9902], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9902 [pid 9900] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9900] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 9902 attached [pid 4998] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9902] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./281/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./281/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9902] memfd_create("syzkaller", 0 [pid 9901] 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(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 4998] rmdir("./281/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 9902] <... memfd_create resumed>) = 3 [pid 4998] rmdir("./281" [pid 9902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] <... rmdir resumed>) = 0 [pid 9902] <... mmap resumed>) = 0x7f38d9778000 [pid 9901] <... write resumed>) = 4194304 [pid 4998] mkdir("./282", 0777 [pid 9901] munmap(0x7f38d9778000, 4194304 [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 [pid 9902] 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 9901] <... munmap resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9903 [pid 9901] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9901] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9903 attached [pid 9903] set_robust_list(0x555556b565e0, 24) = 0 [pid 9901] <... ioctl resumed>) = 0 [pid 9903] chdir("./282" [pid 9901] close(3 [pid 9903] <... chdir resumed>) = 0 [pid 9901] <... close resumed>) = 0 [pid 9903] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9901] mkdir("./file0", 0777 [pid 9903] <... prctl resumed>) = 0 [pid 9903] setpgid(0, 0) = 0 [pid 9903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9903] write(3, "1000", 4 [pid 9901] <... mkdir resumed>) = 0 [pid 9903] <... write resumed>) = 4 [pid 9903] close(3 [pid 9901] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9903] <... close resumed>) = 0 [pid 9903] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9903] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9903] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9903] 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=[9905], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9905 [pid 9903] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9903] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9905 attached [pid 9902] <... write resumed>) = 4194304 [pid 9905] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9905] memfd_create("syzkaller", 0) = 3 [pid 9905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9902] munmap(0x7f38d9778000, 4194304) = 0 [pid 9902] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 280.419787][ T9901] loop5: detected capacity change from 0 to 8192 [ 280.439399][ T9901] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 280.453322][ T9901] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 280.462992][ T9901] REISERFS (device loop5): using ordered data mode [pid 9902] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9902] close(3) = 0 [pid 9902] mkdir("./file0", 0777) = 0 [pid 9902] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9905] 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 9905] munmap(0x7f38d9778000, 4194304) = 0 [pid 9905] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 280.466543][ T9902] loop2: detected capacity change from 0 to 8192 [ 280.470086][ T9901] reiserfs: using flush barriers [ 280.482718][ T9901] 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 [ 280.500119][ T9901] REISERFS (device loop5): checking transaction log (loop5) [ 280.506441][ T9902] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9905] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9905] close(3) = 0 [pid 9905] mkdir("./file0", 0777) = 0 [ 280.511276][ T9905] loop0: detected capacity change from 0 to 8192 [ 280.526834][ T9902] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 280.536584][ T9902] REISERFS (device loop2): using ordered data mode [ 280.537366][ T9901] REISERFS (device loop5): Using r5 hash to sort names [ 280.543094][ T9902] reiserfs: using flush barriers [ 280.543861][ T9902] 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 [ 280.551247][ T9905] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 280.555148][ T9902] REISERFS (device loop2): checking transaction log (loop2) [ 280.571200][ T9905] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 280.584795][ T9901] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 280.591631][ T9905] REISERFS (device loop0): using ordered data mode [ 280.601544][ T9902] REISERFS (device loop2): Using r5 hash to sort names [ 280.613312][ T9905] reiserfs: using flush barriers [ 280.620114][ T9901] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 280.627628][ T9902] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 280.631836][ T9905] 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 9905] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9901] <... mount resumed>) = 0 [pid 9902] <... mount resumed>) = 0 [pid 9901] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9902] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9901] <... openat resumed>) = 3 [pid 9901] chdir("./file0") = 0 [pid 9901] ioctl(4, LOOP_CLR_FD) = 0 [pid 9901] close(4) = 0 [pid 9902] <... openat resumed>) = 3 [pid 9901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9902] chdir("./file0" [pid 9901] <... futex resumed>) = 1 [pid 9899] <... futex resumed>) = 0 [pid 9902] <... chdir resumed>) = 0 [pid 9902] ioctl(4, LOOP_CLR_FD [pid 9901] mkdir("./file1", 000 [pid 9899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9902] <... ioctl resumed>) = 0 [pid 9901] <... mkdir resumed>) = 0 [pid 9899] <... futex resumed>) = 0 [pid 9901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9901] <... futex resumed>) = 0 [pid 9899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9901] mkdir("./bus", 000 [pid 9899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9901] <... mkdir resumed>) = 0 [pid 9899] <... futex resumed>) = 0 [pid 9901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9901] <... futex resumed>) = 0 [pid 9899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9901] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9899] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9901] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9899] <... futex resumed>) = 0 [pid 9901] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9899] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 280.640760][ T9902] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 280.679208][ T9905] REISERFS (device loop0): checking transaction log (loop0) [ 280.688154][ T9905] REISERFS (device loop0): Using r5 hash to sort names [ 280.695681][ T9905] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 280.695843][ T9901] overlayfs: upper fs needs to support d_type. [pid 9902] close(4) = 0 [pid 9905] <... mount resumed>) = 0 [pid 9902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9900] <... futex resumed>) = 0 [pid 9905] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9902] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9900] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9905] <... openat resumed>) = 3 [pid 9902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9900] <... futex resumed>) = 0 [pid 9905] chdir("./file0" [pid 9902] mkdir("./file1", 000 [pid 9900] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9905] <... chdir resumed>) = 0 [pid 9905] ioctl(4, LOOP_CLR_FD [pid 9902] <... mkdir resumed>) = 0 [pid 9905] <... ioctl resumed>) = 0 [pid 9902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9905] close(4 [pid 9902] <... futex resumed>) = 1 [pid 9900] <... futex resumed>) = 0 [pid 9905] <... close resumed>) = 0 [pid 9902] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9900] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9905] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9900] <... futex resumed>) = 0 [pid 9905] <... futex resumed>) = 1 [pid 9903] <... futex resumed>) = 0 [pid 9902] mkdir("./bus", 000 [pid 9900] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9905] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9903] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9903] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9902] <... mkdir resumed>) = 0 [pid 9899] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9899] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9899] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9899] 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=[9908], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9908 [pid 9899] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9899] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9905] mkdir("./file1", 000 [pid 9902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9905] <... mkdir resumed>) = 0 [pid 9902] <... futex resumed>) = 1 [pid 9900] <... futex resumed>) = 0 [pid 9905] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9902] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9900] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9905] <... futex resumed>) = 1 [pid 9903] <... futex resumed>) = 0 [pid 9902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9900] <... futex resumed>) = 0 [pid 9905] mkdir("./bus", 000 [pid 9903] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9902] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9900] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9905] <... mkdir resumed>) = 0 [pid 9903] <... futex resumed>) = 0 [pid 9905] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9903] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9908 attached [pid 9905] <... futex resumed>) = 0 [pid 9903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9905] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9903] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9903] <... futex resumed>) = 0 [pid 9908] set_robust_list(0x7f38d9b779e0, 24 [pid 9905] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9903] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9908] <... set_robust_list resumed>) = 0 [pid 9908] mkdir(".", 0777) = -1 EEXIST (File exists) [ 280.708443][ T9905] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 280.724194][ T9901] overlayfs: upper fs does not support tmpfile. [ 280.731408][ T9901] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 280.742240][ T9901] overlayfs: failed to resolve './file0': -2 [ 280.755717][ T9902] overlayfs: upper fs needs to support d_type. [pid 9908] 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 9901] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9901] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9901] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9908] <... mount resumed>) = 0 [pid 9908] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9908] chdir(".") = 0 [pid 9908] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9899] <... futex resumed>) = 0 [pid 9908] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9899] exit_group(0 [pid 9908] <... futex resumed>) = ? [pid 9901] <... futex resumed>) = ? [pid 9899] <... exit_group resumed>) = ? [pid 9908] +++ exited with 0 +++ [pid 9901] +++ exited with 0 +++ [pid 9899] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9899, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./282", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./282", 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("./282/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9900] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5003] lstat("./282/binderfs", [pid 9900] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9900] <... futex resumed>) = 0 [pid 5003] unlink("./282/binderfs" [pid 9900] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5003] <... unlink resumed>) = 0 [pid 9900] <... mmap resumed>) = 0x7f38d9b57000 [pid 5003] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9900] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [ 280.777351][ T9905] overlayfs: upper fs needs to support d_type. [ 280.779433][ T9902] overlayfs: upper fs does not support tmpfile. [ 280.804482][ T9905] overlayfs: upper fs does not support tmpfile. [ 280.814881][ T9902] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9900] 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 9903] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9900] <... clone resumed>, parent_tid=[9909], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9909 [pid 9900] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9900] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9909 attached [pid 9903] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9903] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9903] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9903] 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=[9910], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9910 [pid 9903] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9909] set_robust_list(0x7f38d9b779e0, 24 [pid 9903] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9909] <... set_robust_list resumed>) = 0 [pid 9909] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9909] 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 9910 attached [pid 9910] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9910] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9910] 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 9902] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9902] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9902] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9909] <... mount resumed>) = 0 [pid 9909] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9909] chdir(".") = 0 [pid 9909] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9900] <... futex resumed>) = 0 [pid 9909] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9900] exit_group(0 [pid 9909] <... futex resumed>) = ? [pid 9902] <... futex resumed>) = ? [pid 9900] <... exit_group resumed>) = ? [pid 9909] +++ exited with 0 +++ [pid 9902] +++ exited with 0 +++ [pid 9900] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9900, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5000] umount2("./283", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9910] <... mount resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./283", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9910] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5000] <... openat resumed>) = 3 [pid 9910] <... openat resumed>) = 4 [pid 5000] fstat(3, [pid 9910] chdir("." [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9910] <... chdir resumed>) = 0 [pid 5000] getdents64(3, [pid 9910] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9910] <... futex resumed>) = 1 [pid 9903] <... futex resumed>) = 0 [pid 5000] umount2("./283/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9910] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./283/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./283/binderfs") = 0 [pid 5000] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9905] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9905] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9903] exit_group(0 [pid 9910] <... futex resumed>) = ? [pid 9905] <... futex resumed>) = ? [pid 9903] <... exit_group resumed>) = ? [pid 9910] +++ exited with 0 +++ [pid 9905] +++ exited with 0 +++ [pid 9903] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9903, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] umount2("./282", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./282", 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 [ 280.815308][ T9905] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 280.830798][ T9902] overlayfs: failed to resolve './file0': -2 [ 280.834094][ T9905] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./282/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./282/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./282/binderfs") = 0 [pid 4998] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./282/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./282/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("./282/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./282") = 0 [pid 5003] mkdir("./283", 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) = 9911 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./283/file0", ./strace-static-x86_64: Process 9911 attached [pid 9911] set_robust_list(0x555556b565e0, 24) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9911] chdir("./283" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9911] <... chdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./283/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9911] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5000] <... openat resumed>) = 4 [pid 9911] <... prctl resumed>) = 0 [pid 9911] setpgid(0, 0) = 0 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] getdents64(4, [pid 9911] <... openat resumed>) = 3 [pid 9911] write(3, "1000", 4 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9911] <... write resumed>) = 4 [pid 9911] close(3) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9911] symlink("/dev/binderfs", "./binderfs" [pid 5000] close(4 [pid 9911] <... symlink resumed>) = 0 [pid 9911] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... close resumed>) = 0 [pid 9911] <... futex resumed>) = 0 [pid 5000] rmdir("./283/file0" [pid 9911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9911] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, [pid 9911] <... mprotect resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9911] 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=[9912], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9912 [pid 9911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] <... umount2 resumed>) = 0 [pid 5000] close(3 [pid 4998] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9912 attached [pid 5000] <... close resumed>) = 0 [pid 5000] rmdir("./283" [pid 9912] set_robust_list(0x7f38e1b989e0, 24 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9912] <... set_robust_list resumed>) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./284", 0777 [pid 9912] memfd_create("syzkaller", 0 [pid 4998] lstat("./282/file0", [pid 5000] <... mkdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9912] <... memfd_create resumed>) = 3 [pid 5000] <... openat resumed>) = 3 [pid 4998] umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9912] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] openat(AT_FDCWD, "./282/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] close(3) = 0 [pid 4998] <... openat resumed>) = 4 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9913 ./strace-static-x86_64: Process 9913 attached [pid 9913] set_robust_list(0x555556b565e0, 24) = 0 [pid 9913] chdir("./284") = 0 [pid 9913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9913] setpgid(0, 0) = 0 [pid 9913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9913] write(3, "1000", 4) = 4 [pid 9913] close(3) = 0 [pid 9913] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9913] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9913] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9913] 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=[9914], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9914 [pid 9913] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9913] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9914 attached [pid 9914] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 9912] <... mmap resumed>) = 0x7f38d9778000 [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4 [pid 9914] memfd_create("syzkaller", 0 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./282/file0" [pid 9914] <... memfd_create resumed>) = 3 [pid 9914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./282") = 0 [pid 4998] mkdir("./283", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9914] <... mmap resumed>) = 0x7f38d9778000 [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) = 9915 ./strace-static-x86_64: Process 9915 attached [pid 9915] set_robust_list(0x555556b565e0, 24) = 0 [pid 9915] chdir("./283") = 0 [pid 9915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9915] setpgid(0, 0) = 0 [pid 9915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9915] write(3, "1000", 4) = 4 [pid 9915] close(3) = 0 [pid 9915] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9915] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9915] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9915] 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=[9916], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9916 [pid 9915] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9915] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9916 attached [pid 9916] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9916] memfd_create("syzkaller", 0) = 3 [pid 9916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9914] 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 9912] 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 9916] 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 9912] <... write resumed>) = 4194304 [pid 9912] munmap(0x7f38d9778000, 4194304) = 0 [pid 9912] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9912] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9912] close(3) = 0 [pid 9912] mkdir("./file0", 0777) = 0 [pid 9912] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9914] <... write resumed>) = 4194304 [pid 9914] munmap(0x7f38d9778000, 4194304) = 0 [pid 9914] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9914] ioctl(4, LOOP_SET_FD, 3 [pid 9916] <... write resumed>) = 4194304 [pid 9916] munmap(0x7f38d9778000, 4194304) = 0 [pid 9916] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9916] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9916] close(3) = 0 [pid 9916] mkdir("./file0", 0777) = 0 [pid 9916] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9914] <... ioctl resumed>) = 0 [pid 9914] close(3) = 0 [pid 9914] mkdir("./file0", 0777) = 0 [ 281.066556][ T9912] loop5: detected capacity change from 0 to 8192 [ 281.083453][ T9914] loop2: detected capacity change from 0 to 8192 [ 281.089139][ T9916] loop0: detected capacity change from 0 to 8192 [ 281.090493][ T9912] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 281.102384][ T9916] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 281.122135][ T9912] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 281.122245][ T9912] REISERFS (device loop5): using ordered data mode [ 281.131286][ T9916] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 281.131362][ T9916] REISERFS (device loop0): using ordered data mode [ 281.147546][ T9914] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 281.154154][ T9916] reiserfs: using flush barriers [ 281.172205][ T9912] reiserfs: using flush barriers [ 281.172907][ T9914] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 281.178490][ T9912] 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 [ 281.186622][ T9916] 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 [ 281.203506][ T9912] REISERFS (device loop5): checking transaction log (loop5) [ 281.219149][ T9914] REISERFS (device loop2): using ordered data mode [ 281.227368][ T9912] REISERFS (device loop5): Using r5 hash to sort names [ 281.232823][ T9914] reiserfs: using flush barriers [ 281.240341][ T9916] REISERFS (device loop0): checking transaction log (loop0) [ 281.245516][ T9912] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 281.253246][ T9916] REISERFS (device loop0): Using r5 hash to sort names [ 281.264728][ T9914] 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 [ 281.272277][ T9916] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 281.287970][ T9914] REISERFS (device loop2): checking transaction log (loop2) [ 281.308743][ T9912] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9914] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9912] <... mount resumed>) = 0 [pid 9912] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9912] chdir("./file0") = 0 [pid 9912] ioctl(4, LOOP_CLR_FD) = 0 [pid 9912] close(4) = 0 [pid 9912] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9911] <... futex resumed>) = 0 [pid 9911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9912] <... futex resumed>) = 1 [pid 9912] mkdir("./file1", 000) = 0 [pid 9912] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9911] <... futex resumed>) = 0 [pid 9911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9912] <... futex resumed>) = 1 [pid 9912] mkdir("./bus", 000) = 0 [pid 9912] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9911] <... futex resumed>) = 0 [pid 9911] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9912] <... futex resumed>) = 1 [pid 9912] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9916] <... mount resumed>) = 0 [pid 9914] <... mount resumed>) = 0 [pid 9914] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9914] chdir("./file0") = 0 [pid 9914] ioctl(4, LOOP_CLR_FD) = 0 [pid 9914] close(4) = 0 [pid 9914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9913] <... futex resumed>) = 0 [pid 9914] mkdir("./file1", 000 [pid 9913] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9914] <... mkdir resumed>) = 0 [pid 9913] <... futex resumed>) = 0 [pid 9914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9913] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9914] <... futex resumed>) = 0 [pid 9913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9914] mkdir("./bus", 000 [pid 9913] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9914] <... mkdir resumed>) = 0 [pid 9913] <... futex resumed>) = 0 [pid 9914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9913] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9914] <... futex resumed>) = 0 [pid 9913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9914] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9913] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 281.309033][ T9914] REISERFS (device loop2): Using r5 hash to sort names [ 281.325579][ T9914] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 281.335447][ T9916] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 