./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor326032782 <...> Warning: Permanently added '10.128.0.76' (ED25519) to the list of known hosts. execve("./syz-executor326032782", ["./syz-executor326032782"], 0x7ffe53d11f10 /* 10 vars */) = 0 brk(NULL) = 0x555555e46000 brk(0x555555e46d00) = 0x555555e46d00 arch_prctl(ARCH_SET_FS, 0x555555e46380) = 0 set_tid_address(0x555555e46650) = 5038 set_robust_list(0x555555e46660, 24) = 0 rseq(0x555555e46ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor326032782", 4096) = 27 getrandom("\x72\x80\xb2\xf7\x32\x4f\xe2\xd3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555e46d00 brk(0x555555e67d00) = 0x555555e67d00 brk(0x555555e68000) = 0x555555e68000 mprotect(0x7f7c07484000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("./syzkaller.w5XvSU", 0700) = 0 chmod("./syzkaller.w5XvSU", 0777) = 0 chdir("./syzkaller.w5XvSU") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5039 attached , child_tidptr=0x555555e46650) = 5039 [pid 5039] set_robust_list(0x555555e46660, 24) = 0 [pid 5039] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5039] setsid() = 1 [pid 5039] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5039] unshare(CLONE_NEWNS) = 0 [pid 5039] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5039] unshare(CLONE_NEWIPC) = 0 [pid 5039] unshare(CLONE_NEWCGROUP) = 0 [pid 5039] unshare(CLONE_NEWUTS) = 0 [pid 5039] unshare(CLONE_SYSVSEM) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "16777216", 8) = 8 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "536870912", 9) = 9 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "8192", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5039] close(3) = 0 [pid 5039] getpid() = 1 [pid 5039] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5042] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 2 [pid 5042] <... set_robust_list resumed>) = 0 [pid 5042] chdir("./0") = 0 [pid 5042] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5042] setpgid(0, 0) = 0 [pid 5042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5042] write(3, "1000", 4) = 4 [pid 5042] close(3) = 0 [pid 5042] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5042] memfd_create("syzkaller", 0) = 3 [pid 5042] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [ 74.262951][ T5042] syz-executor326[5042]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [pid 5042] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5042] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5042] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5042] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5042] close(3) = 0 [pid 5042] mkdir("./file0", 0777) = 0 [ 74.332549][ T5042] loop0: detected capacity change from 0 to 8192 [ 74.346836][ T5042] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.360001][ T5042] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 74.369429][ T5042] REISERFS (device loop0): using ordered data mode [ 74.375985][ T5042] reiserfs: using flush barriers [pid 5042] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5042] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5042] chdir("./file0") = 0 [pid 5042] ioctl(4, LOOP_CLR_FD) = 0 [pid 5042] close(4) = 0 [pid 5042] mkdir(".", 0777) = -1 EEXIST (File exists) [ 74.382768][ T5042] 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 [ 74.399992][ T5042] REISERFS (device loop0): checking transaction log (loop0) [ 74.410045][ T5042] REISERFS (device loop0): Using r5 hash to sort names [ 74.426138][ T5042] reiserfs: enabling write barrier flush mode [pid 5042] mount(NULL, ".", 0x200000c0, 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 5042] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5042] chdir(".") = 0 [pid 5042] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5042] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5042] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5042] close(3) = 0 [pid 5042] close(4) = 0 [pid 5042] close(5) = 0 [pid 5042] close(6) = -1 EBADF (Bad file descriptor) [pid 5042] close(7) = -1 EBADF (Bad file descriptor) [pid 5042] close(8) = -1 EBADF (Bad file descriptor) [pid 5042] close(9) = -1 EBADF (Bad file descriptor) [pid 5042] close(10) = -1 EBADF (Bad file descriptor) [pid 5042] close(11) = -1 EBADF (Bad file descriptor) [pid 5042] close(12) = -1 EBADF (Bad file descriptor) [pid 5042] close(13) = -1 EBADF (Bad file descriptor) [pid 5042] close(14) = -1 EBADF (Bad file descriptor) [pid 5042] close(15) = -1 EBADF (Bad file descriptor) [pid 5042] close(16) = -1 EBADF (Bad file descriptor) [pid 5042] close(17) = -1 EBADF (Bad file descriptor) [pid 5042] close(18) = -1 EBADF (Bad file descriptor) [pid 5042] close(19) = -1 EBADF (Bad file descriptor) [pid 5042] close(20) = -1 EBADF (Bad file descriptor) [pid 5042] close(21) = -1 EBADF (Bad file descriptor) [pid 5042] close(22) = -1 EBADF (Bad file descriptor) [pid 5042] close(23) = -1 EBADF (Bad file descriptor) [pid 5042] close(24) = -1 EBADF (Bad file descriptor) [pid 5042] close(25) = -1 EBADF (Bad file descriptor) [pid 5042] close(26) = -1 EBADF (Bad file descriptor) [pid 5042] close(27) = -1 EBADF (Bad file descriptor) [pid 5042] close(28) = -1 EBADF (Bad file descriptor) [pid 5042] close(29) = -1 EBADF (Bad file descriptor) [pid 5042] exit_group(0) = ? [pid 5042] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5039] umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 74.447826][ T5042] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./0/binderfs") = 0 [pid 5039] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./0/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./0") = 0 [pid 5039] mkdir("./1", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 3 ./strace-static-x86_64: Process 5044 attached [pid 5044] set_robust_list(0x555555e46660, 24) = 0 [pid 5044] chdir("./1") = 0 [pid 5044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5044] setpgid(0, 0) = 0 [pid 5044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "1000", 4) = 4 [pid 5044] close(3) = 0 [pid 5044] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5044] memfd_create("syzkaller", 0) = 3 [pid 5044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5044] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5044] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5044] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5044] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5044] close(3) = 0 [pid 5044] mkdir("./file0", 0777) = 0 [ 74.657677][ T5044] loop0: detected capacity change from 0 to 8192 [ 74.669911][ T5044] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.683048][ T5044] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 74.692410][ T5044] REISERFS (device loop0): using ordered data mode [ 74.699011][ T5044] reiserfs: using flush barriers [pid 5044] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5044] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5044] chdir("./file0") = 0 [pid 5044] ioctl(4, LOOP_CLR_FD) = 0 [pid 5044] close(4) = 0 [pid 5044] mkdir(".", 0777) = -1 EEXIST (File exists) [ 74.705620][ T5044] 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 [ 74.722204][ T5044] REISERFS (device loop0): checking transaction log (loop0) [ 74.730587][ T5044] REISERFS (device loop0): Using r5 hash to sort names [ 74.747998][ T5044] reiserfs: enabling write barrier flush mode [pid 5044] mount(NULL, ".", 0x200000c0, 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 5044] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5044] chdir(".") = 0 [pid 5044] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5044] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5044] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5044] close(3) = 0 [pid 5044] close(4) = 0 [pid 5044] close(5) = 0 [pid 5044] close(6) = -1 EBADF (Bad file descriptor) [pid 5044] close(7) = -1 EBADF (Bad file descriptor) [pid 5044] close(8) = -1 EBADF (Bad file descriptor) [pid 5044] close(9) = -1 EBADF (Bad file descriptor) [pid 5044] close(10) = -1 EBADF (Bad file descriptor) [pid 5044] close(11) = -1 EBADF (Bad file descriptor) [pid 5044] close(12) = -1 EBADF (Bad file descriptor) [pid 5044] close(13) = -1 EBADF (Bad file descriptor) [pid 5044] close(14) = -1 EBADF (Bad file descriptor) [pid 5044] close(15) = -1 EBADF (Bad file descriptor) [pid 5044] close(16) = -1 EBADF (Bad file descriptor) [pid 5044] close(17) = -1 EBADF (Bad file descriptor) [pid 5044] close(18) = -1 EBADF (Bad file descriptor) [pid 5044] close(19) = -1 EBADF (Bad file descriptor) [pid 5044] close(20) = -1 EBADF (Bad file descriptor) [pid 5044] close(21) = -1 EBADF (Bad file descriptor) [pid 5044] close(22) = -1 EBADF (Bad file descriptor) [pid 5044] close(23) = -1 EBADF (Bad file descriptor) [pid 5044] close(24) = -1 EBADF (Bad file descriptor) [pid 5044] close(25) = -1 EBADF (Bad file descriptor) [pid 5044] close(26) = -1 EBADF (Bad file descriptor) [pid 5044] close(27) = -1 EBADF (Bad file descriptor) [pid 5044] close(28) = -1 EBADF (Bad file descriptor) [pid 5044] close(29) = -1 EBADF (Bad file descriptor) [pid 5044] exit_group(0) = ? [pid 5044] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 74.759303][ T5044] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] unlink("./1/binderfs") = 0 [pid 5039] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./1/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./1") = 0 [pid 5039] mkdir("./2", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 4 ./strace-static-x86_64: Process 5046 attached [pid 5046] set_robust_list(0x555555e46660, 24) = 0 [pid 5046] chdir("./2") = 0 [pid 5046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5046] setpgid(0, 0) = 0 [pid 5046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5046] write(3, "1000", 4) = 4 [pid 5046] close(3) = 0 [pid 5046] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5046] memfd_create("syzkaller", 0) = 3 [pid 5046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5046] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5046] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5046] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5046] close(3) = 0 [pid 5046] mkdir("./file0", 0777) = 0 [ 74.951551][ T5046] loop0: detected capacity change from 0 to 8192 [ 74.962024][ T5046] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 74.975127][ T5046] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 74.984451][ T5046] REISERFS (device loop0): using ordered data mode [ 74.991142][ T5046] reiserfs: using flush barriers [pid 5046] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5046] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5046] chdir("./file0") = 0 [pid 5046] ioctl(4, LOOP_CLR_FD) = 0 [pid 5046] close(4) = 0 [pid 5046] mkdir(".", 0777) = -1 EEXIST (File exists) [ 74.997555][ T5046] 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 [ 75.014065][ T5046] REISERFS (device loop0): checking transaction log (loop0) [ 75.022604][ T5046] REISERFS (device loop0): Using r5 hash to sort names [ 75.035869][ T5046] reiserfs: enabling write barrier flush mode [pid 5046] mount(NULL, ".", 0x200000c0, 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 5046] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5046] chdir(".") = 0 [pid 5046] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5046] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5046] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5046] close(3) = 0 [pid 5046] close(4) = 0 [pid 5046] close(5) = 0 [pid 5046] close(6) = -1 EBADF (Bad file descriptor) [pid 5046] close(7) = -1 EBADF (Bad file descriptor) [pid 5046] close(8) = -1 EBADF (Bad file descriptor) [pid 5046] close(9) = -1 EBADF (Bad file descriptor) [pid 5046] close(10) = -1 EBADF (Bad file descriptor) [pid 5046] close(11) = -1 EBADF (Bad file descriptor) [pid 5046] close(12) = -1 EBADF (Bad file descriptor) [pid 5046] close(13) = -1 EBADF (Bad file descriptor) [pid 5046] close(14) = -1 EBADF (Bad file descriptor) [pid 5046] close(15) = -1 EBADF (Bad file descriptor) [pid 5046] close(16) = -1 EBADF (Bad file descriptor) [pid 5046] close(17) = -1 EBADF (Bad file descriptor) [pid 5046] close(18) = -1 EBADF (Bad file descriptor) [pid 5046] close(19) = -1 EBADF (Bad file descriptor) [pid 5046] close(20) = -1 EBADF (Bad file descriptor) [pid 5046] close(21) = -1 EBADF (Bad file descriptor) [pid 5046] close(22) = -1 EBADF (Bad file descriptor) [pid 5046] close(23) = -1 EBADF (Bad file descriptor) [pid 5046] close(24) = -1 EBADF (Bad file descriptor) [pid 5046] close(25) = -1 EBADF (Bad file descriptor) [pid 5046] close(26) = -1 EBADF (Bad file descriptor) [pid 5046] close(27) = -1 EBADF (Bad file descriptor) [pid 5046] close(28) = -1 EBADF (Bad file descriptor) [pid 5046] close(29) = -1 EBADF (Bad file descriptor) [pid 5046] exit_group(0) = ? [pid 5046] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./2/binderfs") = 0 [ 75.046879][ T5046] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./2/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./2") = 0 [pid 5039] mkdir("./3", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5048 attached , child_tidptr=0x555555e46650) = 5 [pid 5048] set_robust_list(0x555555e46660, 24) = 0 [pid 5048] chdir("./3") = 0 [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5048] setpgid(0, 0) = 0 [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5048] write(3, "1000", 4) = 4 [pid 5048] close(3) = 0 [pid 5048] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5048] memfd_create("syzkaller", 0) = 3 [pid 5048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5048] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5048] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5048] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5048] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5048] close(3) = 0 [pid 5048] mkdir("./file0", 0777) = 0 [ 75.231241][ T5048] loop0: detected capacity change from 0 to 8192 [ 75.242916][ T5048] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.256022][ T5048] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 75.265306][ T5048] REISERFS (device loop0): using ordered data mode [ 75.271839][ T5048] reiserfs: using flush barriers [pid 5048] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5048] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5048] chdir("./file0") = 0 [pid 5048] ioctl(4, LOOP_CLR_FD) = 0 [pid 5048] close(4) = 0 [pid 5048] mkdir(".", 0777) = -1 EEXIST (File exists) [ 75.278371][ T5048] 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 [ 75.295093][ T5048] REISERFS (device loop0): checking transaction log (loop0) [ 75.303317][ T5048] REISERFS (device loop0): Using r5 hash to sort names [pid 5048] mount(NULL, ".", 0x200000c0, 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 5048] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5048] chdir(".") = 0 [pid 5048] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5048] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5048] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5048] close(3) = 0 [pid 5048] close(4) = 0 [pid 5048] close(5) = 0 [pid 5048] close(6) = -1 EBADF (Bad file descriptor) [pid 5048] close(7) = -1 EBADF (Bad file descriptor) [pid 5048] close(8) = -1 EBADF (Bad file descriptor) [pid 5048] close(9) = -1 EBADF (Bad file descriptor) [pid 5048] close(10) = -1 EBADF (Bad file descriptor) [pid 5048] close(11) = -1 EBADF (Bad file descriptor) [pid 5048] close(12) = -1 EBADF (Bad file descriptor) [pid 5048] close(13) = -1 EBADF (Bad file descriptor) [pid 5048] close(14) = -1 EBADF (Bad file descriptor) [pid 5048] close(15) = -1 EBADF (Bad file descriptor) [pid 5048] close(16) = -1 EBADF (Bad file descriptor) [pid 5048] close(17) = -1 EBADF (Bad file descriptor) [pid 5048] close(18) = -1 EBADF (Bad file descriptor) [pid 5048] close(19) = -1 EBADF (Bad file descriptor) [pid 5048] close(20) = -1 EBADF (Bad file descriptor) [pid 5048] close(21) = -1 EBADF (Bad file descriptor) [pid 5048] close(22) = -1 EBADF (Bad file descriptor) [pid 5048] close(23) = -1 EBADF (Bad file descriptor) [pid 5048] close(24) = -1 EBADF (Bad file descriptor) [pid 5048] close(25) = -1 EBADF (Bad file descriptor) [pid 5048] close(26) = -1 EBADF (Bad file descriptor) [pid 5048] close(27) = -1 EBADF (Bad file descriptor) [pid 5048] close(28) = -1 EBADF (Bad file descriptor) [pid 5048] close(29) = -1 EBADF (Bad file descriptor) [pid 5048] exit_group(0) = ? [pid 5048] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./3/binderfs") = 0 [ 75.328420][ T5048] reiserfs: enabling write barrier flush mode [ 75.338332][ T5048] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./3/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./3") = 0 [pid 5039] mkdir("./4", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 6 ./strace-static-x86_64: Process 5050 attached [pid 5050] set_robust_list(0x555555e46660, 24) = 0 [pid 5050] chdir("./4") = 0 [pid 5050] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5050] setpgid(0, 0) = 0 [pid 5050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5050] write(3, "1000", 4) = 4 [pid 5050] close(3) = 0 [pid 5050] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5050] memfd_create("syzkaller", 0) = 3 [pid 5050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5050] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5050] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5050] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5050] close(3) = 0 [pid 5050] mkdir("./file0", 0777) = 0 [ 75.498309][ T5050] loop0: detected capacity change from 0 to 8192 [ 75.509532][ T5050] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.522848][ T5050] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 75.532219][ T5050] REISERFS (device loop0): using ordered data mode [ 75.538856][ T5050] reiserfs: using flush barriers [pid 5050] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5050] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5050] chdir("./file0") = 0 [pid 5050] ioctl(4, LOOP_CLR_FD) = 0 [pid 5050] close(4) = 0 [pid 5050] mkdir(".", 0777) = -1 EEXIST (File exists) [ 75.545550][ T5050] 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 [ 75.562210][ T5050] REISERFS (device loop0): checking transaction log (loop0) [ 75.570503][ T5050] REISERFS (device loop0): Using r5 hash to sort names [ 75.582803][ T5050] reiserfs: enabling write barrier flush mode [pid 5050] mount(NULL, ".", 0x200000c0, 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 5050] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5050] chdir(".") = 0 [pid 5050] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5050] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5050] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5050] close(3) = 0 [pid 5050] close(4) = 0 [pid 5050] close(5) = 0 [pid 5050] close(6) = -1 EBADF (Bad file descriptor) [pid 5050] close(7) = -1 EBADF (Bad file descriptor) [pid 5050] close(8) = -1 EBADF (Bad file descriptor) [pid 5050] close(9) = -1 EBADF (Bad file descriptor) [pid 5050] close(10) = -1 EBADF (Bad file descriptor) [pid 5050] close(11) = -1 EBADF (Bad file descriptor) [pid 5050] close(12) = -1 EBADF (Bad file descriptor) [pid 5050] close(13) = -1 EBADF (Bad file descriptor) [pid 5050] close(14) = -1 EBADF (Bad file descriptor) [pid 5050] close(15) = -1 EBADF (Bad file descriptor) [pid 5050] close(16) = -1 EBADF (Bad file descriptor) [pid 5050] close(17) = -1 EBADF (Bad file descriptor) [pid 5050] close(18) = -1 EBADF (Bad file descriptor) [pid 5050] close(19) = -1 EBADF (Bad file descriptor) [pid 5050] close(20) = -1 EBADF (Bad file descriptor) [pid 5050] close(21) = -1 EBADF (Bad file descriptor) [pid 5050] close(22) = -1 EBADF (Bad file descriptor) [pid 5050] close(23) = -1 EBADF (Bad file descriptor) [pid 5050] close(24) = -1 EBADF (Bad file descriptor) [pid 5050] close(25) = -1 EBADF (Bad file descriptor) [pid 5050] close(26) = -1 EBADF (Bad file descriptor) [pid 5050] close(27) = -1 EBADF (Bad file descriptor) [pid 5050] close(28) = -1 EBADF (Bad file descriptor) [pid 5050] close(29) = -1 EBADF (Bad file descriptor) [pid 5050] exit_group(0) = ? [pid 5050] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./4/binderfs") = 0 [ 75.594162][ T5050] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./4/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./4") = 0 [pid 5039] mkdir("./5", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 7 ./strace-static-x86_64: Process 5052 attached [pid 5052] set_robust_list(0x555555e46660, 24) = 0 [pid 5052] chdir("./5") = 0 [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] setpgid(0, 0) = 0 [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5052] write(3, "1000", 4) = 4 [pid 5052] close(3) = 0 [pid 5052] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5052] memfd_create("syzkaller", 0) = 3 [pid 5052] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5052] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5052] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5052] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5052] close(3) = 0 [pid 5052] mkdir("./file0", 0777) = 0 [ 75.753902][ T5052] loop0: detected capacity change from 0 to 8192 [ 75.765143][ T5052] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 75.778272][ T5052] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 75.787739][ T5052] REISERFS (device loop0): using ordered data mode [ 75.794260][ T5052] reiserfs: using flush barriers [pid 5052] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5052] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5052] chdir("./file0") = 0 [pid 5052] ioctl(4, LOOP_CLR_FD) = 0 [pid 5052] close(4) = 0 [ 75.800932][ T5052] 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 [ 75.817597][ T5052] REISERFS (device loop0): checking transaction log (loop0) [ 75.825942][ T5052] REISERFS (device loop0): Using r5 hash to sort names [pid 5052] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5052] mount(NULL, ".", 0x200000c0, 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 5052] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5052] chdir(".") = 0 [pid 5052] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5052] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5052] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5052] close(3) = 0 [pid 5052] close(4) = 0 [pid 5052] close(5) = 0 [pid 5052] close(6) = -1 EBADF (Bad file descriptor) [pid 5052] close(7) = -1 EBADF (Bad file descriptor) [pid 5052] close(8) = -1 EBADF (Bad file descriptor) [pid 5052] close(9) = -1 EBADF (Bad file descriptor) [pid 5052] close(10) = -1 EBADF (Bad file descriptor) [pid 5052] close(11) = -1 EBADF (Bad file descriptor) [pid 5052] close(12) = -1 EBADF (Bad file descriptor) [pid 5052] close(13) = -1 EBADF (Bad file descriptor) [pid 5052] close(14) = -1 EBADF (Bad file descriptor) [pid 5052] close(15) = -1 EBADF (Bad file descriptor) [pid 5052] close(16) = -1 EBADF (Bad file descriptor) [pid 5052] close(17) = -1 EBADF (Bad file descriptor) [pid 5052] close(18) = -1 EBADF (Bad file descriptor) [pid 5052] close(19) = -1 EBADF (Bad file descriptor) [pid 5052] close(20) = -1 EBADF (Bad file descriptor) [pid 5052] close(21) = -1 EBADF (Bad file descriptor) [pid 5052] close(22) = -1 EBADF (Bad file descriptor) [pid 5052] close(23) = -1 EBADF (Bad file descriptor) [pid 5052] close(24) = -1 EBADF (Bad file descriptor) [pid 5052] close(25) = -1 EBADF (Bad file descriptor) [pid 5052] close(26) = -1 EBADF (Bad file descriptor) [pid 5052] close(27) = -1 EBADF (Bad file descriptor) [pid 5052] close(28) = -1 EBADF (Bad file descriptor) [pid 5052] close(29) = -1 EBADF (Bad file descriptor) [pid 5052] exit_group(0) = ? [pid 5052] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./5/binderfs") = 0 [ 75.850424][ T5052] reiserfs: enabling write barrier flush mode [ 75.860790][ T5052] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./5/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./5") = 0 [pid 5039] mkdir("./6", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5054 attached , child_tidptr=0x555555e46650) = 8 [pid 5054] set_robust_list(0x555555e46660, 24) = 0 [pid 5054] chdir("./6") = 0 [pid 5054] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5054] setpgid(0, 0) = 0 [pid 5054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5054] write(3, "1000", 4) = 4 [pid 5054] close(3) = 0 [pid 5054] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5054] memfd_create("syzkaller", 0) = 3 [pid 5054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5054] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5054] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5054] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5054] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5054] close(3) = 0 [pid 5054] mkdir("./file0", 0777) = 0 [ 76.037575][ T5054] loop0: detected capacity change from 0 to 8192 [ 76.048610][ T5054] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.061954][ T5054] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 76.071635][ T5054] REISERFS (device loop0): using ordered data mode [ 76.078253][ T5054] reiserfs: using flush barriers [pid 5054] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5054] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5054] chdir("./file0") = 0 [pid 5054] ioctl(4, LOOP_CLR_FD) = 0 [pid 5054] close(4) = 0 [pid 5054] mkdir(".", 0777) = -1 EEXIST (File exists) [ 76.084599][ T5054] 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 [ 76.101320][ T5054] REISERFS (device loop0): checking transaction log (loop0) [ 76.109687][ T5054] REISERFS (device loop0): Using r5 hash to sort names [ 76.126759][ T5054] reiserfs: enabling write barrier flush mode [pid 5054] mount(NULL, ".", 0x200000c0, 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 5054] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5054] chdir(".") = 0 [pid 5054] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5054] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5054] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5054] close(3) = 0 [pid 5054] close(4) = 0 [pid 5054] close(5) = 0 [pid 5054] close(6) = -1 EBADF (Bad file descriptor) [pid 5054] close(7) = -1 EBADF (Bad file descriptor) [pid 5054] close(8) = -1 EBADF (Bad file descriptor) [pid 5054] close(9) = -1 EBADF (Bad file descriptor) [pid 5054] close(10) = -1 EBADF (Bad file descriptor) [pid 5054] close(11) = -1 EBADF (Bad file descriptor) [pid 5054] close(12) = -1 EBADF (Bad file descriptor) [pid 5054] close(13) = -1 EBADF (Bad file descriptor) [pid 5054] close(14) = -1 EBADF (Bad file descriptor) [pid 5054] close(15) = -1 EBADF (Bad file descriptor) [pid 5054] close(16) = -1 EBADF (Bad file descriptor) [pid 5054] close(17) = -1 EBADF (Bad file descriptor) [pid 5054] close(18) = -1 EBADF (Bad file descriptor) [pid 5054] close(19) = -1 EBADF (Bad file descriptor) [pid 5054] close(20) = -1 EBADF (Bad file descriptor) [pid 5054] close(21) = -1 EBADF (Bad file descriptor) [pid 5054] close(22) = -1 EBADF (Bad file descriptor) [pid 5054] close(23) = -1 EBADF (Bad file descriptor) [pid 5054] close(24) = -1 EBADF (Bad file descriptor) [pid 5054] close(25) = -1 EBADF (Bad file descriptor) [pid 5054] close(26) = -1 EBADF (Bad file descriptor) [pid 5054] close(27) = -1 EBADF (Bad file descriptor) [pid 5054] close(28) = -1 EBADF (Bad file descriptor) [pid 5054] close(29) = -1 EBADF (Bad file descriptor) [pid 5054] exit_group(0) = ? [pid 5054] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=8, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./6/binderfs") = 0 [ 76.136096][ T5054] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./6/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./6") = 0 [pid 5039] mkdir("./7", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5056 attached , child_tidptr=0x555555e46650) = 9 [pid 5056] set_robust_list(0x555555e46660, 24) = 0 [pid 5056] chdir("./7") = 0 [pid 5056] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5056] setpgid(0, 0) = 0 [pid 5056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5056] write(3, "1000", 4) = 4 [pid 5056] close(3) = 0 [pid 5056] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5056] memfd_create("syzkaller", 0) = 3 [pid 5056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5056] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5056] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5056] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5056] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5056] close(3) = 0 [pid 5056] mkdir("./file0", 0777) = 0 [ 76.327404][ T5056] loop0: detected capacity change from 0 to 8192 [ 76.337945][ T5056] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.351042][ T5056] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 76.360592][ T5056] REISERFS (device loop0): using ordered data mode [ 76.367262][ T5056] reiserfs: using flush barriers [pid 5056] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5056] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5056] chdir("./file0") = 0 [pid 5056] ioctl(4, LOOP_CLR_FD) = 0 [pid 5056] close(4) = 0 [pid 5056] mkdir(".", 0777) = -1 EEXIST (File exists) [ 76.373684][ T5056] 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 [ 76.390536][ T5056] REISERFS (device loop0): checking transaction log (loop0) [ 76.399247][ T5056] REISERFS (device loop0): Using r5 hash to sort names [ 76.416753][ T5056] reiserfs: enabling write barrier flush mode [pid 5056] mount(NULL, ".", 0x200000c0, 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 5056] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5056] chdir(".") = 0 [pid 5056] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5056] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5056] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5056] close(3) = 0 [pid 5056] close(4) = 0 [pid 5056] close(5) = 0 [pid 5056] close(6) = -1 EBADF (Bad file descriptor) [pid 5056] close(7) = -1 EBADF (Bad file descriptor) [pid 5056] close(8) = -1 EBADF (Bad file descriptor) [pid 5056] close(9) = -1 EBADF (Bad file descriptor) [pid 5056] close(10) = -1 EBADF (Bad file descriptor) [pid 5056] close(11) = -1 EBADF (Bad file descriptor) [pid 5056] close(12) = -1 EBADF (Bad file descriptor) [pid 5056] close(13) = -1 EBADF (Bad file descriptor) [pid 5056] close(14) = -1 EBADF (Bad file descriptor) [pid 5056] close(15) = -1 EBADF (Bad file descriptor) [pid 5056] close(16) = -1 EBADF (Bad file descriptor) [pid 5056] close(17) = -1 EBADF (Bad file descriptor) [pid 5056] close(18) = -1 EBADF (Bad file descriptor) [pid 5056] close(19) = -1 EBADF (Bad file descriptor) [pid 5056] close(20) = -1 EBADF (Bad file descriptor) [pid 5056] close(21) = -1 EBADF (Bad file descriptor) [pid 5056] close(22) = -1 EBADF (Bad file descriptor) [pid 5056] close(23) = -1 EBADF (Bad file descriptor) [pid 5056] close(24) = -1 EBADF (Bad file descriptor) [pid 5056] close(25) = -1 EBADF (Bad file descriptor) [pid 5056] close(26) = -1 EBADF (Bad file descriptor) [pid 5056] close(27) = -1 EBADF (Bad file descriptor) [pid 5056] close(28) = -1 EBADF (Bad file descriptor) [pid 5056] close(29) = -1 EBADF (Bad file descriptor) [pid 5056] exit_group(0) = ? [pid 5056] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./7/binderfs") = 0 [ 76.428444][ T5056] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./7/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./7") = 0 [pid 5039] mkdir("./8", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5058 attached [pid 5058] set_robust_list(0x555555e46660, 24) = 0 [pid 5058] chdir("./8") = 0 [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] setpgid(0, 0) = 0 [pid 5058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 10 [pid 5058] <... openat resumed>) = 3 [pid 5058] write(3, "1000", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5058] memfd_create("syzkaller", 0) = 3 [pid 5058] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5058] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5058] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5058] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5058] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5058] close(3) = 0 [pid 5058] mkdir("./file0", 0777) = 0 [ 76.612107][ T5058] loop0: detected capacity change from 0 to 8192 [ 76.624248][ T5058] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.637352][ T5058] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 76.646797][ T5058] REISERFS (device loop0): using ordered data mode [ 76.653331][ T5058] reiserfs: using flush barriers [pid 5058] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5058] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5058] chdir("./file0") = 0 [pid 5058] ioctl(4, LOOP_CLR_FD) = 0 [pid 5058] close(4) = 0 [pid 5058] mkdir(".", 0777) = -1 EEXIST (File exists) [ 76.660102][ T5058] 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 [ 76.677007][ T5058] REISERFS (device loop0): checking transaction log (loop0) [ 76.685560][ T5058] REISERFS (device loop0): Using r5 hash to sort names [pid 5058] mount(NULL, ".", 0x200000c0, 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 5058] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5058] chdir(".") = 0 [pid 5058] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5058] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5058] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5058] close(3) = 0 [pid 5058] close(4) = 0 [pid 5058] close(5) = 0 [pid 5058] close(6) = -1 EBADF (Bad file descriptor) [pid 5058] close(7) = -1 EBADF (Bad file descriptor) [pid 5058] close(8) = -1 EBADF (Bad file descriptor) [pid 5058] close(9) = -1 EBADF (Bad file descriptor) [pid 5058] close(10) = -1 EBADF (Bad file descriptor) [pid 5058] close(11) = -1 EBADF (Bad file descriptor) [pid 5058] close(12) = -1 EBADF (Bad file descriptor) [pid 5058] close(13) = -1 EBADF (Bad file descriptor) [pid 5058] close(14) = -1 EBADF (Bad file descriptor) [pid 5058] close(15) = -1 EBADF (Bad file descriptor) [pid 5058] close(16) = -1 EBADF (Bad file descriptor) [pid 5058] close(17) = -1 EBADF (Bad file descriptor) [pid 5058] close(18) = -1 EBADF (Bad file descriptor) [pid 5058] close(19) = -1 EBADF (Bad file descriptor) [pid 5058] close(20) = -1 EBADF (Bad file descriptor) [pid 5058] close(21) = -1 EBADF (Bad file descriptor) [pid 5058] close(22) = -1 EBADF (Bad file descriptor) [pid 5058] close(23) = -1 EBADF (Bad file descriptor) [pid 5058] close(24) = -1 EBADF (Bad file descriptor) [pid 5058] close(25) = -1 EBADF (Bad file descriptor) [pid 5058] close(26) = -1 EBADF (Bad file descriptor) [pid 5058] close(27) = -1 EBADF (Bad file descriptor) [pid 5058] close(28) = -1 EBADF (Bad file descriptor) [pid 5058] close(29) = -1 EBADF (Bad file descriptor) [pid 5058] exit_group(0) = ? [pid 5058] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./8/binderfs") = 0 [ 76.709184][ T5058] reiserfs: enabling write barrier flush mode [ 76.724321][ T5058] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./8/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./8") = 0 [pid 5039] mkdir("./9", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5060 attached , child_tidptr=0x555555e46650) = 11 [pid 5060] set_robust_list(0x555555e46660, 24) = 0 [pid 5060] chdir("./9") = 0 [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] setpgid(0, 0) = 0 [pid 5060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1000", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5060] memfd_create("syzkaller", 0) = 3 [pid 5060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5060] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5060] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5060] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5060] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5060] close(3) = 0 [pid 5060] mkdir("./file0", 0777) = 0 [ 76.883359][ T5060] loop0: detected capacity change from 0 to 8192 [ 76.894138][ T5060] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 76.907234][ T5060] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 76.916533][ T5060] REISERFS (device loop0): using ordered data mode [ 76.923071][ T5060] reiserfs: using flush barriers [pid 5060] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5060] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5060] chdir("./file0") = 0 [pid 5060] ioctl(4, LOOP_CLR_FD) = 0 [pid 5060] close(4) = 0 [pid 5060] mkdir(".", 0777) = -1 EEXIST (File exists) [ 76.929700][ T5060] 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 [ 76.946337][ T5060] REISERFS (device loop0): checking transaction log (loop0) [ 76.954457][ T5060] REISERFS (device loop0): Using r5 hash to sort names [ 76.968276][ T5060] reiserfs: enabling write barrier flush mode [pid 5060] mount(NULL, ".", 0x200000c0, 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 5060] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5060] chdir(".") = 0 [pid 5060] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5060] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5060] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5060] close(3) = 0 [pid 5060] close(4) = 0 [pid 5060] close(5) = 0 [pid 5060] close(6) = -1 EBADF (Bad file descriptor) [pid 5060] close(7) = -1 EBADF (Bad file descriptor) [pid 5060] close(8) = -1 EBADF (Bad file descriptor) [pid 5060] close(9) = -1 EBADF (Bad file descriptor) [pid 5060] close(10) = -1 EBADF (Bad file descriptor) [pid 5060] close(11) = -1 EBADF (Bad file descriptor) [pid 5060] close(12) = -1 EBADF (Bad file descriptor) [pid 5060] close(13) = -1 EBADF (Bad file descriptor) [pid 5060] close(14) = -1 EBADF (Bad file descriptor) [pid 5060] close(15) = -1 EBADF (Bad file descriptor) [pid 5060] close(16) = -1 EBADF (Bad file descriptor) [pid 5060] close(17) = -1 EBADF (Bad file descriptor) [pid 5060] close(18) = -1 EBADF (Bad file descriptor) [pid 5060] close(19) = -1 EBADF (Bad file descriptor) [pid 5060] close(20) = -1 EBADF (Bad file descriptor) [pid 5060] close(21) = -1 EBADF (Bad file descriptor) [pid 5060] close(22) = -1 EBADF (Bad file descriptor) [pid 5060] close(23) = -1 EBADF (Bad file descriptor) [pid 5060] close(24) = -1 EBADF (Bad file descriptor) [pid 5060] close(25) = -1 EBADF (Bad file descriptor) [pid 5060] close(26) = -1 EBADF (Bad file descriptor) [pid 5060] close(27) = -1 EBADF (Bad file descriptor) [pid 5060] close(28) = -1 EBADF (Bad file descriptor) [pid 5060] close(29) = -1 EBADF (Bad file descriptor) [pid 5060] exit_group(0) = ? [pid 5060] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./9/binderfs") = 0 [ 76.978875][ T5060] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./9/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./9") = 0 [pid 5039] mkdir("./10", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5062 attached [pid 5062] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 12 [pid 5062] <... set_robust_list resumed>) = 0 [pid 5062] chdir("./10") = 0 [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5062] setpgid(0, 0) = 0 [pid 5062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1000", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5062] memfd_create("syzkaller", 0) = 3 [pid 5062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5062] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5062] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5062] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5062] close(3) = 0 [pid 5062] mkdir("./file0", 0777) = 0 [ 77.148333][ T5062] loop0: detected capacity change from 0 to 8192 [ 77.159863][ T5062] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.172938][ T5062] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 77.182527][ T5062] REISERFS (device loop0): using ordered data mode [ 77.189298][ T5062] reiserfs: using flush barriers [pid 5062] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5062] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5062] chdir("./file0") = 0 [pid 5062] ioctl(4, LOOP_CLR_FD) = 0 [pid 5062] close(4) = 0 [pid 5062] mkdir(".", 0777) = -1 EEXIST (File exists) [ 77.195943][ T5062] 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 [ 77.212613][ T5062] REISERFS (device loop0): checking transaction log (loop0) [ 77.221038][ T5062] REISERFS (device loop0): Using r5 hash to sort names [ 77.236312][ T5062] reiserfs: enabling write barrier flush mode [pid 5062] mount(NULL, ".", 0x200000c0, 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 5062] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5062] chdir(".") = 0 [pid 5062] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5062] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5062] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5062] close(3) = 0 [pid 5062] close(4) = 0 [pid 5062] close(5) = 0 [pid 5062] close(6) = -1 EBADF (Bad file descriptor) [pid 5062] close(7) = -1 EBADF (Bad file descriptor) [pid 5062] close(8) = -1 EBADF (Bad file descriptor) [pid 5062] close(9) = -1 EBADF (Bad file descriptor) [pid 5062] close(10) = -1 EBADF (Bad file descriptor) [pid 5062] close(11) = -1 EBADF (Bad file descriptor) [pid 5062] close(12) = -1 EBADF (Bad file descriptor) [pid 5062] close(13) = -1 EBADF (Bad file descriptor) [pid 5062] close(14) = -1 EBADF (Bad file descriptor) [pid 5062] close(15) = -1 EBADF (Bad file descriptor) [pid 5062] close(16) = -1 EBADF (Bad file descriptor) [pid 5062] close(17) = -1 EBADF (Bad file descriptor) [pid 5062] close(18) = -1 EBADF (Bad file descriptor) [pid 5062] close(19) = -1 EBADF (Bad file descriptor) [pid 5062] close(20) = -1 EBADF (Bad file descriptor) [pid 5062] close(21) = -1 EBADF (Bad file descriptor) [pid 5062] close(22) = -1 EBADF (Bad file descriptor) [pid 5062] close(23) = -1 EBADF (Bad file descriptor) [pid 5062] close(24) = -1 EBADF (Bad file descriptor) [pid 5062] close(25) = -1 EBADF (Bad file descriptor) [pid 5062] close(26) = -1 EBADF (Bad file descriptor) [pid 5062] close(27) = -1 EBADF (Bad file descriptor) [pid 5062] close(28) = -1 EBADF (Bad file descriptor) [pid 5062] close(29) = -1 EBADF (Bad file descriptor) [pid 5062] exit_group(0) = ? [pid 5062] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./10/binderfs") = 0 [ 77.250346][ T5062] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./10/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./10") = 0 [pid 5039] mkdir("./11", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 13 ./strace-static-x86_64: Process 5064 attached [pid 5064] set_robust_list(0x555555e46660, 24) = 0 [pid 5064] chdir("./11") = 0 [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] setpgid(0, 0) = 0 [pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1000", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5064] memfd_create("syzkaller", 0) = 3 [pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5064] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5064] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5064] close(3) = 0 [pid 5064] mkdir("./file0", 0777) = 0 [ 77.416575][ T5064] loop0: detected capacity change from 0 to 8192 [ 77.427341][ T5064] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.440448][ T5064] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 77.449964][ T5064] REISERFS (device loop0): using ordered data mode [ 77.456558][ T5064] reiserfs: using flush barriers [pid 5064] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5064] chdir("./file0") = 0 [pid 5064] ioctl(4, LOOP_CLR_FD) = 0 [pid 5064] close(4) = 0 [pid 5064] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5064] mount(NULL, ".", 0x200000c0, 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 5064] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5064] chdir(".") = 0 [pid 5064] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5064] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5064] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5064] close(3) = 0 [pid 5064] close(4) = 0 [pid 5064] close(5) = 0 [pid 5064] close(6) = -1 EBADF (Bad file descriptor) [pid 5064] close(7) = -1 EBADF (Bad file descriptor) [pid 5064] close(8) = -1 EBADF (Bad file descriptor) [pid 5064] close(9) = -1 EBADF (Bad file descriptor) [pid 5064] close(10) = -1 EBADF (Bad file descriptor) [pid 5064] close(11) = -1 EBADF (Bad file descriptor) [pid 5064] close(12) = -1 EBADF (Bad file descriptor) [pid 5064] close(13) = -1 EBADF (Bad file descriptor) [pid 5064] close(14) = -1 EBADF (Bad file descriptor) [pid 5064] close(15) = -1 EBADF (Bad file descriptor) [pid 5064] close(16) = -1 EBADF (Bad file descriptor) [ 77.462946][ T5064] 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 [ 77.479714][ T5064] REISERFS (device loop0): checking transaction log (loop0) [ 77.488102][ T5064] REISERFS (device loop0): Using r5 hash to sort names [ 77.498258][ T5064] reiserfs: enabling write barrier flush mode [ 77.507898][ T5064] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5064] close(17) = -1 EBADF (Bad file descriptor) [pid 5064] close(18) = -1 EBADF (Bad file descriptor) [pid 5064] close(19) = -1 EBADF (Bad file descriptor) [pid 5064] close(20) = -1 EBADF (Bad file descriptor) [pid 5064] close(21) = -1 EBADF (Bad file descriptor) [pid 5064] close(22) = -1 EBADF (Bad file descriptor) [pid 5064] close(23) = -1 EBADF (Bad file descriptor) [pid 5064] close(24) = -1 EBADF (Bad file descriptor) [pid 5064] close(25) = -1 EBADF (Bad file descriptor) [pid 5064] close(26) = -1 EBADF (Bad file descriptor) [pid 5064] close(27) = -1 EBADF (Bad file descriptor) [pid 5064] close(28) = -1 EBADF (Bad file descriptor) [pid 5064] close(29) = -1 EBADF (Bad file descriptor) [pid 5064] exit_group(0) = ? [pid 5064] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./11/binderfs") = 0 [pid 5039] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./11/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./11") = 0 [pid 5039] mkdir("./12", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 14 ./strace-static-x86_64: Process 5066 attached [pid 5066] set_robust_list(0x555555e46660, 24) = 0 [pid 5066] chdir("./12") = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] setpgid(0, 0) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] write(3, "1000", 4) = 4 [pid 5066] close(3) = 0 [pid 5066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5066] memfd_create("syzkaller", 0) = 3 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5066] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5066] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5066] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5066] close(3) = 0 [pid 5066] mkdir("./file0", 0777) = 0 [ 77.667511][ T5066] loop0: detected capacity change from 0 to 8192 [ 77.678825][ T5066] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.692016][ T5066] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 77.701561][ T5066] REISERFS (device loop0): using ordered data mode [ 77.708337][ T5066] reiserfs: using flush barriers [pid 5066] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5066] chdir("./file0") = 0 [pid 5066] ioctl(4, LOOP_CLR_FD) = 0 [pid 5066] close(4) = 0 [pid 5066] mkdir(".", 0777) = -1 EEXIST (File exists) [ 77.714722][ T5066] 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 [ 77.731895][ T5066] REISERFS (device loop0): checking transaction log (loop0) [ 77.740157][ T5066] REISERFS (device loop0): Using r5 hash to sort names [ 77.756290][ T5066] reiserfs: enabling write barrier flush mode [pid 5066] mount(NULL, ".", 0x200000c0, 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 5066] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5066] chdir(".") = 0 [pid 5066] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5066] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5066] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5066] close(3) = 0 [pid 5066] close(4) = 0 [pid 5066] close(5) = 0 [pid 5066] close(6) = -1 EBADF (Bad file descriptor) [pid 5066] close(7) = -1 EBADF (Bad file descriptor) [pid 5066] close(8) = -1 EBADF (Bad file descriptor) [pid 5066] close(9) = -1 EBADF (Bad file descriptor) [pid 5066] close(10) = -1 EBADF (Bad file descriptor) [pid 5066] close(11) = -1 EBADF (Bad file descriptor) [pid 5066] close(12) = -1 EBADF (Bad file descriptor) [pid 5066] close(13) = -1 EBADF (Bad file descriptor) [pid 5066] close(14) = -1 EBADF (Bad file descriptor) [pid 5066] close(15) = -1 EBADF (Bad file descriptor) [pid 5066] close(16) = -1 EBADF (Bad file descriptor) [pid 5066] close(17) = -1 EBADF (Bad file descriptor) [pid 5066] close(18) = -1 EBADF (Bad file descriptor) [pid 5066] close(19) = -1 EBADF (Bad file descriptor) [pid 5066] close(20) = -1 EBADF (Bad file descriptor) [pid 5066] close(21) = -1 EBADF (Bad file descriptor) [pid 5066] close(22) = -1 EBADF (Bad file descriptor) [pid 5066] close(23) = -1 EBADF (Bad file descriptor) [pid 5066] close(24) = -1 EBADF (Bad file descriptor) [pid 5066] close(25) = -1 EBADF (Bad file descriptor) [pid 5066] close(26) = -1 EBADF (Bad file descriptor) [pid 5066] close(27) = -1 EBADF (Bad file descriptor) [pid 5066] close(28) = -1 EBADF (Bad file descriptor) [pid 5066] close(29) = -1 EBADF (Bad file descriptor) [pid 5066] exit_group(0) = ? [pid 5066] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./12/binderfs") = 0 [ 77.766509][ T5066] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./12/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./12") = 0 [pid 5039] mkdir("./13", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5068 attached [pid 5068] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 15 [pid 5068] <... set_robust_list resumed>) = 0 [pid 5068] chdir("./13") = 0 [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] setpgid(0, 0) = 0 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1000", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5068] memfd_create("syzkaller", 0) = 3 [pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5068] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5068] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5068] close(3) = 0 [pid 5068] mkdir("./file0", 0777) = 0 [ 77.947028][ T5068] loop0: detected capacity change from 0 to 8192 [ 77.958553][ T5068] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 77.971671][ T5068] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 77.981005][ T5068] REISERFS (device loop0): using ordered data mode [ 77.987591][ T5068] reiserfs: using flush barriers [pid 5068] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5068] chdir("./file0") = 0 [pid 5068] ioctl(4, LOOP_CLR_FD) = 0 [pid 5068] close(4) = 0 [pid 5068] mkdir(".", 0777) = -1 EEXIST (File exists) [ 77.993945][ T5068] 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 [ 78.010640][ T5068] REISERFS (device loop0): checking transaction log (loop0) [ 78.018960][ T5068] REISERFS (device loop0): Using r5 hash to sort names [ 78.029890][ T5068] reiserfs: enabling write barrier flush mode [pid 5068] mount(NULL, ".", 0x200000c0, 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 5068] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5068] chdir(".") = 0 [pid 5068] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5068] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5068] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5068] close(3) = 0 [pid 5068] close(4) = 0 [pid 5068] close(5) = 0 [pid 5068] close(6) = -1 EBADF (Bad file descriptor) [pid 5068] close(7) = -1 EBADF (Bad file descriptor) [pid 5068] close(8) = -1 EBADF (Bad file descriptor) [pid 5068] close(9) = -1 EBADF (Bad file descriptor) [pid 5068] close(10) = -1 EBADF (Bad file descriptor) [pid 5068] close(11) = -1 EBADF (Bad file descriptor) [pid 5068] close(12) = -1 EBADF (Bad file descriptor) [pid 5068] close(13) = -1 EBADF (Bad file descriptor) [pid 5068] close(14) = -1 EBADF (Bad file descriptor) [pid 5068] close(15) = -1 EBADF (Bad file descriptor) [pid 5068] close(16) = -1 EBADF (Bad file descriptor) [pid 5068] close(17) = -1 EBADF (Bad file descriptor) [pid 5068] close(18) = -1 EBADF (Bad file descriptor) [pid 5068] close(19) = -1 EBADF (Bad file descriptor) [pid 5068] close(20) = -1 EBADF (Bad file descriptor) [pid 5068] close(21) = -1 EBADF (Bad file descriptor) [pid 5068] close(22) = -1 EBADF (Bad file descriptor) [pid 5068] close(23) = -1 EBADF (Bad file descriptor) [pid 5068] close(24) = -1 EBADF (Bad file descriptor) [pid 5068] close(25) = -1 EBADF (Bad file descriptor) [pid 5068] close(26) = -1 EBADF (Bad file descriptor) [pid 5068] close(27) = -1 EBADF (Bad file descriptor) [pid 5068] close(28) = -1 EBADF (Bad file descriptor) [pid 5068] close(29) = -1 EBADF (Bad file descriptor) [pid 5068] exit_group(0) = ? [pid 5068] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./13/binderfs") = 0 [ 78.040722][ T5068] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./13/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./13") = 0 [pid 5039] mkdir("./14", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached [pid 5070] set_robust_list(0x555555e46660, 24) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 16 [pid 5070] chdir("./14") = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] setpgid(0, 0) = 0 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1000", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5070] memfd_create("syzkaller", 0) = 3 [pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5070] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5070] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5070] close(3) = 0 [pid 5070] mkdir("./file0", 0777) = 0 [ 78.218775][ T5070] loop0: detected capacity change from 0 to 8192 [ 78.229608][ T5070] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 78.242683][ T5070] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 78.252042][ T5070] REISERFS (device loop0): using ordered data mode [ 78.258716][ T5070] reiserfs: using flush barriers [pid 5070] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5070] chdir("./file0") = 0 [pid 5070] ioctl(4, LOOP_CLR_FD) = 0 [pid 5070] close(4) = 0 [pid 5070] mkdir(".", 0777) = -1 EEXIST (File exists) [ 78.265114][ T5070] 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 [ 78.281788][ T5070] REISERFS (device loop0): checking transaction log (loop0) [ 78.290431][ T5070] REISERFS (device loop0): Using r5 hash to sort names [ 78.301260][ T5070] reiserfs: enabling write barrier flush mode [pid 5070] mount(NULL, ".", 0x200000c0, 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 5070] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5070] chdir(".") = 0 [pid 5070] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5070] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5070] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5070] close(3) = 0 [pid 5070] close(4) = 0 [pid 5070] close(5) = 0 [pid 5070] close(6) = -1 EBADF (Bad file descriptor) [pid 5070] close(7) = -1 EBADF (Bad file descriptor) [pid 5070] close(8) = -1 EBADF (Bad file descriptor) [pid 5070] close(9) = -1 EBADF (Bad file descriptor) [pid 5070] close(10) = -1 EBADF (Bad file descriptor) [pid 5070] close(11) = -1 EBADF (Bad file descriptor) [pid 5070] close(12) = -1 EBADF (Bad file descriptor) [pid 5070] close(13) = -1 EBADF (Bad file descriptor) [pid 5070] close(14) = -1 EBADF (Bad file descriptor) [pid 5070] close(15) = -1 EBADF (Bad file descriptor) [pid 5070] close(16) = -1 EBADF (Bad file descriptor) [pid 5070] close(17) = -1 EBADF (Bad file descriptor) [pid 5070] close(18) = -1 EBADF (Bad file descriptor) [pid 5070] close(19) = -1 EBADF (Bad file descriptor) [pid 5070] close(20) = -1 EBADF (Bad file descriptor) [pid 5070] close(21) = -1 EBADF (Bad file descriptor) [pid 5070] close(22) = -1 EBADF (Bad file descriptor) [pid 5070] close(23) = -1 EBADF (Bad file descriptor) [pid 5070] close(24) = -1 EBADF (Bad file descriptor) [pid 5070] close(25) = -1 EBADF (Bad file descriptor) [pid 5070] close(26) = -1 EBADF (Bad file descriptor) [pid 5070] close(27) = -1 EBADF (Bad file descriptor) [pid 5070] close(28) = -1 EBADF (Bad file descriptor) [pid 5070] close(29) = -1 EBADF (Bad file descriptor) [pid 5070] exit_group(0) = ? [pid 5070] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./14/binderfs") = 0 [ 78.310768][ T5070] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./14/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./14") = 0 [pid 5039] mkdir("./15", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 17 ./strace-static-x86_64: Process 5072 attached [pid 5072] set_robust_list(0x555555e46660, 24) = 0 [pid 5072] chdir("./15") = 0 [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setpgid(0, 0) = 0 [pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1000", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5072] memfd_create("syzkaller", 0) = 3 [pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5072] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5072] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5072] close(3) = 0 [pid 5072] mkdir("./file0", 0777) = 0 [ 78.485526][ T5072] loop0: detected capacity change from 0 to 8192 [ 78.496033][ T5072] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 78.509346][ T5072] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 78.518996][ T5072] REISERFS (device loop0): using ordered data mode [ 78.525772][ T5072] reiserfs: using flush barriers [pid 5072] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5072] chdir("./file0") = 0 [pid 5072] ioctl(4, LOOP_CLR_FD) = 0 [pid 5072] close(4) = 0 [pid 5072] mkdir(".", 0777) = -1 EEXIST (File exists) [ 78.532187][ T5072] 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 [ 78.549106][ T5072] REISERFS (device loop0): checking transaction log (loop0) [ 78.557692][ T5072] REISERFS (device loop0): Using r5 hash to sort names [pid 5072] mount(NULL, ".", 0x200000c0, 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 5072] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5072] chdir(".") = 0 [pid 5072] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5072] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5072] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5072] close(3) = 0 [pid 5072] close(4) = 0 [pid 5072] close(5) = 0 [pid 5072] close(6) = -1 EBADF (Bad file descriptor) [pid 5072] close(7) = -1 EBADF (Bad file descriptor) [pid 5072] close(8) = -1 EBADF (Bad file descriptor) [pid 5072] close(9) = -1 EBADF (Bad file descriptor) [pid 5072] close(10) = -1 EBADF (Bad file descriptor) [pid 5072] close(11) = -1 EBADF (Bad file descriptor) [pid 5072] close(12) = -1 EBADF (Bad file descriptor) [pid 5072] close(13) = -1 EBADF (Bad file descriptor) [pid 5072] close(14) = -1 EBADF (Bad file descriptor) [pid 5072] close(15) = -1 EBADF (Bad file descriptor) [pid 5072] close(16) = -1 EBADF (Bad file descriptor) [pid 5072] close(17) = -1 EBADF (Bad file descriptor) [pid 5072] close(18) = -1 EBADF (Bad file descriptor) [pid 5072] close(19) = -1 EBADF (Bad file descriptor) [pid 5072] close(20) = -1 EBADF (Bad file descriptor) [pid 5072] close(21) = -1 EBADF (Bad file descriptor) [pid 5072] close(22) = -1 EBADF (Bad file descriptor) [pid 5072] close(23) = -1 EBADF (Bad file descriptor) [pid 5072] close(24) = -1 EBADF (Bad file descriptor) [pid 5072] close(25) = -1 EBADF (Bad file descriptor) [pid 5072] close(26) = -1 EBADF (Bad file descriptor) [pid 5072] close(27) = -1 EBADF (Bad file descriptor) [pid 5072] close(28) = -1 EBADF (Bad file descriptor) [pid 5072] close(29) = -1 EBADF (Bad file descriptor) [pid 5072] exit_group(0) = ? [pid 5072] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./15/binderfs") = 0 [ 78.582706][ T5072] reiserfs: enabling write barrier flush mode [ 78.593584][ T5072] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./15/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./15") = 0 [pid 5039] mkdir("./16", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5074 attached , child_tidptr=0x555555e46650) = 18 [pid 5074] set_robust_list(0x555555e46660, 24) = 0 [pid 5074] chdir("./16") = 0 [pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] setpgid(0, 0) = 0 [pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] write(3, "1000", 4) = 4 [pid 5074] close(3) = 0 [pid 5074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5074] memfd_create("syzkaller", 0) = 3 [pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5074] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5074] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5074] close(3) = 0 [pid 5074] mkdir("./file0", 0777) = 0 [ 78.767730][ T5074] loop0: detected capacity change from 0 to 8192 [ 78.778272][ T5074] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 78.791432][ T5074] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 78.800979][ T5074] REISERFS (device loop0): using ordered data mode [ 78.807603][ T5074] reiserfs: using flush barriers [pid 5074] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5074] chdir("./file0") = 0 [pid 5074] ioctl(4, LOOP_CLR_FD) = 0 [pid 5074] close(4) = 0 [pid 5074] mkdir(".", 0777) = -1 EEXIST (File exists) [ 78.814070][ T5074] 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 [ 78.830735][ T5074] REISERFS (device loop0): checking transaction log (loop0) [ 78.839316][ T5074] REISERFS (device loop0): Using r5 hash to sort names [pid 5074] mount(NULL, ".", 0x200000c0, 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 5074] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5074] chdir(".") = 0 [pid 5074] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5074] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5074] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5074] close(3) = 0 [pid 5074] close(4) = 0 [pid 5074] close(5) = 0 [pid 5074] close(6) = -1 EBADF (Bad file descriptor) [pid 5074] close(7) = -1 EBADF (Bad file descriptor) [pid 5074] close(8) = -1 EBADF (Bad file descriptor) [pid 5074] close(9) = -1 EBADF (Bad file descriptor) [pid 5074] close(10) = -1 EBADF (Bad file descriptor) [pid 5074] close(11) = -1 EBADF (Bad file descriptor) [pid 5074] close(12) = -1 EBADF (Bad file descriptor) [pid 5074] close(13) = -1 EBADF (Bad file descriptor) [pid 5074] close(14) = -1 EBADF (Bad file descriptor) [pid 5074] close(15) = -1 EBADF (Bad file descriptor) [pid 5074] close(16) = -1 EBADF (Bad file descriptor) [pid 5074] close(17) = -1 EBADF (Bad file descriptor) [pid 5074] close(18) = -1 EBADF (Bad file descriptor) [pid 5074] close(19) = -1 EBADF (Bad file descriptor) [pid 5074] close(20) = -1 EBADF (Bad file descriptor) [pid 5074] close(21) = -1 EBADF (Bad file descriptor) [pid 5074] close(22) = -1 EBADF (Bad file descriptor) [pid 5074] close(23) = -1 EBADF (Bad file descriptor) [pid 5074] close(24) = -1 EBADF (Bad file descriptor) [pid 5074] close(25) = -1 EBADF (Bad file descriptor) [pid 5074] close(26) = -1 EBADF (Bad file descriptor) [pid 5074] close(27) = -1 EBADF (Bad file descriptor) [pid 5074] close(28) = -1 EBADF (Bad file descriptor) [pid 5074] close(29) = -1 EBADF (Bad file descriptor) [pid 5074] exit_group(0) = ? [pid 5074] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./16/binderfs") = 0 [ 78.864255][ T5074] reiserfs: enabling write barrier flush mode [ 78.874974][ T5074] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./16/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./16") = 0 [pid 5039] mkdir("./17", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5076 attached [pid 5076] set_robust_list(0x555555e46660, 24) = 0 [pid 5076] chdir("./17") = 0 [pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5076] setpgid(0, 0) = 0 [pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 19 [pid 5076] <... openat resumed>) = 3 [pid 5076] write(3, "1000", 4) = 4 [pid 5076] close(3) = 0 [pid 5076] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5076] memfd_create("syzkaller", 0) = 3 [pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5076] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5076] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5076] close(3) = 0 [pid 5076] mkdir("./file0", 0777) = 0 [ 79.068091][ T5076] loop0: detected capacity change from 0 to 8192 [ 79.081068][ T5076] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.094139][ T5076] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 79.103496][ T5076] REISERFS (device loop0): using ordered data mode [ 79.110118][ T5076] reiserfs: using flush barriers [pid 5076] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5076] chdir("./file0") = 0 [pid 5076] ioctl(4, LOOP_CLR_FD) = 0 [pid 5076] close(4) = 0 [pid 5076] mkdir(".", 0777) = -1 EEXIST (File exists) [ 79.116653][ T5076] 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 [ 79.133291][ T5076] REISERFS (device loop0): checking transaction log (loop0) [ 79.141989][ T5076] REISERFS (device loop0): Using r5 hash to sort names [ 79.153965][ T5076] reiserfs: enabling write barrier flush mode [pid 5076] mount(NULL, ".", 0x200000c0, 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 5076] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5076] chdir(".") = 0 [pid 5076] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5076] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5076] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5076] close(3) = 0 [pid 5076] close(4) = 0 [pid 5076] close(5) = 0 [pid 5076] close(6) = -1 EBADF (Bad file descriptor) [pid 5076] close(7) = -1 EBADF (Bad file descriptor) [pid 5076] close(8) = -1 EBADF (Bad file descriptor) [pid 5076] close(9) = -1 EBADF (Bad file descriptor) [pid 5076] close(10) = -1 EBADF (Bad file descriptor) [pid 5076] close(11) = -1 EBADF (Bad file descriptor) [pid 5076] close(12) = -1 EBADF (Bad file descriptor) [pid 5076] close(13) = -1 EBADF (Bad file descriptor) [pid 5076] close(14) = -1 EBADF (Bad file descriptor) [pid 5076] close(15) = -1 EBADF (Bad file descriptor) [pid 5076] close(16) = -1 EBADF (Bad file descriptor) [pid 5076] close(17) = -1 EBADF (Bad file descriptor) [pid 5076] close(18) = -1 EBADF (Bad file descriptor) [pid 5076] close(19) = -1 EBADF (Bad file descriptor) [pid 5076] close(20) = -1 EBADF (Bad file descriptor) [pid 5076] close(21) = -1 EBADF (Bad file descriptor) [pid 5076] close(22) = -1 EBADF (Bad file descriptor) [pid 5076] close(23) = -1 EBADF (Bad file descriptor) [pid 5076] close(24) = -1 EBADF (Bad file descriptor) [pid 5076] close(25) = -1 EBADF (Bad file descriptor) [pid 5076] close(26) = -1 EBADF (Bad file descriptor) [pid 5076] close(27) = -1 EBADF (Bad file descriptor) [pid 5076] close(28) = -1 EBADF (Bad file descriptor) [pid 5076] close(29) = -1 EBADF (Bad file descriptor) [pid 5076] exit_group(0) = ? [pid 5076] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 79.163909][ T5076] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./17/binderfs") = 0 [pid 5039] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./17/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./17") = 0 [pid 5039] mkdir("./18", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5078 attached [pid 5078] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 20 [pid 5078] <... set_robust_list resumed>) = 0 [pid 5078] chdir("./18") = 0 [pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5078] setpgid(0, 0) = 0 [pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5078] write(3, "1000", 4) = 4 [pid 5078] close(3) = 0 [pid 5078] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5078] memfd_create("syzkaller", 0) = 3 [pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5078] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5078] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5078] close(3) = 0 [pid 5078] mkdir("./file0", 0777) = 0 [ 79.346222][ T5078] loop0: detected capacity change from 0 to 8192 [ 79.358152][ T5078] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.371404][ T5078] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 79.380715][ T5078] REISERFS (device loop0): using ordered data mode [ 79.387321][ T5078] reiserfs: using flush barriers [pid 5078] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5078] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5078] chdir("./file0") = 0 [pid 5078] ioctl(4, LOOP_CLR_FD) = 0 [pid 5078] close(4) = 0 [pid 5078] mkdir(".", 0777) = -1 EEXIST (File exists) [ 79.393731][ T5078] 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 [ 79.410729][ T5078] REISERFS (device loop0): checking transaction log (loop0) [ 79.418985][ T5078] REISERFS (device loop0): Using r5 hash to sort names [ 79.436640][ T5078] reiserfs: enabling write barrier flush mode [pid 5078] mount(NULL, ".", 0x200000c0, 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 5078] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5078] chdir(".") = 0 [pid 5078] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5078] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5078] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5078] close(3) = 0 [pid 5078] close(4) = 0 [pid 5078] close(5) = 0 [pid 5078] close(6) = -1 EBADF (Bad file descriptor) [pid 5078] close(7) = -1 EBADF (Bad file descriptor) [pid 5078] close(8) = -1 EBADF (Bad file descriptor) [pid 5078] close(9) = -1 EBADF (Bad file descriptor) [pid 5078] close(10) = -1 EBADF (Bad file descriptor) [pid 5078] close(11) = -1 EBADF (Bad file descriptor) [pid 5078] close(12) = -1 EBADF (Bad file descriptor) [pid 5078] close(13) = -1 EBADF (Bad file descriptor) [pid 5078] close(14) = -1 EBADF (Bad file descriptor) [pid 5078] close(15) = -1 EBADF (Bad file descriptor) [pid 5078] close(16) = -1 EBADF (Bad file descriptor) [pid 5078] close(17) = -1 EBADF (Bad file descriptor) [pid 5078] close(18) = -1 EBADF (Bad file descriptor) [pid 5078] close(19) = -1 EBADF (Bad file descriptor) [pid 5078] close(20) = -1 EBADF (Bad file descriptor) [pid 5078] close(21) = -1 EBADF (Bad file descriptor) [pid 5078] close(22) = -1 EBADF (Bad file descriptor) [pid 5078] close(23) = -1 EBADF (Bad file descriptor) [pid 5078] close(24) = -1 EBADF (Bad file descriptor) [pid 5078] close(25) = -1 EBADF (Bad file descriptor) [pid 5078] close(26) = -1 EBADF (Bad file descriptor) [pid 5078] close(27) = -1 EBADF (Bad file descriptor) [pid 5078] close(28) = -1 EBADF (Bad file descriptor) [pid 5078] close(29) = -1 EBADF (Bad file descriptor) [pid 5078] exit_group(0) = ? [pid 5078] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./18/binderfs") = 0 [ 79.454139][ T5078] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./18/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./18") = 0 [pid 5039] mkdir("./19", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 21 ./strace-static-x86_64: Process 5080 attached [pid 5080] set_robust_list(0x555555e46660, 24) = 0 [pid 5080] chdir("./19") = 0 [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setpgid(0, 0) = 0 [pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1000", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5080] memfd_create("syzkaller", 0) = 3 [pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5080] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5080] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5080] close(3) = 0 [pid 5080] mkdir("./file0", 0777) = 0 [ 79.641206][ T5080] loop0: detected capacity change from 0 to 8192 [ 79.652384][ T5080] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.665504][ T5080] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 79.674814][ T5080] REISERFS (device loop0): using ordered data mode [ 79.681407][ T5080] reiserfs: using flush barriers [pid 5080] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5080] chdir("./file0") = 0 [pid 5080] ioctl(4, LOOP_CLR_FD) = 0 [pid 5080] close(4) = 0 [pid 5080] mkdir(".", 0777) = -1 EEXIST (File exists) [ 79.688018][ T5080] 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 [ 79.704576][ T5080] REISERFS (device loop0): checking transaction log (loop0) [ 79.713137][ T5080] REISERFS (device loop0): Using r5 hash to sort names [ 79.732112][ T5080] reiserfs: enabling write barrier flush mode [pid 5080] mount(NULL, ".", 0x200000c0, 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 5080] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5080] chdir(".") = 0 [pid 5080] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5080] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5080] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5080] close(3) = 0 [pid 5080] close(4) = 0 [pid 5080] close(5) = 0 [pid 5080] close(6) = -1 EBADF (Bad file descriptor) [pid 5080] close(7) = -1 EBADF (Bad file descriptor) [pid 5080] close(8) = -1 EBADF (Bad file descriptor) [pid 5080] close(9) = -1 EBADF (Bad file descriptor) [pid 5080] close(10) = -1 EBADF (Bad file descriptor) [pid 5080] close(11) = -1 EBADF (Bad file descriptor) [pid 5080] close(12) = -1 EBADF (Bad file descriptor) [pid 5080] close(13) = -1 EBADF (Bad file descriptor) [pid 5080] close(14) = -1 EBADF (Bad file descriptor) [pid 5080] close(15) = -1 EBADF (Bad file descriptor) [pid 5080] close(16) = -1 EBADF (Bad file descriptor) [pid 5080] close(17) = -1 EBADF (Bad file descriptor) [pid 5080] close(18) = -1 EBADF (Bad file descriptor) [pid 5080] close(19) = -1 EBADF (Bad file descriptor) [pid 5080] close(20) = -1 EBADF (Bad file descriptor) [pid 5080] close(21) = -1 EBADF (Bad file descriptor) [pid 5080] close(22) = -1 EBADF (Bad file descriptor) [pid 5080] close(23) = -1 EBADF (Bad file descriptor) [pid 5080] close(24) = -1 EBADF (Bad file descriptor) [pid 5080] close(25) = -1 EBADF (Bad file descriptor) [pid 5080] close(26) = -1 EBADF (Bad file descriptor) [pid 5080] close(27) = -1 EBADF (Bad file descriptor) [pid 5080] close(28) = -1 EBADF (Bad file descriptor) [pid 5080] close(29) = -1 EBADF (Bad file descriptor) [pid 5080] exit_group(0) = ? [pid 5080] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./19/binderfs") = 0 [ 79.742108][ T5080] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./19/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./19") = 0 [pid 5039] mkdir("./20", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5082 attached , child_tidptr=0x555555e46650) = 22 [pid 5082] set_robust_list(0x555555e46660, 24) = 0 [pid 5082] chdir("./20") = 0 [pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5082] setpgid(0, 0) = 0 [pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5082] write(3, "1000", 4) = 4 [pid 5082] close(3) = 0 [pid 5082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5082] memfd_create("syzkaller", 0) = 3 [pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5082] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5082] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5082] close(3) = 0 [pid 5082] mkdir("./file0", 0777) = 0 [ 79.910485][ T5082] loop0: detected capacity change from 0 to 8192 [ 79.921464][ T5082] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 79.935326][ T5082] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 79.944619][ T5082] REISERFS (device loop0): using ordered data mode [ 79.951499][ T5082] reiserfs: using flush barriers [pid 5082] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5082] chdir("./file0") = 0 [pid 5082] ioctl(4, LOOP_CLR_FD) = 0 [pid 5082] close(4) = 0 [pid 5082] mkdir(".", 0777) = -1 EEXIST (File exists) [ 79.958183][ T5082] 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 [ 79.974986][ T5082] REISERFS (device loop0): checking transaction log (loop0) [ 79.983318][ T5082] REISERFS (device loop0): Using r5 hash to sort names [ 79.994452][ T5082] reiserfs: enabling write barrier flush mode [pid 5082] mount(NULL, ".", 0x200000c0, 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 5082] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5082] chdir(".") = 0 [pid 5082] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5082] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5082] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5082] close(3) = 0 [pid 5082] close(4) = 0 [pid 5082] close(5) = 0 [pid 5082] close(6) = -1 EBADF (Bad file descriptor) [pid 5082] close(7) = -1 EBADF (Bad file descriptor) [pid 5082] close(8) = -1 EBADF (Bad file descriptor) [pid 5082] close(9) = -1 EBADF (Bad file descriptor) [pid 5082] close(10) = -1 EBADF (Bad file descriptor) [pid 5082] close(11) = -1 EBADF (Bad file descriptor) [pid 5082] close(12) = -1 EBADF (Bad file descriptor) [pid 5082] close(13) = -1 EBADF (Bad file descriptor) [pid 5082] close(14) = -1 EBADF (Bad file descriptor) [pid 5082] close(15) = -1 EBADF (Bad file descriptor) [pid 5082] close(16) = -1 EBADF (Bad file descriptor) [pid 5082] close(17) = -1 EBADF (Bad file descriptor) [pid 5082] close(18) = -1 EBADF (Bad file descriptor) [pid 5082] close(19) = -1 EBADF (Bad file descriptor) [pid 5082] close(20) = -1 EBADF (Bad file descriptor) [pid 5082] close(21) = -1 EBADF (Bad file descriptor) [pid 5082] close(22) = -1 EBADF (Bad file descriptor) [pid 5082] close(23) = -1 EBADF (Bad file descriptor) [pid 5082] close(24) = -1 EBADF (Bad file descriptor) [pid 5082] close(25) = -1 EBADF (Bad file descriptor) [pid 5082] close(26) = -1 EBADF (Bad file descriptor) [pid 5082] close(27) = -1 EBADF (Bad file descriptor) [pid 5082] close(28) = -1 EBADF (Bad file descriptor) [pid 5082] close(29) = -1 EBADF (Bad file descriptor) [pid 5082] exit_group(0) = ? [pid 5082] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./20/binderfs") = 0 [ 80.005804][ T5082] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./20/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./20") = 0 [pid 5039] mkdir("./21", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x555555e46660, 24) = 0 [pid 5084] chdir("./21") = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 23 [pid 5084] <... openat resumed>) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5084] memfd_create("syzkaller", 0) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5084] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5084] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5084] close(3) = 0 [pid 5084] mkdir("./file0", 0777) = 0 [ 80.175648][ T5084] loop0: detected capacity change from 0 to 8192 [ 80.186347][ T5084] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.199428][ T5084] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 80.208811][ T5084] REISERFS (device loop0): using ordered data mode [ 80.215432][ T5084] reiserfs: using flush barriers [pid 5084] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5084] chdir("./file0") = 0 [pid 5084] ioctl(4, LOOP_CLR_FD) = 0 [pid 5084] close(4) = 0 [pid 5084] mkdir(".", 0777) = -1 EEXIST (File exists) [ 80.221779][ T5084] 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 [ 80.238608][ T5084] REISERFS (device loop0): checking transaction log (loop0) [ 80.246899][ T5084] REISERFS (device loop0): Using r5 hash to sort names [ 80.267035][ T5084] reiserfs: enabling write barrier flush mode [pid 5084] mount(NULL, ".", 0x200000c0, 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 5084] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5084] chdir(".") = 0 [pid 5084] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5084] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5084] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5084] close(3) = 0 [pid 5084] close(4) = 0 [pid 5084] close(5) = 0 [pid 5084] close(6) = -1 EBADF (Bad file descriptor) [pid 5084] close(7) = -1 EBADF (Bad file descriptor) [pid 5084] close(8) = -1 EBADF (Bad file descriptor) [pid 5084] close(9) = -1 EBADF (Bad file descriptor) [pid 5084] close(10) = -1 EBADF (Bad file descriptor) [pid 5084] close(11) = -1 EBADF (Bad file descriptor) [pid 5084] close(12) = -1 EBADF (Bad file descriptor) [pid 5084] close(13) = -1 EBADF (Bad file descriptor) [pid 5084] close(14) = -1 EBADF (Bad file descriptor) [pid 5084] close(15) = -1 EBADF (Bad file descriptor) [pid 5084] close(16) = -1 EBADF (Bad file descriptor) [pid 5084] close(17) = -1 EBADF (Bad file descriptor) [pid 5084] close(18) = -1 EBADF (Bad file descriptor) [pid 5084] close(19) = -1 EBADF (Bad file descriptor) [pid 5084] close(20) = -1 EBADF (Bad file descriptor) [pid 5084] close(21) = -1 EBADF (Bad file descriptor) [pid 5084] close(22) = -1 EBADF (Bad file descriptor) [pid 5084] close(23) = -1 EBADF (Bad file descriptor) [pid 5084] close(24) = -1 EBADF (Bad file descriptor) [pid 5084] close(25) = -1 EBADF (Bad file descriptor) [pid 5084] close(26) = -1 EBADF (Bad file descriptor) [pid 5084] close(27) = -1 EBADF (Bad file descriptor) [pid 5084] close(28) = -1 EBADF (Bad file descriptor) [pid 5084] close(29) = -1 EBADF (Bad file descriptor) [pid 5084] exit_group(0) = ? [pid 5084] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=23, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 80.278821][ T5084] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] unlink("./21/binderfs") = 0 [pid 5039] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./21/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./21") = 0 [pid 5039] mkdir("./22", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached , child_tidptr=0x555555e46650) = 24 [pid 5086] set_robust_list(0x555555e46660, 24) = 0 [pid 5086] chdir("./22") = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5086] memfd_create("syzkaller", 0) = 3 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5086] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5086] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5086] close(3) = 0 [pid 5086] mkdir("./file0", 0777) = 0 [ 80.476684][ T5086] loop0: detected capacity change from 0 to 8192 [ 80.487670][ T5086] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.500733][ T5086] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 80.510113][ T5086] REISERFS (device loop0): using ordered data mode [ 80.516848][ T5086] reiserfs: using flush barriers [pid 5086] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5086] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5086] chdir("./file0") = 0 [pid 5086] ioctl(4, LOOP_CLR_FD) = 0 [pid 5086] close(4) = 0 [pid 5086] mkdir(".", 0777) = -1 EEXIST (File exists) [ 80.523321][ T5086] 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 [ 80.540410][ T5086] REISERFS (device loop0): checking transaction log (loop0) [ 80.548868][ T5086] REISERFS (device loop0): Using r5 hash to sort names [ 80.561366][ T5086] reiserfs: enabling write barrier flush mode [pid 5086] mount(NULL, ".", 0x200000c0, 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 5086] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5086] chdir(".") = 0 [pid 5086] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5086] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5086] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5086] close(3) = 0 [pid 5086] close(4) = 0 [pid 5086] close(5) = 0 [pid 5086] close(6) = -1 EBADF (Bad file descriptor) [pid 5086] close(7) = -1 EBADF (Bad file descriptor) [pid 5086] close(8) = -1 EBADF (Bad file descriptor) [pid 5086] close(9) = -1 EBADF (Bad file descriptor) [pid 5086] close(10) = -1 EBADF (Bad file descriptor) [pid 5086] close(11) = -1 EBADF (Bad file descriptor) [pid 5086] close(12) = -1 EBADF (Bad file descriptor) [pid 5086] close(13) = -1 EBADF (Bad file descriptor) [pid 5086] close(14) = -1 EBADF (Bad file descriptor) [pid 5086] close(15) = -1 EBADF (Bad file descriptor) [pid 5086] close(16) = -1 EBADF (Bad file descriptor) [pid 5086] close(17) = -1 EBADF (Bad file descriptor) [pid 5086] close(18) = -1 EBADF (Bad file descriptor) [pid 5086] close(19) = -1 EBADF (Bad file descriptor) [pid 5086] close(20) = -1 EBADF (Bad file descriptor) [pid 5086] close(21) = -1 EBADF (Bad file descriptor) [pid 5086] close(22) = -1 EBADF (Bad file descriptor) [pid 5086] close(23) = -1 EBADF (Bad file descriptor) [pid 5086] close(24) = -1 EBADF (Bad file descriptor) [pid 5086] close(25) = -1 EBADF (Bad file descriptor) [pid 5086] close(26) = -1 EBADF (Bad file descriptor) [pid 5086] close(27) = -1 EBADF (Bad file descriptor) [pid 5086] close(28) = -1 EBADF (Bad file descriptor) [pid 5086] close(29) = -1 EBADF (Bad file descriptor) [pid 5086] exit_group(0) = ? [pid 5086] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=24, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./22/binderfs") = 0 [ 80.571281][ T5086] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./22/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./22") = 0 [pid 5039] mkdir("./23", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5088 attached , child_tidptr=0x555555e46650) = 25 [pid 5088] set_robust_list(0x555555e46660, 24) = 0 [pid 5088] chdir("./23") = 0 [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setpgid(0, 0) = 0 [pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1000", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5088] memfd_create("syzkaller", 0) = 3 [pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5088] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5088] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5088] close(3) = 0 [pid 5088] mkdir("./file0", 0777) = 0 [ 80.742591][ T5088] loop0: detected capacity change from 0 to 8192 [ 80.754199][ T5088] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 80.767259][ T5088] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 80.776518][ T5088] REISERFS (device loop0): using ordered data mode [ 80.783035][ T5088] reiserfs: using flush barriers [pid 5088] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5088] chdir("./file0") = 0 [pid 5088] ioctl(4, LOOP_CLR_FD) = 0 [pid 5088] close(4) = 0 [pid 5088] mkdir(".", 0777) = -1 EEXIST (File exists) [ 80.789579][ T5088] 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 [ 80.806285][ T5088] REISERFS (device loop0): checking transaction log (loop0) [ 80.814578][ T5088] REISERFS (device loop0): Using r5 hash to sort names [ 80.836343][ T5088] reiserfs: enabling write barrier flush mode [pid 5088] mount(NULL, ".", 0x200000c0, 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 5088] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5088] chdir(".") = 0 [pid 5088] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5088] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5088] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5088] close(3) = 0 [pid 5088] close(4) = 0 [pid 5088] close(5) = 0 [pid 5088] close(6) = -1 EBADF (Bad file descriptor) [pid 5088] close(7) = -1 EBADF (Bad file descriptor) [pid 5088] close(8) = -1 EBADF (Bad file descriptor) [pid 5088] close(9) = -1 EBADF (Bad file descriptor) [pid 5088] close(10) = -1 EBADF (Bad file descriptor) [pid 5088] close(11) = -1 EBADF (Bad file descriptor) [pid 5088] close(12) = -1 EBADF (Bad file descriptor) [pid 5088] close(13) = -1 EBADF (Bad file descriptor) [pid 5088] close(14) = -1 EBADF (Bad file descriptor) [pid 5088] close(15) = -1 EBADF (Bad file descriptor) [pid 5088] close(16) = -1 EBADF (Bad file descriptor) [pid 5088] close(17) = -1 EBADF (Bad file descriptor) [pid 5088] close(18) = -1 EBADF (Bad file descriptor) [pid 5088] close(19) = -1 EBADF (Bad file descriptor) [pid 5088] close(20) = -1 EBADF (Bad file descriptor) [pid 5088] close(21) = -1 EBADF (Bad file descriptor) [pid 5088] close(22) = -1 EBADF (Bad file descriptor) [pid 5088] close(23) = -1 EBADF (Bad file descriptor) [pid 5088] close(24) = -1 EBADF (Bad file descriptor) [pid 5088] close(25) = -1 EBADF (Bad file descriptor) [pid 5088] close(26) = -1 EBADF (Bad file descriptor) [pid 5088] close(27) = -1 EBADF (Bad file descriptor) [pid 5088] close(28) = -1 EBADF (Bad file descriptor) [pid 5088] close(29) = -1 EBADF (Bad file descriptor) [pid 5088] exit_group(0) = ? [pid 5088] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./23/binderfs") = 0 [ 80.847319][ T5088] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./23/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./23") = 0 [pid 5039] mkdir("./24", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5090 attached , child_tidptr=0x555555e46650) = 26 [pid 5090] set_robust_list(0x555555e46660, 24) = 0 [pid 5090] chdir("./24") = 0 [pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5090] setpgid(0, 0) = 0 [pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5090] write(3, "1000", 4) = 4 [pid 5090] close(3) = 0 [pid 5090] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5090] memfd_create("syzkaller", 0) = 3 [pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5090] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5090] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5090] close(3) = 0 [pid 5090] mkdir("./file0", 0777) = 0 [ 81.030809][ T5090] loop0: detected capacity change from 0 to 8192 [ 81.043335][ T5090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 81.056640][ T5090] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 81.065995][ T5090] REISERFS (device loop0): using ordered data mode [ 81.072513][ T5090] reiserfs: using flush barriers [pid 5090] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5090] chdir("./file0") = 0 [pid 5090] ioctl(4, LOOP_CLR_FD) = 0 [pid 5090] close(4) = 0 [pid 5090] mkdir(".", 0777) = -1 EEXIST (File exists) [ 81.078999][ T5090] 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 [ 81.095667][ T5090] REISERFS (device loop0): checking transaction log (loop0) [ 81.103819][ T5090] REISERFS (device loop0): Using r5 hash to sort names [pid 5090] mount(NULL, ".", 0x200000c0, 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 5090] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5090] chdir(".") = 0 [pid 5090] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5090] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5090] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5090] close(3) = 0 [pid 5090] close(4) = 0 [pid 5090] close(5) = 0 [pid 5090] close(6) = -1 EBADF (Bad file descriptor) [pid 5090] close(7) = -1 EBADF (Bad file descriptor) [pid 5090] close(8) = -1 EBADF (Bad file descriptor) [pid 5090] close(9) = -1 EBADF (Bad file descriptor) [pid 5090] close(10) = -1 EBADF (Bad file descriptor) [pid 5090] close(11) = -1 EBADF (Bad file descriptor) [pid 5090] close(12) = -1 EBADF (Bad file descriptor) [pid 5090] close(13) = -1 EBADF (Bad file descriptor) [pid 5090] close(14) = -1 EBADF (Bad file descriptor) [pid 5090] close(15) = -1 EBADF (Bad file descriptor) [pid 5090] close(16) = -1 EBADF (Bad file descriptor) [pid 5090] close(17) = -1 EBADF (Bad file descriptor) [pid 5090] close(18) = -1 EBADF (Bad file descriptor) [pid 5090] close(19) = -1 EBADF (Bad file descriptor) [pid 5090] close(20) = -1 EBADF (Bad file descriptor) [pid 5090] close(21) = -1 EBADF (Bad file descriptor) [pid 5090] close(22) = -1 EBADF (Bad file descriptor) [pid 5090] close(23) = -1 EBADF (Bad file descriptor) [pid 5090] close(24) = -1 EBADF (Bad file descriptor) [pid 5090] close(25) = -1 EBADF (Bad file descriptor) [pid 5090] close(26) = -1 EBADF (Bad file descriptor) [pid 5090] close(27) = -1 EBADF (Bad file descriptor) [pid 5090] close(28) = -1 EBADF (Bad file descriptor) [pid 5090] close(29) = -1 EBADF (Bad file descriptor) [pid 5090] exit_group(0) = ? [pid 5090] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=26, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./24/binderfs") = 0 [ 81.127884][ T5090] reiserfs: enabling write barrier flush mode [ 81.139894][ T5090] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./24/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./24") = 0 [pid 5039] mkdir("./25", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached , child_tidptr=0x555555e46650) = 27 [pid 5092] set_robust_list(0x555555e46660, 24) = 0 [pid 5092] chdir("./25") = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5092] memfd_create("syzkaller", 0) = 3 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5092] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5092] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5092] close(3) = 0 [pid 5092] mkdir("./file0", 0777) = 0 [ 81.385932][ T5092] loop0: detected capacity change from 0 to 8192 [ 81.413690][ T5092] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 81.427282][ T5092] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [pid 5092] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5092] chdir("./file0") = 0 [pid 5092] ioctl(4, LOOP_CLR_FD) = 0 [pid 5092] close(4) = 0 [pid 5092] mkdir(".", 0777) = -1 EEXIST (File exists) [ 81.437207][ T5092] REISERFS (device loop0): using ordered data mode [ 81.444103][ T5092] reiserfs: using flush barriers [ 81.451339][ T5092] 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 [ 81.468188][ T5092] REISERFS (device loop0): checking transaction log (loop0) [ 81.476904][ T5092] REISERFS (device loop0): Using r5 hash to sort names [pid 5092] mount(NULL, ".", 0x200000c0, 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 5092] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5092] chdir(".") = 0 [pid 5092] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5092] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5092] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5092] close(3) = 0 [pid 5092] close(4) = 0 [pid 5092] close(5) = 0 [pid 5092] close(6) = -1 EBADF (Bad file descriptor) [pid 5092] close(7) = -1 EBADF (Bad file descriptor) [pid 5092] close(8) = -1 EBADF (Bad file descriptor) [pid 5092] close(9) = -1 EBADF (Bad file descriptor) [pid 5092] close(10) = -1 EBADF (Bad file descriptor) [pid 5092] close(11) = -1 EBADF (Bad file descriptor) [pid 5092] close(12) = -1 EBADF (Bad file descriptor) [pid 5092] close(13) = -1 EBADF (Bad file descriptor) [pid 5092] close(14) = -1 EBADF (Bad file descriptor) [pid 5092] close(15) = -1 EBADF (Bad file descriptor) [pid 5092] close(16) = -1 EBADF (Bad file descriptor) [pid 5092] close(17) = -1 EBADF (Bad file descriptor) [pid 5092] close(18) = -1 EBADF (Bad file descriptor) [pid 5092] close(19) = -1 EBADF (Bad file descriptor) [pid 5092] close(20) = -1 EBADF (Bad file descriptor) [pid 5092] close(21) = -1 EBADF (Bad file descriptor) [pid 5092] close(22) = -1 EBADF (Bad file descriptor) [pid 5092] close(23) = -1 EBADF (Bad file descriptor) [pid 5092] close(24) = -1 EBADF (Bad file descriptor) [pid 5092] close(25) = -1 EBADF (Bad file descriptor) [pid 5092] close(26) = -1 EBADF (Bad file descriptor) [pid 5092] close(27) = -1 EBADF (Bad file descriptor) [pid 5092] close(28) = -1 EBADF (Bad file descriptor) [pid 5092] close(29) = -1 EBADF (Bad file descriptor) [pid 5092] exit_group(0) = ? [pid 5092] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./25/binderfs") = 0 [ 81.489565][ T5092] reiserfs: enabling write barrier flush mode [ 81.500611][ T5092] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./25/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./25") = 0 [pid 5039] mkdir("./26", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached , child_tidptr=0x555555e46650) = 28 [pid 5094] set_robust_list(0x555555e46660, 24) = 0 [pid 5094] chdir("./26") = 0 [pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5094] setpgid(0, 0) = 0 [pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5094] write(3, "1000", 4) = 4 [pid 5094] close(3) = 0 [pid 5094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5094] memfd_create("syzkaller", 0) = 3 [pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5094] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5094] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5094] close(3) = 0 [pid 5094] mkdir("./file0", 0777) = 0 [ 81.722729][ T5094] loop0: detected capacity change from 0 to 8192 [ 81.737727][ T5094] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 81.751205][ T5094] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 81.760974][ T5094] REISERFS (device loop0): using ordered data mode [ 81.768042][ T5094] reiserfs: using flush barriers [pid 5094] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5094] chdir("./file0") = 0 [pid 5094] ioctl(4, LOOP_CLR_FD) = 0 [pid 5094] close(4) = 0 [pid 5094] mkdir(".", 0777) = -1 EEXIST (File exists) [ 81.776570][ T5094] 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 [ 81.793440][ T5094] REISERFS (device loop0): checking transaction log (loop0) [ 81.802601][ T5094] REISERFS (device loop0): Using r5 hash to sort names [ 81.820793][ T5094] reiserfs: enabling write barrier flush mode [pid 5094] mount(NULL, ".", 0x200000c0, 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 5094] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5094] chdir(".") = 0 [pid 5094] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5094] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5094] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5094] close(3) = 