281.339213][ T9914] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 281.348212][ T9912] overlayfs: upper fs needs to support d_type. [pid 9913] <... futex resumed>) = 0 [pid 9914] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9913] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9916] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9916] chdir("./file0" [pid 9911] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9911] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9911] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9911] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9916] <... chdir resumed>) = 0 [pid 9911] <... mprotect resumed>) = 0 [pid 9916] ioctl(4, LOOP_CLR_FD [pid 9911] 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 9916] <... ioctl resumed>) = 0 [pid 9916] close(4 [pid 9911] <... clone resumed>, parent_tid=[9920], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9920 [pid 9916] <... close resumed>) = 0 [pid 9911] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9916] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9911] <... futex resumed>) = 0 [pid 9916] <... futex resumed>) = 1 [pid 9915] <... futex resumed>) = 0 [pid 9911] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9916] mkdir("./file1", 000 [pid 9915] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9916] <... mkdir resumed>) = 0 [pid 9915] <... futex resumed>) = 0 [pid 9916] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9915] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9916] <... futex resumed>) = 0 [pid 9915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 9920 attached [pid 9916] mkdir("./bus", 000 [pid 9915] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9916] <... mkdir resumed>) = 0 [pid 9916] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9916] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9920] set_robust_list(0x7f38d9b779e0, 24 [pid 9916] <... futex resumed>) = 0 [pid 9915] <... futex resumed>) = 1 [pid 9920] <... set_robust_list resumed>) = 0 [pid 9915] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9920] mkdir(".", 0777 [pid 9915] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9920] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9916] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9915] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9920] 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 9915] <... futex resumed>) = 0 [ 281.372775][ T9914] overlayfs: upper fs needs to support d_type. [ 281.393159][ T9914] overlayfs: upper fs does not support tmpfile. [ 281.401146][ T9912] overlayfs: upper fs does not support tmpfile. [ 281.404658][ T9914] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9920] <... mount resumed>) = 0 [pid 9915] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9913] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9913] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9913] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9913] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9913] 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=[9921], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9921 [pid 9913] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9913] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9920] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9920] chdir(".") = 0 [pid 9920] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9911] <... futex resumed>) = 0 [pid 9920] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9921 attached [pid 9921] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9921] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9921] 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 9921] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9921] chdir(".") = 0 [pid 9912] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9914] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9912] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9914] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9912] <... futex resumed>) = 0 [pid 9914] <... futex resumed>) = 0 [pid 9912] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9914] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9921] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9913] <... futex resumed>) = 0 [pid 9913] exit_group(0) = ? [pid 9921] <... futex resumed>) = ? [pid 9921] +++ exited with 0 +++ [pid 9914] <... futex resumed>) = ? [pid 9916] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9911] exit_group(0 [pid 9920] <... futex resumed>) = ? [pid 9912] <... futex resumed>) = ? [pid 9911] <... exit_group resumed>) = ? [pid 9920] +++ exited with 0 +++ [pid 9916] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9914] +++ exited with 0 +++ [pid 9913] +++ exited with 0 +++ [pid 9912] +++ exited with 0 +++ [pid 9911] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9913, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 9916] <... futex resumed>) = 1 [pid 9915] <... futex resumed>) = 0 [pid 9916] mkdir(".", 0777 [pid 9915] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9915] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9911, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 9916] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5003] umount2("./283", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9916] 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] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./283", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, [pid 5000] umount2("./284", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] openat(AT_FDCWD, "./284", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5003] getdents64(3, [pid 5000] <... openat resumed>) = 3 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 5003] umount2("./283/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] umount2("./284/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./284/binderfs", [pid 5003] lstat("./283/binderfs", [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9916] <... mount resumed>) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./284/binderfs" [pid 5003] unlink("./283/binderfs" [pid 9916] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5000] <... unlink resumed>) = 0 [pid 9916] <... openat resumed>) = 4 [pid 5003] <... unlink resumed>) = 0 [pid 5000] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9916] chdir(".") = 0 [pid 9916] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9915] <... futex resumed>) = 0 [pid 9916] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9915] exit_group(0 [pid 9916] <... futex resumed>) = ? [pid 9915] <... exit_group resumed>) = ? [pid 9916] +++ exited with 0 +++ [pid 9915] +++ exited with 0 +++ [ 281.417563][ T9916] overlayfs: upper fs needs to support d_type. [ 281.423751][ T9916] overlayfs: upper fs does not support tmpfile. [ 281.426422][ T9912] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 281.440284][ T9914] overlayfs: failed to resolve './file0': -2 [ 281.445270][ T9912] overlayfs: failed to resolve './file0': -2 [ 281.454968][ T9916] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 281.463872][ T9916] overlayfs: failed to resolve './file0': -2 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9915, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 4998] umount2("./283", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./283", 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("./283/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./283/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./283/binderfs") = 0 [pid 4998] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./284/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./284/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("./284/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./284") = 0 [pid 5000] mkdir("./285", 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) = 9922 ./strace-static-x86_64: Process 9922 attached [pid 9922] set_robust_list(0x555556b565e0, 24) = 0 [pid 9922] chdir("./285") = 0 [pid 9922] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9922] setpgid(0, 0) = 0 [pid 9922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9922] write(3, "1000", 4) = 4 [pid 9922] close(3) = 0 [pid 9922] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9922] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9922] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9922] 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=[9923], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9923 [pid 9922] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9922] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9923 attached [pid 9923] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9923] memfd_create("syzkaller", 0) = 3 [pid 9923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9923] 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] <... umount2 resumed>) = 0 [pid 4998] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./283/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./283/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 4998] getdents64(4, [pid 5003] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] lstat("./283/file0", [pid 4998] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] close(4 [pid 5003] umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... close resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./283/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] rmdir("./283/file0" [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 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./283/file0") = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 5003] getdents64(3, [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3 [pid 4998] close(3) = 0 [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./283" [pid 4998] rmdir("./283") = 0 [pid 5003] <... rmdir resumed>) = 0 [pid 4998] mkdir("./284", 0777) = 0 [pid 5003] mkdir("./284", 0777) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4998] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 9923] <... write resumed>) = 4194304 [pid 5003] <... openat resumed>) = 3 [pid 4998] <... close resumed>) = 0 [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] close(3) = 0 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9924 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9925 [pid 9923] munmap(0x7f38d9778000, 4194304) = 0 [pid 9923] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 ./strace-static-x86_64: Process 9925 attached ./strace-static-x86_64: Process 9924 attached [pid 9925] set_robust_list(0x555556b565e0, 24 [pid 9923] ioctl(4, LOOP_SET_FD, 3 [pid 9925] <... set_robust_list resumed>) = 0 [pid 9924] set_robust_list(0x555556b565e0, 24 [pid 9925] chdir("./284" [pid 9923] <... ioctl resumed>) = 0 [pid 9924] <... set_robust_list resumed>) = 0 [pid 9925] <... chdir resumed>) = 0 [pid 9924] chdir("./284" [pid 9923] close(3 [pid 9924] <... chdir resumed>) = 0 [pid 9925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9924] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9925] <... prctl resumed>) = 0 [pid 9924] <... prctl resumed>) = 0 [pid 9925] setpgid(0, 0 [pid 9923] <... close resumed>) = 0 [pid 9925] <... setpgid resumed>) = 0 [pid 9924] setpgid(0, 0 [pid 9923] mkdir("./file0", 0777 [pid 9925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9924] <... setpgid resumed>) = 0 [pid 9924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9925] <... openat resumed>) = 3 [pid 9924] <... openat resumed>) = 3 [pid 9925] write(3, "1000", 4) = 4 [pid 9924] write(3, "1000", 4 [pid 9923] <... mkdir resumed>) = 0 [pid 9925] close(3 [pid 9924] <... write resumed>) = 4 [pid 9925] <... close resumed>) = 0 [pid 9924] close(3 [pid 9925] symlink("/dev/binderfs", "./binderfs" [pid 9924] <... close resumed>) = 0 [pid 9925] <... symlink resumed>) = 0 [pid 9924] symlink("/dev/binderfs", "./binderfs" [pid 9925] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... symlink resumed>) = 0 [pid 9925] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9924] <... futex resumed>) = 0 [pid 9923] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9925] <... mmap resumed>) = 0x7f38e1b78000 [pid 9924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9925] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9924] <... mmap resumed>) = 0x7f38e1b78000 [pid 9925] <... mprotect resumed>) = 0 [pid 9924] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9925] 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 9924] <... mprotect resumed>) = 0 [pid 9924] 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 9925] <... clone resumed>, parent_tid=[9926], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9926 [pid 9925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... clone resumed>, parent_tid=[9927], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9927 ./strace-static-x86_64: Process 9926 attached [pid 9925] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9924] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9927 attached [pid 9927] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9927] memfd_create("syzkaller", 0) = 3 [pid 9927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9926] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9927] 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 9926] memfd_create("syzkaller", 0) = 3 [ 281.627526][ T9923] loop2: detected capacity change from 0 to 8192 [ 281.649339][ T9923] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 281.662772][ T9923] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9926] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9927] <... write resumed>) = 4194304 [pid 9927] munmap(0x7f38d9778000, 4194304) = 0 [pid 9927] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9927] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9927] close(3) = 0 [pid 9927] mkdir("./file0", 0777) = 0 [pid 9927] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 281.673519][ T9923] REISERFS (device loop2): using ordered data mode [ 281.691022][ T9927] loop0: detected capacity change from 0 to 8192 [ 281.696095][ T9923] reiserfs: using flush barriers [ 281.704057][ T9923] 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 9926] 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 9926] munmap(0x7f38d9778000, 4194304) = 0 [pid 9926] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9926] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9926] close(3) = 0 [pid 9926] mkdir("./file0", 0777) = 0 [ 281.704311][ T9927] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 281.733729][ T9927] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 281.740966][ T9923] REISERFS (device loop2): checking transaction log (loop2) [ 281.743160][ T9927] REISERFS (device loop0): using ordered data mode [ 281.756822][ T9926] loop5: detected capacity change from 0 to 8192 [ 281.763232][ T9927] reiserfs: using flush barriers [ 281.769059][ T9927] 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 [ 281.785587][ T9927] REISERFS (device loop0): checking transaction log (loop0) [ 281.785813][ T9926] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 281.806503][ T9926] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 281.806800][ T9923] REISERFS (device loop2): Using r5 hash to sort names [ 281.815945][ T9926] REISERFS (device loop5): using ordered data mode [ 281.823211][ T9927] REISERFS (device loop0): Using r5 hash to sort names [ 281.829424][ T9926] reiserfs: using flush barriers [ 281.836814][ T9927] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 281.841996][ T9923] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9926] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9923] <... mount resumed>) = 0 [pid 9927] <... mount resumed>) = 0 [pid 9927] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9927] chdir("./file0") = 0 [pid 9927] ioctl(4, LOOP_CLR_FD) = 0 [pid 9927] close(4) = 0 [pid 9923] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9923] chdir("./file0") = 0 [pid 9923] ioctl(4, LOOP_CLR_FD) = 0 [pid 9923] close(4) = 0 [pid 9923] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9922] <... futex resumed>) = 0 [pid 9923] mkdir("./file1", 000 [pid 9922] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9923] <... mkdir resumed>) = 0 [pid 9922] <... futex resumed>) = 0 [pid 9923] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9923] <... futex resumed>) = 0 [pid 9922] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9923] mkdir("./bus", 000 [pid 9922] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9923] <... mkdir resumed>) = 0 [pid 9922] <... futex resumed>) = 0 [pid 9923] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9923] <... futex resumed>) = 0 [pid 9922] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9923] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9922] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9922] <... futex resumed>) = 0 [pid 9923] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9922] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9927] <... futex resumed>) = 1 [pid 9927] mkdir("./file1", 000) = 0 [pid 9927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9927] <... futex resumed>) = 1 [pid 9927] mkdir("./bus", 000) = 0 [pid 9927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9924] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9927] <... futex resumed>) = 1 [ 281.854666][ T9926] 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 [ 281.866272][ T9923] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 281.883522][ T9927] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 281.891885][ T9926] REISERFS (device loop5): checking transaction log (loop5) [ 281.913907][ T9923] overlayfs: upper fs needs to support d_type. [ 281.928232][ T9927] overlayfs: upper fs needs to support d_type. [ 281.934993][ T9927] overlayfs: upper fs does not support tmpfile. [ 281.942627][ T9927] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 281.946376][ T9926] REISERFS (device loop5): Using r5 hash to sort names [ 281.951171][ T9927] overlayfs: failed to resolve './file0': -2 [ 281.961679][ T9923] overlayfs: upper fs does not support tmpfile. [pid 9927] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9924] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9922] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9927] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9924] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9927] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... futex resumed>) = 0 [pid 9922] <... futex resumed>) = 0 [pid 9927] <... futex resumed>) = 0 [pid 9924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9922] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9927] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9924] <... mmap resumed>) = 0x7f38d9b57000 [pid 9922] <... mmap resumed>) = 0x7f38d9b57000 [pid 9924] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9922] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9924] <... mprotect resumed>) = 0 [pid 9922] <... mprotect resumed>) = 0 [pid 9924] 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 9922] 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 9924] <... clone resumed>, parent_tid=[9932], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9932 [pid 9922] <... clone resumed>, parent_tid=[9931], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9931 [pid 9924] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9924] <... futex resumed>) = 0 [pid 9922] <... futex resumed>) = 0 [pid 9924] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9922] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9932 attached ./strace-static-x86_64: Process 9931 attached [pid 9926] <... mount resumed>) = 0 [pid 9926] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9926] chdir("./file0") = 0 [pid 9926] ioctl(4, LOOP_CLR_FD) = 0 [pid 9926] close(4 [pid 9932] set_robust_list(0x7f38d9b779e0, 24 [pid 9931] set_robust_list(0x7f38d9b779e0, 24 [pid 9932] <... set_robust_list resumed>) = 0 [pid 9931] <... set_robust_list resumed>) = 0 [pid 9932] mkdir(".", 0777 [pid 9931] mkdir(".", 0777 [pid 9932] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9931] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9932] 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 9931] 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 9926] <... close resumed>) = 0 [pid 9926] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] <... futex resumed>) = 0 [pid 9925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9926] <... futex resumed>) = 1 [pid 9926] mkdir("./file1", 000) = 0 [pid 9926] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] <... futex resumed>) = 0 [pid 9925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9926] <... futex resumed>) = 1 [pid 9926] mkdir("./bus", 000 [pid 9932] <... mount resumed>) = 0 [pid 9926] <... mkdir resumed>) = 0 [pid 9931] <... mount resumed>) = 0 [pid 9926] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] <... futex resumed>) = 0 [pid 9925] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9925] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9932] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9931] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9932] <... openat resumed>) = 4 [pid 9926] <... futex resumed>) = 1 [pid 9926] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9932] chdir("." [pid 9931] chdir("." [pid 9932] <... chdir resumed>) = 0 [pid 9931] <... chdir resumed>) = 0 [pid 9932] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9931] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9932] <... futex resumed>) = 1 [pid 9931] <... futex resumed>) = 1 [pid 9924] <... futex resumed>) = 0 [pid 9922] <... futex resumed>) = 0 [ 281.965052][ T9926] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 281.970711][ T9923] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 281.986410][ T9926] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 281.990316][ T9923] overlayfs: failed to resolve './file0': -2 [pid 9932] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9931] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9924] exit_group(0 [pid 9927] <... futex resumed>) = ? [pid 9924] <... exit_group resumed>) = ? [pid 9927] +++ exited with 0 +++ [pid 9932] <... futex resumed>) = ? [pid 9932] +++ exited with 0 +++ [pid 9924] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9924, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] umount2("./284", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./284", 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("./284/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./284/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./284/binderfs") = 0 [pid 4998] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9923] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9923] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9922] exit_group(0) = ? [pid 9931] <... futex resumed>) = ? [pid 9923] <... futex resumed>) = ? [pid 9931] +++ exited with 0 +++ [pid 9923] +++ exited with 0 +++ [pid 9922] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9922, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5000] umount2("./285", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./285", 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("./285/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./285/binderfs") = 0 [pid 5000] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9925] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9925] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9925] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9925] 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=[9933], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9933 [pid 9926] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9925] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9926] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9925] <... futex resumed>) = 0 [pid 9926] <... futex resumed>) = 0 [pid 9925] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9926] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 9933 attached [pid 9933] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9933] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9933] 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 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./284/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./284/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("./284/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./284") = 0 [pid 4998] mkdir("./285", 0777) = 0 [ 282.020801][ T9926] overlayfs: upper fs needs to support d_type. [ 282.028448][ T9926] overlayfs: upper fs does not support tmpfile. [ 282.035911][ T9926] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 282.048457][ T9926] overlayfs: failed to resolve './file0': -2 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9933] <... mount resumed>) = 0 [pid 5000] <... umount2 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) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9933] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9934 [pid 9933] <... openat resumed>) = 4 [pid 5000] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./285/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9933] chdir("."./strace-static-x86_64: Process 9934 attached ) = 0 [pid 5000] openat(AT_FDCWD, "./285/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, [pid 9933] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./285/file0" [pid 9925] <... futex resumed>) = 0 [pid 9933] <... futex resumed>) = 1 [pid 9925] exit_group(0 [pid 9926] <... futex resumed>) = ? [pid 9925] <... exit_group resumed>) = ? [pid 9926] +++ exited with 0 +++ [pid 5000] <... rmdir resumed>) = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./285" [pid 9933] +++ exited with 0 +++ [pid 9925] +++ exited with 0 +++ [pid 9934] set_robust_list(0x555556b565e0, 24) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9925, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5000] <... rmdir resumed>) = 0 [pid 5003] umount2("./284", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] mkdir("./286", 0777 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... mkdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./284", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5003] fstat(3, [pid 5000] <... openat resumed>) = 3 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 5003] getdents64(3, [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] close(3 [pid 9934] chdir("./285" [pid 5003] umount2("./284/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9934] <... chdir resumed>) = 0 [pid 9934] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... close resumed>) = 0 [pid 5003] lstat("./284/binderfs", [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9934] setpgid(0, 0 [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./284/binderfs" [pid 9934] <... setpgid resumed>) = 0 [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9935 [pid 9934] <... openat resumed>) = 3 ./strace-static-x86_64: Process 9935 attached [pid 9934] write(3, "1000", 4 [pid 9935] set_robust_list(0x555556b565e0, 24 [pid 9934] <... write resumed>) = 4 [pid 9935] <... set_robust_list resumed>) = 0 [pid 9934] close(3 [pid 9935] chdir("./286" [pid 9934] <... close resumed>) = 0 [pid 9935] <... chdir resumed>) = 0 [pid 9934] symlink("/dev/binderfs", "./binderfs" [pid 9935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9934] <... symlink resumed>) = 0 [pid 9935] <... prctl resumed>) = 0 [pid 9934] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9935] setpgid(0, 0 [pid 9934] <... futex resumed>) = 0 [pid 9935] <... setpgid resumed>) = 0 [pid 9934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9934] <... mmap resumed>) = 0x7f38e1b78000 [pid 9935] <... openat resumed>) = 3 [pid 9934] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9935] write(3, "1000", 4 [pid 9934] <... mprotect resumed>) = 0 [pid 9935] <... write resumed>) = 4 [pid 9934] 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 9935] close(3) = 0 [pid 9934] <... clone resumed>, parent_tid=[9936], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9936 [pid 9935] symlink("/dev/binderfs", "./binderfs" [pid 9934] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9935] <... symlink resumed>) = 0 [pid 9934] <... futex resumed>) = 0 [pid 9935] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9934] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9935] <... futex resumed>) = 0 [pid 9935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9935] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9935] 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=[9937], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9937 [pid 9935] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9935] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9936 attached [pid 9936] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9936] memfd_create("syzkaller", 0) = 3 [pid 9936] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9937 attached [pid 9937] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9937] memfd_create("syzkaller", 0) = 3 [pid 9937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9936] 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("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./284/file0", [pid 9937] 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 9936] <... write resumed>) = 4194304 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9936] munmap(0x7f38d9778000, 4194304 [pid 5003] umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./284/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 9936] <... munmap resumed>) = 0 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] getdents64(4, [pid 9936] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9936] <... openat resumed>) = 4 [pid 9936] ioctl(4, LOOP_SET_FD, 3 [pid 5003] close(4) = 0 [pid 5003] rmdir("./284/file0" [pid 9936] <... ioctl resumed>) = 0 [pid 9936] close(3) = 0 [pid 9936] mkdir("./file0", 0777 [pid 5003] <... rmdir resumed>) = 0 [pid 9936] <... mkdir resumed>) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 9936] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5003] rmdir("./284") = 0 [pid 5003] mkdir("./285", 0777) = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9937] <... write resumed>) = 4194304 [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, child_tidptr=0x555556b565d0) = 9939 [pid 9937] munmap(0x7f38d9778000, 4194304) = 0 [pid 9937] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9937] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 9939 attached ) = 0 [pid 9937] close(3) = 0 [pid 9937] mkdir("./file0", 0777) = 0 [ 282.211993][ T9936] loop0: detected capacity change from 0 to 8192 [ 282.223395][ T9936] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 282.236758][ T9936] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 282.246700][ T9936] REISERFS (device loop0): using ordered data mode [ 282.252638][ T9937] loop2: detected capacity change from 0 to 8192 [pid 9937] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9939] set_robust_list(0x555556b565e0, 24) = 0 [pid 9939] chdir("./285") = 0 [pid 9939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9939] setpgid(0, 0) = 0 [pid 9939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9939] write(3, "1000", 4) = 4 [pid 9939] close(3) = 0 [pid 9939] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9939] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9939] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9939] 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=[9941], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9941 [pid 9939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9941 attached [pid 9941] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9941] memfd_create("syzkaller", 0) = 3 [pid 9941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 282.253417][ T9936] reiserfs: using flush barriers [ 282.266927][ T9936] 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 [ 282.283182][ T9937] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 282.283423][ T9936] REISERFS (device loop0): checking transaction log (loop0) [ 282.304087][ T9936] REISERFS (device loop0): Using r5 hash to sort names [pid 9941] 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 9936] <... mount resumed>) = 0 [pid 9936] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9936] chdir("./file0") = 0 [pid 9936] ioctl(4, LOOP_CLR_FD) = 0 [pid 9936] close(4) = 0 [pid 9936] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9934] <... futex resumed>) = 0 [pid 9936] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9934] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9934] <... futex resumed>) = 0 [pid 9936] mkdir("./file1", 000 [pid 9934] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9936] <... mkdir resumed>) = 0 [pid 9936] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9934] <... futex resumed>) = 0 [pid 9936] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9934] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9934] <... futex resumed>) = 0 [pid 9936] mkdir("./bus", 000 [pid 9934] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9936] <... mkdir resumed>) = 0 [pid 9941] <... write resumed>) = 4194304 [pid 9936] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9941] munmap(0x7f38d9778000, 4194304 [pid 9936] <... futex resumed>) = 1 [pid 9934] <... futex resumed>) = 0 [pid 9941] <... munmap resumed>) = 0 [pid 9936] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9934] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9941] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 9934] <... futex resumed>) = 0 [ 282.308727][ T9937] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 282.311199][ T9936] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 282.332821][ T9936] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 282.340290][ T9937] REISERFS (device loop2): using ordered data mode [pid 9941] <... openat resumed>) = 4 [pid 9934] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 282.360578][ T9937] reiserfs: using flush barriers [ 282.369561][ T9936] overlayfs: upper fs needs to support d_type. [ 282.371043][ T9937] 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 [ 282.375758][ T9936] overlayfs: upper fs does not support tmpfile. [ 282.376823][ T9936] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 282.405455][ T9941] loop5: detected capacity change from 0 to 8192 [pid 9941] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9941] close(3) = 0 [pid 9941] mkdir("./file0", 0777) = 0 [ 282.410963][ T9937] REISERFS (device loop2): checking transaction log (loop2) [ 282.412696][ T9936] overlayfs: failed to resolve './file0': -2 [ 282.420526][ T9937] REISERFS (device loop2): Using r5 hash to sort names [ 282.429993][ T9941] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 282.432360][ T9937] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9941] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9934] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9936] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9936] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9936] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9937] <... mount resumed>) = 0 [pid 9934] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9934] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9937] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9936] <... futex resumed>) = 0 [pid 9937] chdir("./file0" [pid 9936] mkdir(".", 0777 [pid 9937] <... chdir resumed>) = 0 [pid 9936] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9937] ioctl(4, LOOP_CLR_FD [pid 9936] 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 9937] <... ioctl resumed>) = 0 [pid 9937] close(4) = 0 [pid 9937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9935] <... futex resumed>) = 0 [pid 9935] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9935] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9937] <... futex resumed>) = 1 [pid 9937] mkdir("./file1", 000) = 0 [pid 9937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9935] <... futex resumed>) = 0 [pid 9935] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9935] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9937] <... futex resumed>) = 1 [pid 9937] mkdir("./bus", 000) = 0 [pid 9937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9935] <... futex resumed>) = 0 [pid 9935] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9935] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9937] <... futex resumed>) = 1 [pid 9937] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9936] <... mount resumed>) = 0 [ 282.454935][ T9941] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 282.458453][ T9937] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 282.469129][ T9941] REISERFS (device loop5): using ordered data mode [ 282.483584][ T9941] reiserfs: using flush barriers [ 282.494806][ T9941] 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 9936] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9936] chdir(".") = 0 [pid 9936] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9934] <... futex resumed>) = 0 [pid 9936] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9934] exit_group(0 [pid 9936] <... futex resumed>) = ? [pid 9934] <... exit_group resumed>) = ? [pid 9936] +++ exited with 0 +++ [pid 9934] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9934, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4998] umount2("./285", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./285", 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("./285/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./285/binderfs") = 0 [pid 4998] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9935] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9935] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9935] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9935] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9935] 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=[9943], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9943 [pid 9935] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9935] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9943 attached [pid 9937] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9943] set_robust_list(0x7f38d9b779e0, 24 [pid 9937] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9937] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9943] <... set_robust_list resumed>) = 0 [ 282.512084][ T9937] overlayfs: upper fs needs to support d_type. [ 282.518458][ T9937] overlayfs: upper fs does not support tmpfile. [ 282.525137][ T9937] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 282.533091][ T9937] overlayfs: failed to resolve './file0': -2 [ 282.533918][ T9941] REISERFS (device loop5): checking transaction log (loop5) [pid 9943] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9943] 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 4998] <... umount2 resumed>) = 0 [pid 4998] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./285/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./285/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("./285/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./285" [pid 9943] <... mount resumed>) = 0 [pid 9943] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9943] chdir(".") = 0 [pid 9943] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9935] <... futex resumed>) = 0 [pid 9935] exit_group(0 [pid 9937] <... futex resumed>) = ? [pid 9935] <... exit_group resumed>) = ? [pid 9937] +++ exited with 0 +++ [pid 9943] <... futex resumed>) = ? [pid 9943] +++ exited with 0 +++ [pid 9935] +++ exited with 0 +++ [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./286", 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 9941] <... mount resumed>) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9935, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 4998] <... close resumed>) = 0 [pid 5000] umount2("./286", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./286", 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("./286/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./286/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./286/binderfs") = 0 [pid 5000] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9941] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9941] chdir("./file0") = 0 [pid 9941] ioctl(4, LOOP_CLR_FD) = 0 [pid 9941] close(4) = 0 [pid 9941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9939] <... futex resumed>) = 0 [pid 9941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9939] <... futex resumed>) = 0 [pid 9941] mkdir("./file1", 000 [pid 9939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9941] <... mkdir resumed>) = 0 [pid 9941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9944 [pid 9941] <... futex resumed>) = 1 [pid 9939] <... futex resumed>) = 0 [pid 9941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9941] mkdir("./bus", 000 [pid 9939] <... futex resumed>) = 0 [pid 9939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9941] <... mkdir resumed>) = 0 [pid 9941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9939] <... futex resumed>) = 0 [pid 9941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9939] <... futex resumed>) = 0 [pid 9941] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 9944 attached [pid 9944] set_robust_list(0x555556b565e0, 24) = 0 [pid 9944] chdir("./286") = 0 [pid 9944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 282.566638][ T9941] REISERFS (device loop5): Using r5 hash to sort names [ 282.574450][ T9941] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 282.587888][ T9941] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 282.609353][ T9941] overlayfs: upper fs needs to support d_type. [pid 9944] setpgid(0, 0) = 0 [pid 9944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9944] write(3, "1000", 4) = 4 [pid 9944] close(3) = 0 [pid 9944] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9944] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9944] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9944] 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=[9945], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9945 [pid 9944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9945 attached [pid 9945] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9945] memfd_create("syzkaller", 0) = 3 [pid 9945] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9941] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9939] <... futex resumed>) = 0 [pid 9939] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9939] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9941] <... futex resumed>) = 0 [pid 9941] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9941] 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 9941] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9941] chdir(".") = 0 [pid 9941] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9939] <... futex resumed>) = 0 [pid 9941] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9939] exit_group(0 [pid 9941] <... futex resumed>) = ? [pid 9939] <... exit_group resumed>) = ? [pid 9941] +++ exited with 0 +++ [pid 9939] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9939, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./285", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./285", 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("./285/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./285/binderfs") = 0 [ 282.621570][ T9941] overlayfs: upper fs does not support tmpfile. [ 282.629706][ T9941] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 282.640721][ T9941] overlayfs: failed to resolve './file0': -2 [pid 5003] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./286/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./286/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("./286/file0") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./286") = 0 [pid 5000] mkdir("./287", 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 9945] 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] <... close resumed>) = 0 [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./285/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./285/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9946 [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("./285/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./285") = 0 [pid 5003] mkdir("./286", 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./strace-static-x86_64: Process 9946 attached [pid 9945] <... write resumed>) = 4194304 [pid 5003] <... close resumed>) = 0 [pid 9945] munmap(0x7f38d9778000, 4194304 [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 9947 attached [pid 9946] set_robust_list(0x555556b565e0, 24 [pid 9945] <... munmap resumed>) = 0 [pid 9946] <... set_robust_list resumed>) = 0 [pid 9945] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9947 [pid 9947] set_robust_list(0x555556b565e0, 24 [pid 9946] chdir("./287" [pid 9947] <... set_robust_list resumed>) = 0 [pid 9947] chdir("./286" [pid 9946] <... chdir resumed>) = 0 [pid 9947] <... chdir resumed>) = 0 [pid 9947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9947] setpgid(0, 0) = 0 [pid 9946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9946] <... prctl resumed>) = 0 [pid 9947] <... openat resumed>) = 3 [pid 9947] write(3, "1000", 4) = 4 [pid 9947] close(3) = 0 [pid 9947] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9946] setpgid(0, 0 [pid 9945] <... openat resumed>) = 4 [pid 9946] <... setpgid resumed>) = 0 [pid 9947] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9945] ioctl(4, LOOP_SET_FD, 3 [pid 9947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9947] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9946] <... openat resumed>) = 3 [pid 9947] 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=[9948], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9948 [pid 9947] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9947] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9948 attached [pid 9948] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9948] memfd_create("syzkaller", 0) = 3 [pid 9948] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9946] write(3, "1000", 4) = 4 [pid 9946] close(3 [pid 9945] <... ioctl resumed>) = 0 [pid 9946] <... close resumed>) = 0 [pid 9946] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9946] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9945] close(3 [pid 9946] <... futex resumed>) = 0 [pid 9945] <... close resumed>) = 0 [pid 9946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9946] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9945] mkdir("./file0", 0777 [pid 9946] <... mprotect resumed>) = 0 [pid 9946] 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=[9949], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9949 [pid 9946] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9946] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9945] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 9949 attached [pid 9949] set_robust_list(0x7f38e1b989e0, 24 [pid 9945] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9949] <... set_robust_list resumed>) = 0 [pid 9949] memfd_create("syzkaller", 0 [pid 9948] 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 9949] <... memfd_create resumed>) = 3 [pid 9949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 282.765475][ T9945] loop0: detected capacity change from 0 to 8192 [ 282.785062][ T9945] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 282.798955][ T9945] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 282.808475][ T9945] REISERFS (device loop0): using ordered data mode [pid 9949] 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 9948] <... write resumed>) = 4194304 [pid 9948] munmap(0x7f38d9778000, 4194304) = 0 [pid 9948] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9948] ioctl(4, LOOP_SET_FD, 3 [pid 9949] <... write resumed>) = 4194304 [pid 9949] munmap(0x7f38d9778000, 4194304) = 0 [ 282.815095][ T9945] reiserfs: using flush barriers [ 282.821677][ T9945] 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 [ 282.851536][ T9945] REISERFS (device loop0): checking transaction log (loop0) [pid 9949] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9949] ioctl(4, LOOP_SET_FD, 3 [pid 9948] <... ioctl resumed>) = 0 [pid 9949] <... ioctl resumed>) = 0 [pid 9949] close(3) = 0 [pid 9949] mkdir("./file0", 0777) = 0 [pid 9949] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9948] close(3) = 0 [pid 9948] mkdir("./file0", 0777) = 0 [ 282.861582][ T9948] loop5: detected capacity change from 0 to 8192 [ 282.866309][ T9949] loop2: detected capacity change from 0 to 8192 [ 282.869360][ T9945] REISERFS (device loop0): Using r5 hash to sort names [ 282.880225][ T9949] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 282.881784][ T9945] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9948] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9945] <... mount resumed>) = 0 [ 282.895639][ T9948] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 282.907028][ T9949] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 282.921244][ T9948] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 282.930212][ T9945] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 282.948760][ T9949] REISERFS (device loop2): using ordered data mode [ 282.955935][ T9948] REISERFS (device loop5): using ordered data mode [pid 9945] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9945] chdir("./file0") = 0 [pid 9945] ioctl(4, LOOP_CLR_FD) = 0 [pid 9945] close(4) = 0 [pid 9945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9945] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9944] <... futex resumed>) = 0 [pid 9944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9945] <... futex resumed>) = 0 [pid 9944] <... futex resumed>) = 1 [pid 9945] mkdir("./file1", 000 [pid 9944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9945] <... mkdir resumed>) = 0 [pid 9945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9944] <... futex resumed>) = 0 [pid 9945] mkdir("./bus", 000 [pid 9944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9945] <... mkdir resumed>) = 0 [pid 9944] <... futex resumed>) = 0 [pid 9945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9945] <... futex resumed>) = 0 [pid 9944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9945] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9944] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 282.956154][ T9949] reiserfs: using flush barriers [ 282.963917][ T9948] reiserfs: using flush barriers [ 282.970671][ T9949] 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 [ 282.989424][ T9949] REISERFS (device loop2): checking transaction log (loop2) [ 282.993695][ T9948] 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 9944] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 9944] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9944] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9944] 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=[9953], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9953 [pid 9944] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9944] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9953 attached [pid 9953] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9953] mkdir(".", 0777) = -1 EEXIST (File exists) [ 283.003222][ T9945] overlayfs: upper fs needs to support d_type. [ 283.013242][ T9948] REISERFS (device loop5): checking transaction log (loop5) [ 283.020797][ T9949] REISERFS (device loop2): Using r5 hash to sort names [ 283.026958][ T9945] overlayfs: upper fs does not support tmpfile. [ 283.034352][ T9949] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 283.040434][ T9945] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 283.059952][ T9948] REISERFS (device loop5): Using r5 hash to sort names [pid 9953] 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 9949] <... mount resumed>) = 0 [pid 9949] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9949] chdir("./file0") = 0 [pid 9949] ioctl(4, LOOP_CLR_FD) = 0 [pid 9949] close(4) = 0 [pid 9949] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9946] <... futex resumed>) = 0 [pid 9946] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9946] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9949] <... futex