0 [pid 5094] close(4) = 0 [pid 5094] close(5) = 0 [pid 5094] close(6) = -1 EBADF (Bad file descriptor) [pid 5094] close(7) = -1 EBADF (Bad file descriptor) [pid 5094] close(8) = -1 EBADF (Bad file descriptor) [pid 5094] close(9) = -1 EBADF (Bad file descriptor) [pid 5094] close(10) = -1 EBADF (Bad file descriptor) [pid 5094] close(11) = -1 EBADF (Bad file descriptor) [pid 5094] close(12) = -1 EBADF (Bad file descriptor) [pid 5094] close(13) = -1 EBADF (Bad file descriptor) [pid 5094] close(14) = -1 EBADF (Bad file descriptor) [pid 5094] close(15) = -1 EBADF (Bad file descriptor) [pid 5094] close(16) = -1 EBADF (Bad file descriptor) [pid 5094] close(17) = -1 EBADF (Bad file descriptor) [pid 5094] close(18) = -1 EBADF (Bad file descriptor) [pid 5094] close(19) = -1 EBADF (Bad file descriptor) [pid 5094] close(20) = -1 EBADF (Bad file descriptor) [pid 5094] close(21) = -1 EBADF (Bad file descriptor) [pid 5094] close(22) = -1 EBADF (Bad file descriptor) [pid 5094] close(23) = -1 EBADF (Bad file descriptor) [pid 5094] close(24) = -1 EBADF (Bad file descriptor) [pid 5094] close(25) = -1 EBADF (Bad file descriptor) [pid 5094] close(26) = -1 EBADF (Bad file descriptor) [pid 5094] close(27) = -1 EBADF (Bad file descriptor) [pid 5094] close(28) = -1 EBADF (Bad file descriptor) [pid 5094] close(29) = -1 EBADF (Bad file descriptor) [pid 5094] exit_group(0) = ? [pid 5094] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=28, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [ 81.838351][ T5094] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./26/binderfs") = 0 [pid 5039] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./26/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./26") = 0 [pid 5039] mkdir("./27", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5096 attached , child_tidptr=0x555555e46650) = 29 [pid 5096] set_robust_list(0x555555e46660, 24) = 0 [pid 5096] chdir("./27") = 0 [pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5096] setpgid(0, 0) = 0 [pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5096] write(3, "1000", 4) = 4 [pid 5096] close(3) = 0 [pid 5096] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5096] memfd_create("syzkaller", 0) = 3 [pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5096] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5096] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5096] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5096] close(3) = 0 [pid 5096] mkdir("./file0", 0777) = 0 [ 82.084029][ T5096] loop0: detected capacity change from 0 to 8192 [ 82.097236][ T5096] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.110426][ T5096] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 82.119965][ T5096] REISERFS (device loop0): using ordered data mode [ 82.126619][ T5096] reiserfs: using flush barriers [pid 5096] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5096] chdir("./file0") = 0 [pid 5096] ioctl(4, LOOP_CLR_FD) = 0 [pid 5096] close(4) = 0 [pid 5096] mkdir(".", 0777) = -1 EEXIST (File exists) [ 82.133363][ T5096] 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 [ 82.150321][ T5096] REISERFS (device loop0): checking transaction log (loop0) [ 82.158963][ T5096] REISERFS (device loop0): Using r5 hash to sort names [ 82.175317][ T5096] reiserfs: enabling write barrier flush mode [pid 5096] mount(NULL, ".", 0x200000c0, 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 5096] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5096] chdir(".") = 0 [pid 5096] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5096] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5096] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5096] close(3) = 0 [pid 5096] close(4) = 0 [pid 5096] close(5) = 0 [pid 5096] close(6) = -1 EBADF (Bad file descriptor) [pid 5096] close(7) = -1 EBADF (Bad file descriptor) [pid 5096] close(8) = -1 EBADF (Bad file descriptor) [pid 5096] close(9) = -1 EBADF (Bad file descriptor) [pid 5096] close(10) = -1 EBADF (Bad file descriptor) [pid 5096] close(11) = -1 EBADF (Bad file descriptor) [pid 5096] close(12) = -1 EBADF (Bad file descriptor) [pid 5096] close(13) = -1 EBADF (Bad file descriptor) [pid 5096] close(14) = -1 EBADF (Bad file descriptor) [pid 5096] close(15) = -1 EBADF (Bad file descriptor) [pid 5096] close(16) = -1 EBADF (Bad file descriptor) [pid 5096] close(17) = -1 EBADF (Bad file descriptor) [pid 5096] close(18) = -1 EBADF (Bad file descriptor) [pid 5096] close(19) = -1 EBADF (Bad file descriptor) [pid 5096] close(20) = -1 EBADF (Bad file descriptor) [pid 5096] close(21) = -1 EBADF (Bad file descriptor) [pid 5096] close(22) = -1 EBADF (Bad file descriptor) [pid 5096] close(23) = -1 EBADF (Bad file descriptor) [pid 5096] close(24) = -1 EBADF (Bad file descriptor) [pid 5096] close(25) = -1 EBADF (Bad file descriptor) [pid 5096] close(26) = -1 EBADF (Bad file descriptor) [pid 5096] close(27) = -1 EBADF (Bad file descriptor) [pid 5096] close(28) = -1 EBADF (Bad file descriptor) [pid 5096] close(29) = -1 EBADF (Bad file descriptor) [pid 5096] exit_group(0) = ? [pid 5096] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=29, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 82.187026][ T5096] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./27/binderfs") = 0 [pid 5039] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./27/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./27") = 0 [pid 5039] mkdir("./28", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached , child_tidptr=0x555555e46650) = 30 [pid 5098] set_robust_list(0x555555e46660, 24) = 0 [pid 5098] chdir("./28") = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5098] memfd_create("syzkaller", 0) = 3 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5098] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5098] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5098] close(3) = 0 [pid 5098] mkdir("./file0", 0777) = 0 [ 82.384131][ T5098] loop0: detected capacity change from 0 to 8192 [ 82.396520][ T5098] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.409681][ T5098] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 82.419030][ T5098] REISERFS (device loop0): using ordered data mode [ 82.425640][ T5098] reiserfs: using flush barriers [pid 5098] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5098] chdir("./file0") = 0 [pid 5098] ioctl(4, LOOP_CLR_FD) = 0 [pid 5098] close(4) = 0 [pid 5098] mkdir(".", 0777) = -1 EEXIST (File exists) [ 82.432039][ T5098] 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 [ 82.448705][ T5098] REISERFS (device loop0): checking transaction log (loop0) [ 82.457143][ T5098] REISERFS (device loop0): Using r5 hash to sort names [ 82.467396][ T5098] reiserfs: enabling write barrier flush mode [pid 5098] mount(NULL, ".", 0x200000c0, 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 5098] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5098] chdir(".") = 0 [pid 5098] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5098] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5098] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5098] close(3) = 0 [pid 5098] close(4) = 0 [pid 5098] close(5) = 0 [pid 5098] close(6) = -1 EBADF (Bad file descriptor) [pid 5098] close(7) = -1 EBADF (Bad file descriptor) [pid 5098] close(8) = -1 EBADF (Bad file descriptor) [pid 5098] close(9) = -1 EBADF (Bad file descriptor) [pid 5098] close(10) = -1 EBADF (Bad file descriptor) [pid 5098] close(11) = -1 EBADF (Bad file descriptor) [pid 5098] close(12) = -1 EBADF (Bad file descriptor) [pid 5098] close(13) = -1 EBADF (Bad file descriptor) [pid 5098] close(14) = -1 EBADF (Bad file descriptor) [pid 5098] close(15) = -1 EBADF (Bad file descriptor) [pid 5098] close(16) = -1 EBADF (Bad file descriptor) [pid 5098] close(17) = -1 EBADF (Bad file descriptor) [pid 5098] close(18) = -1 EBADF (Bad file descriptor) [pid 5098] close(19) = -1 EBADF (Bad file descriptor) [pid 5098] close(20) = -1 EBADF (Bad file descriptor) [pid 5098] close(21) = -1 EBADF (Bad file descriptor) [pid 5098] close(22) = -1 EBADF (Bad file descriptor) [pid 5098] close(23) = -1 EBADF (Bad file descriptor) [pid 5098] close(24) = -1 EBADF (Bad file descriptor) [pid 5098] close(25) = -1 EBADF (Bad file descriptor) [pid 5098] close(26) = -1 EBADF (Bad file descriptor) [pid 5098] close(27) = -1 EBADF (Bad file descriptor) [pid 5098] close(28) = -1 EBADF (Bad file descriptor) [pid 5098] close(29) = -1 EBADF (Bad file descriptor) [pid 5098] exit_group(0) = ? [pid 5098] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=30, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./28/binderfs") = 0 [ 82.477239][ T5098] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./28/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./28") = 0 [pid 5039] mkdir("./29", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5100 attached , child_tidptr=0x555555e46650) = 31 [pid 5100] set_robust_list(0x555555e46660, 24) = 0 [pid 5100] chdir("./29") = 0 [pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5100] setpgid(0, 0) = 0 [pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5100] write(3, "1000", 4) = 4 [pid 5100] close(3) = 0 [pid 5100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5100] memfd_create("syzkaller", 0) = 3 [pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5100] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5100] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5100] close(3) = 0 [pid 5100] mkdir("./file0", 0777) = 0 [ 82.642957][ T5100] loop0: detected capacity change from 0 to 8192 [ 82.655334][ T5100] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.668383][ T5100] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 82.677740][ T5100] REISERFS (device loop0): using ordered data mode [ 82.684274][ T5100] reiserfs: using flush barriers [pid 5100] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5100] chdir("./file0") = 0 [pid 5100] ioctl(4, LOOP_CLR_FD) = 0 [pid 5100] close(4) = 0 [pid 5100] mkdir(".", 0777) = -1 EEXIST (File exists) [ 82.690745][ T5100] 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 [ 82.707362][ T5100] REISERFS (device loop0): checking transaction log (loop0) [ 82.716300][ T5100] REISERFS (device loop0): Using r5 hash to sort names [pid 5100] mount(NULL, ".", 0x200000c0, 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 5100] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5100] chdir(".") = 0 [pid 5100] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5100] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5100] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5100] close(3) = 0 [pid 5100] close(4) = 0 [pid 5100] close(5) = 0 [pid 5100] close(6) = -1 EBADF (Bad file descriptor) [pid 5100] close(7) = -1 EBADF (Bad file descriptor) [pid 5100] close(8) = -1 EBADF (Bad file descriptor) [pid 5100] close(9) = -1 EBADF (Bad file descriptor) [pid 5100] close(10) = -1 EBADF (Bad file descriptor) [pid 5100] close(11) = -1 EBADF (Bad file descriptor) [pid 5100] close(12) = -1 EBADF (Bad file descriptor) [pid 5100] close(13) = -1 EBADF (Bad file descriptor) [pid 5100] close(14) = -1 EBADF (Bad file descriptor) [pid 5100] close(15) = -1 EBADF (Bad file descriptor) [pid 5100] close(16) = -1 EBADF (Bad file descriptor) [pid 5100] close(17) = -1 EBADF (Bad file descriptor) [pid 5100] close(18) = -1 EBADF (Bad file descriptor) [pid 5100] close(19) = -1 EBADF (Bad file descriptor) [pid 5100] close(20) = -1 EBADF (Bad file descriptor) [pid 5100] close(21) = -1 EBADF (Bad file descriptor) [pid 5100] close(22) = -1 EBADF (Bad file descriptor) [pid 5100] close(23) = -1 EBADF (Bad file descriptor) [pid 5100] close(24) = -1 EBADF (Bad file descriptor) [pid 5100] close(25) = -1 EBADF (Bad file descriptor) [pid 5100] close(26) = -1 EBADF (Bad file descriptor) [pid 5100] close(27) = -1 EBADF (Bad file descriptor) [pid 5100] close(28) = -1 EBADF (Bad file descriptor) [pid 5100] close(29) = -1 EBADF (Bad file descriptor) [pid 5100] exit_group(0) = ? [pid 5100] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=31, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./29/binderfs") = 0 [ 82.737412][ T5100] reiserfs: enabling write barrier flush mode [ 82.747931][ T5100] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./29/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./29") = 0 [pid 5039] mkdir("./30", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached , child_tidptr=0x555555e46650) = 32 [pid 5102] set_robust_list(0x555555e46660, 24) = 0 [pid 5102] chdir("./30") = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5102] memfd_create("syzkaller", 0) = 3 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5102] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5102] close(3) = 0 [pid 5102] mkdir("./file0", 0777) = 0 [ 82.919165][ T5102] loop0: detected capacity change from 0 to 8192 [ 82.929581][ T5102] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 82.942737][ T5102] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 82.952155][ T5102] REISERFS (device loop0): using ordered data mode [ 82.958714][ T5102] reiserfs: using flush barriers [pid 5102] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5102] chdir("./file0") = 0 [pid 5102] ioctl(4, LOOP_CLR_FD) = 0 [pid 5102] close(4) = 0 [pid 5102] mkdir(".", 0777) = -1 EEXIST (File exists) [ 82.965287][ T5102] 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 [ 82.982020][ T5102] REISERFS (device loop0): checking transaction log (loop0) [ 82.990444][ T5102] REISERFS (device loop0): Using r5 hash to sort names [ 83.002414][ T5102] reiserfs: enabling write barrier flush mode [pid 5102] mount(NULL, ".", 0x200000c0, 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 5102] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5102] chdir(".") = 0 [pid 5102] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5102] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5102] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5102] close(3) = 0 [pid 5102] close(4) = 0 [pid 5102] close(5) = 0 [pid 5102] close(6) = -1 EBADF (Bad file descriptor) [pid 5102] close(7) = -1 EBADF (Bad file descriptor) [pid 5102] close(8) = -1 EBADF (Bad file descriptor) [pid 5102] close(9) = -1 EBADF (Bad file descriptor) [pid 5102] close(10) = -1 EBADF (Bad file descriptor) [pid 5102] close(11) = -1 EBADF (Bad file descriptor) [pid 5102] close(12) = -1 EBADF (Bad file descriptor) [pid 5102] close(13) = -1 EBADF (Bad file descriptor) [pid 5102] close(14) = -1 EBADF (Bad file descriptor) [pid 5102] close(15) = -1 EBADF (Bad file descriptor) [pid 5102] close(16) = -1 EBADF (Bad file descriptor) [pid 5102] close(17) = -1 EBADF (Bad file descriptor) [pid 5102] close(18) = -1 EBADF (Bad file descriptor) [pid 5102] close(19) = -1 EBADF (Bad file descriptor) [pid 5102] close(20) = -1 EBADF (Bad file descriptor) [pid 5102] close(21) = -1 EBADF (Bad file descriptor) [pid 5102] close(22) = -1 EBADF (Bad file descriptor) [pid 5102] close(23) = -1 EBADF (Bad file descriptor) [pid 5102] close(24) = -1 EBADF (Bad file descriptor) [pid 5102] close(25) = -1 EBADF (Bad file descriptor) [pid 5102] close(26) = -1 EBADF (Bad file descriptor) [pid 5102] close(27) = -1 EBADF (Bad file descriptor) [pid 5102] close(28) = -1 EBADF (Bad file descriptor) [pid 5102] close(29) = -1 EBADF (Bad file descriptor) [pid 5102] exit_group(0) = ? [pid 5102] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=32, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./30/binderfs") = 0 [ 83.012972][ T5102] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./30/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./30") = 0 [pid 5039] mkdir("./31", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached , child_tidptr=0x555555e46650) = 33 [pid 5104] set_robust_list(0x555555e46660, 24) = 0 [pid 5104] chdir("./31") = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5104] memfd_create("syzkaller", 0) = 3 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5104] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5104] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5104] close(3) = 0 [pid 5104] mkdir("./file0", 0777) = 0 [ 83.185338][ T5104] loop0: detected capacity change from 0 to 8192 [ 83.196056][ T5104] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.209203][ T5104] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 83.218712][ T5104] REISERFS (device loop0): using ordered data mode [ 83.225536][ T5104] reiserfs: using flush barriers [pid 5104] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5104] chdir("./file0") = 0 [pid 5104] ioctl(4, LOOP_CLR_FD) = 0 [pid 5104] close(4) = 0 [pid 5104] mkdir(".", 0777) = -1 EEXIST (File exists) [ 83.231933][ T5104] 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 [ 83.248834][ T5104] REISERFS (device loop0): checking transaction log (loop0) [ 83.257216][ T5104] REISERFS (device loop0): Using r5 hash to sort names [ 83.268506][ T5104] reiserfs: enabling write barrier flush mode [pid 5104] mount(NULL, ".", 0x200000c0, 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 5104] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5104] chdir(".") = 0 [pid 5104] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5104] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5104] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5104] close(3) = 0 [pid 5104] close(4) = 0 [pid 5104] close(5) = 0 [pid 5104] close(6) = -1 EBADF (Bad file descriptor) [pid 5104] close(7) = -1 EBADF (Bad file descriptor) [pid 5104] close(8) = -1 EBADF (Bad file descriptor) [pid 5104] close(9) = -1 EBADF (Bad file descriptor) [pid 5104] close(10) = -1 EBADF (Bad file descriptor) [pid 5104] close(11) = -1 EBADF (Bad file descriptor) [pid 5104] close(12) = -1 EBADF (Bad file descriptor) [pid 5104] close(13) = -1 EBADF (Bad file descriptor) [pid 5104] close(14) = -1 EBADF (Bad file descriptor) [pid 5104] close(15) = -1 EBADF (Bad file descriptor) [pid 5104] close(16) = -1 EBADF (Bad file descriptor) [pid 5104] close(17) = -1 EBADF (Bad file descriptor) [pid 5104] close(18) = -1 EBADF (Bad file descriptor) [pid 5104] close(19) = -1 EBADF (Bad file descriptor) [pid 5104] close(20) = -1 EBADF (Bad file descriptor) [pid 5104] close(21) = -1 EBADF (Bad file descriptor) [pid 5104] close(22) = -1 EBADF (Bad file descriptor) [pid 5104] close(23) = -1 EBADF (Bad file descriptor) [pid 5104] close(24) = -1 EBADF (Bad file descriptor) [pid 5104] close(25) = -1 EBADF (Bad file descriptor) [pid 5104] close(26) = -1 EBADF (Bad file descriptor) [pid 5104] close(27) = -1 EBADF (Bad file descriptor) [pid 5104] close(28) = -1 EBADF (Bad file descriptor) [pid 5104] close(29) = -1 EBADF (Bad file descriptor) [pid 5104] exit_group(0) = ? [pid 5104] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=33, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./31/binderfs") = 0 [ 83.278745][ T5104] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./31/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./31") = 0 [pid 5039] mkdir("./32", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5106 attached , child_tidptr=0x555555e46650) = 34 [pid 5106] set_robust_list(0x555555e46660, 24) = 0 [pid 5106] chdir("./32") = 0 [pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5106] setpgid(0, 0) = 0 [pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5106] write(3, "1000", 4) = 4 [pid 5106] close(3) = 0 [pid 5106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5106] memfd_create("syzkaller", 0) = 3 [pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5106] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5106] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5106] close(3) = 0 [pid 5106] mkdir("./file0", 0777) = 0 [ 83.464430][ T5106] loop0: detected capacity change from 0 to 8192 [ 83.476470][ T5106] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.489791][ T5106] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 83.499338][ T5106] REISERFS (device loop0): using ordered data mode [ 83.505941][ T5106] reiserfs: using flush barriers [pid 5106] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5106] chdir("./file0") = 0 [pid 5106] ioctl(4, LOOP_CLR_FD) = 0 [pid 5106] close(4) = 0 [pid 5106] mkdir(".", 0777) = -1 EEXIST (File exists) [ 83.512261][ T5106] 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 [ 83.529023][ T5106] REISERFS (device loop0): checking transaction log (loop0) [ 83.537638][ T5106] REISERFS (device loop0): Using r5 hash to sort names [ 83.549950][ T5106] reiserfs: enabling write barrier flush mode [pid 5106] mount(NULL, ".", 0x200000c0, 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 5106] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5106] chdir(".") = 0 [pid 5106] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5106] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5106] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5106] close(3) = 0 [pid 5106] close(4) = 0 [pid 5106] close(5) = 0 [pid 5106] close(6) = -1 EBADF (Bad file descriptor) [pid 5106] close(7) = -1 EBADF (Bad file descriptor) [pid 5106] close(8) = -1 EBADF (Bad file descriptor) [pid 5106] close(9) = -1 EBADF (Bad file descriptor) [pid 5106] close(10) = -1 EBADF (Bad file descriptor) [pid 5106] close(11) = -1 EBADF (Bad file descriptor) [pid 5106] close(12) = -1 EBADF (Bad file descriptor) [pid 5106] close(13) = -1 EBADF (Bad file descriptor) [pid 5106] close(14) = -1 EBADF (Bad file descriptor) [pid 5106] close(15) = -1 EBADF (Bad file descriptor) [pid 5106] close(16) = -1 EBADF (Bad file descriptor) [pid 5106] close(17) = -1 EBADF (Bad file descriptor) [pid 5106] close(18) = -1 EBADF (Bad file descriptor) [pid 5106] close(19) = -1 EBADF (Bad file descriptor) [ 83.560684][ T5106] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5106] close(20) = -1 EBADF (Bad file descriptor) [pid 5106] close(21) = -1 EBADF (Bad file descriptor) [pid 5106] close(22) = -1 EBADF (Bad file descriptor) [pid 5106] close(23) = -1 EBADF (Bad file descriptor) [pid 5106] close(24) = -1 EBADF (Bad file descriptor) [pid 5106] close(25) = -1 EBADF (Bad file descriptor) [pid 5106] close(26) = -1 EBADF (Bad file descriptor) [pid 5106] close(27) = -1 EBADF (Bad file descriptor) [pid 5106] close(28) = -1 EBADF (Bad file descriptor) [pid 5106] close(29) = -1 EBADF (Bad file descriptor) [pid 5106] exit_group(0) = ? [pid 5106] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=34, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./32/binderfs") = 0 [pid 5039] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./32/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./32") = 0 [pid 5039] mkdir("./33", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5108 attached , child_tidptr=0x555555e46650) = 35 [pid 5108] set_robust_list(0x555555e46660, 24) = 0 [pid 5108] chdir("./33") = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] memfd_create("syzkaller", 0) = 3 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5108] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5108] close(3) = 0 [pid 5108] mkdir("./file0", 0777) = 0 [ 83.743822][ T5108] loop0: detected capacity change from 0 to 8192 [ 83.756313][ T5108] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 83.769450][ T5108] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 83.778816][ T5108] REISERFS (device loop0): using ordered data mode [ 83.785413][ T5108] reiserfs: using flush barriers [pid 5108] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5108] chdir("./file0") = 0 [pid 5108] ioctl(4, LOOP_CLR_FD) = 0 [pid 5108] close(4) = 0 [pid 5108] mkdir(".", 0777) = -1 EEXIST (File exists) [ 83.791811][ T5108] 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 [ 83.808575][ T5108] REISERFS (device loop0): checking transaction log (loop0) [ 83.817329][ T5108] REISERFS (device loop0): Using r5 hash to sort names [ 83.827218][ T5108] reiserfs: enabling write barrier flush mode [pid 5108] mount(NULL, ".", 0x200000c0, 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 5108] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5108] chdir(".") = 0 [pid 5108] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5108] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5108] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5108] close(3) = 0 [pid 5108] close(4) = 0 [pid 5108] close(5) = 0 [pid 5108] close(6) = -1 EBADF (Bad file descriptor) [pid 5108] close(7) = -1 EBADF (Bad file descriptor) [pid 5108] close(8) = -1 EBADF (Bad file descriptor) [pid 5108] close(9) = -1 EBADF (Bad file descriptor) [pid 5108] close(10) = -1 EBADF (Bad file descriptor) [pid 5108] close(11) = -1 EBADF (Bad file descriptor) [pid 5108] close(12) = -1 EBADF (Bad file descriptor) [pid 5108] close(13) = -1 EBADF (Bad file descriptor) [pid 5108] close(14) = -1 EBADF (Bad file descriptor) [pid 5108] close(15) = -1 EBADF (Bad file descriptor) [pid 5108] close(16) = -1 EBADF (Bad file descriptor) [pid 5108] close(17) = -1 EBADF (Bad file descriptor) [pid 5108] close(18) = -1 EBADF (Bad file descriptor) [pid 5108] close(19) = -1 EBADF (Bad file descriptor) [pid 5108] close(20) = -1 EBADF (Bad file descriptor) [pid 5108] close(21) = -1 EBADF (Bad file descriptor) [pid 5108] close(22) = -1 EBADF (Bad file descriptor) [pid 5108] close(23) = -1 EBADF (Bad file descriptor) [pid 5108] close(24) = -1 EBADF (Bad file descriptor) [pid 5108] close(25) = -1 EBADF (Bad file descriptor) [pid 5108] close(26) = -1 EBADF (Bad file descriptor) [pid 5108] close(27) = -1 EBADF (Bad file descriptor) [pid 5108] close(28) = -1 EBADF (Bad file descriptor) [pid 5108] close(29) = -1 EBADF (Bad file descriptor) [pid 5108] exit_group(0) = ? [pid 5108] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=35, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./33/binderfs") = 0 [ 83.836946][ T5108] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./33/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./33") = 0 [pid 5039] mkdir("./34", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 36 ./strace-static-x86_64: Process 5110 attached [pid 5110] set_robust_list(0x555555e46660, 24) = 0 [pid 5110] chdir("./34") = 0 [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5110] setpgid(0, 0) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5110] write(3, "1000", 4) = 4 [pid 5110] close(3) = 0 [pid 5110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5110] memfd_create("syzkaller", 0) = 3 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5110] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5110] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5110] close(3) = 0 [pid 5110] mkdir("./file0", 0777) = 0 [ 84.011831][ T5110] loop0: detected capacity change from 0 to 8192 [ 84.022507][ T5110] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.035745][ T5110] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.045264][ T5110] REISERFS (device loop0): using ordered data mode [ 84.051792][ T5110] reiserfs: using flush barriers [pid 5110] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5110] chdir("./file0") = 0 [pid 5110] ioctl(4, LOOP_CLR_FD) = 0 [pid 5110] close(4) = 0 [pid 5110] mkdir(".", 0777) = -1 EEXIST (File exists) [ 84.058353][ T5110] 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 [ 84.075005][ T5110] REISERFS (device loop0): checking transaction log (loop0) [ 84.083259][ T5110] REISERFS (device loop0): Using r5 hash to sort names [ 84.104708][ T5110] reiserfs: enabling write barrier flush mode [pid 5110] mount(NULL, ".", 0x200000c0, 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 5110] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5110] chdir(".") = 0 [pid 5110] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5110] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5110] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5110] close(3) = 0 [pid 5110] close(4) = 0 [pid 5110] close(5) = 0 [pid 5110] close(6) = -1 EBADF (Bad file descriptor) [pid 5110] close(7) = -1 EBADF (Bad file descriptor) [pid 5110] close(8) = -1 EBADF (Bad file descriptor) [pid 5110] close(9) = -1 EBADF (Bad file descriptor) [pid 5110] close(10) = -1 EBADF (Bad file descriptor) [pid 5110] close(11) = -1 EBADF (Bad file descriptor) [pid 5110] close(12) = -1 EBADF (Bad file descriptor) [pid 5110] close(13) = -1 EBADF (Bad file descriptor) [pid 5110] close(14) = -1 EBADF (Bad file descriptor) [pid 5110] close(15) = -1 EBADF (Bad file descriptor) [pid 5110] close(16) = -1 EBADF (Bad file descriptor) [pid 5110] close(17) = -1 EBADF (Bad file descriptor) [pid 5110] close(18) = -1 EBADF (Bad file descriptor) [pid 5110] close(19) = -1 EBADF (Bad file descriptor) [pid 5110] close(20) = -1 EBADF (Bad file descriptor) [pid 5110] close(21) = -1 EBADF (Bad file descriptor) [pid 5110] close(22) = -1 EBADF (Bad file descriptor) [pid 5110] close(23) = -1 EBADF (Bad file descriptor) [pid 5110] close(24) = -1 EBADF (Bad file descriptor) [pid 5110] close(25) = -1 EBADF (Bad file descriptor) [pid 5110] close(26) = -1 EBADF (Bad file descriptor) [pid 5110] close(27) = -1 EBADF (Bad file descriptor) [pid 5110] close(28) = -1 EBADF (Bad file descriptor) [pid 5110] close(29) = -1 EBADF (Bad file descriptor) [pid 5110] exit_group(0) = ? [pid 5110] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=36, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./34/binderfs") = 0 [ 84.114419][ T5110] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./34/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./34") = 0 [pid 5039] mkdir("./35", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5112 attached , child_tidptr=0x555555e46650) = 37 [pid 5112] set_robust_list(0x555555e46660, 24) = 0 [pid 5112] chdir("./35") = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5112] setpgid(0, 0) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5112] write(3, "1000", 4) = 4 [pid 5112] close(3) = 0 [pid 5112] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5112] memfd_create("syzkaller", 0) = 3 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5112] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5112] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5112] close(3) = 0 [pid 5112] mkdir("./file0", 0777) = 0 [ 84.278603][ T5112] loop0: detected capacity change from 0 to 8192 [ 84.289667][ T5112] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.302792][ T5112] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.312189][ T5112] REISERFS (device loop0): using ordered data mode [ 84.318835][ T5112] reiserfs: using flush barriers [pid 5112] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5112] chdir("./file0") = 0 [pid 5112] ioctl(4, LOOP_CLR_FD) = 0 [pid 5112] close(4) = 0 [pid 5112] mkdir(".", 0777) = -1 EEXIST (File exists) [ 84.325178][ T5112] 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 [ 84.341740][ T5112] REISERFS (device loop0): checking transaction log (loop0) [ 84.350384][ T5112] REISERFS (device loop0): Using r5 hash to sort names [ 84.367248][ T5112] reiserfs: enabling write barrier flush mode [pid 5112] mount(NULL, ".", 0x200000c0, 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 5112] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5112] chdir(".") = 0 [pid 5112] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5112] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5112] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5112] close(3) = 0 [pid 5112] close(4) = 0 [pid 5112] close(5) = 0 [pid 5112] close(6) = -1 EBADF (Bad file descriptor) [pid 5112] close(7) = -1 EBADF (Bad file descriptor) [pid 5112] close(8) = -1 EBADF (Bad file descriptor) [pid 5112] close(9) = -1 EBADF (Bad file descriptor) [pid 5112] close(10) = -1 EBADF (Bad file descriptor) [pid 5112] close(11) = -1 EBADF (Bad file descriptor) [pid 5112] close(12) = -1 EBADF (Bad file descriptor) [pid 5112] close(13) = -1 EBADF (Bad file descriptor) [pid 5112] close(14) = -1 EBADF (Bad file descriptor) [pid 5112] close(15) = -1 EBADF (Bad file descriptor) [pid 5112] close(16) = -1 EBADF (Bad file descriptor) [pid 5112] close(17) = -1 EBADF (Bad file descriptor) [pid 5112] close(18) = -1 EBADF (Bad file descriptor) [pid 5112] close(19) = -1 EBADF (Bad file descriptor) [pid 5112] close(20) = -1 EBADF (Bad file descriptor) [pid 5112] close(21) = -1 EBADF (Bad file descriptor) [pid 5112] close(22) = -1 EBADF (Bad file descriptor) [pid 5112] close(23) = -1 EBADF (Bad file descriptor) [pid 5112] close(24) = -1 EBADF (Bad file descriptor) [pid 5112] close(25) = -1 EBADF (Bad file descriptor) [pid 5112] close(26) = -1 EBADF (Bad file descriptor) [pid 5112] close(27) = -1 EBADF (Bad file descriptor) [pid 5112] close(28) = -1 EBADF (Bad file descriptor) [pid 5112] close(29) = -1 EBADF (Bad file descriptor) [pid 5112] exit_group(0) = ? [pid 5112] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=37, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./35/binderfs") = 0 [ 84.382281][ T5112] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./35/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./35") = 0 [pid 5039] mkdir("./36", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 38 ./strace-static-x86_64: Process 5114 attached [pid 5114] set_robust_list(0x555555e46660, 24) = 0 [pid 5114] chdir("./36") = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5114] memfd_create("syzkaller", 0) = 3 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5114] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5114] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5114] close(3) = 0 [pid 5114] mkdir("./file0", 0777) = 0 [ 84.571925][ T5114] loop0: detected capacity change from 0 to 8192 [ 84.582443][ T5114] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.595758][ T5114] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.605059][ T5114] REISERFS (device loop0): using ordered data mode [ 84.611669][ T5114] reiserfs: using flush barriers [pid 5114] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5114] chdir("./file0") = 0 [pid 5114] ioctl(4, LOOP_CLR_FD) = 0 [pid 5114] close(4) = 0 [pid 5114] mkdir(".", 0777) = -1 EEXIST (File exists) [ 84.618195][ T5114] 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 [ 84.634661][ T5114] REISERFS (device loop0): checking transaction log (loop0) [ 84.643117][ T5114] REISERFS (device loop0): Using r5 hash to sort names [ 84.655435][ T5114] reiserfs: enabling write barrier flush mode [pid 5114] mount(NULL, ".", 0x200000c0, 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 5114] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5114] chdir(".") = 0 [pid 5114] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5114] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5114] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5114] close(3) = 0 [pid 5114] close(4) = 0 [pid 5114] close(5) = 0 [pid 5114] close(6) = -1 EBADF (Bad file descriptor) [pid 5114] close(7) = -1 EBADF (Bad file descriptor) [pid 5114] close(8) = -1 EBADF (Bad file descriptor) [pid 5114] close(9) = -1 EBADF (Bad file descriptor) [pid 5114] close(10) = -1 EBADF (Bad file descriptor) [pid 5114] close(11) = -1 EBADF (Bad file descriptor) [pid 5114] close(12) = -1 EBADF (Bad file descriptor) [pid 5114] close(13) = -1 EBADF (Bad file descriptor) [pid 5114] close(14) = -1 EBADF (Bad file descriptor) [pid 5114] close(15) = -1 EBADF (Bad file descriptor) [pid 5114] close(16) = -1 EBADF (Bad file descriptor) [pid 5114] close(17) = -1 EBADF (Bad file descriptor) [pid 5114] close(18) = -1 EBADF (Bad file descriptor) [pid 5114] close(19) = -1 EBADF (Bad file descriptor) [pid 5114] close(20) = -1 EBADF (Bad file descriptor) [pid 5114] close(21) = -1 EBADF (Bad file descriptor) [pid 5114] close(22) = -1 EBADF (Bad file descriptor) [pid 5114] close(23) = -1 EBADF (Bad file descriptor) [pid 5114] close(24) = -1 EBADF (Bad file descriptor) [pid 5114] close(25) = -1 EBADF (Bad file descriptor) [pid 5114] close(26) = -1 EBADF (Bad file descriptor) [pid 5114] close(27) = -1 EBADF (Bad file descriptor) [pid 5114] close(28) = -1 EBADF (Bad file descriptor) [pid 5114] close(29) = -1 EBADF (Bad file descriptor) [pid 5114] exit_group(0) = ? [pid 5114] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=38, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 84.665990][ T5114] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] unlink("./36/binderfs") = 0 [pid 5039] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./36/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./36") = 0 [pid 5039] mkdir("./37", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5116 attached , child_tidptr=0x555555e46650) = 39 [pid 5116] set_robust_list(0x555555e46660, 24) = 0 [pid 5116] chdir("./37") = 0 [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5116] setpgid(0, 0) = 0 [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] write(3, "1000", 4) = 4 [pid 5116] close(3) = 0 [pid 5116] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5116] memfd_create("syzkaller", 0) = 3 [pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5116] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5116] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5116] close(3) = 0 [pid 5116] mkdir("./file0", 0777) = 0 [ 84.853759][ T5116] loop0: detected capacity change from 0 to 8192 [ 84.864261][ T5116] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 84.877477][ T5116] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 84.886945][ T5116] REISERFS (device loop0): using ordered data mode [ 84.893464][ T5116] reiserfs: using flush barriers [pid 5116] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5116] chdir("./file0") = 0 [pid 5116] ioctl(4, LOOP_CLR_FD) = 0 [pid 5116] close(4) = 0 [pid 5116] mkdir(".", 0777) = -1 EEXIST (File exists) [ 84.899875][ T5116] 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 [ 84.916571][ T5116] REISERFS (device loop0): checking transaction log (loop0) [ 84.925084][ T5116] REISERFS (device loop0): Using r5 hash to sort names [ 84.937997][ T5116] reiserfs: enabling write barrier flush mode [pid 5116] mount(NULL, ".", 0x200000c0, 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 5116] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5116] chdir(".") = 0 [pid 5116] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5116] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5116] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5116] close(3) = 0 [pid 5116] close(4) = 0 [pid 5116] close(5) = 0 [pid 5116] close(6) = -1 EBADF (Bad file descriptor) [pid 5116] close(7) = -1 EBADF (Bad file descriptor) [pid 5116] close(8) = -1 EBADF (Bad file descriptor) [pid 5116] close(9) = -1 EBADF (Bad file descriptor) [pid 5116] close(10) = -1 EBADF (Bad file descriptor) [pid 5116] close(11) = -1 EBADF (Bad file descriptor) [pid 5116] close(12) = -1 EBADF (Bad file descriptor) [pid 5116] close(13) = -1 EBADF (Bad file descriptor) [pid 5116] close(14) = -1 EBADF (Bad file descriptor) [pid 5116] close(15) = -1 EBADF (Bad file descriptor) [pid 5116] close(16) = -1 EBADF (Bad file descriptor) [pid 5116] close(17) = -1 EBADF (Bad file descriptor) [pid 5116] close(18) = -1 EBADF (Bad file descriptor) [pid 5116] close(19) = -1 EBADF (Bad file descriptor) [pid 5116] close(20) = -1 EBADF (Bad file descriptor) [pid 5116] close(21) = -1 EBADF (Bad file descriptor) [pid 5116] close(22) = -1 EBADF (Bad file descriptor) [pid 5116] close(23) = -1 EBADF (Bad file descriptor) [pid 5116] close(24) = -1 EBADF (Bad file descriptor) [pid 5116] close(25) = -1 EBADF (Bad file descriptor) [pid 5116] close(26) = -1 EBADF (Bad file descriptor) [pid 5116] close(27) = -1 EBADF (Bad file descriptor) [pid 5116] close(28) = -1 EBADF (Bad file descriptor) [pid 5116] close(29) = -1 EBADF (Bad file descriptor) [pid 5116] exit_group(0) = ? [pid 5116] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=39, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./37/binderfs") = 0 [ 84.948568][ T5116] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./37/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./37") = 0 [pid 5039] mkdir("./38", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5118 attached , child_tidptr=0x555555e46650) = 40 [pid 5118] set_robust_list(0x555555e46660, 24) = 0 [pid 5118] chdir("./38") = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5118] setpgid(0, 0) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5118] write(3, "1000", 4) = 4 [pid 5118] close(3) = 0 [pid 5118] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5118] memfd_create("syzkaller", 0) = 3 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5118] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5118] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5118] close(3) = 0 [pid 5118] mkdir("./file0", 0777) = 0 [ 85.112045][ T5118] loop0: detected capacity change from 0 to 8192 [ 85.122998][ T5118] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.136099][ T5118] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 85.145517][ T5118] REISERFS (device loop0): using ordered data mode [ 85.152043][ T5118] reiserfs: using flush barriers [pid 5118] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5118] chdir("./file0") = 0 [pid 5118] ioctl(4, LOOP_CLR_FD) = 0 [pid 5118] close(4) = 0 [pid 5118] mkdir(".", 0777) = -1 EEXIST (File exists) [ 85.158674][ T5118] 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 [ 85.175385][ T5118] REISERFS (device loop0): checking transaction log (loop0) [ 85.183776][ T5118] REISERFS (device loop0): Using r5 hash to sort names [ 85.206058][ T5118] reiserfs: enabling write barrier flush mode [pid 5118] mount(NULL, ".", 0x200000c0, 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 5118] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5118] chdir(".") = 0 [pid 5118] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5118] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5118] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5118] close(3) = 0 [pid 5118] close(4) = 0 [pid 5118] close(5) = 0 [pid 5118] close(6) = -1 EBADF (Bad file descriptor) [pid 5118] close(7) = -1 EBADF (Bad file descriptor) [pid 5118] close(8) = -1 EBADF (Bad file descriptor) [pid 5118] close(9) = -1 EBADF (Bad file descriptor) [pid 5118] close(10) = -1 EBADF (Bad file descriptor) [pid 5118] close(11) = -1 EBADF (Bad file descriptor) [pid 5118] close(12) = -1 EBADF (Bad file descriptor) [pid 5118] close(13) = -1 EBADF (Bad file descriptor) [pid 5118] close(14) = -1 EBADF (Bad file descriptor) [pid 5118] close(15) = -1 EBADF (Bad file descriptor) [pid 5118] close(16) = -1 EBADF (Bad file descriptor) [pid 5118] close(17) = -1 EBADF (Bad file descriptor) [pid 5118] close(18) = -1 EBADF (Bad file descriptor) [pid 5118] close(19) = -1 EBADF (Bad file descriptor) [pid 5118] close(20) = -1 EBADF (Bad file descriptor) [pid 5118] close(21) = -1 EBADF (Bad file descriptor) [pid 5118] close(22) = -1 EBADF (Bad file descriptor) [pid 5118] close(23) = -1 EBADF (Bad file descriptor) [pid 5118] close(24) = -1 EBADF (Bad file descriptor) [pid 5118] close(25) = -1 EBADF (Bad file descriptor) [pid 5118] close(26) = -1 EBADF (Bad file descriptor) [pid 5118] close(27) = -1 EBADF (Bad file descriptor) [pid 5118] close(28) = -1 EBADF (Bad file descriptor) [pid 5118] close(29) = -1 EBADF (Bad file descriptor) [pid 5118] exit_group(0) = ? [pid 5118] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=40, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./38/binderfs") = 0 [ 85.217511][ T5118] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./38/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./38") = 0 [pid 5039] mkdir("./39", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5120 attached , child_tidptr=0x555555e46650) = 41 [pid 5120] set_robust_list(0x555555e46660, 24) = 0 [pid 5120] chdir("./39") = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3) = 0 [pid 5120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5120] memfd_create("syzkaller", 0) = 3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5120] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5120] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5120] close(3) = 0 [pid 5120] mkdir("./file0", 0777) = 0 [ 85.381220][ T5120] loop0: detected capacity change from 0 to 8192 [ 85.392476][ T5120] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.406108][ T5120] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 85.415385][ T5120] REISERFS (device loop0): using ordered data mode [ 85.421906][ T5120] reiserfs: using flush barriers [pid 5120] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5120] chdir("./file0") = 0 [pid 5120] ioctl(4, LOOP_CLR_FD) = 0 [pid 5120] close(4) = 0 [pid 5120] mkdir(".", 0777) = -1 EEXIST (File exists) [ 85.428379][ T5120] 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 [ 85.444954][ T5120] REISERFS (device loop0): checking transaction log (loop0) [ 85.453410][ T5120] REISERFS (device loop0): Using r5 hash to sort names [ 85.465646][ T5120] reiserfs: enabling write barrier flush mode [pid 5120] mount(NULL, ".", 0x200000c0, 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 5120] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5120] chdir(".") = 0 [pid 5120] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5120] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5120] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5120] close(3) = 0 [pid 5120] close(4) = 0 [pid 5120] close(5) = 0 [pid 5120] close(6) = -1 EBADF (Bad file descriptor) [pid 5120] close(7) = -1 EBADF (Bad file descriptor) [pid 5120] close(8) = -1 EBADF (Bad file descriptor) [pid 5120] close(9) = -1 EBADF (Bad file descriptor) [pid 5120] close(10) = -1 EBADF (Bad file descriptor) [pid 5120] close(11) = -1 EBADF (Bad file descriptor) [pid 5120] close(12) = -1 EBADF (Bad file descriptor) [pid 5120] close(13) = -1 EBADF (Bad file descriptor) [pid 5120] close(14) = -1 EBADF (Bad file descriptor) [pid 5120] close(15) = -1 EBADF (Bad file descriptor) [pid 5120] close(16) = -1 EBADF (Bad file descriptor) [pid 5120] close(17) = -1 EBADF (Bad file descriptor) [pid 5120] close(18) = -1 EBADF (Bad file descriptor) [pid 5120] close(19) = -1 EBADF (Bad file descriptor) [pid 5120] close(20) = -1 EBADF (Bad file descriptor) [pid 5120] close(21) = -1 EBADF (Bad file descriptor) [pid 5120] close(22) = -1 EBADF (Bad file descriptor) [pid 5120] close(23) = -1 EBADF (Bad file descriptor) [pid 5120] close(24) = -1 EBADF (Bad file descriptor) [pid 5120] close(25) = -1 EBADF (Bad file descriptor) [pid 5120] close(26) = -1 EBADF (Bad file descriptor) [pid 5120] close(27) = -1 EBADF (Bad file descriptor) [pid 5120] close(28) = -1 EBADF (Bad file descriptor) [pid 5120] close(29) = -1 EBADF (Bad file descriptor) [pid 5120] exit_group(0) = ? [pid 5120] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=41, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 85.476673][ T5120] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./39/binderfs") = 0 [pid 5039] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./39/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./39") = 0 [pid 5039] mkdir("./40", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5122 attached , child_tidptr=0x555555e46650) = 42 [pid 5122] set_robust_list(0x555555e46660, 24) = 0 [pid 5122] chdir("./40") = 0 [pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5122] setpgid(0, 0) = 0 [pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5122] write(3, "1000", 4) = 4 [pid 5122] close(3) = 0 [pid 5122] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5122] memfd_create("syzkaller", 0) = 3 [pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5122] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5122] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5122] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5122] close(3) = 0 [pid 5122] mkdir("./file0", 0777) = 0 [ 85.656274][ T5122] loop0: detected capacity change from 0 to 8192 [ 85.666530][ T5122] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.679620][ T5122] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 85.688865][ T5122] REISERFS (device loop0): using ordered data mode [ 85.695449][ T5122] reiserfs: using flush barriers [pid 5122] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5122] chdir("./file0") = 0 [pid 5122] ioctl(4, LOOP_CLR_FD) = 0 [pid 5122] close(4) = 0 [pid 5122] mkdir(".", 0777) = -1 EEXIST (File exists) [ 85.702100][ T5122] 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 [ 85.718592][ T5122] REISERFS (device loop0): checking transaction log (loop0) [ 85.727034][ T5122] REISERFS (device loop0): Using r5 hash to sort names [ 85.737858][ T5122] reiserfs: enabling write barrier flush mode [pid 5122] mount(NULL, ".", 0x200000c0, 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 5122] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5122] chdir(".") = 0 [pid 5122] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5122] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5122] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5122] close(3) = 0 [pid 5122] close(4) = 0 [pid 5122] close(5) = 0 [pid 5122] close(6) = -1 EBADF (Bad file descriptor) [pid 5122] close(7) = -1 EBADF (Bad file descriptor) [pid 5122] close(8) = -1 EBADF (Bad file descriptor) [pid 5122] close(9) = -1 EBADF (Bad file descriptor) [pid 5122] close(10) = -1 EBADF (Bad file descriptor) [pid 5122] close(11) = -1 EBADF (Bad file descriptor) [pid 5122] close(12) = -1 EBADF (Bad file descriptor) [pid 5122] close(13) = -1 EBADF (Bad file descriptor) [pid 5122] close(14) = -1 EBADF (Bad file descriptor) [pid 5122] close(15) = -1 EBADF (Bad file descriptor) [pid 5122] close(16) = -1 EBADF (Bad file descriptor) [pid 5122] close(17) = -1 EBADF (Bad file descriptor) [pid 5122] close(18) = -1 EBADF (Bad file descriptor) [pid 5122] close(19) = -1 EBADF (Bad file descriptor) [pid 5122] close(20) = -1 EBADF (Bad file descriptor) [pid 5122] close(21) = -1 EBADF (Bad file descriptor) [pid 5122] close(22) = -1 EBADF (Bad file descriptor) [pid 5122] close(23) = -1 EBADF (Bad file descriptor) [pid 5122] close(24) = -1 EBADF (Bad file descriptor) [pid 5122] close(25) = -1 EBADF (Bad file descriptor) [pid 5122] close(26) = -1 EBADF (Bad file descriptor) [pid 5122] close(27) = -1 EBADF (Bad file descriptor) [pid 5122] close(28) = -1 EBADF (Bad file descriptor) [pid 5122] close(29) = -1 EBADF (Bad file descriptor) [pid 5122] exit_group(0) = ? [pid 5122] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=42, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./40/binderfs") = 0 [ 85.748007][ T5122] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./40/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./40") = 0 [pid 5039] mkdir("./41", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached , child_tidptr=0x555555e46650) = 43 [pid 5124] set_robust_list(0x555555e46660, 24) = 0 [pid 5124] chdir("./41") = 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5124] setpgid(0, 0) = 0 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] write(3, "1000", 4) = 4 [pid 5124] close(3) = 0 [pid 5124] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5124] memfd_create("syzkaller", 0) = 3 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5124] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5124] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5124] close(3) = 0 [pid 5124] mkdir("./file0", 0777) = 0 [ 85.928069][ T5124] loop0: detected capacity change from 0 to 8192 [ 85.939257][ T5124] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 85.952337][ T5124] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 85.961863][ T5124] REISERFS (device loop0): using ordered data mode [ 85.968540][ T5124] reiserfs: using flush barriers [pid 5124] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5124] chdir("./file0") = 0 [pid 5124] ioctl(4, LOOP_CLR_FD) = 0 [pid 5124] close(4) = 0 [pid 5124] mkdir(".", 0777) = -1 EEXIST (File exists) [ 85.975053][ T5124] 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 [ 85.991603][ T5124] REISERFS (device loop0): checking transaction log (loop0) [ 86.000253][ T5124] REISERFS (device loop0): Using r5 hash to sort names [ 86.020952][ T5124] reiserfs: enabling write barrier flush mode [pid 5124] mount(NULL, ".", 0x200000c0, 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 5124] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5124] chdir(".") = 0 [pid 5124] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5124] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5124] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5124] close(3) = 0 [pid 5124] close(4) = 0 [pid 5124] close(5) = 0 [pid 5124] close(6) = -1 EBADF (Bad file descriptor) [pid 5124] close(7) = -1 EBADF (Bad file descriptor) [pid 5124] close(8) = -1 EBADF (Bad file descriptor) [pid 5124] close(9) = -1 EBADF (Bad file descriptor) [pid 5124] close(10) = -1 EBADF (Bad file descriptor) [pid 5124] close(11) = -1 EBADF (Bad file descriptor) [pid 5124] close(12) = -1 EBADF (Bad file descriptor) [pid 5124] close(13) = -1 EBADF (Bad file descriptor) [pid 5124] close(14) = -1 EBADF (Bad file descriptor) [pid 5124] close(15) = -1 EBADF (Bad file descriptor) [pid 5124] close(16) = -1 EBADF (Bad file descriptor) [pid 5124] close(17) = -1 EBADF (Bad file descriptor) [pid 5124] close(18) = -1 EBADF (Bad file descriptor) [pid 5124] close(19) = -1 EBADF (Bad file descriptor) [pid 5124] close(20) = -1 EBADF (Bad file descriptor) [pid 5124] close(21) = -1 EBADF (Bad file descriptor) [pid 5124] close(22) = -1 EBADF (Bad file descriptor) [pid 5124] close(23) = -1 EBADF (Bad file descriptor) [pid 5124] close(24) = -1 EBADF (Bad file descriptor) [pid 5124] close(25) = -1 EBADF (Bad file descriptor) [pid 5124] close(26) = -1 EBADF (Bad file descriptor) [pid 5124] close(27) = -1 EBADF (Bad file descriptor) [pid 5124] close(28) = -1 EBADF (Bad file descriptor) [pid 5124] close(29) = -1 EBADF (Bad file descriptor) [pid 5124] exit_group(0) = ? [pid 5124] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=43, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./41/binderfs") = 0 [ 86.033433][ T5124] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./41/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./41") = 0 [pid 5039] mkdir("./42", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached , child_tidptr=0x555555e46650) = 44 [pid 5126] set_robust_list(0x555555e46660, 24) = 0 [pid 5126] chdir("./42") = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5126] setpgid(0, 0) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] write(3, "1000", 4) = 4 [pid 5126] close(3) = 0 [pid 5126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5126] memfd_create("syzkaller", 0) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5126] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5126] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5126] close(3) = 0 [pid 5126] mkdir("./file0", 0777) = 0 [ 86.214123][ T5126] loop0: detected capacity change from 0 to 8192 [ 86.225230][ T5126] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.238285][ T5126] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 86.247642][ T5126] REISERFS (device loop0): using ordered data mode [ 86.254174][ T5126] reiserfs: using flush barriers [pid 5126] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5126] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5126] chdir("./file0") = 0 [pid 5126] ioctl(4, LOOP_CLR_FD) = 0 [pid 5126] close(4) = 0 [pid 5126] mkdir(".", 0777) = -1 EEXIST (File exists) [ 86.260727][ T5126] 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 [ 86.277513][ T5126] REISERFS (device loop0): checking transaction log (loop0) [ 86.286385][ T5126] REISERFS (device loop0): Using r5 hash to sort names [ 86.306336][ T5126] reiserfs: enabling write barrier flush mode [pid 5126] mount(NULL, ".", 0x200000c0, 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 5126] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5126] chdir(".") = 0 [pid 5126] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5126] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5126] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5126] close(3) = 0 [pid 5126] close(4) = 0 [pid 5126] close(5) = 0 [pid 5126] close(6) = -1 EBADF (Bad file descriptor) [pid 5126] close(7) = -1 EBADF (Bad file descriptor) [pid 5126] close(8) = -1 EBADF (Bad file descriptor) [pid 5126] close(9) = -1 EBADF (Bad file descriptor) [pid 5126] close(10) = -1 EBADF (Bad file descriptor) [pid 5126] close(11) = -1 EBADF (Bad file descriptor) [pid 5126] close(12) = -1 EBADF (Bad file descriptor) [pid 5126] close(13) = -1 EBADF (Bad file descriptor) [pid 5126] close(14) = -1 EBADF (Bad file descriptor) [pid 5126] close(15) = -1 EBADF (Bad file descriptor) [pid 5126] close(16) = -1 EBADF (Bad file descriptor) [pid 5126] close(17) = -1 EBADF (Bad file descriptor) [pid 5126] close(18) = -1 EBADF (Bad file descriptor) [pid 5126] close(19) = -1 EBADF (Bad file descriptor) [pid 5126] close(20) = -1 EBADF (Bad file descriptor) [pid 5126] close(21) = -1 EBADF (Bad file descriptor) [pid 5126] close(22) = -1 EBADF (Bad file descriptor) [pid 5126] close(23) = -1 EBADF (Bad file descriptor) [pid 5126] close(24) = -1 EBADF (Bad file descriptor) [pid 5126] close(25) = -1 EBADF (Bad file descriptor) [pid 5126] close(26) = -1 EBADF (Bad file descriptor) [pid 5126] close(27) = -1 EBADF (Bad file descriptor) [pid 5126] close(28) = -1 EBADF (Bad file descriptor) [pid 5126] close(29) = -1 EBADF (Bad file descriptor) [pid 5126] exit_group(0) = ? [pid 5126] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=44, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./42/binderfs") = 0 [ 86.317455][ T5126] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./42/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./42") = 0 [pid 5039] mkdir("./43", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 45 ./strace-static-x86_64: Process 5128 attached [pid 5128] set_robust_list(0x555555e46660, 24) = 0 [pid 5128] chdir("./43") = 0 [pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5128] setpgid(0, 0) = 0 [pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5128] write(3, "1000", 4) = 4 [pid 5128] close(3) = 0 [pid 5128] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5128] memfd_create("syzkaller", 0) = 3 [pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5128] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5128] close(3) = 0 [pid 5128] mkdir("./file0", 0777) = 0 [ 86.519654][ T5128] loop0: detected capacity change from 0 to 8192 [ 86.531012][ T5128] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.544374][ T5128] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 86.553882][ T5128] REISERFS (device loop0): using ordered data mode [ 86.560457][ T5128] reiserfs: using flush barriers [pid 5128] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5128] chdir("./file0") = 0 [pid 5128] ioctl(4, LOOP_CLR_FD) = 0 [pid 5128] close(4) = 0 [pid 5128] mkdir(".", 0777) = -1 EEXIST (File exists) [ 86.567083][ T5128] 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 [ 86.583764][ T5128] REISERFS (device loop0): checking transaction log (loop0) [ 86.592486][ T5128] REISERFS (device loop0): Using r5 hash to sort names [ 86.603318][ T5128] reiserfs: enabling write barrier flush mode [pid 5128] mount(NULL, ".", 0x200000c0, 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 5128] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5128] chdir(".") = 0 [pid 5128] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5128] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5128] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5128] close(3) = 0 [pid 5128] close(4) = 0 [pid 5128] close(5) = 0 [pid 5128] close(6) = -1 EBADF (Bad file descriptor) [pid 5128] close(7) = -1 EBADF (Bad file descriptor) [pid 5128] close(8) = -1 EBADF (Bad file descriptor) [pid 5128] close(9) = -1 EBADF (Bad file descriptor) [pid 5128] close(10) = -1 EBADF (Bad file descriptor) [pid 5128] close(11) = -1 EBADF (Bad file descriptor) [pid 5128] close(12) = -1 EBADF (Bad file descriptor) [pid 5128] close(13) = -1 EBADF (Bad file descriptor) [pid 5128] close(14) = -1 EBADF (Bad file descriptor) [pid 5128] close(15) = -1 EBADF (Bad file descriptor) [pid 5128] close(16) = -1 EBADF (Bad file descriptor) [pid 5128] close(17) = -1 EBADF (Bad file descriptor) [pid 5128] close(18) = -1 EBADF (Bad file descriptor) [pid 5128] close(19) = -1 EBADF (Bad file descriptor) [pid 5128] close(20) = -1 EBADF (Bad file descriptor) [pid 5128] close(21) = -1 EBADF (Bad file descriptor) [pid 5128] close(22) = -1 EBADF (Bad file descriptor) [pid 5128] close(23) = -1 EBADF (Bad file descriptor) [pid 5128] close(24) = -1 EBADF (Bad file descriptor) [pid 5128] close(25) = -1 EBADF (Bad file descriptor) [pid 5128] close(26) = -1 EBADF (Bad file descriptor) [pid 5128] close(27) = -1 EBADF (Bad file descriptor) [pid 5128] close(28) = -1 EBADF (Bad file descriptor) [pid 5128] close(29) = -1 EBADF (Bad file descriptor) [pid 5128] exit_group(0) = ? [pid 5128] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=45, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5039] umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./43/binderfs") = 0 [ 86.615416][ T5128] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./43/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./43") = 0 [pid 5039] mkdir("./44", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5130 attached , child_tidptr=0x555555e46650) = 46 [pid 5130] set_robust_list(0x555555e46660, 24) = 0 [pid 5130] chdir("./44") = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5130] setpgid(0, 0) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5130] write(3, "1000", 4) = 4 [pid 5130] close(3) = 0 [pid 5130] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5130] memfd_create("syzkaller", 0) = 3 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [ 86.737081][ T9] cfg80211: failed to load regulatory.db [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5130] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5130] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5130] close(3) = 0 [pid 5130] mkdir("./file0", 0777) = 0 [ 86.805342][ T5130] loop0: detected capacity change from 0 to 8192 [ 86.816533][ T5130] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 86.829600][ T5130] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 86.839007][ T5130] REISERFS (device loop0): using ordered data mode [ 86.845790][ T5130] reiserfs: using flush barriers [pid 5130] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5130] chdir("./file0") = 0 [pid 5130] ioctl(4, LOOP_CLR_FD) = 0 [pid 5130] close(4) = 0 [pid 5130] mkdir(".", 0777) = -1 EEXIST (File exists) [ 86.852451][ T5130] 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 [ 86.869009][ T5130] REISERFS (device loop0): checking transaction log (loop0) [ 86.877438][ T5130] REISERFS (device loop0): Using r5 hash to sort names [ 86.897388][ T5130] reiserfs: enabling write barrier flush mode [pid 5130] mount(NULL, ".", 0x200000c0, 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 5130] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5130] chdir(".") = 0 [pid 5130] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5130] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5130] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5130] close(3) = 0 [pid 5130] close(4) = 0 [pid 5130] close(5) = 0 [pid 5130] close(6) = -1 EBADF (Bad file descriptor) [pid 5130] close(7) = -1 EBADF (Bad file descriptor) [pid 5130] close(8) = -1 EBADF (Bad file descriptor) [pid 5130] close(9) = -1 EBADF (Bad file descriptor) [pid 5130] close(10) = -1 EBADF (Bad file descriptor) [pid 5130] close(11) = -1 EBADF (Bad file descriptor) [pid 5130] close(12) = -1 EBADF (Bad file descriptor) [pid 5130] close(13) = -1 EBADF (Bad file descriptor) [pid 5130] close(14) = -1 EBADF (Bad file descriptor) [pid 5130] close(15) = -1 EBADF (Bad file descriptor) [pid 5130] close(16) = -1 EBADF (Bad file descriptor) [pid 5130] close(17) = -1 EBADF (Bad file descriptor) [pid 5130] close(18) = -1 EBADF (Bad file descriptor) [pid 5130] close(19) = -1 EBADF (Bad file descriptor) [pid 5130] close(20) = -1 EBADF (Bad file descriptor) [pid 5130] close(21) = -1 EBADF (Bad file descriptor) [pid 5130] close(22) = -1 EBADF (Bad file descriptor) [pid 5130] close(23) = -1 EBADF (Bad file descriptor) [pid 5130] close(24) = -1 EBADF (Bad file descriptor) [pid 5130] close(25) = -1 EBADF (Bad file descriptor) [pid 5130] close(26) = -1 EBADF (Bad file descriptor) [pid 5130] close(27) = -1 EBADF (Bad file descriptor) [pid 5130] close(28) = -1 EBADF (Bad file descriptor) [pid 5130] close(29) = -1 EBADF (Bad file descriptor) [pid 5130] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=46, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./44/binderfs") = 0 [ 86.910574][ T5130] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./44/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./44") = 0 [pid 5039] mkdir("./45", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5133 attached , child_tidptr=0x555555e46650) = 47 [pid 5133] set_robust_list(0x555555e46660, 24) = 0 [pid 5133] chdir("./45") = 0 [pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5133] setpgid(0, 0) = 0 [pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5133] write(3, "1000", 4) = 4 [pid 5133] close(3) = 0 [pid 5133] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5133] memfd_create("syzkaller", 0) = 3 [pid 5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5133] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5133] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5133] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5133] close(3) = 0 [pid 5133] mkdir("./file0", 0777) = 0 [ 87.076267][ T5133] loop0: detected capacity change from 0 to 8192 [ 87.087442][ T5133] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.100645][ T5133] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 87.109930][ T5133] REISERFS (device loop0): using ordered data mode [ 87.116473][ T5133] reiserfs: using flush barriers [pid 5133] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5133] chdir("./file0") = 0 [pid 5133] ioctl(4, LOOP_CLR_FD) = 0 [pid 5133] close(4) = 0 [ 87.122781][ T5133] 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 [ 87.139474][ T5133] REISERFS (device loop0): checking transaction log (loop0) [ 87.147887][ T5133] REISERFS (device loop0): Using r5 hash to sort names [pid 5133] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5133] mount(NULL, ".", 0x200000c0, 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 5133] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5133] chdir(".") = 0 [pid 5133] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5133] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5133] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5133] close(3) = 0 [pid 5133] close(4) = 0 [pid 5133] close(5) = 0 [pid 5133] close(6) = -1 EBADF (Bad file descriptor) [pid 5133] close(7) = -1 EBADF (Bad file descriptor) [pid 5133] close(8) = -1 EBADF (Bad file descriptor) [pid 5133] close(9) = -1 EBADF (Bad file descriptor) [pid 5133] close(10) = -1 EBADF (Bad file descriptor) [pid 5133] close(11) = -1 EBADF (Bad file descriptor) [pid 5133] close(12) = -1 EBADF (Bad file descriptor) [pid 5133] close(13) = -1 EBADF (Bad file descriptor) [pid 5133] close(14) = -1 EBADF (Bad file descriptor) [pid 5133] close(15) = -1 EBADF (Bad file descriptor) [pid 5133] close(16) = -1 EBADF (Bad file descriptor) [pid 5133] close(17) = -1 EBADF (Bad file descriptor) [pid 5133] close(18) = -1 EBADF (Bad file descriptor) [pid 5133] close(19) = -1 EBADF (Bad file descriptor) [pid 5133] close(20) = -1 EBADF (Bad file descriptor) [pid 5133] close(21) = -1 EBADF (Bad file descriptor) [pid 5133] close(22) = -1 EBADF (Bad file descriptor) [pid 5133] close(23) = -1 EBADF (Bad file descriptor) [pid 5133] close(24) = -1 EBADF (Bad file descriptor) [pid 5133] close(25) = -1 EBADF (Bad file descriptor) [pid 5133] close(26) = -1 EBADF (Bad file descriptor) [pid 5133] close(27) = -1 EBADF (Bad file descriptor) [pid 5133] close(28) = -1 EBADF (Bad file descriptor) [pid 5133] close(29) = -1 EBADF (Bad file descriptor) [pid 5133] exit_group(0) = ? [pid 5133] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=47, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./45/binderfs") = 0 [ 87.171522][ T5133] reiserfs: enabling write barrier flush mode [ 87.183061][ T5133] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./45/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./45") = 0 [pid 5039] mkdir("./46", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached , child_tidptr=0x555555e46650) = 48 [pid 5135] set_robust_list(0x555555e46660, 24) = 0 [pid 5135] chdir("./46") = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5135] memfd_create("syzkaller", 0) = 3 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5135] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5135] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5135] close(3) = 0 [pid 5135] mkdir("./file0", 0777) = 0 [ 87.331500][ T5135] loop0: detected capacity change from 0 to 8192 [ 87.341455][ T5135] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.354944][ T5135] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 87.364186][ T5135] REISERFS (device loop0): using ordered data mode [ 87.370767][ T5135] reiserfs: using flush barriers [pid 5135] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5135] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5135] chdir("./file0") = 0 [pid 5135] ioctl(4, LOOP_CLR_FD) = 0 [pid 5135] close(4) = 0 [pid 5135] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5135] mount(NULL, ".", 0x200000c0, MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_SILENT|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = 0 [ 87.377153][ T5135] 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 [ 87.393837][ T5135] REISERFS (device loop0): checking transaction log (loop0) [ 87.402073][ T5135] REISERFS (device loop0): Using r5 hash to sort names [ 87.414381][ T5135] reiserfs: enabling write barrier flush mode [pid 5135] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5135] chdir(".") = 0 [pid 5135] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5135] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5135] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5135] close(3) = 0 [pid 5135] close(4) = 0 [pid 5135] close(5) = 0 [pid 5135] close(6) = -1 EBADF (Bad file descriptor) [pid 5135] close(7) = -1 EBADF (Bad file descriptor) [pid 5135] close(8) = -1 EBADF (Bad file descriptor) [pid 5135] close(9) = -1 EBADF (Bad file descriptor) [pid 5135] close(10) = -1 EBADF (Bad file descriptor) [pid 5135] close(11) = -1 EBADF (Bad file descriptor) [pid 5135] close(12) = -1 EBADF (Bad file descriptor) [pid 5135] close(13) = -1 EBADF (Bad file descriptor) [pid 5135] close(14) = -1 EBADF (Bad file descriptor) [pid 5135] close(15) = -1 EBADF (Bad file descriptor) [pid 5135] close(16) = -1 EBADF (Bad file descriptor) [pid 5135] close(17) = -1 EBADF (Bad file descriptor) [pid 5135] close(18) = -1 EBADF (Bad file descriptor) [pid 5135] close(19) = -1 EBADF (Bad file descriptor) [pid 5135] close(20) = -1 EBADF (Bad file descriptor) [pid 5135] close(21) = -1 EBADF (Bad file descriptor) [pid 5135] close(22) = -1 EBADF (Bad file descriptor) [pid 5135] close(23) = -1 EBADF (Bad file descriptor) [pid 5135] close(24) = -1 EBADF (Bad file descriptor) [pid 5135] close(25) = -1 EBADF (Bad file descriptor) [pid 5135] close(26) = -1 EBADF (Bad file descriptor) [pid 5135] close(27) = -1 EBADF (Bad file descriptor) [pid 5135] close(28) = -1 EBADF (Bad file descriptor) [pid 5135] close(29) = -1 EBADF (Bad file descriptor) [pid 5135] exit_group(0) = ? [pid 5135] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=48, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./46/binderfs") = 0 [ 87.423211][ T5135] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./46/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./46/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./46") = 0 [pid 5039] mkdir("./47", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 49 ./strace-static-x86_64: Process 5137 attached [pid 5137] set_robust_list(0x555555e46660, 24) = 0 [pid 5137] chdir("./47") = 0 [pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5137] setpgid(0, 0) = 0 [pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5137] write(3, "1000", 4) = 4 [pid 5137] close(3) = 0 [pid 5137] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5137] memfd_create("syzkaller", 0) = 3 [pid 5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5137] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5137] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5137] close(3) = 0 [pid 5137] mkdir("./file0", 0777) = 0 [ 87.597951][ T5137] loop0: detected capacity change from 0 to 8192 [ 87.608464][ T5137] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.621489][ T5137] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 87.630874][ T5137] REISERFS (device loop0): using ordered data mode [ 87.637465][ T5137] reiserfs: using flush barriers [pid 5137] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5137] chdir("./file0") = 0 [pid 5137] ioctl(4, LOOP_CLR_FD) = 0 [pid 5137] close(4) = 0 [pid 5137] mkdir(".", 0777) = -1 EEXIST (File exists) [ 87.643858][ T5137] 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 [ 87.660566][ T5137] REISERFS (device loop0): checking transaction log (loop0) [ 87.669000][ T5137] REISERFS (device loop0): Using r5 hash to sort names [ 87.690736][ T5137] reiserfs: enabling write barrier flush mode [pid 5137] mount(NULL, ".", 0x200000c0, 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 5137] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5137] chdir(".") = 0 [pid 5137] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5137] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5137] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5137] close(3) = 0 [pid 5137] close(4) = 0 [pid 5137] close(5) = 0 [pid 5137] close(6) = -1 EBADF (Bad file descriptor) [pid 5137] close(7) = -1 EBADF (Bad file descriptor) [pid 5137] close(8) = -1 EBADF (Bad file descriptor) [pid 5137] close(9) = -1 EBADF (Bad file descriptor) [pid 5137] close(10) = -1 EBADF (Bad file descriptor) [pid 5137] close(11) = -1 EBADF (Bad file descriptor) [pid 5137] close(12) = -1 EBADF (Bad file descriptor) [pid 5137] close(13) = -1 EBADF (Bad file descriptor) [pid 5137] close(14) = -1 EBADF (Bad file descriptor) [pid 5137] close(15) = -1 EBADF (Bad file descriptor) [pid 5137] close(16) = -1 EBADF (Bad file descriptor) [pid 5137] close(17) = -1 EBADF (Bad file descriptor) [pid 5137] close(18) = -1 EBADF (Bad file descriptor) [pid 5137] close(19) = -1 EBADF (Bad file descriptor) [pid 5137] close(20) = -1 EBADF (Bad file descriptor) [pid 5137] close(21) = -1 EBADF (Bad file descriptor) [pid 5137] close(22) = -1 EBADF (Bad file descriptor) [pid 5137] close(23) = -1 EBADF (Bad file descriptor) [pid 5137] close(24) = -1 EBADF (Bad file descriptor) [pid 5137] close(25) = -1 EBADF (Bad file descriptor) [pid 5137] close(26) = -1 EBADF (Bad file descriptor) [pid 5137] close(27) = -1 EBADF (Bad file descriptor) [pid 5137] close(28) = -1 EBADF (Bad file descriptor) [pid 5137] close(29) = -1 EBADF (Bad file descriptor) [pid 5137] exit_group(0) = ? [pid 5137] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=49, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./47/binderfs") = 0 [ 87.701226][ T5137] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./47/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./47") = 0 [pid 5039] mkdir("./48", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached , child_tidptr=0x555555e46650) = 50 [pid 5139] set_robust_list(0x555555e46660, 24) = 0 [pid 5139] chdir("./48") = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5139] setpgid(0, 0) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5139] write(3, "1000", 4) = 4 [pid 5139] close(3) = 0 [pid 5139] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5139] memfd_create("syzkaller", 0) = 3 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5139] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5139] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5139] close(3) = 0 [pid 5139] mkdir("./file0", 0777) = 0 [ 87.869776][ T5139] loop0: detected capacity change from 0 to 8192 [ 87.880159][ T5139] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 87.893673][ T5139] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 87.903297][ T5139] REISERFS (device loop0): using ordered data mode [ 87.909916][ T5139] reiserfs: using flush barriers [pid 5139] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5139] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5139] chdir("./file0") = 0 [pid 5139] ioctl(4, LOOP_CLR_FD) = 0 [pid 5139] close(4) = 0 [pid 5139] mkdir(".", 0777) = -1 EEXIST (File exists) [ 87.916554][ T5139] 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 [ 87.933221][ T5139] REISERFS (device loop0): checking transaction log (loop0) [ 87.942054][ T5139] REISERFS (device loop0): Using r5 hash to sort names [ 87.954501][ T5139] reiserfs: enabling write barrier flush mode [pid 5139] mount(NULL, ".", 0x200000c0, 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 5139] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5139] chdir(".") = 0 [pid 5139] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5139] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5139] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5139] close(3) = 0 [pid 5139] close(4) = 0 [pid 5139] close(5) = 0 [pid 5139] close(6) = -1 EBADF (Bad file descriptor) [pid 5139] close(7) = -1 EBADF (Bad file descriptor) [pid 5139] close(8) = -1 EBADF (Bad file descriptor) [pid 5139] close(9) = -1 EBADF (Bad file descriptor) [pid 5139] close(10) = -1 EBADF (Bad file descriptor) [pid 5139] close(11) = -1 EBADF (Bad file descriptor) [pid 5139] close(12) = -1 EBADF (Bad file descriptor) [pid 5139] close(13) = -1 EBADF (Bad file descriptor) [pid 5139] close(14) = -1 EBADF (Bad file descriptor) [pid 5139] close(15) = -1 EBADF (Bad file descriptor) [pid 5139] close(16) = -1 EBADF (Bad file descriptor) [pid 5139] close(17) = -1 EBADF (Bad file descriptor) [pid 5139] close(18) = -1 EBADF (Bad file descriptor) [pid 5139] close(19) = -1 EBADF (Bad file descriptor) [pid 5139] close(20) = -1 EBADF (Bad file descriptor) [pid 5139] close(21) = -1 EBADF (Bad file descriptor) [pid 5139] close(22) = -1 EBADF (Bad file descriptor) [pid 5139] close(23) = -1 EBADF (Bad file descriptor) [pid 5139] close(24) = -1 EBADF (Bad file descriptor) [pid 5139] close(25) = -1 EBADF (Bad file descriptor) [pid 5139] close(26) = -1 EBADF (Bad file descriptor) [pid 5139] close(27) = -1 EBADF (Bad file descriptor) [pid 5139] close(28) = -1 EBADF (Bad file descriptor) [pid 5139] close(29) = -1 EBADF (Bad file descriptor) [pid 5139] exit_group(0) = ? [pid 5139] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=50, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./48/binderfs") = 0 [ 87.965726][ T5139] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./48/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./48/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./48") = 0 [pid 5039] mkdir("./49", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 51 ./strace-static-x86_64: Process 5141 attached [pid 5141] set_robust_list(0x555555e46660, 24) = 0 [pid 5141] chdir("./49") = 0 [pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5141] setpgid(0, 0) = 0 [pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5141] write(3, "1000", 4) = 4 [pid 5141] close(3) = 0 [pid 5141] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5141] memfd_create("syzkaller", 0) = 3 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5141] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5141] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5141] close(3) = 0 [pid 5141] mkdir("./file0", 0777) = 0 [ 88.140162][ T5141] loop0: detected capacity change from 0 to 8192 [ 88.152189][ T5141] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.165284][ T5141] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 88.174487][ T5141] REISERFS (device loop0): using ordered data mode [ 88.181110][ T5141] reiserfs: using flush barriers [pid 5141] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5141] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5141] chdir("./file0") = 0 [pid 5141] ioctl(4, LOOP_CLR_FD) = 0 [pid 5141] close(4) = 0 [pid 5141] mkdir(".", 0777) = -1 EEXIST (File exists) [ 88.187520][ T5141] 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 [ 88.204256][ T5141] REISERFS (device loop0): checking transaction log (loop0) [ 88.212496][ T5141] REISERFS (device loop0): Using r5 hash to sort names [pid 5141] mount(NULL, ".", 0x200000c0, 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 5141] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5141] chdir(".") = 0 [pid 5141] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5141] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5141] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5141] close(3) = 0 [pid 5141] close(4) = 0 [pid 5141] close(5) = 0 [pid 5141] close(6) = -1 EBADF (Bad file descriptor) [pid 5141] close(7) = -1 EBADF (Bad file descriptor) [pid 5141] close(8) = -1 EBADF (Bad file descriptor) [pid 5141] close(9) = -1 EBADF (Bad file descriptor) [pid 5141] close(10) = -1 EBADF (Bad file descriptor) [pid 5141] close(11) = -1 EBADF (Bad file descriptor) [pid 5141] close(12) = -1 EBADF (Bad file descriptor) [pid 5141] close(13) = -1 EBADF (Bad file descriptor) [pid 5141] close(14) = -1 EBADF (Bad file descriptor) [pid 5141] close(15) = -1 EBADF (Bad file descriptor) [pid 5141] close(16) = -1 EBADF (Bad file descriptor) [pid 5141] close(17) = -1 EBADF (Bad file descriptor) [pid 5141] close(18) = -1 EBADF (Bad file descriptor) [pid 5141] close(19) = -1 EBADF (Bad file descriptor) [pid 5141] close(20) = -1 EBADF (Bad file descriptor) [pid 5141] close(21) = -1 EBADF (Bad file descriptor) [pid 5141] close(22) = -1 EBADF (Bad file descriptor) [pid 5141] close(23) = -1 EBADF (Bad file descriptor) [pid 5141] close(24) = -1 EBADF (Bad file descriptor) [pid 5141] close(25) = -1 EBADF (Bad file descriptor) [pid 5141] close(26) = -1 EBADF (Bad file descriptor) [pid 5141] close(27) = -1 EBADF (Bad file descriptor) [pid 5141] close(28) = -1 EBADF (Bad file descriptor) [pid 5141] close(29) = -1 EBADF (Bad file descriptor) [pid 5141] exit_group(0) = ? [pid 5141] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=51, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./49/binderfs") = 0 [ 88.235920][ T5141] reiserfs: enabling write barrier flush mode [ 88.247879][ T5141] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./49/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./49/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./49") = 0 [pid 5039] mkdir("./50", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 52 ./strace-static-x86_64: Process 5143 attached [pid 5143] set_robust_list(0x555555e46660, 24) = 0 [pid 5143] chdir("./50") = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5143] memfd_create("syzkaller", 0) = 3 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5143] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5143] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5143] close(3) = 0 [pid 5143] mkdir("./file0", 0777) = 0 [ 88.435483][ T5143] loop0: detected capacity change from 0 to 8192 [ 88.446097][ T5143] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.459142][ T5143] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 88.468416][ T5143] REISERFS (device loop0): using ordered data mode [ 88.474965][ T5143] reiserfs: using flush barriers [pid 5143] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5143] chdir("./file0") = 0 [pid 5143] ioctl(4, LOOP_CLR_FD) = 0 [pid 5143] close(4) = 0 [pid 5143] mkdir(".", 0777) = -1 EEXIST (File exists) [ 88.481444][ T5143] 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 [ 88.498118][ T5143] REISERFS (device loop0): checking transaction log (loop0) [ 88.506396][ T5143] REISERFS (device loop0): Using r5 hash to sort names [ 88.519090][ T5143] reiserfs: enabling write barrier flush mode [pid 5143] mount(NULL, ".", 0x200000c0, 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 5143] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5143] chdir(".") = 0 [pid 5143] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5143] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5143] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5143] close(3) = 0 [pid 5143] close(4) = 0 [pid 5143] close(5) = 0 [pid 5143] close(6) = -1 EBADF (Bad file descriptor) [pid 5143] close(7) = -1 EBADF (Bad file descriptor) [pid 5143] close(8) = -1 EBADF (Bad file descriptor) [pid 5143] close(9) = -1 EBADF (Bad file descriptor) [pid 5143] close(10) = -1 EBADF (Bad file descriptor) [pid 5143] close(11) = -1 EBADF (Bad file descriptor) [pid 5143] close(12) = -1 EBADF (Bad file descriptor) [pid 5143] close(13) = -1 EBADF (Bad file descriptor) [pid 5143] close(14) = -1 EBADF (Bad file descriptor) [pid 5143] close(15) = -1 EBADF (Bad file descriptor) [pid 5143] close(16) = -1 EBADF (Bad file descriptor) [pid 5143] close(17) = -1 EBADF (Bad file descriptor) [pid 5143] close(18) = -1 EBADF (Bad file descriptor) [pid 5143] close(19) = -1 EBADF (Bad file descriptor) [pid 5143] close(20) = -1 EBADF (Bad file descriptor) [pid 5143] close(21) = -1 EBADF (Bad file descriptor) [pid 5143] close(22) = -1 EBADF (Bad file descriptor) [pid 5143] close(23) = -1 EBADF (Bad file descriptor) [pid 5143] close(24) = -1 EBADF (Bad file descriptor) [pid 5143] close(25) = -1 EBADF (Bad file descriptor) [pid 5143] close(26) = -1 EBADF (Bad file descriptor) [pid 5143] close(27) = -1 EBADF (Bad file descriptor) [pid 5143] close(28) = -1 EBADF (Bad file descriptor) [pid 5143] close(29) = -1 EBADF (Bad file descriptor) [pid 5143] exit_group(0) = ? [pid 5143] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=52, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 88.529897][ T5143] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./50/binderfs") = 0 [pid 5039] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./50/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./50") = 0 [pid 5039] mkdir("./51", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5145 attached , child_tidptr=0x555555e46650) = 53 [pid 5145] set_robust_list(0x555555e46660, 24) = 0 [pid 5145] chdir("./51") = 0 [pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5145] setpgid(0, 0) = 0 [pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5145] write(3, "1000", 4) = 4 [pid 5145] close(3) = 0 [pid 5145] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5145] memfd_create("syzkaller", 0) = 3 [pid 5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5145] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5145] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5145] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5145] close(3) = 0 [pid 5145] mkdir("./file0", 0777) = 0 [ 88.728597][ T5145] loop0: detected capacity change from 0 to 8192 [ 88.739944][ T5145] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 88.753042][ T5145] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 88.762470][ T5145] REISERFS (device loop0): using ordered data mode [ 88.769026][ T5145] reiserfs: using flush barriers [pid 5145] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5145] chdir("./file0") = 0 [pid 5145] ioctl(4, LOOP_CLR_FD) = 0 [pid 5145] close(4) = 0 [pid 5145] mkdir(".", 0777) = -1 EEXIST (File exists) [ 88.775563][ T5145] 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 [ 88.792109][ T5145] REISERFS (device loop0): checking transaction log (loop0) [ 88.800870][ T5145] REISERFS (device loop0): Using r5 hash to sort names [ 88.816318][ T5145] reiserfs: enabling write barrier flush mode [pid 5145] mount(NULL, ".", 0x200000c0, 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 5145] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5145] chdir(".") = 0 [pid 5145] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5145] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5145] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5145] close(3) = 0 [pid 5145] close(4) = 0 [pid 5145] close(5) = 0 [pid 5145] close(6) = -1 EBADF (Bad file descriptor) [pid 5145] close(7) = -1 EBADF (Bad file descriptor) [pid 5145] close(8) = -1 EBADF (Bad file descriptor) [pid 5145] close(9) = -1 EBADF (Bad file descriptor) [pid 5145] close(10) = -1 EBADF (Bad file descriptor) [pid 5145] close(11) = -1 EBADF (Bad file descriptor) [pid 5145] close(12) = -1 EBADF (Bad file descriptor) [pid 5145] close(13) = -1 EBADF (Bad file descriptor) [pid 5145] close(14) = -1 EBADF (Bad file descriptor) [pid 5145] close(15) = -1 EBADF (Bad file descriptor) [pid 5145] close(16) = -1 EBADF (Bad file descriptor) [pid 5145] close(17) = -1 EBADF (Bad file descriptor) [pid 5145] close(18) = -1 EBADF (Bad file descriptor) [pid 5145] close(19) = -1 EBADF (Bad file descriptor) [pid 5145] close(20) = -1 EBADF (Bad file descriptor) [pid 5145] close(21) = -1 EBADF (Bad file descriptor) [pid 5145] close(22) = -1 EBADF (Bad file descriptor) [pid 5145] close(23) = -1 EBADF (Bad file descriptor) [pid 5145] close(24) = -1 EBADF (Bad file descriptor) [pid 5145] close(25) = -1 EBADF (Bad file descriptor) [pid 5145] close(26) = -1 EBADF (Bad file descriptor) [pid 5145] close(27) = -1 EBADF (Bad file descriptor) [pid 5145] close(28) = -1 EBADF (Bad file descriptor) [pid 5145] close(29) = -1 EBADF (Bad file descriptor) [pid 5145] exit_group(0) = ? [pid 5145] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=53, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./51/binderfs") = 0 [ 88.826021][ T5145] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./51/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./51") = 0 [pid 5039] mkdir("./52", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 54 ./strace-static-x86_64: Process 5147 attached [pid 5147] set_robust_list(0x555555e46660, 24) = 0 [pid 5147] chdir("./52") = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5147] setpgid(0, 0) = 0 [pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5147] write(3, "1000", 4) = 4 [pid 5147] close(3) = 0 [pid 5147] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5147] memfd_create("syzkaller", 0) = 3 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5147] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5147] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5147] close(3) = 0 [pid 5147] mkdir("./file0", 0777) = 0 [ 89.011722][ T5147] loop0: detected capacity change from 0 to 8192 [ 89.023573][ T5147] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.036642][ T5147] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 89.045954][ T5147] REISERFS (device loop0): using ordered data mode [ 89.052481][ T5147] reiserfs: using flush barriers [pid 5147] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5147] chdir("./file0") = 0 [pid 5147] ioctl(4, LOOP_CLR_FD) = 0 [pid 5147] close(4) = 0 [pid 5147] mkdir(".", 0777) = -1 EEXIST (File exists) [ 89.059101][ T5147] 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 [ 89.076073][ T5147] REISERFS (device loop0): checking transaction log (loop0) [ 89.084366][ T5147] REISERFS (device loop0): Using r5 hash to sort names [ 89.097138][ T5147] reiserfs: enabling write barrier flush mode [pid 5147] mount(NULL, ".", 0x200000c0, 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 5147] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5147] chdir(".") = 0 [pid 5147] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5147] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5147] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5147] close(3) = 0 [pid 5147] close(4) = 0 [pid 5147] close(5) = 0 [pid 5147] close(6) = -1 EBADF (Bad file descriptor) [pid 5147] close(7) = -1 EBADF (Bad file descriptor) [pid 5147] close(8) = -1 EBADF (Bad file descriptor) [pid 5147] close(9) = -1 EBADF (Bad file descriptor) [pid 5147] close(10) = -1 EBADF (Bad file descriptor) [pid 5147] close(11) = -1 EBADF (Bad file descriptor) [pid 5147] close(12) = -1 EBADF (Bad file descriptor) [pid 5147] close(13) = -1 EBADF (Bad file descriptor) [pid 5147] close(14) = -1 EBADF (Bad file descriptor) [pid 5147] close(15) = -1 EBADF (Bad file descriptor) [pid 5147] close(16) = -1 EBADF (Bad file descriptor) [pid 5147] close(17) = -1 EBADF (Bad file descriptor) [pid 5147] close(18) = -1 EBADF (Bad file descriptor) [pid 5147] close(19) = -1 EBADF (Bad file descriptor) [pid 5147] close(20) = -1 EBADF (Bad file descriptor) [pid 5147] close(21) = -1 EBADF (Bad file descriptor) [pid 5147] close(22) = -1 EBADF (Bad file descriptor) [pid 5147] close(23) = -1 EBADF (Bad file descriptor) [pid 5147] close(24) = -1 EBADF (Bad file descriptor) [pid 5147] close(25) = -1 EBADF (Bad file descriptor) [pid 5147] close(26) = -1 EBADF (Bad file descriptor) [pid 5147] close(27) = -1 EBADF (Bad file descriptor) [pid 5147] close(28) = -1 EBADF (Bad file descriptor) [pid 5147] close(29) = -1 EBADF (Bad file descriptor) [pid 5147] exit_group(0) = ? [pid 5147] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=54, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./52/binderfs") = 0 [ 89.108786][ T5147] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./52/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./52") = 0 [pid 5039] mkdir("./53", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached , child_tidptr=0x555555e46650) = 55 [pid 5149] set_robust_list(0x555555e46660, 24) = 0 [pid 5149] chdir("./53") = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5149] write(3, "1000", 4) = 4 [pid 5149] close(3) = 0 [pid 5149] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5149] memfd_create("syzkaller", 0) = 3 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5149] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5149] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5149] close(3) = 0 [pid 5149] mkdir("./file0", 0777) = 0 [ 89.292605][ T5149] loop0: detected capacity change from 0 to 8192 [ 89.303375][ T5149] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.316607][ T5149] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 89.326119][ T5149] REISERFS (device loop0): using ordered data mode [ 89.332816][ T5149] reiserfs: using flush barriers [pid 5149] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5149] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5149] chdir("./file0") = 0 [pid 5149] ioctl(4, LOOP_CLR_FD) = 0 [pid 5149] close(4) = 0 [pid 5149] mkdir(".", 0777) = -1 EEXIST (File exists) [ 89.339601][ T5149] 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 [ 89.356243][ T5149] REISERFS (device loop0): checking transaction log (loop0) [ 89.364678][ T5149] REISERFS (device loop0): Using r5 hash to sort names [ 89.374771][ T5149] reiserfs: enabling write barrier flush mode [pid 5149] mount(NULL, ".", 0x200000c0, 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 5149] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5149] chdir(".") = 0 [pid 5149] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5149] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5149] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5149] close(3) = 0 [pid 5149] close(4) = 0 [pid 5149] close(5) = 0 [pid 5149] close(6) = -1 EBADF (Bad file descriptor) [pid 5149] close(7) = -1 EBADF (Bad file descriptor) [pid 5149] close(8) = -1 EBADF (Bad file descriptor) [pid 5149] close(9) = -1 EBADF (Bad file descriptor) [pid 5149] close(10) = -1 EBADF (Bad file descriptor) [pid 5149] close(11) = -1 EBADF (Bad file descriptor) [pid 5149] close(12) = -1 EBADF (Bad file descriptor) [pid 5149] close(13) = -1 EBADF (Bad file descriptor) [pid 5149] close(14) = -1 EBADF (Bad file descriptor) [pid 5149] close(15) = -1 EBADF (Bad file descriptor) [pid 5149] close(16) = -1 EBADF (Bad file descriptor) [pid 5149] close(17) = -1 EBADF (Bad file descriptor) [pid 