resumed>) = 1 [pid 9949] mkdir("./file1", 000) = 0 [pid 9949] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9946] <... futex resumed>) = 0 [pid 9946] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9946] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9949] <... futex resumed>) = 1 [pid 9949] mkdir("./bus", 000) = 0 [pid 9949] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9946] <... futex resumed>) = 0 [pid 9946] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9946] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9949] <... futex resumed>) = 1 [ 283.063605][ T9949] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 283.067007][ T9948] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 283.096540][ T9945] overlayfs: failed to resolve './file0': -2 [ 283.098799][ T9948] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9949] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9953] <... mount resumed>) = 0 [pid 9953] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9953] chdir(".") = 0 [pid 9953] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9953] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9944] <... futex resumed>) = 0 [pid 9945] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9945] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9945] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9944] exit_group(0) = ? [pid 9953] <... futex resumed>) = ? [pid 9953] +++ exited with 0 +++ [pid 9945] <... futex resumed>) = ? [pid 9945] +++ exited with 0 +++ [pid 9944] +++ exited with 0 +++ [pid 9948] <... mount resumed>) = 0 [pid 9948] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9948] chdir("./file0") = 0 [pid 9948] ioctl(4, LOOP_CLR_FD) = 0 [pid 9948] close(4 [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9944, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 4998] umount2("./286", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./286", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4998] fstat(3, [pid 9946] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9948] <... close resumed>) = 0 [pid 9948] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9947] <... futex resumed>) = 0 [pid 9947] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9947] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9948] <... futex resumed>) = 1 [pid 9948] mkdir("./file1", 000) = 0 [pid 9948] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9947] <... futex resumed>) = 0 [pid 9947] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9947] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9948] <... futex resumed>) = 1 [pid 9946] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] getdents64(3, [pid 9946] <... futex resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 9948] mkdir("./bus", 000) = 0 [pid 9948] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9947] <... futex resumed>) = 0 [pid 9947] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9947] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9948] <... futex resumed>) = 1 [pid 9948] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [ 283.112030][ T9949] overlayfs: upper fs needs to support d_type. [ 283.126192][ T9949] overlayfs: upper fs does not support tmpfile. [ 283.133628][ T9949] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 283.144757][ T9949] overlayfs: failed to resolve './file0': -2 [pid 4998] umount2("./286/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9946] <... mmap resumed>) = 0x7f38d9b57000 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9946] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9946] 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 4998] lstat("./286/binderfs", [pid 9946] <... clone resumed>, parent_tid=[9954], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9954 [pid 9946] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9946] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9954 attached [pid 9954] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9954] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9954] 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 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./286/binderfs") = 0 [pid 4998] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9949] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9949] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9949] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9954] <... mount resumed>) = 0 [pid 9954] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9954] chdir(".") = 0 [pid 9954] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9946] <... futex resumed>) = 0 [pid 9946] exit_group(0 [pid 9949] <... futex resumed>) = ? [pid 9946] <... exit_group resumed>) = ? [pid 9954] <... futex resumed>) = ? [pid 9949] +++ exited with 0 +++ [pid 9948] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9947] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9947] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9954] +++ exited with 0 +++ [pid 9948] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9946] +++ exited with 0 +++ [pid 9948] <... futex resumed>) = 0 [pid 9947] <... mmap resumed>) = 0x7f38d9b57000 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9946, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 9948] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9947] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9947] 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("./287", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 9955 attached ) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = 0 [pid 9955] set_robust_list(0x7f38d9b779e0, 24 [pid 9947] <... clone resumed>, parent_tid=[9955], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9955 [pid 5000] openat(AT_FDCWD, "./287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9955] <... set_robust_list resumed>) = 0 [pid 9947] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9955] mkdir(".", 0777 [pid 9947] <... futex resumed>) = 0 [pid 5000] fstat(3, [pid 4998] lstat("./286/file0", [pid 9955] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9947] 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] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9955] 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 5000] getdents64(3, [pid 4998] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./286/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 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] close(4 [pid 5000] umount2("./287/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... close resumed>) = 0 [pid 9955] <... mount resumed>) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] rmdir("./286/file0" [pid 9955] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 5000] lstat("./287/binderfs", [pid 4998] <... rmdir resumed>) = 0 [pid 9955] <... openat resumed>) = 4 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] getdents64(3, [pid 9955] chdir("." [pid 5000] unlink("./287/binderfs" [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 9955] <... chdir resumed>) = 0 [pid 4998] close(3 [pid 9955] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... unlink resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 9955] <... futex resumed>) = 1 [pid 9947] <... futex resumed>) = 0 [pid 5000] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 283.164773][ T9948] overlayfs: upper fs needs to support d_type. [ 283.171440][ T9948] overlayfs: upper fs does not support tmpfile. [ 283.179171][ T9948] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 283.188795][ T9948] overlayfs: failed to resolve './file0': -2 [pid 4998] rmdir("./286" [pid 9955] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9947] exit_group(0 [pid 4998] <... rmdir resumed>) = 0 [pid 9955] <... futex resumed>) = ? [pid 9948] <... futex resumed>) = ? [pid 9947] <... exit_group resumed>) = ? [pid 4998] mkdir("./287", 0777 [pid 9955] +++ exited with 0 +++ [pid 9948] +++ exited with 0 +++ [pid 9947] +++ exited with 0 +++ [pid 4998] <... mkdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9947, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5003] umount2("./286", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] close(3 [pid 5003] openat(AT_FDCWD, "./286", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... close resumed>) = 0 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... openat resumed>) = 3 [pid 5003] fstat(3, [pid 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9956 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 4 entries */, 32768) = 112 ./strace-static-x86_64: Process 9956 attached [pid 5003] umount2("./286/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9956] set_robust_list(0x555556b565e0, 24 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 9956] <... set_robust_list resumed>) = 0 [pid 5003] lstat("./286/binderfs", [pid 9956] chdir("./287" [pid 5003] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 9956] <... chdir resumed>) = 0 [pid 5003] unlink("./286/binderfs" [pid 9956] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9956] <... prctl resumed>) = 0 [pid 9956] setpgid(0, 0) = 0 [pid 9956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9956] write(3, "1000", 4) = 4 [pid 9956] close(3) = 0 [pid 9956] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9956] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9956] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9956] 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=[9957], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9957 [pid 9956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9957 attached [pid 9957] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9957] memfd_create("syzkaller", 0) = 3 [pid 9957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9957] 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("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./286/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./286/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 5000] <... umount2 resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] rmdir("./286/file0" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... rmdir resumed>) = 0 [pid 5000] lstat("./287/file0", [pid 5003] getdents64(3, [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] close(3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... close resumed>) = 0 [pid 5003] rmdir("./286") = 0 [pid 5000] openat(AT_FDCWD, "./287/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 5003] mkdir("./287", 0777 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5003] <... mkdir resumed>) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./287/file0") = 0 [pid 5003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5000] getdents64(3, [pid 5003] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3 [pid 5003] close(3 [pid 5000] <... close resumed>) = 0 [pid 5003] <... close resumed>) = 0 [pid 5000] rmdir("./287" [pid 5003] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5000] <... rmdir resumed>) = 0 [pid 5000] mkdir("./288", 0777) = 0 [pid 5003] <... clone resumed>, child_tidptr=0x555556b565d0) = 9958 [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) = 9959 ./strace-static-x86_64: Process 9959 attached [pid 9959] set_robust_list(0x555556b565e0, 24) = 0 [pid 9959] chdir("./288") = 0 [pid 9959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9959] setpgid(0, 0) = 0 [pid 9959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9959] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 9958 attached [pid 9959] close(3) = 0 [pid 9959] symlink("/dev/binderfs", "./binderfs" [pid 9958] set_robust_list(0x555556b565e0, 24) = 0 [pid 9959] <... symlink resumed>) = 0 [pid 9958] chdir("./287") = 0 [pid 9958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 9959] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9958] <... prctl resumed>) = 0 [pid 9959] <... futex resumed>) = 0 [pid 9958] setpgid(0, 0 [pid 9959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9958] <... setpgid resumed>) = 0 [pid 9959] <... mmap resumed>) = 0x7f38e1b78000 [pid 9959] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 9959] 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=[9960], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9960 [pid 9958] <... openat resumed>) = 3 [pid 9959] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9959] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9958] write(3, "1000", 4) = 4 [pid 9958] close(3) = 0 [pid 9958] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9958] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 9960 attached [pid 9960] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9960] memfd_create("syzkaller", 0) = 3 [pid 9958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9958] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9960] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9958] <... mprotect resumed>) = 0 [pid 9958] 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=[9961], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9961 [pid 9958] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 9961 attached ) = 0 [pid 9957] <... write resumed>) = 4194304 [pid 9961] set_robust_list(0x7f38e1b989e0, 24 [pid 9960] <... mmap resumed>) = 0x7f38d9778000 [pid 9958] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9957] munmap(0x7f38d9778000, 4194304 [pid 9961] <... set_robust_list resumed>) = 0 [pid 9961] memfd_create("syzkaller", 0 [pid 9957] <... munmap resumed>) = 0 [pid 9961] <... memfd_create resumed>) = 3 [pid 9957] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 9961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9957] <... openat resumed>) = 4 [pid 9961] <... mmap resumed>) = 0x7f38d9778000 [pid 9957] ioctl(4, LOOP_SET_FD, 3 [pid 9960] 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 9957] <... ioctl resumed>) = 0 [pid 9957] close(3) = 0 [pid 9957] mkdir("./file0", 0777) = 0 [pid 9957] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 283.361341][ T9957] loop0: detected capacity change from 0 to 8192 [ 283.385319][ T9957] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 283.402613][ T9957] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9961] 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 9960] <... write resumed>) = 4194304 [pid 9960] munmap(0x7f38d9778000, 4194304) = 0 [pid 9960] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9960] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9960] close(3) = 0 [pid 9960] mkdir("./file0", 0777 [pid 9961] <... write resumed>) = 4194304 [pid 9960] <... mkdir resumed>) = 0 [pid 9960] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9961] munmap(0x7f38d9778000, 4194304) = 0 [pid 9961] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 283.424959][ T9960] loop2: detected capacity change from 0 to 8192 [ 283.433857][ T9957] REISERFS (device loop0): using ordered data mode [ 283.440746][ T9957] reiserfs: using flush barriers [ 283.442412][ T9961] loop5: detected capacity change from 0 to 8192 [ 283.446846][ T9957] 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 9961] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9961] close(3) = 0 [pid 9961] mkdir("./file0", 0777) = 0 [ 283.452516][ T9960] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 283.471784][ T9957] REISERFS (device loop0): checking transaction log (loop0) [ 283.483547][ T9960] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 283.492337][ T9961] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 283.499242][ T9960] REISERFS (device loop2): using ordered data mode [ 283.520009][ T9960] reiserfs: using flush barriers [ 283.526073][ T9960] 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 [ 283.542542][ T9960] REISERFS (device loop2): checking transaction log (loop2) [ 283.550919][ T9960] REISERFS (device loop2): Using r5 hash to sort names [ 283.551030][ T9957] REISERFS (device loop0): Using r5 hash to sort names [pid 9961] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9960] <... mount resumed>) = 0 [pid 9960] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 283.557955][ T9960] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 283.565301][ T9961] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 283.586898][ T9960] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 283.588393][ T9961] REISERFS (device loop5): using ordered data mode [ 283.596498][ T9957] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 283.603481][ T9961] reiserfs: using flush barriers [pid 9960] chdir("./file0") = 0 [pid 9960] ioctl(4, LOOP_CLR_FD) = 0 [pid 9960] close(4) = 0 [pid 9957] <... mount resumed>) = 0 [pid 9957] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9957] chdir("./file0") = 0 [pid 9957] ioctl(4, LOOP_CLR_FD) = 0 [pid 9957] close(4) = 0 [pid 9957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9956] <... futex resumed>) = 0 [pid 9956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9957] <... futex resumed>) = 1 [pid 9957] mkdir("./file1", 000) = 0 [pid 9957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9956] <... futex resumed>) = 0 [pid 9956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9960] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9959] <... futex resumed>) = 0 [pid 9960] mkdir("./file1", 000 [pid 9959] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9959] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9960] <... mkdir resumed>) = 0 [pid 9960] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9959] <... futex resumed>) = 0 [pid 9960] mkdir("./bus", 000 [pid 9959] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9959] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9957] <... futex resumed>) = 1 [pid 9957] mkdir("./bus", 000) = 0 [pid 9957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9956] <... futex resumed>) = 0 [pid 9956] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9957] <... futex resumed>) = 1 [pid 9957] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9960] <... mkdir resumed>) = 0 [pid 9960] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9960] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9959] <... futex resumed>) = 0 [pid 9959] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9960] <... futex resumed>) = 0 [pid 9959] <... futex resumed>) = 1 [pid 9960] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [ 283.615872][ T9957] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 283.637733][ T9961] 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 [ 283.641367][ T9957] overlayfs: upper fs needs to support d_type. [ 283.664079][ T9957] overlayfs: upper fs does not support tmpfile. [ 283.664432][ T9960] overlayfs: upper fs needs to support d_type. [pid 9959] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9956] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9956] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9956] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9956] 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=[9965], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9965 [pid 9956] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9956] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9959] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9959] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9959] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9959] 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=[9966], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9966 [pid 9959] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9959] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9965 attached [pid 9965] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9965] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9965] 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 9966 attached [pid 9960] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9960] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9957] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9960] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9957] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9957] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9966] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9966] mkdir(".", 0777) = -1 EEXIST (File exists) [ 283.671000][ T9957] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 283.681281][ T9960] overlayfs: upper fs does not support tmpfile. [ 283.693015][ T9960] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 283.702175][ T9960] overlayfs: failed to resolve './file0': -2 [ 283.712416][ T9961] REISERFS (device loop5): checking transaction log (loop5) [ 283.717604][ T9957] overlayfs: failed to resolve './file0': -2 [pid 9966] 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 9965] <... mount resumed>) = 0 [pid 9965] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9965] chdir(".") = 0 [pid 9965] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9956] <... futex resumed>) = 0 [pid 9965] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9956] exit_group(0 [pid 9965] <... futex resumed>) = ? [pid 9956] <... exit_group resumed>) = ? [pid 9965] +++ exited with 0 +++ [pid 9966] <... mount resumed>) = 0 [pid 9966] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9966] chdir(".") = 0 [pid 9966] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9959] <... futex resumed>) = 0 [pid 9959] exit_group(0 [pid 9957] <... futex resumed>) = ? [pid 9959] <... exit_group resumed>) = ? [pid 9957] +++ exited with 0 +++ [pid 9956] +++ exited with 0 +++ [pid 9966] <... futex resumed>) = ? [pid 9966] +++ exited with 0 +++ [pid 9960] <... futex resumed>) = ? [pid 9960] +++ exited with 0 +++ [pid 9959] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9959, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9956, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5000] umount2("./288", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./288", 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("./288/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] unlink("./288/binderfs") = 0 [pid 5000] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9961] <... mount resumed>) = 0 [pid 4998] umount2("./287", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 9961] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [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("./287/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./287/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./287/binderfs") = 0 [pid 4998] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9961] <... openat resumed>) = 3 [pid 9961] chdir("./file0") = 0 [pid 9961] ioctl(4, LOOP_CLR_FD) = 0 [pid 9961] close(4) = 0 [pid 9961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9958] <... futex resumed>) = 0 [pid 9958] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9958] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9961] <... futex resumed>) = 1 [pid 9961] mkdir("./file1", 000) = 0 [pid 9961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9958] <... futex resumed>) = 0 [pid 9958] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9958] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9961] <... futex resumed>) = 1 [pid 9961] mkdir("./bus", 000) = 0 [pid 9961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9958] <... futex resumed>) = 0 [pid 9958] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9958] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9961] <... futex resumed>) = 1 [ 283.740562][ T9961] REISERFS (device loop5): Using r5 hash to sort names [ 283.748560][ T9961] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 283.763411][ T9961] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9961] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9958] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9958] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9958] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9958] 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=[9967], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9967 [pid 9958] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9958] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9967 attached [pid 9967] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9967] mkdir(".", 0777 [pid 9961] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9961] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9961] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9967] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9967] 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 9967] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9967] chdir("." [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9967] <... chdir resumed>) = 0 [pid 5000] lstat("./288/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9967] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4998] <... umount2 resumed>) = 0 [pid 9967] <... futex resumed>) = 1 [pid 5000] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9967] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4998] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9958] <... futex resumed>) = 0 [pid 9958] exit_group(0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./287/file0", [pid 9967] <... futex resumed>) = ? [pid 9961] <... futex resumed>) = ? [pid 9958] <... exit_group resumed>) = ? [pid 4998] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 9961] +++ exited with 0 +++ [pid 4998] openat(AT_FDCWD, "./287/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 5000] openat(AT_FDCWD, "./288/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] fstat(4, [pid 4998] getdents64(4, [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 5000] getdents64(4, 0x555556b5f660 /* 2 entries */, 32768) = 48 [ 283.785794][ T9961] overlayfs: upper fs needs to support d_type. [ 283.795186][ T9961] overlayfs: upper fs does not support tmpfile. [ 283.802556][ T9961] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 283.811123][ T9961] overlayfs: failed to resolve './file0': -2 [pid 4998] rmdir("./287/file0" [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 5000] rmdir("./288/file0") = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 5000] getdents64(3, [pid 9967] +++ exited with 0 +++ [pid 9958] +++ exited with 0 +++ [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9958, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 4998] rmdir("./287" [pid 5003] restart_syscall(<... resuming interrupted clone ...> [pid 5000] close(3 [pid 5003] <... restart_syscall resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./288", 0777 [pid 5003] umount2("./287", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] rmdir("./288" [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... mkdir resumed>) = 0 [pid 5003] openat(AT_FDCWD, "./287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... rmdir resumed>) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5003] <... openat resumed>) = 3 [pid 4998] <... openat resumed>) = 3 [pid 5003] fstat(3, [pid 4998] ioctl(3, LOOP_CLR_FD [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] getdents64(3, [pid 4998] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4998] close(3 [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./287/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] mkdir("./289", 0777 [pid 4998] <... close resumed>) = 0 [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./287/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... mkdir resumed>) = 0 [pid 5003] unlink("./287/binderfs" [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5003] <... unlink resumed>) = 0 [pid 5003] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9968 [pid 5000] <... close resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556b565d0) = 9969 ./strace-static-x86_64: Process 9969 attached [pid 9969] set_robust_list(0x555556b565e0, 24) = 0 [pid 9969] chdir("./289") = 0 [pid 9969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9969] setpgid(0, 0) = 0 [pid 9969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9969] write(3, "1000", 4) = 4 [pid 9969] close(3) = 0 [pid 9969] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9969] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9969] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9969] 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=[9970], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9970 [pid 9969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9970 attached [pid 9970] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9970] memfd_create("syzkaller", 0) = 3 [pid 9970] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 ./strace-static-x86_64: Process 9968 attached [pid 9968] set_robust_list(0x555556b565e0, 24) = 0 [pid 9968] chdir("./288") = 0 [pid 9968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9968] setpgid(0, 0) = 0 [pid 9968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9968] write(3, "1000", 4) = 4 [pid 9968] close(3) = 0 [pid 9968] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9968] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9968] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9968] 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=[9971], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9971 [pid 9968] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9968] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9971 attached [pid 9971] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9971] memfd_create("syzkaller", 0) = 3 [pid 9971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5003] <... umount2 resumed>) = 0 [pid 9970] 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("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./287/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./287/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("./287/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./287") = 0 [pid 5003] mkdir("./288", 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) = 9972 ./strace-static-x86_64: Process 9972 attached [pid 9972] set_robust_list(0x555556b565e0, 24) = 0 [pid 9971] 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 9972] chdir("./288") = 0 [pid 9972] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9972] setpgid(0, 0) = 0 [pid 9972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9972] write(3, "1000", 4) = 4 [pid 9972] close(3) = 0 [pid 9972] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9972] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9972] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9972] 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=[9973], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9973 [pid 9972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9973 attached [pid 9973] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9973] memfd_create("syzkaller", 0) = 3 [pid 9973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9971] <... write resumed>) = 4194304 [pid 9971] munmap(0x7f38d9778000, 4194304 [pid 9973] <... mmap resumed>) = 0x7f38d9778000 [pid 9971] <... munmap resumed>) = 0 [pid 9971] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9971] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9970] <... write resumed>) = 4194304 [pid 9971] close(3) = 0 [pid 9971] mkdir("./file0", 0777 [pid 9970] munmap(0x7f38d9778000, 4194304 [pid 9971] <... mkdir resumed>) = 0 [pid 9971] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9970] <... munmap resumed>) = 0 [pid 9970] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9970] ioctl(4, LOOP_SET_FD, 3 [pid 9973] 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 9970] <... ioctl resumed>) = 0 [pid 9970] close(3) = 0 [pid 9970] mkdir("./file0", 0777) = 0 [ 284.018105][ T9971] loop0: detected capacity change from 0 to 8192 [ 284.033379][ T9970] loop2: detected capacity change from 0 to 8192 [ 284.038555][ T9971] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 284.053475][ T9971] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 9970] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9882] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 284.063305][ T9970] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 284.063330][ T9971] REISERFS (device loop0): using ordered data mode [ 284.083666][ T9971] reiserfs: using flush barriers [ 284.089724][ T9971] 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 [ 284.092035][ T9970] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 9973] <... write resumed>) = 4194304 [pid 9973] munmap(0x7f38d9778000, 4194304) = 0 [pid 9973] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9973] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9973] close(3) = 0 [pid 9973] mkdir("./file0", 0777) = 0 [ 284.106117][ T9971] REISERFS (device loop0): checking transaction log (loop0) [ 284.122946][ T9971] REISERFS (device loop0): Using r5 hash to sort names [ 284.129047][ T9973] loop5: detected capacity change from 0 to 8192 [ 284.129964][ T9971] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 284.143130][ T9970] REISERFS (device loop2): using ordered data mode [ 284.149539][ T9971] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 9973] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9971] <... mount resumed>) = 0 [pid 9971] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9971] chdir("./file0") = 0 [pid 9971] ioctl(4, LOOP_CLR_FD) = 0 [pid 9971] close(4) = 0 [pid 9971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9968] <... futex resumed>) = 0 [pid 9968] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 284.157153][ T9970] reiserfs: using flush barriers [ 284.165602][ T9973] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 284.181231][ T9970] 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 [ 284.184810][ T9973] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 284.208614][ T9973] REISERFS (device loop5): using ordered data mode [pid 9968] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9971] <... futex resumed>) = 1 [pid 9971] mkdir("./file1", 000) = 0 [pid 9971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9968] <... futex resumed>) = 0 [pid 9968] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9968] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9971] <... futex resumed>) = 1 [pid 9971] mkdir("./bus", 000) = 0 [pid 9971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9968] <... futex resumed>) = 0 [pid 9968] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9968] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9971] <... futex resumed>) = 1 [ 284.215218][ T9973] reiserfs: using flush barriers [ 284.222142][ T9970] REISERFS (device loop2): checking transaction log (loop2) [ 284.229635][ T9973] 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 [ 284.246333][ T9973] REISERFS (device loop5): checking transaction log (loop5) [ 284.254723][ T9971] overlayfs: upper fs needs to support d_type. [ 284.261156][ T9971] overlayfs: upper fs does not support tmpfile. [pid 9971] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9968] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9968] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9968] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9968] 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=[9977], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9977 [pid 9968] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9968] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9977 attached [ 284.267470][ T9973] REISERFS (device loop5): Using r5 hash to sort names [ 284.267808][ T9971] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 284.274554][ T9973] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 284.282657][ T9971] overlayfs: failed to resolve './file0': -2 [ 284.306805][ T9970] REISERFS (device loop2): Using r5 hash to sort names [pid 9977] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9973] <... mount resumed>) = 0 [pid 9977] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9977] 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 9973] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9973] chdir("./file0") = 0 [pid 9973] ioctl(4, LOOP_CLR_FD) = 0 [pid 9973] close(4) = 0 [pid 9973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9972] <... futex resumed>) = 0 [pid 9972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9973] <... futex resumed>) = 1 [pid 9973] mkdir("./file1", 000) = 0 [pid 9973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9972] <... futex resumed>) = 0 [pid 9972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9973] <... futex resumed>) = 1 [pid 9973] mkdir("./bus", 000) = 0 [pid 9973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9972] <... futex resumed>) = 0 [pid 9972] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9973] <... futex resumed>) = 1 [pid 9973] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9977] <... mount resumed>) = 0 [pid 9971] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9977] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9971] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9977] <... openat resumed>) = 4 [pid 9971] <... futex resumed>) = 0 [pid 9977] chdir("." [pid 9971] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9977] <... chdir resumed>) = 0 [pid 9977] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9968] <... futex resumed>) = 0 [pid 9977] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9968] exit_group(0 [pid 9977] <... futex resumed>) = ? [pid 9971] <... futex resumed>) = ? [pid 9968] <... exit_group resumed>) = ? [pid 9977] +++ exited with 0 +++ [pid 9971] +++ exited with 0 +++ [pid 9970] <... mount resumed>) = 0 [pid 9968] +++ exited with 0 +++ [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9968, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 4998] umount2("./288", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./288", 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("./288/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./288/binderfs") = 0 [ 284.309304][ T9973] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 284.315463][ T9970] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 284.344553][ T9973] overlayfs: upper fs needs to support d_type. [ 284.346193][ T9970] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 284.352791][ T9973] overlayfs: upper fs does not support tmpfile. [pid 4998] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9970] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9972] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9972] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 9972] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9972] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9972] 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=[9978], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9978 [pid 9972] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9972] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9970] chdir("./file0") = 0 [pid 9970] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 9978 attached [pid 9970] close(4) = 0 [pid 9978] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 9978] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9978] 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 9970] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9969] <... futex resumed>) = 0 [pid 9970] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9969] <... futex resumed>) = 0 [pid 9970] mkdir("./file1", 000 [pid 9969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9970] <... mkdir resumed>) = 0 [pid 9970] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9969] <... futex resumed>) = 0 [pid 9970] mkdir("./bus", 000 [pid 9969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9970] <... mkdir resumed>) = 0 [pid 9969] <... futex resumed>) = 0 [pid 9970] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9970] <... futex resumed>) = 0 [pid 9969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9970] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9969] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9969] <... futex resumed>) = 0 [pid 9970] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9969] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9978] <... mount resumed>) = 0 [pid 9978] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9978] chdir(".") = 0 [pid 9978] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9972] <... futex resumed>) = 0 [pid 9978] <... futex resumed>) = 1 [ 284.372095][ T9973] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 284.380559][ T9973] overlayfs: failed to resolve './file0': -2 [ 284.400292][ T9970] overlayfs: upper fs needs to support d_type. [pid 9978] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9973] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9973] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9973] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9972] exit_group(0 [pid 9978] <... futex resumed>) = ? [pid 9973] <... futex resumed>) = ? [pid 9972] <... exit_group resumed>) = ? [pid 9978] +++ exited with 0 +++ [pid 9973] +++ exited with 0 +++ [pid 9972] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9972, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] umount2("./288", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./288", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... umount2 resumed>) = 0 [pid 5003] getdents64(3, [pid 4998] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] umount2("./288/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./288/binderfs") = 0 [pid 5003] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] lstat("./288/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./288/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 9969] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9969] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 4998] getdents64(4, [pid 9969] <... mmap resumed>) = 0x7f38d9b57000 [pid 9969] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 9969] <... mprotect resumed>) = 0 [pid 9969] 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 4998] close(4 [pid 9969] <... clone resumed>, parent_tid=[9979], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9979 [pid 4998] <... close resumed>) = 0 [pid 9969] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9969] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4998] rmdir("./288/file0") = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4999] kill(-9882, SIGKILL) = 0 [pid 4998] rmdir("./288" [pid 4999] kill(9882, SIGKILL) = 0 [pid 4998] <... rmdir resumed>) = 0 [pid 4998] mkdir("./289", 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./strace-static-x86_64: Process 9979 attached [ 284.420732][ T9970] overlayfs: upper fs does not support tmpfile. [ 284.433436][ T9970] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 9979] set_robust_list(0x7f38d9b779e0, 24 [pid 4998] <... close resumed>) = 0 [pid 9979] <... set_robust_list resumed>) = 0 [pid 9979] mkdir(".", 0777 [pid 4998] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9979] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9979] 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 4998] <... clone resumed>, child_tidptr=0x555556b565d0) = 9980 ./strace-static-x86_64: Process 9980 attached [pid 9980] set_robust_list(0x555556b565e0, 24) = 0 [pid 9980] chdir("./289") = 0 [pid 9980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9980] setpgid(0, 0) = 0 [pid 9980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9980] write(3, "1000", 4) = 4 [pid 9980] close(3) = 0 [pid 9980] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9980] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9980] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9979] <... mount resumed>) = 0 [pid 9979] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9979] chdir(".") = 0 [pid 9980] 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 9979] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9969] <... futex resumed>) = 0 [pid 9979] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9980] <... clone resumed>, parent_tid=[9981], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9981 [pid 9980] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9980] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9970] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9970] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9969] exit_group(0 [pid 9979] <... futex resumed>) = ? [pid 9969] <... exit_group resumed>) = ? [pid 9979] +++ exited with 0 +++ [pid 9970] <... futex resumed>) = ? ./strace-static-x86_64: Process 9981 attached [pid 9970] +++ exited with 0 +++ [pid 9969] +++ exited with 0 +++ [pid 9981] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9969, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 9981] memfd_create("syzkaller", 0 [pid 5000] <... restart_syscall resumed>) = 0 [pid 9981] <... memfd_create resumed>) = 3 [pid 9981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5000] umount2("./289", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9981] <... mmap resumed>) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./289", 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, [pid 5003] <... umount2 resumed>) = 0 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] umount2("./289/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./289/binderfs", [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./288/file0", [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] unlink("./289/binderfs") = 0 [pid 5003] umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./288/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5003] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 284.463979][ T9970] overlayfs: failed to resolve './file0': -2 [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("./288/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./288") = 0 [pid 5003] mkdir("./289", 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) = 9982 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./289/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./289/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9982 attached [pid 9981] 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] getdents64(4, [pid 9982] set_robust_list(0x555556b565e0, 24 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4) = 0 [pid 9982] <... set_robust_list resumed>) = 0 [pid 9982] chdir("./289" [pid 5000] rmdir("./289/file0" [pid 9982] <... chdir resumed>) = 0 [pid 9982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9982] setpgid(0, 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9982] <... setpgid resumed>) = 0 [pid 9982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5000] getdents64(3, [pid 9982] <... openat resumed>) = 3 [pid 5000] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./289" [pid 9982] write(3, "1000", 4) = 4 [pid 9982] close(3 [pid 5000] <... rmdir resumed>) = 0 [pid 9982] <... close resumed>) = 0 [pid 5000] mkdir("./290", 0777 [pid 9982] symlink("/dev/binderfs", "./binderfs" [pid 5000] <... mkdir resumed>) = 0 [pid 9982] <... symlink resumed>) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 9982] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... openat resumed>) = 3 [pid 9982] <... futex resumed>) = 0 [pid 5000] ioctl(3, LOOP_CLR_FD [pid 9982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5000] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 9982] <... mmap resumed>) = 0x7f38e1b78000 [pid 5000] close(3 [pid 9982] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 5000] <... close resumed>) = 0 [pid 9982] <... mprotect resumed>) = 0 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9982] 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 resumed>, child_tidptr=0x555556b565d0) = 9983 [pid 9982] <... clone resumed>, parent_tid=[9984], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9984 [pid 9982] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9982] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9983 attached [pid 9983] set_robust_list(0x555556b565e0, 24) = 0 [pid 9983] chdir("./290") = 0 [pid 9983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9983] setpgid(0, 0) = 0 [pid 9983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9983] write(3, "1000", 4) = 4 [pid 9983] close(3) = 0 [pid 9983] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9983] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 9984 attached [pid 9984] set_robust_list(0x7f38e1b989e0, 24 [pid 9983] <... mmap resumed>) = 0x7f38e1b78000 [pid 9983] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 9984] <... set_robust_list resumed>) = 0 [pid 9983] <... mprotect resumed>) = 0 [pid 9984] memfd_create("syzkaller", 0 [pid 9983] 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 9984] <... memfd_create resumed>) = 3 [pid 9984] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 9983] <... clone resumed>, parent_tid=[9985], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9985 [pid 9984] <... mmap resumed>) = 0x7f38d9778000 [pid 9983] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9983] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9985 attached [pid 9985] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9985] memfd_create("syzkaller", 0) = 3 [pid 9985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9981] <... write resumed>) = 4194304 [pid 9981] munmap(0x7f38d9778000, 4194304) = 0 [pid 9981] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9981] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9981] close(3) = 0 [pid 9981] mkdir("./file0", 0777 [pid 9984] 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 9985] 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 9981] <... mkdir resumed>) = 0 [ 284.625574][ T9981] loop0: detected capacity change from 0 to 8192 [ 284.647971][ T9981] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 9981] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9985] <... write resumed>) = 4194304 [pid 9984] <... write resumed>) = 4194304 [pid 9984] munmap(0x7f38d9778000, 4194304 [pid 9985] munmap(0x7f38d9778000, 4194304 [pid 9984] <... munmap resumed>) = 0 [pid 9984] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9984] ioctl(4, LOOP_SET_FD, 3 [pid 9985] <... munmap resumed>) = 0 [pid 9985] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9985] ioctl(4, LOOP_SET_FD, 3 [pid 9984] <... ioctl resumed>) = 0 [pid 9985] <... ioctl resumed>) = 0 [pid 9985] close(3) = 0 [pid 9985] mkdir("./file0", 0777) = 0 [pid 9985] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9984] close(3) = 0 [pid 9984] mkdir("./file0", 0777) = 0 [ 284.673068][ T9981] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 284.683002][ T9981] REISERFS (device loop0): using ordered data mode [ 284.684024][ T9984] loop5: detected capacity change from 0 to 8192 [ 284.689841][ T9981] reiserfs: using flush barriers [ 284.697448][ T9985] loop2: detected capacity change from 0 to 8192 [ 284.701924][ T9981] 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 [ 284.714424][ T9984] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 284.723488][ T9981] REISERFS (device loop0): checking transaction log (loop0) [ 284.736296][ T9984] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 284.736360][ T9984] REISERFS (device loop5): using ordered data mode [ 284.744184][ T9985] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 284.752876][ T9984] reiserfs: using flush barriers [ 284.773353][ T9981] REISERFS (device loop0): Using r5 hash to sort names [ 284.777588][ T9985] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 284.784747][ T9981] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 284.793556][ T9985] REISERFS (device loop2): using ordered data mode [ 284.812933][ T9985] reiserfs: using flush barriers [pid 9984] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9981] <... mount resumed>) = 0 [pid 9981] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9981] chdir("./file0") = 0 [pid 9981] ioctl(4, LOOP_CLR_FD) = 0 [pid 9981] close(4) = 0 [ 284.813562][ T9984] 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 [ 284.818659][ T9981] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 284.835240][ T9984] REISERFS (device loop5): checking transaction log (loop5) [ 284.843857][ T9985] 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 [ 284.851930][ T9984] REISERFS (device loop5): Using r5 hash to sort names [pid 