5149] close(18) = -1 EBADF (Bad file descriptor) [pid 5149] close(19) = -1 EBADF (Bad file descriptor) [pid 5149] close(20) = -1 EBADF (Bad file descriptor) [pid 5149] close(21) = -1 EBADF (Bad file descriptor) [pid 5149] close(22) = -1 EBADF (Bad file descriptor) [pid 5149] close(23) = -1 EBADF (Bad file descriptor) [pid 5149] close(24) = -1 EBADF (Bad file descriptor) [pid 5149] close(25) = -1 EBADF (Bad file descriptor) [pid 5149] close(26) = -1 EBADF (Bad file descriptor) [pid 5149] close(27) = -1 EBADF (Bad file descriptor) [pid 5149] close(28) = -1 EBADF (Bad file descriptor) [pid 5149] close(29) = -1 EBADF (Bad file descriptor) [pid 5149] exit_group(0) = ? [pid 5149] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=55, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./53/binderfs") = 0 [ 89.384787][ T5149] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./53/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./53") = 0 [pid 5039] mkdir("./54", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 56 ./strace-static-x86_64: Process 5151 attached [pid 5151] set_robust_list(0x555555e46660, 24) = 0 [pid 5151] chdir("./54") = 0 [pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5151] setpgid(0, 0) = 0 [pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5151] write(3, "1000", 4) = 4 [pid 5151] close(3) = 0 [pid 5151] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5151] memfd_create("syzkaller", 0) = 3 [pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5151] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5151] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5151] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5151] close(3) = 0 [pid 5151] mkdir("./file0", 0777) = 0 [ 89.553726][ T5151] loop0: detected capacity change from 0 to 8192 [ 89.567446][ T5151] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.580642][ T5151] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 89.590060][ T5151] REISERFS (device loop0): using ordered data mode [ 89.596639][ T5151] reiserfs: using flush barriers [pid 5151] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5151] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5151] chdir("./file0") = 0 [pid 5151] ioctl(4, LOOP_CLR_FD) = 0 [pid 5151] close(4) = 0 [pid 5151] mkdir(".", 0777) = -1 EEXIST (File exists) [ 89.603082][ T5151] 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 [ 89.620139][ T5151] REISERFS (device loop0): checking transaction log (loop0) [ 89.628804][ T5151] REISERFS (device loop0): Using r5 hash to sort names [ 89.646635][ T5151] reiserfs: enabling write barrier flush mode [pid 5151] mount(NULL, ".", 0x200000c0, 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 5151] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5151] chdir(".") = 0 [pid 5151] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5151] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5151] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5151] close(3) = 0 [pid 5151] close(4) = 0 [pid 5151] close(5) = 0 [pid 5151] close(6) = -1 EBADF (Bad file descriptor) [pid 5151] close(7) = -1 EBADF (Bad file descriptor) [pid 5151] close(8) = -1 EBADF (Bad file descriptor) [pid 5151] close(9) = -1 EBADF (Bad file descriptor) [pid 5151] close(10) = -1 EBADF (Bad file descriptor) [pid 5151] close(11) = -1 EBADF (Bad file descriptor) [pid 5151] close(12) = -1 EBADF (Bad file descriptor) [pid 5151] close(13) = -1 EBADF (Bad file descriptor) [pid 5151] close(14) = -1 EBADF (Bad file descriptor) [pid 5151] close(15) = -1 EBADF (Bad file descriptor) [pid 5151] close(16) = -1 EBADF (Bad file descriptor) [pid 5151] close(17) = -1 EBADF (Bad file descriptor) [pid 5151] close(18) = -1 EBADF (Bad file descriptor) [pid 5151] close(19) = -1 EBADF (Bad file descriptor) [pid 5151] close(20) = -1 EBADF (Bad file descriptor) [pid 5151] close(21) = -1 EBADF (Bad file descriptor) [pid 5151] close(22) = -1 EBADF (Bad file descriptor) [pid 5151] close(23) = -1 EBADF (Bad file descriptor) [pid 5151] close(24) = -1 EBADF (Bad file descriptor) [pid 5151] close(25) = -1 EBADF (Bad file descriptor) [pid 5151] close(26) = -1 EBADF (Bad file descriptor) [pid 5151] close(27) = -1 EBADF (Bad file descriptor) [pid 5151] close(28) = -1 EBADF (Bad file descriptor) [pid 5151] close(29) = -1 EBADF (Bad file descriptor) [pid 5151] exit_group(0) = ? [pid 5151] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=56, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./54/binderfs") = 0 [ 89.657584][ T5151] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./54/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./54") = 0 [pid 5039] mkdir("./55", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 57 ./strace-static-x86_64: Process 5153 attached [pid 5153] set_robust_list(0x555555e46660, 24) = 0 [pid 5153] chdir("./55") = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] setpgid(0, 0) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5153] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5153] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5153] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5153] close(3) = 0 [pid 5153] mkdir("./file0", 0777) = 0 [ 89.842873][ T5153] loop0: detected capacity change from 0 to 8192 [ 89.854209][ T5153] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 89.867555][ T5153] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 89.876974][ T5153] REISERFS (device loop0): using ordered data mode [ 89.883499][ T5153] reiserfs: using flush barriers [pid 5153] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5153] chdir("./file0") = 0 [pid 5153] ioctl(4, LOOP_CLR_FD) = 0 [pid 5153] close(4) = 0 [pid 5153] mkdir(".", 0777) = -1 EEXIST (File exists) [ 89.890169][ T5153] 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 [ 89.906779][ T5153] REISERFS (device loop0): checking transaction log (loop0) [ 89.915441][ T5153] REISERFS (device loop0): Using r5 hash to sort names [pid 5153] mount(NULL, ".", 0x200000c0, 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 5153] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5153] chdir(".") = 0 [pid 5153] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5153] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5153] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5153] close(3) = 0 [pid 5153] close(4) = 0 [pid 5153] close(5) = 0 [pid 5153] close(6) = -1 EBADF (Bad file descriptor) [pid 5153] close(7) = -1 EBADF (Bad file descriptor) [pid 5153] close(8) = -1 EBADF (Bad file descriptor) [pid 5153] close(9) = -1 EBADF (Bad file descriptor) [pid 5153] close(10) = -1 EBADF (Bad file descriptor) [pid 5153] close(11) = -1 EBADF (Bad file descriptor) [pid 5153] close(12) = -1 EBADF (Bad file descriptor) [pid 5153] close(13) = -1 EBADF (Bad file descriptor) [pid 5153] close(14) = -1 EBADF (Bad file descriptor) [pid 5153] close(15) = -1 EBADF (Bad file descriptor) [pid 5153] close(16) = -1 EBADF (Bad file descriptor) [pid 5153] close(17) = -1 EBADF (Bad file descriptor) [pid 5153] close(18) = -1 EBADF (Bad file descriptor) [pid 5153] close(19) = -1 EBADF (Bad file descriptor) [pid 5153] close(20) = -1 EBADF (Bad file descriptor) [pid 5153] close(21) = -1 EBADF (Bad file descriptor) [pid 5153] close(22) = -1 EBADF (Bad file descriptor) [pid 5153] close(23) = -1 EBADF (Bad file descriptor) [pid 5153] close(24) = -1 EBADF (Bad file descriptor) [pid 5153] close(25) = -1 EBADF (Bad file descriptor) [pid 5153] close(26) = -1 EBADF (Bad file descriptor) [pid 5153] close(27) = -1 EBADF (Bad file descriptor) [pid 5153] close(28) = -1 EBADF (Bad file descriptor) [pid 5153] close(29) = -1 EBADF (Bad file descriptor) [pid 5153] exit_group(0) = ? [pid 5153] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=57, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./55/binderfs") = 0 [ 89.940643][ T5153] reiserfs: enabling write barrier flush mode [ 89.954083][ T5153] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./55/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./55/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./55") = 0 [pid 5039] mkdir("./56", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5155 attached [pid 5155] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 58 [pid 5155] <... set_robust_list resumed>) = 0 [pid 5155] chdir("./56") = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5155] memfd_create("syzkaller", 0) = 3 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5155] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5155] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5155] close(3) = 0 [pid 5155] mkdir("./file0", 0777) = 0 [ 90.132077][ T5155] loop0: detected capacity change from 0 to 8192 [ 90.142978][ T5155] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.156055][ T5155] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 90.165352][ T5155] REISERFS (device loop0): using ordered data mode [ 90.171867][ T5155] reiserfs: using flush barriers [pid 5155] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5155] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5155] chdir("./file0") = 0 [pid 5155] ioctl(4, LOOP_CLR_FD) = 0 [pid 5155] close(4) = 0 [pid 5155] mkdir(".", 0777) = -1 EEXIST (File exists) [ 90.178430][ T5155] 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 [ 90.195136][ T5155] REISERFS (device loop0): checking transaction log (loop0) [ 90.203478][ T5155] REISERFS (device loop0): Using r5 hash to sort names [ 90.215840][ T5155] reiserfs: enabling write barrier flush mode [pid 5155] mount(NULL, ".", 0x200000c0, 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 5155] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5155] chdir(".") = 0 [pid 5155] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5155] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5155] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5155] close(3) = 0 [pid 5155] close(4) = 0 [pid 5155] close(5) = 0 [pid 5155] close(6) = -1 EBADF (Bad file descriptor) [pid 5155] close(7) = -1 EBADF (Bad file descriptor) [pid 5155] close(8) = -1 EBADF (Bad file descriptor) [pid 5155] close(9) = -1 EBADF (Bad file descriptor) [pid 5155] close(10) = -1 EBADF (Bad file descriptor) [pid 5155] close(11) = -1 EBADF (Bad file descriptor) [pid 5155] close(12) = -1 EBADF (Bad file descriptor) [pid 5155] close(13) = -1 EBADF (Bad file descriptor) [pid 5155] close(14) = -1 EBADF (Bad file descriptor) [pid 5155] close(15) = -1 EBADF (Bad file descriptor) [pid 5155] close(16) = -1 EBADF (Bad file descriptor) [pid 5155] close(17) = -1 EBADF (Bad file descriptor) [pid 5155] close(18) = -1 EBADF (Bad file descriptor) [pid 5155] close(19) = -1 EBADF (Bad file descriptor) [pid 5155] close(20) = -1 EBADF (Bad file descriptor) [pid 5155] close(21) = -1 EBADF (Bad file descriptor) [pid 5155] close(22) = -1 EBADF (Bad file descriptor) [pid 5155] close(23) = -1 EBADF (Bad file descriptor) [pid 5155] close(24) = -1 EBADF (Bad file descriptor) [pid 5155] close(25) = -1 EBADF (Bad file descriptor) [pid 5155] close(26) = -1 EBADF (Bad file descriptor) [pid 5155] close(27) = -1 EBADF (Bad file descriptor) [pid 5155] close(28) = -1 EBADF (Bad file descriptor) [pid 5155] close(29) = -1 EBADF (Bad file descriptor) [pid 5155] exit_group(0) = ? [pid 5155] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=58, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5039] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./56/binderfs") = 0 [ 90.225419][ T5155] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./56/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./56") = 0 [pid 5039] mkdir("./57", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached , child_tidptr=0x555555e46650) = 59 [pid 5157] set_robust_list(0x555555e46660, 24) = 0 [pid 5157] chdir("./57") = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5157] setpgid(0, 0) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5157] write(3, "1000", 4) = 4 [pid 5157] close(3) = 0 [pid 5157] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5157] memfd_create("syzkaller", 0) = 3 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5157] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5157] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5157] close(3) = 0 [pid 5157] mkdir("./file0", 0777) = 0 [ 90.379529][ T5157] loop0: detected capacity change from 0 to 8192 [ 90.390237][ T5157] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.403696][ T5157] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 90.413231][ T5157] REISERFS (device loop0): using ordered data mode [ 90.419787][ T5157] reiserfs: using flush barriers [pid 5157] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5157] chdir("./file0") = 0 [pid 5157] ioctl(4, LOOP_CLR_FD) = 0 [pid 5157] close(4) = 0 [pid 5157] mkdir(".", 0777) = -1 EEXIST (File exists) [ 90.426274][ T5157] 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 [ 90.442740][ T5157] REISERFS (device loop0): checking transaction log (loop0) [ 90.451169][ T5157] REISERFS (device loop0): Using r5 hash to sort names [ 90.462345][ T5157] reiserfs: enabling write barrier flush mode [pid 5157] mount(NULL, ".", 0x200000c0, 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 5157] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5157] chdir(".") = 0 [pid 5157] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5157] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5157] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5157] close(3) = 0 [pid 5157] close(4) = 0 [pid 5157] close(5) = 0 [pid 5157] close(6) = -1 EBADF (Bad file descriptor) [pid 5157] close(7) = -1 EBADF (Bad file descriptor) [pid 5157] close(8) = -1 EBADF (Bad file descriptor) [pid 5157] close(9) = -1 EBADF (Bad file descriptor) [pid 5157] close(10) = -1 EBADF (Bad file descriptor) [pid 5157] close(11) = -1 EBADF (Bad file descriptor) [pid 5157] close(12) = -1 EBADF (Bad file descriptor) [pid 5157] close(13) = -1 EBADF (Bad file descriptor) [pid 5157] close(14) = -1 EBADF (Bad file descriptor) [pid 5157] close(15) = -1 EBADF (Bad file descriptor) [pid 5157] close(16) = -1 EBADF (Bad file descriptor) [pid 5157] close(17) = -1 EBADF (Bad file descriptor) [pid 5157] close(18) = -1 EBADF (Bad file descriptor) [pid 5157] close(19) = -1 EBADF (Bad file descriptor) [pid 5157] close(20) = -1 EBADF (Bad file descriptor) [pid 5157] close(21) = -1 EBADF (Bad file descriptor) [pid 5157] close(22) = -1 EBADF (Bad file descriptor) [pid 5157] close(23) = -1 EBADF (Bad file descriptor) [pid 5157] close(24) = -1 EBADF (Bad file descriptor) [pid 5157] close(25) = -1 EBADF (Bad file descriptor) [pid 5157] close(26) = -1 EBADF (Bad file descriptor) [pid 5157] close(27) = -1 EBADF (Bad file descriptor) [pid 5157] close(28) = -1 EBADF (Bad file descriptor) [pid 5157] close(29) = -1 EBADF (Bad file descriptor) [pid 5157] exit_group(0) = ? [pid 5157] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=59, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./57/binderfs") = 0 [ 90.473015][ T5157] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./57/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./57/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./57") = 0 [pid 5039] mkdir("./58", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5159 attached , child_tidptr=0x555555e46650) = 60 [pid 5159] set_robust_list(0x555555e46660, 24) = 0 [pid 5159] chdir("./58") = 0 [pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5159] setpgid(0, 0) = 0 [pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5159] write(3, "1000", 4) = 4 [pid 5159] close(3) = 0 [pid 5159] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5159] memfd_create("syzkaller", 0) = 3 [pid 5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5159] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5159] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5159] close(3) = 0 [pid 5159] mkdir("./file0", 0777) = 0 [ 90.633522][ T5159] loop0: detected capacity change from 0 to 8192 [ 90.645449][ T5159] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.658502][ T5159] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 90.668080][ T5159] REISERFS (device loop0): using ordered data mode [ 90.674596][ T5159] reiserfs: using flush barriers [pid 5159] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5159] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5159] chdir("./file0") = 0 [pid 5159] ioctl(4, LOOP_CLR_FD) = 0 [pid 5159] close(4) = 0 [pid 5159] mkdir(".", 0777) = -1 EEXIST (File exists) [ 90.681177][ T5159] 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 [ 90.698046][ T5159] REISERFS (device loop0): checking transaction log (loop0) [ 90.706465][ T5159] REISERFS (device loop0): Using r5 hash to sort names [ 90.726115][ T5159] reiserfs: enabling write barrier flush mode [pid 5159] mount(NULL, ".", 0x200000c0, 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 5159] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5159] chdir(".") = 0 [pid 5159] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5159] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5159] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5159] close(3) = 0 [pid 5159] close(4) = 0 [pid 5159] close(5) = 0 [pid 5159] close(6) = -1 EBADF (Bad file descriptor) [pid 5159] close(7) = -1 EBADF (Bad file descriptor) [pid 5159] close(8) = -1 EBADF (Bad file descriptor) [pid 5159] close(9) = -1 EBADF (Bad file descriptor) [pid 5159] close(10) = -1 EBADF (Bad file descriptor) [pid 5159] close(11) = -1 EBADF (Bad file descriptor) [pid 5159] close(12) = -1 EBADF (Bad file descriptor) [pid 5159] close(13) = -1 EBADF (Bad file descriptor) [pid 5159] close(14) = -1 EBADF (Bad file descriptor) [pid 5159] close(15) = -1 EBADF (Bad file descriptor) [pid 5159] close(16) = -1 EBADF (Bad file descriptor) [pid 5159] close(17) = -1 EBADF (Bad file descriptor) [pid 5159] close(18) = -1 EBADF (Bad file descriptor) [pid 5159] close(19) = -1 EBADF (Bad file descriptor) [pid 5159] close(20) = -1 EBADF (Bad file descriptor) [pid 5159] close(21) = -1 EBADF (Bad file descriptor) [pid 5159] close(22) = -1 EBADF (Bad file descriptor) [pid 5159] close(23) = -1 EBADF (Bad file descriptor) [pid 5159] close(24) = -1 EBADF (Bad file descriptor) [pid 5159] close(25) = -1 EBADF (Bad file descriptor) [pid 5159] close(26) = -1 EBADF (Bad file descriptor) [pid 5159] close(27) = -1 EBADF (Bad file descriptor) [pid 5159] close(28) = -1 EBADF (Bad file descriptor) [pid 5159] close(29) = -1 EBADF (Bad file descriptor) [pid 5159] exit_group(0) = ? [pid 5159] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=60, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./58/binderfs") = 0 [ 90.734548][ T5159] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./58/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./58") = 0 [pid 5039] mkdir("./59", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 61 ./strace-static-x86_64: Process 5161 attached [pid 5161] set_robust_list(0x555555e46660, 24) = 0 [pid 5161] chdir("./59") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5161] memfd_create("syzkaller", 0) = 3 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5161] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5161] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5161] close(3) = 0 [pid 5161] mkdir("./file0", 0777) = 0 [ 90.905149][ T5161] loop0: detected capacity change from 0 to 8192 [ 90.916225][ T5161] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 90.929588][ T5161] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 90.939266][ T5161] REISERFS (device loop0): using ordered data mode [ 90.946082][ T5161] reiserfs: using flush barriers [pid 5161] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5161] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5161] chdir("./file0") = 0 [pid 5161] ioctl(4, LOOP_CLR_FD) = 0 [pid 5161] close(4) = 0 [pid 5161] mkdir(".", 0777) = -1 EEXIST (File exists) [ 90.952851][ T5161] 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 [ 90.969802][ T5161] REISERFS (device loop0): checking transaction log (loop0) [ 90.978233][ T5161] REISERFS (device loop0): Using r5 hash to sort names [ 90.989168][ T5161] reiserfs: enabling write barrier flush mode [pid 5161] mount(NULL, ".", 0x200000c0, 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 5161] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5161] chdir(".") = 0 [pid 5161] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5161] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5161] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5161] close(3) = 0 [pid 5161] close(4) = 0 [pid 5161] close(5) = 0 [pid 5161] close(6) = -1 EBADF (Bad file descriptor) [pid 5161] close(7) = -1 EBADF (Bad file descriptor) [pid 5161] close(8) = -1 EBADF (Bad file descriptor) [pid 5161] close(9) = -1 EBADF (Bad file descriptor) [pid 5161] close(10) = -1 EBADF (Bad file descriptor) [pid 5161] close(11) = -1 EBADF (Bad file descriptor) [pid 5161] close(12) = -1 EBADF (Bad file descriptor) [pid 5161] close(13) = -1 EBADF (Bad file descriptor) [pid 5161] close(14) = -1 EBADF (Bad file descriptor) [pid 5161] close(15) = -1 EBADF (Bad file descriptor) [pid 5161] close(16) = -1 EBADF (Bad file descriptor) [pid 5161] close(17) = -1 EBADF (Bad file descriptor) [pid 5161] close(18) = -1 EBADF (Bad file descriptor) [pid 5161] close(19) = -1 EBADF (Bad file descriptor) [pid 5161] close(20) = -1 EBADF (Bad file descriptor) [pid 5161] close(21) = -1 EBADF (Bad file descriptor) [pid 5161] close(22) = -1 EBADF (Bad file descriptor) [pid 5161] close(23) = -1 EBADF (Bad file descriptor) [pid 5161] close(24) = -1 EBADF (Bad file descriptor) [pid 5161] close(25) = -1 EBADF (Bad file descriptor) [pid 5161] close(26) = -1 EBADF (Bad file descriptor) [pid 5161] close(27) = -1 EBADF (Bad file descriptor) [pid 5161] close(28) = -1 EBADF (Bad file descriptor) [pid 5161] close(29) = -1 EBADF (Bad file descriptor) [pid 5161] exit_group(0) = ? [pid 5161] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=61, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./59/binderfs") = 0 [ 90.999175][ T5161] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./59/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./59/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./59") = 0 [pid 5039] mkdir("./60", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5163 attached , child_tidptr=0x555555e46650) = 62 [pid 5163] set_robust_list(0x555555e46660, 24) = 0 [pid 5163] chdir("./60") = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5163] setpgid(0, 0) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5163] memfd_create("syzkaller", 0) = 3 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5163] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5163] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5163] close(3) = 0 [pid 5163] mkdir("./file0", 0777) = 0 [ 91.160297][ T5163] loop0: detected capacity change from 0 to 8192 [ 91.171584][ T5163] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.184780][ T5163] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 91.194153][ T5163] REISERFS (device loop0): using ordered data mode [ 91.200747][ T5163] reiserfs: using flush barriers [pid 5163] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5163] chdir("./file0") = 0 [pid 5163] ioctl(4, LOOP_CLR_FD) = 0 [pid 5163] close(4) = 0 [pid 5163] mkdir(".", 0777) = -1 EEXIST (File exists) [ 91.207228][ T5163] 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 [ 91.224085][ T5163] REISERFS (device loop0): checking transaction log (loop0) [ 91.232448][ T5163] REISERFS (device loop0): Using r5 hash to sort names [pid 5163] mount(NULL, ".", 0x200000c0, 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 5163] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5163] chdir(".") = 0 [pid 5163] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5163] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5163] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5163] close(3) = 0 [pid 5163] close(4) = 0 [pid 5163] close(5) = 0 [pid 5163] close(6) = -1 EBADF (Bad file descriptor) [pid 5163] close(7) = -1 EBADF (Bad file descriptor) [pid 5163] close(8) = -1 EBADF (Bad file descriptor) [pid 5163] close(9) = -1 EBADF (Bad file descriptor) [pid 5163] close(10) = -1 EBADF (Bad file descriptor) [pid 5163] close(11) = -1 EBADF (Bad file descriptor) [pid 5163] close(12) = -1 EBADF (Bad file descriptor) [pid 5163] close(13) = -1 EBADF (Bad file descriptor) [pid 5163] close(14) = -1 EBADF (Bad file descriptor) [pid 5163] close(15) = -1 EBADF (Bad file descriptor) [pid 5163] close(16) = -1 EBADF (Bad file descriptor) [pid 5163] close(17) = -1 EBADF (Bad file descriptor) [pid 5163] close(18) = -1 EBADF (Bad file descriptor) [pid 5163] close(19) = -1 EBADF (Bad file descriptor) [pid 5163] close(20) = -1 EBADF (Bad file descriptor) [pid 5163] close(21) = -1 EBADF (Bad file descriptor) [pid 5163] close(22) = -1 EBADF (Bad file descriptor) [pid 5163] close(23) = -1 EBADF (Bad file descriptor) [pid 5163] close(24) = -1 EBADF (Bad file descriptor) [pid 5163] close(25) = -1 EBADF (Bad file descriptor) [pid 5163] close(26) = -1 EBADF (Bad file descriptor) [pid 5163] close(27) = -1 EBADF (Bad file descriptor) [pid 5163] close(28) = -1 EBADF (Bad file descriptor) [pid 5163] close(29) = -1 EBADF (Bad file descriptor) [pid 5163] exit_group(0) = ? [pid 5163] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=62, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./60/binderfs") = 0 [ 91.266733][ T5163] reiserfs: enabling write barrier flush mode [ 91.276120][ T5163] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./60/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./60") = 0 [pid 5039] mkdir("./61", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 63 ./strace-static-x86_64: Process 5165 attached [pid 5165] set_robust_list(0x555555e46660, 24) = 0 [pid 5165] chdir("./61") = 0 [pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5165] setpgid(0, 0) = 0 [pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5165] write(3, "1000", 4) = 4 [pid 5165] close(3) = 0 [pid 5165] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5165] memfd_create("syzkaller", 0) = 3 [pid 5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5165] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5165] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5165] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5165] close(3) = 0 [pid 5165] mkdir("./file0", 0777) = 0 [ 91.436453][ T5165] loop0: detected capacity change from 0 to 8192 [ 91.447359][ T5165] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.460405][ T5165] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 91.469719][ T5165] REISERFS (device loop0): using ordered data mode [ 91.476325][ T5165] reiserfs: using flush barriers [pid 5165] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5165] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5165] chdir("./file0") = 0 [pid 5165] ioctl(4, LOOP_CLR_FD) = 0 [pid 5165] close(4) = 0 [pid 5165] mkdir(".", 0777) = -1 EEXIST (File exists) [ 91.482825][ T5165] 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 [ 91.499544][ T5165] REISERFS (device loop0): checking transaction log (loop0) [ 91.507983][ T5165] REISERFS (device loop0): Using r5 hash to sort names [ 91.526645][ T5165] reiserfs: enabling write barrier flush mode [pid 5165] mount(NULL, ".", 0x200000c0, 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 5165] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5165] chdir(".") = 0 [pid 5165] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5165] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5165] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5165] close(3) = 0 [pid 5165] close(4) = 0 [pid 5165] close(5) = 0 [pid 5165] close(6) = -1 EBADF (Bad file descriptor) [pid 5165] close(7) = -1 EBADF (Bad file descriptor) [pid 5165] close(8) = -1 EBADF (Bad file descriptor) [pid 5165] close(9) = -1 EBADF (Bad file descriptor) [pid 5165] close(10) = -1 EBADF (Bad file descriptor) [pid 5165] close(11) = -1 EBADF (Bad file descriptor) [pid 5165] close(12) = -1 EBADF (Bad file descriptor) [pid 5165] close(13) = -1 EBADF (Bad file descriptor) [pid 5165] close(14) = -1 EBADF (Bad file descriptor) [pid 5165] close(15) = -1 EBADF (Bad file descriptor) [pid 5165] close(16) = -1 EBADF (Bad file descriptor) [pid 5165] close(17) = -1 EBADF (Bad file descriptor) [pid 5165] close(18) = -1 EBADF (Bad file descriptor) [pid 5165] close(19) = -1 EBADF (Bad file descriptor) [pid 5165] close(20) = -1 EBADF (Bad file descriptor) [pid 5165] close(21) = -1 EBADF (Bad file descriptor) [pid 5165] close(22) = -1 EBADF (Bad file descriptor) [pid 5165] close(23) = -1 EBADF (Bad file descriptor) [pid 5165] close(24) = -1 EBADF (Bad file descriptor) [pid 5165] close(25) = -1 EBADF (Bad file descriptor) [pid 5165] close(26) = -1 EBADF (Bad file descriptor) [pid 5165] close(27) = -1 EBADF (Bad file descriptor) [pid 5165] close(28) = -1 EBADF (Bad file descriptor) [pid 5165] close(29) = -1 EBADF (Bad file descriptor) [pid 5165] exit_group(0) = ? [pid 5165] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=63, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./61/binderfs") = 0 [ 91.538515][ T5165] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./61/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./61/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./61") = 0 [pid 5039] mkdir("./62", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached , child_tidptr=0x555555e46650) = 64 [pid 5167] set_robust_list(0x555555e46660, 24) = 0 [pid 5167] chdir("./62") = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5167] memfd_create("syzkaller", 0) = 3 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5167] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5167] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5167] close(3) = 0 [pid 5167] mkdir("./file0", 0777) = 0 [ 91.718572][ T5167] loop0: detected capacity change from 0 to 8192 [ 91.730305][ T5167] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 91.743434][ T5167] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 91.752845][ T5167] REISERFS (device loop0): using ordered data mode [ 91.759475][ T5167] reiserfs: using flush barriers [pid 5167] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5167] chdir("./file0") = 0 [pid 5167] ioctl(4, LOOP_CLR_FD) = 0 [pid 5167] close(4) = 0 [pid 5167] mkdir(".", 0777) = -1 EEXIST (File exists) [ 91.766237][ T5167] 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 [ 91.782791][ T5167] REISERFS (device loop0): checking transaction log (loop0) [ 91.791254][ T5167] REISERFS (device loop0): Using r5 hash to sort names [ 91.807837][ T5167] reiserfs: enabling write barrier flush mode [pid 5167] mount(NULL, ".", 0x200000c0, 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 5167] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5167] chdir(".") = 0 [pid 5167] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5167] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5167] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5167] close(3) = 0 [pid 5167] close(4) = 0 [pid 5167] close(5) = 0 [pid 5167] close(6) = -1 EBADF (Bad file descriptor) [pid 5167] close(7) = -1 EBADF (Bad file descriptor) [pid 5167] close(8) = -1 EBADF (Bad file descriptor) [pid 5167] close(9) = -1 EBADF (Bad file descriptor) [pid 5167] close(10) = -1 EBADF (Bad file descriptor) [pid 5167] close(11) = -1 EBADF (Bad file descriptor) [pid 5167] close(12) = -1 EBADF (Bad file descriptor) [pid 5167] close(13) = -1 EBADF (Bad file descriptor) [pid 5167] close(14) = -1 EBADF (Bad file descriptor) [pid 5167] close(15) = -1 EBADF (Bad file descriptor) [pid 5167] close(16) = -1 EBADF (Bad file descriptor) [pid 5167] close(17) = -1 EBADF (Bad file descriptor) [pid 5167] close(18) = -1 EBADF (Bad file descriptor) [pid 5167] close(19) = -1 EBADF (Bad file descriptor) [pid 5167] close(20) = -1 EBADF (Bad file descriptor) [pid 5167] close(21) = -1 EBADF (Bad file descriptor) [pid 5167] close(22) = -1 EBADF (Bad file descriptor) [pid 5167] close(23) = -1 EBADF (Bad file descriptor) [pid 5167] close(24) = -1 EBADF (Bad file descriptor) [pid 5167] close(25) = -1 EBADF (Bad file descriptor) [pid 5167] close(26) = -1 EBADF (Bad file descriptor) [pid 5167] close(27) = -1 EBADF (Bad file descriptor) [pid 5167] close(28) = -1 EBADF (Bad file descriptor) [pid 5167] close(29) = -1 EBADF (Bad file descriptor) [pid 5167] exit_group(0) = ? [pid 5167] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=64, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./62/binderfs") = 0 [ 91.817168][ T5167] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./62/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./62/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./62") = 0 [pid 5039] mkdir("./63", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached , child_tidptr=0x555555e46650) = 65 [pid 5169] set_robust_list(0x555555e46660, 24) = 0 [pid 5169] chdir("./63") = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] setpgid(0, 0) = 0 [pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5169] write(3, "1000", 4) = 4 [pid 5169] close(3) = 0 [pid 5169] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5169] memfd_create("syzkaller", 0) = 3 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5169] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5169] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5169] close(3) = 0 [pid 5169] mkdir("./file0", 0777) = 0 [ 91.985743][ T5169] loop0: detected capacity change from 0 to 8192 [ 91.996551][ T5169] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.009755][ T5169] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 92.019492][ T5169] REISERFS (device loop0): using ordered data mode [ 92.026046][ T5169] reiserfs: using flush barriers [pid 5169] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5169] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5169] chdir("./file0") = 0 [pid 5169] ioctl(4, LOOP_CLR_FD) = 0 [pid 5169] close(4) = 0 [pid 5169] mkdir(".", 0777) = -1 EEXIST (File exists) [ 92.032322][ T5169] 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 [ 92.049022][ T5169] REISERFS (device loop0): checking transaction log (loop0) [ 92.057433][ T5169] REISERFS (device loop0): Using r5 hash to sort names [ 92.069956][ T5169] reiserfs: enabling write barrier flush mode [pid 5169] mount(NULL, ".", 0x200000c0, 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 5169] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5169] chdir(".") = 0 [pid 5169] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5169] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5169] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5169] close(3) = 0 [pid 5169] close(4) = 0 [pid 5169] close(5) = 0 [pid 5169] close(6) = -1 EBADF (Bad file descriptor) [pid 5169] close(7) = -1 EBADF (Bad file descriptor) [pid 5169] close(8) = -1 EBADF (Bad file descriptor) [pid 5169] close(9) = -1 EBADF (Bad file descriptor) [pid 5169] close(10) = -1 EBADF (Bad file descriptor) [pid 5169] close(11) = -1 EBADF (Bad file descriptor) [pid 5169] close(12) = -1 EBADF (Bad file descriptor) [pid 5169] close(13) = -1 EBADF (Bad file descriptor) [pid 5169] close(14) = -1 EBADF (Bad file descriptor) [pid 5169] close(15) = -1 EBADF (Bad file descriptor) [pid 5169] close(16) = -1 EBADF (Bad file descriptor) [pid 5169] close(17) = -1 EBADF (Bad file descriptor) [pid 5169] close(18) = -1 EBADF (Bad file descriptor) [pid 5169] close(19) = -1 EBADF (Bad file descriptor) [pid 5169] close(20) = -1 EBADF (Bad file descriptor) [pid 5169] close(21) = -1 EBADF (Bad file descriptor) [pid 5169] close(22) = -1 EBADF (Bad file descriptor) [pid 5169] close(23) = -1 EBADF (Bad file descriptor) [pid 5169] close(24) = -1 EBADF (Bad file descriptor) [pid 5169] close(25) = -1 EBADF (Bad file descriptor) [pid 5169] close(26) = -1 EBADF (Bad file descriptor) [pid 5169] close(27) = -1 EBADF (Bad file descriptor) [pid 5169] close(28) = -1 EBADF (Bad file descriptor) [pid 5169] close(29) = -1 EBADF (Bad file descriptor) [pid 5169] exit_group(0) = ? [ 92.080013][ T5169] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5169] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=65, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./63/binderfs") = 0 [pid 5039] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./63/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./63/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./63") = 0 [pid 5039] mkdir("./64", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5171 attached , child_tidptr=0x555555e46650) = 66 [pid 5171] set_robust_list(0x555555e46660, 24) = 0 [pid 5171] chdir("./64") = 0 [pid 5171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5171] setpgid(0, 0) = 0 [pid 5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5171] write(3, "1000", 4) = 4 [pid 5171] close(3) = 0 [pid 5171] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5171] memfd_create("syzkaller", 0) = 3 [pid 5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5171] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5171] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5171] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5171] close(3) = 0 [pid 5171] mkdir("./file0", 0777) = 0 [ 92.264550][ T5171] loop0: detected capacity change from 0 to 8192 [ 92.275390][ T5171] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.288514][ T5171] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 92.298131][ T5171] REISERFS (device loop0): using ordered data mode [ 92.304632][ T5171] reiserfs: using flush barriers [pid 5171] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5171] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5171] chdir("./file0") = 0 [pid 5171] ioctl(4, LOOP_CLR_FD) = 0 [pid 5171] close(4) = 0 [pid 5171] mkdir(".", 0777) = -1 EEXIST (File exists) [ 92.311557][ T5171] 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 [ 92.328496][ T5171] REISERFS (device loop0): checking transaction log (loop0) [ 92.336937][ T5171] REISERFS (device loop0): Using r5 hash to sort names [ 92.350654][ T5171] reiserfs: enabling write barrier flush mode [pid 5171] mount(NULL, ".", 0x200000c0, 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 5171] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5171] chdir(".") = 0 [pid 5171] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5171] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5171] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5171] close(3) = 0 [pid 5171] close(4) = 0 [pid 5171] close(5) = 0 [pid 5171] close(6) = -1 EBADF (Bad file descriptor) [pid 5171] close(7) = -1 EBADF (Bad file descriptor) [pid 5171] close(8) = -1 EBADF (Bad file descriptor) [pid 5171] close(9) = -1 EBADF (Bad file descriptor) [pid 5171] close(10) = -1 EBADF (Bad file descriptor) [pid 5171] close(11) = -1 EBADF (Bad file descriptor) [pid 5171] close(12) = -1 EBADF (Bad file descriptor) [pid 5171] close(13) = -1 EBADF (Bad file descriptor) [pid 5171] close(14) = -1 EBADF (Bad file descriptor) [pid 5171] close(15) = -1 EBADF (Bad file descriptor) [pid 5171] close(16) = -1 EBADF (Bad file descriptor) [pid 5171] close(17) = -1 EBADF (Bad file descriptor) [pid 5171] close(18) = -1 EBADF (Bad file descriptor) [pid 5171] close(19) = -1 EBADF (Bad file descriptor) [pid 5171] close(20) = -1 EBADF (Bad file descriptor) [pid 5171] close(21) = -1 EBADF (Bad file descriptor) [pid 5171] close(22) = -1 EBADF (Bad file descriptor) [pid 5171] close(23) = -1 EBADF (Bad file descriptor) [pid 5171] close(24) = -1 EBADF (Bad file descriptor) [pid 5171] close(25) = -1 EBADF (Bad file descriptor) [pid 5171] close(26) = -1 EBADF (Bad file descriptor) [pid 5171] close(27) = -1 EBADF (Bad file descriptor) [pid 5171] close(28) = -1 EBADF (Bad file descriptor) [pid 5171] close(29) = -1 EBADF (Bad file descriptor) [pid 5171] exit_group(0) = ? [pid 5171] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=66, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./64/binderfs") = 0 [ 92.361398][ T5171] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./64/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./64/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./64") = 0 [pid 5039] mkdir("./65", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached , child_tidptr=0x555555e46650) = 67 [pid 5173] set_robust_list(0x555555e46660, 24) = 0 [pid 5173] chdir("./65") = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] memfd_create("syzkaller", 0) = 3 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5173] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5173] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5173] close(3) = 0 [pid 5173] mkdir("./file0", 0777) = 0 [ 92.550645][ T5173] loop0: detected capacity change from 0 to 8192 [ 92.561299][ T5173] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.574950][ T5173] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 92.584241][ T5173] REISERFS (device loop0): using ordered data mode [ 92.591223][ T5173] reiserfs: using flush barriers [pid 5173] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5173] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5173] chdir("./file0") = 0 [pid 5173] ioctl(4, LOOP_CLR_FD) = 0 [pid 5173] close(4) = 0 [pid 5173] mkdir(".", 0777) = -1 EEXIST (File exists) [ 92.597834][ T5173] 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 [ 92.614609][ T5173] REISERFS (device loop0): checking transaction log (loop0) [ 92.623085][ T5173] REISERFS (device loop0): Using r5 hash to sort names [ 92.645017][ T5173] reiserfs: enabling write barrier flush mode [pid 5173] mount(NULL, ".", 0x200000c0, 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 5173] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5173] chdir(".") = 0 [pid 5173] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5173] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5173] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5173] close(3) = 0 [pid 5173] close(4) = 0 [pid 5173] close(5) = 0 [pid 5173] close(6) = -1 EBADF (Bad file descriptor) [pid 5173] close(7) = -1 EBADF (Bad file descriptor) [pid 5173] close(8) = -1 EBADF (Bad file descriptor) [pid 5173] close(9) = -1 EBADF (Bad file descriptor) [pid 5173] close(10) = -1 EBADF (Bad file descriptor) [pid 5173] close(11) = -1 EBADF (Bad file descriptor) [pid 5173] close(12) = -1 EBADF (Bad file descriptor) [pid 5173] close(13) = -1 EBADF (Bad file descriptor) [pid 5173] close(14) = -1 EBADF (Bad file descriptor) [pid 5173] close(15) = -1 EBADF (Bad file descriptor) [pid 5173] close(16) = -1 EBADF (Bad file descriptor) [pid 5173] close(17) = -1 EBADF (Bad file descriptor) [pid 5173] close(18) = -1 EBADF (Bad file descriptor) [pid 5173] close(19) = -1 EBADF (Bad file descriptor) [pid 5173] close(20) = -1 EBADF (Bad file descriptor) [pid 5173] close(21) = -1 EBADF (Bad file descriptor) [pid 5173] close(22) = -1 EBADF (Bad file descriptor) [pid 5173] close(23) = -1 EBADF (Bad file descriptor) [pid 5173] close(24) = -1 EBADF (Bad file descriptor) [pid 5173] close(25) = -1 EBADF (Bad file descriptor) [pid 5173] close(26) = -1 EBADF (Bad file descriptor) [pid 5173] close(27) = -1 EBADF (Bad file descriptor) [pid 5173] close(28) = -1 EBADF (Bad file descriptor) [pid 5173] close(29) = -1 EBADF (Bad file descriptor) [pid 5173] exit_group(0) = ? [pid 5173] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=67, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5039] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./65/binderfs") = 0 [ 92.658298][ T5173] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./65/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./65/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./65") = 0 [pid 5039] mkdir("./66", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5175 attached [pid 5175] set_robust_list(0x555555e46660, 24) = 0 [pid 5175] chdir("./66") = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 68 [pid 5175] <... openat resumed>) = 3 [pid 5175] write(3, "1000", 4) = 4 [pid 5175] close(3) = 0 [pid 5175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5175] memfd_create("syzkaller", 0) = 3 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5175] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5175] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5175] close(3) = 0 [pid 5175] mkdir("./file0", 0777) = 0 [ 92.817574][ T5175] loop0: detected capacity change from 0 to 8192 [ 92.827946][ T5175] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 92.841032][ T5175] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 92.850345][ T5175] REISERFS (device loop0): using ordered data mode [ 92.856907][ T5175] reiserfs: using flush barriers [pid 5175] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5175] chdir("./file0") = 0 [pid 5175] ioctl(4, LOOP_CLR_FD) = 0 [pid 5175] close(4) = 0 [pid 5175] mkdir(".", 0777) = -1 EEXIST (File exists) [ 92.863355][ T5175] 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 [ 92.879999][ T5175] REISERFS (device loop0): checking transaction log (loop0) [ 92.888367][ T5175] REISERFS (device loop0): Using r5 hash to sort names [ 92.906151][ T5175] reiserfs: enabling write barrier flush mode [pid 5175] mount(NULL, ".", 0x200000c0, 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 5175] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5175] chdir(".") = 0 [pid 5175] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5175] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5175] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5175] close(3) = 0 [pid 5175] close(4) = 0 [pid 5175] close(5) = 0 [pid 5175] close(6) = -1 EBADF (Bad file descriptor) [pid 5175] close(7) = -1 EBADF (Bad file descriptor) [pid 5175] close(8) = -1 EBADF (Bad file descriptor) [pid 5175] close(9) = -1 EBADF (Bad file descriptor) [pid 5175] close(10) = -1 EBADF (Bad file descriptor) [pid 5175] close(11) = -1 EBADF (Bad file descriptor) [pid 5175] close(12) = -1 EBADF (Bad file descriptor) [pid 5175] close(13) = -1 EBADF (Bad file descriptor) [pid 5175] close(14) = -1 EBADF (Bad file descriptor) [pid 5175] close(15) = -1 EBADF (Bad file descriptor) [pid 5175] close(16) = -1 EBADF (Bad file descriptor) [pid 5175] close(17) = -1 EBADF (Bad file descriptor) [pid 5175] close(18) = -1 EBADF (Bad file descriptor) [pid 5175] close(19) = -1 EBADF (Bad file descriptor) [pid 5175] close(20) = -1 EBADF (Bad file descriptor) [pid 5175] close(21) = -1 EBADF (Bad file descriptor) [pid 5175] close(22) = -1 EBADF (Bad file descriptor) [pid 5175] close(23) = -1 EBADF (Bad file descriptor) [pid 5175] close(24) = -1 EBADF (Bad file descriptor) [pid 5175] close(25) = -1 EBADF (Bad file descriptor) [pid 5175] close(26) = -1 EBADF (Bad file descriptor) [pid 5175] close(27) = -1 EBADF (Bad file descriptor) [pid 5175] close(28) = -1 EBADF (Bad file descriptor) [pid 5175] close(29) = -1 EBADF (Bad file descriptor) [pid 5175] exit_group(0) = ? [pid 5175] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=68, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./66/binderfs") = 0 [ 92.916246][ T5175] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./66/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./66/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./66") = 0 [pid 5039] mkdir("./67", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5177 attached , child_tidptr=0x555555e46650) = 69 [pid 5177] set_robust_list(0x555555e46660, 24) = 0 [pid 5177] chdir("./67") = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5177] setpgid(0, 0) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5177] memfd_create("syzkaller", 0) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5177] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5177] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5177] close(3) = 0 [pid 5177] mkdir("./file0", 0777) = 0 [ 93.094221][ T5177] loop0: detected capacity change from 0 to 8192 [ 93.105551][ T5177] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.119105][ T5177] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 93.128657][ T5177] REISERFS (device loop0): using ordered data mode [ 93.135252][ T5177] reiserfs: using flush barriers [pid 5177] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5177] chdir("./file0") = 0 [pid 5177] ioctl(4, LOOP_CLR_FD) = 0 [pid 5177] close(4) = 0 [pid 5177] mkdir(".", 0777) = -1 EEXIST (File exists) [ 93.145122][ T5177] 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 [ 93.161853][ T5177] REISERFS (device loop0): checking transaction log (loop0) [ 93.170672][ T5177] REISERFS (device loop0): Using r5 hash to sort names [ 93.185981][ T5177] reiserfs: enabling write barrier flush mode [pid 5177] mount(NULL, ".", 0x200000c0, 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 5177] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5177] chdir(".") = 0 [pid 5177] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5177] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5177] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5177] close(3) = 0 [pid 5177] close(4) = 0 [pid 5177] close(5) = 0 [pid 5177] close(6) = -1 EBADF (Bad file descriptor) [pid 5177] close(7) = -1 EBADF (Bad file descriptor) [pid 5177] close(8) = -1 EBADF (Bad file descriptor) [pid 5177] close(9) = -1 EBADF (Bad file descriptor) [pid 5177] close(10) = -1 EBADF (Bad file descriptor) [pid 5177] close(11) = -1 EBADF (Bad file descriptor) [pid 5177] close(12) = -1 EBADF (Bad file descriptor) [pid 5177] close(13) = -1 EBADF (Bad file descriptor) [pid 5177] close(14) = -1 EBADF (Bad file descriptor) [pid 5177] close(15) = -1 EBADF (Bad file descriptor) [pid 5177] close(16) = -1 EBADF (Bad file descriptor) [pid 5177] close(17) = -1 EBADF (Bad file descriptor) [pid 5177] close(18) = -1 EBADF (Bad file descriptor) [pid 5177] close(19) = -1 EBADF (Bad file descriptor) [pid 5177] close(20) = -1 EBADF (Bad file descriptor) [pid 5177] close(21) = -1 EBADF (Bad file descriptor) [pid 5177] close(22) = -1 EBADF (Bad file descriptor) [pid 5177] close(23) = -1 EBADF (Bad file descriptor) [pid 5177] close(24) = -1 EBADF (Bad file descriptor) [pid 5177] close(25) = -1 EBADF (Bad file descriptor) [pid 5177] close(26) = -1 EBADF (Bad file descriptor) [pid 5177] close(27) = -1 EBADF (Bad file descriptor) [pid 5177] close(28) = -1 EBADF (Bad file descriptor) [pid 5177] close(29) = -1 EBADF (Bad file descriptor) [pid 5177] exit_group(0) = ? [pid 5177] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=69, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./67/binderfs") = 0 [ 93.205207][ T5177] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./67/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./67") = 0 [pid 5039] mkdir("./68", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5179 attached , child_tidptr=0x555555e46650) = 70 [pid 5179] set_robust_list(0x555555e46660, 24) = 0 [pid 5179] chdir("./68") = 0 [pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5179] setpgid(0, 0) = 0 [pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5179] write(3, "1000", 4) = 4 [pid 5179] close(3) = 0 [pid 5179] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5179] memfd_create("syzkaller", 0) = 3 [pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5179] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5179] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5179] close(3) = 0 [pid 5179] mkdir("./file0", 0777) = 0 [ 93.377913][ T5179] loop0: detected capacity change from 0 to 8192 [ 93.389110][ T5179] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.402206][ T5179] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 93.411561][ T5179] REISERFS (device loop0): using ordered data mode [ 93.418186][ T5179] reiserfs: using flush barriers [pid 5179] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5179] chdir("./file0") = 0 [pid 5179] ioctl(4, LOOP_CLR_FD) = 0 [pid 5179] close(4) = 0 [pid 5179] mkdir(".", 0777) = -1 EEXIST (File exists) [ 93.424506][ T5179] 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 [ 93.441179][ T5179] REISERFS (device loop0): checking transaction log (loop0) [ 93.449588][ T5179] REISERFS (device loop0): Using r5 hash to sort names [ 93.467107][ T5179] reiserfs: enabling write barrier flush mode [pid 5179] mount(NULL, ".", 0x200000c0, 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 5179] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5179] chdir(".") = 0 [pid 5179] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5179] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5179] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5179] close(3) = 0 [pid 5179] close(4) = 0 [pid 5179] close(5) = 0 [pid 5179] close(6) = -1 EBADF (Bad file descriptor) [pid 5179] close(7) = -1 EBADF (Bad file descriptor) [pid 5179] close(8) = -1 EBADF (Bad file descriptor) [pid 5179] close(9) = -1 EBADF (Bad file descriptor) [pid 5179] close(10) = -1 EBADF (Bad file descriptor) [pid 5179] close(11) = -1 EBADF (Bad file descriptor) [pid 5179] close(12) = -1 EBADF (Bad file descriptor) [pid 5179] close(13) = -1 EBADF (Bad file descriptor) [pid 5179] close(14) = -1 EBADF (Bad file descriptor) [pid 5179] close(15) = -1 EBADF (Bad file descriptor) [pid 5179] close(16) = -1 EBADF (Bad file descriptor) [pid 5179] close(17) = -1 EBADF (Bad file descriptor) [pid 5179] close(18) = -1 EBADF (Bad file descriptor) [pid 5179] close(19) = -1 EBADF (Bad file descriptor) [pid 5179] close(20) = -1 EBADF (Bad file descriptor) [pid 5179] close(21) = -1 EBADF (Bad file descriptor) [pid 5179] close(22) = -1 EBADF (Bad file descriptor) [pid 5179] close(23) = -1 EBADF (Bad file descriptor) [pid 5179] close(24) = -1 EBADF (Bad file descriptor) [pid 5179] close(25) = -1 EBADF (Bad file descriptor) [pid 5179] close(26) = -1 EBADF (Bad file descriptor) [pid 5179] close(27) = -1 EBADF (Bad file descriptor) [pid 5179] close(28) = -1 EBADF (Bad file descriptor) [pid 5179] close(29) = -1 EBADF (Bad file descriptor) [pid 5179] exit_group(0) = ? [pid 5179] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=70, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./68/binderfs") = 0 [ 93.478012][ T5179] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./68/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./68/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./68") = 0 [pid 5039] mkdir("./69", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5181 attached , child_tidptr=0x555555e46650) = 71 [pid 5181] set_robust_list(0x555555e46660, 24) = 0 [pid 5181] chdir("./69") = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5181] write(3, "1000", 4) = 4 [pid 5181] close(3) = 0 [pid 5181] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5181] memfd_create("syzkaller", 0) = 3 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5181] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5181] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5181] close(3) = 0 [pid 5181] mkdir("./file0", 0777) = 0 [ 93.646922][ T5181] loop0: detected capacity change from 0 to 8192 [ 93.658939][ T5181] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.672064][ T5181] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 93.681566][ T5181] REISERFS (device loop0): using ordered data mode [ 93.688419][ T5181] reiserfs: using flush barriers [pid 5181] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5181] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5181] chdir("./file0") = 0 [pid 5181] ioctl(4, LOOP_CLR_FD) = 0 [pid 5181] close(4) = 0 [pid 5181] mkdir(".", 0777) = -1 EEXIST (File exists) [ 93.695107][ T5181] 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 [ 93.711733][ T5181] REISERFS (device loop0): checking transaction log (loop0) [ 93.720284][ T5181] REISERFS (device loop0): Using r5 hash to sort names [ 93.736466][ T5181] reiserfs: enabling write barrier flush mode [pid 5181] mount(NULL, ".", 0x200000c0, 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 5181] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5181] chdir(".") = 0 [pid 5181] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5181] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5181] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5181] close(3) = 0 [pid 5181] close(4) = 0 [pid 5181] close(5) = 0 [pid 5181] close(6) = -1 EBADF (Bad file descriptor) [pid 5181] close(7) = -1 EBADF (Bad file descriptor) [pid 5181] close(8) = -1 EBADF (Bad file descriptor) [pid 5181] close(9) = -1 EBADF (Bad file descriptor) [pid 5181] close(10) = -1 EBADF (Bad file descriptor) [pid 5181] close(11) = -1 EBADF (Bad file descriptor) [pid 5181] close(12) = -1 EBADF (Bad file descriptor) [pid 5181] close(13) = -1 EBADF (Bad file descriptor) [pid 5181] close(14) = -1 EBADF (Bad file descriptor) [pid 5181] close(15) = -1 EBADF (Bad file descriptor) [pid 5181] close(16) = -1 EBADF (Bad file descriptor) [pid 5181] close(17) = -1 EBADF (Bad file descriptor) [pid 5181] close(18) = -1 EBADF (Bad file descriptor) [pid 5181] close(19) = -1 EBADF (Bad file descriptor) [pid 5181] close(20) = -1 EBADF (Bad file descriptor) [pid 5181] close(21) = -1 EBADF (Bad file descriptor) [pid 5181] close(22) = -1 EBADF (Bad file descriptor) [pid 5181] close(23) = -1 EBADF (Bad file descriptor) [pid 5181] close(24) = -1 EBADF (Bad file descriptor) [pid 5181] close(25) = -1 EBADF (Bad file descriptor) [pid 5181] close(26) = -1 EBADF (Bad file descriptor) [pid 5181] close(27) = -1 EBADF (Bad file descriptor) [pid 5181] close(28) = -1 EBADF (Bad file descriptor) [pid 5181] close(29) = -1 EBADF (Bad file descriptor) [pid 5181] exit_group(0) = ? [pid 5181] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=71, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./69/binderfs") = 0 [ 93.745355][ T5181] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./69/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./69") = 0 [pid 5039] mkdir("./70", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 72 ./strace-static-x86_64: Process 5183 attached [pid 5183] set_robust_list(0x555555e46660, 24) = 0 [pid 5183] chdir("./70") = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5183] setpgid(0, 0) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5183] memfd_create("syzkaller", 0) = 3 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5183] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5183] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5183] close(3) = 0 [pid 5183] mkdir("./file0", 0777) = 0 [ 93.908564][ T5183] loop0: detected capacity change from 0 to 8192 [ 93.918926][ T5183] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 93.931944][ T5183] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 93.941410][ T5183] REISERFS (device loop0): using ordered data mode [ 93.948052][ T5183] reiserfs: using flush barriers [pid 5183] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5183] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5183] chdir("./file0") = 0 [pid 5183] ioctl(4, LOOP_CLR_FD) = 0 [pid 5183] close(4) = 0 [pid 5183] mkdir(".", 0777) = -1 EEXIST (File exists) [ 93.954331][ T5183] 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 [ 93.971251][ T5183] REISERFS (device loop0): checking transaction log (loop0) [ 93.979457][ T5183] REISERFS (device loop0): Using r5 hash to sort names [ 93.990154][ T5183] reiserfs: enabling write barrier flush mode [pid 5183] mount(NULL, ".", 0x200000c0, 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 5183] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5183] chdir(".") = 0 [pid 5183] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5183] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5183] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5183] close(3) = 0 [pid 5183] close(4) = 0 [pid 5183] close(5) = 0 [pid 5183] close(6) = -1 EBADF (Bad file descriptor) [pid 5183] close(7) = -1 EBADF (Bad file descriptor) [pid 5183] close(8) = -1 EBADF (Bad file descriptor) [pid 5183] close(9) = -1 EBADF (Bad file descriptor) [pid 5183] close(10) = -1 EBADF (Bad file descriptor) [pid 5183] close(11) = -1 EBADF (Bad file descriptor) [pid 5183] close(12) = -1 EBADF (Bad file descriptor) [pid 5183] close(13) = -1 EBADF (Bad file descriptor) [pid 5183] close(14) = -1 EBADF (Bad file descriptor) [pid 5183] close(15) = -1 EBADF (Bad file descriptor) [pid 5183] close(16) = -1 EBADF (Bad file descriptor) [pid 5183] close(17) = -1 EBADF (Bad file descriptor) [pid 5183] close(18) = -1 EBADF (Bad file descriptor) [pid 5183] close(19) = -1 EBADF (Bad file descriptor) [pid 5183] close(20) = -1 EBADF (Bad file descriptor) [pid 5183] close(21) = -1 EBADF (Bad file descriptor) [pid 5183] close(22) = -1 EBADF (Bad file descriptor) [pid 5183] close(23) = -1 EBADF (Bad file descriptor) [pid 5183] close(24) = -1 EBADF (Bad file descriptor) [pid 5183] close(25) = -1 EBADF (Bad file descriptor) [pid 5183] close(26) = -1 EBADF (Bad file descriptor) [pid 5183] close(27) = -1 EBADF (Bad file descriptor) [pid 5183] close(28) = -1 EBADF (Bad file descriptor) [pid 5183] close(29) = -1 EBADF (Bad file descriptor) [pid 5183] exit_group(0) = ? [pid 5183] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=72, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./70/binderfs") = 0 [ 94.000719][ T5183] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./70/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./70/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./70") = 0 [pid 5039] mkdir("./71", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5185 attached , child_tidptr=0x555555e46650) = 73 [pid 5185] set_robust_list(0x555555e46660, 24) = 0 [pid 5185] chdir("./71") = 0 [pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5185] setpgid(0, 0) = 0 [pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5185] write(3, "1000", 4) = 4 [pid 5185] close(3) = 0 [pid 5185] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5185] memfd_create("syzkaller", 0) = 3 [pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5185] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5185] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5185] close(3) = 0 [pid 5185] mkdir("./file0", 0777) = 0 [ 94.178703][ T5185] loop0: detected capacity change from 0 to 8192 [ 94.188985][ T5185] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.202046][ T5185] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 94.211348][ T5185] REISERFS (device loop0): using ordered data mode [ 94.217914][ T5185] reiserfs: using flush barriers [pid 5185] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5185] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5185] chdir("./file0") = 0 [pid 5185] ioctl(4, LOOP_CLR_FD) = 0 [pid 5185] close(4) = 0 [pid 5185] mkdir(".", 0777) = -1 EEXIST (File exists) [ 94.224215][ T5185] 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 [ 94.240940][ T5185] REISERFS (device loop0): checking transaction log (loop0) [ 94.249374][ T5185] REISERFS (device loop0): Using r5 hash to sort names [ 94.262438][ T5185] reiserfs: enabling write barrier flush mode [pid 5185] mount(NULL, ".", 0x200000c0, 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 5185] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5185] chdir(".") = 0 [pid 5185] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5185] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5185] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5185] close(3) = 0 [pid 5185] close(4) = 0 [pid 5185] close(5) = 0 [pid 5185] close(6) = -1 EBADF (Bad file descriptor) [pid 5185] close(7) = -1 EBADF (Bad file descriptor) [pid 5185] close(8) = -1 EBADF (Bad file descriptor) [pid 5185] close(9) = -1 EBADF (Bad file descriptor) [pid 5185] close(10) = -1 EBADF (Bad file descriptor) [pid 5185] close(11) = -1 EBADF (Bad file descriptor) [pid 5185] close(12) = -1 EBADF (Bad file descriptor) [pid 5185] close(13) = -1 EBADF (Bad file descriptor) [pid 5185] close(14) = -1 EBADF (Bad file descriptor) [pid 5185] close(15) = -1 EBADF (Bad file descriptor) [pid 5185] close(16) = -1 EBADF (Bad file descriptor) [pid 5185] close(17) = -1 EBADF (Bad file descriptor) [pid 5185] close(18) = -1 EBADF (Bad file descriptor) [pid 5185] close(19) = -1 EBADF (Bad file descriptor) [pid 5185] close(20) = -1 EBADF (Bad file descriptor) [pid 5185] close(21) = -1 EBADF (Bad file descriptor) [pid 5185] close(22) = -1 EBADF (Bad file descriptor) [pid 5185] close(23) = -1 EBADF (Bad file descriptor) [pid 5185] close(24) = -1 EBADF (Bad file descriptor) [pid 5185] close(25) = -1 EBADF (Bad file descriptor) [pid 5185] close(26) = -1 EBADF (Bad file descriptor) [pid 5185] close(27) = -1 EBADF (Bad file descriptor) [pid 5185] close(28) = -1 EBADF (Bad file descriptor) [pid 5185] close(29) = -1 EBADF (Bad file descriptor) [pid 5185] exit_group(0) = ? [pid 5185] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=73, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./71/binderfs") = 0 [ 94.273103][ T5185] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./71/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./71") = 0 [pid 5039] mkdir("./72", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5187 attached , child_tidptr=0x555555e46650) = 74 [pid 5187] set_robust_list(0x555555e46660, 24) = 0 [pid 5187] chdir("./72") = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5187] write(3, "1000", 4) = 4 [pid 5187] close(3) = 0 [pid 5187] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5187] memfd_create("syzkaller", 0) = 3 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5187] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5187] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5187] close(3) = 0 [pid 5187] mkdir("./file0", 0777) = 0 [ 94.438137][ T5187] loop0: detected capacity change from 0 to 8192 [ 94.450345][ T5187] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.463612][ T5187] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 94.472939][ T5187] REISERFS (device loop0): using ordered data mode [ 94.479580][ T5187] reiserfs: using flush barriers [pid 5187] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5187] chdir("./file0") = 0 [pid 5187] ioctl(4, LOOP_CLR_FD) = 0 [pid 5187] close(4) = 0 [pid 5187] mkdir(".", 0777) = -1 EEXIST (File exists) [ 94.486091][ T5187] 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 [ 94.502983][ T5187] REISERFS (device loop0): checking transaction log (loop0) [ 94.511692][ T5187] REISERFS (device loop0): Using r5 hash to sort names [ 94.525489][ T5187] reiserfs: enabling write barrier flush mode [pid 5187] mount(NULL, ".", 0x200000c0, 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 5187] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5187] chdir(".") = 0 [pid 5187] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5187] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5187] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5187] close(3) = 0 [pid 5187] close(4) = 0 [pid 5187] close(5) = 0 [pid 5187] close(6) = -1 EBADF (Bad file descriptor) [pid 5187] close(7) = -1 EBADF (Bad file descriptor) [pid 5187] close(8) = -1 EBADF (Bad file descriptor) [pid 5187] close(9) = -1 EBADF (Bad file descriptor) [pid 5187] close(10) = -1 EBADF (Bad file descriptor) [pid 5187] close(11) = -1 EBADF (Bad file descriptor) [pid 5187] close(12) = -1 EBADF (Bad file descriptor) [pid 5187] close(13) = -1 EBADF (Bad file descriptor) [pid 5187] close(14) = -1 EBADF (Bad file descriptor) [pid 5187] close(15) = -1 EBADF (Bad file descriptor) [pid 5187] close(16) = -1 EBADF (Bad file descriptor) [pid 5187] close(17) = -1 EBADF (Bad file descriptor) [pid 5187] close(18) = -1 EBADF (Bad file descriptor) [pid 5187] close(19) = -1 EBADF (Bad file descriptor) [pid 5187] close(20) = -1 EBADF (Bad file descriptor) [pid 5187] close(21) = -1 EBADF (Bad file descriptor) [pid 5187] close(22) = -1 EBADF (Bad file descriptor) [pid 5187] close(23) = -1 EBADF (Bad file descriptor) [pid 5187] close(24) = -1 EBADF (Bad file descriptor) [pid 5187] close(25) = -1 EBADF (Bad file descriptor) [pid 5187] close(26) = -1 EBADF (Bad file descriptor) [pid 5187] close(27) = -1 EBADF (Bad file descriptor) [pid 5187] close(28) = -1 EBADF (Bad file descriptor) [pid 5187] close(29) = -1 EBADF (Bad file descriptor) [pid 5187] exit_group(0) = ? [pid 5187] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=74, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./72/binderfs") = 0 [ 94.536188][ T5187] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./72/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./72/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./72") = 0 [pid 5039] mkdir("./73", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5189 attached , child_tidptr=0x555555e46650) = 75 [pid 5189] set_robust_list(0x555555e46660, 24) = 0 [pid 5189] chdir("./73") = 0 [pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5189] setpgid(0, 0) = 0 [pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5189] write(3, "1000", 4) = 4 [pid 5189] close(3) = 0 [pid 5189] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5189] memfd_create("syzkaller", 0) = 3 [pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5189] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5189] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5189] close(3) = 0 [pid 5189] mkdir("./file0", 0777) = 0 [ 94.726104][ T5189] loop0: detected capacity change from 0 to 8192 [ 94.736920][ T5189] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 94.749976][ T5189] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 94.759264][ T5189] REISERFS (device loop0): using ordered data mode [ 94.765805][ T5189] reiserfs: using flush barriers [pid 5189] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5189] chdir("./file0") = 0 [pid 5189] ioctl(4, LOOP_CLR_FD) = 0 [pid 5189] close(4) = 0 [pid 5189] mkdir(".", 0777) = -1 EEXIST (File exists) [ 94.772250][ T5189] 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 [ 94.788975][ T5189] REISERFS (device loop0): checking transaction log (loop0) [ 94.797564][ T5189] REISERFS (device loop0): Using r5 hash to sort names [ 94.811023][ T5189] reiserfs: enabling write barrier flush mode [pid 5189] mount(NULL, ".", 0x200000c0, 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 5189] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5189] chdir(".") = 0 [pid 5189] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5189] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5189] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5189] close(3) = 0 [pid 5189] close(4) = 0 [pid 5189] close(5) = 0 [pid 5189] close(6) = -1 EBADF (Bad file descriptor) [pid 5189] close(7) = -1 EBADF (Bad file descriptor) [pid 5189] close(8) = -1 EBADF (Bad file descriptor) [pid 5189] close(9) = -1 EBADF (Bad file descriptor) [pid 5189] close(10) = -1 EBADF (Bad file descriptor) [pid 5189] close(11) = -1 EBADF (Bad file descriptor) [pid 5189] close(12) = -1 EBADF (Bad file descriptor) [pid 5189] close(13) = -1 EBADF (Bad file descriptor) [pid 5189] close(14) = -1 EBADF (Bad file descriptor) [pid 5189] close(15) = -1 EBADF (Bad file descriptor) [pid 5189] close(16) = -1 EBADF (Bad file descriptor) [pid 5189] close(17) = -1 EBADF (Bad file descriptor) [pid 5189] close(18) = -1 EBADF (Bad file descriptor) [pid 5189] close(19) = -1 EBADF (Bad file descriptor) [pid 5189] close(20) = -1 EBADF (Bad file descriptor) [pid 5189] close(21) = -1 EBADF (Bad file descriptor) [pid 5189] close(22) = -1 EBADF (Bad file descriptor) [pid 5189] close(23) = -1 EBADF (Bad file descriptor) [pid 5189] close(24) = -1 EBADF (Bad file descriptor) [pid 5189] close(25) = -1 EBADF (Bad file descriptor) [pid 5189] close(26) = -1 EBADF (Bad file descriptor) [pid 5189] close(27) = -1 EBADF (Bad file descriptor) [pid 5189] close(28) = -1 EBADF (Bad file descriptor) [pid 5189] close(29) = -1 EBADF (Bad file descriptor) [pid 5189] exit_group(0) = ? [pid 5189] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=75, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [ 94.821883][ T5189] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./73/binderfs") = 0 [pid 5039] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./73/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./73") = 0 [pid 5039] mkdir("./74", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5191 attached , child_tidptr=0x555555e46650) = 76 [pid 5191] set_robust_list(0x555555e46660, 24) = 0 [pid 5191] chdir("./74") = 0 [pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5191] setpgid(0, 0) = 0 [pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5191] write(3, "1000", 4) = 4 [pid 5191] close(3) = 0 [pid 5191] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5191] memfd_create("syzkaller", 0) = 3 [pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5191] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5191] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5191] close(3) = 0 [pid 5191] mkdir("./file0", 0777) = 0 [ 94.995352][ T5191] loop0: detected capacity change from 0 to 8192 [ 95.005707][ T5191] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.019204][ T5191] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 95.029007][ T5191] REISERFS (device loop0): using ordered data mode [ 95.035606][ T5191] reiserfs: using flush barriers [pid 5191] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5191] chdir("./file0") = 0 [pid 5191] ioctl(4, LOOP_CLR_FD) = 0 [pid 5191] close(4) = 0 [pid 5191] mkdir(".", 0777) = -1 EEXIST (File exists) [ 95.042009][ T5191] 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 [ 95.058729][ T5191] REISERFS (device loop0): checking transaction log (loop0) [ 95.067181][ T5191] REISERFS (device loop0): Using r5 hash to sort names [ 95.080671][ T5191] reiserfs: enabling write barrier flush mode [pid 5191] mount(NULL, ".", 0x200000c0, 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 5191] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5191] chdir(".") = 0 [pid 5191] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5191] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5191] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5191] close(3) = 0 [pid 5191] close(4) = 0 [pid 5191] close(5) = 0 [pid 5191] close(6) = -1 EBADF (Bad file descriptor) [pid 5191] close(7) = -1 EBADF (Bad file descriptor) [pid 5191] close(8) = -1 EBADF (Bad file descriptor) [pid 5191] close(9) = -1 EBADF (Bad file descriptor) [pid 5191] close(10) = -1 EBADF (Bad file descriptor) [pid 5191] close(11) = -1 EBADF (Bad file descriptor) [pid 5191] close(12) = -1 EBADF (Bad file descriptor) [pid 5191] close(13) = -1 EBADF (Bad file descriptor) [pid 5191] close(14) = -1 EBADF (Bad file descriptor) [pid 5191] close(15) = -1 EBADF (Bad file descriptor) [pid 5191] close(16) = -1 EBADF (Bad file descriptor) [pid 5191] close(17) = -1 EBADF (Bad file descriptor) [pid 5191] close(18) = -1 EBADF (Bad file descriptor) [pid 5191] close(19) = -1 EBADF (Bad file descriptor) [pid 5191] close(20) = -1 EBADF (Bad file descriptor) [pid 5191] close(21) = -1 EBADF (Bad file descriptor) [pid 5191] close(22) = -1 EBADF (Bad file descriptor) [pid 5191] close(23) = -1 EBADF (Bad file descriptor) [pid 5191] close(24) = -1 EBADF (Bad file descriptor) [pid 5191] close(25) = -1 EBADF (Bad file descriptor) [pid 5191] close(26) = -1 EBADF (Bad file descriptor) [pid 5191] close(27) = -1 EBADF (Bad file descriptor) [pid 5191] close(28) = -1 EBADF (Bad file descriptor) [pid 5191] close(29) = -1 EBADF (Bad file descriptor) [pid 5191] exit_group(0) = ? [pid 5191] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=76, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 95.091481][ T5191] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] unlink("./74/binderfs") = 0 [pid 5039] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./74/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./74/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./74") = 0 [pid 5039] mkdir("./75", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5193 attached [pid 5193] set_robust_list(0x555555e46660, 24) = 0 [pid 5193] chdir("./75") = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 77 [pid 5193] <... openat resumed>) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5193] memfd_create("syzkaller", 0) = 3 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5193] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5193] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5193] close(3) = 0 [pid 5193] mkdir("./file0", 0777) = 0 [ 95.275453][ T5193] loop0: detected capacity change from 0 to 8192 [ 95.287140][ T5193] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.300332][ T5193] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 95.309880][ T5193] REISERFS (device loop0): using ordered data mode [ 95.316467][ T5193] reiserfs: using flush barriers [pid 5193] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5193] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5193] chdir("./file0") = 0 [pid 5193] ioctl(4, LOOP_CLR_FD) = 0 [pid 5193] close(4) = 0 [pid 5193] mkdir(".", 0777) = -1 EEXIST (File exists) [ 95.322767][ T5193] 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 [ 95.339400][ T5193] REISERFS (device loop0): checking transaction log (loop0) [ 95.347805][ T5193] REISERFS (device loop0): Using r5 hash to sort names [ 95.367641][ T5193] reiserfs: enabling write barrier flush mode [pid 5193] mount(NULL, ".", 0x200000c0, 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 5193] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5193] chdir(".") = 0 [pid 5193] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5193] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5193] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5193] close(3) = 0 [pid 5193] close(4) = 0 [pid 5193] close(5) = 0 [pid 5193] close(6) = -1 EBADF (Bad file descriptor) [pid 5193] close(7) = -1 EBADF (Bad file descriptor) [pid 5193] close(8) = -1 EBADF (Bad file descriptor) [pid 5193] close(9) = -1 EBADF (Bad file descriptor) [pid 5193] close(10) = -1 EBADF (Bad file descriptor) [pid 5193] close(11) = -1 EBADF (Bad file descriptor) [pid 5193] close(12) = -1 EBADF (Bad file descriptor) [pid 5193] close(13) = -1 EBADF (Bad file descriptor) [pid 5193] close(14) = -1 EBADF (Bad file descriptor) [pid 5193] close(15) = -1 EBADF (Bad file descriptor) [pid 5193] close(16) = -1 EBADF (Bad file descriptor) [pid 5193] close(17) = -1 EBADF (Bad file descriptor) [pid 5193] close(18) = -1 EBADF (Bad file descriptor) [pid 5193] close(19) = -1 EBADF (Bad file descriptor) [pid 5193] close(20) = -1 EBADF (Bad file descriptor) [pid 5193] close(21) = -1 EBADF (Bad file descriptor) [pid 5193] close(22) = -1 EBADF (Bad file descriptor) [pid 5193] close(23) = -1 EBADF (Bad file descriptor) [pid 5193] close(24) = -1 EBADF (Bad file descriptor) [pid 5193] close(25) = -1 EBADF (Bad file descriptor) [pid 5193] close(26) = -1 EBADF (Bad file descriptor) [pid 5193] close(27) = -1 EBADF (Bad file descriptor) [pid 5193] close(28) = -1 EBADF (Bad file descriptor) [pid 5193] close(29) = -1 EBADF (Bad file descriptor) [pid 5193] exit_group(0) = ? [pid 5193] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=77, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./75/binderfs") = 0 [ 95.377090][ T5193] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./75/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./75") = 0 [pid 5039] mkdir("./76", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5195 attached , child_tidptr=0x555555e46650) = 78 [pid 5195] set_robust_list(0x555555e46660, 24) = 0 [pid 5195] chdir("./76") = 0 [pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5195] setpgid(0, 0) = 0 [pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5195] write(3, "1000", 4) = 4 [pid 5195] close(3) = 0 [pid 5195] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5195] memfd_create("syzkaller", 0) = 3 [pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5195] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5195] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5195] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5195] close(3) = 0 [pid 5195] mkdir("./file0", 0777) = 0 [ 95.561484][ T5195] loop0: detected capacity change from 0 to 8192 [ 95.573496][ T5195] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.586665][ T5195] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 95.595924][ T5195] REISERFS (device loop0): using ordered data mode [ 95.602429][ T5195] reiserfs: using flush barriers [pid 5195] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5195] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5195] chdir("./file0") = 0 [pid 5195] ioctl(4, LOOP_CLR_FD) = 0 [pid 5195] close(4) = 0 [pid 5195] mkdir(".", 0777) = -1 EEXIST (File exists) [ 95.609042][ T5195] 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 [ 95.625900][ T5195] REISERFS (device loop0): checking transaction log (loop0) [ 95.634102][ T5195] REISERFS (device loop0): Using r5 hash to sort names [ 95.656056][ T5195] reiserfs: enabling write barrier flush mode [pid 5195] mount(NULL, ".", 0x200000c0, 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 5195] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5195] chdir(".") = 0 [pid 5195] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5195] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5195] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5195] close(3) = 0 [pid 5195] close(4) = 0 [pid 5195] close(5) = 0 [pid 5195] close(6) = -1 EBADF (Bad file descriptor) [pid 5195] close(7) = -1 EBADF (Bad file descriptor) [pid 5195] close(8) = -1 EBADF (Bad file descriptor) [pid 5195] close(9) = -1 EBADF (Bad file descriptor) [pid 5195] close(10) = -1 EBADF (Bad file descriptor) [pid 5195] close(11) = -1 EBADF (Bad file descriptor) [pid 5195] close(12) = -1 EBADF (Bad file descriptor) [pid 5195] close(13) = -1 EBADF (Bad file descriptor) [pid 5195] close(14) = -1 EBADF (Bad file descriptor) [pid 5195] close(15) = -1 EBADF (Bad file descriptor) [pid 5195] close(16) = -1 EBADF (Bad file descriptor) [pid 5195] close(17) = -1 EBADF (Bad file descriptor) [pid 5195] close(18) = -1 EBADF (Bad file descriptor) [pid 5195] close(19) = -1 EBADF (Bad file descriptor) [pid 5195] close(20) = -1 EBADF (Bad file descriptor) [pid 5195] close(21) = -1 EBADF (Bad file descriptor) [pid 5195] close(22) = -1 EBADF (Bad file descriptor) [pid 5195] close(23) = -1 EBADF (Bad file descriptor) [pid 5195] close(24) = -1 EBADF (Bad file descriptor) [pid 5195] close(25) = -1 EBADF (Bad file descriptor) [pid 5195] close(26) = -1 EBADF (Bad file descriptor) [pid 5195] close(27) = -1 EBADF (Bad file descriptor) [pid 5195] close(28) = -1 EBADF (Bad file descriptor) [pid 5195] close(29) = -1 EBADF (Bad file descriptor) [pid 5195] exit_group(0) = ? [pid 5195] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=78, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./76/binderfs") = 0 [ 95.667409][ T5195] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./76/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./76") = 0 [pid 5039] mkdir("./77", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5197 attached , child_tidptr=0x555555e46650) = 79 [pid 5197] set_robust_list(0x555555e46660, 24) = 0 [pid 5197] chdir("./77") = 0 [pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5197] setpgid(0, 0) = 0 [pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5197] write(3, "1000", 4) = 4 [pid 5197] close(3) = 0 [pid 5197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5197] memfd_create("syzkaller", 0) = 3 [pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5197] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5197] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5197] close(3) = 0 [pid 5197] mkdir("./file0", 0777) = 0 [ 95.837761][ T5197] loop0: detected capacity change from 0 to 8192 [ 95.847810][ T5197] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 95.860958][ T5197] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 95.870335][ T5197] REISERFS (device loop0): using ordered data mode [ 95.876911][ T5197] reiserfs: using flush barriers [pid 5197] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5197] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5197] chdir("./file0") = 0 [pid 5197] ioctl(4, LOOP_CLR_FD) = 0 [pid 5197] close(4) = 0 [pid 5197] mkdir(".", 0777) = -1 EEXIST (File exists) [ 95.883457][ T5197] 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 [ 95.900001][ T5197] REISERFS (device loop0): checking transaction log (loop0) [ 95.908467][ T5197] REISERFS (device loop0): Using r5 hash to sort names [ 95.931827][ T5197] reiserfs: enabling write barrier flush mode [pid 5197] mount(NULL, ".", 0x200000c0, 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 5197] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5197] chdir(".") = 0 [pid 5197] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5197] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5197] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5197] close(3) = 0 [pid 5197] close(4) = 0 [pid 5197] close(5) = 0 [pid 5197] close(6) = -1 EBADF (Bad file descriptor) [pid 5197] close(7) = -1 EBADF (Bad file descriptor) [pid 5197] close(8) = -1 EBADF (Bad file descriptor) [pid 5197] close(9) = -1 EBADF (Bad file descriptor) [pid 5197] close(10) = -1 EBADF (Bad file descriptor) [pid 5197] close(11) = -1 EBADF (Bad file descriptor) [pid 5197] close(12) = -1 EBADF (Bad file descriptor) [pid 5197] close(13) = -1 EBADF (Bad file descriptor) [pid 5197] close(14) = -1 EBADF (Bad file descriptor) [pid 5197] close(15) = -1 EBADF (Bad file descriptor) [pid 5197] close(16) = -1 EBADF (Bad file descriptor) [pid 5197] close(17) = -1 EBADF (Bad file descriptor) [pid 5197] close(18) = -1 EBADF (Bad file descriptor) [pid 5197] close(19) = -1 EBADF (Bad file descriptor) [pid 5197] close(20) = -1 EBADF (Bad file descriptor) [pid 5197] close(21) = -1 EBADF (Bad file descriptor) [pid 5197] close(22) = -1 EBADF (Bad file descriptor) [pid 5197] close(23) = -1 EBADF (Bad file descriptor) [pid 5197] close(24) = -1 EBADF (Bad file descriptor) [pid 5197] close(25) = -1 EBADF (Bad file descriptor) [pid 5197] close(26) = -1 EBADF (Bad file descriptor) [pid 5197] close(27) = -1 EBADF (Bad file descriptor) [pid 5197] close(28) = -1 EBADF (Bad file descriptor) [pid 5197] close(29) = -1 EBADF (Bad file descriptor) [pid 5197] exit_group(0) = ? [pid 5197] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=79, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./77/binderfs") = 0 [ 95.942825][ T5197] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./77/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./77/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./77") = 0 [pid 5039] mkdir("./78", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5199 attached , child_tidptr=0x555555e46650) = 80 [pid 5199] set_robust_list(0x555555e46660, 24) = 0 [pid 5199] chdir("./78") = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5199] memfd_create("syzkaller", 0) = 3 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5199] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5199] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5199] close(3) = 0 [pid 5199] mkdir("./file0", 0777) = 0 [ 96.108763][ T5199] loop0: detected capacity change from 0 to 8192 [ 96.119167][ T5199] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.132402][ T5199] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 96.141786][ T5199] REISERFS (device loop0): using ordered data mode [ 96.148338][ T5199] reiserfs: using flush barriers [pid 5199] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5199] chdir("./file0") = 0 [pid 5199] ioctl(4, LOOP_CLR_FD) = 0 [pid 5199] close(4) = 0 [pid 5199] mkdir(".", 0777) = -1 EEXIST (File exists) [ 96.154717][ T5199] 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 [ 96.171414][ T5199] REISERFS (device loop0): checking transaction log (loop0) [ 96.179628][ T5199] REISERFS (device loop0): Using r5 hash to sort names [ 96.197212][ T5199] reiserfs: enabling write barrier flush mode [pid 5199] mount(NULL, ".", 0x200000c0, 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 5199] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5199] chdir(".") = 0 [pid 5199] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5199] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5199] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5199] close(3) = 0 [pid 5199] close(4) = 0 [pid 5199] close(5) = 0 [pid 5199] close(6) = -1 EBADF (Bad file descriptor) [pid 5199] close(7) = -1 EBADF (Bad file descriptor) [pid 5199] close(8) = -1 EBADF (Bad file descriptor) [pid 5199] close(9) = -1 EBADF (Bad file descriptor) [pid 5199] close(10) = -1 EBADF (Bad file descriptor) [pid 5199] close(11) = -1 EBADF (Bad file descriptor) [pid 5199] close(12) = -1 EBADF (Bad file descriptor) [pid 5199] close(13) = -1 EBADF (Bad file descriptor) [pid 5199] close(14) = -1 EBADF (Bad file descriptor) [pid 5199] close(15) = -1 EBADF (Bad file descriptor) [pid 5199] close(16) = -1 EBADF (Bad file descriptor) [pid 5199] close(17) = -1 EBADF (Bad file descriptor) [pid 5199] close(18) = -1 EBADF (Bad file descriptor) [pid 5199] close(19) = -1 EBADF (Bad file descriptor) [pid 5199] close(20) = -1 EBADF (Bad file descriptor) [pid 5199] close(21) = -1 EBADF (Bad file descriptor) [pid 5199] close(22) = -1 EBADF (Bad file descriptor) [pid 5199] close(23) = -1 EBADF (Bad file descriptor) [pid 5199] close(24) = -1 EBADF (Bad file descriptor) [pid 5199] close(25) = -1 EBADF (Bad file descriptor) [pid 5199] close(26) = -1 EBADF (Bad file descriptor) [pid 5199] close(27) = -1 EBADF (Bad file descriptor) [pid 5199] close(28) = -1 EBADF (Bad file descriptor) [pid 5199] close(29) = -1 EBADF (Bad file descriptor) [pid 5199] exit_group(0) = ? [pid 5199] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=80, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./78/binderfs") = 0 [ 96.209101][ T5199] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./78/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./78") = 0 [pid 5039] mkdir("./79", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5201 attached , child_tidptr=0x555555e46650) = 81 [pid 5201] set_robust_list(0x555555e46660, 24) = 0 [pid 5201] chdir("./79") = 0 [pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5201] setpgid(0, 0) = 0 [pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5201] write(3, "1000", 4) = 4 [pid 5201] close(3) = 0 [pid 5201] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5201] memfd_create("syzkaller", 0) = 3 [pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5201] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5201] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5201] close(3) = 0 [pid 5201] mkdir("./file0", 0777) = 0 [ 96.393800][ T5201] loop0: detected capacity change from 0 to 8192 [ 96.405794][ T5201] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.418837][ T5201] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 96.428182][ T5201] REISERFS (device loop0): using ordered data mode [ 96.434715][ T5201] reiserfs: using flush barriers [pid 5201] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5201] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5201] chdir("./file0") = 0 [pid 5201] ioctl(4, LOOP_CLR_FD) = 0 [pid 5201] close(4) = 0 [pid 5201] mkdir(".", 0777) = -1 EEXIST (File exists) [ 96.441111][ T5201] 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 [ 96.458142][ T5201] REISERFS (device loop0): checking transaction log (loop0) [ 96.466252][ T5201] REISERFS (device loop0): Using r5 hash to sort names [pid 5201] mount(NULL, ".", 0x200000c0, 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 5201] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5201] chdir(".") = 0 [pid 5201] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5201] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5201] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5201] close(3) = 0 [pid 5201] close(4) = 0 [pid 5201] close(5) = 0 [pid 5201] close(6) = -1 EBADF (Bad file descriptor) [pid 5201] close(7) = -1 EBADF (Bad file descriptor) [pid 5201] close(8) = -1 EBADF (Bad file descriptor) [pid 5201] close(9) = -1 EBADF (Bad file descriptor) [pid 5201] close(10) = -1 EBADF (Bad file descriptor) [pid 5201] close(11) = -1 EBADF (Bad file descriptor) [pid 5201] close(12) = -1 EBADF (Bad file descriptor) [pid 5201] close(13) = -1 EBADF (Bad file descriptor) [pid 5201] close(14) = -1 EBADF (Bad file descriptor) [pid 5201] close(15) = -1 EBADF (Bad file descriptor) [pid 5201] close(16) = -1 EBADF (Bad file descriptor) [pid 5201] close(17) = -1 EBADF (Bad file descriptor) [pid 5201] close(18) = -1 EBADF (Bad file descriptor) [pid 5201] close(19) = -1 EBADF (Bad file descriptor) [pid 5201] close(20) = -1 EBADF (Bad file descriptor) [pid 5201] close(21) = -1 EBADF (Bad file descriptor) [pid 5201] close(22) = -1 EBADF (Bad file descriptor) [pid 5201] close(23) = -1 EBADF (Bad file descriptor) [pid 5201] close(24) = -1 EBADF (Bad file descriptor) [pid 5201] close(25) = -1 EBADF (Bad file descriptor) [pid 5201] close(26) = -1 EBADF (Bad file descriptor) [pid 5201] close(27) = -1 EBADF (Bad file descriptor) [pid 5201] close(28) = -1 EBADF (Bad file descriptor) [pid 5201] close(29) = -1 EBADF (Bad file descriptor) [pid 5201] exit_group(0) = ? [pid 5201] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=81, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./79/binderfs") = 0 [ 96.488724][ T5201] reiserfs: enabling write barrier flush mode [ 96.497565][ T5201] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./79/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./79") = 0 [pid 5039] mkdir("./80", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 82 ./strace-static-x86_64: Process 5203 attached [pid 5203] set_robust_list(0x555555e46660, 24) = 0 [pid 5203] chdir("./80") = 0 [pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5203] setpgid(0, 0) = 0 [pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5203] write(3, "1000", 4) = 4 [pid 5203] close(3) = 0 [pid 5203] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5203] memfd_create("syzkaller", 0) = 3 [pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5203] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5203] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5203] close(3) = 0 [pid 5203] mkdir("./file0", 0777) = 0 [ 96.693488][ T5203] loop0: detected capacity change from 0 to 8192 [ 96.704587][ T5203] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.717932][ T5203] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 96.727461][ T5203] REISERFS (device loop0): using ordered data mode [ 96.733979][ T5203] reiserfs: using flush barriers [pid 5203] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5203] chdir("./file0") = 0 [pid 5203] ioctl(4, LOOP_CLR_FD) = 0 [pid 5203] close(4) = 0 [pid 5203] mkdir(".", 0777) = -1 EEXIST (File exists) [ 96.740762][ T5203] 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 [ 96.757292][ T5203] REISERFS (device loop0): checking transaction log (loop0) [ 96.765808][ T5203] REISERFS (device loop0): Using r5 hash to sort names [ 96.785874][ T5203] reiserfs: enabling write barrier flush mode [pid 5203] mount(NULL, ".", 0x200000c0, 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 5203] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5203] chdir(".") = 0 [pid 5203] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5203] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5203] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5203] close(3) = 0 [pid 5203] close(4) = 0 [pid 5203] close(5) = 0 [pid 5203] close(6) = -1 EBADF (Bad file descriptor) [pid 5203] close(7) = -1 EBADF (Bad file descriptor) [pid 5203] close(8) = -1 EBADF (Bad file descriptor) [pid 5203] close(9) = -1 EBADF (Bad file descriptor) [pid 5203] close(10) = -1 EBADF (Bad file descriptor) [pid 5203] close(11) = -1 EBADF (Bad file descriptor) [pid 5203] close(12) = -1 EBADF (Bad file descriptor) [pid 5203] close(13) = -1 EBADF (Bad file descriptor) [pid 5203] close(14) = -1 EBADF (Bad file descriptor) [pid 5203] close(15) = -1 