9981] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9981] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9980] <... futex resumed>) = 0 [pid 9980] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9981] <... futex resumed>) = 0 [pid 9980] <... futex resumed>) = 1 [pid 9981] mkdir("./file1", 000 [pid 9980] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9981] <... mkdir resumed>) = 0 [pid 9981] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9980] <... futex resumed>) = 0 [pid 9981] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9980] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9980] <... futex resumed>) = 0 [pid 9981] mkdir("./bus", 000 [pid 9980] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9981] <... mkdir resumed>) = 0 [pid 9981] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9980] <... futex resumed>) = 0 [pid 9981] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9980] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9980] <... futex resumed>) = 0 [pid 9981] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9980] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9984] <... mount resumed>) = 0 [pid 9984] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9984] chdir("./file0") = 0 [pid 9984] ioctl(4, LOOP_CLR_FD) = 0 [pid 9984] close(4) = 0 [pid 9984] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9982] <... futex resumed>) = 0 [pid 9984] mkdir("./file1", 000 [pid 9982] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9984] <... mkdir resumed>) = 0 [pid 9982] <... futex resumed>) = 0 [pid 9984] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9982] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9984] <... futex resumed>) = 0 [pid 9982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9984] mkdir("./bus", 000 [pid 9982] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9984] <... mkdir resumed>) = 0 [pid 9982] <... futex resumed>) = 0 [pid 9984] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9982] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9984] <... futex resumed>) = 0 [pid 9982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9984] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9982] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 284.874851][ T9984] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 284.881601][ T9985] REISERFS (device loop2): checking transaction log (loop2) [ 284.888282][ T9984] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 284.905967][ T9981] overlayfs: upper fs needs to support d_type. [ 284.910144][ T9984] overlayfs: upper fs needs to support d_type. [ 284.916639][ T9985] REISERFS (device loop2): Using r5 hash to sort names [pid 9982] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9980] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 284.927010][ T9984] overlayfs: upper fs does not support tmpfile. [ 284.929360][ T9981] overlayfs: upper fs does not support tmpfile. [ 284.940374][ T9985] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 284.953878][ T9981] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 284.956641][ T9984] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 284.961944][ T9981] overlayfs: failed to resolve './file0': -2 [pid 9980] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9982] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9982] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9982] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9982] 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=[9989], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9989 [pid 9982] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4999] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 9982] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 4999] <... openat resumed>) = 3 [pid 4999] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 4999] getdents64(3, 0x555556b57620 /* 2 entries */, 32768) = 48 [pid 4999] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4999] close(3) = 0 [pid 9980] <... futex resumed>) = 0 [pid 9980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9980] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9980] 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=[9990], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 9990 [pid 9980] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9980] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9990 attached ./strace-static-x86_64: Process 9989 attached [pid 9985] <... mount resumed>) = 0 [pid 9990] set_robust_list(0x7f38d9b779e0, 24 [pid 9989] set_robust_list(0x7f38d9b779e0, 24 [pid 9990] <... set_robust_list resumed>) = 0 [pid 9989] <... set_robust_list resumed>) = 0 [pid 9990] mkdir(".", 0777 [pid 9989] mkdir(".", 0777 [pid 9990] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9989] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 9990] 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 9989] 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 9985] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9985] chdir("./file0") = 0 [pid 9985] ioctl(4, LOOP_CLR_FD) = 0 [pid 9985] close(4) = 0 [pid 9985] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9985] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9983] <... futex resumed>) = 0 [pid 9990] <... mount resumed>) = 0 [pid 9983] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9990] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9983] <... futex resumed>) = 1 [pid 9990] <... openat resumed>) = 4 [pid 9989] <... mount resumed>) = 0 [pid 9983] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9990] chdir("." [pid 9989] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY [pid 9990] <... chdir resumed>) = 0 [pid 9989] <... openat resumed>) = 4 [pid 9990] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9989] chdir("." [pid 9990] <... futex resumed>) = 1 [pid 9989] <... chdir resumed>) = 0 [pid 9980] <... futex resumed>) = 0 [pid 9990] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9989] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9982] <... futex resumed>) = 0 [pid 9989] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9985] <... futex resumed>) = 0 [pid 9985] mkdir("./file1", 000) = 0 [pid 9985] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9983] <... futex resumed>) = 0 [pid 9985] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9983] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9983] <... futex resumed>) = 0 [pid 9985] mkdir("./bus", 000 [pid 9983] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9985] <... mkdir resumed>) = 0 [pid 9984] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9985] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9984] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9981] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9985] <... futex resumed>) = 1 [pid 9984] <... futex resumed>) = 0 [pid 9983] <... futex resumed>) = 0 [pid 9981] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9985] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9984] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 284.969687][ T9984] overlayfs: failed to resolve './file0': -2 [ 284.974329][ T9985] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 9983] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9981] <... futex resumed>) = 0 [pid 9983] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9982] exit_group(0 [pid 9981] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9980] exit_group(0 [pid 9984] <... futex resumed>) = ? [pid 9982] <... exit_group resumed>) = ? [pid 9981] <... futex resumed>) = ? [pid 9980] <... exit_group resumed>) = ? [pid 9984] +++ exited with 0 +++ [pid 9981] +++ exited with 0 +++ [pid 9989] <... futex resumed>) = ? [pid 9989] +++ exited with 0 +++ [pid 9982] +++ exited with 0 +++ [pid 9990] <... futex resumed>) = ? [pid 9990] +++ exited with 0 +++ [pid 9980] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9982, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5003] umount2("./289", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./289", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9980, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5003] <... openat resumed>) = 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("./289/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./289/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./289/binderfs") = 0 [pid 5003] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] umount2("./289", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./289", 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("./289/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./289/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./289/binderfs") = 0 [pid 4998] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9985] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 9985] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9985] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9983] <... futex resumed>) = 0 [pid 9983] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9985] <... futex resumed>) = 0 [pid 9983] <... futex resumed>) = 1 [pid 9985] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 9985] 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 9983] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9985] <... mount resumed>) = 0 [pid 9985] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 9985] chdir(".") = 0 [pid 9985] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9985] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9983] <... futex resumed>) = 0 [pid 9983] exit_group(0 [pid 5003] <... umount2 resumed>) = 0 [pid 9985] <... futex resumed>) = ? [pid 9983] <... exit_group resumed>) = ? [pid 5003] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9985] +++ exited with 0 +++ [pid 9983] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./289/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9983, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5003] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] umount2("./290", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./289/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... openat resumed>) = 4 [pid 5000] openat(AT_FDCWD, "./290", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5003] fstat(4, [pid 5000] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] getdents64(3, [pid 5003] getdents64(4, [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] umount2("./290/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] getdents64(4, [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5003] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4 [pid 5000] lstat("./290/binderfs", [pid 5003] <... close resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] rmdir("./289/file0") = 0 [pid 5000] unlink("./290/binderfs") = 0 [pid 5003] getdents64(3, [pid 5000] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./289") = 0 [pid 5003] mkdir("./290", 0777) = 0 [ 285.020589][ T9985] overlayfs: upper fs needs to support d_type. [ 285.027259][ T9985] overlayfs: upper fs does not support tmpfile. [ 285.034593][ T9985] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 285.043851][ T9985] overlayfs: failed to resolve './file0': -2 [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) = 9991 ./strace-static-x86_64: Process 9991 attached [pid 9991] set_robust_list(0x555556b565e0, 24) = 0 [pid 9991] chdir("./290" [pid 4998] <... umount2 resumed>) = 0 [pid 9991] <... chdir resumed>) = 0 [pid 9991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9991] setpgid(0, 0) = 0 [pid 9991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4998] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./289/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./289/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 9991] <... openat resumed>) = 3 [pid 4998] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 9991] write(3, "1000", 4) = 4 [pid 9991] close(3 [pid 4998] getdents64(4, [pid 9991] <... close resumed>) = 0 [pid 9991] symlink("/dev/binderfs", "./binderfs") = 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 4998] rmdir("./289/file0") = 0 [pid 9991] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9991] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4998] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 4998] close(3) = 0 [pid 4998] rmdir("./289" [pid 9991] 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 9991] <... clone resumed>, parent_tid=[9992], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9992 [pid 9991] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9991] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9992 attached [pid 4998] mkdir("./290", 0777 [pid 9992] set_robust_list(0x7f38e1b989e0, 24 [pid 4998] <... mkdir resumed>) = 0 [pid 9992] <... set_robust_list 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, child_tidptr=0x555556b565d0) = 9993 [pid 9992] memfd_create("syzkaller", 0) = 3 [pid 9992] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 5000] <... umount2 resumed>) = 0 [pid 5000] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./290/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./290/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5000] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 9993 attached [pid 5000] getdents64(4, [pid 9993] set_robust_list(0x555556b565e0, 24 [pid 5000] <... getdents64 resumed>0x555556b5f660 /* 2 entries */, 32768) = 48 [pid 5000] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5000] close(4 [pid 9993] <... set_robust_list resumed>) = 0 [pid 5000] <... close resumed>) = 0 [pid 9993] chdir("./290" [pid 5000] rmdir("./290/file0" [pid 9993] <... chdir resumed>) = 0 [pid 9993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9993] setpgid(0, 0) = 0 [pid 5000] <... rmdir resumed>) = 0 [pid 9993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 5000] rmdir("./290") = 0 [pid 9993] write(3, "1000", 4) = 4 [pid 9993] close(3) = 0 [pid 9993] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5000] mkdir("./291", 0777 [pid 9993] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] <... mkdir resumed>) = 0 [pid 9993] <... futex resumed>) = 0 [pid 9993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9993] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5000] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 9993] 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] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5000] close(3./strace-static-x86_64: Process 9994 attached [pid 9993] <... clone resumed>, parent_tid=[9994], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9994 [pid 9992] 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] <... close resumed>) = 0 [pid 9994] set_robust_list(0x7f38e1b989e0, 24 [pid 9993] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5000] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 9994] <... set_robust_list resumed>) = 0 [pid 9993] <... futex resumed>) = 0 [pid 9994] memfd_create("syzkaller", 0 [pid 9993] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9994] <... memfd_create resumed>) = 3 [pid 9994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 9995 attached ) = 0x7f38d9778000 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 9995 [pid 9995] set_robust_list(0x555556b565e0, 24) = 0 [pid 9995] chdir("./291") = 0 [pid 9995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 9995] setpgid(0, 0) = 0 [pid 9995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 9995] write(3, "1000", 4) = 4 [pid 9995] close(3) = 0 [pid 9995] symlink("/dev/binderfs", "./binderfs") = 0 [pid 9995] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 9995] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9995] 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=[9996], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 9996 [pid 9995] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9995] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 9996 attached [pid 9996] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 9994] 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 9996] memfd_create("syzkaller", 0) = 3 [pid 9996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 9992] <... write resumed>) = 4194304 [pid 9992] munmap(0x7f38d9778000, 4194304) = 0 [pid 9992] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 9992] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 9992] close(3) = 0 [pid 9992] mkdir("./file0", 0777) = 0 [pid 9992] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9996] 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 9994] <... write resumed>) = 4194304 [pid 9994] munmap(0x7f38d9778000, 4194304) = 0 [pid 9994] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 9994] ioctl(4, LOOP_SET_FD, 3 [pid 9996] <... write resumed>) = 4194304 [pid 9994] <... ioctl resumed>) = 0 [ 285.229079][ T9992] loop5: detected capacity change from 0 to 8192 [ 285.246490][ T9992] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 285.264068][ T9994] loop0: detected capacity change from 0 to 8192 [pid 9996] munmap(0x7f38d9778000, 4194304) = 0 [pid 9996] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 9996] ioctl(4, LOOP_SET_FD, 3 [pid 9994] close(3) = 0 [pid 9994] mkdir("./file0", 0777) = 0 [pid 9994] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9996] <... ioctl resumed>) = 0 [pid 9996] close(3) = 0 [pid 9996] mkdir("./file0", 0777) = 0 [ 285.271108][ T9992] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 285.280407][ T9992] REISERFS (device loop5): using ordered data mode [ 285.283842][ T9996] loop2: detected capacity change from 0 to 8192 [ 285.287302][ T9992] reiserfs: using flush barriers [ 285.300112][ T9994] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 285.300378][ T9992] 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 [ 285.313829][ T9994] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 285.330231][ T9992] REISERFS (device loop5): checking transaction log (loop5) [ 285.338754][ T9994] REISERFS (device loop0): using ordered data mode [ 285.347099][ T9996] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 285.352269][ T9994] reiserfs: using flush barriers [ 285.353582][ T9992] REISERFS (device loop5): Using r5 hash to sort names [pid 9996] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 9992] <... mount resumed>) = 0 [pid 9992] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9992] chdir("./file0") = 0 [pid 9992] ioctl(4, LOOP_CLR_FD) = 0 [ 285.365792][ T9996] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 285.371306][ T9992] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 285.377209][ T9994] 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 [ 285.387413][ T9992] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 9992] close(4) = 0 [pid 9992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9992] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9991] <... futex resumed>) = 0 [ 285.416141][ T9996] REISERFS (device loop2): using ordered data mode [ 285.432060][ T9996] reiserfs: using flush barriers [ 285.436868][ T9994] REISERFS (device loop0): checking transaction log (loop0) [ 285.438453][ T9996] 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 [ 285.456662][ T9994] REISERFS (device loop0): Using r5 hash to sort names [ 285.461329][ T9996] REISERFS (device loop2): checking transaction log (loop2) [pid 9991] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9992] <... futex resumed>) = 0 [pid 9991] <... futex resumed>) = 1 [pid 9992] mkdir("./file1", 000 [pid 9991] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9992] <... mkdir resumed>) = 0 [pid 9992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9991] <... futex resumed>) = 0 [pid 9992] mkdir("./bus", 000 [pid 9991] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9992] <... mkdir resumed>) = 0 [pid 9991] <... futex resumed>) = 0 [pid 9992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9991] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9992] <... futex resumed>) = 0 [pid 9991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9992] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9991] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9991] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9994] <... mount resumed>) = 0 [ 285.470350][ T9994] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 285.479085][ T9992] overlayfs: upper fs needs to support d_type. [ 285.488092][ T9994] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 285.494664][ T9996] REISERFS (device loop2): Using r5 hash to sort names [ 285.502905][ T9992] overlayfs: upper fs does not support tmpfile. [ 285.510899][ T9996] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 9994] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 9991] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9991] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 9991] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 9991] 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=[10000], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 10000 [pid 9991] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9991] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10000 attached [pid 9994] <... openat resumed>) = 3 [pid 10000] set_robust_list(0x7f38d9b779e0, 24 [pid 9994] chdir("./file0" [pid 10000] <... set_robust_list resumed>) = 0 [pid 9994] <... chdir resumed>) = 0 [pid 10000] mkdir(".", 0777 [pid 9994] ioctl(4, LOOP_CLR_FD [pid 9996] <... mount resumed>) = 0 [pid 9996] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 9996] chdir("./file0") = 0 [pid 9996] ioctl(4, LOOP_CLR_FD) = 0 [pid 9996] close(4) = 0 [pid 9996] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9996] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9992] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 10000] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 10000] 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 9995] <... futex resumed>) = 0 [pid 9994] <... ioctl resumed>) = 0 [pid 9995] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9994] close(4 [pid 9995] <... futex resumed>) = 1 [pid 9994] <... close resumed>) = 0 [pid 9995] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9994] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9993] <... futex resumed>) = 0 [pid 9994] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9993] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9993] <... futex resumed>) = 0 [pid 9994] mkdir("./file1", 000 [pid 9993] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9994] <... mkdir resumed>) = 0 [pid 9994] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9993] <... futex resumed>) = 0 [pid 9994] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9993] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9993] <... futex resumed>) = 0 [pid 9992] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9994] mkdir("./bus", 000 [pid 9993] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10000] <... mount resumed>) = 0 [pid 9994] <... mkdir resumed>) = 0 [pid 9992] <... futex resumed>) = 0 [pid 10000] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [ 285.516592][ T9992] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 285.531707][ T9996] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 285.537521][ T9992] overlayfs: failed to resolve './file0': -2 [ 285.566269][ T28] INFO: task kworker/u4:5:2413 blocked for more than 143 seconds. [pid 10000] chdir(".") = 0 [pid 9994] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9992] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9996] <... futex resumed>) = 0 [pid 9994] <... futex resumed>) = 1 [pid 9993] <... futex resumed>) = 0 [pid 9994] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9993] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 9993] <... futex resumed>) = 0 [pid 9994] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 9993] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9996] mkdir("./file1", 000) = 0 [pid 9996] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9995] <... futex resumed>) = 0 [pid 9995] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9995] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9996] <... futex resumed>) = 1 [pid 9996] mkdir("./bus", 000) = 0 [pid 9996] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 9995] <... futex resumed>) = 0 [pid 9995] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 9995] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 9996] <... futex resumed>) = 1 [pid 9996] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 10000] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 9991] <... futex resumed>) = 0 [pid 10000] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9991] exit_group(0 [pid 10000] <... futex resumed>) = ? [pid 9992] <... futex resumed>) = ? [pid 9991] <... exit_group resumed>) = ? [pid 10000] +++ exited with 0 +++ [pid 9992] +++ exited with 0 +++ [pid 9991] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9991, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5003] umount2("./290", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./290", 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("./290/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./290/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./290/binderfs") = 0 [ 285.577094][ T9994] overlayfs: upper fs needs to support d_type. [ 285.583294][ T9994] overlayfs: upper fs does not support tmpfile. [ 285.590335][ T9996] overlayfs: upper fs needs to support d_type. [ 285.597004][ T9996] overlayfs: upper fs does not support tmpfile. [ 285.597494][ T28] Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 285.605087][ T9994] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 285.618632][ T9996] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5003] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 9995] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9993] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 9995] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9993] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9995] <... futex resumed>) = 0 [pid 9993] <... futex resumed>) = 0 [pid 9995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9993] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 9995] <... mmap resumed>) = 