EBADF (Bad file descriptor) [pid 5203] close(16) = -1 EBADF (Bad file descriptor) [pid 5203] close(17) = -1 EBADF (Bad file descriptor) [pid 5203] close(18) = -1 EBADF (Bad file descriptor) [pid 5203] close(19) = -1 EBADF (Bad file descriptor) [pid 5203] close(20) = -1 EBADF (Bad file descriptor) [pid 5203] close(21) = -1 EBADF (Bad file descriptor) [pid 5203] close(22) = -1 EBADF (Bad file descriptor) [pid 5203] close(23) = -1 EBADF (Bad file descriptor) [pid 5203] close(24) = -1 EBADF (Bad file descriptor) [pid 5203] close(25) = -1 EBADF (Bad file descriptor) [pid 5203] close(26) = -1 EBADF (Bad file descriptor) [pid 5203] close(27) = -1 EBADF (Bad file descriptor) [pid 5203] close(28) = -1 EBADF (Bad file descriptor) [pid 5203] close(29) = -1 EBADF (Bad file descriptor) [pid 5203] exit_group(0) = ? [pid 5203] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=82, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./80/binderfs") = 0 [ 96.795722][ T5203] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./80/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./80/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./80") = 0 [pid 5039] mkdir("./81", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 83 ./strace-static-x86_64: Process 5205 attached [pid 5205] set_robust_list(0x555555e46660, 24) = 0 [pid 5205] chdir("./81") = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5205] setpgid(0, 0) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5205] memfd_create("syzkaller", 0) = 3 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5205] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5205] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5205] close(3) = 0 [pid 5205] mkdir("./file0", 0777) = 0 [ 96.967393][ T5205] loop0: detected capacity change from 0 to 8192 [ 96.979649][ T5205] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 96.992717][ T5205] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 97.002266][ T5205] REISERFS (device loop0): using ordered data mode [ 97.009148][ T5205] reiserfs: using flush barriers [pid 5205] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5205] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5205] chdir("./file0") = 0 [pid 5205] ioctl(4, LOOP_CLR_FD) = 0 [pid 5205] close(4) = 0 [pid 5205] mkdir(".", 0777) = -1 EEXIST (File exists) [ 97.016167][ T5205] 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 [ 97.032645][ T5205] REISERFS (device loop0): checking transaction log (loop0) [ 97.041745][ T5205] REISERFS (device loop0): Using r5 hash to sort names [ 97.052656][ T5205] reiserfs: enabling write barrier flush mode [pid 5205] mount(NULL, ".", 0x200000c0, 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 5205] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5205] chdir(".") = 0 [pid 5205] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5205] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5205] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5205] close(3) = 0 [pid 5205] close(4) = 0 [pid 5205] close(5) = 0 [pid 5205] close(6) = -1 EBADF (Bad file descriptor) [pid 5205] close(7) = -1 EBADF (Bad file descriptor) [pid 5205] close(8) = -1 EBADF (Bad file descriptor) [pid 5205] close(9) = -1 EBADF (Bad file descriptor) [pid 5205] close(10) = -1 EBADF (Bad file descriptor) [pid 5205] close(11) = -1 EBADF (Bad file descriptor) [pid 5205] close(12) = -1 EBADF (Bad file descriptor) [pid 5205] close(13) = -1 EBADF (Bad file descriptor) [pid 5205] close(14) = -1 EBADF (Bad file descriptor) [pid 5205] close(15) = -1 EBADF (Bad file descriptor) [pid 5205] close(16) = -1 EBADF (Bad file descriptor) [pid 5205] close(17) = -1 EBADF (Bad file descriptor) [pid 5205] close(18) = -1 EBADF (Bad file descriptor) [pid 5205] close(19) = -1 EBADF (Bad file descriptor) [pid 5205] close(20) = -1 EBADF (Bad file descriptor) [pid 5205] close(21) = -1 EBADF (Bad file descriptor) [pid 5205] close(22) = -1 EBADF (Bad file descriptor) [pid 5205] close(23) = -1 EBADF (Bad file descriptor) [pid 5205] close(24) = -1 EBADF (Bad file descriptor) [pid 5205] close(25) = -1 EBADF (Bad file descriptor) [pid 5205] close(26) = -1 EBADF (Bad file descriptor) [pid 5205] close(27) = -1 EBADF (Bad file descriptor) [pid 5205] close(28) = -1 EBADF (Bad file descriptor) [pid 5205] close(29) = -1 EBADF (Bad file descriptor) [pid 5205] exit_group(0) = ? [pid 5205] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=83, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./81/binderfs") = 0 [ 97.063821][ T5205] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./81/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./81") = 0 [pid 5039] mkdir("./82", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5207 attached , child_tidptr=0x555555e46650) = 84 [pid 5207] set_robust_list(0x555555e46660, 24) = 0 [pid 5207] chdir("./82") = 0 [pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5207] setpgid(0, 0) = 0 [pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5207] write(3, "1000", 4) = 4 [pid 5207] close(3) = 0 [pid 5207] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5207] memfd_create("syzkaller", 0) = 3 [pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5207] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5207] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5207] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5207] close(3) = 0 [pid 5207] mkdir("./file0", 0777) = 0 [ 97.217301][ T5207] loop0: detected capacity change from 0 to 8192 [ 97.228277][ T5207] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.241324][ T5207] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 97.250687][ T5207] REISERFS (device loop0): using ordered data mode [ 97.257222][ T5207] reiserfs: using flush barriers [pid 5207] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5207] chdir("./file0") = 0 [pid 5207] ioctl(4, LOOP_CLR_FD) = 0 [pid 5207] close(4) = 0 [pid 5207] mkdir(".", 0777) = -1 EEXIST (File exists) [ 97.263585][ T5207] 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 [ 97.280328][ T5207] REISERFS (device loop0): checking transaction log (loop0) [ 97.288846][ T5207] REISERFS (device loop0): Using r5 hash to sort names [ 97.307014][ T5207] reiserfs: enabling write barrier flush mode [pid 5207] mount(NULL, ".", 0x200000c0, 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 5207] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5207] chdir(".") = 0 [pid 5207] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5207] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5207] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5207] close(3) = 0 [pid 5207] close(4) = 0 [pid 5207] close(5) = 0 [pid 5207] close(6) = -1 EBADF (Bad file descriptor) [pid 5207] close(7) = -1 EBADF (Bad file descriptor) [pid 5207] close(8) = -1 EBADF (Bad file descriptor) [pid 5207] close(9) = -1 EBADF (Bad file descriptor) [pid 5207] close(10) = -1 EBADF (Bad file descriptor) [pid 5207] close(11) = -1 EBADF (Bad file descriptor) [pid 5207] close(12) = -1 EBADF (Bad file descriptor) [pid 5207] close(13) = -1 EBADF (Bad file descriptor) [pid 5207] close(14) = -1 EBADF (Bad file descriptor) [pid 5207] close(15) = -1 EBADF (Bad file descriptor) [pid 5207] close(16) = -1 EBADF (Bad file descriptor) [pid 5207] close(17) = -1 EBADF (Bad file descriptor) [pid 5207] close(18) = -1 EBADF (Bad file descriptor) [pid 5207] close(19) = -1 EBADF (Bad file descriptor) [pid 5207] close(20) = -1 EBADF (Bad file descriptor) [pid 5207] close(21) = -1 EBADF (Bad file descriptor) [pid 5207] close(22) = -1 EBADF (Bad file descriptor) [pid 5207] close(23) = -1 EBADF (Bad file descriptor) [pid 5207] close(24) = -1 EBADF (Bad file descriptor) [pid 5207] close(25) = -1 EBADF (Bad file descriptor) [pid 5207] close(26) = -1 EBADF (Bad file descriptor) [pid 5207] close(27) = -1 EBADF (Bad file descriptor) [pid 5207] close(28) = -1 EBADF (Bad file descriptor) [pid 5207] close(29) = -1 EBADF (Bad file descriptor) [pid 5207] exit_group(0) = ? [pid 5207] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=84, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./82/binderfs") = 0 [ 97.317820][ T5207] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./82/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./82/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./82") = 0 [pid 5039] mkdir("./83", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5209 attached , child_tidptr=0x555555e46650) = 85 [pid 5209] set_robust_list(0x555555e46660, 24) = 0 [pid 5209] chdir("./83") = 0 [pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5209] setpgid(0, 0) = 0 [pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5209] write(3, "1000", 4) = 4 [pid 5209] close(3) = 0 [pid 5209] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5209] memfd_create("syzkaller", 0) = 3 [pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5209] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5209] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5209] close(3) = 0 [pid 5209] mkdir("./file0", 0777) = 0 [ 97.483544][ T5209] loop0: detected capacity change from 0 to 8192 [ 97.494338][ T5209] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.507490][ T5209] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 97.516870][ T5209] REISERFS (device loop0): using ordered data mode [ 97.523388][ T5209] reiserfs: using flush barriers [pid 5209] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5209] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5209] chdir("./file0") = 0 [pid 5209] ioctl(4, LOOP_CLR_FD) = 0 [pid 5209] close(4) = 0 [pid 5209] mkdir(".", 0777) = -1 EEXIST (File exists) [ 97.530170][ T5209] 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 [ 97.546754][ T5209] REISERFS (device loop0): checking transaction log (loop0) [ 97.555361][ T5209] REISERFS (device loop0): Using r5 hash to sort names [ 97.569260][ T5209] reiserfs: enabling write barrier flush mode [pid 5209] mount(NULL, ".", 0x200000c0, 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 5209] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5209] chdir(".") = 0 [pid 5209] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5209] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5209] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5209] close(3) = 0 [pid 5209] close(4) = 0 [pid 5209] close(5) = 0 [pid 5209] close(6) = -1 EBADF (Bad file descriptor) [pid 5209] close(7) = -1 EBADF (Bad file descriptor) [pid 5209] close(8) = -1 EBADF (Bad file descriptor) [pid 5209] close(9) = -1 EBADF (Bad file descriptor) [pid 5209] close(10) = -1 EBADF (Bad file descriptor) [pid 5209] close(11) = -1 EBADF (Bad file descriptor) [pid 5209] close(12) = -1 EBADF (Bad file descriptor) [pid 5209] close(13) = -1 EBADF (Bad file descriptor) [pid 5209] close(14) = -1 EBADF (Bad file descriptor) [pid 5209] close(15) = -1 EBADF (Bad file descriptor) [pid 5209] close(16) = -1 EBADF (Bad file descriptor) [pid 5209] close(17) = -1 EBADF (Bad file descriptor) [pid 5209] close(18) = -1 EBADF (Bad file descriptor) [pid 5209] close(19) = -1 EBADF (Bad file descriptor) [pid 5209] close(20) = -1 EBADF (Bad file descriptor) [pid 5209] close(21) = -1 EBADF (Bad file descriptor) [pid 5209] close(22) = -1 EBADF (Bad file descriptor) [pid 5209] close(23) = -1 EBADF (Bad file descriptor) [pid 5209] close(24) = -1 EBADF (Bad file descriptor) [pid 5209] close(25) = -1 EBADF (Bad file descriptor) [pid 5209] close(26) = -1 EBADF (Bad file descriptor) [pid 5209] close(27) = -1 EBADF (Bad file descriptor) [pid 5209] close(28) = -1 EBADF (Bad file descriptor) [pid 5209] close(29) = -1 EBADF (Bad file descriptor) [pid 5209] exit_group(0) = ? [pid 5209] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=85, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./83/binderfs") = 0 [ 97.581425][ T5209] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./83/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./83/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./83") = 0 [pid 5039] mkdir("./84", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5211 attached , child_tidptr=0x555555e46650) = 86 [pid 5211] set_robust_list(0x555555e46660, 24) = 0 [pid 5211] chdir("./84") = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5211] memfd_create("syzkaller", 0) = 3 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5211] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5211] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5211] close(3) = 0 [pid 5211] mkdir("./file0", 0777) = 0 [ 97.758561][ T5211] loop0: detected capacity change from 0 to 8192 [ 97.769305][ T5211] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 97.782697][ T5211] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 97.792251][ T5211] REISERFS (device loop0): using ordered data mode [ 97.799110][ T5211] reiserfs: using flush barriers [pid 5211] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5211] chdir("./file0") = 0 [pid 5211] ioctl(4, LOOP_CLR_FD) = 0 [pid 5211] close(4) = 0 [pid 5211] mkdir(".", 0777) = -1 EEXIST (File exists) [ 97.805781][ T5211] 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 [ 97.822385][ T5211] REISERFS (device loop0): checking transaction log (loop0) [ 97.830699][ T5211] REISERFS (device loop0): Using r5 hash to sort names [pid 5211] mount(NULL, ".", 0x200000c0, 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 5211] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5211] chdir(".") = 0 [pid 5211] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5211] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5211] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5211] close(3) = 0 [pid 5211] close(4) = 0 [pid 5211] close(5) = 0 [pid 5211] close(6) = -1 EBADF (Bad file descriptor) [pid 5211] close(7) = -1 EBADF (Bad file descriptor) [pid 5211] close(8) = -1 EBADF (Bad file descriptor) [pid 5211] close(9) = -1 EBADF (Bad file descriptor) [pid 5211] close(10) = -1 EBADF (Bad file descriptor) [pid 5211] close(11) = -1 EBADF (Bad file descriptor) [pid 5211] close(12) = -1 EBADF (Bad file descriptor) [pid 5211] close(13) = -1 EBADF (Bad file descriptor) [pid 5211] close(14) = -1 EBADF (Bad file descriptor) [pid 5211] close(15) = -1 EBADF (Bad file descriptor) [pid 5211] close(16) = -1 EBADF (Bad file descriptor) [pid 5211] close(17) = -1 EBADF (Bad file descriptor) [pid 5211] close(18) = -1 EBADF (Bad file descriptor) [pid 5211] close(19) = -1 EBADF (Bad file descriptor) [pid 5211] close(20) = -1 EBADF (Bad file descriptor) [pid 5211] close(21) = -1 EBADF (Bad file descriptor) [pid 5211] close(22) = -1 EBADF (Bad file descriptor) [pid 5211] close(23) = -1 EBADF (Bad file descriptor) [pid 5211] close(24) = -1 EBADF (Bad file descriptor) [pid 5211] close(25) = -1 EBADF (Bad file descriptor) [pid 5211] close(26) = -1 EBADF (Bad file descriptor) [pid 5211] close(27) = -1 EBADF (Bad file descriptor) [pid 5211] close(28) = -1 EBADF (Bad file descriptor) [pid 5211] close(29) = -1 EBADF (Bad file descriptor) [pid 5211] exit_group(0) = ? [pid 5211] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=86, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5039] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./84/binderfs") = 0 [ 97.853262][ T5211] reiserfs: enabling write barrier flush mode [ 97.862942][ T5211] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./84/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./84/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./84") = 0 [pid 5039] mkdir("./85", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5213 attached , child_tidptr=0x555555e46650) = 87 [pid 5213] set_robust_list(0x555555e46660, 24) = 0 [pid 5213] chdir("./85") = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5213] close(3) = 0 [pid 5213] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5213] memfd_create("syzkaller", 0) = 3 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5213] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5213] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5213] close(3) = 0 [pid 5213] mkdir("./file0", 0777) = 0 [ 98.029531][ T5213] loop0: detected capacity change from 0 to 8192 [ 98.040099][ T5213] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.053167][ T5213] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 98.062508][ T5213] REISERFS (device loop0): using ordered data mode [ 98.069071][ T5213] reiserfs: using flush barriers [pid 5213] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5213] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5213] chdir("./file0") = 0 [pid 5213] ioctl(4, LOOP_CLR_FD) = 0 [pid 5213] close(4) = 0 [pid 5213] mkdir(".", 0777) = -1 EEXIST (File exists) [ 98.075571][ T5213] 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 [ 98.092074][ T5213] REISERFS (device loop0): checking transaction log (loop0) [ 98.100797][ T5213] REISERFS (device loop0): Using r5 hash to sort names [ 98.114053][ T5213] reiserfs: enabling write barrier flush mode [pid 5213] mount(NULL, ".", 0x200000c0, 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 5213] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5213] chdir(".") = 0 [pid 5213] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5213] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5213] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5213] close(3) = 0 [pid 5213] close(4) = 0 [pid 5213] close(5) = 0 [pid 5213] close(6) = -1 EBADF (Bad file descriptor) [pid 5213] close(7) = -1 EBADF (Bad file descriptor) [pid 5213] close(8) = -1 EBADF (Bad file descriptor) [pid 5213] close(9) = -1 EBADF (Bad file descriptor) [pid 5213] close(10) = -1 EBADF (Bad file descriptor) [pid 5213] close(11) = -1 EBADF (Bad file descriptor) [pid 5213] close(12) = -1 EBADF (Bad file descriptor) [pid 5213] close(13) = -1 EBADF (Bad file descriptor) [pid 5213] close(14) = -1 EBADF (Bad file descriptor) [pid 5213] close(15) = -1 EBADF (Bad file descriptor) [pid 5213] close(16) = -1 EBADF (Bad file descriptor) [pid 5213] close(17) = -1 EBADF (Bad file descriptor) [pid 5213] close(18) = -1 EBADF (Bad file descriptor) [pid 5213] close(19) = -1 EBADF (Bad file descriptor) [pid 5213] close(20) = -1 EBADF (Bad file descriptor) [pid 5213] close(21) = -1 EBADF (Bad file descriptor) [pid 5213] close(22) = -1 EBADF (Bad file descriptor) [pid 5213] close(23) = -1 EBADF (Bad file descriptor) [pid 5213] close(24) = -1 EBADF (Bad file descriptor) [pid 5213] close(25) = -1 EBADF (Bad file descriptor) [pid 5213] close(26) = -1 EBADF (Bad file descriptor) [pid 5213] close(27) = -1 EBADF (Bad file descriptor) [pid 5213] close(28) = -1 EBADF (Bad file descriptor) [pid 5213] close(29) = -1 EBADF (Bad file descriptor) [pid 5213] exit_group(0) = ? [pid 5213] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=87, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./85/binderfs") = 0 [ 98.124376][ T5213] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./85/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./85/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./85") = 0 [pid 5039] mkdir("./86", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5215 attached , child_tidptr=0x555555e46650) = 88 [pid 5215] set_robust_list(0x555555e46660, 24) = 0 [pid 5215] chdir("./86") = 0 [pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5215] setpgid(0, 0) = 0 [pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5215] write(3, "1000", 4) = 4 [pid 5215] close(3) = 0 [pid 5215] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5215] memfd_create("syzkaller", 0) = 3 [pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5215] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5215] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5215] close(3) = 0 [pid 5215] mkdir("./file0", 0777) = 0 [ 98.296647][ T5215] loop0: detected capacity change from 0 to 8192 [ 98.307154][ T5215] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.320218][ T5215] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 98.329604][ T5215] REISERFS (device loop0): using ordered data mode [ 98.336233][ T5215] reiserfs: using flush barriers [pid 5215] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5215] chdir("./file0") = 0 [pid 5215] ioctl(4, LOOP_CLR_FD) = 0 [pid 5215] close(4) = 0 [pid 5215] mkdir(".", 0777) = -1 EEXIST (File exists) [ 98.342582][ T5215] 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 [ 98.359811][ T5215] REISERFS (device loop0): checking transaction log (loop0) [ 98.367869][ T5215] REISERFS (device loop0): Using r5 hash to sort names [ 98.381173][ T5215] reiserfs: enabling write barrier flush mode [pid 5215] mount(NULL, ".", 0x200000c0, 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 5215] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5215] chdir(".") = 0 [pid 5215] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5215] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5215] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5215] close(3) = 0 [pid 5215] close(4) = 0 [pid 5215] close(5) = 0 [pid 5215] close(6) = -1 EBADF (Bad file descriptor) [pid 5215] close(7) = -1 EBADF (Bad file descriptor) [pid 5215] close(8) = -1 EBADF (Bad file descriptor) [pid 5215] close(9) = -1 EBADF (Bad file descriptor) [pid 5215] close(10) = -1 EBADF (Bad file descriptor) [pid 5215] close(11) = -1 EBADF (Bad file descriptor) [pid 5215] close(12) = -1 EBADF (Bad file descriptor) [pid 5215] close(13) = -1 EBADF (Bad file descriptor) [pid 5215] close(14) = -1 EBADF (Bad file descriptor) [pid 5215] close(15) = -1 EBADF (Bad file descriptor) [pid 5215] close(16) = -1 EBADF (Bad file descriptor) [pid 5215] close(17) = -1 EBADF (Bad file descriptor) [pid 5215] close(18) = -1 EBADF (Bad file descriptor) [pid 5215] close(19) = -1 EBADF (Bad file descriptor) [pid 5215] close(20) = -1 EBADF (Bad file descriptor) [pid 5215] close(21) = -1 EBADF (Bad file descriptor) [pid 5215] close(22) = -1 EBADF (Bad file descriptor) [pid 5215] close(23) = -1 EBADF (Bad file descriptor) [pid 5215] close(24) = -1 EBADF (Bad file descriptor) [pid 5215] close(25) = -1 EBADF (Bad file descriptor) [pid 5215] close(26) = -1 EBADF (Bad file descriptor) [pid 5215] close(27) = -1 EBADF (Bad file descriptor) [pid 5215] close(28) = -1 EBADF (Bad file descriptor) [pid 5215] close(29) = -1 EBADF (Bad file descriptor) [pid 5215] exit_group(0) = ? [pid 5215] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=88, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./86/binderfs") = 0 [ 98.391900][ T5215] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./86/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./86/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./86") = 0 [pid 5039] mkdir("./87", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 89 ./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x555555e46660, 24) = 0 [pid 5217] chdir("./87") = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5217] memfd_create("syzkaller", 0) = 3 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5217] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5217] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5217] close(3) = 0 [pid 5217] mkdir("./file0", 0777) = 0 [ 98.557818][ T5217] loop0: detected capacity change from 0 to 8192 [ 98.568890][ T5217] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.581993][ T5217] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 98.591741][ T5217] REISERFS (device loop0): using ordered data mode [ 98.598622][ T5217] reiserfs: using flush barriers [pid 5217] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5217] chdir("./file0") = 0 [pid 5217] ioctl(4, LOOP_CLR_FD) = 0 [pid 5217] close(4) = 0 [pid 5217] mkdir(".", 0777) = -1 EEXIST (File exists) [ 98.605167][ T5217] 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 [ 98.621662][ T5217] REISERFS (device loop0): checking transaction log (loop0) [ 98.630183][ T5217] REISERFS (device loop0): Using r5 hash to sort names [ 98.643080][ T5217] reiserfs: enabling write barrier flush mode [pid 5217] mount(NULL, ".", 0x200000c0, 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 5217] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5217] chdir(".") = 0 [pid 5217] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5217] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5217] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5217] close(3) = 0 [pid 5217] close(4) = 0 [pid 5217] close(5) = 0 [pid 5217] close(6) = -1 EBADF (Bad file descriptor) [pid 5217] close(7) = -1 EBADF (Bad file descriptor) [pid 5217] close(8) = -1 EBADF (Bad file descriptor) [pid 5217] close(9) = -1 EBADF (Bad file descriptor) [pid 5217] close(10) = -1 EBADF (Bad file descriptor) [pid 5217] close(11) = -1 EBADF (Bad file descriptor) [pid 5217] close(12) = -1 EBADF (Bad file descriptor) [pid 5217] close(13) = -1 EBADF (Bad file descriptor) [pid 5217] close(14) = -1 EBADF (Bad file descriptor) [pid 5217] close(15) = -1 EBADF (Bad file descriptor) [pid 5217] close(16) = -1 EBADF (Bad file descriptor) [pid 5217] close(17) = -1 EBADF (Bad file descriptor) [pid 5217] close(18) = -1 EBADF (Bad file descriptor) [pid 5217] close(19) = -1 EBADF (Bad file descriptor) [pid 5217] close(20) = -1 EBADF (Bad file descriptor) [pid 5217] close(21) = -1 EBADF (Bad file descriptor) [pid 5217] close(22) = -1 EBADF (Bad file descriptor) [pid 5217] close(23) = -1 EBADF (Bad file descriptor) [pid 5217] close(24) = -1 EBADF (Bad file descriptor) [pid 5217] close(25) = -1 EBADF (Bad file descriptor) [pid 5217] close(26) = -1 EBADF (Bad file descriptor) [pid 5217] close(27) = -1 EBADF (Bad file descriptor) [pid 5217] close(28) = -1 EBADF (Bad file descriptor) [pid 5217] close(29) = -1 EBADF (Bad file descriptor) [pid 5217] exit_group(0) = ? [pid 5217] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=89, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./87/binderfs") = 0 [ 98.654447][ T5217] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./87/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./87/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./87") = 0 [pid 5039] mkdir("./88", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5219 attached [pid 5219] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 90 [pid 5219] <... set_robust_list resumed>) = 0 [pid 5219] chdir("./88") = 0 [pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5219] setpgid(0, 0) = 0 [pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5219] write(3, "1000", 4) = 4 [pid 5219] close(3) = 0 [pid 5219] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5219] memfd_create("syzkaller", 0) = 3 [pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5219] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5219] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5219] close(3) = 0 [pid 5219] mkdir("./file0", 0777) = 0 [ 98.820794][ T5219] loop0: detected capacity change from 0 to 8192 [ 98.831695][ T5219] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 98.844790][ T5219] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 98.854111][ T5219] REISERFS (device loop0): using ordered data mode [ 98.860666][ T5219] reiserfs: using flush barriers [pid 5219] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5219] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5219] chdir("./file0") = 0 [pid 5219] ioctl(4, LOOP_CLR_FD) = 0 [pid 5219] close(4) = 0 [pid 5219] mkdir(".", 0777) = -1 EEXIST (File exists) [ 98.867169][ T5219] 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 [ 98.883673][ T5219] REISERFS (device loop0): checking transaction log (loop0) [ 98.892542][ T5219] REISERFS (device loop0): Using r5 hash to sort names [ 98.906130][ T5219] reiserfs: enabling write barrier flush mode [pid 5219] mount(NULL, ".", 0x200000c0, 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 5219] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5219] chdir(".") = 0 [pid 5219] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5219] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5219] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5219] close(3) = 0 [pid 5219] close(4) = 0 [pid 5219] close(5) = 0 [pid 5219] close(6) = -1 EBADF (Bad file descriptor) [pid 5219] close(7) = -1 EBADF (Bad file descriptor) [pid 5219] close(8) = -1 EBADF (Bad file descriptor) [pid 5219] close(9) = -1 EBADF (Bad file descriptor) [pid 5219] close(10) = -1 EBADF (Bad file descriptor) [pid 5219] close(11) = -1 EBADF (Bad file descriptor) [pid 5219] close(12) = -1 EBADF (Bad file descriptor) [pid 5219] close(13) = -1 EBADF (Bad file descriptor) [pid 5219] close(14) = -1 EBADF (Bad file descriptor) [pid 5219] close(15) = -1 EBADF (Bad file descriptor) [pid 5219] close(16) = -1 EBADF (Bad file descriptor) [pid 5219] close(17) = -1 EBADF (Bad file descriptor) [pid 5219] close(18) = -1 EBADF (Bad file descriptor) [pid 5219] close(19) = -1 EBADF (Bad file descriptor) [pid 5219] close(20) = -1 EBADF (Bad file descriptor) [pid 5219] close(21) = -1 EBADF (Bad file descriptor) [pid 5219] close(22) = -1 EBADF (Bad file descriptor) [pid 5219] close(23) = -1 EBADF (Bad file descriptor) [pid 5219] close(24) = -1 EBADF (Bad file descriptor) [pid 5219] close(25) = -1 EBADF (Bad file descriptor) [pid 5219] close(26) = -1 EBADF (Bad file descriptor) [pid 5219] close(27) = -1 EBADF (Bad file descriptor) [pid 5219] close(28) = -1 EBADF (Bad file descriptor) [pid 5219] close(29) = -1 EBADF (Bad file descriptor) [pid 5219] exit_group(0) = ? [pid 5219] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=90, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./88/binderfs") = 0 [ 98.918391][ T5219] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./88/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./88/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./88") = 0 [pid 5039] mkdir("./89", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 91 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x555555e46660, 24) = 0 [pid 5221] chdir("./89") = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] memfd_create("syzkaller", 0) = 3 [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5221] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5221] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5221] close(3) = 0 [pid 5221] mkdir("./file0", 0777) = 0 [ 99.085830][ T5221] loop0: detected capacity change from 0 to 8192 [ 99.097523][ T5221] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.110688][ T5221] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 99.120425][ T5221] REISERFS (device loop0): using ordered data mode [ 99.127009][ T5221] reiserfs: using flush barriers [pid 5221] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5221] chdir("./file0") = 0 [pid 5221] ioctl(4, LOOP_CLR_FD) = 0 [pid 5221] close(4) = 0 [pid 5221] mkdir(".", 0777) = -1 EEXIST (File exists) [ 99.133445][ T5221] 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 [ 99.150120][ T5221] REISERFS (device loop0): checking transaction log (loop0) [ 99.158339][ T5221] REISERFS (device loop0): Using r5 hash to sort names [ 99.172129][ T5221] reiserfs: enabling write barrier flush mode [pid 5221] mount(NULL, ".", 0x200000c0, 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 5221] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5221] chdir(".") = 0 [pid 5221] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5221] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5221] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5221] close(3) = 0 [pid 5221] close(4) = 0 [pid 5221] close(5) = 0 [pid 5221] close(6) = -1 EBADF (Bad file descriptor) [pid 5221] close(7) = -1 EBADF (Bad file descriptor) [pid 5221] close(8) = -1 EBADF (Bad file descriptor) [pid 5221] close(9) = -1 EBADF (Bad file descriptor) [pid 5221] close(10) = -1 EBADF (Bad file descriptor) [pid 5221] close(11) = -1 EBADF (Bad file descriptor) [pid 5221] close(12) = -1 EBADF (Bad file descriptor) [pid 5221] close(13) = -1 EBADF (Bad file descriptor) [pid 5221] close(14) = -1 EBADF (Bad file descriptor) [pid 5221] close(15) = -1 EBADF (Bad file descriptor) [pid 5221] close(16) = -1 EBADF (Bad file descriptor) [pid 5221] close(17) = -1 EBADF (Bad file descriptor) [pid 5221] close(18) = -1 EBADF (Bad file descriptor) [pid 5221] close(19) = -1 EBADF (Bad file descriptor) [pid 5221] close(20) = -1 EBADF (Bad file descriptor) [pid 5221] close(21) = -1 EBADF (Bad file descriptor) [pid 5221] close(22) = -1 EBADF (Bad file descriptor) [pid 5221] close(23) = -1 EBADF (Bad file descriptor) [pid 5221] close(24) = -1 EBADF (Bad file descriptor) [pid 5221] close(25) = -1 EBADF (Bad file descriptor) [pid 5221] close(26) = -1 EBADF (Bad file descriptor) [pid 5221] close(27) = -1 EBADF (Bad file descriptor) [pid 5221] close(28) = -1 EBADF (Bad file descriptor) [pid 5221] close(29) = -1 EBADF (Bad file descriptor) [pid 5221] exit_group(0) = ? [pid 5221] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=91, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./89/binderfs") = 0 [ 99.180873][ T5221] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./89/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./89/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./89") = 0 [pid 5039] mkdir("./90", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5223 attached , child_tidptr=0x555555e46650) = 92 [pid 5223] set_robust_list(0x555555e46660, 24) = 0 [pid 5223] chdir("./90") = 0 [pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5223] setpgid(0, 0) = 0 [pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5223] write(3, "1000", 4) = 4 [pid 5223] close(3) = 0 [pid 5223] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5223] memfd_create("syzkaller", 0) = 3 [pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5223] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5223] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5223] close(3) = 0 [pid 5223] mkdir("./file0", 0777) = 0 [ 99.328496][ T5223] loop0: detected capacity change from 0 to 8192 [ 99.340602][ T5223] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.353772][ T5223] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 99.363045][ T5223] REISERFS (device loop0): using ordered data mode [ 99.369611][ T5223] reiserfs: using flush barriers [pid 5223] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5223] chdir("./file0") = 0 [pid 5223] ioctl(4, LOOP_CLR_FD) = 0 [pid 5223] close(4) = 0 [pid 5223] mkdir(".", 0777) = -1 EEXIST (File exists) [ 99.376137][ T5223] 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 [ 99.392734][ T5223] REISERFS (device loop0): checking transaction log (loop0) [ 99.401222][ T5223] REISERFS (device loop0): Using r5 hash to sort names [ 99.416192][ T5223] reiserfs: enabling write barrier flush mode [pid 5223] mount(NULL, ".", 0x200000c0, 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 5223] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5223] chdir(".") = 0 [pid 5223] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5223] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5223] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5223] close(3) = 0 [pid 5223] close(4) = 0 [pid 5223] close(5) = 0 [pid 5223] close(6) = -1 EBADF (Bad file descriptor) [pid 5223] close(7) = -1 EBADF (Bad file descriptor) [pid 5223] close(8) = -1 EBADF (Bad file descriptor) [pid 5223] close(9) = -1 EBADF (Bad file descriptor) [pid 5223] close(10) = -1 EBADF (Bad file descriptor) [pid 5223] close(11) = -1 EBADF (Bad file descriptor) [pid 5223] close(12) = -1 EBADF (Bad file descriptor) [pid 5223] close(13) = -1 EBADF (Bad file descriptor) [pid 5223] close(14) = -1 EBADF (Bad file descriptor) [pid 5223] close(15) = -1 EBADF (Bad file descriptor) [pid 5223] close(16) = -1 EBADF (Bad file descriptor) [pid 5223] close(17) = -1 EBADF (Bad file descriptor) [pid 5223] close(18) = -1 EBADF (Bad file descriptor) [pid 5223] close(19) = -1 EBADF (Bad file descriptor) [pid 5223] close(20) = -1 EBADF (Bad file descriptor) [pid 5223] close(21) = -1 EBADF (Bad file descriptor) [pid 5223] close(22) = -1 EBADF (Bad file descriptor) [pid 5223] close(23) = -1 EBADF (Bad file descriptor) [pid 5223] close(24) = -1 EBADF (Bad file descriptor) [pid 5223] close(25) = -1 EBADF (Bad file descriptor) [pid 5223] close(26) = -1 EBADF (Bad file descriptor) [pid 5223] close(27) = -1 EBADF (Bad file descriptor) [pid 5223] close(28) = -1 EBADF (Bad file descriptor) [pid 5223] close(29) = -1 EBADF (Bad file descriptor) [pid 5223] exit_group(0) = ? [pid 5223] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=92, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./90/binderfs") = 0 [ 99.425875][ T5223] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./90/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./90") = 0 [pid 5039] mkdir("./91", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 93 ./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x555555e46660, 24) = 0 [pid 5225] chdir("./91") = 0 [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5225] setpgid(0, 0) = 0 [pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1000", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5225] memfd_create("syzkaller", 0) = 3 [pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5225] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5225] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5225] close(3) = 0 [pid 5225] mkdir("./file0", 0777) = 0 [ 99.606585][ T5225] loop0: detected capacity change from 0 to 8192 [ 99.618628][ T5225] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.631663][ T5225] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 99.641344][ T5225] REISERFS (device loop0): using ordered data mode [ 99.648313][ T5225] reiserfs: using flush barriers [pid 5225] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5225] chdir("./file0") = 0 [pid 5225] ioctl(4, LOOP_CLR_FD) = 0 [pid 5225] close(4) = 0 [pid 5225] mkdir(".", 0777) = -1 EEXIST (File exists) [ 99.654650][ T5225] 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 [ 99.671610][ T5225] REISERFS (device loop0): checking transaction log (loop0) [ 99.680187][ T5225] REISERFS (device loop0): Using r5 hash to sort names [pid 5225] mount(NULL, ".", 0x200000c0, 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 5225] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5225] chdir(".") = 0 [pid 5225] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5225] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5225] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5225] close(3) = 0 [pid 5225] close(4) = 0 [pid 5225] close(5) = 0 [pid 5225] close(6) = -1 EBADF (Bad file descriptor) [pid 5225] close(7) = -1 EBADF (Bad file descriptor) [pid 5225] close(8) = -1 EBADF (Bad file descriptor) [pid 5225] close(9) = -1 EBADF (Bad file descriptor) [pid 5225] close(10) = -1 EBADF (Bad file descriptor) [pid 5225] close(11) = -1 EBADF (Bad file descriptor) [pid 5225] close(12) = -1 EBADF (Bad file descriptor) [pid 5225] close(13) = -1 EBADF (Bad file descriptor) [pid 5225] close(14) = -1 EBADF (Bad file descriptor) [pid 5225] close(15) = -1 EBADF (Bad file descriptor) [pid 5225] close(16) = -1 EBADF (Bad file descriptor) [pid 5225] close(17) = -1 EBADF (Bad file descriptor) [pid 5225] close(18) = -1 EBADF (Bad file descriptor) [pid 5225] close(19) = -1 EBADF (Bad file descriptor) [pid 5225] close(20) = -1 EBADF (Bad file descriptor) [pid 5225] close(21) = -1 EBADF (Bad file descriptor) [pid 5225] close(22) = -1 EBADF (Bad file descriptor) [pid 5225] close(23) = -1 EBADF (Bad file descriptor) [pid 5225] close(24) = -1 EBADF (Bad file descriptor) [pid 5225] close(25) = -1 EBADF (Bad file descriptor) [pid 5225] close(26) = -1 EBADF (Bad file descriptor) [pid 5225] close(27) = -1 EBADF (Bad file descriptor) [pid 5225] close(28) = -1 EBADF (Bad file descriptor) [pid 5225] close(29) = -1 EBADF (Bad file descriptor) [pid 5225] exit_group(0) = ? [pid 5225] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=93, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./91/binderfs") = 0 [ 99.704589][ T5225] reiserfs: enabling write barrier flush mode [ 99.715606][ T5225] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./91/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./91/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./91") = 0 [pid 5039] mkdir("./92", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 94 [pid 5227] <... set_robust_list resumed>) = 0 [pid 5227] chdir("./92") = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5227] memfd_create("syzkaller", 0) = 3 [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5227] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5227] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5227] close(3) = 0 [pid 5227] mkdir("./file0", 0777) = 0 [ 99.884909][ T5227] loop0: detected capacity change from 0 to 8192 [ 99.895549][ T5227] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 99.908595][ T5227] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 99.917866][ T5227] REISERFS (device loop0): using ordered data mode [ 99.924411][ T5227] reiserfs: using flush barriers [pid 5227] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5227] chdir("./file0") = 0 [pid 5227] ioctl(4, LOOP_CLR_FD) = 0 [pid 5227] close(4) = 0 [pid 5227] mkdir(".", 0777) = -1 EEXIST (File exists) [ 99.931008][ T5227] 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 [ 99.947500][ T5227] REISERFS (device loop0): checking transaction log (loop0) [ 99.956072][ T5227] REISERFS (device loop0): Using r5 hash to sort names [ 99.969688][ T5227] reiserfs: enabling write barrier flush mode [pid 5227] mount(NULL, ".", 0x200000c0, 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 5227] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5227] chdir(".") = 0 [pid 5227] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5227] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5227] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5227] close(3) = 0 [pid 5227] close(4) = 0 [pid 5227] close(5) = 0 [pid 5227] close(6) = -1 EBADF (Bad file descriptor) [pid 5227] close(7) = -1 EBADF (Bad file descriptor) [pid 5227] close(8) = -1 EBADF (Bad file descriptor) [pid 5227] close(9) = -1 EBADF (Bad file descriptor) [pid 5227] close(10) = -1 EBADF (Bad file descriptor) [pid 5227] close(11) = -1 EBADF (Bad file descriptor) [pid 5227] close(12) = -1 EBADF (Bad file descriptor) [pid 5227] close(13) = -1 EBADF (Bad file descriptor) [pid 5227] close(14) = -1 EBADF (Bad file descriptor) [pid 5227] close(15) = -1 EBADF (Bad file descriptor) [pid 5227] close(16) = -1 EBADF (Bad file descriptor) [pid 5227] close(17) = -1 EBADF (Bad file descriptor) [pid 5227] close(18) = -1 EBADF (Bad file descriptor) [pid 5227] close(19) = -1 EBADF (Bad file descriptor) [pid 5227] close(20) = -1 EBADF (Bad file descriptor) [pid 5227] close(21) = -1 EBADF (Bad file descriptor) [pid 5227] close(22) = -1 EBADF (Bad file descriptor) [pid 5227] close(23) = -1 EBADF (Bad file descriptor) [pid 5227] close(24) = -1 EBADF (Bad file descriptor) [pid 5227] close(25) = -1 EBADF (Bad file descriptor) [pid 5227] close(26) = -1 EBADF (Bad file descriptor) [pid 5227] close(27) = -1 EBADF (Bad file descriptor) [pid 5227] close(28) = -1 EBADF (Bad file descriptor) [pid 5227] close(29) = -1 EBADF (Bad file descriptor) [pid 5227] exit_group(0) = ? [ 99.980197][ T5227] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5227] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=94, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./92/binderfs") = 0 [pid 5039] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./92/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./92/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./92") = 0 [pid 5039] mkdir("./93", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 95 ./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x555555e46660, 24) = 0 [pid 5229] chdir("./93") = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5229] memfd_create("syzkaller", 0) = 3 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5229] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5229] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5229] close(3) = 0 [pid 5229] mkdir("./file0", 0777) = 0 [ 100.159688][ T5229] loop0: detected capacity change from 0 to 8192 [ 100.170202][ T5229] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.184080][ T5229] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 100.193334][ T5229] REISERFS (device loop0): using ordered data mode [ 100.199924][ T5229] reiserfs: using flush barriers [pid 5229] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5229] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5229] chdir("./file0") = 0 [pid 5229] ioctl(4, LOOP_CLR_FD) = 0 [pid 5229] close(4) = 0 [pid 5229] mkdir(".", 0777) = -1 EEXIST (File exists) [ 100.206180][ T5229] 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 [ 100.222901][ T5229] REISERFS (device loop0): checking transaction log (loop0) [ 100.231318][ T5229] REISERFS (device loop0): Using r5 hash to sort names [ 100.242335][ T5229] reiserfs: enabling write barrier flush mode [pid 5229] mount(NULL, ".", 0x200000c0, 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 5229] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5229] chdir(".") = 0 [pid 5229] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5229] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5229] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5229] close(3) = 0 [pid 5229] close(4) = 0 [pid 5229] close(5) = 0 [pid 5229] close(6) = -1 EBADF (Bad file descriptor) [pid 5229] close(7) = -1 EBADF (Bad file descriptor) [pid 5229] close(8) = -1 EBADF (Bad file descriptor) [pid 5229] close(9) = -1 EBADF (Bad file descriptor) [pid 5229] close(10) = -1 EBADF (Bad file descriptor) [pid 5229] close(11) = -1 EBADF (Bad file descriptor) [pid 5229] close(12) = -1 EBADF (Bad file descriptor) [pid 5229] close(13) = -1 EBADF (Bad file descriptor) [pid 5229] close(14) = -1 EBADF (Bad file descriptor) [pid 5229] close(15) = -1 EBADF (Bad file descriptor) [pid 5229] close(16) = -1 EBADF (Bad file descriptor) [pid 5229] close(17) = -1 EBADF (Bad file descriptor) [pid 5229] close(18) = -1 EBADF (Bad file descriptor) [pid 5229] close(19) = -1 EBADF (Bad file descriptor) [pid 5229] close(20) = -1 EBADF (Bad file descriptor) [pid 5229] close(21) = -1 EBADF (Bad file descriptor) [pid 5229] close(22) = -1 EBADF (Bad file descriptor) [pid 5229] close(23) = -1 EBADF (Bad file descriptor) [pid 5229] close(24) = -1 EBADF (Bad file descriptor) [pid 5229] close(25) = -1 EBADF (Bad file descriptor) [pid 5229] close(26) = -1 EBADF (Bad file descriptor) [pid 5229] close(27) = -1 EBADF (Bad file descriptor) [pid 5229] close(28) = -1 EBADF (Bad file descriptor) [pid 5229] close(29) = -1 EBADF (Bad file descriptor) [pid 5229] exit_group(0) = ? [pid 5229] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=95, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./93/binderfs") = 0 [ 100.252851][ T5229] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./93/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./93") = 0 [pid 5039] mkdir("./94", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached , child_tidptr=0x555555e46650) = 96 [pid 5231] set_robust_list(0x555555e46660, 24) = 0 [pid 5231] chdir("./94") = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5231] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5231] write(3, "1000", 4) = 4 [pid 5231] close(3) = 0 [pid 5231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5231] memfd_create("syzkaller", 0) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5231] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5231] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5231] close(3) = 0 [pid 5231] mkdir("./file0", 0777) = 0 [ 100.426823][ T5231] loop0: detected capacity change from 0 to 8192 [ 100.437334][ T5231] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.450371][ T5231] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 100.460067][ T5231] REISERFS (device loop0): using ordered data mode [ 100.466969][ T5231] reiserfs: using flush barriers [pid 5231] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5231] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5231] chdir("./file0") = 0 [pid 5231] ioctl(4, LOOP_CLR_FD) = 0 [pid 5231] close(4) = 0 [pid 5231] mkdir(".", 0777) = -1 EEXIST (File exists) [ 100.473321][ T5231] 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 [ 100.490176][ T5231] REISERFS (device loop0): checking transaction log (loop0) [ 100.498986][ T5231] REISERFS (device loop0): Using r5 hash to sort names [ 100.516668][ T5231] reiserfs: enabling write barrier flush mode [pid 5231] mount(NULL, ".", 0x200000c0, 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 5231] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5231] chdir(".") = 0 [pid 5231] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5231] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5231] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5231] close(3) = 0 [pid 5231] close(4) = 0 [pid 5231] close(5) = 0 [pid 5231] close(6) = -1 EBADF (Bad file descriptor) [pid 5231] close(7) = -1 EBADF (Bad file descriptor) [pid 5231] close(8) = -1 EBADF (Bad file descriptor) [pid 5231] close(9) = -1 EBADF (Bad file descriptor) [pid 5231] close(10) = -1 EBADF (Bad file descriptor) [pid 5231] close(11) = -1 EBADF (Bad file descriptor) [pid 5231] close(12) = -1 EBADF (Bad file descriptor) [pid 5231] close(13) = -1 EBADF (Bad file descriptor) [pid 5231] close(14) = -1 EBADF (Bad file descriptor) [pid 5231] close(15) = -1 EBADF (Bad file descriptor) [pid 5231] close(16) = -1 EBADF (Bad file descriptor) [pid 5231] close(17) = -1 EBADF (Bad file descriptor) [pid 5231] close(18) = -1 EBADF (Bad file descriptor) [pid 5231] close(19) = -1 EBADF (Bad file descriptor) [pid 5231] close(20) = -1 EBADF (Bad file descriptor) [pid 5231] close(21) = -1 EBADF (Bad file descriptor) [pid 5231] close(22) = -1 EBADF (Bad file descriptor) [pid 5231] close(23) = -1 EBADF (Bad file descriptor) [pid 5231] close(24) = -1 EBADF (Bad file descriptor) [pid 5231] close(25) = -1 EBADF (Bad file descriptor) [pid 5231] close(26) = -1 EBADF (Bad file descriptor) [pid 5231] close(27) = -1 EBADF (Bad file descriptor) [pid 5231] close(28) = -1 EBADF (Bad file descriptor) [pid 5231] close(29) = -1 EBADF (Bad file descriptor) [pid 5231] exit_group(0) = ? [pid 5231] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=96, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./94/binderfs") = 0 [ 100.530308][ T5231] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./94/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./94") = 0 [pid 5039] mkdir("./95", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5233 attached [pid 5233] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 97 [pid 5233] <... set_robust_list resumed>) = 0 [pid 5233] chdir("./95") = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setpgid(0, 0) = 0 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5233] memfd_create("syzkaller", 0) = 3 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5233] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5233] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5233] close(3) = 0 [pid 5233] mkdir("./file0", 0777) = 0 [ 100.701198][ T5233] loop0: detected capacity change from 0 to 8192 [ 100.711355][ T5233] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.724531][ T5233] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 100.733892][ T5233] REISERFS (device loop0): using ordered data mode [ 100.740459][ T5233] reiserfs: using flush barriers [pid 5233] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5233] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5233] chdir("./file0") = 0 [pid 5233] ioctl(4, LOOP_CLR_FD) = 0 [pid 5233] close(4) = 0 [pid 5233] mkdir(".", 0777) = -1 EEXIST (File exists) [ 100.747461][ T5233] 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 [ 100.764020][ T5233] REISERFS (device loop0): checking transaction log (loop0) [ 100.772578][ T5233] REISERFS (device loop0): Using r5 hash to sort names [pid 5233] mount(NULL, ".", 0x200000c0, 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 5233] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5233] chdir(".") = 0 [pid 5233] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5233] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5233] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5233] close(3) = 0 [pid 5233] close(4) = 0 [pid 5233] close(5) = 0 [pid 5233] close(6) = -1 EBADF (Bad file descriptor) [pid 5233] close(7) = -1 EBADF (Bad file descriptor) [pid 5233] close(8) = -1 EBADF (Bad file descriptor) [pid 5233] close(9) = -1 EBADF (Bad file descriptor) [pid 5233] close(10) = -1 EBADF (Bad file descriptor) [pid 5233] close(11) = -1 EBADF (Bad file descriptor) [pid 5233] close(12) = -1 EBADF (Bad file descriptor) [pid 5233] close(13) = -1 EBADF (Bad file descriptor) [pid 5233] close(14) = -1 EBADF (Bad file descriptor) [pid 5233] close(15) = -1 EBADF (Bad file descriptor) [pid 5233] close(16) = -1 EBADF (Bad file descriptor) [pid 5233] close(17) = -1 EBADF (Bad file descriptor) [pid 5233] close(18) = -1 EBADF (Bad file descriptor) [pid 5233] close(19) = -1 EBADF (Bad file descriptor) [pid 5233] close(20) = -1 EBADF (Bad file descriptor) [pid 5233] close(21) = -1 EBADF (Bad file descriptor) [pid 5233] close(22) = -1 EBADF (Bad file descriptor) [pid 5233] close(23) = -1 EBADF (Bad file descriptor) [pid 5233] close(24) = -1 EBADF (Bad file descriptor) [pid 5233] close(25) = -1 EBADF (Bad file descriptor) [pid 5233] close(26) = -1 EBADF (Bad file descriptor) [pid 5233] close(27) = -1 EBADF (Bad file descriptor) [pid 5233] close(28) = -1 EBADF (Bad file descriptor) [pid 5233] close(29) = -1 EBADF (Bad file descriptor) [pid 5233] exit_group(0) = ? [pid 5233] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=97, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./95/binderfs") = 0 [ 100.797606][ T5233] reiserfs: enabling write barrier flush mode [ 100.809015][ T5233] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./95/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./95/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./95") = 0 [pid 5039] mkdir("./96", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5235 attached , child_tidptr=0x555555e46650) = 98 [pid 5235] set_robust_list(0x555555e46660, 24) = 0 [pid 5235] chdir("./96") = 0 [pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5235] setpgid(0, 0) = 0 [pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5235] write(3, "1000", 4) = 4 [pid 5235] close(3) = 0 [pid 5235] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5235] memfd_create("syzkaller", 0) = 3 [pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5235] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5235] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5235] close(3) = 0 [pid 5235] mkdir("./file0", 0777) = 0 [ 100.972073][ T5235] loop0: detected capacity change from 0 to 8192 [ 100.982453][ T5235] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 100.995621][ T5235] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 101.004799][ T5235] REISERFS (device loop0): using ordered data mode [ 101.011714][ T5235] reiserfs: using flush barriers [pid 5235] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5235] chdir("./file0") = 0 [pid 5235] ioctl(4, LOOP_CLR_FD) = 0 [pid 5235] close(4) = 0 [pid 5235] mkdir(".", 0777) = -1 EEXIST (File exists) [ 101.018531][ T5235] 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 [ 101.035657][ T5235] REISERFS (device loop0): checking transaction log (loop0) [ 101.044241][ T5235] REISERFS (device loop0): Using r5 hash to sort names [ 101.058294][ T5235] reiserfs: enabling write barrier flush mode [pid 5235] mount(NULL, ".", 0x200000c0, 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 5235] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5235] chdir(".") = 0 [pid 5235] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5235] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5235] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5235] close(3) = 0 [pid 5235] close(4) = 0 [pid 5235] close(5) = 0 [pid 5235] close(6) = -1 EBADF (Bad file descriptor) [pid 5235] close(7) = -1 EBADF (Bad file descriptor) [pid 5235] close(8) = -1 EBADF (Bad file descriptor) [pid 5235] close(9) = -1 EBADF (Bad file descriptor) [pid 5235] close(10) = -1 EBADF (Bad file descriptor) [pid 5235] close(11) = -1 EBADF (Bad file descriptor) [pid 5235] close(12) = -1 EBADF (Bad file descriptor) [pid 5235] close(13) = -1 EBADF (Bad file descriptor) [pid 5235] close(14) = -1 EBADF (Bad file descriptor) [pid 5235] close(15) = -1 EBADF (Bad file descriptor) [pid 5235] close(16) = -1 EBADF (Bad file descriptor) [pid 5235] close(17) = -1 EBADF (Bad file descriptor) [pid 5235] close(18) = -1 EBADF (Bad file descriptor) [pid 5235] close(19) = -1 EBADF (Bad file descriptor) [pid 5235] close(20) = -1 EBADF (Bad file descriptor) [pid 5235] close(21) = -1 EBADF (Bad file descriptor) [pid 5235] close(22) = -1 EBADF (Bad file descriptor) [pid 5235] close(23) = -1 EBADF (Bad file descriptor) [pid 5235] close(24) = -1 EBADF (Bad file descriptor) [pid 5235] close(25) = -1 EBADF (Bad file descriptor) [pid 5235] close(26) = -1 EBADF (Bad file descriptor) [pid 5235] close(27) = -1 EBADF (Bad file descriptor) [pid 5235] close(28) = -1 EBADF (Bad file descriptor) [pid 5235] close(29) = -1 EBADF (Bad file descriptor) [pid 5235] exit_group(0) = ? [pid 5235] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=98, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./96/binderfs") = 0 [ 101.070861][ T5235] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./96/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./96") = 0 [pid 5039] mkdir("./97", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5237 attached , child_tidptr=0x555555e46650) = 99 [pid 5237] set_robust_list(0x555555e46660, 24) = 0 [pid 5237] chdir("./97") = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5237] memfd_create("syzkaller", 0) = 3 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5237] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5237] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5237] close(3) = 0 [pid 5237] mkdir("./file0", 0777) = 0 [ 101.245432][ T5237] loop0: detected capacity change from 0 to 8192 [ 101.255826][ T5237] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.269003][ T5237] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 101.278296][ T5237] REISERFS (device loop0): using ordered data mode [ 101.284810][ T5237] reiserfs: using flush barriers [pid 5237] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5237] chdir("./file0") = 0 [pid 5237] ioctl(4, LOOP_CLR_FD) = 0 [pid 5237] close(4) = 0 [pid 5237] mkdir(".", 0777) = -1 EEXIST (File exists) [ 101.291214][ T5237] 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 [ 101.307935][ T5237] REISERFS (device loop0): checking transaction log (loop0) [ 101.316381][ T5237] REISERFS (device loop0): Using r5 hash to sort names [ 101.326376][ T5237] reiserfs: enabling write barrier flush mode [pid 5237] mount(NULL, ".", 0x200000c0, 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 5237] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5237] chdir(".") = 0 [pid 5237] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5237] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5237] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5237] close(3) = 0 [pid 5237] close(4) = 0 [pid 5237] close(5) = 0 [pid 5237] close(6) = -1 EBADF (Bad file descriptor) [pid 5237] close(7) = -1 EBADF (Bad file descriptor) [pid 5237] close(8) = -1 EBADF (Bad file descriptor) [pid 5237] close(9) = -1 EBADF (Bad file descriptor) [pid 5237] close(10) = -1 EBADF (Bad file descriptor) [pid 5237] close(11) = -1 EBADF (Bad file descriptor) [pid 5237] close(12) = -1 EBADF (Bad file descriptor) [pid 5237] close(13) = -1 EBADF (Bad file descriptor) [pid 5237] close(14) = -1 EBADF (Bad file descriptor) [pid 5237] close(15) = -1 EBADF (Bad file descriptor) [pid 5237] close(16) = -1 EBADF (Bad file descriptor) [pid 5237] close(17) = -1 EBADF (Bad file descriptor) [pid 5237] close(18) = -1 EBADF (Bad file descriptor) [pid 5237] close(19) = -1 EBADF (Bad file descriptor) [pid 5237] close(20) = -1 EBADF (Bad file descriptor) [pid 5237] close(21) = -1 EBADF (Bad file descriptor) [pid 5237] close(22) = -1 EBADF (Bad file descriptor) [pid 5237] close(23) = -1 EBADF (Bad file descriptor) [pid 5237] close(24) = -1 EBADF (Bad file descriptor) [pid 5237] close(25) = -1 EBADF (Bad file descriptor) [pid 5237] close(26) = -1 EBADF (Bad file descriptor) [pid 5237] close(27) = -1 EBADF (Bad file descriptor) [pid 5237] close(28) = -1 EBADF (Bad file descriptor) [pid 5237] close(29) = -1 EBADF (Bad file descriptor) [pid 5237] exit_group(0) = ? [pid 5237] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=99, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./97/binderfs") = 0 [ 101.337257][ T5237] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./97/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./97") = 0 [pid 5039] mkdir("./98", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 100 ./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x555555e46660, 24) = 0 [pid 5239] chdir("./98") = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5239] memfd_create("syzkaller", 0) = 3 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5239] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5239] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5239] close(3) = 0 [pid 5239] mkdir("./file0", 0777) = 0 [ 101.513349][ T5239] loop0: detected capacity change from 0 to 8192 [ 101.524031][ T5239] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.537124][ T5239] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 101.546434][ T5239] REISERFS (device loop0): using ordered data mode [ 101.552966][ T5239] reiserfs: using flush barriers [pid 5239] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5239] chdir("./file0") = 0 [pid 5239] ioctl(4, LOOP_CLR_FD) = 0 [pid 5239] close(4) = 0 [pid 5239] mkdir(".", 0777) = -1 EEXIST (File exists) [ 101.559513][ T5239] 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 [ 101.576041][ T5239] REISERFS (device loop0): checking transaction log (loop0) [ 101.584687][ T5239] REISERFS (device loop0): Using r5 hash to sort names [ 101.607714][ T5239] reiserfs: enabling write barrier flush mode [pid 5239] mount(NULL, ".", 0x200000c0, 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 5239] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5239] chdir(".") = 0 [pid 5239] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5239] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5239] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5239] close(3) = 0 [pid 5239] close(4) = 0 [pid 5239] close(5) = 0 [pid 5239] close(6) = -1 EBADF (Bad file descriptor) [pid 5239] close(7) = -1 EBADF (Bad file descriptor) [pid 5239] close(8) = -1 EBADF (Bad file descriptor) [pid 5239] close(9) = -1 EBADF (Bad file descriptor) [pid 5239] close(10) = -1 EBADF (Bad file descriptor) [pid 5239] close(11) = -1 EBADF (Bad file descriptor) [pid 5239] close(12) = -1 EBADF (Bad file descriptor) [pid 5239] close(13) = -1 EBADF (Bad file descriptor) [pid 5239] close(14) = -1 EBADF (Bad file descriptor) [pid 5239] close(15) = -1 EBADF (Bad file descriptor) [pid 5239] close(16) = -1 EBADF (Bad file descriptor) [pid 5239] close(17) = -1 EBADF (Bad file descriptor) [pid 5239] close(18) = -1 EBADF (Bad file descriptor) [pid 5239] close(19) = -1 EBADF (Bad file descriptor) [pid 5239] close(20) = -1 EBADF (Bad file descriptor) [pid 5239] close(21) = -1 EBADF (Bad file descriptor) [pid 5239] close(22) = -1 EBADF (Bad file descriptor) [pid 5239] close(23) = -1 EBADF (Bad file descriptor) [pid 5239] close(24) = -1 EBADF (Bad file descriptor) [pid 5239] close(25) = -1 EBADF (Bad file descriptor) [pid 5239] close(26) = -1 EBADF (Bad file descriptor) [pid 5239] close(27) = -1 EBADF (Bad file descriptor) [pid 5239] close(28) = -1 EBADF (Bad file descriptor) [pid 5239] close(29) = -1 EBADF (Bad file descriptor) [pid 5239] exit_group(0) = ? [pid 5239] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=100, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./98/binderfs") = 0 [ 101.619753][ T5239] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./98/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./98/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./98") = 0 [pid 5039] mkdir("./99", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 101 ./strace-static-x86_64: Process 5241 attached [pid 5241] set_robust_list(0x555555e46660, 24) = 0 [pid 5241] chdir("./99") = 0 [pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5241] setpgid(0, 0) = 0 [pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5241] write(3, "1000", 4) = 4 [pid 5241] close(3) = 0 [pid 5241] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5241] memfd_create("syzkaller", 0) = 3 [pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5241] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5241] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5241] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5241] close(3) = 0 [pid 5241] mkdir("./file0", 0777) = 0 [ 101.814230][ T5241] loop0: detected capacity change from 0 to 8192 [ 101.826704][ T5241] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 101.839756][ T5241] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 101.849134][ T5241] REISERFS (device loop0): using ordered data mode [ 101.855721][ T5241] reiserfs: using flush barriers [pid 5241] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5241] chdir("./file0") = 0 [pid 5241] ioctl(4, LOOP_CLR_FD) = 0 [pid 5241] close(4) = 0 [pid 5241] mkdir(".", 0777) = -1 EEXIST (File exists) [ 101.862028][ T5241] 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 [ 101.878813][ T5241] REISERFS (device loop0): checking transaction log (loop0) [ 101.887194][ T5241] REISERFS (device loop0): Using r5 hash to sort names [ 101.905709][ T5241] reiserfs: enabling write barrier flush mode [pid 5241] mount(NULL, ".", 0x200000c0, 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 5241] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5241] chdir(".") = 0 [pid 5241] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5241] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5241] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5241] close(3) = 0 [pid 5241] close(4) = 0 [pid 5241] close(5) = 0 [pid 5241] close(6) = -1 EBADF (Bad file descriptor) [pid 5241] close(7) = -1 EBADF (Bad file descriptor) [pid 5241] close(8) = -1 EBADF (Bad file descriptor) [pid 5241] close(9) = -1 EBADF (Bad file descriptor) [pid 5241] close(10) = -1 EBADF (Bad file descriptor) [pid 5241] close(11) = -1 EBADF (Bad file descriptor) [pid 5241] close(12) = -1 EBADF (Bad file descriptor) [pid 5241] close(13) = -1 EBADF (Bad file descriptor) [pid 5241] close(14) = -1 EBADF (Bad file descriptor) [pid 5241] close(15) = -1 EBADF (Bad file descriptor) [pid 5241] close(16) = -1 EBADF (Bad file descriptor) [pid 5241] close(17) = -1 EBADF (Bad file descriptor) [pid 5241] close(18) = -1 EBADF (Bad file descriptor) [pid 5241] close(19) = -1 EBADF (Bad file descriptor) [pid 5241] close(20) = -1 EBADF (Bad file descriptor) [pid 5241] close(21) = -1 EBADF (Bad file descriptor) [pid 5241] close(22) = -1 EBADF (Bad file descriptor) [pid 5241] close(23) = -1 EBADF (Bad file descriptor) [pid 5241] close(24) = -1 EBADF (Bad file descriptor) [pid 5241] close(25) = -1 EBADF (Bad file descriptor) [pid 5241] close(26) = -1 EBADF (Bad file descriptor) [pid 5241] close(27) = -1 EBADF (Bad file descriptor) [pid 5241] close(28) = -1 EBADF (Bad file descriptor) [pid 5241] close(29) = -1 EBADF (Bad file descriptor) [pid 5241] exit_group(0) = ? [pid 5241] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=101, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./99/binderfs") = 0 [ 101.915501][ T5241] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./99/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./99/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./99") = 0 [pid 5039] mkdir("./100", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached , child_tidptr=0x555555e46650) = 102 [pid 5243] set_robust_list(0x555555e46660, 24) = 0 [pid 5243] chdir("./100") = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5243] memfd_create("syzkaller", 0) = 3 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5243] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5243] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5243] close(3) = 0 [pid 5243] mkdir("./file0", 0777) = 0 [ 102.070730][ T5243] loop0: detected capacity change from 0 to 8192 [ 102.082412][ T5243] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.095539][ T5243] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 102.104737][ T5243] REISERFS (device loop0): using ordered data mode [ 102.111329][ T5243] reiserfs: using flush barriers [pid 5243] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5243] chdir("./file0") = 0 [pid 5243] ioctl(4, LOOP_CLR_FD) = 0 [pid 5243] close(4) = 0 [ 102.117780][ T5243] 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 [ 102.134364][ T5243] REISERFS (device loop0): checking transaction log (loop0) [ 102.142880][ T5243] REISERFS (device loop0): Using r5 hash to sort names [pid 5243] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5243] mount(NULL, ".", 0x200000c0, 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 5243] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5243] chdir(".") = 0 [pid 5243] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5243] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5243] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5243] close(3) = 0 [pid 5243] close(4) = 0 [pid 5243] close(5) = 0 [pid 5243] close(6) = -1 EBADF (Bad file descriptor) [pid 5243] close(7) = -1 EBADF (Bad file descriptor) [pid 5243] close(8) = -1 EBADF (Bad file descriptor) [pid 5243] close(9) = -1 EBADF (Bad file descriptor) [pid 5243] close(10) = -1 EBADF (Bad file descriptor) [pid 5243] close(11) = -1 EBADF (Bad file descriptor) [pid 5243] close(12) = -1 EBADF (Bad file descriptor) [pid 5243] close(13) = -1 EBADF (Bad file descriptor) [pid 5243] close(14) = -1 EBADF (Bad file descriptor) [pid 5243] close(15) = -1 EBADF (Bad file descriptor) [pid 5243] close(16) = -1 EBADF (Bad file descriptor) [pid 5243] close(17) = -1 EBADF (Bad file descriptor) [pid 5243] close(18) = -1 EBADF (Bad file descriptor) [pid 5243] close(19) = -1 EBADF (Bad file descriptor) [pid 5243] close(20) = -1 EBADF (Bad file descriptor) [pid 5243] close(21) = -1 EBADF (Bad file descriptor) [pid 5243] close(22) = -1 EBADF (Bad file descriptor) [pid 5243] close(23) = -1 EBADF (Bad file descriptor) [pid 5243] close(24) = -1 EBADF (Bad file descriptor) [pid 5243] close(25) = -1 EBADF (Bad file descriptor) [pid 5243] close(26) = -1 EBADF (Bad file descriptor) [pid 5243] close(27) = -1 EBADF (Bad file descriptor) [pid 5243] close(28) = -1 EBADF (Bad file descriptor) [pid 5243] close(29) = -1 EBADF (Bad file descriptor) [pid 5243] exit_group(0) = ? [pid 5243] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=102, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./100/binderfs") = 0 [ 102.168728][ T5243] reiserfs: enabling write barrier flush mode [ 102.178815][ T5243] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./100/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./100/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./100") = 0 [pid 5039] mkdir("./101", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5245 attached , child_tidptr=0x555555e46650) = 103 [pid 5245] set_robust_list(0x555555e46660, 24) = 0 [pid 5245] chdir("./101") = 0 [pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5245] setpgid(0, 0) = 0 [pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5245] write(3, "1000", 4) = 4 [pid 5245] close(3) = 0 [pid 5245] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5245] memfd_create("syzkaller", 0) = 3 [pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5245] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5245] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5245] close(3) = 0 [pid 5245] mkdir("./file0", 0777) = 0 [ 102.364790][ T5245] loop0: detected capacity change from 0 to 8192 [ 102.375537][ T5245] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.388902][ T5245] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 102.398308][ T5245] REISERFS (device loop0): using ordered data mode [ 102.404891][ T5245] reiserfs: using flush barriers [pid 5245] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5245] chdir("./file0") = 0 [pid 5245] ioctl(4, LOOP_CLR_FD) = 0 [pid 5245] close(4) = 0 [pid 5245] mkdir(".", 0777) = -1 EEXIST (File exists) [ 102.411229][ T5245] 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 [ 102.427904][ T5245] REISERFS (device loop0): checking transaction log (loop0) [ 102.436099][ T5245] REISERFS (device loop0): Using r5 hash to sort names [ 102.455559][ T5245] reiserfs: enabling write barrier flush mode [pid 5245] mount(NULL, ".", 0x200000c0, 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 5245] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5245] chdir(".") = 0 [pid 5245] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5245] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5245] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5245] close(3) = 0 [pid 5245] close(4) = 0 [pid 5245] close(5) = 0 [pid 5245] close(6) = -1 EBADF (Bad file descriptor) [pid 5245] close(7) = -1 EBADF (Bad file descriptor) [pid 5245] close(8) = -1 EBADF (Bad file descriptor) [pid 5245] close(9) = -1 EBADF (Bad file descriptor) [pid 5245] close(10) = -1 EBADF (Bad file descriptor) [pid 5245] close(11) = -1 EBADF (Bad file descriptor) [pid 5245] close(12) = -1 EBADF (Bad file descriptor) [pid 5245] close(13) = -1 EBADF (Bad file descriptor) [pid 5245] close(14) = -1 EBADF (Bad file descriptor) [pid 5245] close(15) = -1 EBADF (Bad file descriptor) [pid 5245] close(16) = -1 EBADF (Bad file descriptor) [pid 5245] close(17) = -1 EBADF (Bad file descriptor) [pid 5245] close(18) = -1 EBADF (Bad file descriptor) [pid 5245] close(19) = -1 EBADF (Bad file descriptor) [pid 5245] close(20) = -1 EBADF (Bad file descriptor) [pid 5245] close(21) = -1 EBADF (Bad file descriptor) [pid 5245] close(22) = -1 EBADF (Bad file descriptor) [pid 5245] close(23) = -1 EBADF (Bad file descriptor) [pid 5245] close(24) = -1 EBADF (Bad file descriptor) [pid 5245] close(25) = -1 EBADF (Bad file descriptor) [pid 5245] close(26) = -1 EBADF (Bad file descriptor) [pid 5245] close(27) = -1 EBADF (Bad file descriptor) [pid 5245] close(28) = -1 EBADF (Bad file descriptor) [pid 5245] close(29) = -1 EBADF (Bad file descriptor) [pid 5245] exit_group(0) = ? [pid 5245] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=103, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./101/binderfs") = 0 [ 102.466209][ T5245] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./101/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./101") = 0 [pid 5039] mkdir("./102", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 104 ./strace-static-x86_64: Process 5247 attached [pid 5247] set_robust_list(0x555555e46660, 24) = 0 [pid 5247] chdir("./102") = 0 [pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5247] setpgid(0, 0) = 0 [pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5247] write(3, "1000", 4) = 4 [pid 5247] close(3) = 0 [pid 5247] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5247] memfd_create("syzkaller", 0) = 3 [pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5247] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5247] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5247] close(3) = 0 [pid 5247] mkdir("./file0", 0777) = 0 [ 102.624701][ T5247] loop0: detected capacity change from 0 to 8192 [ 102.635348][ T5247] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.648349][ T5247] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 102.657627][ T5247] REISERFS (device loop0): using ordered data mode [ 102.664152][ T5247] reiserfs: using flush barriers [pid 5247] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5247] chdir("./file0") = 0 [pid 5247] ioctl(4, LOOP_CLR_FD) = 0 [pid 5247] close(4) = 0 [pid 5247] mkdir(".", 0777) = -1 EEXIST (File exists) [ 102.670622][ T5247] 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 [ 102.687240][ T5247] REISERFS (device loop0): checking transaction log (loop0) [ 102.695914][ T5247] REISERFS (device loop0): Using r5 hash to sort names [ 102.707077][ T5247] reiserfs: enabling write barrier flush mode [pid 5247] mount(NULL, ".", 0x200000c0, 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 5247] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5247] chdir(".") = 0 [pid 5247] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5247] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5247] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5247] close(3) = 0 [pid 5247] close(4) = 0 [pid 5247] close(5) = 0 [pid 5247] close(6) = -1 EBADF (Bad file descriptor) [pid 5247] close(7) = -1 EBADF (Bad file descriptor) [pid 5247] close(8) = -1 EBADF (Bad file descriptor) [pid 5247] close(9) = -1 EBADF (Bad file descriptor) [pid 5247] close(10) = -1 EBADF (Bad file descriptor) [pid 5247] close(11) = -1 EBADF (Bad file descriptor) [pid 5247] close(12) = -1 EBADF (Bad file descriptor) [pid 5247] close(13) = -1 EBADF (Bad file descriptor) [pid 5247] close(14) = -1 EBADF (Bad file descriptor) [pid 5247] close(15) = -1 EBADF (Bad file descriptor) [pid 5247] close(16) = -1 EBADF (Bad file descriptor) [pid 5247] close(17) = -1 EBADF (Bad file descriptor) [pid 5247] close(18) = -1 EBADF (Bad file descriptor) [pid 5247] close(19) = -1 EBADF (Bad file descriptor) [pid 5247] close(20) = -1 EBADF (Bad file descriptor) [pid 5247] close(21) = -1 EBADF (Bad file descriptor) [pid 5247] close(22) = -1 EBADF (Bad file descriptor) [pid 5247] close(23) = -1 EBADF (Bad file descriptor) [pid 5247] close(24) = -1 EBADF (Bad file descriptor) [pid 5247] close(25) = -1 EBADF (Bad file descriptor) [pid 5247] close(26) = -1 EBADF (Bad file descriptor) [pid 5247] close(27) = -1 EBADF (Bad file descriptor) [pid 5247] close(28) = -1 EBADF (Bad file descriptor) [pid 5247] close(29) = -1 EBADF (Bad file descriptor) [pid 5247] exit_group(0) = ? [pid 5247] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=104, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./102/binderfs") = 0 [ 102.717866][ T5247] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./102/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./102/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./102") = 0 [pid 5039] mkdir("./103", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached , child_tidptr=0x555555e46650) = 105 [pid 5249] set_robust_list(0x555555e46660, 24) = 0 [pid 5249] chdir("./103") = 0 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5249] setpgid(0, 0) = 0 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5249] write(3, "1000", 4) = 4 [pid 5249] close(3) = 0 [pid 5249] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5249] memfd_create("syzkaller", 0) = 3 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5249] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5249] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5249] close(3) = 0 [pid 5249] mkdir("./file0", 0777) = 0 [ 102.897068][ T5249] loop0: detected capacity change from 0 to 8192 [ 102.907668][ T5249] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 102.920775][ T5249] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 102.930641][ T5249] REISERFS (device loop0): using ordered data mode [ 102.937347][ T5249] reiserfs: using flush barriers [pid 5249] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5249] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5249] chdir("./file0") = 0 [pid 5249] ioctl(4, LOOP_CLR_FD) = 0 [pid 5249] close(4) = 0 [pid 5249] mkdir(".", 0777) = -1 EEXIST (File exists) [ 102.943666][ T5249] 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 [ 102.960528][ T5249] REISERFS (device loop0): checking transaction log (loop0) [ 102.968935][ T5249] REISERFS (device loop0): Using r5 hash to sort names [ 102.980983][ T5249] reiserfs: enabling write barrier flush mode [pid 5249] mount(NULL, ".", 0x200000c0, 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 5249] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5249] chdir(".") = 0 [pid 5249] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5249] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5249] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5249] close(3) = 0 [pid 5249] close(4) = 0 [pid 5249] close(5) = 0 [pid 5249] close(6) = -1 EBADF (Bad file descriptor) [pid 5249] close(7) = -1 EBADF (Bad file descriptor) [pid 5249] close(8) = -1 EBADF (Bad file descriptor) [pid 5249] close(9) = -1 EBADF (Bad file descriptor) [pid 5249] close(10) = -1 EBADF (Bad file descriptor) [pid 5249] close(11) = -1 EBADF (Bad file descriptor) [pid 5249] close(12) = -1 EBADF (Bad file descriptor) [pid 5249] close(13) = -1 EBADF (Bad file descriptor) [pid 5249] close(14) = -1 EBADF (Bad file descriptor) [pid 5249] close(15) = -1 EBADF (Bad file descriptor) [pid 5249] close(16) = -1 EBADF (Bad file descriptor) [pid 5249] close(17) = -1 EBADF (Bad file descriptor) [pid 5249] close(18) = -1 EBADF (Bad file descriptor) [pid 5249] close(19) = -1 EBADF (Bad file descriptor) [pid 5249] close(20) = -1 EBADF (Bad file descriptor) [pid 5249] close(21) = -1 EBADF (Bad file descriptor) [pid 5249] close(22) = -1 EBADF (Bad file descriptor) [pid 5249] close(23) = -1 EBADF (Bad file descriptor) [pid 5249] close(24) = -1 EBADF (Bad file descriptor) [pid 5249] close(25) = -1 EBADF (Bad file descriptor) [pid 5249] close(26) = -1 EBADF (Bad file descriptor) [pid 5249] close(27) = -1 EBADF (Bad file descriptor) [pid 5249] close(28) = -1 EBADF (Bad file descriptor) [pid 5249] close(29) = -1 EBADF (Bad file descriptor) [pid 5249] exit_group(0) = ? [pid 5249] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=105, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./103/binderfs") = 0 [ 102.991274][ T5249] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./103/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./103") = 0 [pid 5039] mkdir("./104", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5251 attached , child_tidptr=0x555555e46650) = 106 [pid 5251] set_robust_list(0x555555e46660, 24) = 0 [pid 5251] chdir("./104") = 0 [pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5251] setpgid(0, 0) = 0 [pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5251] write(3, "1000", 4) = 4 [pid 5251] close(3) = 0 [pid 5251] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5251] memfd_create("syzkaller", 0) = 3 [pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5251] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5251] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5251] close(3) = 0 [pid 5251] mkdir("./file0", 0777) = 0 [ 103.167926][ T5251] loop0: detected capacity change from 0 to 8192 [ 103.178291][ T5251] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.191307][ T5251] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 103.200721][ T5251] REISERFS (device loop0): using ordered data mode [ 103.207321][ T5251] reiserfs: using flush barriers [pid 5251] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5251] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5251] chdir("./file0") = 0 [pid 5251] ioctl(4, LOOP_CLR_FD) = 0 [pid 5251] close(4) = 0 [pid 5251] mkdir(".", 0777) = -1 EEXIST (File exists) [ 103.213865][ T5251] 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 [ 103.230375][ T5251] REISERFS (device loop0): checking transaction log (loop0) [ 103.238880][ T5251] REISERFS (device loop0): Using r5 hash to sort names [ 103.256763][ T5251] reiserfs: enabling write barrier flush mode [pid 5251] mount(NULL, ".", 0x200000c0, 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 5251] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5251] chdir(".") = 0 [pid 5251] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5251] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5251] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5251] close(3) = 0 [pid 5251] close(4) = 0 [pid 5251] close(5) = 0 [pid 5251] close(6) = -1 EBADF (Bad file descriptor) [pid 5251] close(7) = -1 EBADF (Bad file descriptor) [pid 5251] close(8) = -1 EBADF (Bad file descriptor) [pid 5251] close(9) = -1 EBADF (Bad file descriptor) [pid 5251] close(10) = -1 EBADF (Bad file descriptor) [pid 5251] close(11) = -1 EBADF (Bad file descriptor) [pid 5251] close(12) = -1 EBADF (Bad file descriptor) [pid 5251] close(13) = -1 EBADF (Bad file descriptor) [pid 5251] close(14) = -1 EBADF (Bad file descriptor) [pid 5251] close(15) = -1 EBADF (Bad file descriptor) [pid 5251] close(16) = -1 EBADF (Bad file descriptor) [pid 5251] close(17) = -1 EBADF (Bad file descriptor) [pid 5251] close(18) = -1 EBADF (Bad file descriptor) [pid 5251] close(19) = -1 EBADF (Bad file descriptor) [pid 5251] close(20) = -1 EBADF (Bad file descriptor) [pid 5251] close(21) = -1 EBADF (Bad file descriptor) [pid 5251] close(22) = -1 EBADF (Bad file descriptor) [pid 5251] close(23) = -1 EBADF (Bad file descriptor) [pid 5251] close(24) = -1 EBADF (Bad file descriptor) [pid 5251] close(25) = -1 EBADF (Bad file descriptor) [pid 5251] close(26) = -1 EBADF (Bad file descriptor) [pid 5251] close(27) = -1 EBADF (Bad file descriptor) [pid 5251] close(28) = -1 EBADF (Bad file descriptor) [pid 5251] close(29) = -1 EBADF (Bad file descriptor) [pid 5251] exit_group(0) = ? [pid 5251] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=106, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./104/binderfs") = 0 [ 103.272577][ T5251] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./104/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./104/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./104") = 0 [pid 5039] mkdir("./105", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5253 attached , child_tidptr=0x555555e46650) = 107 [pid 5253] set_robust_list(0x555555e46660, 24) = 0 [pid 5253] chdir("./105") = 0 [pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5253] setpgid(0, 0) = 0 [pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5253] write(3, "1000", 4) = 4 [pid 5253] close(3) = 0 [pid 5253] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5253] memfd_create("syzkaller", 0) = 3 [pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5253] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5253] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5253] close(3) = 0 [pid 5253] mkdir("./file0", 0777) = 0 [ 103.428318][ T5253] loop0: detected capacity change from 0 to 8192 [ 103.439028][ T5253] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.452071][ T5253] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 103.461426][ T5253] REISERFS (device loop0): using ordered data mode [ 103.467996][ T5253] reiserfs: using flush barriers [pid 5253] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5253] chdir("./file0") = 0 [pid 5253] ioctl(4, LOOP_CLR_FD) = 0 [pid 5253] close(4) = 0 [pid 5253] mkdir(".", 0777) = -1 EEXIST (File exists) [ 103.474298][ T5253] 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 [ 103.490973][ T5253] REISERFS (device loop0): checking transaction log (loop0) [ 103.499266][ T5253] REISERFS (device loop0): Using r5 hash to sort names [ 103.515863][ T5253] reiserfs: enabling write barrier flush mode [pid 5253] mount(NULL, ".", 0x200000c0, 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 5253] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5253] chdir(".") = 0 [pid 5253] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5253] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5253] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5253] close(3) = 0 [pid 5253] close(4) = 0 [pid 5253] close(5) = 0 [pid 5253] close(6) = -1 EBADF (Bad file descriptor) [pid 5253] close(7) = -1 EBADF (Bad file descriptor) [pid 5253] close(8) = -1 EBADF (Bad file descriptor) [pid 5253] close(9) = -1 EBADF (Bad file descriptor) [pid 5253] close(10) = -1 EBADF (Bad file descriptor) [pid 5253] close(11) = -1 EBADF (Bad file descriptor) [pid 5253] close(12) = -1 EBADF (Bad file descriptor) [pid 5253] close(13) = -1 EBADF (Bad file descriptor) [pid 5253] close(14) = -1 EBADF (Bad file descriptor) [pid 5253] close(15) = -1 EBADF (Bad file descriptor) [pid 5253] close(16) = -1 EBADF (Bad file descriptor) [pid 5253] close(17) = -1 EBADF (Bad file descriptor) [pid 5253] close(18) = -1 EBADF (Bad file descriptor) [pid 5253] close(19) = -1 EBADF (Bad file descriptor) [pid 5253] close(20) = -1 EBADF (Bad file descriptor) [pid 5253] close(21) = -1 EBADF (Bad file descriptor) [pid 5253] close(22) = -1 EBADF (Bad file descriptor) [pid 5253] close(23) = -1 EBADF (Bad file descriptor) [pid 5253] close(24) = -1 EBADF (Bad file descriptor) [pid 5253] close(25) = -1 EBADF (Bad file descriptor) [pid 5253] close(26) = -1 EBADF (Bad file descriptor) [pid 5253] close(27) = -1 EBADF (Bad file descriptor) [pid 5253] close(28) = -1 EBADF (Bad file descriptor) [pid 5253] close(29) = -1 EBADF (Bad file descriptor) [pid 5253] exit_group(0) = ? [pid 5253] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=107, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./105/binderfs") = 0 [ 103.526131][ T5253] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./105/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./105") = 0 [pid 5039] mkdir("./106", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached , child_tidptr=0x555555e46650) = 108 [pid 5255] set_robust_list(0x555555e46660, 24) = 0 [pid 5255] chdir("./106") = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5255] setpgid(0, 0) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5255] write(3, "1000", 4) = 4 [pid 5255] close(3) = 0 [pid 5255] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5255] memfd_create("syzkaller", 0) = 3 [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5255] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5255] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5255] close(3) = 0 [pid 5255] mkdir("./file0", 0777) = 0 [ 103.692348][ T5255] loop0: detected capacity change from 0 to 8192 [ 103.702698][ T5255] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.715790][ T5255] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 103.725180][ T5255] REISERFS (device loop0): using ordered data mode [ 103.731709][ T5255] reiserfs: using flush barriers [pid 5255] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5255] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5255] chdir("./file0") = 0 [pid 5255] ioctl(4, LOOP_CLR_FD) = 0 [pid 5255] close(4) = 0 [pid 5255] mkdir(".", 0777) = -1 EEXIST (File exists) [ 103.738327][ T5255] 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 [ 103.755119][ T5255] REISERFS (device loop0): checking transaction log (loop0) [ 103.763425][ T5255] REISERFS (device loop0): Using r5 hash to sort names [ 103.776869][ T5255] reiserfs: enabling write barrier flush mode [pid 5255] mount(NULL, ".", 0x200000c0, 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 5255] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5255] chdir(".") = 0 [pid 5255] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5255] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5255] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5255] close(3) = 0 [pid 5255] close(4) = 0 [pid 5255] close(5) = 0 [pid 5255] close(6) = -1 EBADF (Bad file descriptor) [pid 5255] close(7) = -1 EBADF (Bad file descriptor) [pid 5255] close(8) = -1 EBADF (Bad file descriptor) [pid 5255] close(9) = -1 EBADF (Bad file descriptor) [pid 5255] close(10) = -1 EBADF (Bad file descriptor) [pid 5255] close(11) = -1 EBADF (Bad file descriptor) [pid 5255] close(12) = -1 EBADF (Bad file descriptor) [pid 5255] close(13) = -1 EBADF (Bad file descriptor) [pid 5255] close(14) = -1 EBADF (Bad file descriptor) [pid 5255] close(15) = -1 EBADF (Bad file descriptor) [pid 5255] close(16) = -1 EBADF (Bad file descriptor) [pid 5255] close(17) = -1 EBADF (Bad file descriptor) [pid 5255] close(18) = -1 EBADF (Bad file descriptor) [pid 5255] close(19) = -1 EBADF (Bad file descriptor) [pid 5255] close(20) = -1 EBADF (Bad file descriptor) [pid 5255] close(21) = -1 EBADF (Bad file descriptor) [pid 5255] close(22) = -1 EBADF (Bad file descriptor) [pid 5255] close(23) = -1 EBADF (Bad file descriptor) [pid 5255] close(24) = -1 EBADF (Bad file descriptor) [pid 5255] close(25) = -1 EBADF (Bad file descriptor) [pid 5255] close(26) = -1 EBADF (Bad file descriptor) [pid 5255] close(27) = -1 EBADF (Bad file descriptor) [pid 5255] close(28) = -1 EBADF (Bad file descriptor) [pid 5255] close(29) = -1 EBADF (Bad file descriptor) [pid 5255] exit_group(0) = ? [pid 5255] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=108, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./106/binderfs") = 0 [ 103.786754][ T5255] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./106/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./106/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./106") = 0 [pid 5039] mkdir("./107", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5257 attached [pid 5257] set_robust_list(0x555555e46660, 24) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 109 [pid 5257] chdir("./107") = 0 [pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5257] setpgid(0, 0) = 0 [pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5257] write(3, "1000", 4) = 4 [pid 5257] close(3) = 0 [pid 5257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5257] memfd_create("syzkaller", 0) = 3 [pid 5257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5257] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5257] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5257] close(3) = 0 [pid 5257] mkdir("./file0", 0777) = 0 [ 103.959291][ T5257] loop0: detected capacity change from 0 to 8192 [ 103.971499][ T5257] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 103.984816][ T5257] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 103.994285][ T5257] REISERFS (device loop0): using ordered data mode [ 104.000986][ T5257] reiserfs: using flush barriers [pid 5257] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5257] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5257] chdir("./file0") = 0 [pid 5257] ioctl(4, LOOP_CLR_FD) = 0 [pid 5257] close(4) = 0 [pid 5257] mkdir(".", 0777) = -1 EEXIST (File exists) [ 104.007567][ T5257] 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 [ 104.024253][ T5257] REISERFS (device loop0): checking transaction log (loop0) [ 104.032967][ T5257] REISERFS (device loop0): Using r5 hash to sort names [pid 5257] mount(NULL, ".", 0x200000c0, 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 5257] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5257] chdir(".") = 0 [pid 5257] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5257] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5257] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5257] close(3) = 0 [pid 5257] close(4) = 0 [pid 5257] close(5) = 0 [pid 5257] close(6) = -1 EBADF (Bad file descriptor) [pid 5257] close(7) = -1 EBADF (Bad file descriptor) [pid 5257] close(8) = -1 EBADF (Bad file descriptor) [pid 5257] close(9) = -1 EBADF (Bad file descriptor) [pid 5257] close(10) = -1 EBADF (Bad file descriptor) [pid 5257] close(11) = -1 EBADF (Bad file descriptor) [pid 5257] close(12) = -1 EBADF (Bad file descriptor) [pid 5257] close(13) = -1 EBADF (Bad file descriptor) [pid 5257] close(14) = -1 EBADF (Bad file descriptor) [pid 5257] close(15) = -1 EBADF (Bad file descriptor) [pid 5257] close(16) = -1 EBADF (Bad file descriptor) [pid 5257] close(17) = -1 EBADF (Bad file descriptor) [pid 5257] close(18) = -1 EBADF (Bad file descriptor) [pid 5257] close(19) = -1 EBADF (Bad file descriptor) [pid 