0x7f38d9b57000 [pid 9993] <... mmap resumed>) = 0x7f38d9b57000 [pid 9995] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9993] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE [pid 9995] <... mprotect resumed>) = 0 [pid 9993] <... mprotect resumed>) = 0 [pid 9995] 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 9993] 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 9995] <... clone resumed>, parent_tid=[10001], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 10001 [pid 9993] <... clone resumed>, parent_tid=[10002], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 10002 [pid 9995] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9993] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 9995] <... futex resumed>) = 0 [pid 9993] <... futex resumed>) = 0 [pid 9995] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 9993] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10001 attached [pid 10001] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 10001] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 10001] 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 10002 attached [pid 10002] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 10002] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 10002] 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 10001] <... mount resumed>) = 0 [pid 10001] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 10001] chdir(".") = 0 [pid 10001] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9995] <... futex resumed>) = 0 [pid 10001] <... futex resumed>) = 1 [pid 10001] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10002] <... mount resumed>) = 0 [pid 10002] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 10002] chdir(".") = 0 [pid 10002] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 9993] <... futex resumed>) = 0 [pid 10002] <... futex resumed>) = 1 [ 285.620580][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.627211][ T9996] overlayfs: failed to resolve './file0': -2 [ 285.634734][ T28] task:kworker/u4:5 state:D stack:24504 pid:2413 ppid:2 flags:0x00004000 [ 285.641813][ T9994] overlayfs: failed to resolve './file0': -2 [ 285.650678][ T28] Workqueue: writeback wb_workfn (flush-7:4) [ 285.663498][ T28] Call Trace: [ 285.667485][ T28] [ 285.670482][ T28] __schedule+0xc9a/0x5880 [ 285.675156][ T28] ? lock_downgrade+0x690/0x690 [ 285.680301][ T28] ? io_schedule_timeout+0x150/0x150 [ 285.686137][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 285.692310][ T28] ? mark_held_locks+0x9f/0xe0 [ 285.697252][ T28] schedule+0xde/0x1a0 [ 285.701545][ T28] queue_log_writer+0x293/0x2f0 [ 285.706656][ T28] ? free_cnode+0x1e0/0x1e0 [ 285.711196][ T28] ? wake_up_state+0x10/0x10 [ 285.715847][ T28] ? __brelse+0x88/0xa0 [ 285.720095][ T28] do_journal_end+0x908/0x4af0 [ 285.725011][ T28] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 285.731190][ T28] reiserfs_write_inode+0x27e/0x2d0 [ 285.736537][ T28] ? reiserfs_encode_fh+0x5e0/0x5e0 [ 285.741762][ T28] ? spin_bug+0x1c0/0x1c0 [ 285.746174][ T28] __writeback_single_inode+0x9f2/0xdb0 [ 285.751916][ T28] writeback_sb_inodes+0x54d/0xe70 [ 285.757094][ T28] ? sync_inode_metadata+0xe0/0xe0 [ 285.762262][ T28] ? rcu_is_watching+0x12/0xb0 [ 285.767433][ T28] ? queue_io+0x386/0x4e0 [ 285.771781][ T28] wb_writeback+0x294/0xa50 [pid 10002] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 9995] exit_group(0 [pid 10001] <... futex resumed>) = ? [pid 9995] <... exit_group resumed>) = ? [pid 10001] +++ exited with 0 +++ [pid 9993] exit_group(0) = ? [pid 10002] <... futex resumed>) = ? [pid 10002] +++ exited with 0 +++ [ 285.776356][ T28] ? __writeback_inodes_wb+0x280/0x280 [ 285.781839][ T28] ? lock_downgrade+0x690/0x690 [ 285.786782][ T28] ? mark_held_locks+0x9f/0xe0 [ 285.791561][ T28] ? _raw_spin_unlock_irq+0x23/0x50 [ 285.796798][ T28] wb_workfn+0x2a5/0xfc0 [ 285.801061][ T28] ? inode_wait_for_writeback+0x40/0x40 [ 285.806658][ T28] ? lock_sync+0x190/0x190 [ 285.811086][ T28] ? lock_downgrade+0x690/0x690 [ 285.816286][ T28] ? _raw_spin_unlock_irq+0x23/0x50 [ 285.821726][ T28] process_one_work+0x99a/0x15e0 [ 285.826720][ T28] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 285.832112][ T28] ? spin_bug+0x1c0/0x1c0 [ 285.836518][ T28] ? _raw_spin_lock_irq+0x45/0x50 [ 285.841570][ T28] worker_thread+0x67d/0x10c0 [ 285.846341][ T28] ? process_one_work+0x15e0/0x15e0 [ 285.851561][ T28] kthread+0x344/0x440 [ 285.855623][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 285.861359][ T28] ret_from_fork+0x1f/0x30 [ 285.865896][ T28] [ 285.869148][ T28] INFO: task kworker/u4:6:4258 blocked for more than 143 seconds. [ 285.879356][ T28] Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 285.886624][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.895308][ T28] task:kworker/u4:6 state:D stack:24392 pid:4258 ppid:2 flags:0x00004000 [ 285.904598][ T28] Workqueue: writeback wb_workfn (flush-7:3) [ 285.910775][ T28] Call Trace: [ 285.914046][ T28] [ 285.917218][ T28] __schedule+0xc9a/0x5880 [ 285.921676][ T28] ? lock_downgrade+0x690/0x690 [ 285.926630][ T28] ? io_schedule_timeout+0x150/0x150 [ 285.931971][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 285.938303][ T28] ? mark_held_locks+0x9f/0xe0 [ 285.943111][ T28] schedule+0xde/0x1a0 [ 285.947651][ T28] queue_log_writer+0x293/0x2f0 [ 285.952554][ T28] ? free_cnode+0x1e0/0x1e0 [ 285.957133][ T28] ? wake_up_state+0x10/0x10 [ 285.961817][ T28] ? __brelse+0x88/0xa0 [ 285.966009][ T28] do_journal_end+0x908/0x4af0 [ 285.970931][ T28] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 285.977092][ T28] reiserfs_write_inode+0x27e/0x2d0 [ 285.982320][ T28] ? reiserfs_encode_fh+0x5e0/0x5e0 [ 285.987578][ T28] ? spin_bug+0x1c0/0x1c0 [ 285.991929][ T28] __writeback_single_inode+0x9f2/0xdb0 [ 285.997526][ T28] writeback_sb_inodes+0x54d/0xe70 [ 286.002697][ T28] ? sync_inode_metadata+0xe0/0xe0 [ 286.007925][ T28] ? rcu_is_watching+0x12/0xb0 [ 286.012740][ T28] ? queue_io+0x386/0x4e0 [ 286.017149][ T28] wb_writeback+0x294/0xa50 [ 286.021673][ T28] ? __writeback_inodes_wb+0x280/0x280 [ 286.027188][ T28] ? lock_downgrade+0x690/0x690 [ 286.032077][ T28] ? mark_held_locks+0x9f/0xe0 [ 286.036922][ T28] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.042164][ T28] wb_workfn+0x2a5/0xfc0 [ 286.046546][ T28] ? inode_wait_for_writeback+0x40/0x40 [ 286.052116][ T28] ? lock_sync+0x190/0x190 [ 286.056611][ T28] ? lock_downgrade+0x690/0x690 [ 286.061493][ T28] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.066869][ T28] process_one_work+0x99a/0x15e0 [ 286.071841][ T28] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 286.077307][ T28] ? spin_bug+0x1c0/0x1c0 [pid 9996] <... mount resumed>) = ? [pid 9994] <... mount resumed>) = ? [pid 9996] +++ exited with 0 +++ [pid 9995] +++ exited with 0 +++ [pid 9994] +++ exited with 0 +++ [pid 9993] +++ exited with 0 +++ [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9995, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9993, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5000] <... restart_syscall resumed>) = 0 [pid 4998] umount2("./290", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./290", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] umount2("./291", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... openat resumed>) = 3 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] fstat(3, [pid 5000] openat(AT_FDCWD, "./291", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 4998] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5000] <... openat resumed>) = 3 [pid 4998] getdents64(3, [pid 5000] fstat(3, [pid 4998] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 5000] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./290/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] getdents64(3, [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] <... getdents64 resumed>0x555556b57620 /* 4 entries */, 32768) = 112 [pid 4998] lstat("./290/binderfs", [pid 5000] umount2("./291/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] unlink("./290/binderfs" [pid 5000] lstat("./291/binderfs", [pid 4998] <... unlink resumed>) = 0 [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] unlink("./291/binderfs") = 0 [ 286.081652][ T28] ? _raw_spin_lock_irq+0x45/0x50 [ 286.086733][ T28] worker_thread+0x67d/0x10c0 [ 286.091434][ T28] ? process_one_work+0x15e0/0x15e0 [ 286.096683][ T28] kthread+0x344/0x440 [ 286.100772][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 286.106506][ T28] ret_from_fork+0x1f/0x30 [ 286.110967][ T28] [ 286.114029][ T28] INFO: task syz-executor351:6222 blocked for more than 143 seconds. [ 286.122806][ T28] Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 286.130799][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.140009][ T28] task:syz-executor351 state:D stack:24880 pid:6222 ppid:5001 flags:0x00004006 [ 286.149644][ T28] Call Trace: [ 286.153031][ T28] [ 286.156144][ T28] __schedule+0xc9a/0x5880 [ 286.160853][ T28] ? io_schedule_timeout+0x150/0x150 [ 286.166225][ T28] ? find_held_lock+0x2d/0x110 [ 286.171028][ T28] ? lock_downgrade+0x690/0x690 [ 286.175884][ T28] schedule+0xde/0x1a0 [ 286.180011][ T28] bit_wait+0x16/0xe0 [ 286.184014][ T28] __wait_on_bit+0x64/0x180 [ 286.188598][ T28] ? out_of_line_wait_on_bit_timeout+0x170/0x170 [ 286.195041][ T28] __inode_wait_for_writeback+0x153/0x1f0 [ 286.200829][ T28] ? wb_wakeup+0xd0/0xd0 [ 286.205095][ T28] ? cpuacct_css_alloc+0x160/0x160 [ 286.210311][ T28] ? spin_bug+0x1c0/0x1c0 [ 286.214754][ T28] ? do_raw_spin_unlock+0x175/0x230 [ 286.220129][ T28] inode_wait_for_writeback+0x26/0x40 [ 286.225537][ T28] evict+0x2b7/0x6b0 [ 286.229623][ T28] iput.part.0+0x50a/0x740 [ 286.235154][ T28] iput+0x5c/0x80 [ 286.238852][ T28] dentry_unlink_inode+0x2b1/0x460 [ 286.244011][ T28] d_delete+0x16f/0x1c0 [ 286.248242][ T28] xattr_unlink+0x139/0x190 [ 286.252770][ T28] reiserfs_xattr_set_handle+0x7bd/0xb00 [ 286.258483][ T28] ? reiserfs_chown_xattrs+0xa0/0xa0 [ 286.263789][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 286.269970][ T28] ? __lock_acquire+0x1916/0x5df0 [ 286.275050][ T28] reiserfs_xattr_set+0x454/0x5b0 [ 286.280205][ T28] ? reiserfs_xattr_set_handle+0xb00/0xb00 [ 286.286186][ T28] ? bpf_lsm_capable+0x9/0x10 [ 286.290868][ T28] ? security_capable+0x93/0xc0 [ 286.295812][ T28] ? trusted_list+0xb0/0xb0 [ 286.300406][ T28] trusted_set+0xa7/0xd0 [ 286.304683][ T28] __vfs_removexattr+0x155/0x1c0 [ 286.309747][ T28] ? __vfs_getxattr+0x1a0/0x1a0 [ 286.314638][ T28] ? evm_inode_removexattr+0x4a/0x60 [ 286.319996][ T28] __vfs_removexattr_locked+0x1b0/0x440 [ 286.325574][ T28] ? vfs_setxattr+0x21e/0x340 [ 286.330338][ T28] vfs_removexattr+0xcf/0x260 [ 286.335047][ T28] ? __vfs_setxattr_locked+0x260/0x260 [ 286.340575][ T28] ? __vfs_removexattr_locked+0x440/0x440 [ 286.346404][ T28] ? up_write+0x1b4/0x520 [ 286.350760][ T28] ? ovl_fill_super+0x6bb7/0x7270 [ 286.355805][ T28] ovl_fill_super+0x6ec5/0x7270 [ 286.360751][ T28] ? kfree+0x10e/0x150 [ 286.364849][ T28] ? ovl_show_options+0x780/0x780 [ 286.369968][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 286.376105][ T28] ? do_raw_spin_lock+0x124/0x2b0 [ 286.381160][ T28] ? spin_bug+0x1c0/0x1c0 [ 286.385502][ T28] ? sget+0x128/0x580 [ 286.389568][ T28] ? set_anon_super_fc+0xb0/0xb0 [ 286.394539][ T28] ? ovl_show_options+0x780/0x780 [ 286.399654][ T28] mount_nodev+0x64/0x120 [ 286.404057][ T28] ? ovl_own_xattr_set+0x10/0x10 [ 286.409140][ T28] legacy_get_tree+0x109/0x220 [ 286.413949][ T28] vfs_get_tree+0x8d/0x350 [ 286.418475][ T28] path_mount+0x134b/0x1e40 [ 286.423021][ T28] ? kmem_cache_free+0xe9/0x480 [ 286.427952][ T28] ? finish_automount+0x9b0/0x9b0 [ 286.432997][ T28] ? putname+0x102/0x140 [ 286.437297][ T28] __x64_sys_mount+0x283/0x300 [ 286.442081][ T28] ? copy_mnt_ns+0xb30/0xb30 [ 286.446745][ T28] ? lockdep_hardirqs_on+0x7d/0x100 [ 286.451986][ T28] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.457281][ T28] ? ptrace_notify+0xfe/0x140 [ 286.461999][ T28] do_syscall_64+0x39/0xb0 [ 286.466528][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.473530][ T28] RIP: 0033:0x7f38e1becaf9 [ 286.478269][ T28] RSP: 002b:00007f38e1b982f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 286.486755][ T28] RAX: ffffffffffffffda RBX: 00007f38e1c727a0 RCX: 00007f38e1becaf9 [ 286.494724][ T28] RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 [ 286.502807][ T28] RBP: 00007f38e1c3f2b8 R08: 0000000020000480 R09: 0000000000000000 [ 286.510850][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 0079616c7265766f [ 286.518888][ T28] R13: d5e172a4510865ec R14: 9837512483e3bdcd R15: 00007f38e1c727a8 [ 286.526980][ T28] [pid 5000] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./290/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./290/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("./290/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./290") = 0 [pid 5003] mkdir("./291", 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) = 10003 ./strace-static-x86_64: Process 10003 attached [pid 10003] set_robust_list(0x555556b565e0, 24) = 0 [pid 10003] chdir("./291") = 0 [pid 10003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10003] setpgid(0, 0) = 0 [pid 10003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10003] write(3, "1000", 4) = 4 [pid 10003] close(3) = 0 [pid 10003] symlink("/dev/binderfs", "./binderfs") = 0 [ 286.530022][ T28] INFO: task syz-executor351:6231 blocked for more than 144 seconds. [ 286.539064][ T28] Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 286.561030][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.573420][ T28] task:syz-executor351 state:D stack:28496 pid:6231 ppid:5001 flags:0x00004004 [pid 10003] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 10003] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10003] 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=[10004], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 10004 [pid 10003] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10004 attached [pid 10004] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 10004] memfd_create("syzkaller", 0) = 3 [pid 10004] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 10004] 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 [ 286.588443][ T28] Call Trace: [ 286.591940][ T28] [ 286.595196][ T28] __schedule+0xc9a/0x5880 [ 286.600042][ T28] ? find_held_lock+0x2d/0x110 [ 286.604872][ T28] ? io_schedule_timeout+0x150/0x150 [ 286.610487][ T28] ? mark_held_locks+0x9f/0xe0 [ 286.615294][ T28] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 286.621697][ T28] ? lockdep_hardirqs_on+0x7d/0x100 [ 286.627261][ T28] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 286.633122][ T28] schedule+0xde/0x1a0 [pid 10004] munmap(0x7f38d9778000, 4194304) = 0 [pid 10004] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 10004] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10004] close(3) = 0 [ 286.637691][ T28] wb_wait_for_completion+0x182/0x240 [ 286.643125][ T28] ? wb_writeback+0xa50/0xa50 [ 286.648437][ T28] ? prepare_to_swait_exclusive+0x240/0x240 [ 286.654451][ T28] ? rwsem_down_write_slowpath+0x1220/0x1220 [ 286.661256][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 286.667574][ T28] ? I_BDEV+0xd/0x20 [ 286.671530][ T28] sync_inodes_sb+0x1aa/0xa60 [ 286.674173][T10004] loop5: detected capacity change from 0 to 8192 [ 286.676593][ T28] ? try_to_writeback_inodes_sb+0xc0/0xc0 [pid 10004] mkdir("./file0", 0777) = 0 [ 286.687387][T10004] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 286.689035][ T28] ? get_nr_dirty_inodes+0x60/0x1d0 [ 286.702184][T10004] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 286.706902][ T28] sync_filesystem.part.0+0xe6/0x1d0 [ 286.716528][T10004] REISERFS (device loop5): using ordered data mode [ 286.721311][ T28] sync_filesystem+0x8f/0xc0 [ 286.728401][T10004] reiserfs: using flush barriers [ 286.732517][ T28] reiserfs_remount+0x129/0x1650 [ 286.739223][T10004] 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 [ 286.742519][ T28] ? finish_unfinished.isra.0+0x1220/0x1220 [ 286.759570][T10004] REISERFS (device loop5): checking transaction log (loop5) [ 286.764570][ T28] ? __static_call_return0+0x9/0x10 [ 286.777376][ T28] ? list_lru_count_node+0x14/0x80 [ 286.782627][ T28] ? shrink_dcache_sb+0x1bf/0x360 [pid 10004] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "") = 0 [pid 10004] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 10004] chdir("./file0") = 0 [pid 10004] ioctl(4, LOOP_CLR_FD) = 0 [ 286.787780][ T28] ? shrink_dentry_list+0x4f0/0x4f0 [ 286.788940][T10004] REISERFS (device loop5): Using r5 hash to sort names [ 286.793024][ T28] ? finish_unfinished.isra.0+0x1220/0x1220 [ 286.801083][T10004] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 286.806353][ T28] legacy_reconfigure+0x119/0x180 [ 286.819646][T10004] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 286.823976][ T28] reconfigure_super+0x40c/0xa30 [pid 10004] close(4) = 0 [pid 10004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10003] <... futex resumed>) = 0 [pid 10003] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10004] <... futex resumed>) = 1 [pid 10004] mkdir("./file1", 000) = 0 [pid 10004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10003] <... futex resumed>) = 0 [pid 10003] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10004] <... futex resumed>) = 1 [pid 10004] mkdir("./bus", 000) = 0 [pid 10004] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10003] <... futex resumed>) = 0 [pid 10003] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10004] <... futex resumed>) = 1 [ 286.838936][ T28] ? fs_umode_to_dtype+0xd0/0xd0 [ 286.848205][ T28] path_mount+0x1846/0x1e40 [ 286.848516][T10004] overlayfs: upper fs needs to support d_type. [ 286.859392][T10004] overlayfs: upper fs does not support tmpfile. [ 286.863749][ T28] ? kmem_cache_free+0xe9/0x480 [ 286.865986][T10004] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 286.873860][ T28] ? finish_automount+0x9b0/0x9b0 [ 286.878971][T10004] overlayfs: failed to resolve './file0': -2 [pid 10004] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 10003] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10003] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 10003] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10003] 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=[10006], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 10006 [pid 10003] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10003] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10006 attached [pid 10006] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 10006] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 10006] 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 10006] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 10006] chdir(".") = 0 [pid 10006] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 10003] <... futex resumed>) = 0 [pid 10006] <... futex resumed>) = 1 [ 286.883291][ T28] ? putname+0x102/0x140 [ 286.892971][ T28] __x64_sys_mount+0x283/0x300 [ 286.898154][ T28] ? copy_mnt_ns+0xb30/0xb30 [ 286.903261][ T28] ? lockdep_hardirqs_on+0x7d/0x100 [ 286.908619][ T28] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.913850][ T28] ? ptrace_notify+0xfe/0x140 [ 286.918649][ T28] do_syscall_64+0x39/0xb0 [ 286.923406][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.929718][ T28] RIP: 0033:0x7f38e1bedfba [ 286.934139][ T28] RSP: 002b:00007f38d9b77118 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 286.942660][ T28] RAX: ffffffffffffffda RBX: 00007f38d9b776b8 RCX: 00007f38e1bedfba [ 286.950955][ T28] RDX: 00000000200001c0 RSI: 0000000020000100 RDI: 0000000000000000 [ 286.959047][ T28] RBP: 00000000ffffffff R08: 00007f38d9b771b0 R09: 0000000000000000 [ 286.967085][ T28] R10: 0000000001a484bc R11: 0000000000000286 R12: 00000000200001c0 [ 286.975056][ T28] R13: 0000000020000100 R14: 0000000000000000 R15: 00000000200006c0 [ 286.983162][ T28] [ 286.986270][ T28] INFO: task syz-executor351:6396 blocked for more than 144 seconds. [ 286.994396][ T28] Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 287.001713][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.010445][ T28] task:syz-executor351 state:D stack:24728 pid:6396 ppid:5002 flags:0x00004006 [ 287.020140][ T28] Call Trace: [ 287.023421][ T28] [ 287.026387][ T28] __schedule+0xc9a/0x5880 [ 287.030844][ T28] ? io_schedule_timeout+0x150/0x150 [pid 10006] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10003] exit_group(0 [pid 10006] <... futex resumed>) = ? [pid 10003] <... exit_group resumed>) = ? [pid 10006] +++ exited with 0 +++ [ 287.036436][ T28] ? find_held_lock+0x2d/0x110 [ 287.041248][ T28] ? lock_downgrade+0x690/0x690 [ 287.046184][ T28] schedule+0xde/0x1a0 [ 287.050265][ T28] bit_wait+0x16/0xe0 [ 287.054251][ T28] __wait_on_bit+0x64/0x180 [ 287.058841][ T28] ? out_of_line_wait_on_bit_timeout+0x170/0x170 [ 287.065186][ T28] __inode_wait_for_writeback+0x153/0x1f0 [ 287.070975][ T28] ? wb_wakeup+0xd0/0xd0 [ 287.075351][ T28] ? cpuacct_css_alloc+0x160/0x160 [ 287.080869][ T28] ? spin_bug+0x1c0/0x1c0 [ 287.085232][ T28] ? do_raw_spin_unlock+0x175/0x230 [ 287.090582][ T28] inode_wait_for_writeback+0x26/0x40 [ 287.096086][ T28] evict+0x2b7/0x6b0 [ 287.100092][ T28] iput.part.0+0x50a/0x740 [ 287.104535][ T28] iput+0x5c/0x80 [ 287.108229][ T28] dentry_unlink_inode+0x2b1/0x460 [ 287.113391][ T28] d_delete+0x16f/0x1c0 [ 287.117600][ T28] xattr_unlink+0x139/0x190 [ 287.122119][ T28] reiserfs_xattr_set_handle+0x7bd/0xb00 [ 287.127812][ T28] ? reiserfs_chown_xattrs+0xa0/0xa0 [ 287.133113][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 287.139601][ T28] ? __lock_acquire+0x1916/0x5df0 [ 287.144664][ T28] reiserfs_xattr_set+0x454/0x5b0 [ 287.149738][ T28] ? reiserfs_xattr_set_handle+0xb00/0xb00 [ 287.155579][ T28] ? bpf_lsm_capable+0x9/0x10 [ 287.160475][ T28] ? security_capable+0x93/0xc0 [ 287.165366][ T28] ? trusted_list+0xb0/0xb0 [ 287.169949][ T28] trusted_set+0xa7/0xd0 [ 287.174233][ T28] __vfs_removexattr+0x155/0x1c0 [ 287.179347][ T28] ? __vfs_getxattr+0x1a0/0x1a0 [ 287.184252][ T28] ? evm_inode_removexattr+0x4a/0x60 [ 287.189598][ T28] __vfs_removexattr_locked+0x1b0/0x440 [ 287.195184][ T28] ? vfs_setxattr+0x21e/0x340 [ 287.199955][ T28] vfs_removexattr+0xcf/0x260 [ 287.204672][ T28] ? __vfs_setxattr_locked+0x260/0x260 [ 287.210179][ T28] ? __vfs_removexattr_locked+0x440/0x440 [ 287.215949][ T28] ? up_write+0x1b4/0x520 [ 287.220362][ T28] ? ovl_fill_super+0x6bb7/0x7270 [ 287.225421][ T28] ovl_fill_super+0x6ec5/0x7270 [ 287.230437][ T28] ? kfree+0x10e/0x150 [ 287.234520][ T28] ? ovl_show_options+0x780/0x780 [ 287.239601][ T28] ? wait_for_completion_io_timeout+0x20/0x20 [ 287.245688][ T28] ? do_raw_spin_lock+0x124/0x2b0 [ 287.251556][ T28] ? spin_bug+0x1c0/0x1c0 [ 287.255911][ T28] ? sget+0x128/0x580 [ 287.259996][ T28] ? set_anon_super_fc+0xb0/0xb0 [ 287.264953][ T28] ? ovl_show_options+0x780/0x780 [ 287.270048][ T28] mount_nodev+0x64/0x120 [ 287.274398][ T28] ? ovl_own_xattr_set+0x10/0x10 [ 287.279382][ T28] legacy_get_tree+0x109/0x220 [ 287.284194][ T28] vfs_get_tree+0x8d/0x350 [ 287.288769][ T28] path_mount+0x134b/0x1e40 [ 287.293306][ T28] ? kmem_cache_free+0xe9/0x480 [ 287.298260][ T28] ? finish_automount+0x9b0/0x9b0 [ 287.303319][ T28] ? putname+0x102/0x140 [ 287.307648][ T28] __x64_sys_mount+0x283/0x300 [ 287.312438][ T28] ? copy_mnt_ns+0xb30/0xb30 [ 287.317095][ T28] ? lockdep_hardirqs_on+0x7d/0x100 [ 287.322674][ T28] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.327956][ T28] ? ptrace_notify+0xfe/0x140 [ 287.332671][ T28] do_syscall_64+0x39/0xb0 [ 287.337262][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.343196][ T28] RIP: 0033:0x7f38e1becaf9 [ 287.347673][ T28] RSP: 002b:00007f38e1b982f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 287.356136][ T28] RAX: ffffffffffffffda RBX: 00007f38e1c727a0 RCX: 00007f38e1becaf9 [ 287.364117][ T28] RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 [ 287.372326][ T28] RBP: 00007f38e1c3f2b8 R08: 0000000020000480 R09: 0000000000000000 [ 287.380346][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 0079616c7265766f [pid 10004] <... mount resumed>) = ? [pid 10004] +++ exited with 0 +++ [pid 10003] +++ exited with 0 +++ [pid 5003] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10003, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5003] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5003] umount2("./291", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] openat(AT_FDCWD, "./291", 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("./291/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./291/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5003] unlink("./291/binderfs") = 0 [ 287.388353][ T28] R13: d5e172a4510865ec R14: 9837512483e3bdcd R15: 00007f38e1c727a8 [ 287.396381][ T28] [ 287.399416][ T28] INFO: task syz-executor351:6404 blocked for more than 145 seconds. [ 287.407673][ T28] Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 287.415378][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.424132][ T28] task:syz-executor351 state:D stack:27696 pid:6404 ppid:5002 flags:0x00004004 [ 287.433400][ T28] Call Trace: [ 287.436752][ T28] [ 287.439701][ T28] __schedule+0xc9a/0x5880 [ 287.444218][ T28] ? find_held_lock+0x2d/0x110 [ 287.449237][ T28] ? io_schedule_timeout+0x150/0x150 [ 287.454581][ T28] ? mark_held_locks+0x9f/0xe0 [ 287.459531][ T28] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 287.465374][ T28] ? lockdep_hardirqs_on+0x7d/0x100 [ 287.470635][ T28] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 287.476542][ T28] schedule+0xde/0x1a0 [ 287.480608][ T28] wb_wait_for_completion+0x182/0x240 [ 287.486007][ T28] ? wb_writeback+0xa50/0xa50 [ 287.490817][ T28] ? prepare_to_swait_exclusive+0x240/0x240 [ 287.496790][ T28] ? rwsem_down_write_slowpath+0x1220/0x1220 [ 287.502931][ T28] sync_inodes_sb+0x1aa/0xa60 [ 287.507691][ T28] ? try_to_writeback_inodes_sb+0xc0/0xc0 [ 287.513467][ T28] ? get_nr_dirty_inodes+0x60/0x1d0 [ 287.518752][ T28] sync_filesystem.part.0+0xe6/0x1d0 [ 287.524064][ T28] sync_filesystem+0x8f/0xc0 [ 287.528702][ T28] reiserfs_remount+0x129/0x1650 [ 287.533665][ T28] ? finish_unfinished.isra.0+0x1220/0x1220 [ 287.539629][ T28] ? __static_call_return0+0x9/0x10 [ 287.544889][ T28] ? list_lru_count_node+0x14/0x80 [ 287.550164][ T28] ? shrink_dcache_sb+0x1bf/0x360 [ 287.555239][ T28] ? shrink_dentry_list+0x4f0/0x4f0 [ 287.560564][ T28] ? finish_unfinished.isra.0+0x1220/0x1220 [ 287.566553][ T28] legacy_reconfigure+0x119/0x180 [ 287.571629][ T28] reconfigure_super+0x40c/0xa30 [ 287.576652][ T28] ? fs_umode_to_dtype+0xd0/0xd0 [ 287.581624][ T28] path_mount+0x1846/0x1e40 [ 287.586234][ T28] ? kmem_cache_free+0xe9/0x480 [ 287.591127][ T28] ? finish_automount+0x9b0/0x9b0 [ 287.596235][ T28] ? putname+0x102/0x140 [ 287.600592][ T28] __x64_sys_mount+0x283/0x300 [ 287.605357][ T28] ? copy_mnt_ns+0xb30/0xb30 [ 287.610004][ T28] ? lockdep_hardirqs_on+0x7d/0x100 [ 287.615234][ T28] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.620529][ T28] ? ptrace_notify+0xfe/0x140 [ 287.625234][ T28] do_syscall_64+0x39/0xb0 [ 287.629722][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 287.635697][ T28] RIP: 0033:0x7f38e1bedfba [ 287.640267][ T28] RSP: 002b:00007f38d9b77118 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 287.648736][ T28] RAX: ffffffffffffffda RBX: 00007f38d9b776b8 RCX: 00007f38e1bedfba [ 287.657030][ T28] RDX: 00000000200001c0 RSI: 0000000020000100 RDI: 0000000000000000 [ 287.665018][ T28] RBP: 00000000ffffffff R08: 00007f38d9b771b0 R09: 0000000000000000 [ 287.673051][ T28] R10: 0000000001a484bc R11: 0000000000000286 R12: 00000000200001c0 [ 287.681128][ T28] R13: 0000000020000100 R14: 0000000000000000 R15: 00000000200006c0 [ 287.689186][ T28] [pid 5003] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] <... umount2 resumed>) = 0 [pid 5000] <... umount2 resumed>) = 0 [pid 4998] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] lstat("./290/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 4998] openat(AT_FDCWD, "./290/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 5000] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./291/file0", [pid 4998] getdents64(4, [pid 5000] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 4998] <... getdents64 resumed>0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 4998] close(4) = 0 [pid 5000] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] rmdir("./290/file0" [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 4998] <... rmdir resumed>) = 0 [pid 5000] openat(AT_FDCWD, "./291/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 [ 287.692263][ T28] [ 287.692263][ T28] Showing all locks held in the system: [ 287.721870][ T28] 2 locks held by kworker/u4:1/12: [pid 5000] close(4 [pid 4998] getdents64(3, [pid 5000] <... close resumed>) = 0 [pid 4998] <... getdents64 resumed>0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] rmdir("./291/file0" [pid 4998] close(3 [pid 5000] <... rmdir resumed>) = 0 [pid 4998] <... close resumed>) = 0 [pid 4998] rmdir("./290") = 0 [pid 5000] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5000] close(3) = 0 [pid 4998] mkdir("./291", 0777) = 0 [pid 5000] rmdir("./291") = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5000] mkdir("./292", 0777) = 0 [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 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] <... clone resumed>, child_tidptr=0x555556b565d0) = 10007 [pid 5000] <... clone resumed>, child_tidptr=0x555556b565d0) = 10008 ./strace-static-x86_64: Process 10007 attached [pid 10007] set_robust_list(0x555556b565e0, 24) = 0 [pid 10007] chdir("./291") = 0 [pid 10007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10007] setpgid(0, 0) = 0 [pid 10007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10007] write(3, "1000", 4) = 4 [pid 10007] close(3) = 0 [pid 10007] symlink("/dev/binderfs", "./binderfs") = 0 [pid 10007] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 10007] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10007] 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 10008 attached [pid 10008] set_robust_list(0x555556b565e0, 24) = 0 [pid 10007] <... clone resumed>, parent_tid=[10009], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 10009 [pid 10007] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10007] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10009 attached [pid 10009] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 10008] chdir("./292") = 0 [pid 10008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10008] setpgid(0, 0) = 0 [ 287.736192][ T28] #0: ffff88814164d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 [pid 10008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 10009] memfd_create("syzkaller", 0) = 3 [pid 10009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [pid 10008] <... openat resumed>) = 3 [pid 10008] write(3, "1000", 4) = 4 [pid 10009] 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 10008] close(3) = 0 [pid 10008] symlink("/dev/binderfs", "./binderfs") = 0 [ 287.775082][ T28] #1: ffffc90000117db0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 [ 287.788047][ T28] 1 lock held by rcu_tasks_kthre/13: [ 287.793594][ T28] #0: ffffffff8c798430 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 [ 287.804342][ T28] 1 lock held by rcu_tasks_trace/14: [ 287.809916][ T28] #0: ffffffff8c798130 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 [pid 10008] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 10009] <... write resumed>) = 4194304 [pid 10009] munmap(0x7f38d9778000, 4194304 [pid 10008] <... mmap resumed>) = 0x7f38e1b78000 [pid 10008] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE [pid 10009] <... munmap resumed>) = 0 [pid 10009] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 10009] ioctl(4, LOOP_SET_FD, 3 [pid 10008] <... mprotect resumed>) = 0 [pid 10008] 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=[10010], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 10010 ./strace-static-x86_64: Process 10010 attached [pid 10009] <... ioctl resumed>) = 0 [pid 10009] close(3) = 0 [pid 10009] mkdir("./file0", 0777) = 0 [ 287.821653][ T28] 1 lock held by khungtaskd/28: [ 287.826813][ T28] #0: ffffffff8c799040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 [ 287.837335][ T28] 2 locks held by kworker/u4:5/2413: [ 287.841028][T10009] loop0: detected capacity change from 0 to 8192 [ 287.843176][ T28] #0: ffff88814164d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 [ 287.860095][ T28] #1: ffffc9000ae6fdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 [pid 10009] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 10008] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 10010] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 10008] <... futex resumed>) = 0 [pid 10010] memfd_create("syzkaller", 0 [pid 10008] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10010] <... memfd_create resumed>) = 3 [ 287.872487][ T28] 2 locks held by kworker/0:3/3478: [ 287.878254][ T28] #0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 [ 287.879466][T10009] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 287.889214][ T28] #1: ffffc9000d887db0 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 [ 287.903566][T10009] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 10010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 287.914069][ T28] 2 locks held by kworker/u4:6/4258: [ 287.923295][T10009] REISERFS (device loop0): using ordered data mode [ 287.928480][ T28] #0: ffff88814164d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 [ 287.935053][T10009] reiserfs: using flush barriers [ 287.946184][ T28] #1: ffffc900031dfdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 [ 287.962687][T10009] 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 [ 287.962802][ T28] 2 locks held by getty/4750: [ 287.984047][ T28] #0: ffff888028787098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 [ 287.994444][ T28] #1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 [ 287.994757][T10009] REISERFS (device loop0): checking transaction log (loop0) [ 288.012700][ T28] 3 locks held by strace-static-x/4994: [ 288.019417][T10009] REISERFS (device loop0): Using r5 hash to sort names [pid 10010] 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 10009] <... mount resumed>) = 0 [pid 10009] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 10009] chdir("./file0") = 0 [pid 10009] ioctl(4, LOOP_CLR_FD) = 0 [pid 10009] close(4) = 0 [pid 10009] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10007] <... futex resumed>) = 0 [pid 10007] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10007] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10009] <... futex resumed>) = 1 [pid 10009] mkdir("./file1", 000) = 0 [pid 10009] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10007] <... futex resumed>) = 0 [pid 10007] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10007] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10009] <... futex resumed>) = 1 [pid 10009] mkdir("./bus", 000) = 0 [pid 10009] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10007] <... futex resumed>) = 0 [pid 10007] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10007] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10009] <... futex resumed>) = 1 [pid 10009] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 10010] munmap(0x7f38d9778000, 4194304) = 0 [ 288.026491][T10009] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 288.026532][ T28] #0: [ 288.039241][T10009] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 288.040078][ T28] ffff8880b993c5d8 (&rq->__lock){-.-.}-{2:2}, at: mm_access+0x4c/0x150 [ 288.065532][ T28] #1: ffffffff8c799040 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x20a/0x520 [pid 10010] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 10010] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 10010] close(3) = 0 [pid 10010] mkdir("./file0", 0777) = 0 [ 288.076173][ T28] #2: ffff8880b993c5d8 (&rq->__lock){-.-.}-{2:2}, at: wait_consider_task+0x611/0x3ce0 [ 288.076608][T10009] overlayfs: upper fs needs to support d_type. [ 288.085950][ T28] 2 locks held by syz-executor351/5003: [ 288.093397][T10010] loop2: detected capacity change from 0 to 8192 [ 288.097988][ T28] #0: ffff88807bb0c0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 [ 288.106361][T10009] overlayfs: upper fs does not support tmpfile. [pid 10010] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 10007] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10007] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 288.115063][ T28] #1: ffffffff8c7a44b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 [ 288.121830][T10010] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 288.132215][ T28] 4 locks held by syz-executor351/6222: [ 288.150400][ T28] #0: ffff888077c5c0e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 [ 288.161046][ T28] #1: ffff88807b6cc460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 [pid 10007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 10007] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10007] 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=[10013], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 10013 [pid 10007] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10007] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10013 attached [pid 10013] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 10013] mkdir(".", 0777) = -1 EEXIST (File exists) [ 288.161923][T10009] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 288.171689][ T28] #2: ffff8880787cb7e0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 [ 288.179210][T10010] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 288.189560][ T28] #3: ffff888070895260 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 [ 288.201416][T10009] overlayfs: failed to resolve './file0': -2 [ 288.210621][T10010] REISERFS (device loop2): using ordered data mode [pid 10013] 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 10013] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 10013] chdir(".") = 0 [pid 10013] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 10007] <... futex resumed>) = 0 [pid 10013] <... futex resumed>) = 1 [ 288.223095][T10010] reiserfs: using flush barriers [ 288.225240][ T28] 2 locks held by syz-executor351/6231: [ 288.229373][T10010] 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 [ 288.233849][ T28] #0: ffff88807b6cc0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 [ 288.250946][T10010] REISERFS (device loop2): checking transaction log (loop2) [pid 10013] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10010] <... mount resumed>) = 0 [pid 10010] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 10010] chdir("./file0") = 0 [pid 10010] ioctl(4, LOOP_CLR_FD) = 0 [pid 10010] close(4) = 0 [pid 10010] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 10010] futex(0x7f38e1c727a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10008] <... futex resumed>) = 0 [pid 10008] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 288.261170][ T28] #1: ffff88801f1cc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 [ 288.279244][ T28] 4 locks held by syz-executor351/6396: [ 288.279861][T10010] REISERFS (device loop2): Using r5 hash to sort names [ 288.285713][ T28] #0: [ 288.292952][T10010] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 288.293048][ T28] ffff88806fffa0e0 [ 288.295849][T10010] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 10008] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10010] <... futex resumed>) = 0 [pid 10010] mkdir("./file1", 000) = 0 [pid 10010] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10008] <... futex resumed>) = 0 [pid 10008] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10008] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10010] <... futex resumed>) = 1 [pid 10010] mkdir("./bus", 000) = 0 [pid 10010] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10008] <... futex resumed>) = 0 [pid 10008] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10008] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 10010] <... futex resumed>) = 1 [ 288.309543][ T28] (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 [ 288.335967][ T28] #1: ffff88802c614460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 [ 288.346835][ T28] #2: ffff8880708bd260 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 [ 288.347289][T10010] overlayfs: upper fs needs to support d_type. [ 288.357914][ T28] #3: ffff8880787ce640 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 [pid 10010] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1," [pid 10008] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 10008] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38d9b57000 [pid 10008] mprotect(0x7f38d9b58000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 10008] 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=[10014], tls=0x7f38d9b77700, child_tidptr=0x7f38d9b779d0) = 10014 [pid 10008] futex(0x7f38e1c727b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10008] futex(0x7f38e1c727bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 10014 attached [pid 10014] set_robust_list(0x7f38d9b779e0, 24) = 0 [pid 10014] mkdir(".", 0777) = -1 EEXIST (File exists) [ 288.367497][T10010] overlayfs: upper fs does not support tmpfile. [ 288.376343][ T28] 2 locks held by syz-executor351/6404: [ 288.382698][T10010] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 288.391767][ T28] #0: ffff88802c6140e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 [ 288.407385][ T28] #1: ffff88801f1da7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 [ 288.407818][T10010] overlayfs: failed to resolve './file0': -2 [pid 10014] 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 10014] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 10014] chdir(".") = 0 [pid 10014] futex(0x7f38e1c727bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 10008] <... futex resumed>) = 0 [pid 10014] <... futex resumed>) = 1 [ 288.424067][ T28] 5 locks held by kworker/u4:7/7985: [ 288.429869][ T28] 4 locks held by syz-executor351/9883: [ 288.435725][ T28] #0: ffff888079f840e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 [ 288.447276][ T28] #1: ffff888078a74460 (sb_writers#9){.+.+}-{0:0}, at: ovl_fill_super+0x1c5e/0x7270 [ 288.456869][ T28] #2: ffff8880757aaaa0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 [pid 10014] futex(0x7f38e1c727b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 10007] exit_group(0) = ? [pid 10013] <... futex resumed>) = ? [pid 10013] +++ exited with 0 +++ [ 288.467313][ T28] #3: ffff8880757a82e0 (&type->i_mutex_dir_key#6/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x72c/0xb00 [ 288.479584][ T28] 2 locks held by syz-executor351/9895: [ 288.485575][ T28] #0: ffff888078a740e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: path_mount+0x1401/0x1e40 [ 288.495633][ T28] #1: ffff88801f16c7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 [ 288.505905][ T28] 2 locks held by syz-executor351/10009: [ 288.511590][ T28] #0: ffff88806f5500e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 [pid 10010] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 10010] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 10008] exit_group(0 [pid 10014] <... futex resumed>) = ? [pid 10008] <... exit_group resumed>) = ? [pid 10014] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = 0 [pid 5003] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5003] lstat("./291/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5003] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 10010] <... futex resumed>) = ? [pid 10009] <... mount resumed>) = ? [pid 10010] +++ exited with 0 +++ [pid 10008] +++ exited with 0 +++ [pid 5003] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10008, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5000] restart_syscall(<... resuming interrupted clone ...> [pid 5003] openat(AT_FDCWD, "./291/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... restart_syscall resumed>) = 0 [pid 10009] +++ exited with 0 +++ [pid 10007] +++ exited with 0 +++ [pid 5000] umount2("./292", MNT_DETACH|UMOUNT_NOFOLLOW [pid 4998] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10007, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5000] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] openat(AT_FDCWD, "./292", 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("./292/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5000] lstat("./292/binderfs", [pid 4998] umount2("./291", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5000] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5000] unlink("./292/binderfs" [pid 4998] openat(AT_FDCWD, "./291", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5000] <... unlink resumed>) = 0 [pid 4998] <... openat resumed>) = 3 [pid 5000] umount2("./292/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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("./291/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 288.521749][ T28] #1: ffffffff8c7a44b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 [ 288.533129][ T28] 1 lock held by syz-executor351/10010: [ 288.538703][ T28] #0: ffff8880705760e0 (&type->s_umount_key#41/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 [ 288.548945][ T28] [ 288.566351][ T28] ============================================= [ 288.566351][ T28] [pid 4998] lstat("./291/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 4998] unlink("./291/binderfs") = 0 [pid 4998] umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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 5003] getdents64(4, 0x555556b5f660 /* 0 entries */, 32768) = 0 [pid 5003] close(4) = 0 [pid 5003] rmdir("./291/file0") = 0 [pid 5003] getdents64(3, 0x555556b57620 /* 0 entries */, 32768) = 0 [pid 5003] close(3) = 0 [pid 5003] rmdir("./291") = 0 [pid 5003] mkdir("./292", 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) = 10015 ./strace-static-x86_64: Process 10015 attached [pid 10015] set_robust_list(0x555556b565e0, 24) = 0 [pid 10015] chdir("./292") = 0 [pid 10015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 10015] setpgid(0, 0) = 0 [pid 10015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 10015] write(3, "1000", 4) = 4 [pid 10015] close(3) = 0 [pid 10015] symlink("/dev/binderfs", "./binderfs") = 0 [pid 10015] futex(0x7f38e1c727ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f38e1b78000 [pid 10015] mprotect(0x7f38e1b79000, 131072, PROT_READ|PROT_WRITE) = 0 [ 288.587529][ T28] NMI backtrace for cpu 1 [ 288.591897][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 288.601366][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 288.611431][ T28] Call Trace: [ 288.614716][ T28] [ 288.617678][ T28] dump_stack_lvl+0xd9/0x150 [ 288.622298][ T28] nmi_cpu_backtrace+0x29c/0x350 [ 288.627276][ T28] ? lapic_can_unplug_cpu+0xa0/0xa0 [pid 10015] 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=[10016], tls=0x7f38e1b98700, child_tidptr=0x7f38e1b989d0) = 10016 ./strace-static-x86_64: Process 10016 attached [pid 10015] futex(0x7f38e1c727a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 10015] futex(0x7f38e1c727ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 10016] set_robust_list(0x7f38e1b989e0, 24) = 0 [pid 10016] memfd_create("syzkaller", 0) = 3 [pid 10016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f38d9778000 [ 288.632456][ T28] nmi_trigger_cpumask_backtrace+0x2a4/0x300 [ 288.638437][ T28] watchdog+0xe16/0x1090 [ 288.642698][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 288.648693][ T28] kthread+0x344/0x440 [ 288.652867][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 288.658519][ T28] ret_from_fork+0x1f/0x30 [ 288.662968][ T28] [ 288.666320][ T28] Sending NMI from CPU 1 to CPUs 0: [ 288.671728][ C0] NMI backtrace for cpu 0 [ 288.671738][ C0] CPU: 0 PID: 10016 Comm: syz-executor351 Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 288.671753][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 288.671761][ C0] RIP: 0010:get_page_from_freelist+0x195/0x2c00 [ 288.671787][ C0] Code: 00 00 00 49 8d 47 20 48 89 84 24 20 01 00 00 48 c1 e8 03 4c 01 f0 48 89 44 24 40 8b 04 24 25 00 01 00 00 4d 85 ed 89 44 24 54 <0f> 84 e0 05 00 00 0f 1f 44 00 00 48 8b 44 24 40 0f b6 00 84 c0 74 [ 288.671800][ C0] RSP: 0018:ffffc90004f874a0 EFLAGS: 00000286 [ 288.671812][ C0] RAX: 0000000000000100 RBX: 1ffff920009f0ece RCX: 0000000000000170 [ 288.671820][ C0] RDX: 1ffff11027fff860 RSI: 0000000000000000 RDI: 0000000000140cca [ 288.671829][ C0] RBP: 0000000000140cca R08: 0000000000000001 R09: ffffffff8e7a6fd7 [ 288.671837][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 288.671845][ C0] R13: ffff88813fffae00 R14: dffffc0000000000 R15: ffffc90004f876c0 [ 288.671857][ C0] FS: 00007f38e1b98700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 288.671870][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 288.671879][ C0] CR2: 00007f38d9b77000 CR3: 00000000197d0000 CR4: 0000000000350ef0 [ 288.671887][ C0] Call Trace: [ 288.671891][ C0] [ 288.671897][ C0] ? find_held_lock+0x2d/0x110 [ 288.671919][ C0] ? __zone_watermark_ok+0x4d0/0x4d0 [ 288.671939][ C0] ? prepare_alloc_pages+0x178/0x570 [ 288.671958][ C0] ? mark_lock.part.0+0xee/0x1970 [ 288.671977][ C0] __alloc_pages+0x1cb/0x4a0 [ 288.671996][ C0] ? __alloc_pages_slowpath.constprop.0+0x2170/0x2170 [ 288.672019][ C0] ? __lock_acquire+0xbe1/0x5df0 [ 288.672045][ C0] __folio_alloc+0x16/0x40 [ 288.672064][ C0] vma_alloc_folio+0x155/0x890 [ 288.672082][ C0] ? policy_nodemask+0x1c0/0x1c0 [ 288.672102][ C0] shmem_alloc_folio+0x119/0x1e0 [ 288.672120][ C0] ? shmem_mmap+0x7f0/0x7f0 [ 288.672140][ C0] ? percpu_counter_add_batch+0x170/0x1e0 [ 288.672161][ C0] ? __vm_enough_memory+0x188/0x3f0 [ 288.672182][ C0] shmem_alloc_and_acct_folio+0x15e/0x5d0 [ 288.672202][ C0] shmem_get_folio_gfp+0x9cc/0x1a80 [ 288.672223][ C0] ? shmem_alloc_and_acct_folio+0x5d0/0x5d0 [ 288.672243][ C0] ? folio_mapping+0x11a/0x210 [ 288.672263][ C0] shmem_write_begin+0x14a/0x380 [ 288.672282][ C0] ? shmem_file_read_iter+0xa60/0xa60 [ 288.672302][ C0] generic_perform_write+0x256/0x570 [ 288.672321][ C0] ? generic_file_readonly_mmap+0x180/0x180 [ 288.672338][ C0] ? new_inode+0x280/0x280 [ 288.672355][ C0] ? generic_write_checks+0x2c0/0x400 [ 288.672371][ C0] __generic_file_write_iter+0x2ae/0x500 [ 288.672391][ C0] generic_file_write_iter+0xe3/0x350 [ 288.672409][ C0] vfs_write+0x945/0xd50 [ 288.672422][ C0] ? kernel_write+0x670/0x670 [ 288.672433][ C0] ? recalc_sigpending_tsk+0x18b/0x1d0 [ 288.672448][ C0] ? __fget_files+0x26a/0x480 [ 288.672468][ C0] ? __fget_light+0xe5/0x270 [ 288.672492][ C0] ksys_write+0x12b/0x250 [ 288.672503][ C0] ? __ia32_sys_read+0xb0/0xb0 [ 288.672514][ C0] ? lockdep_hardirqs_on+0x7d/0x100 [ 288.672530][ C0] ? _raw_spin_unlock_irq+0x2e/0x50 [ 288.672548][ C0] ? ptrace_notify+0xfe/0x140 [ 288.672564][ C0] do_syscall_64+0x39/0xb0 [ 288.672584][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 288.672604][ C0] RIP: 0033:0x7f38e1ba8eff [ 288.672614][ C0] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 [ 288.672626][ C0] RSP: 002b:00007f38e1b980f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 288.672638][ C0] RAX: ffffffffffffffda RBX: 00007f38e1b986b8 RCX: 00007f38e1ba8eff [ 288.672647][ C0] RDX: 0000000000400000 RSI: 00007f38d9778000 RDI: 0000000000000003 [ 288.672655][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000010e8 [ 288.672663][ C0] R10: 0000000000400000 R11: 0000000000000293 R12: 0000000020001100 [ 288.672671][ C0] R13: 0000000020001140 R14: 00000000000010ee R15: 0000000020000340 [ 288.672683][ C0] [ 289.086946][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 289.093957][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-13466-gfc4354c6e5c2 #0 [ 289.103505][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 289.113572][ T28] Call Trace: [ 289.116880][ T28] [ 289.119811][ T28] dump_stack_lvl+0xd9/0x150 [ 289.124416][ T28] panic+0x686/0x730 [ 289.128308][ T28] ? panic_smp_self_stop+0xa0/0xa0 [ 289.133442][ T28] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 289.138633][ T28] ? preempt_schedule_thunk+0x1a/0x20 [ 289.144030][ T28] ? watchdog+0xbe8/0x1090 [ 289.148475][ T28] watchdog+0xbf9/0x1090 [ 289.152735][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 289.158741][ T28] kthread+0x344/0x440 [ 289.162832][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 289.168477][ T28] ret_from_fork+0x1f/0x30 [ 289.172929][ T28] [ 289.176571][ T28] Kernel Offset: disabled [ 289.180889][ T28] Rebooting in 86400 seconds..