5257] close(20) = -1 EBADF (Bad file descriptor) [pid 5257] close(21) = -1 EBADF (Bad file descriptor) [pid 5257] close(22) = -1 EBADF (Bad file descriptor) [pid 5257] close(23) = -1 EBADF (Bad file descriptor) [pid 5257] close(24) = -1 EBADF (Bad file descriptor) [pid 5257] close(25) = -1 EBADF (Bad file descriptor) [pid 5257] close(26) = -1 EBADF (Bad file descriptor) [pid 5257] close(27) = -1 EBADF (Bad file descriptor) [pid 5257] close(28) = -1 EBADF (Bad file descriptor) [pid 5257] close(29) = -1 EBADF (Bad file descriptor) [pid 5257] exit_group(0) = ? [pid 5257] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=109, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./107/binderfs") = 0 [ 104.058596][ T5257] reiserfs: enabling write barrier flush mode [ 104.067902][ T5257] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./107/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./107/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./107") = 0 [pid 5039] mkdir("./108", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5259 attached , child_tidptr=0x555555e46650) = 110 [pid 5259] set_robust_list(0x555555e46660, 24) = 0 [pid 5259] chdir("./108") = 0 [pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5259] setpgid(0, 0) = 0 [pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5259] write(3, "1000", 4) = 4 [pid 5259] close(3) = 0 [pid 5259] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5259] memfd_create("syzkaller", 0) = 3 [pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5259] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5259] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5259] close(3) = 0 [pid 5259] mkdir("./file0", 0777) = 0 [ 104.235695][ T5259] loop0: detected capacity change from 0 to 8192 [ 104.246458][ T5259] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.259507][ T5259] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 104.268873][ T5259] REISERFS (device loop0): using ordered data mode [ 104.275460][ T5259] reiserfs: using flush barriers [pid 5259] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5259] chdir("./file0") = 0 [pid 5259] ioctl(4, LOOP_CLR_FD) = 0 [pid 5259] close(4) = 0 [pid 5259] mkdir(".", 0777) = -1 EEXIST (File exists) [ 104.281866][ T5259] 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 [ 104.298548][ T5259] REISERFS (device loop0): checking transaction log (loop0) [ 104.306761][ T5259] REISERFS (device loop0): Using r5 hash to sort names [ 104.319558][ T5259] reiserfs: enabling write barrier flush mode [pid 5259] mount(NULL, ".", 0x200000c0, 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 5259] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5259] chdir(".") = 0 [pid 5259] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5259] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5259] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5259] close(3) = 0 [pid 5259] close(4) = 0 [pid 5259] close(5) = 0 [pid 5259] close(6) = -1 EBADF (Bad file descriptor) [pid 5259] close(7) = -1 EBADF (Bad file descriptor) [pid 5259] close(8) = -1 EBADF (Bad file descriptor) [pid 5259] close(9) = -1 EBADF (Bad file descriptor) [pid 5259] close(10) = -1 EBADF (Bad file descriptor) [pid 5259] close(11) = -1 EBADF (Bad file descriptor) [pid 5259] close(12) = -1 EBADF (Bad file descriptor) [pid 5259] close(13) = -1 EBADF (Bad file descriptor) [pid 5259] close(14) = -1 EBADF (Bad file descriptor) [pid 5259] close(15) = -1 EBADF (Bad file descriptor) [pid 5259] close(16) = -1 EBADF (Bad file descriptor) [pid 5259] close(17) = -1 EBADF (Bad file descriptor) [pid 5259] close(18) = -1 EBADF (Bad file descriptor) [pid 5259] close(19) = -1 EBADF (Bad file descriptor) [pid 5259] close(20) = -1 EBADF (Bad file descriptor) [pid 5259] close(21) = -1 EBADF (Bad file descriptor) [pid 5259] close(22) = -1 EBADF (Bad file descriptor) [pid 5259] close(23) = -1 EBADF (Bad file descriptor) [pid 5259] close(24) = -1 EBADF (Bad file descriptor) [pid 5259] close(25) = -1 EBADF (Bad file descriptor) [pid 5259] close(26) = -1 EBADF (Bad file descriptor) [pid 5259] close(27) = -1 EBADF (Bad file descriptor) [pid 5259] close(28) = -1 EBADF (Bad file descriptor) [pid 5259] close(29) = -1 EBADF (Bad file descriptor) [pid 5259] exit_group(0) = ? [pid 5259] +++ exited with 0 +++ [ 104.329805][ T5259] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=110, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./108/binderfs") = 0 [pid 5039] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./108/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./108") = 0 [pid 5039] mkdir("./109", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 111 ./strace-static-x86_64: Process 5261 attached [pid 5261] set_robust_list(0x555555e46660, 24) = 0 [pid 5261] chdir("./109") = 0 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5261] write(3, "1000", 4) = 4 [pid 5261] close(3) = 0 [pid 5261] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5261] memfd_create("syzkaller", 0) = 3 [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5261] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5261] close(3) = 0 [pid 5261] mkdir("./file0", 0777) = 0 [ 104.526367][ T5261] loop0: detected capacity change from 0 to 8192 [ 104.537027][ T5261] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.550119][ T5261] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 104.559442][ T5261] REISERFS (device loop0): using ordered data mode [ 104.566031][ T5261] reiserfs: using flush barriers [pid 5261] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5261] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5261] chdir("./file0") = 0 [pid 5261] ioctl(4, LOOP_CLR_FD) = 0 [pid 5261] close(4) = 0 [pid 5261] mkdir(".", 0777) = -1 EEXIST (File exists) [ 104.572722][ T5261] 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 [ 104.589525][ T5261] REISERFS (device loop0): checking transaction log (loop0) [ 104.597939][ T5261] REISERFS (device loop0): Using r5 hash to sort names [ 104.612646][ T5261] reiserfs: enabling write barrier flush mode [pid 5261] mount(NULL, ".", 0x200000c0, 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 5261] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5261] chdir(".") = 0 [pid 5261] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5261] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5261] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5261] close(3) = 0 [pid 5261] close(4) = 0 [pid 5261] close(5) = 0 [pid 5261] close(6) = -1 EBADF (Bad file descriptor) [pid 5261] close(7) = -1 EBADF (Bad file descriptor) [pid 5261] close(8) = -1 EBADF (Bad file descriptor) [pid 5261] close(9) = -1 EBADF (Bad file descriptor) [pid 5261] close(10) = -1 EBADF (Bad file descriptor) [pid 5261] close(11) = -1 EBADF (Bad file descriptor) [pid 5261] close(12) = -1 EBADF (Bad file descriptor) [pid 5261] close(13) = -1 EBADF (Bad file descriptor) [pid 5261] close(14) = -1 EBADF (Bad file descriptor) [pid 5261] close(15) = -1 EBADF (Bad file descriptor) [pid 5261] close(16) = -1 EBADF (Bad file descriptor) [pid 5261] close(17) = -1 EBADF (Bad file descriptor) [pid 5261] close(18) = -1 EBADF (Bad file descriptor) [pid 5261] close(19) = -1 EBADF (Bad file descriptor) [pid 5261] close(20) = -1 EBADF (Bad file descriptor) [pid 5261] close(21) = -1 EBADF (Bad file descriptor) [pid 5261] close(22) = -1 EBADF (Bad file descriptor) [pid 5261] close(23) = -1 EBADF (Bad file descriptor) [pid 5261] close(24) = -1 EBADF (Bad file descriptor) [pid 5261] close(25) = -1 EBADF (Bad file descriptor) [pid 5261] close(26) = -1 EBADF (Bad file descriptor) [pid 5261] close(27) = -1 EBADF (Bad file descriptor) [pid 5261] close(28) = -1 EBADF (Bad file descriptor) [pid 5261] close(29) = -1 EBADF (Bad file descriptor) [pid 5261] exit_group(0) = ? [pid 5261] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=111, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./109/binderfs") = 0 [ 104.626424][ T5261] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./109/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./109/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./109") = 0 [pid 5039] mkdir("./110", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5263 attached , child_tidptr=0x555555e46650) = 112 [pid 5263] set_robust_list(0x555555e46660, 24) = 0 [pid 5263] chdir("./110") = 0 [pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5263] setpgid(0, 0) = 0 [pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5263] write(3, "1000", 4) = 4 [pid 5263] close(3) = 0 [pid 5263] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5263] memfd_create("syzkaller", 0) = 3 [pid 5263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5263] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5263] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5263] close(3) = 0 [pid 5263] mkdir("./file0", 0777) = 0 [ 104.805198][ T5263] loop0: detected capacity change from 0 to 8192 [ 104.816324][ T5263] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 104.829572][ T5263] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 104.839226][ T5263] REISERFS (device loop0): using ordered data mode [ 104.845802][ T5263] reiserfs: using flush barriers [pid 5263] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5263] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5263] chdir("./file0") = 0 [pid 5263] ioctl(4, LOOP_CLR_FD) = 0 [pid 5263] close(4) = 0 [pid 5263] mkdir(".", 0777) = -1 EEXIST (File exists) [ 104.852230][ T5263] 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 [ 104.868751][ T5263] REISERFS (device loop0): checking transaction log (loop0) [ 104.877239][ T5263] REISERFS (device loop0): Using r5 hash to sort names [ 104.890887][ T5263] reiserfs: enabling write barrier flush mode [pid 5263] mount(NULL, ".", 0x200000c0, 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 5263] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5263] chdir(".") = 0 [pid 5263] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5263] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5263] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5263] close(3) = 0 [pid 5263] close(4) = 0 [pid 5263] close(5) = 0 [pid 5263] close(6) = -1 EBADF (Bad file descriptor) [pid 5263] close(7) = -1 EBADF (Bad file descriptor) [pid 5263] close(8) = -1 EBADF (Bad file descriptor) [pid 5263] close(9) = -1 EBADF (Bad file descriptor) [pid 5263] close(10) = -1 EBADF (Bad file descriptor) [pid 5263] close(11) = -1 EBADF (Bad file descriptor) [pid 5263] close(12) = -1 EBADF (Bad file descriptor) [pid 5263] close(13) = -1 EBADF (Bad file descriptor) [pid 5263] close(14) = -1 EBADF (Bad file descriptor) [pid 5263] close(15) = -1 EBADF (Bad file descriptor) [pid 5263] close(16) = -1 EBADF (Bad file descriptor) [pid 5263] close(17) = -1 EBADF (Bad file descriptor) [pid 5263] close(18) = -1 EBADF (Bad file descriptor) [pid 5263] close(19) = -1 EBADF (Bad file descriptor) [pid 5263] close(20) = -1 EBADF (Bad file descriptor) [pid 5263] close(21) = -1 EBADF (Bad file descriptor) [pid 5263] close(22) = -1 EBADF (Bad file descriptor) [pid 5263] close(23) = -1 EBADF (Bad file descriptor) [pid 5263] close(24) = -1 EBADF (Bad file descriptor) [pid 5263] close(25) = -1 EBADF (Bad file descriptor) [pid 5263] close(26) = -1 EBADF (Bad file descriptor) [pid 5263] close(27) = -1 EBADF (Bad file descriptor) [pid 5263] close(28) = -1 EBADF (Bad file descriptor) [pid 5263] close(29) = -1 EBADF (Bad file descriptor) [pid 5263] exit_group(0) = ? [pid 5263] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=112, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 104.901667][ T5263] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./110/binderfs") = 0 [pid 5039] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./110/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./110/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./110") = 0 [pid 5039] mkdir("./111", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 113 ./strace-static-x86_64: Process 5265 attached [pid 5265] set_robust_list(0x555555e46660, 24) = 0 [pid 5265] chdir("./111") = 0 [pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5265] setpgid(0, 0) = 0 [pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5265] write(3, "1000", 4) = 4 [pid 5265] close(3) = 0 [pid 5265] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5265] memfd_create("syzkaller", 0) = 3 [pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5265] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5265] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5265] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5265] close(3) = 0 [pid 5265] mkdir("./file0", 0777) = 0 [ 105.084364][ T5265] loop0: detected capacity change from 0 to 8192 [ 105.094449][ T5265] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.107552][ T5265] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 105.116827][ T5265] REISERFS (device loop0): using ordered data mode [ 105.123353][ T5265] reiserfs: using flush barriers [pid 5265] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5265] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5265] chdir("./file0") = 0 [pid 5265] ioctl(4, LOOP_CLR_FD) = 0 [pid 5265] close(4) = 0 [pid 5265] mkdir(".", 0777) = -1 EEXIST (File exists) [ 105.129950][ T5265] 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 [ 105.146528][ T5265] REISERFS (device loop0): checking transaction log (loop0) [ 105.154797][ T5265] REISERFS (device loop0): Using r5 hash to sort names [ 105.174344][ T5265] reiserfs: enabling write barrier flush mode [pid 5265] mount(NULL, ".", 0x200000c0, 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 5265] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5265] chdir(".") = 0 [pid 5265] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5265] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5265] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5265] close(3) = 0 [pid 5265] close(4) = 0 [pid 5265] close(5) = 0 [pid 5265] close(6) = -1 EBADF (Bad file descriptor) [pid 5265] close(7) = -1 EBADF (Bad file descriptor) [pid 5265] close(8) = -1 EBADF (Bad file descriptor) [pid 5265] close(9) = -1 EBADF (Bad file descriptor) [pid 5265] close(10) = -1 EBADF (Bad file descriptor) [pid 5265] close(11) = -1 EBADF (Bad file descriptor) [pid 5265] close(12) = -1 EBADF (Bad file descriptor) [pid 5265] close(13) = -1 EBADF (Bad file descriptor) [pid 5265] close(14) = -1 EBADF (Bad file descriptor) [pid 5265] close(15) = -1 EBADF (Bad file descriptor) [pid 5265] close(16) = -1 EBADF (Bad file descriptor) [pid 5265] close(17) = -1 EBADF (Bad file descriptor) [pid 5265] close(18) = -1 EBADF (Bad file descriptor) [pid 5265] close(19) = -1 EBADF (Bad file descriptor) [pid 5265] close(20) = -1 EBADF (Bad file descriptor) [pid 5265] close(21) = -1 EBADF (Bad file descriptor) [pid 5265] close(22) = -1 EBADF (Bad file descriptor) [pid 5265] close(23) = -1 EBADF (Bad file descriptor) [pid 5265] close(24) = -1 EBADF (Bad file descriptor) [pid 5265] close(25) = -1 EBADF (Bad file descriptor) [pid 5265] close(26) = -1 EBADF (Bad file descriptor) [pid 5265] close(27) = -1 EBADF (Bad file descriptor) [pid 5265] close(28) = -1 EBADF (Bad file descriptor) [pid 5265] close(29) = -1 EBADF (Bad file descriptor) [pid 5265] exit_group(0) = ? [pid 5265] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=113, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./111/binderfs") = 0 [ 105.184733][ T5265] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./111/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./111") = 0 [pid 5039] mkdir("./112", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5267 attached [pid 5267] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 114 [pid 5267] <... set_robust_list resumed>) = 0 [pid 5267] chdir("./112") = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5267] setpgid(0, 0) = 0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3) = 0 [pid 5267] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5267] memfd_create("syzkaller", 0) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5267] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5267] close(3) = 0 [pid 5267] mkdir("./file0", 0777) = 0 [ 105.348940][ T5267] loop0: detected capacity change from 0 to 8192 [ 105.359453][ T5267] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.372486][ T5267] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 105.381860][ T5267] REISERFS (device loop0): using ordered data mode [ 105.388471][ T5267] reiserfs: using flush barriers [pid 5267] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5267] chdir("./file0") = 0 [pid 5267] ioctl(4, LOOP_CLR_FD) = 0 [pid 5267] close(4) = 0 [pid 5267] mkdir(".", 0777) = -1 EEXIST (File exists) [ 105.394934][ T5267] 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 [ 105.411461][ T5267] REISERFS (device loop0): checking transaction log (loop0) [ 105.419886][ T5267] REISERFS (device loop0): Using r5 hash to sort names [ 105.442716][ T5267] reiserfs: enabling write barrier flush mode [pid 5267] mount(NULL, ".", 0x200000c0, 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 5267] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5267] chdir(".") = 0 [pid 5267] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5267] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5267] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5267] close(3) = 0 [pid 5267] close(4) = 0 [pid 5267] close(5) = 0 [pid 5267] close(6) = -1 EBADF (Bad file descriptor) [pid 5267] close(7) = -1 EBADF (Bad file descriptor) [pid 5267] close(8) = -1 EBADF (Bad file descriptor) [pid 5267] close(9) = -1 EBADF (Bad file descriptor) [pid 5267] close(10) = -1 EBADF (Bad file descriptor) [pid 5267] close(11) = -1 EBADF (Bad file descriptor) [pid 5267] close(12) = -1 EBADF (Bad file descriptor) [pid 5267] close(13) = -1 EBADF (Bad file descriptor) [pid 5267] close(14) = -1 EBADF (Bad file descriptor) [pid 5267] close(15) = -1 EBADF (Bad file descriptor) [pid 5267] close(16) = -1 EBADF (Bad file descriptor) [pid 5267] close(17) = -1 EBADF (Bad file descriptor) [pid 5267] close(18) = -1 EBADF (Bad file descriptor) [pid 5267] close(19) = -1 EBADF (Bad file descriptor) [pid 5267] close(20) = -1 EBADF (Bad file descriptor) [pid 5267] close(21) = -1 EBADF (Bad file descriptor) [pid 5267] close(22) = -1 EBADF (Bad file descriptor) [pid 5267] close(23) = -1 EBADF (Bad file descriptor) [pid 5267] close(24) = -1 EBADF (Bad file descriptor) [pid 5267] close(25) = -1 EBADF (Bad file descriptor) [pid 5267] close(26) = -1 EBADF (Bad file descriptor) [pid 5267] close(27) = -1 EBADF (Bad file descriptor) [pid 5267] close(28) = -1 EBADF (Bad file descriptor) [pid 5267] close(29) = -1 EBADF (Bad file descriptor) [pid 5267] exit_group(0) = ? [pid 5267] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=114, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./112/binderfs") = 0 [ 105.454590][ T5267] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./112/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./112/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./112") = 0 [pid 5039] mkdir("./113", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached , child_tidptr=0x555555e46650) = 115 [pid 5269] set_robust_list(0x555555e46660, 24) = 0 [pid 5269] chdir("./113") = 0 [pid 5269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5269] setpgid(0, 0) = 0 [pid 5269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5269] write(3, "1000", 4) = 4 [pid 5269] close(3) = 0 [pid 5269] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5269] memfd_create("syzkaller", 0) = 3 [pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5269] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5269] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5269] close(3) = 0 [pid 5269] mkdir("./file0", 0777) = 0 [ 105.618749][ T5269] loop0: detected capacity change from 0 to 8192 [ 105.630111][ T5269] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.643299][ T5269] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 105.652578][ T5269] REISERFS (device loop0): using ordered data mode [ 105.659156][ T5269] reiserfs: using flush barriers [pid 5269] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5269] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5269] chdir("./file0") = 0 [pid 5269] ioctl(4, LOOP_CLR_FD) = 0 [pid 5269] close(4) = 0 [pid 5269] mkdir(".", 0777) = -1 EEXIST (File exists) [ 105.665645][ T5269] 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 [ 105.682173][ T5269] REISERFS (device loop0): checking transaction log (loop0) [ 105.690661][ T5269] REISERFS (device loop0): Using r5 hash to sort names [ 105.700953][ T5269] reiserfs: enabling write barrier flush mode [pid 5269] mount(NULL, ".", 0x200000c0, 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 5269] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5269] chdir(".") = 0 [pid 5269] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5269] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5269] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5269] close(3) = 0 [pid 5269] close(4) = 0 [pid 5269] close(5) = 0 [pid 5269] close(6) = -1 EBADF (Bad file descriptor) [pid 5269] close(7) = -1 EBADF (Bad file descriptor) [pid 5269] close(8) = -1 EBADF (Bad file descriptor) [pid 5269] close(9) = -1 EBADF (Bad file descriptor) [pid 5269] close(10) = -1 EBADF (Bad file descriptor) [pid 5269] close(11) = -1 EBADF (Bad file descriptor) [pid 5269] close(12) = -1 EBADF (Bad file descriptor) [pid 5269] close(13) = -1 EBADF (Bad file descriptor) [pid 5269] close(14) = -1 EBADF (Bad file descriptor) [pid 5269] close(15) = -1 EBADF (Bad file descriptor) [pid 5269] close(16) = -1 EBADF (Bad file descriptor) [pid 5269] close(17) = -1 EBADF (Bad file descriptor) [pid 5269] close(18) = -1 EBADF (Bad file descriptor) [pid 5269] close(19) = -1 EBADF (Bad file descriptor) [pid 5269] close(20) = -1 EBADF (Bad file descriptor) [pid 5269] close(21) = -1 EBADF (Bad file descriptor) [pid 5269] close(22) = -1 EBADF (Bad file descriptor) [pid 5269] close(23) = -1 EBADF (Bad file descriptor) [pid 5269] close(24) = -1 EBADF (Bad file descriptor) [pid 5269] close(25) = -1 EBADF (Bad file descriptor) [pid 5269] close(26) = -1 EBADF (Bad file descriptor) [pid 5269] close(27) = -1 EBADF (Bad file descriptor) [pid 5269] close(28) = -1 EBADF (Bad file descriptor) [pid 5269] close(29) = -1 EBADF (Bad file descriptor) [pid 5269] exit_group(0) = ? [pid 5269] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=115, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./113/binderfs") = 0 [ 105.714562][ T5269] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./113/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./113/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./113/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./113") = 0 [pid 5039] mkdir("./114", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5271 attached [pid 5271] set_robust_list(0x555555e46660, 24) = 0 [pid 5271] chdir("./114") = 0 [pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5271] setpgid(0, 0) = 0 [pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5271] write(3, "1000", 4) = 4 [pid 5271] close(3) = 0 [pid 5271] symlink("/dev/binderfs", "./binderfs" [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 116 [pid 5271] <... symlink resumed>) = 0 [pid 5271] memfd_create("syzkaller", 0) = 3 [pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5271] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5271] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5271] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5271] close(3) = 0 [pid 5271] mkdir("./file0", 0777) = 0 [ 105.878039][ T5271] loop0: detected capacity change from 0 to 8192 [ 105.889416][ T5271] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 105.902518][ T5271] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 105.912029][ T5271] REISERFS (device loop0): using ordered data mode [ 105.918736][ T5271] reiserfs: using flush barriers [pid 5271] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5271] chdir("./file0") = 0 [pid 5271] ioctl(4, LOOP_CLR_FD) = 0 [pid 5271] close(4) = 0 [pid 5271] mkdir(".", 0777) = -1 EEXIST (File exists) [ 105.926079][ T5271] 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 [ 105.942684][ T5271] REISERFS (device loop0): checking transaction log (loop0) [ 105.952202][ T5271] REISERFS (device loop0): Using r5 hash to sort names [ 105.965060][ T5271] reiserfs: enabling write barrier flush mode [pid 5271] mount(NULL, ".", 0x200000c0, 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 5271] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5271] chdir(".") = 0 [pid 5271] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5271] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5271] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5271] close(3) = 0 [pid 5271] close(4) = 0 [pid 5271] close(5) = 0 [pid 5271] close(6) = -1 EBADF (Bad file descriptor) [pid 5271] close(7) = -1 EBADF (Bad file descriptor) [pid 5271] close(8) = -1 EBADF (Bad file descriptor) [pid 5271] close(9) = -1 EBADF (Bad file descriptor) [pid 5271] close(10) = -1 EBADF (Bad file descriptor) [pid 5271] close(11) = -1 EBADF (Bad file descriptor) [pid 5271] close(12) = -1 EBADF (Bad file descriptor) [pid 5271] close(13) = -1 EBADF (Bad file descriptor) [pid 5271] close(14) = -1 EBADF (Bad file descriptor) [pid 5271] close(15) = -1 EBADF (Bad file descriptor) [pid 5271] close(16) = -1 EBADF (Bad file descriptor) [pid 5271] close(17) = -1 EBADF (Bad file descriptor) [pid 5271] close(18) = -1 EBADF (Bad file descriptor) [pid 5271] close(19) = -1 EBADF (Bad file descriptor) [pid 5271] close(20) = -1 EBADF (Bad file descriptor) [pid 5271] close(21) = -1 EBADF (Bad file descriptor) [pid 5271] close(22) = -1 EBADF (Bad file descriptor) [pid 5271] close(23) = -1 EBADF (Bad file descriptor) [pid 5271] close(24) = -1 EBADF (Bad file descriptor) [pid 5271] close(25) = -1 EBADF (Bad file descriptor) [pid 5271] close(26) = -1 EBADF (Bad file descriptor) [pid 5271] close(27) = -1 EBADF (Bad file descriptor) [pid 5271] close(28) = -1 EBADF (Bad file descriptor) [pid 5271] close(29) = -1 EBADF (Bad file descriptor) [pid 5271] exit_group(0) = ? [pid 5271] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=116, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./114/binderfs") = 0 [ 105.975535][ T5271] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./114/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./114/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./114/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./114") = 0 [pid 5039] mkdir("./115", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 117 ./strace-static-x86_64: Process 5273 attached [pid 5273] set_robust_list(0x555555e46660, 24) = 0 [pid 5273] chdir("./115") = 0 [pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5273] setpgid(0, 0) = 0 [pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5273] write(3, "1000", 4) = 4 [pid 5273] close(3) = 0 [pid 5273] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5273] memfd_create("syzkaller", 0) = 3 [pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5273] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5273] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5273] close(3) = 0 [pid 5273] mkdir("./file0", 0777) = 0 [ 106.150663][ T5273] loop0: detected capacity change from 0 to 8192 [ 106.160874][ T5273] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.173921][ T5273] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 106.183268][ T5273] REISERFS (device loop0): using ordered data mode [ 106.189827][ T5273] reiserfs: using flush barriers [pid 5273] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5273] chdir("./file0") = 0 [pid 5273] ioctl(4, LOOP_CLR_FD) = 0 [pid 5273] close(4) = 0 [pid 5273] mkdir(".", 0777) = -1 EEXIST (File exists) [ 106.196251][ T5273] 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 [ 106.212858][ T5273] REISERFS (device loop0): checking transaction log (loop0) [ 106.221340][ T5273] REISERFS (device loop0): Using r5 hash to sort names [ 106.235157][ T5273] reiserfs: enabling write barrier flush mode [pid 5273] mount(NULL, ".", 0x200000c0, 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 5273] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5273] chdir(".") = 0 [pid 5273] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5273] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5273] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5273] close(3) = 0 [pid 5273] close(4) = 0 [pid 5273] close(5) = 0 [pid 5273] close(6) = -1 EBADF (Bad file descriptor) [pid 5273] close(7) = -1 EBADF (Bad file descriptor) [pid 5273] close(8) = -1 EBADF (Bad file descriptor) [pid 5273] close(9) = -1 EBADF (Bad file descriptor) [pid 5273] close(10) = -1 EBADF (Bad file descriptor) [pid 5273] close(11) = -1 EBADF (Bad file descriptor) [pid 5273] close(12) = -1 EBADF (Bad file descriptor) [pid 5273] close(13) = -1 EBADF (Bad file descriptor) [pid 5273] close(14) = -1 EBADF (Bad file descriptor) [pid 5273] close(15) = -1 EBADF (Bad file descriptor) [pid 5273] close(16) = -1 EBADF (Bad file descriptor) [pid 5273] close(17) = -1 EBADF (Bad file descriptor) [pid 5273] close(18) = -1 EBADF (Bad file descriptor) [pid 5273] close(19) = -1 EBADF (Bad file descriptor) [pid 5273] close(20) = -1 EBADF (Bad file descriptor) [pid 5273] close(21) = -1 EBADF (Bad file descriptor) [pid 5273] close(22) = -1 EBADF (Bad file descriptor) [pid 5273] close(23) = -1 EBADF (Bad file descriptor) [pid 5273] close(24) = -1 EBADF (Bad file descriptor) [pid 5273] close(25) = -1 EBADF (Bad file descriptor) [pid 5273] close(26) = -1 EBADF (Bad file descriptor) [pid 5273] close(27) = -1 EBADF (Bad file descriptor) [pid 5273] close(28) = -1 EBADF (Bad file descriptor) [pid 5273] close(29) = -1 EBADF (Bad file descriptor) [pid 5273] exit_group(0) = ? [ 106.246350][ T5273] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5273] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=117, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./115/binderfs") = 0 [pid 5039] umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./115/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./115/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./115/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./115") = 0 [pid 5039] mkdir("./116", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5275 attached , child_tidptr=0x555555e46650) = 118 [pid 5275] set_robust_list(0x555555e46660, 24) = 0 [pid 5275] chdir("./116") = 0 [pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5275] setpgid(0, 0) = 0 [pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5275] write(3, "1000", 4) = 4 [pid 5275] close(3) = 0 [pid 5275] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5275] memfd_create("syzkaller", 0) = 3 [pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5275] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5275] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5275] close(3) = 0 [pid 5275] mkdir("./file0", 0777) = 0 [ 106.444592][ T5275] loop0: detected capacity change from 0 to 8192 [ 106.455294][ T5275] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.468378][ T5275] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 106.477667][ T5275] REISERFS (device loop0): using ordered data mode [ 106.484213][ T5275] reiserfs: using flush barriers [pid 5275] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5275] chdir("./file0") = 0 [pid 5275] ioctl(4, LOOP_CLR_FD) = 0 [pid 5275] close(4) = 0 [pid 5275] mkdir(".", 0777) = -1 EEXIST (File exists) [ 106.490811][ T5275] 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 [ 106.507527][ T5275] REISERFS (device loop0): checking transaction log (loop0) [ 106.515921][ T5275] REISERFS (device loop0): Using r5 hash to sort names [ 106.537631][ T5275] reiserfs: enabling write barrier flush mode [pid 5275] mount(NULL, ".", 0x200000c0, 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 5275] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5275] chdir(".") = 0 [pid 5275] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5275] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5275] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5275] close(3) = 0 [pid 5275] close(4) = 0 [pid 5275] close(5) = 0 [pid 5275] close(6) = -1 EBADF (Bad file descriptor) [pid 5275] close(7) = -1 EBADF (Bad file descriptor) [pid 5275] close(8) = -1 EBADF (Bad file descriptor) [pid 5275] close(9) = -1 EBADF (Bad file descriptor) [pid 5275] close(10) = -1 EBADF (Bad file descriptor) [pid 5275] close(11) = -1 EBADF (Bad file descriptor) [pid 5275] close(12) = -1 EBADF (Bad file descriptor) [pid 5275] close(13) = -1 EBADF (Bad file descriptor) [pid 5275] close(14) = -1 EBADF (Bad file descriptor) [pid 5275] close(15) = -1 EBADF (Bad file descriptor) [pid 5275] close(16) = -1 EBADF (Bad file descriptor) [pid 5275] close(17) = -1 EBADF (Bad file descriptor) [pid 5275] close(18) = -1 EBADF (Bad file descriptor) [pid 5275] close(19) = -1 EBADF (Bad file descriptor) [pid 5275] close(20) = -1 EBADF (Bad file descriptor) [pid 5275] close(21) = -1 EBADF (Bad file descriptor) [pid 5275] close(22) = -1 EBADF (Bad file descriptor) [pid 5275] close(23) = -1 EBADF (Bad file descriptor) [pid 5275] close(24) = -1 EBADF (Bad file descriptor) [pid 5275] close(25) = -1 EBADF (Bad file descriptor) [pid 5275] close(26) = -1 EBADF (Bad file descriptor) [pid 5275] close(27) = -1 EBADF (Bad file descriptor) [pid 5275] close(28) = -1 EBADF (Bad file descriptor) [pid 5275] close(29) = -1 EBADF (Bad file descriptor) [pid 5275] exit_group(0) = ? [pid 5275] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=118, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./116/binderfs") = 0 [ 106.548570][ T5275] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./116/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./116/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./116/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./116") = 0 [pid 5039] mkdir("./117", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5277 attached [pid 5277] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 119 [pid 5277] <... set_robust_list resumed>) = 0 [pid 5277] chdir("./117") = 0 [pid 5277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5277] setpgid(0, 0) = 0 [pid 5277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5277] write(3, "1000", 4) = 4 [pid 5277] close(3) = 0 [pid 5277] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5277] memfd_create("syzkaller", 0) = 3 [pid 5277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5277] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5277] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5277] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5277] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5277] close(3) = 0 [pid 5277] mkdir("./file0", 0777) = 0 [ 106.719269][ T5277] loop0: detected capacity change from 0 to 8192 [ 106.730930][ T5277] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 106.743992][ T5277] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 106.753239][ T5277] REISERFS (device loop0): using ordered data mode [ 106.759902][ T5277] reiserfs: using flush barriers [pid 5277] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5277] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5277] chdir("./file0") = 0 [pid 5277] ioctl(4, LOOP_CLR_FD) = 0 [pid 5277] close(4) = 0 [pid 5277] mkdir(".", 0777) = -1 EEXIST (File exists) [ 106.766175][ T5277] 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 [ 106.782846][ T5277] REISERFS (device loop0): checking transaction log (loop0) [ 106.791306][ T5277] REISERFS (device loop0): Using r5 hash to sort names [ 106.806214][ T5277] reiserfs: enabling write barrier flush mode [pid 5277] mount(NULL, ".", 0x200000c0, 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 5277] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5277] chdir(".") = 0 [pid 5277] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5277] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5277] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5277] close(3) = 0 [pid 5277] close(4) = 0 [pid 5277] close(5) = 0 [pid 5277] close(6) = -1 EBADF (Bad file descriptor) [pid 5277] close(7) = -1 EBADF (Bad file descriptor) [pid 5277] close(8) = -1 EBADF (Bad file descriptor) [pid 5277] close(9) = -1 EBADF (Bad file descriptor) [pid 5277] close(10) = -1 EBADF (Bad file descriptor) [pid 5277] close(11) = -1 EBADF (Bad file descriptor) [pid 5277] close(12) = -1 EBADF (Bad file descriptor) [pid 5277] close(13) = -1 EBADF (Bad file descriptor) [pid 5277] close(14) = -1 EBADF (Bad file descriptor) [pid 5277] close(15) = -1 EBADF (Bad file descriptor) [pid 5277] close(16) = -1 EBADF (Bad file descriptor) [pid 5277] close(17) = -1 EBADF (Bad file descriptor) [pid 5277] close(18) = -1 EBADF (Bad file descriptor) [pid 5277] close(19) = -1 EBADF (Bad file descriptor) [pid 5277] close(20) = -1 EBADF (Bad file descriptor) [pid 5277] close(21) = -1 EBADF (Bad file descriptor) [pid 5277] close(22) = -1 EBADF (Bad file descriptor) [pid 5277] close(23) = -1 EBADF (Bad file descriptor) [pid 5277] close(24) = -1 EBADF (Bad file descriptor) [pid 5277] close(25) = -1 EBADF (Bad file descriptor) [pid 5277] close(26) = -1 EBADF (Bad file descriptor) [pid 5277] close(27) = -1 EBADF (Bad file descriptor) [pid 5277] close(28) = -1 EBADF (Bad file descriptor) [pid 5277] close(29) = -1 EBADF (Bad file descriptor) [pid 5277] exit_group(0) = ? [pid 5277] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=119, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./117/binderfs") = 0 [ 106.825858][ T5277] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./117/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./117/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./117/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./117") = 0 [pid 5039] mkdir("./118", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5279 attached , child_tidptr=0x555555e46650) = 120 [pid 5279] set_robust_list(0x555555e46660, 24) = 0 [pid 5279] chdir("./118") = 0 [pid 5279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5279] setpgid(0, 0) = 0 [pid 5279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5279] write(3, "1000", 4) = 4 [pid 5279] close(3) = 0 [pid 5279] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5279] memfd_create("syzkaller", 0) = 3 [pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5279] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5279] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5279] close(3) = 0 [pid 5279] mkdir("./file0", 0777) = 0 [ 106.990166][ T5279] loop0: detected capacity change from 0 to 8192 [ 107.002320][ T5279] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.015506][ T5279] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 107.024763][ T5279] REISERFS (device loop0): using ordered data mode [ 107.031371][ T5279] reiserfs: using flush barriers [pid 5279] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5279] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5279] chdir("./file0") = 0 [pid 5279] ioctl(4, LOOP_CLR_FD) = 0 [pid 5279] close(4) = 0 [pid 5279] mkdir(".", 0777) = -1 EEXIST (File exists) [ 107.038153][ T5279] 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 [ 107.054814][ T5279] REISERFS (device loop0): checking transaction log (loop0) [ 107.063225][ T5279] REISERFS (device loop0): Using r5 hash to sort names [ 107.073736][ T5279] reiserfs: enabling write barrier flush mode [pid 5279] mount(NULL, ".", 0x200000c0, 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 5279] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5279] chdir(".") = 0 [pid 5279] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5279] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5279] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5279] close(3) = 0 [pid 5279] close(4) = 0 [pid 5279] close(5) = 0 [pid 5279] close(6) = -1 EBADF (Bad file descriptor) [pid 5279] close(7) = -1 EBADF (Bad file descriptor) [pid 5279] close(8) = -1 EBADF (Bad file descriptor) [pid 5279] close(9) = -1 EBADF (Bad file descriptor) [pid 5279] close(10) = -1 EBADF (Bad file descriptor) [pid 5279] close(11) = -1 EBADF (Bad file descriptor) [pid 5279] close(12) = -1 EBADF (Bad file descriptor) [pid 5279] close(13) = -1 EBADF (Bad file descriptor) [pid 5279] close(14) = -1 EBADF (Bad file descriptor) [pid 5279] close(15) = -1 EBADF (Bad file descriptor) [pid 5279] close(16) = -1 EBADF (Bad file descriptor) [pid 5279] close(17) = -1 EBADF (Bad file descriptor) [pid 5279] close(18) = -1 EBADF (Bad file descriptor) [pid 5279] close(19) = -1 EBADF (Bad file descriptor) [pid 5279] close(20) = -1 EBADF (Bad file descriptor) [pid 5279] close(21) = -1 EBADF (Bad file descriptor) [pid 5279] close(22) = -1 EBADF (Bad file descriptor) [pid 5279] close(23) = -1 EBADF (Bad file descriptor) [pid 5279] close(24) = -1 EBADF (Bad file descriptor) [pid 5279] close(25) = -1 EBADF (Bad file descriptor) [pid 5279] close(26) = -1 EBADF (Bad file descriptor) [pid 5279] close(27) = -1 EBADF (Bad file descriptor) [pid 5279] close(28) = -1 EBADF (Bad file descriptor) [pid 5279] close(29) = -1 EBADF (Bad file descriptor) [pid 5279] exit_group(0) = ? [pid 5279] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=120, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./118/binderfs") = 0 [ 107.084321][ T5279] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./118/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./118/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./118/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./118") = 0 [pid 5039] mkdir("./119", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5281 attached , child_tidptr=0x555555e46650) = 121 [pid 5281] set_robust_list(0x555555e46660, 24) = 0 [pid 5281] chdir("./119") = 0 [pid 5281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5281] setpgid(0, 0) = 0 [pid 5281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5281] write(3, "1000", 4) = 4 [pid 5281] close(3) = 0 [pid 5281] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5281] memfd_create("syzkaller", 0) = 3 [pid 5281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5281] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5281] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5281] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5281] close(3) = 0 [pid 5281] mkdir("./file0", 0777) = 0 [ 107.253858][ T5281] loop0: detected capacity change from 0 to 8192 [ 107.264390][ T5281] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.277467][ T5281] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 107.286883][ T5281] REISERFS (device loop0): using ordered data mode [ 107.293502][ T5281] reiserfs: using flush barriers [pid 5281] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5281] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5281] chdir("./file0") = 0 [pid 5281] ioctl(4, LOOP_CLR_FD) = 0 [pid 5281] close(4) = 0 [pid 5281] mkdir(".", 0777) = -1 EEXIST (File exists) [ 107.300021][ T5281] 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 [ 107.316637][ T5281] REISERFS (device loop0): checking transaction log (loop0) [ 107.325784][ T5281] REISERFS (device loop0): Using r5 hash to sort names [ 107.346442][ T5281] reiserfs: enabling write barrier flush mode [pid 5281] mount(NULL, ".", 0x200000c0, 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 5281] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5281] chdir(".") = 0 [pid 5281] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5281] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5281] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5281] close(3) = 0 [pid 5281] close(4) = 0 [pid 5281] close(5) = 0 [pid 5281] close(6) = -1 EBADF (Bad file descriptor) [pid 5281] close(7) = -1 EBADF (Bad file descriptor) [pid 5281] close(8) = -1 EBADF (Bad file descriptor) [pid 5281] close(9) = -1 EBADF (Bad file descriptor) [pid 5281] close(10) = -1 EBADF (Bad file descriptor) [pid 5281] close(11) = -1 EBADF (Bad file descriptor) [pid 5281] close(12) = -1 EBADF (Bad file descriptor) [pid 5281] close(13) = -1 EBADF (Bad file descriptor) [pid 5281] close(14) = -1 EBADF (Bad file descriptor) [pid 5281] close(15) = -1 EBADF (Bad file descriptor) [pid 5281] close(16) = -1 EBADF (Bad file descriptor) [pid 5281] close(17) = -1 EBADF (Bad file descriptor) [pid 5281] close(18) = -1 EBADF (Bad file descriptor) [pid 5281] close(19) = -1 EBADF (Bad file descriptor) [pid 5281] close(20) = -1 EBADF (Bad file descriptor) [pid 5281] close(21) = -1 EBADF (Bad file descriptor) [pid 5281] close(22) = -1 EBADF (Bad file descriptor) [pid 5281] close(23) = -1 EBADF (Bad file descriptor) [pid 5281] close(24) = -1 EBADF (Bad file descriptor) [pid 5281] close(25) = -1 EBADF (Bad file descriptor) [pid 5281] close(26) = -1 EBADF (Bad file descriptor) [pid 5281] close(27) = -1 EBADF (Bad file descriptor) [pid 5281] close(28) = -1 EBADF (Bad file descriptor) [pid 5281] close(29) = -1 EBADF (Bad file descriptor) [pid 5281] exit_group(0) = ? [pid 5281] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=121, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./119/binderfs") = 0 [ 107.355588][ T5281] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./119/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./119/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./119/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./119") = 0 [pid 5039] mkdir("./120", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5284 attached [pid 5284] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 122 [pid 5284] <... set_robust_list resumed>) = 0 [pid 5284] chdir("./120") = 0 [pid 5284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5284] setpgid(0, 0) = 0 [pid 5284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5284] write(3, "1000", 4) = 4 [pid 5284] close(3) = 0 [pid 5284] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5284] memfd_create("syzkaller", 0) = 3 [pid 5284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5284] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5284] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5284] close(3) = 0 [pid 5284] mkdir("./file0", 0777) = 0 [ 107.514250][ T5284] loop0: detected capacity change from 0 to 8192 [ 107.526502][ T5284] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.539611][ T5284] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 107.549110][ T5284] REISERFS (device loop0): using ordered data mode [ 107.555678][ T5284] reiserfs: using flush barriers [pid 5284] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5284] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5284] chdir("./file0") = 0 [pid 5284] ioctl(4, LOOP_CLR_FD) = 0 [pid 5284] close(4) = 0 [pid 5284] mkdir(".", 0777) = -1 EEXIST (File exists) [ 107.562037][ T5284] 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 [ 107.578696][ T5284] REISERFS (device loop0): checking transaction log (loop0) [ 107.586836][ T5284] REISERFS (device loop0): Using r5 hash to sort names [ 107.599837][ T5284] reiserfs: enabling write barrier flush mode [pid 5284] mount(NULL, ".", 0x200000c0, 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 5284] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5284] chdir(".") = 0 [pid 5284] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5284] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5284] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5284] close(3) = 0 [pid 5284] close(4) = 0 [pid 5284] close(5) = 0 [pid 5284] close(6) = -1 EBADF (Bad file descriptor) [pid 5284] close(7) = -1 EBADF (Bad file descriptor) [pid 5284] close(8) = -1 EBADF (Bad file descriptor) [pid 5284] close(9) = -1 EBADF (Bad file descriptor) [pid 5284] close(10) = -1 EBADF (Bad file descriptor) [pid 5284] close(11) = -1 EBADF (Bad file descriptor) [pid 5284] close(12) = -1 EBADF (Bad file descriptor) [pid 5284] close(13) = -1 EBADF (Bad file descriptor) [pid 5284] close(14) = -1 EBADF (Bad file descriptor) [pid 5284] close(15) = -1 EBADF (Bad file descriptor) [pid 5284] close(16) = -1 EBADF (Bad file descriptor) [pid 5284] close(17) = -1 EBADF (Bad file descriptor) [pid 5284] close(18) = -1 EBADF (Bad file descriptor) [pid 5284] close(19) = -1 EBADF (Bad file descriptor) [pid 5284] close(20) = -1 EBADF (Bad file descriptor) [pid 5284] close(21) = -1 EBADF (Bad file descriptor) [pid 5284] close(22) = -1 EBADF (Bad file descriptor) [pid 5284] close(23) = -1 EBADF (Bad file descriptor) [pid 5284] close(24) = -1 EBADF (Bad file descriptor) [pid 5284] close(25) = -1 EBADF (Bad file descriptor) [pid 5284] close(26) = -1 EBADF (Bad file descriptor) [pid 5284] close(27) = -1 EBADF (Bad file descriptor) [pid 5284] close(28) = -1 EBADF (Bad file descriptor) [pid 5284] close(29) = -1 EBADF (Bad file descriptor) [pid 5284] exit_group(0) = ? [pid 5284] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=122, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./120/binderfs") = 0 [ 107.609092][ T5284] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./120/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./120/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./120/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./120") = 0 [pid 5039] mkdir("./121", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 123 ./strace-static-x86_64: Process 5286 attached [pid 5286] set_robust_list(0x555555e46660, 24) = 0 [pid 5286] chdir("./121") = 0 [pid 5286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5286] setpgid(0, 0) = 0 [pid 5286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5286] write(3, "1000", 4) = 4 [pid 5286] close(3) = 0 [pid 5286] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5286] memfd_create("syzkaller", 0) = 3 [pid 5286] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5286] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5286] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5286] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5286] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5286] close(3) = 0 [pid 5286] mkdir("./file0", 0777) = 0 [ 107.769573][ T5286] loop0: detected capacity change from 0 to 8192 [ 107.779991][ T5286] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 107.793349][ T5286] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 107.802654][ T5286] REISERFS (device loop0): using ordered data mode [ 107.809246][ T5286] reiserfs: using flush barriers [pid 5286] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5286] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5286] chdir("./file0") = 0 [pid 5286] ioctl(4, LOOP_CLR_FD) = 0 [pid 5286] close(4) = 0 [pid 5286] mkdir(".", 0777) = -1 EEXIST (File exists) [ 107.815709][ T5286] 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 [ 107.832287][ T5286] REISERFS (device loop0): checking transaction log (loop0) [ 107.840533][ T5286] REISERFS (device loop0): Using r5 hash to sort names [ 107.856547][ T5286] reiserfs: enabling write barrier flush mode [pid 5286] mount(NULL, ".", 0x200000c0, 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 5286] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5286] chdir(".") = 0 [pid 5286] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5286] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5286] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5286] close(3) = 0 [pid 5286] close(4) = 0 [pid 5286] close(5) = 0 [pid 5286] close(6) = -1 EBADF (Bad file descriptor) [pid 5286] close(7) = -1 EBADF (Bad file descriptor) [pid 5286] close(8) = -1 EBADF (Bad file descriptor) [pid 5286] close(9) = -1 EBADF (Bad file descriptor) [pid 5286] close(10) = -1 EBADF (Bad file descriptor) [pid 5286] close(11) = -1 EBADF (Bad file descriptor) [pid 5286] close(12) = -1 EBADF (Bad file descriptor) [pid 5286] close(13) = -1 EBADF (Bad file descriptor) [pid 5286] close(14) = -1 EBADF (Bad file descriptor) [pid 5286] close(15) = -1 EBADF (Bad file descriptor) [pid 5286] close(16) = -1 EBADF (Bad file descriptor) [pid 5286] close(17) = -1 EBADF (Bad file descriptor) [pid 5286] close(18) = -1 EBADF (Bad file descriptor) [pid 5286] close(19) = -1 EBADF (Bad file descriptor) [pid 5286] close(20) = -1 EBADF (Bad file descriptor) [pid 5286] close(21) = -1 EBADF (Bad file descriptor) [pid 5286] close(22) = -1 EBADF (Bad file descriptor) [pid 5286] close(23) = -1 EBADF (Bad file descriptor) [pid 5286] close(24) = -1 EBADF (Bad file descriptor) [pid 5286] close(25) = -1 EBADF (Bad file descriptor) [pid 5286] close(26) = -1 EBADF (Bad file descriptor) [pid 5286] close(27) = -1 EBADF (Bad file descriptor) [pid 5286] close(28) = -1 EBADF (Bad file descriptor) [pid 5286] close(29) = -1 EBADF (Bad file descriptor) [pid 5286] exit_group(0) = ? [pid 5286] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=123, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./121/binderfs") = 0 [ 107.867953][ T5286] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./121/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./121/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./121/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./121") = 0 [pid 5039] mkdir("./122", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5289 attached , child_tidptr=0x555555e46650) = 124 [pid 5289] set_robust_list(0x555555e46660, 24) = 0 [pid 5289] chdir("./122") = 0 [pid 5289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5289] setpgid(0, 0) = 0 [pid 5289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5289] write(3, "1000", 4) = 4 [pid 5289] close(3) = 0 [pid 5289] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5289] memfd_create("syzkaller", 0) = 3 [pid 5289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5289] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5289] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5289] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5289] close(3) = 0 [pid 5289] mkdir("./file0", 0777) = 0 [ 108.056699][ T5289] loop0: detected capacity change from 0 to 8192 [ 108.067476][ T5289] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.080633][ T5289] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 108.090008][ T5289] REISERFS (device loop0): using ordered data mode [ 108.096599][ T5289] reiserfs: using flush barriers [pid 5289] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5289] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5289] chdir("./file0") = 0 [pid 5289] ioctl(4, LOOP_CLR_FD) = 0 [pid 5289] close(4) = 0 [ 108.102997][ T5289] 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 [ 108.119607][ T5289] REISERFS (device loop0): checking transaction log (loop0) [ 108.128163][ T5289] REISERFS (device loop0): Using r5 hash to sort names [pid 5289] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5289] mount(NULL, ".", 0x200000c0, 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 5289] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5289] chdir(".") = 0 [pid 5289] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5289] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5289] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5289] close(3) = 0 [pid 5289] close(4) = 0 [pid 5289] close(5) = 0 [pid 5289] close(6) = -1 EBADF (Bad file descriptor) [pid 5289] close(7) = -1 EBADF (Bad file descriptor) [pid 5289] close(8) = -1 EBADF (Bad file descriptor) [pid 5289] close(9) = -1 EBADF (Bad file descriptor) [pid 5289] close(10) = -1 EBADF (Bad file descriptor) [pid 5289] close(11) = -1 EBADF (Bad file descriptor) [pid 5289] close(12) = -1 EBADF (Bad file descriptor) [pid 5289] close(13) = -1 EBADF (Bad file descriptor) [pid 5289] close(14) = -1 EBADF (Bad file descriptor) [pid 5289] close(15) = -1 EBADF (Bad file descriptor) [pid 5289] close(16) = -1 EBADF (Bad file descriptor) [pid 5289] close(17) = -1 EBADF (Bad file descriptor) [pid 5289] close(18) = -1 EBADF (Bad file descriptor) [pid 5289] close(19) = -1 EBADF (Bad file descriptor) [pid 5289] close(20) = -1 EBADF (Bad file descriptor) [pid 5289] close(21) = -1 EBADF (Bad file descriptor) [pid 5289] close(22) = -1 EBADF (Bad file descriptor) [pid 5289] close(23) = -1 EBADF (Bad file descriptor) [pid 5289] close(24) = -1 EBADF (Bad file descriptor) [pid 5289] close(25) = -1 EBADF (Bad file descriptor) [pid 5289] close(26) = -1 EBADF (Bad file descriptor) [pid 5289] close(27) = -1 EBADF (Bad file descriptor) [pid 5289] close(28) = -1 EBADF (Bad file descriptor) [pid 5289] close(29) = -1 EBADF (Bad file descriptor) [pid 5289] exit_group(0) = ? [pid 5289] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=124, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./122/binderfs") = 0 [ 108.152644][ T5289] reiserfs: enabling write barrier flush mode [ 108.165199][ T5289] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./122/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./122/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./122/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./122") = 0 [pid 5039] mkdir("./123", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5292 attached , child_tidptr=0x555555e46650) = 125 [pid 5292] set_robust_list(0x555555e46660, 24) = 0 [pid 5292] chdir("./123") = 0 [pid 5292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5292] setpgid(0, 0) = 0 [pid 5292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5292] write(3, "1000", 4) = 4 [pid 5292] close(3) = 0 [pid 5292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5292] memfd_create("syzkaller", 0) = 3 [pid 5292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5292] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5292] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5292] close(3) = 0 [pid 5292] mkdir("./file0", 0777) = 0 [ 108.324981][ T5292] loop0: detected capacity change from 0 to 8192 [ 108.335457][ T5292] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.348560][ T5292] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 108.358161][ T5292] REISERFS (device loop0): using ordered data mode [ 108.364689][ T5292] reiserfs: using flush barriers [pid 5292] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5292] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5292] chdir("./file0") = 0 [pid 5292] ioctl(4, LOOP_CLR_FD) = 0 [pid 5292] close(4) = 0 [pid 5292] mkdir(".", 0777) = -1 EEXIST (File exists) [ 108.371334][ T5292] 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 [ 108.387938][ T5292] REISERFS (device loop0): checking transaction log (loop0) [ 108.396508][ T5292] REISERFS (device loop0): Using r5 hash to sort names [ 108.409322][ T5292] reiserfs: enabling write barrier flush mode [pid 5292] mount(NULL, ".", 0x200000c0, 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 5292] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5292] chdir(".") = 0 [pid 5292] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5292] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5292] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5292] close(3) = 0 [pid 5292] close(4) = 0 [pid 5292] close(5) = 0 [pid 5292] close(6) = -1 EBADF (Bad file descriptor) [pid 5292] close(7) = -1 EBADF (Bad file descriptor) [pid 5292] close(8) = -1 EBADF (Bad file descriptor) [pid 5292] close(9) = -1 EBADF (Bad file descriptor) [pid 5292] close(10) = -1 EBADF (Bad file descriptor) [pid 5292] close(11) = -1 EBADF (Bad file descriptor) [pid 5292] close(12) = -1 EBADF (Bad file descriptor) [pid 5292] close(13) = -1 EBADF (Bad file descriptor) [pid 5292] close(14) = -1 EBADF (Bad file descriptor) [pid 5292] close(15) = -1 EBADF (Bad file descriptor) [pid 5292] close(16) = -1 EBADF (Bad file descriptor) [pid 5292] close(17) = -1 EBADF (Bad file descriptor) [pid 5292] close(18) = -1 EBADF (Bad file descriptor) [pid 5292] close(19) = -1 EBADF (Bad file descriptor) [pid 5292] close(20) = -1 EBADF (Bad file descriptor) [pid 5292] close(21) = -1 EBADF (Bad file descriptor) [pid 5292] close(22) = -1 EBADF (Bad file descriptor) [pid 5292] close(23) = -1 EBADF (Bad file descriptor) [pid 5292] close(24) = -1 EBADF (Bad file descriptor) [pid 5292] close(25) = -1 EBADF (Bad file descriptor) [pid 5292] close(26) = -1 EBADF (Bad file descriptor) [pid 5292] close(27) = -1 EBADF (Bad file descriptor) [pid 5292] close(28) = -1 EBADF (Bad file descriptor) [pid 5292] close(29) = -1 EBADF (Bad file descriptor) [pid 5292] exit_group(0) = ? [pid 5292] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=125, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [ 108.418720][ T5292] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./123/binderfs") = 0 [pid 5039] umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./123/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./123/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./123/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./123") = 0 [pid 5039] mkdir("./124", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5295 attached , child_tidptr=0x555555e46650) = 126 [pid 5295] set_robust_list(0x555555e46660, 24) = 0 [pid 5295] chdir("./124") = 0 [pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5295] setpgid(0, 0) = 0 [pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5295] write(3, "1000", 4) = 4 [pid 5295] close(3) = 0 [pid 5295] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5295] memfd_create("syzkaller", 0) = 3 [pid 5295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5295] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5295] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5295] close(3) = 0 [pid 5295] mkdir("./file0", 0777) = 0 [ 108.599469][ T5295] loop0: detected capacity change from 0 to 8192 [ 108.609353][ T5295] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.622620][ T5295] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 108.632286][ T5295] REISERFS (device loop0): using ordered data mode [ 108.638934][ T5295] reiserfs: using flush barriers [pid 5295] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5295] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5295] chdir("./file0") = 0 [pid 5295] ioctl(4, LOOP_CLR_FD) = 0 [pid 5295] close(4) = 0 [pid 5295] mkdir(".", 0777) = -1 EEXIST (File exists) [ 108.645240][ T5295] 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 [ 108.661856][ T5295] REISERFS (device loop0): checking transaction log (loop0) [ 108.670210][ T5295] REISERFS (device loop0): Using r5 hash to sort names [ 108.686736][ T5295] reiserfs: enabling write barrier flush mode [pid 5295] mount(NULL, ".", 0x200000c0, 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 5295] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5295] chdir(".") = 0 [pid 5295] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5295] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5295] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5295] close(3) = 0 [pid 5295] close(4) = 0 [pid 5295] close(5) = 0 [pid 5295] close(6) = -1 EBADF (Bad file descriptor) [pid 5295] close(7) = -1 EBADF (Bad file descriptor) [pid 5295] close(8) = -1 EBADF (Bad file descriptor) [pid 5295] close(9) = -1 EBADF (Bad file descriptor) [pid 5295] close(10) = -1 EBADF (Bad file descriptor) [pid 5295] close(11) = -1 EBADF (Bad file descriptor) [pid 5295] close(12) = -1 EBADF (Bad file descriptor) [pid 5295] close(13) = -1 EBADF (Bad file descriptor) [pid 5295] close(14) = -1 EBADF (Bad file descriptor) [pid 5295] close(15) = -1 EBADF (Bad file descriptor) [pid 5295] close(16) = -1 EBADF (Bad file descriptor) [pid 5295] close(17) = -1 EBADF (Bad file descriptor) [pid 5295] close(18) = -1 EBADF (Bad file descriptor) [pid 5295] close(19) = -1 EBADF (Bad file descriptor) [pid 5295] close(20) = -1 EBADF (Bad file descriptor) [pid 5295] close(21) = -1 EBADF (Bad file descriptor) [pid 5295] close(22) = -1 EBADF (Bad file descriptor) [pid 5295] close(23) = -1 EBADF (Bad file descriptor) [pid 5295] close(24) = -1 EBADF (Bad file descriptor) [pid 5295] close(25) = -1 EBADF (Bad file descriptor) [pid 5295] close(26) = -1 EBADF (Bad file descriptor) [pid 5295] close(27) = -1 EBADF (Bad file descriptor) [pid 5295] close(28) = -1 EBADF (Bad file descriptor) [pid 5295] close(29) = -1 EBADF (Bad file descriptor) [pid 5295] exit_group(0) = ? [pid 5295] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=126, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./124/binderfs") = 0 [ 108.699039][ T5295] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./124/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./124/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./124/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./124") = 0 [pid 5039] mkdir("./125", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 127 ./strace-static-x86_64: Process 5297 attached [pid 5297] set_robust_list(0x555555e46660, 24) = 0 [pid 5297] chdir("./125") = 0 [pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5297] setpgid(0, 0) = 0 [pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5297] write(3, "1000", 4) = 4 [pid 5297] close(3) = 0 [pid 5297] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5297] memfd_create("syzkaller", 0) = 3 [pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5297] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5297] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5297] close(3) = 0 [pid 5297] mkdir("./file0", 0777) = 0 [ 108.872122][ T5297] loop0: detected capacity change from 0 to 8192 [ 108.883027][ T5297] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 108.896128][ T5297] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 108.905412][ T5297] REISERFS (device loop0): using ordered data mode [ 108.911925][ T5297] reiserfs: using flush barriers [pid 5297] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5297] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5297] chdir("./file0") = 0 [pid 5297] ioctl(4, LOOP_CLR_FD) = 0 [pid 5297] close(4) = 0 [pid 5297] mkdir(".", 0777) = -1 EEXIST (File exists) [ 108.918578][ T5297] 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 [ 108.936691][ T5297] REISERFS (device loop0): checking transaction log (loop0) [ 108.945417][ T5297] REISERFS (device loop0): Using r5 hash to sort names [ 108.957213][ T5297] reiserfs: enabling write barrier flush mode [pid 5297] mount(NULL, ".", 0x200000c0, 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 5297] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5297] chdir(".") = 0 [pid 5297] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5297] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5297] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5297] close(3) = 0 [pid 5297] close(4) = 0 [pid 5297] close(5) = 0 [pid 5297] close(6) = -1 EBADF (Bad file descriptor) [pid 5297] close(7) = -1 EBADF (Bad file descriptor) [pid 5297] close(8) = -1 EBADF (Bad file descriptor) [pid 5297] close(9) = -1 EBADF (Bad file descriptor) [pid 5297] close(10) = -1 EBADF (Bad file descriptor) [pid 5297] close(11) = -1 EBADF (Bad file descriptor) [pid 5297] close(12) = -1 EBADF (Bad file descriptor) [pid 5297] close(13) = -1 EBADF (Bad file descriptor) [pid 5297] close(14) = -1 EBADF (Bad file descriptor) [pid 5297] close(15) = -1 EBADF (Bad file descriptor) [pid 5297] close(16) = -1 EBADF (Bad file descriptor) [pid 5297] close(17) = -1 EBADF (Bad file descriptor) [pid 5297] close(18) = -1 EBADF (Bad file descriptor) [pid 5297] close(19) = -1 EBADF (Bad file descriptor) [pid 5297] close(20) = -1 EBADF (Bad file descriptor) [pid 5297] close(21) = -1 EBADF (Bad file descriptor) [pid 5297] close(22) = -1 EBADF (Bad file descriptor) [pid 5297] close(23) = -1 EBADF (Bad file descriptor) [pid 5297] close(24) = -1 EBADF (Bad file descriptor) [pid 5297] close(25) = -1 EBADF (Bad file descriptor) [pid 5297] close(26) = -1 EBADF (Bad file descriptor) [pid 5297] close(27) = -1 EBADF (Bad file descriptor) [pid 5297] close(28) = -1 EBADF (Bad file descriptor) [pid 5297] close(29) = -1 EBADF (Bad file descriptor) [pid 5297] exit_group(0) = ? [pid 5297] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=127, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 108.967065][ T5297] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] unlink("./125/binderfs") = 0 [pid 5039] umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./125/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./125/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./125/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./125") = 0 [pid 5039] mkdir("./126", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5299 attached , child_tidptr=0x555555e46650) = 128 [pid 5299] set_robust_list(0x555555e46660, 24) = 0 [pid 5299] chdir("./126") = 0 [pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5299] setpgid(0, 0) = 0 [pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5299] write(3, "1000", 4) = 4 [pid 5299] close(3) = 0 [pid 5299] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5299] memfd_create("syzkaller", 0) = 3 [pid 5299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5299] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5299] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5299] close(3) = 0 [pid 5299] mkdir("./file0", 0777) = 0 [ 109.142730][ T5299] loop0: detected capacity change from 0 to 8192 [ 109.155123][ T5299] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.168266][ T5299] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 109.177635][ T5299] REISERFS (device loop0): using ordered data mode [ 109.184169][ T5299] reiserfs: using flush barriers [pid 5299] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5299] chdir("./file0") = 0 [pid 5299] ioctl(4, LOOP_CLR_FD) = 0 [pid 5299] close(4) = 0 [pid 5299] mkdir(".", 0777) = -1 EEXIST (File exists) [ 109.190754][ T5299] 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 [ 109.208067][ T5299] REISERFS (device loop0): checking transaction log (loop0) [ 109.216997][ T5299] REISERFS (device loop0): Using r5 hash to sort names [ 109.229431][ T5299] reiserfs: enabling write barrier flush mode [pid 5299] mount(NULL, ".", 0x200000c0, 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 5299] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5299] chdir(".") = 0 [pid 5299] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5299] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5299] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5299] close(3) = 0 [pid 5299] close(4) = 0 [pid 5299] close(5) = 0 [pid 5299] close(6) = -1 EBADF (Bad file descriptor) [pid 5299] close(7) = -1 EBADF (Bad file descriptor) [pid 5299] close(8) = -1 EBADF (Bad file descriptor) [pid 5299] close(9) = -1 EBADF (Bad file descriptor) [pid 5299] close(10) = -1 EBADF (Bad file descriptor) [pid 5299] close(11) = -1 EBADF (Bad file descriptor) [pid 5299] close(12) = -1 EBADF (Bad file descriptor) [pid 5299] close(13) = -1 EBADF (Bad file descriptor) [pid 5299] close(14) = -1 EBADF (Bad file descriptor) [pid 5299] close(15) = -1 EBADF (Bad file descriptor) [pid 5299] close(16) = -1 EBADF (Bad file descriptor) [pid 5299] close(17) = -1 EBADF (Bad file descriptor) [pid 5299] close(18) = -1 EBADF (Bad file descriptor) [pid 5299] close(19) = -1 EBADF (Bad file descriptor) [pid 5299] close(20) = -1 EBADF (Bad file descriptor) [pid 5299] close(21) = -1 EBADF (Bad file descriptor) [pid 5299] close(22) = -1 EBADF (Bad file descriptor) [pid 5299] close(23) = -1 EBADF (Bad file descriptor) [pid 5299] close(24) = -1 EBADF (Bad file descriptor) [pid 5299] close(25) = -1 EBADF (Bad file descriptor) [pid 5299] close(26) = -1 EBADF (Bad file descriptor) [pid 5299] close(27) = -1 EBADF (Bad file descriptor) [pid 5299] close(28) = -1 EBADF (Bad file descriptor) [pid 5299] close(29) = -1 EBADF (Bad file descriptor) [pid 5299] exit_group(0) = ? [pid 5299] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=128, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./126/binderfs") = 0 [pid 5039] umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./126/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 109.239487][ T5299] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] openat(AT_FDCWD, "./126/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./126/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./126") = 0 [pid 5039] mkdir("./127", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5302 attached , child_tidptr=0x555555e46650) = 129 [pid 5302] set_robust_list(0x555555e46660, 24) = 0 [pid 5302] chdir("./127") = 0 [pid 5302] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5302] setpgid(0, 0) = 0 [pid 5302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5302] write(3, "1000", 4) = 4 [pid 5302] close(3) = 0 [pid 5302] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5302] memfd_create("syzkaller", 0) = 3 [pid 5302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5302] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5302] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5302] close(3) = 0 [pid 5302] mkdir("./file0", 0777) = 0 [ 109.405431][ T5302] loop0: detected capacity change from 0 to 8192 [ 109.416167][ T5302] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.429285][ T5302] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 109.438550][ T5302] REISERFS (device loop0): using ordered data mode [ 109.445086][ T5302] reiserfs: using flush barriers [pid 5302] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5302] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5302] chdir("./file0") = 0 [pid 5302] ioctl(4, LOOP_CLR_FD) = 0 [pid 5302] close(4) = 0 [pid 5302] mkdir(".", 0777) = -1 EEXIST (File exists) [ 109.451545][ T5302] 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 [ 109.468317][ T5302] REISERFS (device loop0): checking transaction log (loop0) [ 109.476683][ T5302] REISERFS (device loop0): Using r5 hash to sort names [ 109.499047][ T5302] reiserfs: enabling write barrier flush mode [pid 5302] mount(NULL, ".", 0x200000c0, 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 5302] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5302] chdir(".") = 0 [pid 5302] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5302] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5302] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5302] close(3) = 0 [pid 5302] close(4) = 0 [pid 5302] close(5) = 0 [pid 5302] close(6) = -1 EBADF (Bad file descriptor) [pid 5302] close(7) = -1 EBADF (Bad file descriptor) [pid 5302] close(8) = -1 EBADF (Bad file descriptor) [pid 5302] close(9) = -1 EBADF (Bad file descriptor) [pid 5302] close(10) = -1 EBADF (Bad file descriptor) [pid 5302] close(11) = -1 EBADF (Bad file descriptor) [pid 5302] close(12) = -1 EBADF (Bad file descriptor) [pid 5302] close(13) = -1 EBADF (Bad file descriptor) [pid 5302] close(14) = -1 EBADF (Bad file descriptor) [pid 5302] close(15) = -1 EBADF (Bad file descriptor) [pid 5302] close(16) = -1 EBADF (Bad file descriptor) [pid 5302] close(17) = -1 EBADF (Bad file descriptor) [pid 5302] close(18) = -1 EBADF (Bad file descriptor) [pid 5302] close(19) = -1 EBADF (Bad file descriptor) [pid 5302] close(20) = -1 EBADF (Bad file descriptor) [pid 5302] close(21) = -1 EBADF (Bad file descriptor) [pid 5302] close(22) = -1 EBADF (Bad file descriptor) [pid 5302] close(23) = -1 EBADF (Bad file descriptor) [pid 5302] close(24) = -1 EBADF (Bad file descriptor) [pid 5302] close(25) = -1 EBADF (Bad file descriptor) [pid 5302] close(26) = -1 EBADF (Bad file descriptor) [pid 5302] close(27) = -1 EBADF (Bad file descriptor) [pid 5302] close(28) = -1 EBADF (Bad file descriptor) [pid 5302] close(29) = -1 EBADF (Bad file descriptor) [pid 5302] exit_group(0) = ? [pid 5302] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=129, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./127/binderfs") = 0 [ 109.509282][ T5302] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./127/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./127/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./127/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./127") = 0 [pid 5039] mkdir("./128", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5305 attached , child_tidptr=0x555555e46650) = 130 [pid 5305] set_robust_list(0x555555e46660, 24) = 0 [pid 5305] chdir("./128") = 0 [pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5305] setpgid(0, 0) = 0 [pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5305] write(3, "1000", 4) = 4 [pid 5305] close(3) = 0 [pid 5305] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5305] memfd_create("syzkaller", 0) = 3 [pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5305] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5305] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5305] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5305] close(3) = 0 [pid 5305] mkdir("./file0", 0777) = 0 [ 109.679302][ T5305] loop0: detected capacity change from 0 to 8192 [ 109.689782][ T5305] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.702984][ T5305] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 109.712369][ T5305] REISERFS (device loop0): using ordered data mode [ 109.718933][ T5305] reiserfs: using flush barriers [pid 5305] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5305] chdir("./file0") = 0 [pid 5305] ioctl(4, LOOP_CLR_FD) = 0 [pid 5305] close(4) = 0 [pid 5305] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5305] mount(NULL, ".", 0x200000c0, 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 5305] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5305] chdir(".") = 0 [pid 5305] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5305] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5305] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5305] close(3) = 0 [pid 5305] close(4) = 0 [pid 5305] close(5) = 0 [pid 5305] close(6) = -1 EBADF (Bad file descriptor) [pid 5305] close(7) = -1 EBADF (Bad file descriptor) [pid 5305] close(8) = -1 EBADF (Bad file descriptor) [pid 5305] close(9) = -1 EBADF (Bad file descriptor) [pid 5305] close(10) = -1 EBADF (Bad file descriptor) [pid 5305] close(11) = -1 EBADF (Bad file descriptor) [pid 5305] close(12) = -1 EBADF (Bad file descriptor) [pid 5305] close(13) = -1 EBADF (Bad file descriptor) [pid 5305] close(14) = -1 EBADF (Bad file descriptor) [pid 5305] close(15) = -1 EBADF (Bad file descriptor) [pid 5305] close(16) = -1 EBADF (Bad file descriptor) [pid 5305] close(17) = -1 EBADF (Bad file descriptor) [pid 5305] close(18) = -1 EBADF (Bad file descriptor) [pid 5305] close(19) = -1 EBADF (Bad file descriptor) [pid 5305] close(20) = -1 EBADF (Bad file descriptor) [pid 5305] close(21) = -1 EBADF (Bad file descriptor) [pid 5305] close(22) = -1 EBADF (Bad file descriptor) [pid 5305] close(23) = -1 EBADF (Bad file descriptor) [pid 5305] close(24) = -1 EBADF (Bad file descriptor) [pid 5305] close(25) = -1 EBADF (Bad file descriptor) [ 109.725394][ T5305] 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 [ 109.742132][ T5305] REISERFS (device loop0): checking transaction log (loop0) [ 109.750534][ T5305] REISERFS (device loop0): Using r5 hash to sort names [ 109.760335][ T5305] reiserfs: enabling write barrier flush mode [ 109.770703][ T5305] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5305] close(26) = -1 EBADF (Bad file descriptor) [pid 5305] close(27) = -1 EBADF (Bad file descriptor) [pid 5305] close(28) = -1 EBADF (Bad file descriptor) [pid 5305] close(29) = -1 EBADF (Bad file descriptor) [pid 5305] exit_group(0) = ? [pid 5305] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=130, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./128", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./128/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./128/binderfs") = 0 [pid 5039] umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./128/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./128/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./128/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./128") = 0 [pid 5039] mkdir("./129", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 131 ./strace-static-x86_64: Process 5307 attached [pid 5307] set_robust_list(0x555555e46660, 24) = 0 [pid 5307] chdir("./129") = 0 [pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5307] setpgid(0, 0) = 0 [pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5307] write(3, "1000", 4) = 4 [pid 5307] close(3) = 0 [pid 5307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5307] memfd_create("syzkaller", 0) = 3 [pid 5307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5307] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5307] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5307] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5307] close(3) = 0 [pid 5307] mkdir("./file0", 0777) = 0 [ 109.942414][ T5307] loop0: detected capacity change from 0 to 8192 [ 109.953237][ T5307] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 109.966870][ T5307] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 109.976393][ T5307] REISERFS (device loop0): using ordered data mode [ 109.982924][ T5307] reiserfs: using flush barriers [pid 5307] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5307] chdir("./file0") = 0 [pid 5307] ioctl(4, LOOP_CLR_FD) = 0 [pid 5307] close(4) = 0 [pid 5307] mkdir(".", 0777) = -1 EEXIST (File exists) [ 109.989903][ T5307] 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 [ 110.006803][ T5307] REISERFS (device loop0): checking transaction log (loop0) [ 110.014922][ T5307] REISERFS (device loop0): Using r5 hash to sort names [ 110.027603][ T5307] reiserfs: enabling write barrier flush mode [pid 5307] mount(NULL, ".", 0x200000c0, 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 5307] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5307] chdir(".") = 0 [pid 5307] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5307] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5307] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5307] close(3) = 0 [pid 5307] close(4) = 0 [pid 5307] close(5) = 0 [pid 5307] close(6) = -1 EBADF (Bad file descriptor) [pid 5307] close(7) = -1 EBADF (Bad file descriptor) [pid 5307] close(8) = -1 EBADF (Bad file descriptor) [pid 5307] close(9) = -1 EBADF (Bad file descriptor) [pid 5307] close(10) = -1 EBADF (Bad file descriptor) [pid 5307] close(11) = -1 EBADF (Bad file descriptor) [pid 5307] close(12) = -1 EBADF (Bad file descriptor) [pid 5307] close(13) = -1 EBADF (Bad file descriptor) [pid 5307] close(14) = -1 EBADF (Bad file descriptor) [pid 5307] close(15) = -1 EBADF (Bad file descriptor) [pid 5307] close(16) = -1 EBADF (Bad file descriptor) [pid 5307] close(17) = -1 EBADF (Bad file descriptor) [pid 5307] close(18) = -1 EBADF (Bad file descriptor) [pid 5307] close(19) = -1 EBADF (Bad file descriptor) [pid 5307] close(20) = -1 EBADF (Bad file descriptor) [pid 5307] close(21) = -1 EBADF (Bad file descriptor) [pid 5307] close(22) = -1 EBADF (Bad file descriptor) [pid 5307] close(23) = -1 EBADF (Bad file descriptor) [pid 5307] close(24) = -1 EBADF (Bad file descriptor) [pid 5307] close(25) = -1 EBADF (Bad file descriptor) [pid 5307] close(26) = -1 EBADF (Bad file descriptor) [pid 5307] close(27) = -1 EBADF (Bad file descriptor) [pid 5307] close(28) = -1 EBADF (Bad file descriptor) [pid 5307] close(29) = -1 EBADF (Bad file descriptor) [pid 5307] exit_group(0) = ? [pid 5307] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=131, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./129", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 110.037796][ T5307] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./129/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./129/binderfs") = 0 [pid 5039] umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./129/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./129/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./129/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./129") = 0 [pid 5039] mkdir("./130", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 132 ./strace-static-x86_64: Process 5309 attached [pid 5309] set_robust_list(0x555555e46660, 24) = 0 [pid 5309] chdir("./130") = 0 [pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5309] setpgid(0, 0) = 0 [pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5309] write(3, "1000", 4) = 4 [pid 5309] close(3) = 0 [pid 5309] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5309] memfd_create("syzkaller", 0) = 3 [pid 5309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5309] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5309] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5309] close(3) = 0 [pid 5309] mkdir("./file0", 0777) = 0 [ 110.230709][ T5309] loop0: detected capacity change from 0 to 8192 [ 110.242905][ T5309] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.256094][ T5309] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 110.265484][ T5309] REISERFS (device loop0): using ordered data mode [ 110.272097][ T5309] reiserfs: using flush barriers [pid 5309] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5309] chdir("./file0") = 0 [pid 5309] ioctl(4, LOOP_CLR_FD) = 0 [pid 5309] close(4) = 0 [pid 5309] mkdir(".", 0777) = -1 EEXIST (File exists) [ 110.278693][ T5309] 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 [ 110.295355][ T5309] REISERFS (device loop0): checking transaction log (loop0) [ 110.304117][ T5309] REISERFS (device loop0): Using r5 hash to sort names [ 110.317481][ T5309] reiserfs: enabling write barrier flush mode [pid 5309] mount(NULL, ".", 0x200000c0, 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 5309] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5309] chdir(".") = 0 [pid 5309] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5309] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5309] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5309] close(3) = 0 [pid 5309] close(4) = 0 [pid 5309] close(5) = 0 [pid 5309] close(6) = -1 EBADF (Bad file descriptor) [pid 5309] close(7) = -1 EBADF (Bad file descriptor) [pid 5309] close(8) = -1 EBADF (Bad file descriptor) [pid 5309] close(9) = -1 EBADF (Bad file descriptor) [pid 5309] close(10) = -1 EBADF (Bad file descriptor) [pid 5309] close(11) = -1 EBADF (Bad file descriptor) [pid 5309] close(12) = -1 EBADF (Bad file descriptor) [pid 5309] close(13) = -1 EBADF (Bad file descriptor) [pid 5309] close(14) = -1 EBADF (Bad file descriptor) [pid 5309] close(15) = -1 EBADF (Bad file descriptor) [pid 5309] close(16) = -1 EBADF (Bad file descriptor) [pid 5309] close(17) = -1 EBADF (Bad file descriptor) [pid 5309] close(18) = -1 EBADF (Bad file descriptor) [pid 5309] close(19) = -1 EBADF (Bad file descriptor) [pid 5309] close(20) = -1 EBADF (Bad file descriptor) [pid 5309] close(21) = -1 EBADF (Bad file descriptor) [pid 5309] close(22) = -1 EBADF (Bad file descriptor) [pid 5309] close(23) = -1 EBADF (Bad file descriptor) [pid 5309] close(24) = -1 EBADF (Bad file descriptor) [pid 5309] close(25) = -1 EBADF (Bad file descriptor) [pid 5309] close(26) = -1 EBADF (Bad file descriptor) [pid 5309] close(27) = -1 EBADF (Bad file descriptor) [pid 5309] close(28) = -1 EBADF (Bad file descriptor) [pid 5309] close(29) = -1 EBADF (Bad file descriptor) [pid 5309] exit_group(0) = ? [pid 5309] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=132, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./130", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./130/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./130/binderfs") = 0 [ 110.334787][ T5309] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./130/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./130/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./130/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./130") = 0 [pid 5039] mkdir("./131", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 133 ./strace-static-x86_64: Process 5311 attached [pid 5311] set_robust_list(0x555555e46660, 24) = 0 [pid 5311] chdir("./131") = 0 [pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5311] setpgid(0, 0) = 0 [pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5311] write(3, "1000", 4) = 4 [pid 5311] close(3) = 0 [pid 5311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5311] memfd_create("syzkaller", 0) = 3 [pid 5311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5311] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5311] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5311] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5311] close(3) = 0 [pid 5311] mkdir("./file0", 0777) = 0 [ 110.509501][ T5311] loop0: detected capacity change from 0 to 8192 [ 110.519529][ T5311] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.532568][ T5311] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 110.542045][ T5311] REISERFS (device loop0): using ordered data mode [ 110.548615][ T5311] reiserfs: using flush barriers [pid 5311] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5311] chdir("./file0") = 0 [pid 5311] ioctl(4, LOOP_CLR_FD) = 0 [pid 5311] close(4) = 0 [pid 5311] mkdir(".", 0777) = -1 EEXIST (File exists) [ 110.555031][ T5311] 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 [ 110.571505][ T5311] REISERFS (device loop0): checking transaction log (loop0) [ 110.580246][ T5311] REISERFS (device loop0): Using r5 hash to sort names [ 110.592167][ T5311] reiserfs: enabling write barrier flush mode [pid 5311] mount(NULL, ".", 0x200000c0, 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 5311] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5311] chdir(".") = 0 [pid 5311] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5311] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5311] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5311] close(3) = 0 [pid 5311] close(4) = 0 [pid 5311] close(5) = 0 [pid 5311] close(6) = -1 EBADF (Bad file descriptor) [pid 5311] close(7) = -1 EBADF (Bad file descriptor) [pid 5311] close(8) = -1 EBADF (Bad file descriptor) [pid 5311] close(9) = -1 EBADF (Bad file descriptor) [pid 5311] close(10) = -1 EBADF (Bad file descriptor) [pid 5311] close(11) = -1 EBADF (Bad file descriptor) [pid 5311] close(12) = -1 EBADF (Bad file descriptor) [pid 5311] close(13) = -1 EBADF (Bad file descriptor) [pid 5311] close(14) = -1 EBADF (Bad file descriptor) [pid 5311] close(15) = -1 EBADF (Bad file descriptor) [pid 5311] close(16) = -1 EBADF (Bad file descriptor) [pid 5311] close(17) = -1 EBADF (Bad file descriptor) [pid 5311] close(18) = -1 EBADF (Bad file descriptor) [pid 5311] close(19) = -1 EBADF (Bad file descriptor) [pid 5311] close(20) = -1 EBADF (Bad file descriptor) [pid 5311] close(21) = -1 EBADF (Bad file descriptor) [pid 5311] close(22) = -1 EBADF (Bad file descriptor) [pid 5311] close(23) = -1 EBADF (Bad file descriptor) [pid 5311] close(24) = -1 EBADF (Bad file descriptor) [pid 5311] close(25) = -1 EBADF (Bad file descriptor) [pid 5311] close(26) = -1 EBADF (Bad file descriptor) [pid 5311] close(27) = -1 EBADF (Bad file descriptor) [pid 5311] close(28) = -1 EBADF (Bad file descriptor) [pid 5311] close(29) = -1 EBADF (Bad file descriptor) [pid 5311] exit_group(0) = ? [pid 5311] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=133, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./131", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./131/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./131/binderfs") = 0 [ 110.602653][ T5311] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./131/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./131/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./131/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./131") = 0 [pid 5039] mkdir("./132", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 134 ./strace-static-x86_64: Process 5313 attached [pid 5313] set_robust_list(0x555555e46660, 24) = 0 [pid 5313] chdir("./132") = 0 [pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5313] setpgid(0, 0) = 0 [pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5313] write(3, "1000", 4) = 4 [pid 5313] close(3) = 0 [pid 5313] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5313] memfd_create("syzkaller", 0) = 3 [pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5313] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5313] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5313] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5313] close(3) = 0 [pid 5313] mkdir("./file0", 0777) = 0 [ 110.753041][ T5313] loop0: detected capacity change from 0 to 8192 [ 110.763617][ T5313] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 110.776762][ T5313] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 110.786388][ T5313] REISERFS (device loop0): using ordered data mode [ 110.792932][ T5313] reiserfs: using flush barriers [pid 5313] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5313] chdir("./file0") = 0 [pid 5313] ioctl(4, LOOP_CLR_FD) = 0 [pid 5313] close(4) = 0 [pid 5313] mkdir(".", 0777) = -1 EEXIST (File exists) [ 110.799364][ T5313] 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 [ 110.816131][ T5313] REISERFS (device loop0): checking transaction log (loop0) [ 110.824483][ T5313] REISERFS (device loop0): Using r5 hash to sort names [ 110.835881][ T5313] reiserfs: enabling write barrier flush mode [pid 5313] mount(NULL, ".", 0x200000c0, 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 5313] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5313] chdir(".") = 0 [pid 5313] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5313] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5313] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5313] close(3) = 0 [pid 5313] close(4) = 0 [pid 5313] close(5) = 0 [pid 5313] close(6) = -1 EBADF (Bad file descriptor) [pid 5313] close(7) = -1 EBADF (Bad file descriptor) [pid 5313] close(8) = -1 EBADF (Bad file descriptor) [pid 5313] close(9) = -1 EBADF (Bad file descriptor) [pid 5313] close(10) = -1 EBADF (Bad file descriptor) [pid 5313] close(11) = -1 EBADF (Bad file descriptor) [pid 5313] close(12) = -1 EBADF (Bad file descriptor) [pid 5313] close(13) = -1 EBADF (Bad file descriptor) [pid 5313] close(14) = -1 EBADF (Bad file descriptor) [pid 5313] close(15) = -1 EBADF (Bad file descriptor) [pid 5313] close(16) = -1 EBADF (Bad file descriptor) [pid 5313] close(17) = -1 EBADF (Bad file descriptor) [pid 5313] close(18) = -1 EBADF (Bad file descriptor) [pid 5313] close(19) = -1 EBADF (Bad file descriptor) [pid 5313] close(20) = -1 EBADF (Bad file descriptor) [pid 5313] close(21) = -1 EBADF (Bad file descriptor) [pid 5313] close(22) = -1 EBADF (Bad file descriptor) [pid 5313] close(23) = -1 EBADF (Bad file descriptor) [pid 5313] close(24) = -1 EBADF (Bad file descriptor) [pid 5313] close(25) = -1 EBADF (Bad file descriptor) [pid 5313] close(26) = -1 EBADF (Bad file descriptor) [pid 5313] close(27) = -1 EBADF (Bad file descriptor) [pid 5313] close(28) = -1 EBADF (Bad file descriptor) [pid 5313] close(29) = -1 EBADF (Bad file descriptor) [pid 5313] exit_group(0) = ? [pid 5313] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=134, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./132", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./132/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./132/binderfs") = 0 [ 110.846214][ T5313] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./132/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./132/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./132/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./132") = 0 [pid 5039] mkdir("./133", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5315 attached , child_tidptr=0x555555e46650) = 135 [pid 5315] set_robust_list(0x555555e46660, 24) = 0 [pid 5315] chdir("./133") = 0 [pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5315] setpgid(0, 0) = 0 [pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5315] write(3, "1000", 4) = 4 [pid 5315] close(3) = 0 [pid 5315] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5315] memfd_create("syzkaller", 0) = 3 [pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5315] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5315] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5315] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5315] close(3) = 0 [pid 5315] mkdir("./file0", 0777) = 0 [ 111.015698][ T5315] loop0: detected capacity change from 0 to 8192 [ 111.027689][ T5315] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.040860][ T5315] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 111.050184][ T5315] REISERFS (device loop0): using ordered data mode [ 111.056762][ T5315] reiserfs: using flush barriers [pid 5315] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5315] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5315] chdir("./file0") = 0 [pid 5315] ioctl(4, LOOP_CLR_FD) = 0 [pid 5315] close(4) = 0 [pid 5315] mkdir(".", 0777) = -1 EEXIST (File exists) [ 111.063157][ T5315] 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 [ 111.079857][ T5315] REISERFS (device loop0): checking transaction log (loop0) [ 111.088357][ T5315] REISERFS (device loop0): Using r5 hash to sort names [ 111.106255][ T5315] reiserfs: enabling write barrier flush mode [pid 5315] mount(NULL, ".", 0x200000c0, 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 5315] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5315] chdir(".") = 0 [pid 5315] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5315] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5315] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5315] close(3) = 0 [pid 5315] close(4) = 0 [pid 5315] close(5) = 0 [pid 5315] close(6) = -1 EBADF (Bad file descriptor) [pid 5315] close(7) = -1 EBADF (Bad file descriptor) [pid 5315] close(8) = -1 EBADF (Bad file descriptor) [pid 5315] close(9) = -1 EBADF (Bad file descriptor) [pid 5315] close(10) = -1 EBADF (Bad file descriptor) [pid 5315] close(11) = -1 EBADF (Bad file descriptor) [pid 5315] close(12) = -1 EBADF (Bad file descriptor) [pid 5315] close(13) = -1 EBADF (Bad file descriptor) [pid 5315] close(14) = -1 EBADF (Bad file descriptor) [pid 5315] close(15) = -1 EBADF (Bad file descriptor) [pid 5315] close(16) = -1 EBADF (Bad file descriptor) [pid 5315] close(17) = -1 EBADF (Bad file descriptor) [pid 5315] close(18) = -1 EBADF (Bad file descriptor) [pid 5315] close(19) = -1 EBADF (Bad file descriptor) [pid 5315] close(20) = -1 EBADF (Bad file descriptor) [pid 5315] close(21) = -1 EBADF (Bad file descriptor) [pid 5315] close(22) = -1 EBADF (Bad file descriptor) [pid 5315] close(23) = -1 EBADF (Bad file descriptor) [pid 5315] close(24) = -1 EBADF (Bad file descriptor) [pid 5315] close(25) = -1 EBADF (Bad file descriptor) [pid 5315] close(26) = -1 EBADF (Bad file descriptor) [pid 5315] close(27) = -1 EBADF (Bad file descriptor) [pid 5315] close(28) = -1 EBADF (Bad file descriptor) [pid 5315] close(29) = -1 EBADF (Bad file descriptor) [pid 5315] exit_group(0) = ? [pid 5315] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=135, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./133", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./133/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./133/binderfs") = 0 [ 111.123819][ T5315] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./133/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./133/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./133/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./133") = 0 [pid 5039] mkdir("./134", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 136 ./strace-static-x86_64: Process 5317 attached [pid 5317] set_robust_list(0x555555e46660, 24) = 0 [pid 5317] chdir("./134") = 0 [pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5317] setpgid(0, 0) = 0 [pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5317] write(3, "1000", 4) = 4 [pid 5317] close(3) = 0 [pid 5317] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5317] memfd_create("syzkaller", 0) = 3 [pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5317] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5317] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5317] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5317] close(3) = 0 [pid 5317] mkdir("./file0", 0777) = 0 [ 111.295969][ T5317] loop0: detected capacity change from 0 to 8192 [ 111.306196][ T5317] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.319324][ T5317] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 111.328746][ T5317] REISERFS (device loop0): using ordered data mode [ 111.335371][ T5317] reiserfs: using flush barriers [pid 5317] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5317] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5317] chdir("./file0") = 0 [pid 5317] ioctl(4, LOOP_CLR_FD) = 0 [pid 5317] close(4) = 0 [pid 5317] mkdir(".", 0777) = -1 EEXIST (File exists) [ 111.341921][ T5317] 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 [ 111.358578][ T5317] REISERFS (device loop0): checking transaction log (loop0) [ 111.366979][ T5317] REISERFS (device loop0): Using r5 hash to sort names [ 111.380343][ T5317] reiserfs: enabling write barrier flush mode [pid 5317] mount(NULL, ".", 0x200000c0, 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 5317] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5317] chdir(".") = 0 [pid 5317] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5317] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5317] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5317] close(3) = 0 [pid 5317] close(4) = 0 [pid 5317] close(5) = 0 [pid 5317] close(6) = -1 EBADF (Bad file descriptor) [pid 5317] close(7) = -1 EBADF (Bad file descriptor) [pid 5317] close(8) = -1 EBADF (Bad file descriptor) [pid 5317] close(9) = -1 EBADF (Bad file descriptor) [pid 5317] close(10) = -1 EBADF (Bad file descriptor) [pid 5317] close(11) = -1 EBADF (Bad file descriptor) [pid 5317] close(12) = -1 EBADF (Bad file descriptor) [pid 5317] close(13) = -1 EBADF (Bad file descriptor) [pid 5317] close(14) = -1 EBADF (Bad file descriptor) [pid 5317] close(15) = -1 EBADF (Bad file descriptor) [pid 5317] close(16) = -1 EBADF (Bad file descriptor) [pid 5317] close(17) = -1 EBADF (Bad file descriptor) [pid 5317] close(18) = -1 EBADF (Bad file descriptor) [pid 5317] close(19) = -1 EBADF (Bad file descriptor) [pid 5317] close(20) = -1 EBADF (Bad file descriptor) [pid 5317] close(21) = -1 EBADF (Bad file descriptor) [pid 5317] close(22) = -1 EBADF (Bad file descriptor) [pid 5317] close(23) = -1 EBADF (Bad file descriptor) [pid 5317] close(24) = -1 EBADF (Bad file descriptor) [pid 5317] close(25) = -1 EBADF (Bad file descriptor) [pid 5317] close(26) = -1 EBADF (Bad file descriptor) [pid 5317] close(27) = -1 EBADF (Bad file descriptor) [pid 5317] close(28) = -1 EBADF (Bad file descriptor) [pid 5317] close(29) = -1 EBADF (Bad file descriptor) [pid 5317] exit_group(0) = ? [pid 5317] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=136, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./134", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./134/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./134/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./134/binderfs") = 0 [ 111.393060][ T5317] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./134/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./134/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./134/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./134") = 0 [pid 5039] mkdir("./135", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 137 ./strace-static-x86_64: Process 5319 attached [pid 5319] set_robust_list(0x555555e46660, 24) = 0 [pid 5319] chdir("./135") = 0 [pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5319] setpgid(0, 0) = 0 [pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5319] write(3, "1000", 4) = 4 [pid 5319] close(3) = 0 [pid 5319] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5319] memfd_create("syzkaller", 0) = 3 [pid 5319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5319] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5319] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5319] close(3) = 0 [pid 5319] mkdir("./file0", 0777) = 0 [ 111.576346][ T5319] loop0: detected capacity change from 0 to 8192 [ 111.587400][ T5319] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.600501][ T5319] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 111.609788][ T5319] REISERFS (device loop0): using ordered data mode [ 111.616431][ T5319] reiserfs: using flush barriers [pid 5319] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5319] chdir("./file0") = 0 [pid 5319] ioctl(4, LOOP_CLR_FD) = 0 [pid 5319] close(4) = 0 [pid 5319] mkdir(".", 0777) = -1 EEXIST (File exists) [ 111.622903][ T5319] 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 [ 111.639572][ T5319] REISERFS (device loop0): checking transaction log (loop0) [ 111.648032][ T5319] REISERFS (device loop0): Using r5 hash to sort names [ 111.660328][ T5319] reiserfs: enabling write barrier flush mode [pid 5319] mount(NULL, ".", 0x200000c0, 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 5319] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5319] chdir(".") = 0 [pid 5319] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5319] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5319] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5319] close(3) = 0 [pid 5319] close(4) = 0 [pid 5319] close(5) = 0 [pid 5319] close(6) = -1 EBADF (Bad file descriptor) [pid 5319] close(7) = -1 EBADF (Bad file descriptor) [pid 5319] close(8) = -1 EBADF (Bad file descriptor) [pid 5319] close(9) = -1 EBADF (Bad file descriptor) [pid 5319] close(10) = -1 EBADF (Bad file descriptor) [pid 5319] close(11) = -1 EBADF (Bad file descriptor) [pid 5319] close(12) = -1 EBADF (Bad file descriptor) [pid 5319] close(13) = -1 EBADF (Bad file descriptor) [pid 5319] close(14) = -1 EBADF (Bad file descriptor) [pid 5319] close(15) = -1 EBADF (Bad file descriptor) [pid 5319] close(16) = -1 EBADF (Bad file descriptor) [pid 5319] close(17) = -1 EBADF (Bad file descriptor) [pid 5319] close(18) = -1 EBADF (Bad file descriptor) [pid 5319] close(19) = -1 EBADF (Bad file descriptor) [pid 5319] close(20) = -1 EBADF (Bad file descriptor) [pid 5319] close(21) = -1 EBADF (Bad file descriptor) [pid 5319] close(22) = -1 EBADF (Bad file descriptor) [pid 5319] close(23) = -1 EBADF (Bad file descriptor) [pid 5319] close(24) = -1 EBADF (Bad file descriptor) [pid 5319] close(25) = -1 EBADF (Bad file descriptor) [pid 5319] close(26) = -1 EBADF (Bad file descriptor) [pid 5319] close(27) = -1 EBADF (Bad file descriptor) [pid 5319] close(28) = -1 EBADF (Bad file descriptor) [pid 5319] close(29) = -1 EBADF (Bad file descriptor) [pid 5319] exit_group(0) = ? [pid 5319] +++ exited with 0 +++ [ 111.671364][ T5319] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=137, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./135", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./135/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./135/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./135/binderfs") = 0 [pid 5039] umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./135/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./135/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./135/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./135") = 0 [pid 5039] mkdir("./136", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5321 attached , child_tidptr=0x555555e46650) = 138 [pid 5321] set_robust_list(0x555555e46660, 24) = 0 [pid 5321] chdir("./136") = 0 [pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5321] setpgid(0, 0) = 0 [pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5321] write(3, "1000", 4) = 4 [pid 5321] close(3) = 0 [pid 5321] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5321] memfd_create("syzkaller", 0) = 3 [pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5321] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5321] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5321] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5321] close(3) = 0 [pid 5321] mkdir("./file0", 0777) = 0 [ 111.867581][ T5321] loop0: detected capacity change from 0 to 8192 [ 111.878370][ T5321] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 111.891399][ T5321] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 111.900668][ T5321] REISERFS (device loop0): using ordered data mode [ 111.907246][ T5321] reiserfs: using flush barriers [pid 5321] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5321] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5321] chdir("./file0") = 0 [pid 5321] ioctl(4, LOOP_CLR_FD) = 0 [pid 5321] close(4) = 0 [pid 5321] mkdir(".", 0777) = -1 EEXIST (File exists) [ 111.913868][ T5321] 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 [ 111.930352][ T5321] REISERFS (device loop0): checking transaction log (loop0) [ 111.938837][ T5321] REISERFS (device loop0): Using r5 hash to sort names [ 111.949541][ T5321] reiserfs: enabling write barrier flush mode [pid 5321] mount(NULL, ".", 0x200000c0, 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 5321] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5321] chdir(".") = 0 [pid 5321] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5321] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5321] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5321] close(3) = 0 [pid 5321] close(4) = 0 [pid 5321] close(5) = 0 [pid 5321] close(6) = -1 EBADF (Bad file descriptor) [pid 5321] close(7) = -1 EBADF (Bad file descriptor) [pid 5321] close(8) = -1 EBADF (Bad file descriptor) [pid 5321] close(9) = -1 EBADF (Bad file descriptor) [pid 5321] close(10) = -1 EBADF (Bad file descriptor) [pid 5321] close(11) = -1 EBADF (Bad file descriptor) [pid 5321] close(12) = -1 EBADF (Bad file descriptor) [pid 5321] close(13) = -1 EBADF (Bad file descriptor) [pid 5321] close(14) = -1 EBADF (Bad file descriptor) [pid 5321] close(15) = -1 EBADF (Bad file descriptor) [pid 5321] close(16) = -1 EBADF (Bad file descriptor) [pid 5321] close(17) = -1 EBADF (Bad file descriptor) [pid 5321] close(18) = -1 EBADF (Bad file descriptor) [pid 5321] close(19) = -1 EBADF (Bad file descriptor) [pid 5321] close(20) = -1 EBADF (Bad file descriptor) [pid 5321] close(21) = -1 EBADF (Bad file descriptor) [pid 5321] close(22) = -1 EBADF (Bad file descriptor) [pid 5321] close(23) = -1 EBADF (Bad file descriptor) [pid 5321] close(24) = -1 EBADF (Bad file descriptor) [pid 5321] close(25) = -1 EBADF (Bad file descriptor) [pid 5321] close(26) = -1 EBADF (Bad file descriptor) [pid 5321] close(27) = -1 EBADF (Bad file descriptor) [pid 5321] close(28) = -1 EBADF (Bad file descriptor) [pid 5321] close(29) = -1 EBADF (Bad file descriptor) [pid 5321] exit_group(0) = ? [pid 5321] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=138, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./136", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./136/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./136/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./136/binderfs") = 0 [ 111.959371][ T5321] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./136/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./136/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./136/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./136") = 0 [pid 5039] mkdir("./137", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5323 attached , child_tidptr=0x555555e46650) = 139 [pid 5323] set_robust_list(0x555555e46660, 24) = 0 [pid 5323] chdir("./137") = 0 [pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5323] setpgid(0, 0) = 0 [pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5323] write(3, "1000", 4) = 4 [pid 5323] close(3) = 0 [pid 5323] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5323] memfd_create("syzkaller", 0) = 3 [pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5323] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5323] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5323] close(3) = 0 [pid 5323] mkdir("./file0", 0777) = 0 [ 112.138336][ T5323] loop0: detected capacity change from 0 to 8192 [ 112.148914][ T5323] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 112.161914][ T5323] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 112.171550][ T5323] REISERFS (device loop0): using ordered data mode [ 112.178109][ T5323] reiserfs: using flush barriers [pid 5323] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5323] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5323] chdir("./file0") = 0 [pid 5323] ioctl(4, LOOP_CLR_FD) = 0 [pid 5323] close(4) = 0 [pid 5323] mkdir(".", 0777) = -1 EEXIST (File exists) [ 112.184406][ T5323] 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 [ 112.201050][ T5323] REISERFS (device loop0): checking transaction log (loop0) [ 112.209550][ T5323] REISERFS (device loop0): Using r5 hash to sort names [ 112.221280][ T5323] reiserfs: enabling write barrier flush mode [pid 5323] mount(NULL, ".", 0x200000c0, 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 5323] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5323] chdir(".") = 0 [pid 5323] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5323] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5323] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5323] close(3) = 0 [pid 5323] close(4) = 0 [pid 5323] close(5) = 0 [pid 5323] close(6) = -1 EBADF (Bad file descriptor) [pid 5323] close(7) = -1 EBADF (Bad file descriptor) [pid 5323] close(8) = -1 EBADF (Bad file descriptor) [pid 5323] close(9) = -1 EBADF (Bad file descriptor) [pid 5323] close(10) = -1 EBADF (Bad file descriptor) [pid 5323] close(11) = -1 EBADF (Bad file descriptor) [pid 5323] close(12) = -1 EBADF (Bad file descriptor) [pid 5323] close(13) = -1 EBADF (Bad file descriptor) [pid 5323] close(14) = -1 EBADF (Bad file descriptor) [pid 5323] close(15) = -1 EBADF (Bad file descriptor) [pid 5323] close(16) = -1 EBADF (Bad file descriptor) [pid 5323] close(17) = -1 EBADF (Bad file descriptor) [pid 5323] close(18) = -1 EBADF (Bad file descriptor) [pid 5323] close(19) = -1 EBADF (Bad file descriptor) [pid 5323] close(20) = -1 EBADF (Bad file descriptor) [pid 5323] close(21) = -1 EBADF (Bad file descriptor) [pid 5323] close(22) = -1 EBADF (Bad file descriptor) [pid 5323] close(23) = -1 EBADF (Bad file descriptor) [pid 5323] close(24) = -1 EBADF (Bad file descriptor) [pid 5323] close(25) = -1 EBADF (Bad file descriptor) [pid 5323] close(26) = -1 EBADF (Bad file descriptor) [pid 5323] close(27) = -1 EBADF (Bad file descriptor) [pid 5323] close(28) = -1 EBADF (Bad file descriptor) [pid 5323] close(29) = -1 EBADF (Bad file descriptor) [pid 5323] exit_group(0) = ? [pid 5323] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=139, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./137", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./137/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./137/binderfs") = 0 [ 112.231820][ T5323] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./137/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./137/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./137/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./137") = 0 [pid 5039] mkdir("./138", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5325 attached , child_tidptr=0x555555e46650) = 140 [pid 5325] set_robust_list(0x555555e46660, 24) = 0 [pid 5325] chdir("./138") = 0 [pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5325] setpgid(0, 0) = 0 [pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5325] write(3, "1000", 4) = 4 [pid 5325] close(3) = 0 [pid 5325] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5325] memfd_create("syzkaller", 0) = 3 [pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5325] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5325] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5325] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5325] close(3) = 0 [pid 5325] mkdir("./file0", 0777) = 0 [ 112.388472][ T5325] loop0: detected capacity change from 0 to 8192 [ 112.399175][ T5325] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 112.412488][ T5325] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 112.421869][ T5325] REISERFS (device loop0): using ordered data mode [ 112.428415][ T5325] reiserfs: using flush barriers [pid 5325] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5325] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5325] chdir("./file0") = 0 [pid 5325] ioctl(4, LOOP_CLR_FD) = 0 [pid 5325] close(4) = 0 [pid 5325] mkdir(".", 0777) = -1 EEXIST (File exists) [ 112.434660][ T5325] 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 [ 112.451411][ T5325] REISERFS (device loop0): checking transaction log (loop0) [ 112.459852][ T5325] REISERFS (device loop0): Using r5 hash to sort names [ 112.476730][ T5325] reiserfs: enabling write barrier flush mode [pid 5325] mount(NULL, ".", 0x200000c0, 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 5325] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5325] chdir(".") = 0 [pid 5325] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5325] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5325] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5325] close(3) = 0 [pid 5325] close(4) = 0 [pid 5325] close(5) = 0 [pid 5325] close(6) = -1 EBADF (Bad file descriptor) [pid 5325] close(7) = -1 EBADF (Bad file descriptor) [pid 5325] close(8) = -1 EBADF (Bad file descriptor) [pid 5325] close(9) = -1 EBADF (Bad file descriptor) [pid 5325] close(10) = -1 EBADF (Bad file descriptor) [pid 5325] close(11) = -1 EBADF (Bad file descriptor) [pid 5325] close(12) = -1 EBADF (Bad file descriptor) [pid 5325] close(13) = -1 EBADF (Bad file descriptor) [pid 5325] close(14) = -1 EBADF (Bad file descriptor) [pid 5325] close(15) = -1 EBADF (Bad file descriptor) [pid 5325] close(16) = -1 EBADF (Bad file descriptor) [pid 5325] close(17) = -1 EBADF (Bad file descriptor) [pid 5325] close(18) = -1 EBADF (Bad file descriptor) [pid 5325] close(19) = -1 EBADF (Bad file descriptor) [pid 5325] close(20) = -1 EBADF (Bad file descriptor) [pid 5325] close(21) = -1 EBADF (Bad file descriptor) [pid 5325] close(22) = -1 EBADF (Bad file descriptor) [pid 5325] close(23) = -1 EBADF (Bad file descriptor) [pid 5325] close(24) = -1 EBADF (Bad file descriptor) [pid 5325] close(25) = -1 EBADF (Bad file descriptor) [pid 5325] close(26) = -1 EBADF (Bad file descriptor) [pid 5325] close(27) = -1 EBADF (Bad file descriptor) [pid 5325] close(28) = -1 EBADF (Bad file descriptor) [pid 5325] close(29) = -1 EBADF (Bad file descriptor) [pid 5325] exit_group(0) = ? [pid 5325] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=140, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./138", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./138/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./138/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./138/binderfs") = 0 [ 112.498781][ T5325] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./138/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./138/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./138/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./138") = 0 [pid 5039] mkdir("./139", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 141 ./strace-static-x86_64: Process 5327 attached [pid 5327] set_robust_list(0x555555e46660, 24) = 0 [pid 5327] chdir("./139") = 0 [pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5327] setpgid(0, 0) = 0 [pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5327] write(3, "1000", 4) = 4 [pid 5327] close(3) = 0 [pid 5327] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5327] memfd_create("syzkaller", 0) = 3 [pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5327] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5327] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5327] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5327] close(3) = 0 [pid 5327] mkdir("./file0", 0777) = 0 [ 112.672530][ T5327] loop0: detected capacity change from 0 to 8192 [ 112.682781][ T5327] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 112.695978][ T5327] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 112.705403][ T5327] REISERFS (device loop0): using ordered data mode [ 112.711946][ T5327] reiserfs: using flush barriers [pid 5327] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5327] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5327] chdir("./file0") = 0 [pid 5327] ioctl(4, LOOP_CLR_FD) = 0 [pid 5327] close(4) = 0 [pid 5327] mkdir(".", 0777) = -1 EEXIST (File exists) [ 112.718581][ T5327] 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 [ 112.735320][ T5327] REISERFS (device loop0): checking transaction log (loop0) [ 112.743589][ T5327] REISERFS (device loop0): Using r5 hash to sort names [ 112.755120][ T5327] reiserfs: enabling write barrier flush mode [pid 5327] mount(NULL, ".", 0x200000c0, 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 5327] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5327] chdir(".") = 0 [pid 5327] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5327] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5327] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5327] close(3) = 0 [pid 5327] close(4) = 0 [pid 5327] close(5) = 0 [pid 5327] close(6) = -1 EBADF (Bad file descriptor) [pid 5327] close(7) = -1 EBADF (Bad file descriptor) [pid 5327] close(8) = -1 EBADF (Bad file descriptor) [pid 5327] close(9) = -1 EBADF (Bad file descriptor) [pid 5327] close(10) = -1 EBADF (Bad file descriptor) [pid 5327] close(11) = -1 EBADF (Bad file descriptor) [pid 5327] close(12) = -1 EBADF (Bad file descriptor) [pid 5327] close(13) = -1 EBADF (Bad file descriptor) [pid 5327] close(14) = -1 EBADF (Bad file descriptor) [pid 5327] close(15) = -1 EBADF (Bad file descriptor) [pid 5327] close(16) = -1 EBADF (Bad file descriptor) [pid 5327] close(17) = -1 EBADF (Bad file descriptor) [pid 5327] close(18) = -1 EBADF (Bad file descriptor) [pid 5327] close(19) = -1 EBADF (Bad file descriptor) [pid 5327] close(20) = -1 EBADF (Bad file descriptor) [pid 5327] close(21) = -1 EBADF (Bad file descriptor) [pid 5327] close(22) = -1 EBADF (Bad file descriptor) [pid 5327] close(23) = -1 EBADF (Bad file descriptor) [pid 5327] close(24) = -1 EBADF (Bad file descriptor) [pid 5327] close(25) = -1 EBADF (Bad file descriptor) [pid 5327] close(26) = -1 EBADF (Bad file descriptor) [pid 5327] close(27) = -1 EBADF (Bad file descriptor) [pid 5327] close(28) = -1 EBADF (Bad file descriptor) [pid 5327] close(29) = -1 EBADF (Bad file descriptor) [pid 5327] exit_group(0) = ? [pid 5327] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=141, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./139", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./139/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./139/binderfs") = 0 [ 112.764781][ T5327] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./139/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./139/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./139/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./139") = 0 [pid 5039] mkdir("./140", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5329 attached , child_tidptr=0x555555e46650) = 142 [pid 5329] set_robust_list(0x555555e46660, 24) = 0 [pid 5329] chdir("./140") = 0 [pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5329] setpgid(0, 0) = 0 [pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5329] write(3, "1000", 4) = 4 [pid 5329] close(3) = 0 [pid 5329] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5329] memfd_create("syzkaller", 0) = 3 [pid 5329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5329] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5329] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5329] close(3) = 0 [pid 5329] mkdir("./file0", 0777) = 0 [ 112.932828][ T5329] loop0: detected capacity change from 0 to 8192 [ 112.943589][ T5329] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 112.956679][ T5329] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 112.965980][ T5329] REISERFS (device loop0): using ordered data mode [ 112.972512][ T5329] reiserfs: using flush barriers [pid 5329] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5329] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5329] chdir("./file0") = 0 [pid 5329] ioctl(4, LOOP_CLR_FD) = 0 [pid 5329] close(4) = 0 [pid 5329] mkdir(".", 0777) = -1 EEXIST (File exists) [ 112.979067][ T5329] 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 [ 112.995633][ T5329] REISERFS (device loop0): checking transaction log (loop0) [ 113.003786][ T5329] REISERFS (device loop0): Using r5 hash to sort names [ 113.016988][ T5329] reiserfs: enabling write barrier flush mode [pid 5329] mount(NULL, ".", 0x200000c0, 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 5329] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5329] chdir(".") = 0 [pid 5329] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5329] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5329] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5329] close(3) = 0 [pid 5329] close(4) = 0 [pid 5329] close(5) = 0 [pid 5329] close(6) = -1 EBADF (Bad file descriptor) [pid 5329] close(7) = -1 EBADF (Bad file descriptor) [pid 5329] close(8) = -1 EBADF (Bad file descriptor) [pid 5329] close(9) = -1 EBADF (Bad file descriptor) [pid 5329] close(10) = -1 EBADF (Bad file descriptor) [pid 5329] close(11) = -1 EBADF (Bad file descriptor) [pid 5329] close(12) = -1 EBADF (Bad file descriptor) [pid 5329] close(13) = -1 EBADF (Bad file descriptor) [pid 5329] close(14) = -1 EBADF (Bad file descriptor) [pid 5329] close(15) = -1 EBADF (Bad file descriptor) [pid 5329] close(16) = -1 EBADF (Bad file descriptor) [pid 5329] close(17) = -1 EBADF (Bad file descriptor) [pid 5329] close(18) = -1 EBADF (Bad file descriptor) [pid 5329] close(19) = -1 EBADF (Bad file descriptor) [pid 5329] close(20) = -1 EBADF (Bad file descriptor) [pid 5329] close(21) = -1 EBADF (Bad file descriptor) [pid 5329] close(22) = -1 EBADF (Bad file descriptor) [pid 5329] close(23) = -1 EBADF (Bad file descriptor) [pid 5329] close(24) = -1 EBADF (Bad file descriptor) [pid 5329] close(25) = -1 EBADF (Bad file descriptor) [pid 5329] close(26) = -1 EBADF (Bad file descriptor) [pid 5329] close(27) = -1 EBADF (Bad file descriptor) [pid 5329] close(28) = -1 EBADF (Bad file descriptor) [pid 5329] close(29) = -1 EBADF (Bad file descriptor) [pid 5329] exit_group(0) = ? [pid 5329] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./140", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./140/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./140/binderfs") = 0 [ 113.030593][ T5329] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./140/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./140/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./140/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./140") = 0 [pid 5039] mkdir("./141", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5331 attached [pid 5331] set_robust_list(0x555555e46660, 24) = 0 [pid 5331] chdir("./141") = 0 [pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5331] setpgid(0, 0) = 0 [pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5331] write(3, "1000", 4) = 4 [pid 5331] close(3) = 0 [pid 5331] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 143 [pid 5331] memfd_create("syzkaller", 0) = 3 [pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5331] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5331] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5331] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5331] close(3) = 0 [pid 5331] mkdir("./file0", 0777) = 0 [ 113.201565][ T5331] loop0: detected capacity change from 0 to 8192 [ 113.211783][ T5331] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.224946][ T5331] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 113.234145][ T5331] REISERFS (device loop0): using ordered data mode [ 113.241066][ T5331] reiserfs: using flush barriers [pid 5331] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5331] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5331] chdir("./file0") = 0 [pid 5331] ioctl(4, LOOP_CLR_FD) = 0 [pid 5331] close(4) = 0 [pid 5331] mkdir(".", 0777) = -1 EEXIST (File exists) [ 113.247391][ T5331] 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 [ 113.263975][ T5331] REISERFS (device loop0): checking transaction log (loop0) [ 113.272392][ T5331] REISERFS (device loop0): Using r5 hash to sort names [ 113.283060][ T5331] reiserfs: enabling write barrier flush mode [pid 5331] mount(NULL, ".", 0x200000c0, 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 5331] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5331] chdir(".") = 0 [pid 5331] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5331] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5331] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5331] close(3) = 0 [pid 5331] close(4) = 0 [pid 5331] close(5) = 0 [pid 5331] close(6) = -1 EBADF (Bad file descriptor) [pid 5331] close(7) = -1 EBADF (Bad file descriptor) [pid 5331] close(8) = -1 EBADF (Bad file descriptor) [pid 5331] close(9) = -1 EBADF (Bad file descriptor) [pid 5331] close(10) = -1 EBADF (Bad file descriptor) [pid 5331] close(11) = -1 EBADF (Bad file descriptor) [pid 5331] close(12) = -1 EBADF (Bad file descriptor) [pid 5331] close(13) = -1 EBADF (Bad file descriptor) [pid 5331] close(14) = -1 EBADF (Bad file descriptor) [pid 5331] close(15) = -1 EBADF (Bad file descriptor) [pid 5331] close(16) = -1 EBADF (Bad file descriptor) [pid 5331] close(17) = -1 EBADF (Bad file descriptor) [pid 5331] close(18) = -1 EBADF (Bad file descriptor) [pid 5331] close(19) = -1 EBADF (Bad file descriptor) [pid 5331] close(20) = -1 EBADF (Bad file descriptor) [pid 5331] close(21) = -1 EBADF (Bad file descriptor) [pid 5331] close(22) = -1 EBADF (Bad file descriptor) [pid 5331] close(23) = -1 EBADF (Bad file descriptor) [pid 5331] close(24) = -1 EBADF (Bad file descriptor) [pid 5331] close(25) = -1 EBADF (Bad file descriptor) [pid 5331] close(26) = -1 EBADF (Bad file descriptor) [pid 5331] close(27) = -1 EBADF (Bad file descriptor) [pid 5331] close(28) = -1 EBADF (Bad file descriptor) [pid 5331] close(29) = -1 EBADF (Bad file descriptor) [pid 5331] exit_group(0) = ? [pid 5331] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=143, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./141", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./141/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./141/binderfs") = 0 [ 113.294824][ T5331] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./141/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./141/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./141/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./141") = 0 [pid 5039] mkdir("./142", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 144 ./strace-static-x86_64: Process 5333 attached [pid 5333] set_robust_list(0x555555e46660, 24) = 0 [pid 5333] chdir("./142") = 0 [pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5333] setpgid(0, 0) = 0 [pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5333] write(3, "1000", 4) = 4 [pid 5333] close(3) = 0 [pid 5333] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5333] memfd_create("syzkaller", 0) = 3 [pid 5333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5333] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5333] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5333] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5333] close(3) = 0 [pid 5333] mkdir("./file0", 0777) = 0 [ 113.475409][ T5333] loop0: detected capacity change from 0 to 8192 [ 113.485718][ T5333] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.498866][ T5333] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 113.508595][ T5333] REISERFS (device loop0): using ordered data mode [ 113.515183][ T5333] reiserfs: using flush barriers [pid 5333] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5333] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5333] chdir("./file0") = 0 [pid 5333] ioctl(4, LOOP_CLR_FD) = 0 [pid 5333] close(4) = 0 [pid 5333] mkdir(".", 0777) = -1 EEXIST (File exists) [ 113.521398][ T5333] 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 [ 113.538119][ T5333] REISERFS (device loop0): checking transaction log (loop0) [ 113.546715][ T5333] REISERFS (device loop0): Using r5 hash to sort names [ 113.558990][ T5333] reiserfs: enabling write barrier flush mode [pid 5333] mount(NULL, ".", 0x200000c0, 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 5333] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5333] chdir(".") = 0 [pid 5333] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5333] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5333] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5333] close(3) = 0 [pid 5333] close(4) = 0 [pid 5333] close(5) = 0 [pid 5333] close(6) = -1 EBADF (Bad file descriptor) [pid 5333] close(7) = -1 EBADF (Bad file descriptor) [pid 5333] close(8) = -1 EBADF (Bad file descriptor) [pid 5333] close(9) = -1 EBADF (Bad file descriptor) [pid 5333] close(10) = -1 EBADF (Bad file descriptor) [pid 5333] close(11) = -1 EBADF (Bad file descriptor) [pid 5333] close(12) = -1 EBADF (Bad file descriptor) [pid 5333] close(13) = -1 EBADF (Bad file descriptor) [pid 5333] close(14) = -1 EBADF (Bad file descriptor) [pid 5333] close(15) = -1 EBADF (Bad file descriptor) [pid 5333] close(16) = -1 EBADF (Bad file descriptor) [pid 5333] close(17) = -1 EBADF (Bad file descriptor) [pid 5333] close(18) = -1 EBADF (Bad file descriptor) [pid 5333] close(19) = -1 EBADF (Bad file descriptor) [pid 5333] close(20) = -1 EBADF (Bad file descriptor) [pid 5333] close(21) = -1 EBADF (Bad file descriptor) [pid 5333] close(22) = -1 EBADF (Bad file descriptor) [pid 5333] close(23) = -1 EBADF (Bad file descriptor) [pid 5333] close(24) = -1 EBADF (Bad file descriptor) [pid 5333] close(25) = -1 EBADF (Bad file descriptor) [pid 5333] close(26) = -1 EBADF (Bad file descriptor) [pid 5333] close(27) = -1 EBADF (Bad file descriptor) [pid 5333] close(28) = -1 EBADF (Bad file descriptor) [pid 5333] close(29) = -1 EBADF (Bad file descriptor) [pid 5333] exit_group(0) = ? [pid 5333] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=144, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./142", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./142/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./142/binderfs") = 0 [ 113.569949][ T5333] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./142/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./142/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./142/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./142") = 0 [pid 5039] mkdir("./143", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 145 ./strace-static-x86_64: Process 5335 attached [pid 5335] set_robust_list(0x555555e46660, 24) = 0 [pid 5335] chdir("./143") = 0 [pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5335] setpgid(0, 0) = 0 [pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5335] write(3, "1000", 4) = 4 [pid 5335] close(3) = 0 [pid 5335] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5335] memfd_create("syzkaller", 0) = 3 [pid 5335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5335] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5335] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5335] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5335] close(3) = 0 [pid 5335] mkdir("./file0", 0777) = 0 [ 113.725957][ T5335] loop0: detected capacity change from 0 to 8192 [ 113.737584][ T5335] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 113.751195][ T5335] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 113.760721][ T5335] REISERFS (device loop0): using ordered data mode [ 113.767321][ T5335] reiserfs: using flush barriers [pid 5335] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5335] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5335] chdir("./file0") = 0 [pid 5335] ioctl(4, LOOP_CLR_FD) = 0 [pid 5335] close(4) = 0 [pid 5335] mkdir(".", 0777) = -1 EEXIST (File exists) [ 113.773700][ T5335] 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 [ 113.790455][ T5335] REISERFS (device loop0): checking transaction log (loop0) [ 113.798747][ T5335] REISERFS (device loop0): Using r5 hash to sort names [ 113.809838][ T5335] reiserfs: enabling write barrier flush mode [pid 5335] mount(NULL, ".", 0x200000c0, 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 5335] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5335] chdir(".") = 0 [pid 5335] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5335] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5335] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5335] close(3) = 0 [pid 5335] close(4) = 0 [pid 5335] close(5) = 0 [pid 5335] close(6) = -1 EBADF (Bad file descriptor) [pid 5335] close(7) = -1 EBADF (Bad file descriptor) [pid 5335] close(8) = -1 EBADF (Bad file descriptor) [pid 5335] close(9) = -1 EBADF (Bad file descriptor) [pid 5335] close(10) = -1 EBADF (Bad file descriptor) [pid 5335] close(11) = -1 EBADF (Bad file descriptor) [pid 5335] close(12) = -1 EBADF (Bad file descriptor) [pid 5335] close(13) = -1 EBADF (Bad file descriptor) [pid 5335] close(14) = -1 EBADF (Bad file descriptor) [pid 5335] close(15) = -1 EBADF (Bad file descriptor) [pid 5335] close(16) = -1 EBADF (Bad file descriptor) [pid 5335] close(17) = -1 EBADF (Bad file descriptor) [pid 5335] close(18) = -1 EBADF (Bad file descriptor) [pid 5335] close(19) = -1 EBADF (Bad file descriptor) [pid 5335] close(20) = -1 EBADF (Bad file descriptor) [pid 5335] close(21) = -1 EBADF (Bad file descriptor) [pid 5335] close(22) = -1 EBADF (Bad file descriptor) [pid 5335] close(23) = -1 EBADF (Bad file descriptor) [pid 5335] close(24) = -1 EBADF (Bad file descriptor) [pid 5335] close(25) = -1 EBADF (Bad file descriptor) [pid 5335] close(26) = -1 EBADF (Bad file descriptor) [pid 5335] close(27) = -1 EBADF (Bad file descriptor) [pid 5335] close(28) = -1 EBADF (Bad file descriptor) [pid 5335] close(29) = -1 EBADF (Bad file descriptor) [pid 5335] exit_group(0) = ? [pid 5335] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=145, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./143", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./143/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 113.820471][ T5335] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(AT_FDCWD, "./143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./143/binderfs") = 0 [pid 5039] umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./143/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./143/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./143/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./143") = 0 [pid 5039] mkdir("./144", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5337 attached [pid 5337] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 146 [pid 5337] <... set_robust_list resumed>) = 0 [pid 5337] chdir("./144") = 0 [pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5337] setpgid(0, 0) = 0 [pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5337] write(3, "1000", 4) = 4 [pid 5337] close(3) = 0 [pid 5337] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5337] memfd_create("syzkaller", 0) = 3 [pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5337] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5337] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5337] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5337] close(3) = 0 [pid 5337] mkdir("./file0", 0777) = 0 [ 114.006264][ T5337] loop0: detected capacity change from 0 to 8192 [ 114.017141][ T5337] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.030227][ T5337] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 114.039511][ T5337] REISERFS (device loop0): using ordered data mode [ 114.046070][ T5337] reiserfs: using flush barriers [pid 5337] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5337] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5337] chdir("./file0") = 0 [pid 5337] ioctl(4, LOOP_CLR_FD) = 0 [pid 5337] close(4) = 0 [pid 5337] mkdir(".", 0777) = -1 EEXIST (File exists) [ 114.052508][ T5337] 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 [ 114.069227][ T5337] REISERFS (device loop0): checking transaction log (loop0) [ 114.077769][ T5337] REISERFS (device loop0): Using r5 hash to sort names [ 114.096657][ T5337] reiserfs: enabling write barrier flush mode [pid 5337] mount(NULL, ".", 0x200000c0, 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 5337] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5337] chdir(".") = 0 [pid 5337] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5337] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5337] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5337] close(3) = 0 [pid 5337] close(4) = 0 [pid 5337] close(5) = 0 [pid 5337] close(6) = -1 EBADF (Bad file descriptor) [pid 5337] close(7) = -1 EBADF (Bad file descriptor) [pid 5337] close(8) = -1 EBADF (Bad file descriptor) [pid 5337] close(9) = -1 EBADF (Bad file descriptor) [pid 5337] close(10) = -1 EBADF (Bad file descriptor) [pid 5337] close(11) = -1 EBADF (Bad file descriptor) [pid 5337] close(12) = -1 EBADF (Bad file descriptor) [pid 5337] close(13) = -1 EBADF (Bad file descriptor) [pid 5337] close(14) = -1 EBADF (Bad file descriptor) [pid 5337] close(15) = -1 EBADF (Bad file descriptor) [pid 5337] close(16) = -1 EBADF (Bad file descriptor) [pid 5337] close(17) = -1 EBADF (Bad file descriptor) [pid 5337] close(18) = -1 EBADF (Bad file descriptor) [pid 5337] close(19) = -1 EBADF (Bad file descriptor) [pid 5337] close(20) = -1 EBADF (Bad file descriptor) [pid 5337] close(21) = -1 EBADF (Bad file descriptor) [pid 5337] close(22) = -1 EBADF (Bad file descriptor) [pid 5337] close(23) = -1 EBADF (Bad file descriptor) [pid 5337] close(24) = -1 EBADF (Bad file descriptor) [pid 5337] close(25) = -1 EBADF (Bad file descriptor) [pid 5337] close(26) = -1 EBADF (Bad file descriptor) [pid 5337] close(27) = -1 EBADF (Bad file descriptor) [pid 5337] close(28) = -1 EBADF (Bad file descriptor) [pid 5337] close(29) = -1 EBADF (Bad file descriptor) [pid 5337] exit_group(0) = ? [pid 5337] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=146, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./144", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./144/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./144/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./144/binderfs") = 0 [ 114.108885][ T5337] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./144/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./144/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./144/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./144") = 0 [pid 5039] mkdir("./145", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5339 attached , child_tidptr=0x555555e46650) = 147 [pid 5339] set_robust_list(0x555555e46660, 24) = 0 [pid 5339] chdir("./145") = 0 [pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5339] setpgid(0, 0) = 0 [pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5339] write(3, "1000", 4) = 4 [pid 5339] close(3) = 0 [pid 5339] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5339] memfd_create("syzkaller", 0) = 3 [pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5339] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5339] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5339] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5339] close(3) = 0 [pid 5339] mkdir("./file0", 0777) = 0 [ 114.286247][ T5339] loop0: detected capacity change from 0 to 8192 [ 114.298296][ T5339] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.311400][ T5339] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 114.320782][ T5339] REISERFS (device loop0): using ordered data mode [ 114.327683][ T5339] reiserfs: using flush barriers [pid 5339] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5339] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5339] chdir("./file0") = 0 [pid 5339] ioctl(4, LOOP_CLR_FD) = 0 [pid 5339] close(4) = 0 [pid 5339] mkdir(".", 0777) = -1 EEXIST (File exists) [ 114.334455][ T5339] 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 [ 114.351438][ T5339] REISERFS (device loop0): checking transaction log (loop0) [ 114.359669][ T5339] REISERFS (device loop0): Using r5 hash to sort names [ 114.371185][ T5339] reiserfs: enabling write barrier flush mode [pid 5339] mount(NULL, ".", 0x200000c0, 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 5339] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5339] chdir(".") = 0 [pid 5339] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5339] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5339] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5339] close(3) = 0 [pid 5339] close(4) = 0 [pid 5339] close(5) = 0 [pid 5339] close(6) = -1 EBADF (Bad file descriptor) [pid 5339] close(7) = -1 EBADF (Bad file descriptor) [pid 5339] close(8) = -1 EBADF (Bad file descriptor) [pid 5339] close(9) = -1 EBADF (Bad file descriptor) [pid 5339] close(10) = -1 EBADF (Bad file descriptor) [pid 5339] close(11) = -1 EBADF (Bad file descriptor) [pid 5339] close(12) = -1 EBADF (Bad file descriptor) [pid 5339] close(13) = -1 EBADF (Bad file descriptor) [pid 5339] close(14) = -1 EBADF (Bad file descriptor) [pid 5339] close(15) = -1 EBADF (Bad file descriptor) [pid 5339] close(16) = -1 EBADF (Bad file descriptor) [pid 5339] close(17) = -1 EBADF (Bad file descriptor) [pid 5339] close(18) = -1 EBADF (Bad file descriptor) [pid 5339] close(19) = -1 EBADF (Bad file descriptor) [pid 5339] close(20) = -1 EBADF (Bad file descriptor) [pid 5339] close(21) = -1 EBADF (Bad file descriptor) [pid 5339] close(22) = -1 EBADF (Bad file descriptor) [pid 5339] close(23) = -1 EBADF (Bad file descriptor) [pid 5339] close(24) = -1 EBADF (Bad file descriptor) [pid 5339] close(25) = -1 EBADF (Bad file descriptor) [pid 5339] close(26) = -1 EBADF (Bad file descriptor) [pid 5339] close(27) = -1 EBADF (Bad file descriptor) [pid 5339] close(28) = -1 EBADF (Bad file descriptor) [pid 5339] close(29) = -1 EBADF (Bad file descriptor) [pid 5339] exit_group(0) = ? [pid 5339] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=147, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./145", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./145/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./145/binderfs") = 0 [ 114.382985][ T5339] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./145/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./145/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./145/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./145") = 0 [pid 5039] mkdir("./146", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5341 attached , child_tidptr=0x555555e46650) = 148 [pid 5341] set_robust_list(0x555555e46660, 24) = 0 [pid 5341] chdir("./146") = 0 [pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5341] setpgid(0, 0) = 0 [pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5341] write(3, "1000", 4) = 4 [pid 5341] close(3) = 0 [pid 5341] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5341] memfd_create("syzkaller", 0) = 3 [pid 5341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5341] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5341] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5341] close(3) = 0 [pid 5341] mkdir("./file0", 0777) = 0 [ 114.534344][ T5341] loop0: detected capacity change from 0 to 8192 [ 114.547281][ T5341] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.560375][ T5341] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 114.569781][ T5341] REISERFS (device loop0): using ordered data mode [ 114.576432][ T5341] reiserfs: using flush barriers [pid 5341] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5341] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5341] chdir("./file0") = 0 [pid 5341] ioctl(4, LOOP_CLR_FD) = 0 [pid 5341] close(4) = 0 [pid 5341] mkdir(".", 0777) = -1 EEXIST (File exists) [ 114.582745][ T5341] 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 [ 114.599328][ T5341] REISERFS (device loop0): checking transaction log (loop0) [ 114.607538][ T5341] REISERFS (device loop0): Using r5 hash to sort names [ 114.627273][ T5341] reiserfs: enabling write barrier flush mode [pid 5341] mount(NULL, ".", 0x200000c0, 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 5341] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5341] chdir(".") = 0 [pid 5341] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5341] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5341] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5341] close(3) = 0 [pid 5341] close(4) = 0 [pid 5341] close(5) = 0 [pid 5341] close(6) = -1 EBADF (Bad file descriptor) [pid 5341] close(7) = -1 EBADF (Bad file descriptor) [pid 5341] close(8) = -1 EBADF (Bad file descriptor) [pid 5341] close(9) = -1 EBADF (Bad file descriptor) [pid 5341] close(10) = -1 EBADF (Bad file descriptor) [pid 5341] close(11) = -1 EBADF (Bad file descriptor) [pid 5341] close(12) = -1 EBADF (Bad file descriptor) [pid 5341] close(13) = -1 EBADF (Bad file descriptor) [pid 5341] close(14) = -1 EBADF (Bad file descriptor) [pid 5341] close(15) = -1 EBADF (Bad file descriptor) [pid 5341] close(16) = -1 EBADF (Bad file descriptor) [pid 5341] close(17) = -1 EBADF (Bad file descriptor) [pid 5341] close(18) = -1 EBADF (Bad file descriptor) [pid 5341] close(19) = -1 EBADF (Bad file descriptor) [pid 5341] close(20) = -1 EBADF (Bad file descriptor) [pid 5341] close(21) = -1 EBADF (Bad file descriptor) [pid 5341] close(22) = -1 EBADF (Bad file descriptor) [pid 5341] close(23) = -1 EBADF (Bad file descriptor) [pid 5341] close(24) = -1 EBADF (Bad file descriptor) [pid 5341] close(25) = -1 EBADF (Bad file descriptor) [pid 5341] close(26) = -1 EBADF (Bad file descriptor) [pid 5341] close(27) = -1 EBADF (Bad file descriptor) [pid 5341] close(28) = -1 EBADF (Bad file descriptor) [pid 5341] close(29) = -1 EBADF (Bad file descriptor) [pid 5341] exit_group(0) = ? [pid 5341] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=148, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./146", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./146/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./146/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./146/binderfs") = 0 [ 114.636719][ T5341] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./146/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./146/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./146/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./146") = 0 [pid 5039] mkdir("./147", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5343 attached , child_tidptr=0x555555e46650) = 149 [pid 5343] set_robust_list(0x555555e46660, 24) = 0 [pid 5343] chdir("./147") = 0 [pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5343] setpgid(0, 0) = 0 [pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5343] write(3, "1000", 4) = 4 [pid 5343] close(3) = 0 [pid 5343] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5343] memfd_create("syzkaller", 0) = 3 [pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5343] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5343] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5343] close(3) = 0 [pid 5343] mkdir("./file0", 0777) = 0 [ 114.798828][ T5343] loop0: detected capacity change from 0 to 8192 [ 114.809451][ T5343] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.822543][ T5343] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 114.831902][ T5343] REISERFS (device loop0): using ordered data mode [ 114.838451][ T5343] reiserfs: using flush barriers [pid 5343] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5343] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5343] chdir("./file0") = 0 [pid 5343] ioctl(4, LOOP_CLR_FD) = 0 [pid 5343] close(4) = 0 [pid 5343] mkdir(".", 0777) = -1 EEXIST (File exists) [ 114.844715][ T5343] 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 [ 114.861382][ T5343] REISERFS (device loop0): checking transaction log (loop0) [ 114.869812][ T5343] REISERFS (device loop0): Using r5 hash to sort names [ 114.891852][ T5343] reiserfs: enabling write barrier flush mode [pid 5343] mount(NULL, ".", 0x200000c0, 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 5343] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5343] chdir(".") = 0 [pid 5343] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5343] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5343] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5343] close(3) = 0 [pid 5343] close(4) = 0 [pid 5343] close(5) = 0 [pid 5343] close(6) = -1 EBADF (Bad file descriptor) [pid 5343] close(7) = -1 EBADF (Bad file descriptor) [pid 5343] close(8) = -1 EBADF (Bad file descriptor) [pid 5343] close(9) = -1 EBADF (Bad file descriptor) [pid 5343] close(10) = -1 EBADF (Bad file descriptor) [pid 5343] close(11) = -1 EBADF (Bad file descriptor) [pid 5343] close(12) = -1 EBADF (Bad file descriptor) [pid 5343] close(13) = -1 EBADF (Bad file descriptor) [pid 5343] close(14) = -1 EBADF (Bad file descriptor) [pid 5343] close(15) = -1 EBADF (Bad file descriptor) [pid 5343] close(16) = -1 EBADF (Bad file descriptor) [pid 5343] close(17) = -1 EBADF (Bad file descriptor) [pid 5343] close(18) = -1 EBADF (Bad file descriptor) [pid 5343] close(19) = -1 EBADF (Bad file descriptor) [pid 5343] close(20) = -1 EBADF (Bad file descriptor) [pid 5343] close(21) = -1 EBADF (Bad file descriptor) [pid 5343] close(22) = -1 EBADF (Bad file descriptor) [pid 5343] close(23) = -1 EBADF (Bad file descriptor) [pid 5343] close(24) = -1 EBADF (Bad file descriptor) [pid 5343] close(25) = -1 EBADF (Bad file descriptor) [pid 5343] close(26) = -1 EBADF (Bad file descriptor) [pid 5343] close(27) = -1 EBADF (Bad file descriptor) [pid 5343] close(28) = -1 EBADF (Bad file descriptor) [pid 5343] close(29) = -1 EBADF (Bad file descriptor) [pid 5343] exit_group(0) = ? [pid 5343] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=149, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./147", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./147/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./147/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./147/binderfs") = 0 [ 114.902431][ T5343] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./147/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./147/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./147/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./147") = 0 [pid 5039] mkdir("./148", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 150 ./strace-static-x86_64: Process 5345 attached [pid 5345] set_robust_list(0x555555e46660, 24) = 0 [pid 5345] chdir("./148") = 0 [pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5345] setpgid(0, 0) = 0 [pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5345] write(3, "1000", 4) = 4 [pid 5345] close(3) = 0 [pid 5345] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5345] memfd_create("syzkaller", 0) = 3 [pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5345] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5345] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5345] close(3) = 0 [pid 5345] mkdir("./file0", 0777) = 0 [ 115.071590][ T5345] loop0: detected capacity change from 0 to 8192 [ 115.083621][ T5345] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.096858][ T5345] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 115.106140][ T5345] REISERFS (device loop0): using ordered data mode [ 115.112826][ T5345] reiserfs: using flush barriers [pid 5345] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5345] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5345] chdir("./file0") = 0 [pid 5345] ioctl(4, LOOP_CLR_FD) = 0 [pid 5345] close(4) = 0 [pid 5345] mkdir(".", 0777) = -1 EEXIST (File exists) [ 115.119447][ T5345] 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 [ 115.135962][ T5345] REISERFS (device loop0): checking transaction log (loop0) [ 115.144148][ T5345] REISERFS (device loop0): Using r5 hash to sort names [ 115.156442][ T5345] reiserfs: enabling write barrier flush mode [pid 5345] mount(NULL, ".", 0x200000c0, 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 5345] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5345] chdir(".") = 0 [pid 5345] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5345] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5345] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5345] close(3) = 0 [pid 5345] close(4) = 0 [pid 5345] close(5) = 0 [pid 5345] close(6) = -1 EBADF (Bad file descriptor) [pid 5345] close(7) = -1 EBADF (Bad file descriptor) [pid 5345] close(8) = -1 EBADF (Bad file descriptor) [pid 5345] close(9) = -1 EBADF (Bad file descriptor) [pid 5345] close(10) = -1 EBADF (Bad file descriptor) [pid 5345] close(11) = -1 EBADF (Bad file descriptor) [pid 5345] close(12) = -1 EBADF (Bad file descriptor) [pid 5345] close(13) = -1 EBADF (Bad file descriptor) [pid 5345] close(14) = -1 EBADF (Bad file descriptor) [pid 5345] close(15) = -1 EBADF (Bad file descriptor) [pid 5345] close(16) = -1 EBADF (Bad file descriptor) [pid 5345] close(17) = -1 EBADF (Bad file descriptor) [pid 5345] close(18) = -1 EBADF (Bad file descriptor) [pid 5345] close(19) = -1 EBADF (Bad file descriptor) [pid 5345] close(20) = -1 EBADF (Bad file descriptor) [pid 5345] close(21) = -1 EBADF (Bad file descriptor) [pid 5345] close(22) = -1 EBADF (Bad file descriptor) [pid 5345] close(23) = -1 EBADF (Bad file descriptor) [pid 5345] close(24) = -1 EBADF (Bad file descriptor) [pid 5345] close(25) = -1 EBADF (Bad file descriptor) [pid 5345] close(26) = -1 EBADF (Bad file descriptor) [pid 5345] close(27) = -1 EBADF (Bad file descriptor) [pid 5345] close(28) = -1 EBADF (Bad file descriptor) [pid 5345] close(29) = -1 EBADF (Bad file descriptor) [pid 5345] exit_group(0) = ? [pid 5345] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=150, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./148", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./148/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./148/binderfs") = 0 [ 115.166842][ T5345] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./148/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./148/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./148/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./148") = 0 [pid 5039] mkdir("./149", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5347 attached , child_tidptr=0x555555e46650) = 151 [pid 5347] set_robust_list(0x555555e46660, 24) = 0 [pid 5347] chdir("./149") = 0 [pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5347] setpgid(0, 0) = 0 [pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5347] write(3, "1000", 4) = 4 [pid 5347] close(3) = 0 [pid 5347] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5347] memfd_create("syzkaller", 0) = 3 [pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5347] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5347] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5347] close(3) = 0 [pid 5347] mkdir("./file0", 0777) = 0 [ 115.326263][ T5347] loop0: detected capacity change from 0 to 8192 [ 115.337671][ T5347] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.350844][ T5347] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 115.360152][ T5347] REISERFS (device loop0): using ordered data mode [ 115.366781][ T5347] reiserfs: using flush barriers [pid 5347] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5347] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5347] chdir("./file0") = 0 [pid 5347] ioctl(4, LOOP_CLR_FD) = 0 [pid 5347] close(4) = 0 [pid 5347] mkdir(".", 0777) = -1 EEXIST (File exists) [ 115.373228][ T5347] 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 [ 115.389948][ T5347] REISERFS (device loop0): checking transaction log (loop0) [ 115.398343][ T5347] REISERFS (device loop0): Using r5 hash to sort names [ 115.417066][ T5347] reiserfs: enabling write barrier flush mode [pid 5347] mount(NULL, ".", 0x200000c0, 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 5347] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5347] chdir(".") = 0 [pid 5347] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5347] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5347] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5347] close(3) = 0 [pid 5347] close(4) = 0 [pid 5347] close(5) = 0 [pid 5347] close(6) = -1 EBADF (Bad file descriptor) [pid 5347] close(7) = -1 EBADF (Bad file descriptor) [pid 5347] close(8) = -1 EBADF (Bad file descriptor) [pid 5347] close(9) = -1 EBADF (Bad file descriptor) [pid 5347] close(10) = -1 EBADF (Bad file descriptor) [pid 5347] close(11) = -1 EBADF (Bad file descriptor) [pid 5347] close(12) = -1 EBADF (Bad file descriptor) [pid 5347] close(13) = -1 EBADF (Bad file descriptor) [pid 5347] close(14) = -1 EBADF (Bad file descriptor) [pid 5347] close(15) = -1 EBADF (Bad file descriptor) [pid 5347] close(16) = -1 EBADF (Bad file descriptor) [pid 5347] close(17) = -1 EBADF (Bad file descriptor) [pid 5347] close(18) = -1 EBADF (Bad file descriptor) [pid 5347] close(19) = -1 EBADF (Bad file descriptor) [pid 5347] close(20) = -1 EBADF (Bad file descriptor) [pid 5347] close(21) = -1 EBADF (Bad file descriptor) [pid 5347] close(22) = -1 EBADF (Bad file descriptor) [pid 5347] close(23) = -1 EBADF (Bad file descriptor) [pid 5347] close(24) = -1 EBADF (Bad file descriptor) [pid 5347] close(25) = -1 EBADF (Bad file descriptor) [pid 5347] close(26) = -1 EBADF (Bad file descriptor) [pid 5347] close(27) = -1 EBADF (Bad file descriptor) [pid 5347] close(28) = -1 EBADF (Bad file descriptor) [pid 5347] close(29) = -1 EBADF (Bad file descriptor) [pid 5347] exit_group(0) = ? [pid 5347] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=151, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./149", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./149/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./149/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./149/binderfs") = 0 [ 115.427105][ T5347] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./149/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./149/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./149/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./149") = 0 [pid 5039] mkdir("./150", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5349 attached [pid 5349] set_robust_list(0x555555e46660, 24) = 0 [pid 5349] chdir("./150") = 0 [pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5349] setpgid(0, 0) = 0 [pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5349] write(3, "1000", 4) = 4 [pid 5349] close(3) = 0 [pid 5349] symlink("/dev/binderfs", "./binderfs" [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 152 [pid 5349] <... symlink resumed>) = 0 [pid 5349] memfd_create("syzkaller", 0) = 3 [pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5349] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5349] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5349] close(3) = 0 [pid 5349] mkdir("./file0", 0777) = 0 [ 115.594316][ T5349] loop0: detected capacity change from 0 to 8192 [ 115.604280][ T5349] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.617460][ T5349] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 115.626857][ T5349] REISERFS (device loop0): using ordered data mode [ 115.633357][ T5349] reiserfs: using flush barriers [pid 5349] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5349] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5349] chdir("./file0") = 0 [pid 5349] ioctl(4, LOOP_CLR_FD) = 0 [pid 5349] close(4) = 0 [pid 5349] mkdir(".", 0777) = -1 EEXIST (File exists) [ 115.639875][ T5349] 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 [ 115.656369][ T5349] REISERFS (device loop0): checking transaction log (loop0) [ 115.664527][ T5349] REISERFS (device loop0): Using r5 hash to sort names [ 115.677748][ T5349] reiserfs: enabling write barrier flush mode [pid 5349] mount(NULL, ".", 0x200000c0, 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 5349] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5349] chdir(".") = 0 [pid 5349] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5349] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5349] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5349] close(3) = 0 [pid 5349] close(4) = 0 [pid 5349] close(5) = 0 [pid 5349] close(6) = -1 EBADF (Bad file descriptor) [pid 5349] close(7) = -1 EBADF (Bad file descriptor) [pid 5349] close(8) = -1 EBADF (Bad file descriptor) [pid 5349] close(9) = -1 EBADF (Bad file descriptor) [pid 5349] close(10) = -1 EBADF (Bad file descriptor) [pid 5349] close(11) = -1 EBADF (Bad file descriptor) [pid 5349] close(12) = -1 EBADF (Bad file descriptor) [pid 5349] close(13) = -1 EBADF (Bad file descriptor) [pid 5349] close(14) = -1 EBADF (Bad file descriptor) [pid 5349] close(15) = -1 EBADF (Bad file descriptor) [pid 5349] close(16) = -1 EBADF (Bad file descriptor) [pid 5349] close(17) = -1 EBADF (Bad file descriptor) [pid 5349] close(18) = -1 EBADF (Bad file descriptor) [pid 5349] close(19) = -1 EBADF (Bad file descriptor) [pid 5349] close(20) = -1 EBADF (Bad file descriptor) [pid 5349] close(21) = -1 EBADF (Bad file descriptor) [pid 5349] close(22) = -1 EBADF (Bad file descriptor) [pid 5349] close(23) = -1 EBADF (Bad file descriptor) [pid 5349] close(24) = -1 EBADF (Bad file descriptor) [pid 5349] close(25) = -1 EBADF (Bad file descriptor) [pid 5349] close(26) = -1 EBADF (Bad file descriptor) [pid 5349] close(27) = -1 EBADF (Bad file descriptor) [pid 5349] close(28) = -1 EBADF (Bad file descriptor) [pid 5349] close(29) = -1 EBADF (Bad file descriptor) [pid 5349] exit_group(0) = ? [pid 5349] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=152, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./150", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./150/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./150/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./150/binderfs") = 0 [ 115.688242][ T5349] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./150/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./150/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./150/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./150") = 0 [pid 5039] mkdir("./151", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5351 attached , child_tidptr=0x555555e46650) = 153 [pid 5351] set_robust_list(0x555555e46660, 24) = 0 [pid 5351] chdir("./151") = 0 [pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5351] setpgid(0, 0) = 0 [pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5351] write(3, "1000", 4) = 4 [pid 5351] close(3) = 0 [pid 5351] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5351] memfd_create("syzkaller", 0) = 3 [pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5351] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5351] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5351] close(3) = 0 [pid 5351] mkdir("./file0", 0777) = 0 [ 115.852946][ T5351] loop0: detected capacity change from 0 to 8192 [ 115.863464][ T5351] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.877090][ T5351] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 115.886559][ T5351] REISERFS (device loop0): using ordered data mode [ 115.893082][ T5351] reiserfs: using flush barriers [pid 5351] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5351] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5351] chdir("./file0") = 0 [pid 5351] ioctl(4, LOOP_CLR_FD) = 0 [pid 5351] close(4) = 0 [pid 5351] mkdir(".", 0777) = -1 EEXIST (File exists) [ 115.899725][ T5351] 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 [ 115.916338][ T5351] REISERFS (device loop0): checking transaction log (loop0) [ 115.924714][ T5351] REISERFS (device loop0): Using r5 hash to sort names [ 115.937951][ T5351] reiserfs: enabling write barrier flush mode [pid 5351] mount(NULL, ".", 0x200000c0, 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 5351] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5351] chdir(".") = 0 [pid 5351] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5351] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5351] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5351] close(3) = 0 [pid 5351] close(4) = 0 [pid 5351] close(5) = 0 [pid 5351] close(6) = -1 EBADF (Bad file descriptor) [pid 5351] close(7) = -1 EBADF (Bad file descriptor) [pid 5351] close(8) = -1 EBADF (Bad file descriptor) [pid 5351] close(9) = -1 EBADF (Bad file descriptor) [pid 5351] close(10) = -1 EBADF (Bad file descriptor) [pid 5351] close(11) = -1 EBADF (Bad file descriptor) [pid 5351] close(12) = -1 EBADF (Bad file descriptor) [pid 5351] close(13) = -1 EBADF (Bad file descriptor) [pid 5351] close(14) = -1 EBADF (Bad file descriptor) [pid 5351] close(15) = -1 EBADF (Bad file descriptor) [pid 5351] close(16) = -1 EBADF (Bad file descriptor) [pid 5351] close(17) = -1 EBADF (Bad file descriptor) [pid 5351] close(18) = -1 EBADF (Bad file descriptor) [pid 5351] close(19) = -1 EBADF (Bad file descriptor) [pid 5351] close(20) = -1 EBADF (Bad file descriptor) [pid 5351] close(21) = -1 EBADF (Bad file descriptor) [pid 5351] close(22) = -1 EBADF (Bad file descriptor) [pid 5351] close(23) = -1 EBADF (Bad file descriptor) [pid 5351] close(24) = -1 EBADF (Bad file descriptor) [pid 5351] close(25) = -1 EBADF (Bad file descriptor) [pid 5351] close(26) = -1 EBADF (Bad file descriptor) [pid 5351] close(27) = -1 EBADF (Bad file descriptor) [pid 5351] close(28) = -1 EBADF (Bad file descriptor) [pid 5351] close(29) = -1 EBADF (Bad file descriptor) [pid 5351] exit_group(0) = ? [pid 5351] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=153, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./151", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./151/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./151/binderfs") = 0 [ 115.948285][ T5351] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./151/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./151/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./151/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./151") = 0 [pid 5039] mkdir("./152", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 154 ./strace-static-x86_64: Process 5353 attached [pid 5353] set_robust_list(0x555555e46660, 24) = 0 [pid 5353] chdir("./152") = 0 [pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5353] setpgid(0, 0) = 0 [pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5353] write(3, "1000", 4) = 4 [pid 5353] close(3) = 0 [pid 5353] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5353] memfd_create("syzkaller", 0) = 3 [pid 5353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5353] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5353] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5353] close(3) = 0 [pid 5353] mkdir("./file0", 0777) = 0 [ 116.096322][ T5353] loop0: detected capacity change from 0 to 8192 [ 116.107229][ T5353] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.120280][ T5353] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 116.129664][ T5353] REISERFS (device loop0): using ordered data mode [ 116.136725][ T5353] reiserfs: using flush barriers [pid 5353] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5353] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5353] chdir("./file0") = 0 [pid 5353] ioctl(4, LOOP_CLR_FD) = 0 [pid 5353] close(4) = 0 [pid 5353] mkdir(".", 0777) = -1 EEXIST (File exists) [ 116.143463][ T5353] 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 [ 116.160404][ T5353] REISERFS (device loop0): checking transaction log (loop0) [ 116.168838][ T5353] REISERFS (device loop0): Using r5 hash to sort names [ 116.178826][ T5353] reiserfs: enabling write barrier flush mode [pid 5353] mount(NULL, ".", 0x200000c0, 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 5353] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5353] chdir(".") = 0 [pid 5353] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5353] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5353] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5353] close(3) = 0 [pid 5353] close(4) = 0 [pid 5353] close(5) = 0 [pid 5353] close(6) = -1 EBADF (Bad file descriptor) [pid 5353] close(7) = -1 EBADF (Bad file descriptor) [pid 5353] close(8) = -1 EBADF (Bad file descriptor) [pid 5353] close(9) = -1 EBADF (Bad file descriptor) [pid 5353] close(10) = -1 EBADF (Bad file descriptor) [pid 5353] close(11) = -1 EBADF (Bad file descriptor) [pid 5353] close(12) = -1 EBADF (Bad file descriptor) [pid 5353] close(13) = -1 EBADF (Bad file descriptor) [pid 5353] close(14) = -1 EBADF (Bad file descriptor) [pid 5353] close(15) = -1 EBADF (Bad file descriptor) [pid 5353] close(16) = -1 EBADF (Bad file descriptor) [pid 5353] close(17) = -1 EBADF (Bad file descriptor) [pid 5353] close(18) = -1 EBADF (Bad file descriptor) [pid 5353] close(19) = -1 EBADF (Bad file descriptor) [pid 5353] close(20) = -1 EBADF (Bad file descriptor) [pid 5353] close(21) = -1 EBADF (Bad file descriptor) [pid 5353] close(22) = -1 EBADF (Bad file descriptor) [pid 5353] close(23) = -1 EBADF (Bad file descriptor) [pid 5353] close(24) = -1 EBADF (Bad file descriptor) [pid 5353] close(25) = -1 EBADF (Bad file descriptor) [pid 5353] close(26) = -1 EBADF (Bad file descriptor) [pid 5353] close(27) = -1 EBADF (Bad file descriptor) [pid 5353] close(28) = -1 EBADF (Bad file descriptor) [pid 5353] close(29) = -1 EBADF (Bad file descriptor) [pid 5353] exit_group(0) = ? [pid 5353] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=154, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./152", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./152/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./152/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./152/binderfs") = 0 [ 116.190709][ T5353] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./152/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./152/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./152/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./152") = 0 [pid 5039] mkdir("./153", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5355 attached , child_tidptr=0x555555e46650) = 155 [pid 5355] set_robust_list(0x555555e46660, 24) = 0 [pid 5355] chdir("./153") = 0 [pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5355] setpgid(0, 0) = 0 [pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5355] write(3, "1000", 4) = 4 [pid 5355] close(3) = 0 [pid 5355] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5355] memfd_create("syzkaller", 0) = 3 [pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5355] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5355] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5355] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5355] close(3) = 0 [pid 5355] mkdir("./file0", 0777) = 0 [ 116.360925][ T5355] loop0: detected capacity change from 0 to 8192 [ 116.371708][ T5355] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.384795][ T5355] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 116.394100][ T5355] REISERFS (device loop0): using ordered data mode [ 116.400697][ T5355] reiserfs: using flush barriers [pid 5355] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5355] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5355] chdir("./file0") = 0 [pid 5355] ioctl(4, LOOP_CLR_FD) = 0 [pid 5355] close(4) = 0 [pid 5355] mkdir(".", 0777) = -1 EEXIST (File exists) [ 116.406971][ T5355] 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 [ 116.423882][ T5355] REISERFS (device loop0): checking transaction log (loop0) [ 116.432062][ T5355] REISERFS (device loop0): Using r5 hash to sort names [ 116.443240][ T5355] reiserfs: enabling write barrier flush mode [pid 5355] mount(NULL, ".", 0x200000c0, 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 5355] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5355] chdir(".") = 0 [pid 5355] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5355] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5355] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5355] close(3) = 0 [pid 5355] close(4) = 0 [pid 5355] close(5) = 0 [pid 5355] close(6) = -1 EBADF (Bad file descriptor) [pid 5355] close(7) = -1 EBADF (Bad file descriptor) [pid 5355] close(8) = -1 EBADF (Bad file descriptor) [pid 5355] close(9) = -1 EBADF (Bad file descriptor) [pid 5355] close(10) = -1 EBADF (Bad file descriptor) [pid 5355] close(11) = -1 EBADF (Bad file descriptor) [pid 5355] close(12) = -1 EBADF (Bad file descriptor) [pid 5355] close(13) = -1 EBADF (Bad file descriptor) [pid 5355] close(14) = -1 EBADF (Bad file descriptor) [pid 5355] close(15) = -1 EBADF (Bad file descriptor) [pid 5355] close(16) = -1 EBADF (Bad file descriptor) [pid 5355] close(17) = -1 EBADF (Bad file descriptor) [pid 5355] close(18) = -1 EBADF (Bad file descriptor) [pid 5355] close(19) = -1 EBADF (Bad file descriptor) [pid 5355] close(20) = -1 EBADF (Bad file descriptor) [pid 5355] close(21) = -1 EBADF (Bad file descriptor) [pid 5355] close(22) = -1 EBADF (Bad file descriptor) [pid 5355] close(23) = -1 EBADF (Bad file descriptor) [pid 5355] close(24) = -1 EBADF (Bad file descriptor) [pid 5355] close(25) = -1 EBADF (Bad file descriptor) [pid 5355] close(26) = -1 EBADF (Bad file descriptor) [pid 5355] close(27) = -1 EBADF (Bad file descriptor) [pid 5355] close(28) = -1 EBADF (Bad file descriptor) [pid 5355] close(29) = -1 EBADF (Bad file descriptor) [pid 5355] exit_group(0) = ? [pid 5355] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=155, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./153", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./153/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./153/binderfs") = 0 [ 116.454286][ T5355] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./153/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./153/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./153/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./153") = 0 [pid 5039] mkdir("./154", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 156 ./strace-static-x86_64: Process 5357 attached [pid 5357] set_robust_list(0x555555e46660, 24) = 0 [pid 5357] chdir("./154") = 0 [pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5357] setpgid(0, 0) = 0 [pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5357] write(3, "1000", 4) = 4 [pid 5357] close(3) = 0 [pid 5357] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5357] memfd_create("syzkaller", 0) = 3 [pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5357] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5357] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5357] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5357] close(3) = 0 [pid 5357] mkdir("./file0", 0777) = 0 [ 116.629174][ T5357] loop0: detected capacity change from 0 to 8192 [ 116.639965][ T5357] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.653065][ T5357] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 116.662466][ T5357] REISERFS (device loop0): using ordered data mode [ 116.669028][ T5357] reiserfs: using flush barriers [pid 5357] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5357] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5357] chdir("./file0") = 0 [pid 5357] ioctl(4, LOOP_CLR_FD) = 0 [pid 5357] close(4) = 0 [pid 5357] mkdir(".", 0777) = -1 EEXIST (File exists) [ 116.675396][ T5357] 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 [ 116.692072][ T5357] REISERFS (device loop0): checking transaction log (loop0) [ 116.700557][ T5357] REISERFS (device loop0): Using r5 hash to sort names [ 116.712841][ T5357] reiserfs: enabling write barrier flush mode [pid 5357] mount(NULL, ".", 0x200000c0, 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 5357] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5357] chdir(".") = 0 [pid 5357] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5357] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5357] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5357] close(3) = 0 [pid 5357] close(4) = 0 [pid 5357] close(5) = 0 [pid 5357] close(6) = -1 EBADF (Bad file descriptor) [pid 5357] close(7) = -1 EBADF (Bad file descriptor) [pid 5357] close(8) = -1 EBADF (Bad file descriptor) [pid 5357] close(9) = -1 EBADF (Bad file descriptor) [pid 5357] close(10) = -1 EBADF (Bad file descriptor) [pid 5357] close(11) = -1 EBADF (Bad file descriptor) [pid 5357] close(12) = -1 EBADF (Bad file descriptor) [pid 5357] close(13) = -1 EBADF (Bad file descriptor) [pid 5357] close(14) = -1 EBADF (Bad file descriptor) [pid 5357] close(15) = -1 EBADF (Bad file descriptor) [pid 5357] close(16) = -1 EBADF (Bad file descriptor) [pid 5357] close(17) = -1 EBADF (Bad file descriptor) [pid 5357] close(18) = -1 EBADF (Bad file descriptor) [pid 5357] close(19) = -1 EBADF (Bad file descriptor) [pid 5357] close(20) = -1 EBADF (Bad file descriptor) [pid 5357] close(21) = -1 EBADF (Bad file descriptor) [pid 5357] close(22) = -1 EBADF (Bad file descriptor) [pid 5357] close(23) = -1 EBADF (Bad file descriptor) [pid 5357] close(24) = -1 EBADF (Bad file descriptor) [pid 5357] close(25) = -1 EBADF (Bad file descriptor) [pid 5357] close(26) = -1 EBADF (Bad file descriptor) [pid 5357] close(27) = -1 EBADF (Bad file descriptor) [pid 5357] close(28) = -1 EBADF (Bad file descriptor) [pid 5357] close(29) = -1 EBADF (Bad file descriptor) [pid 5357] exit_group(0) = ? [pid 5357] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=156, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./154", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./154/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./154/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./154/binderfs") = 0 [ 116.722585][ T5357] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./154/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./154/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./154/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./154") = 0 [pid 5039] mkdir("./155", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5359 attached , child_tidptr=0x555555e46650) = 157 [pid 5359] set_robust_list(0x555555e46660, 24) = 0 [pid 5359] chdir("./155") = 0 [pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5359] setpgid(0, 0) = 0 [pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5359] write(3, "1000", 4) = 4 [pid 5359] close(3) = 0 [pid 5359] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5359] memfd_create("syzkaller", 0) = 3 [pid 5359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5359] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5359] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5359] close(3) = 0 [pid 5359] mkdir("./file0", 0777) = 0 [ 116.892929][ T5359] loop0: detected capacity change from 0 to 8192 [ 116.903968][ T5359] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.917145][ T5359] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 116.926509][ T5359] REISERFS (device loop0): using ordered data mode [ 116.933091][ T5359] reiserfs: using flush barriers [pid 5359] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5359] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5359] chdir("./file0") = 0 [pid 5359] ioctl(4, LOOP_CLR_FD) = 0 [pid 5359] close(4) = 0 [pid 5359] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5359] mount(NULL, ".", 0x200000c0, 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 5359] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5359] chdir(".") = 0 [pid 5359] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5359] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5359] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5359] close(3) = 0 [pid 5359] close(4) = 0 [pid 5359] close(5) = 0 [pid 5359] close(6) = -1 EBADF (Bad file descriptor) [pid 5359] close(7) = -1 EBADF (Bad file descriptor) [pid 5359] close(8) = -1 EBADF (Bad file descriptor) [pid 5359] close(9) = -1 EBADF (Bad file descriptor) [pid 5359] close(10) = -1 EBADF (Bad file descriptor) [pid 5359] close(11) = -1 EBADF (Bad file descriptor) [pid 5359] close(12) = -1 EBADF (Bad file descriptor) [pid 5359] close(13) = -1 EBADF (Bad file descriptor) [pid 5359] close(14) = -1 EBADF (Bad file descriptor) [pid 5359] close(15) = -1 EBADF (Bad file descriptor) [pid 5359] close(16) = -1 EBADF (Bad file descriptor) [pid 5359] close(17) = -1 EBADF (Bad file descriptor) [pid 5359] close(18) = -1 EBADF (Bad file descriptor) [pid 5359] close(19) = -1 EBADF (Bad file descriptor) [pid 5359] close(20) = -1 EBADF (Bad file descriptor) [pid 5359] close(21) = -1 EBADF (Bad file descriptor) [ 116.939570][ T5359] 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 [ 116.956339][ T5359] REISERFS (device loop0): checking transaction log (loop0) [ 116.964675][ T5359] REISERFS (device loop0): Using r5 hash to sort names [ 116.974513][ T5359] reiserfs: enabling write barrier flush mode [ 116.984371][ T5359] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5359] close(22) = -1 EBADF (Bad file descriptor) [pid 5359] close(23) = -1 EBADF (Bad file descriptor) [pid 5359] close(24) = -1 EBADF (Bad file descriptor) [pid 5359] close(25) = -1 EBADF (Bad file descriptor) [pid 5359] close(26) = -1 EBADF (Bad file descriptor) [pid 5359] close(27) = -1 EBADF (Bad file descriptor) [pid 5359] close(28) = -1 EBADF (Bad file descriptor) [pid 5359] close(29) = -1 EBADF (Bad file descriptor) [pid 5359] exit_group(0) = ? [pid 5359] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=157, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./155", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./155/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./155/binderfs") = 0 [pid 5039] umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./155/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./155/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./155/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./155") = 0 [pid 5039] mkdir("./156", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5361 attached [pid 5361] set_robust_list(0x555555e46660, 24) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 158 [pid 5361] chdir("./156") = 0 [pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5361] setpgid(0, 0) = 0 [pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5361] write(3, "1000", 4) = 4 [pid 5361] close(3) = 0 [pid 5361] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5361] memfd_create("syzkaller", 0) = 3 [pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5361] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5361] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5361] close(3) = 0 [pid 5361] mkdir("./file0", 0777) = 0 [ 117.152167][ T5361] loop0: detected capacity change from 0 to 8192 [ 117.162841][ T5361] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.176339][ T5361] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 117.185745][ T5361] REISERFS (device loop0): using ordered data mode [ 117.192264][ T5361] reiserfs: using flush barriers [pid 5361] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5361] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5361] chdir("./file0") = 0 [pid 5361] ioctl(4, LOOP_CLR_FD) = 0 [pid 5361] close(4) = 0 [pid 5361] mkdir(".", 0777) = -1 EEXIST (File exists) [ 117.198768][ T5361] 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 [ 117.215379][ T5361] REISERFS (device loop0): checking transaction log (loop0) [ 117.223415][ T5361] REISERFS (device loop0): Using r5 hash to sort names [ 117.235697][ T5361] reiserfs: enabling write barrier flush mode [pid 5361] mount(NULL, ".", 0x200000c0, 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 5361] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5361] chdir(".") = 0 [pid 5361] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5361] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5361] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5361] close(3) = 0 [pid 5361] close(4) = 0 [pid 5361] close(5) = 0 [pid 5361] close(6) = -1 EBADF (Bad file descriptor) [pid 5361] close(7) = -1 EBADF (Bad file descriptor) [pid 5361] close(8) = -1 EBADF (Bad file descriptor) [pid 5361] close(9) = -1 EBADF (Bad file descriptor) [pid 5361] close(10) = -1 EBADF (Bad file descriptor) [pid 5361] close(11) = -1 EBADF (Bad file descriptor) [pid 5361] close(12) = -1 EBADF (Bad file descriptor) [pid 5361] close(13) = -1 EBADF (Bad file descriptor) [pid 5361] close(14) = -1 EBADF (Bad file descriptor) [pid 5361] close(15) = -1 EBADF (Bad file descriptor) [pid 5361] close(16) = -1 EBADF (Bad file descriptor) [pid 5361] close(17) = -1 EBADF (Bad file descriptor) [pid 5361] close(18) = -1 EBADF (Bad file descriptor) [pid 5361] close(19) = -1 EBADF (Bad file descriptor) [pid 5361] close(20) = -1 EBADF (Bad file descriptor) [pid 5361] close(21) = -1 EBADF (Bad file descriptor) [pid 5361] close(22) = -1 EBADF (Bad file descriptor) [pid 5361] close(23) = -1 EBADF (Bad file descriptor) [ 117.247170][ T5361] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5361] close(24) = -1 EBADF (Bad file descriptor) [pid 5361] close(25) = -1 EBADF (Bad file descriptor) [pid 5361] close(26) = -1 EBADF (Bad file descriptor) [pid 5361] close(27) = -1 EBADF (Bad file descriptor) [pid 5361] close(28) = -1 EBADF (Bad file descriptor) [pid 5361] close(29) = -1 EBADF (Bad file descriptor) [pid 5361] exit_group(0) = ? [pid 5361] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=158, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./156/binderfs") = 0 [pid 5039] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./156/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./156/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./156/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./156") = 0 [pid 5039] mkdir("./157", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5363 attached , child_tidptr=0x555555e46650) = 159 [pid 5363] set_robust_list(0x555555e46660, 24) = 0 [pid 5363] chdir("./157") = 0 [pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5363] setpgid(0, 0) = 0 [pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5363] write(3, "1000", 4) = 4 [pid 5363] close(3) = 0 [pid 5363] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5363] memfd_create("syzkaller", 0) = 3 [pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5363] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5363] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5363] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5363] close(3) = 0 [pid 5363] mkdir("./file0", 0777) = 0 [ 117.437698][ T5363] loop0: detected capacity change from 0 to 8192 [ 117.448674][ T5363] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.461812][ T5363] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 117.471383][ T5363] REISERFS (device loop0): using ordered data mode [ 117.477955][ T5363] reiserfs: using flush barriers [pid 5363] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5363] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5363] chdir("./file0") = 0 [pid 5363] ioctl(4, LOOP_CLR_FD) = 0 [pid 5363] close(4) = 0 [pid 5363] mkdir(".", 0777) = -1 EEXIST (File exists) [ 117.484260][ T5363] 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 [ 117.501038][ T5363] REISERFS (device loop0): checking transaction log (loop0) [ 117.509521][ T5363] REISERFS (device loop0): Using r5 hash to sort names [ 117.527773][ T5363] reiserfs: enabling write barrier flush mode [pid 5363] mount(NULL, ".", 0x200000c0, 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 5363] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5363] chdir(".") = 0 [pid 5363] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5363] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5363] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5363] close(3) = 0 [pid 5363] close(4) = 0 [pid 5363] close(5) = 0 [pid 5363] close(6) = -1 EBADF (Bad file descriptor) [pid 5363] close(7) = -1 EBADF (Bad file descriptor) [pid 5363] close(8) = -1 EBADF (Bad file descriptor) [pid 5363] close(9) = -1 EBADF (Bad file descriptor) [pid 5363] close(10) = -1 EBADF (Bad file descriptor) [pid 5363] close(11) = -1 EBADF (Bad file descriptor) [pid 5363] close(12) = -1 EBADF (Bad file descriptor) [pid 5363] close(13) = -1 EBADF (Bad file descriptor) [pid 5363] close(14) = -1 EBADF (Bad file descriptor) [pid 5363] close(15) = -1 EBADF (Bad file descriptor) [pid 5363] close(16) = -1 EBADF (Bad file descriptor) [pid 5363] close(17) = -1 EBADF (Bad file descriptor) [pid 5363] close(18) = -1 EBADF (Bad file descriptor) [pid 5363] close(19) = -1 EBADF (Bad file descriptor) [pid 5363] close(20) = -1 EBADF (Bad file descriptor) [pid 5363] close(21) = -1 EBADF (Bad file descriptor) [pid 5363] close(22) = -1 EBADF (Bad file descriptor) [pid 5363] close(23) = -1 EBADF (Bad file descriptor) [pid 5363] close(24) = -1 EBADF (Bad file descriptor) [pid 5363] close(25) = -1 EBADF (Bad file descriptor) [pid 5363] close(26) = -1 EBADF (Bad file descriptor) [pid 5363] close(27) = -1 EBADF (Bad file descriptor) [pid 5363] close(28) = -1 EBADF (Bad file descriptor) [pid 5363] close(29) = -1 EBADF (Bad file descriptor) [pid 5363] exit_group(0) = ? [pid 5363] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=159, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./157/binderfs") = 0 [ 117.537299][ T5363] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./157/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./157/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./157/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./157") = 0 [pid 5039] mkdir("./158", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5365 attached , child_tidptr=0x555555e46650) = 160 [pid 5365] set_robust_list(0x555555e46660, 24) = 0 [pid 5365] chdir("./158") = 0 [pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5365] setpgid(0, 0) = 0 [pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5365] write(3, "1000", 4) = 4 [pid 5365] close(3) = 0 [pid 5365] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5365] memfd_create("syzkaller", 0) = 3 [pid 5365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5365] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5365] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5365] close(3) = 0 [pid 5365] mkdir("./file0", 0777) = 0 [ 117.711409][ T5365] loop0: detected capacity change from 0 to 8192 [ 117.721436][ T5365] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.734584][ T5365] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 117.744212][ T5365] REISERFS (device loop0): using ordered data mode [ 117.751074][ T5365] reiserfs: using flush barriers [pid 5365] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5365] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5365] chdir("./file0") = 0 [pid 5365] ioctl(4, LOOP_CLR_FD) = 0 [pid 5365] close(4) = 0 [pid 5365] mkdir(".", 0777) = -1 EEXIST (File exists) [ 117.757462][ T5365] 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 [ 117.774201][ T5365] REISERFS (device loop0): checking transaction log (loop0) [ 117.782659][ T5365] REISERFS (device loop0): Using r5 hash to sort names [ 117.796286][ T5365] reiserfs: enabling write barrier flush mode [pid 5365] mount(NULL, ".", 0x200000c0, 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 5365] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5365] chdir(".") = 0 [pid 5365] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5365] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5365] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5365] close(3) = 0 [pid 5365] close(4) = 0 [pid 5365] close(5) = 0 [pid 5365] close(6) = -1 EBADF (Bad file descriptor) [pid 5365] close(7) = -1 EBADF (Bad file descriptor) [pid 5365] close(8) = -1 EBADF (Bad file descriptor) [pid 5365] close(9) = -1 EBADF (Bad file descriptor) [pid 5365] close(10) = -1 EBADF (Bad file descriptor) [pid 5365] close(11) = -1 EBADF (Bad file descriptor) [pid 5365] close(12) = -1 EBADF (Bad file descriptor) [pid 5365] close(13) = -1 EBADF (Bad file descriptor) [pid 5365] close(14) = -1 EBADF (Bad file descriptor) [pid 5365] close(15) = -1 EBADF (Bad file descriptor) [pid 5365] close(16) = -1 EBADF (Bad file descriptor) [pid 5365] close(17) = -1 EBADF (Bad file descriptor) [pid 5365] close(18) = -1 EBADF (Bad file descriptor) [pid 5365] close(19) = -1 EBADF (Bad file descriptor) [pid 5365] close(20) = -1 EBADF (Bad file descriptor) [pid 5365] close(21) = -1 EBADF (Bad file descriptor) [pid 5365] close(22) = -1 EBADF (Bad file descriptor) [pid 5365] close(23) = -1 EBADF (Bad file descriptor) [pid 5365] close(24) = -1 EBADF (Bad file descriptor) [pid 5365] close(25) = -1 EBADF (Bad file descriptor) [pid 5365] close(26) = -1 EBADF (Bad file descriptor) [pid 5365] close(27) = -1 EBADF (Bad file descriptor) [pid 5365] close(28) = -1 EBADF (Bad file descriptor) [pid 5365] close(29) = -1 EBADF (Bad file descriptor) [pid 5365] exit_group(0) = ? [pid 5365] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=160, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 117.806886][ T5365] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./158/binderfs") = 0 [pid 5039] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./158/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./158") = 0 [pid 5039] mkdir("./159", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5367 attached , child_tidptr=0x555555e46650) = 161 [pid 5367] set_robust_list(0x555555e46660, 24) = 0 [pid 5367] chdir("./159") = 0 [pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5367] setpgid(0, 0) = 0 [pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5367] write(3, "1000", 4) = 4 [pid 5367] close(3) = 0 [pid 5367] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5367] memfd_create("syzkaller", 0) = 3 [pid 5367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5367] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5367] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5367] close(3) = 0 [pid 5367] mkdir("./file0", 0777) = 0 [ 117.983923][ T5367] loop0: detected capacity change from 0 to 8192 [ 117.994222][ T5367] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.007310][ T5367] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 118.016532][ T5367] REISERFS (device loop0): using ordered data mode [ 118.023061][ T5367] reiserfs: using flush barriers [pid 5367] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5367] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5367] chdir("./file0") = 0 [pid 5367] ioctl(4, LOOP_CLR_FD) = 0 [pid 5367] close(4) = 0 [pid 5367] mkdir(".", 0777) = -1 EEXIST (File exists) [ 118.029654][ T5367] 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 [ 118.046275][ T5367] REISERFS (device loop0): checking transaction log (loop0) [ 118.054656][ T5367] REISERFS (device loop0): Using r5 hash to sort names [ 118.068016][ T5367] reiserfs: enabling write barrier flush mode [pid 5367] mount(NULL, ".", 0x200000c0, 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 5367] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5367] chdir(".") = 0 [pid 5367] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5367] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5367] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5367] close(3) = 0 [pid 5367] close(4) = 0 [pid 5367] close(5) = 0 [pid 5367] close(6) = -1 EBADF (Bad file descriptor) [pid 5367] close(7) = -1 EBADF (Bad file descriptor) [pid 5367] close(8) = -1 EBADF (Bad file descriptor) [pid 5367] close(9) = -1 EBADF (Bad file descriptor) [pid 5367] close(10) = -1 EBADF (Bad file descriptor) [pid 5367] close(11) = -1 EBADF (Bad file descriptor) [pid 5367] close(12) = -1 EBADF (Bad file descriptor) [pid 5367] close(13) = -1 EBADF (Bad file descriptor) [pid 5367] close(14) = -1 EBADF (Bad file descriptor) [pid 5367] close(15) = -1 EBADF (Bad file descriptor) [pid 5367] close(16) = -1 EBADF (Bad file descriptor) [pid 5367] close(17) = -1 EBADF (Bad file descriptor) [pid 5367] close(18) = -1 EBADF (Bad file descriptor) [pid 5367] close(19) = -1 EBADF (Bad file descriptor) [pid 5367] close(20) = -1 EBADF (Bad file descriptor) [pid 5367] close(21) = -1 EBADF (Bad file descriptor) [pid 5367] close(22) = -1 EBADF (Bad file descriptor) [pid 5367] close(23) = -1 EBADF (Bad file descriptor) [pid 5367] close(24) = -1 EBADF (Bad file descriptor) [pid 5367] close(25) = -1 EBADF (Bad file descriptor) [pid 5367] close(26) = -1 EBADF (Bad file descriptor) [pid 5367] close(27) = -1 EBADF (Bad file descriptor) [pid 5367] close(28) = -1 EBADF (Bad file descriptor) [pid 5367] close(29) = -1 EBADF (Bad file descriptor) [pid 5367] exit_group(0) = ? [pid 5367] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=161, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./159/binderfs") = 0 [ 118.078684][ T5367] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./159/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./159/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./159/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./159") = 0 [pid 5039] mkdir("./160", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5369 attached , child_tidptr=0x555555e46650) = 162 [pid 5369] set_robust_list(0x555555e46660, 24) = 0 [pid 5369] chdir("./160") = 0 [pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5369] setpgid(0, 0) = 0 [pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5369] write(3, "1000", 4) = 4 [pid 5369] close(3) = 0 [pid 5369] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5369] memfd_create("syzkaller", 0) = 3 [pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5369] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5369] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5369] close(3) = 0 [pid 5369] mkdir("./file0", 0777) = 0 [ 118.248843][ T5369] loop0: detected capacity change from 0 to 8192 [ 118.259332][ T5369] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.272405][ T5369] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 118.281833][ T5369] REISERFS (device loop0): using ordered data mode [ 118.288387][ T5369] reiserfs: using flush barriers [pid 5369] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5369] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5369] chdir("./file0") = 0 [pid 5369] ioctl(4, LOOP_CLR_FD) = 0 [pid 5369] close(4) = 0 [pid 5369] mkdir(".", 0777) = -1 EEXIST (File exists) [ 118.294932][ T5369] 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 [ 118.311685][ T5369] REISERFS (device loop0): checking transaction log (loop0) [ 118.320168][ T5369] REISERFS (device loop0): Using r5 hash to sort names [ 118.336245][ T5369] reiserfs: enabling write barrier flush mode [pid 5369] mount(NULL, ".", 0x200000c0, 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 5369] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5369] chdir(".") = 0 [pid 5369] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5369] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5369] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5369] close(3) = 0 [pid 5369] close(4) = 0 [pid 5369] close(5) = 0 [pid 5369] close(6) = -1 EBADF (Bad file descriptor) [pid 5369] close(7) = -1 EBADF (Bad file descriptor) [pid 5369] close(8) = -1 EBADF (Bad file descriptor) [pid 5369] close(9) = -1 EBADF (Bad file descriptor) [pid 5369] close(10) = -1 EBADF (Bad file descriptor) [pid 5369] close(11) = -1 EBADF (Bad file descriptor) [pid 5369] close(12) = -1 EBADF (Bad file descriptor) [pid 5369] close(13) = -1 EBADF (Bad file descriptor) [pid 5369] close(14) = -1 EBADF (Bad file descriptor) [pid 5369] close(15) = -1 EBADF (Bad file descriptor) [pid 5369] close(16) = -1 EBADF (Bad file descriptor) [pid 5369] close(17) = -1 EBADF (Bad file descriptor) [pid 5369] close(18) = -1 EBADF (Bad file descriptor) [pid 5369] close(19) = -1 EBADF (Bad file descriptor) [pid 5369] close(20) = -1 EBADF (Bad file descriptor) [pid 5369] close(21) = -1 EBADF (Bad file descriptor) [pid 5369] close(22) = -1 EBADF (Bad file descriptor) [pid 5369] close(23) = -1 EBADF (Bad file descriptor) [pid 5369] close(24) = -1 EBADF (Bad file descriptor) [pid 5369] close(25) = -1 EBADF (Bad file descriptor) [pid 5369] close(26) = -1 EBADF (Bad file descriptor) [pid 5369] close(27) = -1 EBADF (Bad file descriptor) [pid 5369] close(28) = -1 EBADF (Bad file descriptor) [pid 5369] close(29) = -1 EBADF (Bad file descriptor) [pid 5369] exit_group(0) = ? [pid 5369] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=162, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./160/binderfs") = 0 [ 118.347358][ T5369] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./160/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./160/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./160/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./160") = 0 [pid 5039] mkdir("./161", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 163 ./strace-static-x86_64: Process 5371 attached [pid 5371] set_robust_list(0x555555e46660, 24) = 0 [pid 5371] chdir("./161") = 0 [pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5371] setpgid(0, 0) = 0 [pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5371] write(3, "1000", 4) = 4 [pid 5371] close(3) = 0 [pid 5371] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5371] memfd_create("syzkaller", 0) = 3 [pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5371] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5371] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5371] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5371] close(3) = 0 [pid 5371] mkdir("./file0", 0777) = 0 [ 118.521860][ T5371] loop0: detected capacity change from 0 to 8192 [ 118.532652][ T5371] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.545737][ T5371] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 118.555001][ T5371] REISERFS (device loop0): using ordered data mode [ 118.561529][ T5371] reiserfs: using flush barriers [pid 5371] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5371] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5371] chdir("./file0") = 0 [pid 5371] ioctl(4, LOOP_CLR_FD) = 0 [pid 5371] close(4) = 0 [pid 5371] mkdir(".", 0777) = -1 EEXIST (File exists) [ 118.568120][ T5371] 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 [ 118.584626][ T5371] REISERFS (device loop0): checking transaction log (loop0) [ 118.593208][ T5371] REISERFS (device loop0): Using r5 hash to sort names [ 118.613144][ T5371] reiserfs: enabling write barrier flush mode [pid 5371] mount(NULL, ".", 0x200000c0, 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 5371] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5371] chdir(".") = 0 [pid 5371] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5371] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5371] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5371] close(3) = 0 [pid 5371] close(4) = 0 [pid 5371] close(5) = 0 [pid 5371] close(6) = -1 EBADF (Bad file descriptor) [pid 5371] close(7) = -1 EBADF (Bad file descriptor) [pid 5371] close(8) = -1 EBADF (Bad file descriptor) [pid 5371] close(9) = -1 EBADF (Bad file descriptor) [pid 5371] close(10) = -1 EBADF (Bad file descriptor) [pid 5371] close(11) = -1 EBADF (Bad file descriptor) [pid 5371] close(12) = -1 EBADF (Bad file descriptor) [pid 5371] close(13) = -1 EBADF (Bad file descriptor) [pid 5371] close(14) = -1 EBADF (Bad file descriptor) [pid 5371] close(15) = -1 EBADF (Bad file descriptor) [pid 5371] close(16) = -1 EBADF (Bad file descriptor) [pid 5371] close(17) = -1 EBADF (Bad file descriptor) [pid 5371] close(18) = -1 EBADF (Bad file descriptor) [pid 5371] close(19) = -1 EBADF (Bad file descriptor) [pid 5371] close(20) = -1 EBADF (Bad file descriptor) [pid 5371] close(21) = -1 EBADF (Bad file descriptor) [pid 5371] close(22) = -1 EBADF (Bad file descriptor) [pid 5371] close(23) = -1 EBADF (Bad file descriptor) [pid 5371] close(24) = -1 EBADF (Bad file descriptor) [pid 5371] close(25) = -1 EBADF (Bad file descriptor) [pid 5371] close(26) = -1 EBADF (Bad file descriptor) [pid 5371] close(27) = -1 EBADF (Bad file descriptor) [pid 5371] close(28) = -1 EBADF (Bad file descriptor) [pid 5371] close(29) = -1 EBADF (Bad file descriptor) [pid 5371] exit_group(0) = ? [pid 5371] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=163, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./161/binderfs") = 0 [ 118.622894][ T5371] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./161/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./161/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./161") = 0 [pid 5039] mkdir("./162", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5373 attached , child_tidptr=0x555555e46650) = 164 [pid 5373] set_robust_list(0x555555e46660, 24) = 0 [pid 5373] chdir("./162") = 0 [pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5373] setpgid(0, 0) = 0 [pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5373] write(3, "1000", 4) = 4 [pid 5373] close(3) = 0 [pid 5373] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5373] memfd_create("syzkaller", 0) = 3 [pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5373] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5373] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5373] close(3) = 0 [pid 5373] mkdir("./file0", 0777) = 0 [ 118.773170][ T5373] loop0: detected capacity change from 0 to 8192 [ 118.783516][ T5373] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.796673][ T5373] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 118.805933][ T5373] REISERFS (device loop0): using ordered data mode [ 118.812464][ T5373] reiserfs: using flush barriers [pid 5373] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5373] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5373] chdir("./file0") = 0 [pid 5373] ioctl(4, LOOP_CLR_FD) = 0 [pid 5373] close(4) = 0 [pid 5373] mkdir(".", 0777) = -1 EEXIST (File exists) [ 118.819036][ T5373] 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 [ 118.835562][ T5373] REISERFS (device loop0): checking transaction log (loop0) [ 118.843927][ T5373] REISERFS (device loop0): Using r5 hash to sort names [ 118.856695][ T5373] reiserfs: enabling write barrier flush mode [pid 5373] mount(NULL, ".", 0x200000c0, 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 5373] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5373] chdir(".") = 0 [pid 5373] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5373] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5373] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5373] close(3) = 0 [pid 5373] close(4) = 0 [pid 5373] close(5) = 0 [pid 5373] close(6) = -1 EBADF (Bad file descriptor) [pid 5373] close(7) = -1 EBADF (Bad file descriptor) [pid 5373] close(8) = -1 EBADF (Bad file descriptor) [pid 5373] close(9) = -1 EBADF (Bad file descriptor) [pid 5373] close(10) = -1 EBADF (Bad file descriptor) [pid 5373] close(11) = -1 EBADF (Bad file descriptor) [pid 5373] close(12) = -1 EBADF (Bad file descriptor) [pid 5373] close(13) = -1 EBADF (Bad file descriptor) [pid 5373] close(14) = -1 EBADF (Bad file descriptor) [pid 5373] close(15) = -1 EBADF (Bad file descriptor) [pid 5373] close(16) = -1 EBADF (Bad file descriptor) [pid 5373] close(17) = -1 EBADF (Bad file descriptor) [pid 5373] close(18) = -1 EBADF (Bad file descriptor) [pid 5373] close(19) = -1 EBADF (Bad file descriptor) [pid 5373] close(20) = -1 EBADF (Bad file descriptor) [pid 5373] close(21) = -1 EBADF (Bad file descriptor) [pid 5373] close(22) = -1 EBADF (Bad file descriptor) [pid 5373] close(23) = -1 EBADF (Bad file descriptor) [pid 5373] close(24) = -1 EBADF (Bad file descriptor) [pid 5373] close(25) = -1 EBADF (Bad file descriptor) [pid 5373] close(26) = -1 EBADF (Bad file descriptor) [pid 5373] close(27) = -1 EBADF (Bad file descriptor) [pid 5373] close(28) = -1 EBADF (Bad file descriptor) [pid 5373] close(29) = -1 EBADF (Bad file descriptor) [pid 5373] exit_group(0) = ? [pid 5373] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=164, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./162/binderfs") = 0 [ 118.866385][ T5373] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./162/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./162/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./162") = 0 [pid 5039] mkdir("./163", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 165 ./strace-static-x86_64: Process 5375 attached [pid 5375] set_robust_list(0x555555e46660, 24) = 0 [pid 5375] chdir("./163") = 0 [pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5375] setpgid(0, 0) = 0 [pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5375] write(3, "1000", 4) = 4 [pid 5375] close(3) = 0 [pid 5375] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5375] memfd_create("syzkaller", 0) = 3 [pid 5375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5375] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5375] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5375] close(3) = 0 [pid 5375] mkdir("./file0", 0777) = 0 [ 119.032557][ T5375] loop0: detected capacity change from 0 to 8192 [ 119.042993][ T5375] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.056674][ T5375] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 119.066073][ T5375] REISERFS (device loop0): using ordered data mode [ 119.072620][ T5375] reiserfs: using flush barriers [pid 5375] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5375] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5375] chdir("./file0") = 0 [pid 5375] ioctl(4, LOOP_CLR_FD) = 0 [pid 5375] close(4) = 0 [pid 5375] mkdir(".", 0777) = -1 EEXIST (File exists) [ 119.079342][ T5375] 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 [ 119.096125][ T5375] REISERFS (device loop0): checking transaction log (loop0) [ 119.104519][ T5375] REISERFS (device loop0): Using r5 hash to sort names [ 119.115112][ T5375] reiserfs: enabling write barrier flush mode [pid 5375] mount(NULL, ".", 0x200000c0, 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 5375] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5375] chdir(".") = 0 [pid 5375] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5375] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5375] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5375] close(3) = 0 [pid 5375] close(4) = 0 [pid 5375] close(5) = 0 [pid 5375] close(6) = -1 EBADF (Bad file descriptor) [pid 5375] close(7) = -1 EBADF (Bad file descriptor) [pid 5375] close(8) = -1 EBADF (Bad file descriptor) [pid 5375] close(9) = -1 EBADF (Bad file descriptor) [pid 5375] close(10) = -1 EBADF (Bad file descriptor) [pid 5375] close(11) = -1 EBADF (Bad file descriptor) [pid 5375] close(12) = -1 EBADF (Bad file descriptor) [pid 5375] close(13) = -1 EBADF (Bad file descriptor) [pid 5375] close(14) = -1 EBADF (Bad file descriptor) [pid 5375] close(15) = -1 EBADF (Bad file descriptor) [pid 5375] close(16) = -1 EBADF (Bad file descriptor) [pid 5375] close(17) = -1 EBADF (Bad file descriptor) [pid 5375] close(18) = -1 EBADF (Bad file descriptor) [pid 5375] close(19) = -1 EBADF (Bad file descriptor) [pid 5375] close(20) = -1 EBADF (Bad file descriptor) [pid 5375] close(21) = -1 EBADF (Bad file descriptor) [pid 5375] close(22) = -1 EBADF (Bad file descriptor) [pid 5375] close(23) = -1 EBADF (Bad file descriptor) [pid 5375] close(24) = -1 EBADF (Bad file descriptor) [pid 5375] close(25) = -1 EBADF (Bad file descriptor) [pid 5375] close(26) = -1 EBADF (Bad file descriptor) [pid 5375] close(27) = -1 EBADF (Bad file descriptor) [pid 5375] close(28) = -1 EBADF (Bad file descriptor) [pid 5375] close(29) = -1 EBADF (Bad file descriptor) [pid 5375] exit_group(0) = ? [pid 5375] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=165, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./163/binderfs") = 0 [ 119.126892][ T5375] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./163/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./163/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./163") = 0 [pid 5039] mkdir("./164", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5377 attached , child_tidptr=0x555555e46650) = 166 [pid 5377] set_robust_list(0x555555e46660, 24) = 0 [pid 5377] chdir("./164") = 0 [pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5377] setpgid(0, 0) = 0 [pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5377] write(3, "1000", 4) = 4 [pid 5377] close(3) = 0 [pid 5377] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5377] memfd_create("syzkaller", 0) = 3 [pid 5377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5377] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5377] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5377] close(3) = 0 [pid 5377] mkdir("./file0", 0777) = 0 [ 119.305257][ T5377] loop0: detected capacity change from 0 to 8192 [ 119.315560][ T5377] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.328645][ T5377] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 119.338250][ T5377] REISERFS (device loop0): using ordered data mode [ 119.344774][ T5377] reiserfs: using flush barriers [pid 5377] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5377] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5377] chdir("./file0") = 0 [pid 5377] ioctl(4, LOOP_CLR_FD) = 0 [pid 5377] close(4) = 0 [pid 5377] mkdir(".", 0777) = -1 EEXIST (File exists) [ 119.351364][ T5377] 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 [ 119.367952][ T5377] REISERFS (device loop0): checking transaction log (loop0) [ 119.376515][ T5377] REISERFS (device loop0): Using r5 hash to sort names [ 119.387119][ T5377] reiserfs: enabling write barrier flush mode [pid 5377] mount(NULL, ".", 0x200000c0, 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 5377] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5377] chdir(".") = 0 [pid 5377] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5377] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5377] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5377] close(3) = 0 [pid 5377] close(4) = 0 [pid 5377] close(5) = 0 [pid 5377] close(6) = -1 EBADF (Bad file descriptor) [pid 5377] close(7) = -1 EBADF (Bad file descriptor) [pid 5377] close(8) = -1 EBADF (Bad file descriptor) [pid 5377] close(9) = -1 EBADF (Bad file descriptor) [pid 5377] close(10) = -1 EBADF (Bad file descriptor) [pid 5377] close(11) = -1 EBADF (Bad file descriptor) [pid 5377] close(12) = -1 EBADF (Bad file descriptor) [pid 5377] close(13) = -1 EBADF (Bad file descriptor) [pid 5377] close(14) = -1 EBADF (Bad file descriptor) [pid 5377] close(15) = -1 EBADF (Bad file descriptor) [pid 5377] close(16) = -1 EBADF (Bad file descriptor) [pid 5377] close(17) = -1 EBADF (Bad file descriptor) [pid 5377] close(18) = -1 EBADF (Bad file descriptor) [pid 5377] close(19) = -1 EBADF (Bad file descriptor) [pid 5377] close(20) = -1 EBADF (Bad file descriptor) [pid 5377] close(21) = -1 EBADF (Bad file descriptor) [pid 5377] close(22) = -1 EBADF (Bad file descriptor) [pid 5377] close(23) = -1 EBADF (Bad file descriptor) [pid 5377] close(24) = -1 EBADF (Bad file descriptor) [pid 5377] close(25) = -1 EBADF (Bad file descriptor) [pid 5377] close(26) = -1 EBADF (Bad file descriptor) [pid 5377] close(27) = -1 EBADF (Bad file descriptor) [pid 5377] close(28) = -1 EBADF (Bad file descriptor) [pid 5377] close(29) = -1 EBADF (Bad file descriptor) [pid 5377] exit_group(0) = ? [pid 5377] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=166, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5039] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./164/binderfs") = 0 [ 119.397880][ T5377] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./164/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./164/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./164") = 0 [pid 5039] mkdir("./165", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5379 attached , child_tidptr=0x555555e46650) = 167 [pid 5379] set_robust_list(0x555555e46660, 24) = 0 [pid 5379] chdir("./165") = 0 [pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5379] setpgid(0, 0) = 0 [pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5379] write(3, "1000", 4) = 4 [pid 5379] close(3) = 0 [pid 5379] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5379] memfd_create("syzkaller", 0) = 3 [pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5379] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5379] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5379] close(3) = 0 [pid 5379] mkdir("./file0", 0777) = 0 [ 119.546381][ T5379] loop0: detected capacity change from 0 to 8192 [ 119.557197][ T5379] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.570277][ T5379] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 119.579610][ T5379] REISERFS (device loop0): using ordered data mode [ 119.586303][ T5379] reiserfs: using flush barriers [pid 5379] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5379] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5379] chdir("./file0") = 0 [pid 5379] ioctl(4, LOOP_CLR_FD) = 0 [pid 5379] close(4) = 0 [pid 5379] mkdir(".", 0777) = -1 EEXIST (File exists) [ 119.592621][ T5379] 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 [ 119.609566][ T5379] REISERFS (device loop0): checking transaction log (loop0) [ 119.617898][ T5379] REISERFS (device loop0): Using r5 hash to sort names [ 119.628827][ T5379] reiserfs: enabling write barrier flush mode [pid 5379] mount(NULL, ".", 0x200000c0, 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 5379] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5379] chdir(".") = 0 [pid 5379] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5379] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5379] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5379] close(3) = 0 [pid 5379] close(4) = 0 [pid 5379] close(5) = 0 [pid 5379] close(6) = -1 EBADF (Bad file descriptor) [pid 5379] close(7) = -1 EBADF (Bad file descriptor) [pid 5379] close(8) = -1 EBADF (Bad file descriptor) [pid 5379] close(9) = -1 EBADF (Bad file descriptor) [pid 5379] close(10) = -1 EBADF (Bad file descriptor) [pid 5379] close(11) = -1 EBADF (Bad file descriptor) [pid 5379] close(12) = -1 EBADF (Bad file descriptor) [pid 5379] close(13) = -1 EBADF (Bad file descriptor) [pid 5379] close(14) = -1 EBADF (Bad file descriptor) [pid 5379] close(15) = -1 EBADF (Bad file descriptor) [pid 5379] close(16) = -1 EBADF (Bad file descriptor) [pid 5379] close(17) = -1 EBADF (Bad file descriptor) [pid 5379] close(18) = -1 EBADF (Bad file descriptor) [pid 5379] close(19) = -1 EBADF (Bad file descriptor) [pid 5379] close(20) = -1 EBADF (Bad file descriptor) [pid 5379] close(21) = -1 EBADF (Bad file descriptor) [pid 5379] close(22) = -1 EBADF (Bad file descriptor) [pid 5379] close(23) = -1 EBADF (Bad file descriptor) [pid 5379] close(24) = -1 EBADF (Bad file descriptor) [pid 5379] close(25) = -1 EBADF (Bad file descriptor) [pid 5379] close(26) = -1 EBADF (Bad file descriptor) [pid 5379] close(27) = -1 EBADF (Bad file descriptor) [pid 5379] close(28) = -1 EBADF (Bad file descriptor) [pid 5379] close(29) = -1 EBADF (Bad file descriptor) [pid 5379] exit_group(0) = ? [pid 5379] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=167, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./165/binderfs") = 0 [ 119.639125][ T5379] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./165/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./165/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./165/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./165") = 0 [pid 5039] mkdir("./166", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5381 attached , child_tidptr=0x555555e46650) = 168 [pid 5381] set_robust_list(0x555555e46660, 24) = 0 [pid 5381] chdir("./166") = 0 [pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5381] setpgid(0, 0) = 0 [pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5381] write(3, "1000", 4) = 4 [pid 5381] close(3) = 0 [pid 5381] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5381] memfd_create("syzkaller", 0) = 3 [pid 5381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5381] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5381] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5381] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5381] close(3) = 0 [pid 5381] mkdir("./file0", 0777) = 0 [ 119.805631][ T5381] loop0: detected capacity change from 0 to 8192 [ 119.817063][ T5381] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.830174][ T5381] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 119.839461][ T5381] REISERFS (device loop0): using ordered data mode [ 119.846133][ T5381] reiserfs: using flush barriers [pid 5381] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5381] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5381] chdir("./file0") = 0 [pid 5381] ioctl(4, LOOP_CLR_FD) = 0 [pid 5381] close(4) = 0 [pid 5381] mkdir(".", 0777) = -1 EEXIST (File exists) [ 119.852861][ T5381] 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 [ 119.869434][ T5381] REISERFS (device loop0): checking transaction log (loop0) [ 119.878062][ T5381] REISERFS (device loop0): Using r5 hash to sort names [ 119.891317][ T5381] reiserfs: enabling write barrier flush mode [pid 5381] mount(NULL, ".", 0x200000c0, 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 5381] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5381] chdir(".") = 0 [pid 5381] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5381] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5381] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5381] close(3) = 0 [pid 5381] close(4) = 0 [pid 5381] close(5) = 0 [pid 5381] close(6) = -1 EBADF (Bad file descriptor) [pid 5381] close(7) = -1 EBADF (Bad file descriptor) [pid 5381] close(8) = -1 EBADF (Bad file descriptor) [pid 5381] close(9) = -1 EBADF (Bad file descriptor) [pid 5381] close(10) = -1 EBADF (Bad file descriptor) [pid 5381] close(11) = -1 EBADF (Bad file descriptor) [pid 5381] close(12) = -1 EBADF (Bad file descriptor) [pid 5381] close(13) = -1 EBADF (Bad file descriptor) [pid 5381] close(14) = -1 EBADF (Bad file descriptor) [pid 5381] close(15) = -1 EBADF (Bad file descriptor) [pid 5381] close(16) = -1 EBADF (Bad file descriptor) [pid 5381] close(17) = -1 EBADF (Bad file descriptor) [pid 5381] close(18) = -1 EBADF (Bad file descriptor) [pid 5381] close(19) = -1 EBADF (Bad file descriptor) [pid 5381] close(20) = -1 EBADF (Bad file descriptor) [pid 5381] close(21) = -1 EBADF (Bad file descriptor) [pid 5381] close(22) = -1 EBADF (Bad file descriptor) [pid 5381] close(23) = -1 EBADF (Bad file descriptor) [pid 5381] close(24) = -1 EBADF (Bad file descriptor) [pid 5381] close(25) = -1 EBADF (Bad file descriptor) [pid 5381] close(26) = -1 EBADF (Bad file descriptor) [pid 5381] close(27) = -1 EBADF (Bad file descriptor) [pid 5381] close(28) = -1 EBADF (Bad file descriptor) [pid 5381] close(29) = -1 EBADF (Bad file descriptor) [pid 5381] exit_group(0) = ? [pid 5381] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=168, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./166/binderfs") = 0 [ 119.902313][ T5381] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./166/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./166/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./166/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./166") = 0 [pid 5039] mkdir("./167", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 169 ./strace-static-x86_64: Process 5383 attached [pid 5383] set_robust_list(0x555555e46660, 24) = 0 [pid 5383] chdir("./167") = 0 [pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5383] setpgid(0, 0) = 0 [pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5383] write(3, "1000", 4) = 4 [pid 5383] close(3) = 0 [pid 5383] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5383] memfd_create("syzkaller", 0) = 3 [pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5383] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5383] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5383] close(3) = 0 [pid 5383] mkdir("./file0", 0777) = 0 [ 120.058081][ T5383] loop0: detected capacity change from 0 to 8192 [ 120.069284][ T5383] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.082410][ T5383] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 120.092011][ T5383] REISERFS (device loop0): using ordered data mode [ 120.098619][ T5383] reiserfs: using flush barriers [pid 5383] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5383] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5383] chdir("./file0") = 0 [pid 5383] ioctl(4, LOOP_CLR_FD) = 0 [pid 5383] close(4) = 0 [pid 5383] mkdir(".", 0777) = -1 EEXIST (File exists) [ 120.105141][ T5383] 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 [ 120.121940][ T5383] REISERFS (device loop0): checking transaction log (loop0) [ 120.130771][ T5383] REISERFS (device loop0): Using r5 hash to sort names [ 120.145886][ T5383] reiserfs: enabling write barrier flush mode [pid 5383] mount(NULL, ".", 0x200000c0, 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 5383] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5383] chdir(".") = 0 [pid 5383] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5383] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5383] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5383] close(3) = 0 [pid 5383] close(4) = 0 [pid 5383] close(5) = 0 [pid 5383] close(6) = -1 EBADF (Bad file descriptor) [pid 5383] close(7) = -1 EBADF (Bad file descriptor) [pid 5383] close(8) = -1 EBADF (Bad file descriptor) [pid 5383] close(9) = -1 EBADF (Bad file descriptor) [pid 5383] close(10) = -1 EBADF (Bad file descriptor) [pid 5383] close(11) = -1 EBADF (Bad file descriptor) [pid 5383] close(12) = -1 EBADF (Bad file descriptor) [pid 5383] close(13) = -1 EBADF (Bad file descriptor) [pid 5383] close(14) = -1 EBADF (Bad file descriptor) [pid 5383] close(15) = -1 EBADF (Bad file descriptor) [pid 5383] close(16) = -1 EBADF (Bad file descriptor) [pid 5383] close(17) = -1 EBADF (Bad file descriptor) [pid 5383] close(18) = -1 EBADF (Bad file descriptor) [pid 5383] close(19) = -1 EBADF (Bad file descriptor) [pid 5383] close(20) = -1 EBADF (Bad file descriptor) [pid 5383] close(21) = -1 EBADF (Bad file descriptor) [pid 5383] close(22) = -1 EBADF (Bad file descriptor) [pid 5383] close(23) = -1 EBADF (Bad file descriptor) [pid 5383] close(24) = -1 EBADF (Bad file descriptor) [pid 5383] close(25) = -1 EBADF (Bad file descriptor) [pid 5383] close(26) = -1 EBADF (Bad file descriptor) [pid 5383] close(27) = -1 EBADF (Bad file descriptor) [pid 5383] close(28) = -1 EBADF (Bad file descriptor) [pid 5383] close(29) = -1 EBADF (Bad file descriptor) [pid 5383] exit_group(0) = ? [pid 5383] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=169, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./167/binderfs") = 0 [ 120.155478][ T5383] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./167/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./167/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./167") = 0 [pid 5039] mkdir("./168", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5385 attached , child_tidptr=0x555555e46650) = 170 [pid 5385] set_robust_list(0x555555e46660, 24) = 0 [pid 5385] chdir("./168") = 0 [pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5385] setpgid(0, 0) = 0 [pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5385] write(3, "1000", 4) = 4 [pid 5385] close(3) = 0 [pid 5385] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5385] memfd_create("syzkaller", 0) = 3 [pid 5385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5385] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5385] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5385] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5385] close(3) = 0 [pid 5385] mkdir("./file0", 0777) = 0 [ 120.317915][ T5385] loop0: detected capacity change from 0 to 8192 [ 120.328955][ T5385] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.342031][ T5385] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 120.351348][ T5385] REISERFS (device loop0): using ordered data mode [ 120.357908][ T5385] reiserfs: using flush barriers [pid 5385] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5385] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5385] chdir("./file0") = 0 [pid 5385] ioctl(4, LOOP_CLR_FD) = 0 [pid 5385] close(4) = 0 [pid 5385] mkdir(".", 0777) = -1 EEXIST (File exists) [ 120.364105][ T5385] 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 [ 120.380750][ T5385] REISERFS (device loop0): checking transaction log (loop0) [ 120.389156][ T5385] REISERFS (device loop0): Using r5 hash to sort names [ 120.407046][ T5385] reiserfs: enabling write barrier flush mode [pid 5385] mount(NULL, ".", 0x200000c0, 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 5385] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5385] chdir(".") = 0 [pid 5385] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5385] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5385] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5385] close(3) = 0 [pid 5385] close(4) = 0 [pid 5385] close(5) = 0 [pid 5385] close(6) = -1 EBADF (Bad file descriptor) [pid 5385] close(7) = -1 EBADF (Bad file descriptor) [pid 5385] close(8) = -1 EBADF (Bad file descriptor) [pid 5385] close(9) = -1 EBADF (Bad file descriptor) [pid 5385] close(10) = -1 EBADF (Bad file descriptor) [pid 5385] close(11) = -1 EBADF (Bad file descriptor) [pid 5385] close(12) = -1 EBADF (Bad file descriptor) [pid 5385] close(13) = -1 EBADF (Bad file descriptor) [pid 5385] close(14) = -1 EBADF (Bad file descriptor) [pid 5385] close(15) = -1 EBADF (Bad file descriptor) [pid 5385] close(16) = -1 EBADF (Bad file descriptor) [pid 5385] close(17) = -1 EBADF (Bad file descriptor) [pid 5385] close(18) = -1 EBADF (Bad file descriptor) [pid 5385] close(19) = -1 EBADF (Bad file descriptor) [pid 5385] close(20) = -1 EBADF (Bad file descriptor) [pid 5385] close(21) = -1 EBADF (Bad file descriptor) [pid 5385] close(22) = -1 EBADF (Bad file descriptor) [pid 5385] close(23) = -1 EBADF (Bad file descriptor) [pid 5385] close(24) = -1 EBADF (Bad file descriptor) [pid 5385] close(25) = -1 EBADF (Bad file descriptor) [pid 5385] close(26) = -1 EBADF (Bad file descriptor) [pid 5385] close(27) = -1 EBADF (Bad file descriptor) [pid 5385] close(28) = -1 EBADF (Bad file descriptor) [pid 5385] close(29) = -1 EBADF (Bad file descriptor) [pid 5385] exit_group(0) = ? [pid 5385] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=170, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./168/binderfs") = 0 [ 120.422716][ T5385] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./168/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./168/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./168/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./168") = 0 [pid 5039] mkdir("./169", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5387 attached [pid 5387] set_robust_list(0x555555e46660, 24) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 171 [pid 5387] chdir("./169") = 0 [pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5387] setpgid(0, 0) = 0 [pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5387] write(3, "1000", 4) = 4 [pid 5387] close(3) = 0 [pid 5387] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5387] memfd_create("syzkaller", 0) = 3 [pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5387] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5387] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5387] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5387] close(3) = 0 [pid 5387] mkdir("./file0", 0777) = 0 [ 120.579684][ T5387] loop0: detected capacity change from 0 to 8192 [ 120.591587][ T5387] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.605059][ T5387] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 120.614284][ T5387] REISERFS (device loop0): using ordered data mode [ 120.621439][ T5387] reiserfs: using flush barriers [pid 5387] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5387] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5387] chdir("./file0") = 0 [pid 5387] ioctl(4, LOOP_CLR_FD) = 0 [pid 5387] close(4) = 0 [pid 5387] mkdir(".", 0777) = -1 EEXIST (File exists) [ 120.628203][ T5387] 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 [ 120.644926][ T5387] REISERFS (device loop0): checking transaction log (loop0) [ 120.653499][ T5387] REISERFS (device loop0): Using r5 hash to sort names [ 120.665305][ T5387] reiserfs: enabling write barrier flush mode [pid 5387] mount(NULL, ".", 0x200000c0, 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 5387] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5387] chdir(".") = 0 [pid 5387] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5387] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5387] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5387] close(3) = 0 [pid 5387] close(4) = 0 [pid 5387] close(5) = 0 [pid 5387] close(6) = -1 EBADF (Bad file descriptor) [pid 5387] close(7) = -1 EBADF (Bad file descriptor) [pid 5387] close(8) = -1 EBADF (Bad file descriptor) [pid 5387] close(9) = -1 EBADF (Bad file descriptor) [pid 5387] close(10) = -1 EBADF (Bad file descriptor) [pid 5387] close(11) = -1 EBADF (Bad file descriptor) [pid 5387] close(12) = -1 EBADF (Bad file descriptor) [pid 5387] close(13) = -1 EBADF (Bad file descriptor) [pid 5387] close(14) = -1 EBADF (Bad file descriptor) [pid 5387] close(15) = -1 EBADF (Bad file descriptor) [pid 5387] close(16) = -1 EBADF (Bad file descriptor) [pid 5387] close(17) = -1 EBADF (Bad file descriptor) [pid 5387] close(18) = -1 EBADF (Bad file descriptor) [pid 5387] close(19) = -1 EBADF (Bad file descriptor) [pid 5387] close(20) = -1 EBADF (Bad file descriptor) [pid 5387] close(21) = -1 EBADF (Bad file descriptor) [pid 5387] close(22) = -1 EBADF (Bad file descriptor) [pid 5387] close(23) = -1 EBADF (Bad file descriptor) [pid 5387] close(24) = -1 EBADF (Bad file descriptor) [pid 5387] close(25) = -1 EBADF (Bad file descriptor) [pid 5387] close(26) = -1 EBADF (Bad file descriptor) [pid 5387] close(27) = -1 EBADF (Bad file descriptor) [pid 5387] close(28) = -1 EBADF (Bad file descriptor) [pid 5387] close(29) = -1 EBADF (Bad file descriptor) [pid 5387] exit_group(0) = ? [pid 5387] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=171, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./169/binderfs") = 0 [ 120.675223][ T5387] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./169/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./169/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./169/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./169") = 0 [pid 5039] mkdir("./170", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 172 ./strace-static-x86_64: Process 5389 attached [pid 5389] set_robust_list(0x555555e46660, 24) = 0 [pid 5389] chdir("./170") = 0 [pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5389] setpgid(0, 0) = 0 [pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5389] write(3, "1000", 4) = 4 [pid 5389] close(3) = 0 [pid 5389] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5389] memfd_create("syzkaller", 0) = 3 [pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5389] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5389] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5389] close(3) = 0 [pid 5389] mkdir("./file0", 0777) = 0 [ 120.848131][ T5389] loop0: detected capacity change from 0 to 8192 [ 120.859199][ T5389] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.872513][ T5389] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 120.882214][ T5389] REISERFS (device loop0): using ordered data mode [ 120.888983][ T5389] reiserfs: using flush barriers [pid 5389] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5389] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5389] chdir("./file0") = 0 [pid 5389] ioctl(4, LOOP_CLR_FD) = 0 [pid 5389] close(4) = 0 [pid 5389] mkdir(".", 0777) = -1 EEXIST (File exists) [ 120.895429][ T5389] 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 [ 120.912006][ T5389] REISERFS (device loop0): checking transaction log (loop0) [ 120.920321][ T5389] REISERFS (device loop0): Using r5 hash to sort names [ 120.932873][ T5389] reiserfs: enabling write barrier flush mode [pid 5389] mount(NULL, ".", 0x200000c0, 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 5389] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5389] chdir(".") = 0 [pid 5389] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5389] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5389] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5389] close(3) = 0 [pid 5389] close(4) = 0 [pid 5389] close(5) = 0 [pid 5389] close(6) = -1 EBADF (Bad file descriptor) [pid 5389] close(7) = -1 EBADF (Bad file descriptor) [pid 5389] close(8) = -1 EBADF (Bad file descriptor) [pid 5389] close(9) = -1 EBADF (Bad file descriptor) [pid 5389] close(10) = -1 EBADF (Bad file descriptor) [pid 5389] close(11) = -1 EBADF (Bad file descriptor) [pid 5389] close(12) = -1 EBADF (Bad file descriptor) [pid 5389] close(13) = -1 EBADF (Bad file descriptor) [pid 5389] close(14) = -1 EBADF (Bad file descriptor) [pid 5389] close(15) = -1 EBADF (Bad file descriptor) [pid 5389] close(16) = -1 EBADF (Bad file descriptor) [pid 5389] close(17) = -1 EBADF (Bad file descriptor) [pid 5389] close(18) = -1 EBADF (Bad file descriptor) [pid 5389] close(19) = -1 EBADF (Bad file descriptor) [pid 5389] close(20) = -1 EBADF (Bad file descriptor) [pid 5389] close(21) = -1 EBADF (Bad file descriptor) [pid 5389] close(22) = -1 EBADF (Bad file descriptor) [pid 5389] close(23) = -1 EBADF (Bad file descriptor) [pid 5389] close(24) = -1 EBADF (Bad file descriptor) [pid 5389] close(25) = -1 EBADF (Bad file descriptor) [pid 5389] close(26) = -1 EBADF (Bad file descriptor) [pid 5389] close(27) = -1 EBADF (Bad file descriptor) [pid 5389] close(28) = -1 EBADF (Bad file descriptor) [pid 5389] close(29) = -1 EBADF (Bad file descriptor) [pid 5389] exit_group(0) = ? [pid 5389] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=172, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./170/binderfs") = 0 [ 120.943596][ T5389] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./170/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./170/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./170/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./170") = 0 [pid 5039] mkdir("./171", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 173 ./strace-static-x86_64: Process 5391 attached [pid 5391] set_robust_list(0x555555e46660, 24) = 0 [pid 5391] chdir("./171") = 0 [pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5391] setpgid(0, 0) = 0 [pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5391] write(3, "1000", 4) = 4 [pid 5391] close(3) = 0 [pid 5391] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5391] memfd_create("syzkaller", 0) = 3 [pid 5391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5391] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5391] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5391] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5391] close(3) = 0 [pid 5391] mkdir("./file0", 0777) = 0 [ 121.124226][ T5391] loop0: detected capacity change from 0 to 8192 [ 121.134508][ T5391] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.147609][ T5391] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 121.156905][ T5391] REISERFS (device loop0): using ordered data mode [ 121.163415][ T5391] reiserfs: using flush barriers [pid 5391] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5391] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5391] chdir("./file0") = 0 [pid 5391] ioctl(4, LOOP_CLR_FD) = 0 [pid 5391] close(4) = 0 [pid 5391] mkdir(".", 0777) = -1 EEXIST (File exists) [ 121.169949][ T5391] 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 [ 121.186688][ T5391] REISERFS (device loop0): checking transaction log (loop0) [ 121.195373][ T5391] REISERFS (device loop0): Using r5 hash to sort names [ 121.214707][ T5391] reiserfs: enabling write barrier flush mode [pid 5391] mount(NULL, ".", 0x200000c0, 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 5391] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5391] chdir(".") = 0 [pid 5391] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5391] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5391] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5391] close(3) = 0 [pid 5391] close(4) = 0 [pid 5391] close(5) = 0 [pid 5391] close(6) = -1 EBADF (Bad file descriptor) [pid 5391] close(7) = -1 EBADF (Bad file descriptor) [pid 5391] close(8) = -1 EBADF (Bad file descriptor) [pid 5391] close(9) = -1 EBADF (Bad file descriptor) [pid 5391] close(10) = -1 EBADF (Bad file descriptor) [pid 5391] close(11) = -1 EBADF (Bad file descriptor) [pid 5391] close(12) = -1 EBADF (Bad file descriptor) [pid 5391] close(13) = -1 EBADF (Bad file descriptor) [pid 5391] close(14) = -1 EBADF (Bad file descriptor) [pid 5391] close(15) = -1 EBADF (Bad file descriptor) [pid 5391] close(16) = -1 EBADF (Bad file descriptor) [pid 5391] close(17) = -1 EBADF (Bad file descriptor) [pid 5391] close(18) = -1 EBADF (Bad file descriptor) [pid 5391] close(19) = -1 EBADF (Bad file descriptor) [pid 5391] close(20) = -1 EBADF (Bad file descriptor) [pid 5391] close(21) = -1 EBADF (Bad file descriptor) [pid 5391] close(22) = -1 EBADF (Bad file descriptor) [pid 5391] close(23) = -1 EBADF (Bad file descriptor) [pid 5391] close(24) = -1 EBADF (Bad file descriptor) [pid 5391] close(25) = -1 EBADF (Bad file descriptor) [pid 5391] close(26) = -1 EBADF (Bad file descriptor) [pid 5391] close(27) = -1 EBADF (Bad file descriptor) [pid 5391] close(28) = -1 EBADF (Bad file descriptor) [pid 5391] close(29) = -1 EBADF (Bad file descriptor) [pid 5391] exit_group(0) = ? [pid 5391] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=173, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./171/binderfs") = 0 [ 121.226655][ T5391] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./171/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./171/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./171/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./171") = 0 [pid 5039] mkdir("./172", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5393 attached , child_tidptr=0x555555e46650) = 174 [pid 5393] set_robust_list(0x555555e46660, 24) = 0 [pid 5393] chdir("./172") = 0 [pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5393] setpgid(0, 0) = 0 [pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5393] write(3, "1000", 4) = 4 [pid 5393] close(3) = 0 [pid 5393] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5393] memfd_create("syzkaller", 0) = 3 [pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5393] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5393] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5393] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5393] close(3) = 0 [pid 5393] mkdir("./file0", 0777) = 0 [ 121.402636][ T5393] loop0: detected capacity change from 0 to 8192 [ 121.416430][ T5393] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.429485][ T5393] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 121.439086][ T5393] REISERFS (device loop0): using ordered data mode [ 121.445806][ T5393] reiserfs: using flush barriers [pid 5393] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5393] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5393] chdir("./file0") = 0 [pid 5393] ioctl(4, LOOP_CLR_FD) = 0 [pid 5393] close(4) = 0 [pid 5393] mkdir(".", 0777) = -1 EEXIST (File exists) [ 121.452280][ T5393] 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 [ 121.469253][ T5393] REISERFS (device loop0): checking transaction log (loop0) [ 121.477413][ T5393] REISERFS (device loop0): Using r5 hash to sort names [ 121.490363][ T5393] reiserfs: enabling write barrier flush mode [pid 5393] mount(NULL, ".", 0x200000c0, 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 5393] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5393] chdir(".") = 0 [pid 5393] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5393] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5393] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5393] close(3) = 0 [pid 5393] close(4) = 0 [pid 5393] close(5) = 0 [pid 5393] close(6) = -1 EBADF (Bad file descriptor) [pid 5393] close(7) = -1 EBADF (Bad file descriptor) [pid 5393] close(8) = -1 EBADF (Bad file descriptor) [pid 5393] close(9) = -1 EBADF (Bad file descriptor) [pid 5393] close(10) = -1 EBADF (Bad file descriptor) [pid 5393] close(11) = -1 EBADF (Bad file descriptor) [pid 5393] close(12) = -1 EBADF (Bad file descriptor) [pid 5393] close(13) = -1 EBADF (Bad file descriptor) [pid 5393] close(14) = -1 EBADF (Bad file descriptor) [pid 5393] close(15) = -1 EBADF (Bad file descriptor) [pid 5393] close(16) = -1 EBADF (Bad file descriptor) [pid 5393] close(17) = -1 EBADF (Bad file descriptor) [pid 5393] close(18) = -1 EBADF (Bad file descriptor) [pid 5393] close(19) = -1 EBADF (Bad file descriptor) [pid 5393] close(20) = -1 EBADF (Bad file descriptor) [pid 5393] close(21) = -1 EBADF (Bad file descriptor) [pid 5393] close(22) = -1 EBADF (Bad file descriptor) [pid 5393] close(23) = -1 EBADF (Bad file descriptor) [pid 5393] close(24) = -1 EBADF (Bad file descriptor) [pid 5393] close(25) = -1 EBADF (Bad file descriptor) [pid 5393] close(26) = -1 EBADF (Bad file descriptor) [pid 5393] close(27) = -1 EBADF (Bad file descriptor) [pid 5393] close(28) = -1 EBADF (Bad file descriptor) [pid 5393] close(29) = -1 EBADF (Bad file descriptor) [pid 5393] exit_group(0) = ? [pid 5393] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=174, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./172/binderfs") = 0 [ 121.501183][ T5393] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./172/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./172/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./172/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./172") = 0 [pid 5039] mkdir("./173", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 175 ./strace-static-x86_64: Process 5395 attached [pid 5395] set_robust_list(0x555555e46660, 24) = 0 [pid 5395] chdir("./173") = 0 [pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5395] setpgid(0, 0) = 0 [pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5395] write(3, "1000", 4) = 4 [pid 5395] close(3) = 0 [pid 5395] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5395] memfd_create("syzkaller", 0) = 3 [pid 5395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5395] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5395] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5395] close(3) = 0 [pid 5395] mkdir("./file0", 0777) = 0 [ 121.671850][ T5395] loop0: detected capacity change from 0 to 8192 [ 121.682194][ T5395] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.695313][ T5395] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 121.704529][ T5395] REISERFS (device loop0): using ordered data mode [ 121.711108][ T5395] reiserfs: using flush barriers [pid 5395] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5395] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5395] chdir("./file0") = 0 [pid 5395] ioctl(4, LOOP_CLR_FD) = 0 [pid 5395] close(4) = 0 [pid 5395] mkdir(".", 0777) = -1 EEXIST (File exists) [ 121.717549][ T5395] 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 [ 121.734192][ T5395] REISERFS (device loop0): checking transaction log (loop0) [ 121.743054][ T5395] REISERFS (device loop0): Using r5 hash to sort names [ 121.756310][ T5395] reiserfs: enabling write barrier flush mode [pid 5395] mount(NULL, ".", 0x200000c0, 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 5395] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5395] chdir(".") = 0 [pid 5395] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5395] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5395] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5395] close(3) = 0 [pid 5395] close(4) = 0 [pid 5395] close(5) = 0 [pid 5395] close(6) = -1 EBADF (Bad file descriptor) [pid 5395] close(7) = -1 EBADF (Bad file descriptor) [pid 5395] close(8) = -1 EBADF (Bad file descriptor) [pid 5395] close(9) = -1 EBADF (Bad file descriptor) [pid 5395] close(10) = -1 EBADF (Bad file descriptor) [pid 5395] close(11) = -1 EBADF (Bad file descriptor) [pid 5395] close(12) = -1 EBADF (Bad file descriptor) [pid 5395] close(13) = -1 EBADF (Bad file descriptor) [pid 5395] close(14) = -1 EBADF (Bad file descriptor) [pid 5395] close(15) = -1 EBADF (Bad file descriptor) [pid 5395] close(16) = -1 EBADF (Bad file descriptor) [pid 5395] close(17) = -1 EBADF (Bad file descriptor) [pid 5395] close(18) = -1 EBADF (Bad file descriptor) [pid 5395] close(19) = -1 EBADF (Bad file descriptor) [pid 5395] close(20) = -1 EBADF (Bad file descriptor) [pid 5395] close(21) = -1 EBADF (Bad file descriptor) [pid 5395] close(22) = -1 EBADF (Bad file descriptor) [pid 5395] close(23) = -1 EBADF (Bad file descriptor) [pid 5395] close(24) = -1 EBADF (Bad file descriptor) [pid 5395] close(25) = -1 EBADF (Bad file descriptor) [pid 5395] close(26) = -1 EBADF (Bad file descriptor) [pid 5395] close(27) = -1 EBADF (Bad file descriptor) [pid 5395] close(28) = -1 EBADF (Bad file descriptor) [pid 5395] close(29) = -1 EBADF (Bad file descriptor) [pid 5395] exit_group(0) = ? [pid 5395] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=175, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./173/binderfs") = 0 [ 121.768424][ T5395] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./173/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./173/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./173/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./173") = 0 [pid 5039] mkdir("./174", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5397 attached [pid 5397] set_robust_list(0x555555e46660, 24) = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 176 [pid 5397] chdir("./174") = 0 [pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5397] setpgid(0, 0) = 0 [pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5397] write(3, "1000", 4) = 4 [pid 5397] close(3) = 0 [pid 5397] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5397] memfd_create("syzkaller", 0) = 3 [pid 5397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5397] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5397] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5397] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5397] close(3) = 0 [pid 5397] mkdir("./file0", 0777) = 0 [ 121.940660][ T5397] loop0: detected capacity change from 0 to 8192 [ 121.951722][ T5397] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.964766][ T5397] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 121.974248][ T5397] REISERFS (device loop0): using ordered data mode [ 121.980857][ T5397] reiserfs: using flush barriers [pid 5397] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5397] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5397] chdir("./file0") = 0 [pid 5397] ioctl(4, LOOP_CLR_FD) = 0 [pid 5397] close(4) = 0 [pid 5397] mkdir(".", 0777) = -1 EEXIST (File exists) [ 121.987329][ T5397] 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 [ 122.003917][ T5397] REISERFS (device loop0): checking transaction log (loop0) [ 122.012303][ T5397] REISERFS (device loop0): Using r5 hash to sort names [ 122.026215][ T5397] reiserfs: enabling write barrier flush mode [pid 5397] mount(NULL, ".", 0x200000c0, 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 5397] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5397] chdir(".") = 0 [pid 5397] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5397] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5397] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5397] close(3) = 0 [pid 5397] close(4) = 0 [pid 5397] close(5) = 0 [pid 5397] close(6) = -1 EBADF (Bad file descriptor) [pid 5397] close(7) = -1 EBADF (Bad file descriptor) [pid 5397] close(8) = -1 EBADF (Bad file descriptor) [pid 5397] close(9) = -1 EBADF (Bad file descriptor) [pid 5397] close(10) = -1 EBADF (Bad file descriptor) [pid 5397] close(11) = -1 EBADF (Bad file descriptor) [pid 5397] close(12) = -1 EBADF (Bad file descriptor) [pid 5397] close(13) = -1 EBADF (Bad file descriptor) [pid 5397] close(14) = -1 EBADF (Bad file descriptor) [pid 5397] close(15) = -1 EBADF (Bad file descriptor) [pid 5397] close(16) = -1 EBADF (Bad file descriptor) [pid 5397] close(17) = -1 EBADF (Bad file descriptor) [pid 5397] close(18) = -1 EBADF (Bad file descriptor) [pid 5397] close(19) = -1 EBADF (Bad file descriptor) [pid 5397] close(20) = -1 EBADF (Bad file descriptor) [pid 5397] close(21) = -1 EBADF (Bad file descriptor) [pid 5397] close(22) = -1 EBADF (Bad file descriptor) [pid 5397] close(23) = -1 EBADF (Bad file descriptor) [pid 5397] close(24) = -1 EBADF (Bad file descriptor) [pid 5397] close(25) = -1 EBADF (Bad file descriptor) [pid 5397] close(26) = -1 EBADF (Bad file descriptor) [pid 5397] close(27) = -1 EBADF (Bad file descriptor) [pid 5397] close(28) = -1 EBADF (Bad file descriptor) [pid 5397] close(29) = -1 EBADF (Bad file descriptor) [pid 5397] exit_group(0) = ? [pid 5397] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=176, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./174/binderfs") = 0 [ 122.035618][ T5397] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./174/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./174/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./174/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./174") = 0 [pid 5039] mkdir("./175", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5399 attached , child_tidptr=0x555555e46650) = 177 [pid 5399] set_robust_list(0x555555e46660, 24) = 0 [pid 5399] chdir("./175") = 0 [pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5399] setpgid(0, 0) = 0 [pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5399] write(3, "1000", 4) = 4 [pid 5399] close(3) = 0 [pid 5399] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5399] memfd_create("syzkaller", 0) = 3 [pid 5399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5399] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5399] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5399] close(3) = 0 [pid 5399] mkdir("./file0", 0777) = 0 [ 122.197474][ T5399] loop0: detected capacity change from 0 to 8192 [ 122.207889][ T5399] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.221147][ T5399] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 122.230820][ T5399] REISERFS (device loop0): using ordered data mode [ 122.237686][ T5399] reiserfs: using flush barriers [pid 5399] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5399] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5399] chdir("./file0") = 0 [pid 5399] ioctl(4, LOOP_CLR_FD) = 0 [pid 5399] close(4) = 0 [pid 5399] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5399] mount(NULL, ".", 0x200000c0, 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 5399] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5399] chdir(".") = 0 [pid 5399] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5399] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5399] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5399] close(3) = 0 [pid 5399] close(4) = 0 [pid 5399] close(5) = 0 [pid 5399] close(6) = -1 EBADF (Bad file descriptor) [pid 5399] close(7) = -1 EBADF (Bad file descriptor) [pid 5399] close(8) = -1 EBADF (Bad file descriptor) [pid 5399] close(9) = -1 EBADF (Bad file descriptor) [pid 5399] close(10) = -1 EBADF (Bad file descriptor) [pid 5399] close(11) = -1 EBADF (Bad file descriptor) [pid 5399] close(12) = -1 EBADF (Bad file descriptor) [pid 5399] close(13) = -1 EBADF (Bad file descriptor) [pid 5399] close(14) = -1 EBADF (Bad file descriptor) [pid 5399] close(15) = -1 EBADF (Bad file descriptor) [pid 5399] close(16) = -1 EBADF (Bad file descriptor) [pid 5399] close(17) = -1 EBADF (Bad file descriptor) [pid 5399] close(18) = -1 EBADF (Bad file descriptor) [pid 5399] close(19) = -1 EBADF (Bad file descriptor) [pid 5399] close(20) = -1 EBADF (Bad file descriptor) [pid 5399] close(21) = -1 EBADF (Bad file descriptor) [pid 5399] close(22) = -1 EBADF (Bad file descriptor) [pid 5399] close(23) = -1 EBADF (Bad file descriptor) [pid 5399] close(24) = -1 EBADF (Bad file descriptor) [pid 5399] close(25) = -1 EBADF (Bad file descriptor) [pid 5399] close(26) = -1 EBADF (Bad file descriptor) [pid 5399] close(27) = -1 EBADF (Bad file descriptor) [pid 5399] close(28) = -1 EBADF (Bad file descriptor) [pid 5399] close(29) = -1 EBADF (Bad file descriptor) [pid 5399] exit_group(0) = ? [pid 5399] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=177, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./175/binderfs") = 0 [ 122.244444][ T5399] 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 [ 122.261424][ T5399] REISERFS (device loop0): checking transaction log (loop0) [ 122.269999][ T5399] REISERFS (device loop0): Using r5 hash to sort names [ 122.279787][ T5399] reiserfs: enabling write barrier flush mode [ 122.288831][ T5399] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./175/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./175/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./175") = 0 [pid 5039] mkdir("./176", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5401 attached [pid 5401] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 178 [pid 5401] <... set_robust_list resumed>) = 0 [pid 5401] chdir("./176") = 0 [pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5401] setpgid(0, 0) = 0 [pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5401] write(3, "1000", 4) = 4 [pid 5401] close(3) = 0 [pid 5401] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5401] memfd_create("syzkaller", 0) = 3 [pid 5401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5401] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5401] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5401] close(3) = 0 [pid 5401] mkdir("./file0", 0777) = 0 [ 122.454027][ T5401] loop0: detected capacity change from 0 to 8192 [ 122.465207][ T5401] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.478314][ T5401] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 122.487621][ T5401] REISERFS (device loop0): using ordered data mode [ 122.494164][ T5401] reiserfs: using flush barriers [pid 5401] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5401] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5401] chdir("./file0") = 0 [pid 5401] ioctl(4, LOOP_CLR_FD) = 0 [pid 5401] close(4) = 0 [pid 5401] mkdir(".", 0777) = -1 EEXIST (File exists) [ 122.500675][ T5401] 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 [ 122.517236][ T5401] REISERFS (device loop0): checking transaction log (loop0) [ 122.525743][ T5401] REISERFS (device loop0): Using r5 hash to sort names [ 122.536949][ T5401] reiserfs: enabling write barrier flush mode [pid 5401] mount(NULL, ".", 0x200000c0, 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 5401] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5401] chdir(".") = 0 [pid 5401] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5401] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5401] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5401] close(3) = 0 [pid 5401] close(4) = 0 [pid 5401] close(5) = 0 [pid 5401] close(6) = -1 EBADF (Bad file descriptor) [pid 5401] close(7) = -1 EBADF (Bad file descriptor) [pid 5401] close(8) = -1 EBADF (Bad file descriptor) [pid 5401] close(9) = -1 EBADF (Bad file descriptor) [pid 5401] close(10) = -1 EBADF (Bad file descriptor) [pid 5401] close(11) = -1 EBADF (Bad file descriptor) [pid 5401] close(12) = -1 EBADF (Bad file descriptor) [pid 5401] close(13) = -1 EBADF (Bad file descriptor) [pid 5401] close(14) = -1 EBADF (Bad file descriptor) [pid 5401] close(15) = -1 EBADF (Bad file descriptor) [pid 5401] close(16) = -1 EBADF (Bad file descriptor) [pid 5401] close(17) = -1 EBADF (Bad file descriptor) [pid 5401] close(18) = -1 EBADF (Bad file descriptor) [pid 5401] close(19) = -1 EBADF (Bad file descriptor) [pid 5401] close(20) = -1 EBADF (Bad file descriptor) [pid 5401] close(21) = -1 EBADF (Bad file descriptor) [pid 5401] close(22) = -1 EBADF (Bad file descriptor) [pid 5401] close(23) = -1 EBADF (Bad file descriptor) [pid 5401] close(24) = -1 EBADF (Bad file descriptor) [pid 5401] close(25) = -1 EBADF (Bad file descriptor) [pid 5401] close(26) = -1 EBADF (Bad file descriptor) [pid 5401] close(27) = -1 EBADF (Bad file descriptor) [pid 5401] close(28) = -1 EBADF (Bad file descriptor) [pid 5401] close(29) = -1 EBADF (Bad file descriptor) [pid 5401] exit_group(0) = ? [pid 5401] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=178, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./176/binderfs") = 0 [ 122.547019][ T5401] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./176/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./176/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./176") = 0 [pid 5039] mkdir("./177", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5403 attached , child_tidptr=0x555555e46650) = 179 [pid 5403] set_robust_list(0x555555e46660, 24) = 0 [pid 5403] chdir("./177") = 0 [pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5403] setpgid(0, 0) = 0 [pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5403] write(3, "1000", 4) = 4 [pid 5403] close(3) = 0 [pid 5403] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5403] memfd_create("syzkaller", 0) = 3 [pid 5403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5403] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5403] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5403] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5403] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5403] close(3) = 0 [pid 5403] mkdir("./file0", 0777) = 0 [ 122.721049][ T5403] loop0: detected capacity change from 0 to 8192 [ 122.732612][ T5403] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.745728][ T5403] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 122.755529][ T5403] REISERFS (device loop0): using ordered data mode [ 122.762457][ T5403] reiserfs: using flush barriers [pid 5403] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5403] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5403] chdir("./file0") = 0 [pid 5403] ioctl(4, LOOP_CLR_FD) = 0 [pid 5403] close(4) = 0 [pid 5403] mkdir(".", 0777) = -1 EEXIST (File exists) [ 122.769048][ T5403] 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 [ 122.785948][ T5403] REISERFS (device loop0): checking transaction log (loop0) [ 122.793991][ T5403] REISERFS (device loop0): Using r5 hash to sort names [ 122.806268][ T5403] reiserfs: enabling write barrier flush mode [pid 5403] mount(NULL, ".", 0x200000c0, 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 5403] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5403] chdir(".") = 0 [pid 5403] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5403] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5403] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5403] close(3) = 0 [pid 5403] close(4) = 0 [pid 5403] close(5) = 0 [pid 5403] close(6) = -1 EBADF (Bad file descriptor) [pid 5403] close(7) = -1 EBADF (Bad file descriptor) [pid 5403] close(8) = -1 EBADF (Bad file descriptor) [pid 5403] close(9) = -1 EBADF (Bad file descriptor) [pid 5403] close(10) = -1 EBADF (Bad file descriptor) [pid 5403] close(11) = -1 EBADF (Bad file descriptor) [pid 5403] close(12) = -1 EBADF (Bad file descriptor) [pid 5403] close(13) = -1 EBADF (Bad file descriptor) [pid 5403] close(14) = -1 EBADF (Bad file descriptor) [pid 5403] close(15) = -1 EBADF (Bad file descriptor) [pid 5403] close(16) = -1 EBADF (Bad file descriptor) [pid 5403] close(17) = -1 EBADF (Bad file descriptor) [pid 5403] close(18) = -1 EBADF (Bad file descriptor) [pid 5403] close(19) = -1 EBADF (Bad file descriptor) [pid 5403] close(20) = -1 EBADF (Bad file descriptor) [pid 5403] close(21) = -1 EBADF (Bad file descriptor) [pid 5403] close(22) = -1 EBADF (Bad file descriptor) [pid 5403] close(23) = -1 EBADF (Bad file descriptor) [pid 5403] close(24) = -1 EBADF (Bad file descriptor) [pid 5403] close(25) = -1 EBADF (Bad file descriptor) [pid 5403] close(26) = -1 EBADF (Bad file descriptor) [pid 5403] close(27) = -1 EBADF (Bad file descriptor) [pid 5403] close(28) = -1 EBADF (Bad file descriptor) [pid 5403] close(29) = -1 EBADF (Bad file descriptor) [pid 5403] exit_group(0) = ? [pid 5403] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=179, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [ 122.815646][ T5403] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./177/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./177/binderfs") = 0 [pid 5039] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./177/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./177/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./177") = 0 [pid 5039] mkdir("./178", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5405 attached , child_tidptr=0x555555e46650) = 180 [pid 5405] set_robust_list(0x555555e46660, 24) = 0 [pid 5405] chdir("./178") = 0 [pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5405] setpgid(0, 0) = 0 [pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5405] write(3, "1000", 4) = 4 [pid 5405] close(3) = 0 [pid 5405] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5405] memfd_create("syzkaller", 0) = 3 [pid 5405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5405] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5405] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5405] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5405] close(3) = 0 [pid 5405] mkdir("./file0", 0777) = 0 [ 122.987730][ T5405] loop0: detected capacity change from 0 to 8192 [ 122.998481][ T5405] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.012173][ T5405] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 123.021783][ T5405] REISERFS (device loop0): using ordered data mode [ 123.028798][ T5405] reiserfs: using flush barriers [pid 5405] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5405] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5405] chdir("./file0") = 0 [pid 5405] ioctl(4, LOOP_CLR_FD) = 0 [pid 5405] close(4) = 0 [pid 5405] mkdir(".", 0777) = -1 EEXIST (File exists) [ 123.035235][ T5405] 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 [ 123.051996][ T5405] REISERFS (device loop0): checking transaction log (loop0) [ 123.060568][ T5405] REISERFS (device loop0): Using r5 hash to sort names [ 123.076908][ T5405] reiserfs: enabling write barrier flush mode [pid 5405] mount(NULL, ".", 0x200000c0, 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 5405] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5405] chdir(".") = 0 [pid 5405] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5405] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5405] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5405] close(3) = 0 [pid 5405] close(4) = 0 [pid 5405] close(5) = 0 [pid 5405] close(6) = -1 EBADF (Bad file descriptor) [pid 5405] close(7) = -1 EBADF (Bad file descriptor) [pid 5405] close(8) = -1 EBADF (Bad file descriptor) [pid 5405] close(9) = -1 EBADF (Bad file descriptor) [pid 5405] close(10) = -1 EBADF (Bad file descriptor) [pid 5405] close(11) = -1 EBADF (Bad file descriptor) [pid 5405] close(12) = -1 EBADF (Bad file descriptor) [pid 5405] close(13) = -1 EBADF (Bad file descriptor) [pid 5405] close(14) = -1 EBADF (Bad file descriptor) [pid 5405] close(15) = -1 EBADF (Bad file descriptor) [pid 5405] close(16) = -1 EBADF (Bad file descriptor) [pid 5405] close(17) = -1 EBADF (Bad file descriptor) [pid 5405] close(18) = -1 EBADF (Bad file descriptor) [pid 5405] close(19) = -1 EBADF (Bad file descriptor) [pid 5405] close(20) = -1 EBADF (Bad file descriptor) [pid 5405] close(21) = -1 EBADF (Bad file descriptor) [pid 5405] close(22) = -1 EBADF (Bad file descriptor) [pid 5405] close(23) = -1 EBADF (Bad file descriptor) [pid 5405] close(24) = -1 EBADF (Bad file descriptor) [pid 5405] close(25) = -1 EBADF (Bad file descriptor) [pid 5405] close(26) = -1 EBADF (Bad file descriptor) [pid 5405] close(27) = -1 EBADF (Bad file descriptor) [pid 5405] close(28) = -1 EBADF (Bad file descriptor) [pid 5405] close(29) = -1 EBADF (Bad file descriptor) [pid 5405] exit_group(0) = ? [pid 5405] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=180, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./178/binderfs") = 0 [ 123.088853][ T5405] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./178/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./178/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./178") = 0 [pid 5039] mkdir("./179", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5407 attached , child_tidptr=0x555555e46650) = 181 [pid 5407] set_robust_list(0x555555e46660, 24) = 0 [pid 5407] chdir("./179") = 0 [pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5407] setpgid(0, 0) = 0 [pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5407] write(3, "1000", 4) = 4 [pid 5407] close(3) = 0 [pid 5407] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5407] memfd_create("syzkaller", 0) = 3 [pid 5407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5407] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5407] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5407] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5407] close(3) = 0 [pid 5407] mkdir("./file0", 0777) = 0 [ 123.252589][ T5407] loop0: detected capacity change from 0 to 8192 [ 123.263276][ T5407] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.276402][ T5407] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 123.285806][ T5407] REISERFS (device loop0): using ordered data mode [ 123.292335][ T5407] reiserfs: using flush barriers [pid 5407] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5407] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5407] chdir("./file0") = 0 [pid 5407] ioctl(4, LOOP_CLR_FD) = 0 [pid 5407] close(4) = 0 [pid 5407] mkdir(".", 0777) = -1 EEXIST (File exists) [ 123.298887][ T5407] 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 [ 123.315592][ T5407] REISERFS (device loop0): checking transaction log (loop0) [ 123.323833][ T5407] REISERFS (device loop0): Using r5 hash to sort names [ 123.336039][ T5407] reiserfs: enabling write barrier flush mode [pid 5407] mount(NULL, ".", 0x200000c0, 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 5407] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5407] chdir(".") = 0 [pid 5407] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5407] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5407] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5407] close(3) = 0 [pid 5407] close(4) = 0 [pid 5407] close(5) = 0 [pid 5407] close(6) = -1 EBADF (Bad file descriptor) [pid 5407] close(7) = -1 EBADF (Bad file descriptor) [pid 5407] close(8) = -1 EBADF (Bad file descriptor) [pid 5407] close(9) = -1 EBADF (Bad file descriptor) [pid 5407] close(10) = -1 EBADF (Bad file descriptor) [pid 5407] close(11) = -1 EBADF (Bad file descriptor) [pid 5407] close(12) = -1 EBADF (Bad file descriptor) [pid 5407] close(13) = -1 EBADF (Bad file descriptor) [pid 5407] close(14) = -1 EBADF (Bad file descriptor) [pid 5407] close(15) = -1 EBADF (Bad file descriptor) [pid 5407] close(16) = -1 EBADF (Bad file descriptor) [pid 5407] close(17) = -1 EBADF (Bad file descriptor) [pid 5407] close(18) = -1 EBADF (Bad file descriptor) [pid 5407] close(19) = -1 EBADF (Bad file descriptor) [pid 5407] close(20) = -1 EBADF (Bad file descriptor) [pid 5407] close(21) = -1 EBADF (Bad file descriptor) [pid 5407] close(22) = -1 EBADF (Bad file descriptor) [pid 5407] close(23) = -1 EBADF (Bad file descriptor) [pid 5407] close(24) = -1 EBADF (Bad file descriptor) [pid 5407] close(25) = -1 EBADF (Bad file descriptor) [pid 5407] close(26) = -1 EBADF (Bad file descriptor) [pid 5407] close(27) = -1 EBADF (Bad file descriptor) [pid 5407] close(28) = -1 EBADF (Bad file descriptor) [pid 5407] close(29) = -1 EBADF (Bad file descriptor) [pid 5407] exit_group(0) = ? [pid 5407] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=181, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./179/binderfs") = 0 [ 123.348150][ T5407] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./179/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./179/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./179/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./179") = 0 [pid 5039] mkdir("./180", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 182 ./strace-static-x86_64: Process 5409 attached [pid 5409] set_robust_list(0x555555e46660, 24) = 0 [pid 5409] chdir("./180") = 0 [pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5409] setpgid(0, 0) = 0 [pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5409] write(3, "1000", 4) = 4 [pid 5409] close(3) = 0 [pid 5409] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5409] memfd_create("syzkaller", 0) = 3 [pid 5409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5409] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5409] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5409] close(3) = 0 [pid 5409] mkdir("./file0", 0777) = 0 [ 123.532219][ T5409] loop0: detected capacity change from 0 to 8192 [ 123.543072][ T5409] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.556129][ T5409] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 123.565523][ T5409] REISERFS (device loop0): using ordered data mode [ 123.572058][ T5409] reiserfs: using flush barriers [pid 5409] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5409] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5409] chdir("./file0") = 0 [pid 5409] ioctl(4, LOOP_CLR_FD) = 0 [pid 5409] close(4) = 0 [pid 5409] mkdir(".", 0777) = -1 EEXIST (File exists) [ 123.578713][ T5409] 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 [ 123.595405][ T5409] REISERFS (device loop0): checking transaction log (loop0) [ 123.603754][ T5409] REISERFS (device loop0): Using r5 hash to sort names [ 123.616523][ T5409] reiserfs: enabling write barrier flush mode [pid 5409] mount(NULL, ".", 0x200000c0, 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 5409] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5409] chdir(".") = 0 [pid 5409] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5409] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5409] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5409] close(3) = 0 [pid 5409] close(4) = 0 [pid 5409] close(5) = 0 [pid 5409] close(6) = -1 EBADF (Bad file descriptor) [pid 5409] close(7) = -1 EBADF (Bad file descriptor) [pid 5409] close(8) = -1 EBADF (Bad file descriptor) [pid 5409] close(9) = -1 EBADF (Bad file descriptor) [pid 5409] close(10) = -1 EBADF (Bad file descriptor) [pid 5409] close(11) = -1 EBADF (Bad file descriptor) [pid 5409] close(12) = -1 EBADF (Bad file descriptor) [pid 5409] close(13) = -1 EBADF (Bad file descriptor) [pid 5409] close(14) = -1 EBADF (Bad file descriptor) [pid 5409] close(15) = -1 EBADF (Bad file descriptor) [pid 5409] close(16) = -1 EBADF (Bad file descriptor) [pid 5409] close(17) = -1 EBADF (Bad file descriptor) [pid 5409] close(18) = -1 EBADF (Bad file descriptor) [pid 5409] close(19) = -1 EBADF (Bad file descriptor) [pid 5409] close(20) = -1 EBADF (Bad file descriptor) [pid 5409] close(21) = -1 EBADF (Bad file descriptor) [pid 5409] close(22) = -1 EBADF (Bad file descriptor) [pid 5409] close(23) = -1 EBADF (Bad file descriptor) [pid 5409] close(24) = -1 EBADF (Bad file descriptor) [pid 5409] close(25) = -1 EBADF (Bad file descriptor) [pid 5409] close(26) = -1 EBADF (Bad file descriptor) [pid 5409] close(27) = -1 EBADF (Bad file descriptor) [pid 5409] close(28) = -1 EBADF (Bad file descriptor) [pid 5409] close(29) = -1 EBADF (Bad file descriptor) [pid 5409] exit_group(0) = ? [pid 5409] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=182, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 123.626121][ T5409] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./180/binderfs") = 0 [pid 5039] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./180/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./180/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./180/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./180") = 0 [pid 5039] mkdir("./181", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 183 ./strace-static-x86_64: Process 5411 attached [pid 5411] set_robust_list(0x555555e46660, 24) = 0 [pid 5411] chdir("./181") = 0 [pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5411] setpgid(0, 0) = 0 [pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5411] write(3, "1000", 4) = 4 [pid 5411] close(3) = 0 [pid 5411] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5411] memfd_create("syzkaller", 0) = 3 [pid 5411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5411] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5411] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5411] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5411] close(3) = 0 [pid 5411] mkdir("./file0", 0777) = 0 [ 123.804093][ T5411] loop0: detected capacity change from 0 to 8192 [ 123.814482][ T5411] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.827648][ T5411] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 123.836930][ T5411] REISERFS (device loop0): using ordered data mode [ 123.843446][ T5411] reiserfs: using flush barriers [pid 5411] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5411] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5411] chdir("./file0") = 0 [pid 5411] ioctl(4, LOOP_CLR_FD) = 0 [pid 5411] close(4) = 0 [pid 5411] mkdir(".", 0777) = -1 EEXIST (File exists) [ 123.850095][ T5411] 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 [ 123.866811][ T5411] REISERFS (device loop0): checking transaction log (loop0) [ 123.875316][ T5411] REISERFS (device loop0): Using r5 hash to sort names [ 123.896056][ T5411] reiserfs: enabling write barrier flush mode [pid 5411] mount(NULL, ".", 0x200000c0, 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 5411] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5411] chdir(".") = 0 [pid 5411] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5411] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5411] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5411] close(3) = 0 [pid 5411] close(4) = 0 [pid 5411] close(5) = 0 [pid 5411] close(6) = -1 EBADF (Bad file descriptor) [pid 5411] close(7) = -1 EBADF (Bad file descriptor) [pid 5411] close(8) = -1 EBADF (Bad file descriptor) [pid 5411] close(9) = -1 EBADF (Bad file descriptor) [pid 5411] close(10) = -1 EBADF (Bad file descriptor) [pid 5411] close(11) = -1 EBADF (Bad file descriptor) [pid 5411] close(12) = -1 EBADF (Bad file descriptor) [pid 5411] close(13) = -1 EBADF (Bad file descriptor) [pid 5411] close(14) = -1 EBADF (Bad file descriptor) [pid 5411] close(15) = -1 EBADF (Bad file descriptor) [pid 5411] close(16) = -1 EBADF (Bad file descriptor) [pid 5411] close(17) = -1 EBADF (Bad file descriptor) [pid 5411] close(18) = -1 EBADF (Bad file descriptor) [pid 5411] close(19) = -1 EBADF (Bad file descriptor) [pid 5411] close(20) = -1 EBADF (Bad file descriptor) [pid 5411] close(21) = -1 EBADF (Bad file descriptor) [pid 5411] close(22) = -1 EBADF (Bad file descriptor) [pid 5411] close(23) = -1 EBADF (Bad file descriptor) [pid 5411] close(24) = -1 EBADF (Bad file descriptor) [pid 5411] close(25) = -1 EBADF (Bad file descriptor) [pid 5411] close(26) = -1 EBADF (Bad file descriptor) [pid 5411] close(27) = -1 EBADF (Bad file descriptor) [pid 5411] close(28) = -1 EBADF (Bad file descriptor) [pid 5411] close(29) = -1 EBADF (Bad file descriptor) [pid 5411] exit_group(0) = ? [pid 5411] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=183, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5039] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./181/binderfs") = 0 [ 123.905987][ T5411] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./181/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./181/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./181/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./181") = 0 [pid 5039] mkdir("./182", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5413 attached , child_tidptr=0x555555e46650) = 184 [pid 5413] set_robust_list(0x555555e46660, 24) = 0 [pid 5413] chdir("./182") = 0 [pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5413] setpgid(0, 0) = 0 [pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5413] write(3, "1000", 4) = 4 [pid 5413] close(3) = 0 [pid 5413] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5413] memfd_create("syzkaller", 0) = 3 [pid 5413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5413] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5413] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5413] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5413] close(3) = 0 [pid 5413] mkdir("./file0", 0777) = 0 [ 124.061524][ T5413] loop0: detected capacity change from 0 to 8192 [ 124.072471][ T5413] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.085615][ T5413] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 124.095000][ T5413] REISERFS (device loop0): using ordered data mode [ 124.101545][ T5413] reiserfs: using flush barriers [pid 5413] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5413] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5413] chdir("./file0") = 0 [pid 5413] ioctl(4, LOOP_CLR_FD) = 0 [pid 5413] close(4) = 0 [pid 5413] mkdir(".", 0777) = -1 EEXIST (File exists) [ 124.108147][ T5413] 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 [ 124.125020][ T5413] REISERFS (device loop0): checking transaction log (loop0) [ 124.133359][ T5413] REISERFS (device loop0): Using r5 hash to sort names [ 124.146182][ T5413] reiserfs: enabling write barrier flush mode [pid 5413] mount(NULL, ".", 0x200000c0, 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 5413] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5413] chdir(".") = 0 [pid 5413] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5413] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5413] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5413] close(3) = 0 [pid 5413] close(4) = 0 [pid 5413] close(5) = 0 [pid 5413] close(6) = -1 EBADF (Bad file descriptor) [pid 5413] close(7) = -1 EBADF (Bad file descriptor) [pid 5413] close(8) = -1 EBADF (Bad file descriptor) [pid 5413] close(9) = -1 EBADF (Bad file descriptor) [pid 5413] close(10) = -1 EBADF (Bad file descriptor) [pid 5413] close(11) = -1 EBADF (Bad file descriptor) [pid 5413] close(12) = -1 EBADF (Bad file descriptor) [pid 5413] close(13) = -1 EBADF (Bad file descriptor) [pid 5413] close(14) = -1 EBADF (Bad file descriptor) [pid 5413] close(15) = -1 EBADF (Bad file descriptor) [pid 5413] close(16) = -1 EBADF (Bad file descriptor) [pid 5413] close(17) = -1 EBADF (Bad file descriptor) [pid 5413] close(18) = -1 EBADF (Bad file descriptor) [pid 5413] close(19) = -1 EBADF (Bad file descriptor) [pid 5413] close(20) = -1 EBADF (Bad file descriptor) [pid 5413] close(21) = -1 EBADF (Bad file descriptor) [pid 5413] close(22) = -1 EBADF (Bad file descriptor) [pid 5413] close(23) = -1 EBADF (Bad file descriptor) [pid 5413] close(24) = -1 EBADF (Bad file descriptor) [pid 5413] close(25) = -1 EBADF (Bad file descriptor) [pid 5413] close(26) = -1 EBADF (Bad file descriptor) [pid 5413] close(27) = -1 EBADF (Bad file descriptor) [pid 5413] close(28) = -1 EBADF (Bad file descriptor) [pid 5413] close(29) = -1 EBADF (Bad file descriptor) [pid 5413] exit_group(0) = ? [pid 5413] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=184, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./182/binderfs") = 0 [ 124.156833][ T5413] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./182/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./182/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./182/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./182") = 0 [pid 5039] mkdir("./183", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5415 attached , child_tidptr=0x555555e46650) = 185 [pid 5415] set_robust_list(0x555555e46660, 24) = 0 [pid 5415] chdir("./183") = 0 [pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5415] setpgid(0, 0) = 0 [pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5415] write(3, "1000", 4) = 4 [pid 5415] close(3) = 0 [pid 5415] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5415] memfd_create("syzkaller", 0) = 3 [pid 5415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5415] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5415] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5415] close(3) = 0 [pid 5415] mkdir("./file0", 0777) = 0 [ 124.334586][ T5415] loop0: detected capacity change from 0 to 8192 [ 124.344603][ T5415] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.357938][ T5415] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 124.367559][ T5415] REISERFS (device loop0): using ordered data mode [ 124.374125][ T5415] reiserfs: using flush barriers [pid 5415] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5415] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5415] chdir("./file0") = 0 [pid 5415] ioctl(4, LOOP_CLR_FD) = 0 [pid 5415] close(4) = 0 [pid 5415] mkdir(".", 0777) = -1 EEXIST (File exists) [ 124.380726][ T5415] 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 [ 124.397358][ T5415] REISERFS (device loop0): checking transaction log (loop0) [ 124.406277][ T5415] REISERFS (device loop0): Using r5 hash to sort names [ 124.420618][ T5415] reiserfs: enabling write barrier flush mode [pid 5415] mount(NULL, ".", 0x200000c0, 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 5415] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5415] chdir(".") = 0 [pid 5415] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5415] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5415] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5415] close(3) = 0 [pid 5415] close(4) = 0 [pid 5415] close(5) = 0 [pid 5415] close(6) = -1 EBADF (Bad file descriptor) [pid 5415] close(7) = -1 EBADF (Bad file descriptor) [pid 5415] close(8) = -1 EBADF (Bad file descriptor) [pid 5415] close(9) = -1 EBADF (Bad file descriptor) [pid 5415] close(10) = -1 EBADF (Bad file descriptor) [pid 5415] close(11) = -1 EBADF (Bad file descriptor) [pid 5415] close(12) = -1 EBADF (Bad file descriptor) [pid 5415] close(13) = -1 EBADF (Bad file descriptor) [pid 5415] close(14) = -1 EBADF (Bad file descriptor) [pid 5415] close(15) = -1 EBADF (Bad file descriptor) [pid 5415] close(16) = -1 EBADF (Bad file descriptor) [pid 5415] close(17) = -1 EBADF (Bad file descriptor) [pid 5415] close(18) = -1 EBADF (Bad file descriptor) [pid 5415] close(19) = -1 EBADF (Bad file descriptor) [pid 5415] close(20) = -1 EBADF (Bad file descriptor) [pid 5415] close(21) = -1 EBADF (Bad file descriptor) [pid 5415] close(22) = -1 EBADF (Bad file descriptor) [pid 5415] close(23) = -1 EBADF (Bad file descriptor) [pid 5415] close(24) = -1 EBADF (Bad file descriptor) [pid 5415] close(25) = -1 EBADF (Bad file descriptor) [pid 5415] close(26) = -1 EBADF (Bad file descriptor) [pid 5415] close(27) = -1 EBADF (Bad file descriptor) [pid 5415] close(28) = -1 EBADF (Bad file descriptor) [pid 5415] close(29) = -1 EBADF (Bad file descriptor) [pid 5415] exit_group(0) = ? [pid 5415] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=185, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./183", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./183/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./183/binderfs") = 0 [ 124.431107][ T5415] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./183/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./183/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./183/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./183") = 0 [pid 5039] mkdir("./184", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5417 attached , child_tidptr=0x555555e46650) = 186 [pid 5417] set_robust_list(0x555555e46660, 24) = 0 [pid 5417] chdir("./184") = 0 [pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5417] setpgid(0, 0) = 0 [pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5417] write(3, "1000", 4) = 4 [pid 5417] close(3) = 0 [pid 5417] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5417] memfd_create("syzkaller", 0) = 3 [pid 5417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5417] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5417] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5417] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5417] close(3) = 0 [pid 5417] mkdir("./file0", 0777) = 0 [ 124.606513][ T5417] loop0: detected capacity change from 0 to 8192 [ 124.617083][ T5417] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.630168][ T5417] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 124.639681][ T5417] REISERFS (device loop0): using ordered data mode [ 124.646272][ T5417] reiserfs: using flush barriers [pid 5417] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5417] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5417] chdir("./file0") = 0 [pid 5417] ioctl(4, LOOP_CLR_FD) = 0 [pid 5417] close(4) = 0 [pid 5417] mkdir(".", 0777) = -1 EEXIST (File exists) [ 124.652837][ T5417] 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 [ 124.669920][ T5417] REISERFS (device loop0): checking transaction log (loop0) [ 124.678652][ T5417] REISERFS (device loop0): Using r5 hash to sort names [pid 5417] mount(NULL, ".", 0x200000c0, 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 5417] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5417] chdir(".") = 0 [pid 5417] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5417] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5417] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5417] close(3) = 0 [pid 5417] close(4) = 0 [pid 5417] close(5) = 0 [pid 5417] close(6) = -1 EBADF (Bad file descriptor) [pid 5417] close(7) = -1 EBADF (Bad file descriptor) [pid 5417] close(8) = -1 EBADF (Bad file descriptor) [pid 5417] close(9) = -1 EBADF (Bad file descriptor) [pid 5417] close(10) = -1 EBADF (Bad file descriptor) [pid 5417] close(11) = -1 EBADF (Bad file descriptor) [pid 5417] close(12) = -1 EBADF (Bad file descriptor) [pid 5417] close(13) = -1 EBADF (Bad file descriptor) [pid 5417] close(14) = -1 EBADF (Bad file descriptor) [pid 5417] close(15) = -1 EBADF (Bad file descriptor) [pid 5417] close(16) = -1 EBADF (Bad file descriptor) [pid 5417] close(17) = -1 EBADF (Bad file descriptor) [pid 5417] close(18) = -1 EBADF (Bad file descriptor) [pid 5417] close(19) = -1 EBADF (Bad file descriptor) [pid 5417] close(20) = -1 EBADF (Bad file descriptor) [pid 5417] close(21) = -1 EBADF (Bad file descriptor) [pid 5417] close(22) = -1 EBADF (Bad file descriptor) [pid 5417] close(23) = -1 EBADF (Bad file descriptor) [pid 5417] close(24) = -1 EBADF (Bad file descriptor) [pid 5417] close(25) = -1 EBADF (Bad file descriptor) [pid 5417] close(26) = -1 EBADF (Bad file descriptor) [pid 5417] close(27) = -1 EBADF (Bad file descriptor) [pid 5417] close(28) = -1 EBADF (Bad file descriptor) [pid 5417] close(29) = -1 EBADF (Bad file descriptor) [pid 5417] exit_group(0) = ? [pid 5417] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=186, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./184", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./184/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./184/binderfs") = 0 [ 124.706855][ T5417] reiserfs: enabling write barrier flush mode [ 124.716879][ T5417] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./184/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./184/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./184/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./184") = 0 [pid 5039] mkdir("./185", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5419 attached , child_tidptr=0x555555e46650) = 187 [pid 5419] set_robust_list(0x555555e46660, 24) = 0 [pid 5419] chdir("./185") = 0 [pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5419] setpgid(0, 0) = 0 [pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5419] write(3, "1000", 4) = 4 [pid 5419] close(3) = 0 [pid 5419] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5419] memfd_create("syzkaller", 0) = 3 [pid 5419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5419] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5419] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5419] close(3) = 0 [pid 5419] mkdir("./file0", 0777) = 0 [ 124.881821][ T5419] loop0: detected capacity change from 0 to 8192 [ 124.893622][ T5419] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.906754][ T5419] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 124.916119][ T5419] REISERFS (device loop0): using ordered data mode [ 124.922646][ T5419] reiserfs: using flush barriers [pid 5419] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5419] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5419] chdir("./file0") = 0 [pid 5419] ioctl(4, LOOP_CLR_FD) = 0 [pid 5419] close(4) = 0 [pid 5419] mkdir(".", 0777) = -1 EEXIST (File exists) [ 124.929252][ T5419] 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 [ 124.945944][ T5419] REISERFS (device loop0): checking transaction log (loop0) [ 124.954347][ T5419] REISERFS (device loop0): Using r5 hash to sort names [ 124.967965][ T5419] reiserfs: enabling write barrier flush mode [pid 5419] mount(NULL, ".", 0x200000c0, 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 5419] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5419] chdir(".") = 0 [pid 5419] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5419] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5419] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5419] close(3) = 0 [pid 5419] close(4) = 0 [pid 5419] close(5) = 0 [pid 5419] close(6) = -1 EBADF (Bad file descriptor) [pid 5419] close(7) = -1 EBADF (Bad file descriptor) [pid 5419] close(8) = -1 EBADF (Bad file descriptor) [pid 5419] close(9) = -1 EBADF (Bad file descriptor) [pid 5419] close(10) = -1 EBADF (Bad file descriptor) [pid 5419] close(11) = -1 EBADF (Bad file descriptor) [pid 5419] close(12) = -1 EBADF (Bad file descriptor) [pid 5419] close(13) = -1 EBADF (Bad file descriptor) [pid 5419] close(14) = -1 EBADF (Bad file descriptor) [pid 5419] close(15) = -1 EBADF (Bad file descriptor) [pid 5419] close(16) = -1 EBADF (Bad file descriptor) [pid 5419] close(17) = -1 EBADF (Bad file descriptor) [pid 5419] close(18) = -1 EBADF (Bad file descriptor) [pid 5419] close(19) = -1 EBADF (Bad file descriptor) [pid 5419] close(20) = -1 EBADF (Bad file descriptor) [pid 5419] close(21) = -1 EBADF (Bad file descriptor) [pid 5419] close(22) = -1 EBADF (Bad file descriptor) [pid 5419] close(23) = -1 EBADF (Bad file descriptor) [pid 5419] close(24) = -1 EBADF (Bad file descriptor) [pid 5419] close(25) = -1 EBADF (Bad file descriptor) [pid 5419] close(26) = -1 EBADF (Bad file descriptor) [pid 5419] close(27) = -1 EBADF (Bad file descriptor) [pid 5419] close(28) = -1 EBADF (Bad file descriptor) [pid 5419] close(29) = -1 EBADF (Bad file descriptor) [pid 5419] exit_group(0) = ? [pid 5419] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=187, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./185", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./185/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./185/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./185/binderfs") = 0 [ 124.977711][ T5419] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./185/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./185/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./185/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./185") = 0 [pid 5039] mkdir("./186", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 188 ./strace-static-x86_64: Process 5421 attached [pid 5421] set_robust_list(0x555555e46660, 24) = 0 [pid 5421] chdir("./186") = 0 [pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5421] setpgid(0, 0) = 0 [pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5421] write(3, "1000", 4) = 4 [pid 5421] close(3) = 0 [pid 5421] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5421] memfd_create("syzkaller", 0) = 3 [pid 5421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5421] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5421] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5421] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5421] close(3) = 0 [pid 5421] mkdir("./file0", 0777) = 0 [ 125.141559][ T5421] loop0: detected capacity change from 0 to 8192 [ 125.152466][ T5421] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.165543][ T5421] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 125.174773][ T5421] REISERFS (device loop0): using ordered data mode [ 125.181478][ T5421] reiserfs: using flush barriers [pid 5421] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5421] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5421] chdir("./file0") = 0 [pid 5421] ioctl(4, LOOP_CLR_FD) = 0 [pid 5421] close(4) = 0 [pid 5421] mkdir(".", 0777) = -1 EEXIST (File exists) [ 125.187794][ T5421] 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 [ 125.204509][ T5421] REISERFS (device loop0): checking transaction log (loop0) [ 125.213017][ T5421] REISERFS (device loop0): Using r5 hash to sort names [ 125.225917][ T5421] reiserfs: enabling write barrier flush mode [pid 5421] mount(NULL, ".", 0x200000c0, 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 5421] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5421] chdir(".") = 0 [pid 5421] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5421] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5421] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5421] close(3) = 0 [pid 5421] close(4) = 0 [pid 5421] close(5) = 0 [pid 5421] close(6) = -1 EBADF (Bad file descriptor) [pid 5421] close(7) = -1 EBADF (Bad file descriptor) [pid 5421] close(8) = -1 EBADF (Bad file descriptor) [pid 5421] close(9) = -1 EBADF (Bad file descriptor) [pid 5421] close(10) = -1 EBADF (Bad file descriptor) [pid 5421] close(11) = -1 EBADF (Bad file descriptor) [pid 5421] close(12) = -1 EBADF (Bad file descriptor) [pid 5421] close(13) = -1 EBADF (Bad file descriptor) [pid 5421] close(14) = -1 EBADF (Bad file descriptor) [pid 5421] close(15) = -1 EBADF (Bad file descriptor) [pid 5421] close(16) = -1 EBADF (Bad file descriptor) [pid 5421] close(17) = -1 EBADF (Bad file descriptor) [pid 5421] close(18) = -1 EBADF (Bad file descriptor) [pid 5421] close(19) = -1 EBADF (Bad file descriptor) [pid 5421] close(20) = -1 EBADF (Bad file descriptor) [pid 5421] close(21) = -1 EBADF (Bad file descriptor) [pid 5421] close(22) = -1 EBADF (Bad file descriptor) [pid 5421] close(23) = -1 EBADF (Bad file descriptor) [pid 5421] close(24) = -1 EBADF (Bad file descriptor) [pid 5421] close(25) = -1 EBADF (Bad file descriptor) [pid 5421] close(26) = -1 EBADF (Bad file descriptor) [pid 5421] close(27) = -1 EBADF (Bad file descriptor) [pid 5421] close(28) = -1 EBADF (Bad file descriptor) [pid 5421] close(29) = -1 EBADF (Bad file descriptor) [pid 5421] exit_group(0) = ? [pid 5421] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=188, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./186", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 125.237247][ T5421] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./186/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./186/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./186/binderfs") = 0 [pid 5039] umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./186/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./186/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./186/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./186") = 0 [pid 5039] mkdir("./187", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5423 attached , child_tidptr=0x555555e46650) = 189 [pid 5423] set_robust_list(0x555555e46660, 24) = 0 [pid 5423] chdir("./187") = 0 [pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5423] setpgid(0, 0) = 0 [pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5423] write(3, "1000", 4) = 4 [pid 5423] close(3) = 0 [pid 5423] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5423] memfd_create("syzkaller", 0) = 3 [pid 5423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5423] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5423] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5423] close(3) = 0 [pid 5423] mkdir("./file0", 0777) = 0 [ 125.416119][ T5423] loop0: detected capacity change from 0 to 8192 [ 125.426611][ T5423] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.439699][ T5423] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 125.449063][ T5423] REISERFS (device loop0): using ordered data mode [ 125.455619][ T5423] reiserfs: using flush barriers [pid 5423] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5423] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5423] chdir("./file0") = 0 [pid 5423] ioctl(4, LOOP_CLR_FD) = 0 [pid 5423] close(4) = 0 [pid 5423] mkdir(".", 0777) = -1 EEXIST (File exists) [ 125.462038][ T5423] 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 [ 125.478737][ T5423] REISERFS (device loop0): checking transaction log (loop0) [ 125.487180][ T5423] REISERFS (device loop0): Using r5 hash to sort names [ 125.498608][ T5423] reiserfs: enabling write barrier flush mode [pid 5423] mount(NULL, ".", 0x200000c0, 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 5423] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5423] chdir(".") = 0 [pid 5423] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5423] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5423] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5423] close(3) = 0 [pid 5423] close(4) = 0 [pid 5423] close(5) = 0 [pid 5423] close(6) = -1 EBADF (Bad file descriptor) [pid 5423] close(7) = -1 EBADF (Bad file descriptor) [pid 5423] close(8) = -1 EBADF (Bad file descriptor) [pid 5423] close(9) = -1 EBADF (Bad file descriptor) [pid 5423] close(10) = -1 EBADF (Bad file descriptor) [pid 5423] close(11) = -1 EBADF (Bad file descriptor) [pid 5423] close(12) = -1 EBADF (Bad file descriptor) [pid 5423] close(13) = -1 EBADF (Bad file descriptor) [pid 5423] close(14) = -1 EBADF (Bad file descriptor) [pid 5423] close(15) = -1 EBADF (Bad file descriptor) [pid 5423] close(16) = -1 EBADF (Bad file descriptor) [pid 5423] close(17) = -1 EBADF (Bad file descriptor) [pid 5423] close(18) = -1 EBADF (Bad file descriptor) [pid 5423] close(19) = -1 EBADF (Bad file descriptor) [pid 5423] close(20) = -1 EBADF (Bad file descriptor) [pid 5423] close(21) = -1 EBADF (Bad file descriptor) [pid 5423] close(22) = -1 EBADF (Bad file descriptor) [pid 5423] close(23) = -1 EBADF (Bad file descriptor) [pid 5423] close(24) = -1 EBADF (Bad file descriptor) [pid 5423] close(25) = -1 EBADF (Bad file descriptor) [pid 5423] close(26) = -1 EBADF (Bad file descriptor) [pid 5423] close(27) = -1 EBADF (Bad file descriptor) [pid 5423] close(28) = -1 EBADF (Bad file descriptor) [pid 5423] close(29) = -1 EBADF (Bad file descriptor) [pid 5423] exit_group(0) = ? [pid 5423] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=189, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./187", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./187/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./187/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./187/binderfs") = 0 [ 125.509344][ T5423] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./187/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./187/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./187/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./187/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./187/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./187/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./187") = 0 [pid 5039] mkdir("./188", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5425 attached , child_tidptr=0x555555e46650) = 190 [pid 5425] set_robust_list(0x555555e46660, 24) = 0 [pid 5425] chdir("./188") = 0 [pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5425] setpgid(0, 0) = 0 [pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5425] write(3, "1000", 4) = 4 [pid 5425] close(3) = 0 [pid 5425] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5425] memfd_create("syzkaller", 0) = 3 [pid 5425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5425] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5425] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5425] close(3) = 0 [pid 5425] mkdir("./file0", 0777) = 0 [ 125.689159][ T5425] loop0: detected capacity change from 0 to 8192 [ 125.700071][ T5425] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.713441][ T5425] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 125.723281][ T5425] REISERFS (device loop0): using ordered data mode [ 125.730098][ T5425] reiserfs: using flush barriers [pid 5425] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5425] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5425] chdir("./file0") = 0 [pid 5425] ioctl(4, LOOP_CLR_FD) = 0 [pid 5425] close(4) = 0 [pid 5425] mkdir(".", 0777) = -1 EEXIST (File exists) [ 125.736612][ T5425] 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 [ 125.753407][ T5425] REISERFS (device loop0): checking transaction log (loop0) [ 125.762207][ T5425] REISERFS (device loop0): Using r5 hash to sort names [ 125.776948][ T5425] reiserfs: enabling write barrier flush mode [pid 5425] mount(NULL, ".", 0x200000c0, 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 5425] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5425] chdir(".") = 0 [pid 5425] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5425] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5425] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5425] close(3) = 0 [pid 5425] close(4) = 0 [pid 5425] close(5) = 0 [pid 5425] close(6) = -1 EBADF (Bad file descriptor) [pid 5425] close(7) = -1 EBADF (Bad file descriptor) [pid 5425] close(8) = -1 EBADF (Bad file descriptor) [pid 5425] close(9) = -1 EBADF (Bad file descriptor) [pid 5425] close(10) = -1 EBADF (Bad file descriptor) [pid 5425] close(11) = -1 EBADF (Bad file descriptor) [pid 5425] close(12) = -1 EBADF (Bad file descriptor) [pid 5425] close(13) = -1 EBADF (Bad file descriptor) [pid 5425] close(14) = -1 EBADF (Bad file descriptor) [pid 5425] close(15) = -1 EBADF (Bad file descriptor) [pid 5425] close(16) = -1 EBADF (Bad file descriptor) [pid 5425] close(17) = -1 EBADF (Bad file descriptor) [pid 5425] close(18) = -1 EBADF (Bad file descriptor) [pid 5425] close(19) = -1 EBADF (Bad file descriptor) [pid 5425] close(20) = -1 EBADF (Bad file descriptor) [pid 5425] close(21) = -1 EBADF (Bad file descriptor) [pid 5425] close(22) = -1 EBADF (Bad file descriptor) [pid 5425] close(23) = -1 EBADF (Bad file descriptor) [pid 5425] close(24) = -1 EBADF (Bad file descriptor) [pid 5425] close(25) = -1 EBADF (Bad file descriptor) [pid 5425] close(26) = -1 EBADF (Bad file descriptor) [pid 5425] close(27) = -1 EBADF (Bad file descriptor) [pid 5425] close(28) = -1 EBADF (Bad file descriptor) [pid 5425] close(29) = -1 EBADF (Bad file descriptor) [pid 5425] exit_group(0) = ? [pid 5425] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=190, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./188", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./188/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./188/binderfs") = 0 [ 125.788274][ T5425] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./188/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./188/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./188/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./188/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./188/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./188/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./188") = 0 [pid 5039] mkdir("./189", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5427 attached , child_tidptr=0x555555e46650) = 191 [pid 5427] set_robust_list(0x555555e46660, 24) = 0 [pid 5427] chdir("./189") = 0 [pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5427] setpgid(0, 0) = 0 [pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5427] write(3, "1000", 4) = 4 [pid 5427] close(3) = 0 [pid 5427] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5427] memfd_create("syzkaller", 0) = 3 [pid 5427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5427] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5427] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5427] close(3) = 0 [pid 5427] mkdir("./file0", 0777) = 0 [ 125.967072][ T5427] loop0: detected capacity change from 0 to 8192 [ 125.977510][ T5427] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.990547][ T5427] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 126.000096][ T5427] REISERFS (device loop0): using ordered data mode [ 126.006648][ T5427] reiserfs: using flush barriers [pid 5427] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5427] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5427] chdir("./file0") = 0 [pid 5427] ioctl(4, LOOP_CLR_FD) = 0 [pid 5427] close(4) = 0 [pid 5427] mkdir(".", 0777) = -1 EEXIST (File exists) [ 126.013129][ T5427] 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 [ 126.029790][ T5427] REISERFS (device loop0): checking transaction log (loop0) [ 126.038226][ T5427] REISERFS (device loop0): Using r5 hash to sort names [ 126.048778][ T5427] reiserfs: enabling write barrier flush mode [pid 5427] mount(NULL, ".", 0x200000c0, 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 5427] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5427] chdir(".") = 0 [pid 5427] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5427] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5427] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5427] close(3) = 0 [pid 5427] close(4) = 0 [pid 5427] close(5) = 0 [pid 5427] close(6) = -1 EBADF (Bad file descriptor) [pid 5427] close(7) = -1 EBADF (Bad file descriptor) [pid 5427] close(8) = -1 EBADF (Bad file descriptor) [pid 5427] close(9) = -1 EBADF (Bad file descriptor) [pid 5427] close(10) = -1 EBADF (Bad file descriptor) [pid 5427] close(11) = -1 EBADF (Bad file descriptor) [pid 5427] close(12) = -1 EBADF (Bad file descriptor) [pid 5427] close(13) = -1 EBADF (Bad file descriptor) [pid 5427] close(14) = -1 EBADF (Bad file descriptor) [pid 5427] close(15) = -1 EBADF (Bad file descriptor) [pid 5427] close(16) = -1 EBADF (Bad file descriptor) [pid 5427] close(17) = -1 EBADF (Bad file descriptor) [pid 5427] close(18) = -1 EBADF (Bad file descriptor) [pid 5427] close(19) = -1 EBADF (Bad file descriptor) [pid 5427] close(20) = -1 EBADF (Bad file descriptor) [pid 5427] close(21) = -1 EBADF (Bad file descriptor) [pid 5427] close(22) = -1 EBADF (Bad file descriptor) [pid 5427] close(23) = -1 EBADF (Bad file descriptor) [pid 5427] close(24) = -1 EBADF (Bad file descriptor) [pid 5427] close(25) = -1 EBADF (Bad file descriptor) [pid 5427] close(26) = -1 EBADF (Bad file descriptor) [pid 5427] close(27) = -1 EBADF (Bad file descriptor) [pid 5427] close(28) = -1 EBADF (Bad file descriptor) [pid 5427] close(29) = -1 EBADF (Bad file descriptor) [pid 5427] exit_group(0) = ? [pid 5427] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=191, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./189", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./189/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./189/binderfs") = 0 [ 126.059054][ T5427] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./189/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./189/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./189/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./189/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./189/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./189/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./189") = 0 [pid 5039] mkdir("./190", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 192 ./strace-static-x86_64: Process 5429 attached [pid 5429] set_robust_list(0x555555e46660, 24) = 0 [pid 5429] chdir("./190") = 0 [pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5429] setpgid(0, 0) = 0 [pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5429] write(3, "1000", 4) = 4 [pid 5429] close(3) = 0 [pid 5429] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5429] memfd_create("syzkaller", 0) = 3 [pid 5429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5429] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5429] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5429] close(3) = 0 [pid 5429] mkdir("./file0", 0777) = 0 [ 126.236111][ T5429] loop0: detected capacity change from 0 to 8192 [ 126.246410][ T5429] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 126.259658][ T5429] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 126.269572][ T5429] REISERFS (device loop0): using ordered data mode [ 126.276157][ T5429] reiserfs: using flush barriers [pid 5429] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5429] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5429] chdir("./file0") = 0 [pid 5429] ioctl(4, LOOP_CLR_FD) = 0 [pid 5429] close(4) = 0 [pid 5429] mkdir(".", 0777) = -1 EEXIST (File exists) [ 126.282638][ T5429] 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 [ 126.299318][ T5429] REISERFS (device loop0): checking transaction log (loop0) [ 126.308138][ T5429] REISERFS (device loop0): Using r5 hash to sort names [ 126.320239][ T5429] reiserfs: enabling write barrier flush mode [pid 5429] mount(NULL, ".", 0x200000c0, 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 5429] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5429] chdir(".") = 0 [pid 5429] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5429] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5429] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5429] close(3) = 0 [pid 5429] close(4) = 0 [pid 5429] close(5) = 0 [pid 5429] close(6) = -1 EBADF (Bad file descriptor) [pid 5429] close(7) = -1 EBADF (Bad file descriptor) [pid 5429] close(8) = -1 EBADF (Bad file descriptor) [pid 5429] close(9) = -1 EBADF (Bad file descriptor) [pid 5429] close(10) = -1 EBADF (Bad file descriptor) [pid 5429] close(11) = -1 EBADF (Bad file descriptor) [pid 5429] close(12) = -1 EBADF (Bad file descriptor) [pid 5429] close(13) = -1 EBADF (Bad file descriptor) [pid 5429] close(14) = -1 EBADF (Bad file descriptor) [pid 5429] close(15) = -1 EBADF (Bad file descriptor) [pid 5429] close(16) = -1 EBADF (Bad file descriptor) [pid 5429] close(17) = -1 EBADF (Bad file descriptor) [pid 5429] close(18) = -1 EBADF (Bad file descriptor) [pid 5429] close(19) = -1 EBADF (Bad file descriptor) [pid 5429] close(20) = -1 EBADF (Bad file descriptor) [pid 5429] close(21) = -1 EBADF (Bad file descriptor) [pid 5429] close(22) = -1 EBADF (Bad file descriptor) [pid 5429] close(23) = -1 EBADF (Bad file descriptor) [pid 5429] close(24) = -1 EBADF (Bad file descriptor) [pid 5429] close(25) = -1 EBADF (Bad file descriptor) [pid 5429] close(26) = -1 EBADF (Bad file descriptor) [pid 5429] close(27) = -1 EBADF (Bad file descriptor) [pid 5429] close(28) = -1 EBADF (Bad file descriptor) [pid 5429] close(29) = -1 EBADF (Bad file descriptor) [pid 5429] exit_group(0) = ? [pid 5429] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=192, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] umount2("./190", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./190/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./190/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./190/binderfs") = 0 [ 126.330406][ T5429] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./190/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./190/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./190/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./190/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./190/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./190/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./190") = 0 [pid 5039] mkdir("./191", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5431 attached , child_tidptr=0x555555e46650) = 193 [pid 5431] set_robust_list(0x555555e46660, 24) = 0 [pid 5431] chdir("./191") = 0 [pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5431] setpgid(0, 0) = 0 [pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5431] write(3, "1000", 4) = 4 [pid 5431] close(3) = 0 [pid 5431] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5431] memfd_create("syzkaller", 0) = 3 [pid 5431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5431] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5431] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5431] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5431] close(3) = 0 [pid 5431] mkdir("./file0", 0777) = 0 [ 126.503381][ T5431] loop0: detected capacity change from 0 to 8192 [ 126.513599][ T5431] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 126.527252][ T5431] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 126.536672][ T5431] REISERFS (device loop0): using ordered data mode [ 126.543188][ T5431] reiserfs: using flush barriers [pid 5431] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5431] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5431] chdir("./file0") = 0 [pid 5431] ioctl(4, LOOP_CLR_FD) = 0 [pid 5431] close(4) = 0 [pid 5431] mkdir(".", 0777) = -1 EEXIST (File exists) [ 126.549953][ T5431] 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 [ 126.566440][ T5431] REISERFS (device loop0): checking transaction log (loop0) [ 126.575074][ T5431] REISERFS (device loop0): Using r5 hash to sort names [ 126.587332][ T5431] reiserfs: enabling write barrier flush mode [pid 5431] mount(NULL, ".", 0x200000c0, 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 5431] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5431] chdir(".") = 0 [pid 5431] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5431] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5431] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5431] close(3) = 0 [pid 5431] close(4) = 0 [pid 5431] close(5) = 0 [pid 5431] close(6) = -1 EBADF (Bad file descriptor) [pid 5431] close(7) = -1 EBADF (Bad file descriptor) [pid 5431] close(8) = -1 EBADF (Bad file descriptor) [pid 5431] close(9) = -1 EBADF (Bad file descriptor) [pid 5431] close(10) = -1 EBADF (Bad file descriptor) [pid 5431] close(11) = -1 EBADF (Bad file descriptor) [pid 5431] close(12) = -1 EBADF (Bad file descriptor) [pid 5431] close(13) = -1 EBADF (Bad file descriptor) [pid 5431] close(14) = -1 EBADF (Bad file descriptor) [pid 5431] close(15) = -1 EBADF (Bad file descriptor) [pid 5431] close(16) = -1 EBADF (Bad file descriptor) [pid 5431] close(17) = -1 EBADF (Bad file descriptor) [pid 5431] close(18) = -1 EBADF (Bad file descriptor) [pid 5431] close(19) = -1 EBADF (Bad file descriptor) [pid 5431] close(20) = -1 EBADF (Bad file descriptor) [pid 5431] close(21) = -1 EBADF (Bad file descriptor) [pid 5431] close(22) = -1 EBADF (Bad file descriptor) [pid 5431] close(23) = -1 EBADF (Bad file descriptor) [pid 5431] close(24) = -1 EBADF (Bad file descriptor) [pid 5431] close(25) = -1 EBADF (Bad file descriptor) [pid 5431] close(26) = -1 EBADF (Bad file descriptor) [pid 5431] close(27) = -1 EBADF (Bad file descriptor) [pid 5431] close(28) = -1 EBADF (Bad file descriptor) [pid 5431] close(29) = -1 EBADF (Bad file descriptor) [pid 5431] exit_group(0) = ? [pid 5431] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=193, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./191", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./191/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./191/binderfs") = 0 [ 126.597457][ T5431] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./191/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./191/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./191/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./191/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./191/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./191/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./191") = 0 [pid 5039] mkdir("./192", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 194 ./strace-static-x86_64: Process 5433 attached [pid 5433] set_robust_list(0x555555e46660, 24) = 0 [pid 5433] chdir("./192") = 0 [pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5433] setpgid(0, 0) = 0 [pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5433] write(3, "1000", 4) = 4 [pid 5433] close(3) = 0 [pid 5433] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5433] memfd_create("syzkaller", 0) = 3 [pid 5433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5433] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5433] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5433] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5433] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5433] close(3) = 0 [pid 5433] mkdir("./file0", 0777) = 0 [ 126.776760][ T5433] loop0: detected capacity change from 0 to 8192 [ 126.787929][ T5433] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 126.800942][ T5433] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 126.810211][ T5433] REISERFS (device loop0): using ordered data mode [ 126.816916][ T5433] reiserfs: using flush barriers [pid 5433] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5433] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5433] chdir("./file0") = 0 [pid 5433] ioctl(4, LOOP_CLR_FD) = 0 [pid 5433] close(4) = 0 [pid 5433] mkdir(".", 0777) = -1 EEXIST (File exists) [ 126.823349][ T5433] 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 [ 126.840169][ T5433] REISERFS (device loop0): checking transaction log (loop0) [ 126.848473][ T5433] REISERFS (device loop0): Using r5 hash to sort names [ 126.867063][ T5433] reiserfs: enabling write barrier flush mode [pid 5433] mount(NULL, ".", 0x200000c0, 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 5433] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5433] chdir(".") = 0 [pid 5433] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5433] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5433] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5433] close(3) = 0 [pid 5433] close(4) = 0 [pid 5433] close(5) = 0 [pid 5433] close(6) = -1 EBADF (Bad file descriptor) [pid 5433] close(7) = -1 EBADF (Bad file descriptor) [pid 5433] close(8) = -1 EBADF (Bad file descriptor) [pid 5433] close(9) = -1 EBADF (Bad file descriptor) [pid 5433] close(10) = -1 EBADF (Bad file descriptor) [pid 5433] close(11) = -1 EBADF (Bad file descriptor) [pid 5433] close(12) = -1 EBADF (Bad file descriptor) [pid 5433] close(13) = -1 EBADF (Bad file descriptor) [pid 5433] close(14) = -1 EBADF (Bad file descriptor) [pid 5433] close(15) = -1 EBADF (Bad file descriptor) [pid 5433] close(16) = -1 EBADF (Bad file descriptor) [pid 5433] close(17) = -1 EBADF (Bad file descriptor) [pid 5433] close(18) = -1 EBADF (Bad file descriptor) [pid 5433] close(19) = -1 EBADF (Bad file descriptor) [pid 5433] close(20) = -1 EBADF (Bad file descriptor) [pid 5433] close(21) = -1 EBADF (Bad file descriptor) [pid 5433] close(22) = -1 EBADF (Bad file descriptor) [pid 5433] close(23) = -1 EBADF (Bad file descriptor) [pid 5433] close(24) = -1 EBADF (Bad file descriptor) [pid 5433] close(25) = -1 EBADF (Bad file descriptor) [pid 5433] close(26) = -1 EBADF (Bad file descriptor) [pid 5433] close(27) = -1 EBADF (Bad file descriptor) [pid 5433] close(28) = -1 EBADF (Bad file descriptor) [pid 5433] close(29) = -1 EBADF (Bad file descriptor) [pid 5433] exit_group(0) = ? [pid 5433] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=194, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./192", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./192/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./192/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./192/binderfs") = 0 [ 126.882542][ T5433] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./192/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./192/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./192/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./192/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./192/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./192/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./192") = 0 [pid 5039] mkdir("./193", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5435 attached , child_tidptr=0x555555e46650) = 195 [pid 5435] set_robust_list(0x555555e46660, 24) = 0 [pid 5435] chdir("./193") = 0 [pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5435] setpgid(0, 0) = 0 [pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5435] write(3, "1000", 4) = 4 [pid 5435] close(3) = 0 [pid 5435] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5435] memfd_create("syzkaller", 0) = 3 [pid 5435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5435] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5435] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5435] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5435] close(3) = 0 [pid 5435] mkdir("./file0", 0777) = 0 [ 127.045832][ T5435] loop0: detected capacity change from 0 to 8192 [ 127.056596][ T5435] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.069690][ T5435] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 127.078955][ T5435] REISERFS (device loop0): using ordered data mode [ 127.085542][ T5435] reiserfs: using flush barriers [pid 5435] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5435] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5435] chdir("./file0") = 0 [pid 5435] ioctl(4, LOOP_CLR_FD) = 0 [pid 5435] close(4) = 0 [pid 5435] mkdir(".", 0777) = -1 EEXIST (File exists) [ 127.092122][ T5435] 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 [ 127.108629][ T5435] REISERFS (device loop0): checking transaction log (loop0) [ 127.117351][ T5435] REISERFS (device loop0): Using r5 hash to sort names [ 127.137473][ T5435] reiserfs: enabling write barrier flush mode [pid 5435] mount(NULL, ".", 0x200000c0, 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 5435] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5435] chdir(".") = 0 [pid 5435] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5435] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5435] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5435] close(3) = 0 [pid 5435] close(4) = 0 [pid 5435] close(5) = 0 [pid 5435] close(6) = -1 EBADF (Bad file descriptor) [pid 5435] close(7) = -1 EBADF (Bad file descriptor) [pid 5435] close(8) = -1 EBADF (Bad file descriptor) [pid 5435] close(9) = -1 EBADF (Bad file descriptor) [pid 5435] close(10) = -1 EBADF (Bad file descriptor) [pid 5435] close(11) = -1 EBADF (Bad file descriptor) [pid 5435] close(12) = -1 EBADF (Bad file descriptor) [pid 5435] close(13) = -1 EBADF (Bad file descriptor) [pid 5435] close(14) = -1 EBADF (Bad file descriptor) [pid 5435] close(15) = -1 EBADF (Bad file descriptor) [pid 5435] close(16) = -1 EBADF (Bad file descriptor) [pid 5435] close(17) = -1 EBADF (Bad file descriptor) [pid 5435] close(18) = -1 EBADF (Bad file descriptor) [pid 5435] close(19) = -1 EBADF (Bad file descriptor) [pid 5435] close(20) = -1 EBADF (Bad file descriptor) [pid 5435] close(21) = -1 EBADF (Bad file descriptor) [pid 5435] close(22) = -1 EBADF (Bad file descriptor) [pid 5435] close(23) = -1 EBADF (Bad file descriptor) [pid 5435] close(24) = -1 EBADF (Bad file descriptor) [pid 5435] close(25) = -1 EBADF (Bad file descriptor) [pid 5435] close(26) = -1 EBADF (Bad file descriptor) [pid 5435] close(27) = -1 EBADF (Bad file descriptor) [pid 5435] close(28) = -1 EBADF (Bad file descriptor) [pid 5435] close(29) = -1 EBADF (Bad file descriptor) [pid 5435] exit_group(0) = ? [pid 5435] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=195, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./193", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./193/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./193/binderfs") = 0 [ 127.154477][ T5435] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./193/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./193/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./193/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./193/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./193/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./193/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./193") = 0 [pid 5039] mkdir("./194", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 196 ./strace-static-x86_64: Process 5437 attached [pid 5437] set_robust_list(0x555555e46660, 24) = 0 [pid 5437] chdir("./194") = 0 [pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5437] setpgid(0, 0) = 0 [pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5437] write(3, "1000", 4) = 4 [pid 5437] close(3) = 0 [pid 5437] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5437] memfd_create("syzkaller", 0) = 3 [pid 5437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5437] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5437] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5437] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5437] close(3) = 0 [pid 5437] mkdir("./file0", 0777) = 0 [ 127.307640][ T5437] loop0: detected capacity change from 0 to 8192 [ 127.318222][ T5437] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.331343][ T5437] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 127.340735][ T5437] REISERFS (device loop0): using ordered data mode [ 127.347285][ T5437] reiserfs: using flush barriers [pid 5437] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5437] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5437] chdir("./file0") = 0 [pid 5437] ioctl(4, LOOP_CLR_FD) = 0 [pid 5437] close(4) = 0 [pid 5437] mkdir(".", 0777) = -1 EEXIST (File exists) [ 127.353554][ T5437] 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 [ 127.370217][ T5437] REISERFS (device loop0): checking transaction log (loop0) [ 127.378537][ T5437] REISERFS (device loop0): Using r5 hash to sort names [ 127.390490][ T5437] reiserfs: enabling write barrier flush mode [pid 5437] mount(NULL, ".", 0x200000c0, 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 5437] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5437] chdir(".") = 0 [pid 5437] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5437] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5437] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5437] close(3) = 0 [pid 5437] close(4) = 0 [pid 5437] close(5) = 0 [pid 5437] close(6) = -1 EBADF (Bad file descriptor) [pid 5437] close(7) = -1 EBADF (Bad file descriptor) [pid 5437] close(8) = -1 EBADF (Bad file descriptor) [pid 5437] close(9) = -1 EBADF (Bad file descriptor) [pid 5437] close(10) = -1 EBADF (Bad file descriptor) [pid 5437] close(11) = -1 EBADF (Bad file descriptor) [pid 5437] close(12) = -1 EBADF (Bad file descriptor) [pid 5437] close(13) = -1 EBADF (Bad file descriptor) [pid 5437] close(14) = -1 EBADF (Bad file descriptor) [pid 5437] close(15) = -1 EBADF (Bad file descriptor) [pid 5437] close(16) = -1 EBADF (Bad file descriptor) [pid 5437] close(17) = -1 EBADF (Bad file descriptor) [pid 5437] close(18) = -1 EBADF (Bad file descriptor) [pid 5437] close(19) = -1 EBADF (Bad file descriptor) [pid 5437] close(20) = -1 EBADF (Bad file descriptor) [pid 5437] close(21) = -1 EBADF (Bad file descriptor) [pid 5437] close(22) = -1 EBADF (Bad file descriptor) [pid 5437] close(23) = -1 EBADF (Bad file descriptor) [pid 5437] close(24) = -1 EBADF (Bad file descriptor) [pid 5437] close(25) = -1 EBADF (Bad file descriptor) [pid 5437] close(26) = -1 EBADF (Bad file descriptor) [pid 5437] close(27) = -1 EBADF (Bad file descriptor) [pid 5437] close(28) = -1 EBADF (Bad file descriptor) [pid 5437] close(29) = -1 EBADF (Bad file descriptor) [pid 5437] exit_group(0) = ? [pid 5437] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=196, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./194", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./194/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./194/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./194/binderfs") = 0 [ 127.400100][ T5437] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./194/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./194/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./194/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./194/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./194/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./194/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./194") = 0 [pid 5039] mkdir("./195", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5439 attached , child_tidptr=0x555555e46650) = 197 [pid 5439] set_robust_list(0x555555e46660, 24) = 0 [pid 5439] chdir("./195") = 0 [pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5439] setpgid(0, 0) = 0 [pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5439] write(3, "1000", 4) = 4 [pid 5439] close(3) = 0 [pid 5439] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5439] memfd_create("syzkaller", 0) = 3 [pid 5439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5439] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5439] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5439] close(3) = 0 [pid 5439] mkdir("./file0", 0777) = 0 [ 127.570041][ T5439] loop0: detected capacity change from 0 to 8192 [ 127.580643][ T5439] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.593902][ T5439] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 127.603197][ T5439] REISERFS (device loop0): using ordered data mode [ 127.609777][ T5439] reiserfs: using flush barriers [pid 5439] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5439] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5439] chdir("./file0") = 0 [pid 5439] ioctl(4, LOOP_CLR_FD) = 0 [pid 5439] close(4) = 0 [pid 5439] mkdir(".", 0777) = -1 EEXIST (File exists) [ 127.616361][ T5439] 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 [ 127.633114][ T5439] REISERFS (device loop0): checking transaction log (loop0) [ 127.641677][ T5439] REISERFS (device loop0): Using r5 hash to sort names [ 127.653367][ T5439] reiserfs: enabling write barrier flush mode [pid 5439] mount(NULL, ".", 0x200000c0, 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 5439] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5439] chdir(".") = 0 [pid 5439] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5439] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5439] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5439] close(3) = 0 [pid 5439] close(4) = 0 [pid 5439] close(5) = 0 [pid 5439] close(6) = -1 EBADF (Bad file descriptor) [pid 5439] close(7) = -1 EBADF (Bad file descriptor) [pid 5439] close(8) = -1 EBADF (Bad file descriptor) [pid 5439] close(9) = -1 EBADF (Bad file descriptor) [pid 5439] close(10) = -1 EBADF (Bad file descriptor) [pid 5439] close(11) = -1 EBADF (Bad file descriptor) [pid 5439] close(12) = -1 EBADF (Bad file descriptor) [pid 5439] close(13) = -1 EBADF (Bad file descriptor) [pid 5439] close(14) = -1 EBADF (Bad file descriptor) [pid 5439] close(15) = -1 EBADF (Bad file descriptor) [pid 5439] close(16) = -1 EBADF (Bad file descriptor) [pid 5439] close(17) = -1 EBADF (Bad file descriptor) [pid 5439] close(18) = -1 EBADF (Bad file descriptor) [pid 5439] close(19) = -1 EBADF (Bad file descriptor) [pid 5439] close(20) = -1 EBADF (Bad file descriptor) [pid 5439] close(21) = -1 EBADF (Bad file descriptor) [pid 5439] close(22) = -1 EBADF (Bad file descriptor) [pid 5439] close(23) = -1 EBADF (Bad file descriptor) [ 127.664188][ T5439] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5439] close(24) = -1 EBADF (Bad file descriptor) [pid 5439] close(25) = -1 EBADF (Bad file descriptor) [pid 5439] close(26) = -1 EBADF (Bad file descriptor) [pid 5439] close(27) = -1 EBADF (Bad file descriptor) [pid 5439] close(28) = -1 EBADF (Bad file descriptor) [pid 5439] close(29) = -1 EBADF (Bad file descriptor) [pid 5439] exit_group(0) = ? [pid 5439] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=197, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./195", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./195/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./195/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./195/binderfs") = 0 [pid 5039] umount2("./195/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./195/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./195/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./195/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./195/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./195/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./195") = 0 [pid 5039] mkdir("./196", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5441 attached , child_tidptr=0x555555e46650) = 198 [pid 5441] set_robust_list(0x555555e46660, 24) = 0 [pid 5441] chdir("./196") = 0 [pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5441] setpgid(0, 0) = 0 [pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5441] write(3, "1000", 4) = 4 [pid 5441] close(3) = 0 [pid 5441] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5441] memfd_create("syzkaller", 0) = 3 [pid 5441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5441] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5441] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5441] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5441] close(3) = 0 [pid 5441] mkdir("./file0", 0777) = 0 [ 127.844480][ T5441] loop0: detected capacity change from 0 to 8192 [ 127.856220][ T5441] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.869430][ T5441] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 127.879078][ T5441] REISERFS (device loop0): using ordered data mode [ 127.885916][ T5441] reiserfs: using flush barriers [pid 5441] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5441] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5441] chdir("./file0") = 0 [pid 5441] ioctl(4, LOOP_CLR_FD) = 0 [pid 5441] close(4) = 0 [pid 5441] mkdir(".", 0777) = -1 EEXIST (File exists) [ 127.892697][ T5441] 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 [ 127.909676][ T5441] REISERFS (device loop0): checking transaction log (loop0) [ 127.918382][ T5441] REISERFS (device loop0): Using r5 hash to sort names [ 127.929258][ T5441] reiserfs: enabling write barrier flush mode [pid 5441] mount(NULL, ".", 0x200000c0, 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 5441] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5441] chdir(".") = 0 [pid 5441] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5441] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5441] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5441] close(3) = 0 [pid 5441] close(4) = 0 [pid 5441] close(5) = 0 [pid 5441] close(6) = -1 EBADF (Bad file descriptor) [pid 5441] close(7) = -1 EBADF (Bad file descriptor) [pid 5441] close(8) = -1 EBADF (Bad file descriptor) [pid 5441] close(9) = -1 EBADF (Bad file descriptor) [pid 5441] close(10) = -1 EBADF (Bad file descriptor) [pid 5441] close(11) = -1 EBADF (Bad file descriptor) [pid 5441] close(12) = -1 EBADF (Bad file descriptor) [pid 5441] close(13) = -1 EBADF (Bad file descriptor) [pid 5441] close(14) = -1 EBADF (Bad file descriptor) [pid 5441] close(15) = -1 EBADF (Bad file descriptor) [pid 5441] close(16) = -1 EBADF (Bad file descriptor) [pid 5441] close(17) = -1 EBADF (Bad file descriptor) [pid 5441] close(18) = -1 EBADF (Bad file descriptor) [pid 5441] close(19) = -1 EBADF (Bad file descriptor) [pid 5441] close(20) = -1 EBADF (Bad file descriptor) [pid 5441] close(21) = -1 EBADF (Bad file descriptor) [pid 5441] close(22) = -1 EBADF (Bad file descriptor) [pid 5441] close(23) = -1 EBADF (Bad file descriptor) [pid 5441] close(24) = -1 EBADF (Bad file descriptor) [pid 5441] close(25) = -1 EBADF (Bad file descriptor) [pid 5441] close(26) = -1 EBADF (Bad file descriptor) [pid 5441] close(27) = -1 EBADF (Bad file descriptor) [pid 5441] close(28) = -1 EBADF (Bad file descriptor) [pid 5441] close(29) = -1 EBADF (Bad file descriptor) [pid 5441] exit_group(0) = ? [pid 5441] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=198, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./196", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./196/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./196/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./196/binderfs") = 0 [ 127.939413][ T5441] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./196/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./196/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./196/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./196/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./196/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./196/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./196") = 0 [pid 5039] mkdir("./197", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 199 ./strace-static-x86_64: Process 5443 attached [pid 5443] set_robust_list(0x555555e46660, 24) = 0 [pid 5443] chdir("./197") = 0 [pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5443] setpgid(0, 0) = 0 [pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5443] write(3, "1000", 4) = 4 [pid 5443] close(3) = 0 [pid 5443] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5443] memfd_create("syzkaller", 0) = 3 [pid 5443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5443] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5443] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5443] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5443] close(3) = 0 [pid 5443] mkdir("./file0", 0777) = 0 [ 128.115001][ T5443] loop0: detected capacity change from 0 to 8192 [ 128.126013][ T5443] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.139069][ T5443] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 128.148505][ T5443] REISERFS (device loop0): using ordered data mode [ 128.155072][ T5443] reiserfs: using flush barriers [pid 5443] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5443] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5443] chdir("./file0") = 0 [pid 5443] ioctl(4, LOOP_CLR_FD) = 0 [pid 5443] close(4) = 0 [pid 5443] mkdir(".", 0777) = -1 EEXIST (File exists) [ 128.161443][ T5443] 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 [ 128.178138][ T5443] REISERFS (device loop0): checking transaction log (loop0) [ 128.186368][ T5443] REISERFS (device loop0): Using r5 hash to sort names [ 128.197713][ T5443] reiserfs: enabling write barrier flush mode [pid 5443] mount(NULL, ".", 0x200000c0, 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 5443] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5443] chdir(".") = 0 [pid 5443] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5443] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5443] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5443] close(3) = 0 [pid 5443] close(4) = 0 [pid 5443] close(5) = 0 [pid 5443] close(6) = -1 EBADF (Bad file descriptor) [pid 5443] close(7) = -1 EBADF (Bad file descriptor) [pid 5443] close(8) = -1 EBADF (Bad file descriptor) [pid 5443] close(9) = -1 EBADF (Bad file descriptor) [pid 5443] close(10) = -1 EBADF (Bad file descriptor) [pid 5443] close(11) = -1 EBADF (Bad file descriptor) [pid 5443] close(12) = -1 EBADF (Bad file descriptor) [pid 5443] close(13) = -1 EBADF (Bad file descriptor) [pid 5443] close(14) = -1 EBADF (Bad file descriptor) [pid 5443] close(15) = -1 EBADF (Bad file descriptor) [pid 5443] close(16) = -1 EBADF (Bad file descriptor) [pid 5443] close(17) = -1 EBADF (Bad file descriptor) [pid 5443] close(18) = -1 EBADF (Bad file descriptor) [pid 5443] close(19) = -1 EBADF (Bad file descriptor) [pid 5443] close(20) = -1 EBADF (Bad file descriptor) [pid 5443] close(21) = -1 EBADF (Bad file descriptor) [pid 5443] close(22) = -1 EBADF (Bad file descriptor) [pid 5443] close(23) = -1 EBADF (Bad file descriptor) [pid 5443] close(24) = -1 EBADF (Bad file descriptor) [pid 5443] close(25) = -1 EBADF (Bad file descriptor) [pid 5443] close(26) = -1 EBADF (Bad file descriptor) [pid 5443] close(27) = -1 EBADF (Bad file descriptor) [pid 5443] close(28) = -1 EBADF (Bad file descriptor) [pid 5443] close(29) = -1 EBADF (Bad file descriptor) [pid 5443] exit_group(0) = ? [pid 5443] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=199, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [ 128.207765][ T5443] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./197", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./197/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./197/binderfs") = 0 [pid 5039] umount2("./197/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./197/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./197/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./197/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./197/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./197/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./197") = 0 [pid 5039] mkdir("./198", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 200 ./strace-static-x86_64: Process 5445 attached [pid 5445] set_robust_list(0x555555e46660, 24) = 0 [pid 5445] chdir("./198") = 0 [pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5445] setpgid(0, 0) = 0 [pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5445] write(3, "1000", 4) = 4 [pid 5445] close(3) = 0 [pid 5445] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5445] memfd_create("syzkaller", 0) = 3 [pid 5445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5445] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5445] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5445] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5445] close(3) = 0 [pid 5445] mkdir("./file0", 0777) = 0 [ 128.393038][ T5445] loop0: detected capacity change from 0 to 8192 [ 128.403617][ T5445] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.416688][ T5445] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 128.426010][ T5445] REISERFS (device loop0): using ordered data mode [ 128.432622][ T5445] reiserfs: using flush barriers [pid 5445] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5445] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5445] chdir("./file0") = 0 [pid 5445] ioctl(4, LOOP_CLR_FD) = 0 [pid 5445] close(4) = 0 [pid 5445] mkdir(".", 0777) = -1 EEXIST (File exists) [ 128.439099][ T5445] 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 [ 128.456155][ T5445] REISERFS (device loop0): checking transaction log (loop0) [ 128.464547][ T5445] REISERFS (device loop0): Using r5 hash to sort names [ 128.477239][ T5445] reiserfs: enabling write barrier flush mode [pid 5445] mount(NULL, ".", 0x200000c0, 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 5445] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5445] chdir(".") = 0 [pid 5445] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5445] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5445] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5445] close(3) = 0 [pid 5445] close(4) = 0 [pid 5445] close(5) = 0 [pid 5445] close(6) = -1 EBADF (Bad file descriptor) [pid 5445] close(7) = -1 EBADF (Bad file descriptor) [pid 5445] close(8) = -1 EBADF (Bad file descriptor) [pid 5445] close(9) = -1 EBADF (Bad file descriptor) [pid 5445] close(10) = -1 EBADF (Bad file descriptor) [pid 5445] close(11) = -1 EBADF (Bad file descriptor) [pid 5445] close(12) = -1 EBADF (Bad file descriptor) [pid 5445] close(13) = -1 EBADF (Bad file descriptor) [pid 5445] close(14) = -1 EBADF (Bad file descriptor) [pid 5445] close(15) = -1 EBADF (Bad file descriptor) [pid 5445] close(16) = -1 EBADF (Bad file descriptor) [pid 5445] close(17) = -1 EBADF (Bad file descriptor) [pid 5445] close(18) = -1 EBADF (Bad file descriptor) [pid 5445] close(19) = -1 EBADF (Bad file descriptor) [pid 5445] close(20) = -1 EBADF (Bad file descriptor) [pid 5445] close(21) = -1 EBADF (Bad file descriptor) [pid 5445] close(22) = -1 EBADF (Bad file descriptor) [pid 5445] close(23) = -1 EBADF (Bad file descriptor) [pid 5445] close(24) = -1 EBADF (Bad file descriptor) [pid 5445] close(25) = -1 EBADF (Bad file descriptor) [pid 5445] close(26) = -1 EBADF (Bad file descriptor) [pid 5445] close(27) = -1 EBADF (Bad file descriptor) [pid 5445] close(28) = -1 EBADF (Bad file descriptor) [pid 5445] close(29) = -1 EBADF (Bad file descriptor) [pid 5445] exit_group(0) = ? [pid 5445] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=200, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./198", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./198/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./198/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./198/binderfs") = 0 [ 128.487699][ T5445] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./198/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./198/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./198/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./198/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./198/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./198/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./198") = 0 [pid 5039] mkdir("./199", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 201 ./strace-static-x86_64: Process 5447 attached [pid 5447] set_robust_list(0x555555e46660, 24) = 0 [pid 5447] chdir("./199") = 0 [pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5447] setpgid(0, 0) = 0 [pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5447] write(3, "1000", 4) = 4 [pid 5447] close(3) = 0 [pid 5447] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5447] memfd_create("syzkaller", 0) = 3 [pid 5447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5447] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5447] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5447] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5447] close(3) = 0 [pid 5447] mkdir("./file0", 0777) = 0 [ 128.655663][ T5447] loop0: detected capacity change from 0 to 8192 [ 128.665935][ T5447] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.679397][ T5447] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 128.689232][ T5447] REISERFS (device loop0): using ordered data mode [ 128.695970][ T5447] reiserfs: using flush barriers [pid 5447] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5447] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5447] chdir("./file0") = 0 [pid 5447] ioctl(4, LOOP_CLR_FD) = 0 [pid 5447] close(4) = 0 [pid 5447] mkdir(".", 0777) = -1 EEXIST (File exists) [ 128.702379][ T5447] 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 [ 128.719051][ T5447] REISERFS (device loop0): checking transaction log (loop0) [ 128.727333][ T5447] REISERFS (device loop0): Using r5 hash to sort names [ 128.740184][ T5447] reiserfs: enabling write barrier flush mode [pid 5447] mount(NULL, ".", 0x200000c0, 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 5447] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5447] chdir(".") = 0 [pid 5447] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5447] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5447] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5447] close(3) = 0 [pid 5447] close(4) = 0 [pid 5447] close(5) = 0 [pid 5447] close(6) = -1 EBADF (Bad file descriptor) [pid 5447] close(7) = -1 EBADF (Bad file descriptor) [pid 5447] close(8) = -1 EBADF (Bad file descriptor) [pid 5447] close(9) = -1 EBADF (Bad file descriptor) [pid 5447] close(10) = -1 EBADF (Bad file descriptor) [pid 5447] close(11) = -1 EBADF (Bad file descriptor) [pid 5447] close(12) = -1 EBADF (Bad file descriptor) [pid 5447] close(13) = -1 EBADF (Bad file descriptor) [pid 5447] close(14) = -1 EBADF (Bad file descriptor) [pid 5447] close(15) = -1 EBADF (Bad file descriptor) [pid 5447] close(16) = -1 EBADF (Bad file descriptor) [pid 5447] close(17) = -1 EBADF (Bad file descriptor) [pid 5447] close(18) = -1 EBADF (Bad file descriptor) [pid 5447] close(19) = -1 EBADF (Bad file descriptor) [pid 5447] close(20) = -1 EBADF (Bad file descriptor) [pid 5447] close(21) = -1 EBADF (Bad file descriptor) [pid 5447] close(22) = -1 EBADF (Bad file descriptor) [pid 5447] close(23) = -1 EBADF (Bad file descriptor) [pid 5447] close(24) = -1 EBADF (Bad file descriptor) [pid 5447] close(25) = -1 EBADF (Bad file descriptor) [pid 5447] close(26) = -1 EBADF (Bad file descriptor) [pid 5447] close(27) = -1 EBADF (Bad file descriptor) [pid 5447] close(28) = -1 EBADF (Bad file descriptor) [pid 5447] close(29) = -1 EBADF (Bad file descriptor) [pid 5447] exit_group(0) = ? [pid 5447] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=201, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./199", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./199/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./199/binderfs") = 0 [ 128.749888][ T5447] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./199/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./199/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./199/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./199/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./199/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./199/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./199") = 0 [pid 5039] mkdir("./200", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5449 attached [pid 5449] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 202 [pid 5449] <... set_robust_list resumed>) = 0 [pid 5449] chdir("./200") = 0 [pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5449] setpgid(0, 0) = 0 [pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5449] write(3, "1000", 4) = 4 [pid 5449] close(3) = 0 [pid 5449] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5449] memfd_create("syzkaller", 0) = 3 [pid 5449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5449] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5449] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5449] close(3) = 0 [pid 5449] mkdir("./file0", 0777) = 0 [ 128.917531][ T5449] loop0: detected capacity change from 0 to 8192 [ 128.929266][ T5449] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.942338][ T5449] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 128.952244][ T5449] REISERFS (device loop0): using ordered data mode [ 128.958817][ T5449] reiserfs: using flush barriers [pid 5449] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5449] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5449] chdir("./file0") = 0 [pid 5449] ioctl(4, LOOP_CLR_FD) = 0 [pid 5449] close(4) = 0 [pid 5449] mkdir(".", 0777) = -1 EEXIST (File exists) [ 128.965270][ T5449] 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 [ 128.981983][ T5449] REISERFS (device loop0): checking transaction log (loop0) [ 128.990566][ T5449] REISERFS (device loop0): Using r5 hash to sort names [ 129.003735][ T5449] reiserfs: enabling write barrier flush mode [pid 5449] mount(NULL, ".", 0x200000c0, 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 5449] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5449] chdir(".") = 0 [pid 5449] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5449] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5449] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5449] close(3) = 0 [pid 5449] close(4) = 0 [pid 5449] close(5) = 0 [pid 5449] close(6) = -1 EBADF (Bad file descriptor) [pid 5449] close(7) = -1 EBADF (Bad file descriptor) [pid 5449] close(8) = -1 EBADF (Bad file descriptor) [pid 5449] close(9) = -1 EBADF (Bad file descriptor) [pid 5449] close(10) = -1 EBADF (Bad file descriptor) [pid 5449] close(11) = -1 EBADF (Bad file descriptor) [pid 5449] close(12) = -1 EBADF (Bad file descriptor) [pid 5449] close(13) = -1 EBADF (Bad file descriptor) [pid 5449] close(14) = -1 EBADF (Bad file descriptor) [pid 5449] close(15) = -1 EBADF (Bad file descriptor) [pid 5449] close(16) = -1 EBADF (Bad file descriptor) [pid 5449] close(17) = -1 EBADF (Bad file descriptor) [pid 5449] close(18) = -1 EBADF (Bad file descriptor) [pid 5449] close(19) = -1 EBADF (Bad file descriptor) [pid 5449] close(20) = -1 EBADF (Bad file descriptor) [pid 5449] close(21) = -1 EBADF (Bad file descriptor) [pid 5449] close(22) = -1 EBADF (Bad file descriptor) [pid 5449] close(23) = -1 EBADF (Bad file descriptor) [pid 5449] close(24) = -1 EBADF (Bad file descriptor) [pid 5449] close(25) = -1 EBADF (Bad file descriptor) [pid 5449] close(26) = -1 EBADF (Bad file descriptor) [pid 5449] close(27) = -1 EBADF (Bad file descriptor) [pid 5449] close(28) = -1 EBADF (Bad file descriptor) [pid 5449] close(29) = -1 EBADF (Bad file descriptor) [pid 5449] exit_group(0) = ? [pid 5449] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=202, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] umount2("./200", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./200/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./200/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./200/binderfs") = 0 [ 129.014312][ T5449] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./200/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./200/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./200/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./200/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./200/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./200/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./200") = 0 [pid 5039] mkdir("./201", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 203 ./strace-static-x86_64: Process 5451 attached [pid 5451] set_robust_list(0x555555e46660, 24) = 0 [pid 5451] chdir("./201") = 0 [pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5451] setpgid(0, 0) = 0 [pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5451] write(3, "1000", 4) = 4 [pid 5451] close(3) = 0 [pid 5451] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5451] memfd_create("syzkaller", 0) = 3 [pid 5451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5451] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5451] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5451] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5451] close(3) = 0 [pid 5451] mkdir("./file0", 0777) = 0 [ 129.189709][ T5451] loop0: detected capacity change from 0 to 8192 [ 129.200150][ T5451] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.213433][ T5451] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 129.222673][ T5451] REISERFS (device loop0): using ordered data mode [ 129.229219][ T5451] reiserfs: using flush barriers [pid 5451] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5451] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5451] chdir("./file0") = 0 [pid 5451] ioctl(4, LOOP_CLR_FD) = 0 [pid 5451] close(4) = 0 [pid 5451] mkdir(".", 0777) = -1 EEXIST (File exists) [ 129.235719][ T5451] 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 [ 129.252501][ T5451] REISERFS (device loop0): checking transaction log (loop0) [ 129.261192][ T5451] REISERFS (device loop0): Using r5 hash to sort names [ 129.276642][ T5451] reiserfs: enabling write barrier flush mode [pid 5451] mount(NULL, ".", 0x200000c0, 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 5451] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5451] chdir(".") = 0 [pid 5451] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5451] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5451] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5451] close(3) = 0 [pid 5451] close(4) = 0 [pid 5451] close(5) = 0 [pid 5451] close(6) = -1 EBADF (Bad file descriptor) [pid 5451] close(7) = -1 EBADF (Bad file descriptor) [pid 5451] close(8) = -1 EBADF (Bad file descriptor) [pid 5451] close(9) = -1 EBADF (Bad file descriptor) [pid 5451] close(10) = -1 EBADF (Bad file descriptor) [pid 5451] close(11) = -1 EBADF (Bad file descriptor) [pid 5451] close(12) = -1 EBADF (Bad file descriptor) [pid 5451] close(13) = -1 EBADF (Bad file descriptor) [pid 5451] close(14) = -1 EBADF (Bad file descriptor) [pid 5451] close(15) = -1 EBADF (Bad file descriptor) [pid 5451] close(16) = -1 EBADF (Bad file descriptor) [pid 5451] close(17) = -1 EBADF (Bad file descriptor) [pid 5451] close(18) = -1 EBADF (Bad file descriptor) [pid 5451] close(19) = -1 EBADF (Bad file descriptor) [pid 5451] close(20) = -1 EBADF (Bad file descriptor) [pid 5451] close(21) = -1 EBADF (Bad file descriptor) [pid 5451] close(22) = -1 EBADF (Bad file descriptor) [pid 5451] close(23) = -1 EBADF (Bad file descriptor) [pid 5451] close(24) = -1 EBADF (Bad file descriptor) [pid 5451] close(25) = -1 EBADF (Bad file descriptor) [pid 5451] close(26) = -1 EBADF (Bad file descriptor) [pid 5451] close(27) = -1 EBADF (Bad file descriptor) [pid 5451] close(28) = -1 EBADF (Bad file descriptor) [pid 5451] close(29) = -1 EBADF (Bad file descriptor) [pid 5451] exit_group(0) = ? [pid 5451] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=203, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./201", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./201/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./201/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./201/binderfs") = 0 [ 129.288611][ T5451] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./201/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./201/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./201/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./201/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./201/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./201/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./201") = 0 [pid 5039] mkdir("./202", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5453 attached , child_tidptr=0x555555e46650) = 204 [pid 5453] set_robust_list(0x555555e46660, 24) = 0 [pid 5453] chdir("./202") = 0 [pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5453] setpgid(0, 0) = 0 [pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5453] write(3, "1000", 4) = 4 [pid 5453] close(3) = 0 [pid 5453] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5453] memfd_create("syzkaller", 0) = 3 [pid 5453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5453] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5453] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5453] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5453] close(3) = 0 [pid 5453] mkdir("./file0", 0777) = 0 [ 129.459022][ T5453] loop0: detected capacity change from 0 to 8192 [ 129.469919][ T5453] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.482937][ T5453] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 129.492509][ T5453] REISERFS (device loop0): using ordered data mode [ 129.499072][ T5453] reiserfs: using flush barriers [pid 5453] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5453] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5453] chdir("./file0") = 0 [pid 5453] ioctl(4, LOOP_CLR_FD) = 0 [pid 5453] close(4) = 0 [pid 5453] mkdir(".", 0777) = -1 EEXIST (File exists) [ 129.505630][ T5453] 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 [ 129.522283][ T5453] REISERFS (device loop0): checking transaction log (loop0) [ 129.530809][ T5453] REISERFS (device loop0): Using r5 hash to sort names [ 129.540974][ T5453] reiserfs: enabling write barrier flush mode [pid 5453] mount(NULL, ".", 0x200000c0, 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 5453] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5453] chdir(".") = 0 [pid 5453] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5453] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5453] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5453] close(3) = 0 [pid 5453] close(4) = 0 [pid 5453] close(5) = 0 [pid 5453] close(6) = -1 EBADF (Bad file descriptor) [pid 5453] close(7) = -1 EBADF (Bad file descriptor) [pid 5453] close(8) = -1 EBADF (Bad file descriptor) [pid 5453] close(9) = -1 EBADF (Bad file descriptor) [pid 5453] close(10) = -1 EBADF (Bad file descriptor) [pid 5453] close(11) = -1 EBADF (Bad file descriptor) [pid 5453] close(12) = -1 EBADF (Bad file descriptor) [pid 5453] close(13) = -1 EBADF (Bad file descriptor) [pid 5453] close(14) = -1 EBADF (Bad file descriptor) [pid 5453] close(15) = -1 EBADF (Bad file descriptor) [pid 5453] close(16) = -1 EBADF (Bad file descriptor) [pid 5453] close(17) = -1 EBADF (Bad file descriptor) [pid 5453] close(18) = -1 EBADF (Bad file descriptor) [pid 5453] close(19) = -1 EBADF (Bad file descriptor) [pid 5453] close(20) = -1 EBADF (Bad file descriptor) [pid 5453] close(21) = -1 EBADF (Bad file descriptor) [pid 5453] close(22) = -1 EBADF (Bad file descriptor) [pid 5453] close(23) = -1 EBADF (Bad file descriptor) [pid 5453] close(24) = -1 EBADF (Bad file descriptor) [pid 5453] close(25) = -1 EBADF (Bad file descriptor) [pid 5453] close(26) = -1 EBADF (Bad file descriptor) [pid 5453] close(27) = -1 EBADF (Bad file descriptor) [pid 5453] close(28) = -1 EBADF (Bad file descriptor) [pid 5453] close(29) = -1 EBADF (Bad file descriptor) [pid 5453] exit_group(0) = ? [pid 5453] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=204, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./202", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./202/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./202/binderfs") = 0 [ 129.551575][ T5453] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./202/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./202/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./202/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./202/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./202/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./202/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./202") = 0 [pid 5039] mkdir("./203", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5455 attached , child_tidptr=0x555555e46650) = 205 [pid 5455] set_robust_list(0x555555e46660, 24) = 0 [pid 5455] chdir("./203") = 0 [pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5455] setpgid(0, 0) = 0 [pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5455] write(3, "1000", 4) = 4 [pid 5455] close(3) = 0 [pid 5455] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5455] memfd_create("syzkaller", 0) = 3 [pid 5455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5455] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5455] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5455] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5455] close(3) = 0 [pid 5455] mkdir("./file0", 0777) = 0 [ 129.720487][ T5455] loop0: detected capacity change from 0 to 8192 [ 129.732168][ T5455] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.745403][ T5455] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 129.754673][ T5455] REISERFS (device loop0): using ordered data mode [ 129.761255][ T5455] reiserfs: using flush barriers [pid 5455] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5455] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5455] chdir("./file0") = 0 [pid 5455] ioctl(4, LOOP_CLR_FD) = 0 [pid 5455] close(4) = 0 [pid 5455] mkdir(".", 0777) = -1 EEXIST (File exists) [ 129.767834][ T5455] 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 [ 129.784544][ T5455] REISERFS (device loop0): checking transaction log (loop0) [ 129.792984][ T5455] REISERFS (device loop0): Using r5 hash to sort names [ 129.814768][ T5455] reiserfs: enabling write barrier flush mode [pid 5455] mount(NULL, ".", 0x200000c0, 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 5455] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5455] chdir(".") = 0 [pid 5455] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5455] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5455] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5455] close(3) = 0 [pid 5455] close(4) = 0 [pid 5455] close(5) = 0 [pid 5455] close(6) = -1 EBADF (Bad file descriptor) [pid 5455] close(7) = -1 EBADF (Bad file descriptor) [pid 5455] close(8) = -1 EBADF (Bad file descriptor) [pid 5455] close(9) = -1 EBADF (Bad file descriptor) [pid 5455] close(10) = -1 EBADF (Bad file descriptor) [pid 5455] close(11) = -1 EBADF (Bad file descriptor) [pid 5455] close(12) = -1 EBADF (Bad file descriptor) [pid 5455] close(13) = -1 EBADF (Bad file descriptor) [pid 5455] close(14) = -1 EBADF (Bad file descriptor) [pid 5455] close(15) = -1 EBADF (Bad file descriptor) [pid 5455] close(16) = -1 EBADF (Bad file descriptor) [pid 5455] close(17) = -1 EBADF (Bad file descriptor) [pid 5455] close(18) = -1 EBADF (Bad file descriptor) [pid 5455] close(19) = -1 EBADF (Bad file descriptor) [pid 5455] close(20) = -1 EBADF (Bad file descriptor) [pid 5455] close(21) = -1 EBADF (Bad file descriptor) [pid 5455] close(22) = -1 EBADF (Bad file descriptor) [pid 5455] close(23) = -1 EBADF (Bad file descriptor) [pid 5455] close(24) = -1 EBADF (Bad file descriptor) [pid 5455] close(25) = -1 EBADF (Bad file descriptor) [pid 5455] close(26) = -1 EBADF (Bad file descriptor) [pid 5455] close(27) = -1 EBADF (Bad file descriptor) [pid 5455] close(28) = -1 EBADF (Bad file descriptor) [pid 5455] close(29) = -1 EBADF (Bad file descriptor) [pid 5455] exit_group(0) = ? [pid 5455] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=205, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./203", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./203/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./203/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./203/binderfs") = 0 [ 129.827109][ T5455] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./203/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./203/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./203/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./203/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./203/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./203/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./203") = 0 [pid 5039] mkdir("./204", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5457 attached , child_tidptr=0x555555e46650) = 206 [pid 5457] set_robust_list(0x555555e46660, 24) = 0 [pid 5457] chdir("./204") = 0 [pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5457] setpgid(0, 0) = 0 [pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5457] write(3, "1000", 4) = 4 [pid 5457] close(3) = 0 [pid 5457] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5457] memfd_create("syzkaller", 0) = 3 [pid 5457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5457] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5457] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5457] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5457] close(3) = 0 [pid 5457] mkdir("./file0", 0777) = 0 [ 129.989980][ T5457] loop0: detected capacity change from 0 to 8192 [ 130.000211][ T5457] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.013442][ T5457] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 130.022922][ T5457] REISERFS (device loop0): using ordered data mode [ 130.029533][ T5457] reiserfs: using flush barriers [pid 5457] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5457] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5457] chdir("./file0") = 0 [pid 5457] ioctl(4, LOOP_CLR_FD) = 0 [pid 5457] close(4) = 0 [pid 5457] mkdir(".", 0777) = -1 EEXIST (File exists) [ 130.036054][ T5457] 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 [ 130.052663][ T5457] REISERFS (device loop0): checking transaction log (loop0) [ 130.061262][ T5457] REISERFS (device loop0): Using r5 hash to sort names [ 130.073642][ T5457] reiserfs: enabling write barrier flush mode [pid 5457] mount(NULL, ".", 0x200000c0, 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 5457] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5457] chdir(".") = 0 [pid 5457] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5457] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5457] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5457] close(3) = 0 [pid 5457] close(4) = 0 [pid 5457] close(5) = 0 [pid 5457] close(6) = -1 EBADF (Bad file descriptor) [pid 5457] close(7) = -1 EBADF (Bad file descriptor) [pid 5457] close(8) = -1 EBADF (Bad file descriptor) [pid 5457] close(9) = -1 EBADF (Bad file descriptor) [pid 5457] close(10) = -1 EBADF (Bad file descriptor) [pid 5457] close(11) = -1 EBADF (Bad file descriptor) [pid 5457] close(12) = -1 EBADF (Bad file descriptor) [pid 5457] close(13) = -1 EBADF (Bad file descriptor) [pid 5457] close(14) = -1 EBADF (Bad file descriptor) [pid 5457] close(15) = -1 EBADF (Bad file descriptor) [pid 5457] close(16) = -1 EBADF (Bad file descriptor) [pid 5457] close(17) = -1 EBADF (Bad file descriptor) [pid 5457] close(18) = -1 EBADF (Bad file descriptor) [pid 5457] close(19) = -1 EBADF (Bad file descriptor) [pid 5457] close(20) = -1 EBADF (Bad file descriptor) [pid 5457] close(21) = -1 EBADF (Bad file descriptor) [pid 5457] close(22) = -1 EBADF (Bad file descriptor) [pid 5457] close(23) = -1 EBADF (Bad file descriptor) [pid 5457] close(24) = -1 EBADF (Bad file descriptor) [pid 5457] close(25) = -1 EBADF (Bad file descriptor) [pid 5457] close(26) = -1 EBADF (Bad file descriptor) [pid 5457] close(27) = -1 EBADF (Bad file descriptor) [pid 5457] close(28) = -1 EBADF (Bad file descriptor) [pid 5457] close(29) = -1 EBADF (Bad file descriptor) [pid 5457] exit_group(0) = ? [pid 5457] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=206, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./204", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./204/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./204/binderfs") = 0 [ 130.084547][ T5457] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./204/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./204/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./204/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./204/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./204/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./204/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./204") = 0 [pid 5039] mkdir("./205", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 207 ./strace-static-x86_64: Process 5459 attached [pid 5459] set_robust_list(0x555555e46660, 24) = 0 [pid 5459] chdir("./205") = 0 [pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5459] setpgid(0, 0) = 0 [pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5459] write(3, "1000", 4) = 4 [pid 5459] close(3) = 0 [pid 5459] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5459] memfd_create("syzkaller", 0) = 3 [pid 5459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5459] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5459] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5459] close(3) = 0 [pid 5459] mkdir("./file0", 0777) = 0 [ 130.270146][ T5459] loop0: detected capacity change from 0 to 8192 [ 130.281014][ T5459] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.294105][ T5459] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 130.303482][ T5459] REISERFS (device loop0): using ordered data mode [ 130.310027][ T5459] reiserfs: using flush barriers [pid 5459] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5459] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5459] chdir("./file0") = 0 [pid 5459] ioctl(4, LOOP_CLR_FD) = 0 [pid 5459] close(4) = 0 [pid 5459] mkdir(".", 0777) = -1 EEXIST (File exists) [ 130.316378][ T5459] 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 [ 130.333077][ T5459] REISERFS (device loop0): checking transaction log (loop0) [ 130.341502][ T5459] REISERFS (device loop0): Using r5 hash to sort names [ 130.351782][ T5459] reiserfs: enabling write barrier flush mode [pid 5459] mount(NULL, ".", 0x200000c0, 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 5459] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5459] chdir(".") = 0 [pid 5459] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5459] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5459] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5459] close(3) = 0 [pid 5459] close(4) = 0 [pid 5459] close(5) = 0 [pid 5459] close(6) = -1 EBADF (Bad file descriptor) [pid 5459] close(7) = -1 EBADF (Bad file descriptor) [pid 5459] close(8) = -1 EBADF (Bad file descriptor) [pid 5459] close(9) = -1 EBADF (Bad file descriptor) [pid 5459] close(10) = -1 EBADF (Bad file descriptor) [pid 5459] close(11) = -1 EBADF (Bad file descriptor) [pid 5459] close(12) = -1 EBADF (Bad file descriptor) [pid 5459] close(13) = -1 EBADF (Bad file descriptor) [pid 5459] close(14) = -1 EBADF (Bad file descriptor) [pid 5459] close(15) = -1 EBADF (Bad file descriptor) [pid 5459] close(16) = -1 EBADF (Bad file descriptor) [pid 5459] close(17) = -1 EBADF (Bad file descriptor) [pid 5459] close(18) = -1 EBADF (Bad file descriptor) [pid 5459] close(19) = -1 EBADF (Bad file descriptor) [pid 5459] close(20) = -1 EBADF (Bad file descriptor) [pid 5459] close(21) = -1 EBADF (Bad file descriptor) [pid 5459] close(22) = -1 EBADF (Bad file descriptor) [pid 5459] close(23) = -1 EBADF (Bad file descriptor) [pid 5459] close(24) = -1 EBADF (Bad file descriptor) [pid 5459] close(25) = -1 EBADF (Bad file descriptor) [pid 5459] close(26) = -1 EBADF (Bad file descriptor) [pid 5459] close(27) = -1 EBADF (Bad file descriptor) [pid 5459] close(28) = -1 EBADF (Bad file descriptor) [pid 5459] close(29) = -1 EBADF (Bad file descriptor) [pid 5459] exit_group(0) = ? [pid 5459] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=207, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] umount2("./205", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./205/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 130.362531][ T5459] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] unlink("./205/binderfs") = 0 [pid 5039] umount2("./205/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./205/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./205/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./205/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./205/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./205/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./205") = 0 [pid 5039] mkdir("./206", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 208 ./strace-static-x86_64: Process 5461 attached [pid 5461] set_robust_list(0x555555e46660, 24) = 0 [pid 5461] chdir("./206") = 0 [pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5461] setpgid(0, 0) = 0 [pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5461] write(3, "1000", 4) = 4 [pid 5461] close(3) = 0 [pid 5461] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5461] memfd_create("syzkaller", 0) = 3 [pid 5461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5461] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5461] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5461] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5461] close(3) = 0 [pid 5461] mkdir("./file0", 0777) = 0 [ 130.542723][ T5461] loop0: detected capacity change from 0 to 8192 [ 130.553648][ T5461] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.566717][ T5461] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 130.576032][ T5461] REISERFS (device loop0): using ordered data mode [ 130.582556][ T5461] reiserfs: using flush barriers [pid 5461] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5461] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5461] chdir("./file0") = 0 [pid 5461] ioctl(4, LOOP_CLR_FD) = 0 [pid 5461] close(4) = 0 [pid 5461] mkdir(".", 0777) = -1 EEXIST (File exists) [ 130.589078][ T5461] 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 [ 130.605723][ T5461] REISERFS (device loop0): checking transaction log (loop0) [ 130.613892][ T5461] REISERFS (device loop0): Using r5 hash to sort names [ 130.634302][ T5461] reiserfs: enabling write barrier flush mode [pid 5461] mount(NULL, ".", 0x200000c0, 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 5461] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5461] chdir(".") = 0 [pid 5461] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5461] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5461] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5461] close(3) = 0 [pid 5461] close(4) = 0 [pid 5461] close(5) = 0 [pid 5461] close(6) = -1 EBADF (Bad file descriptor) [pid 5461] close(7) = -1 EBADF (Bad file descriptor) [pid 5461] close(8) = -1 EBADF (Bad file descriptor) [pid 5461] close(9) = -1 EBADF (Bad file descriptor) [pid 5461] close(10) = -1 EBADF (Bad file descriptor) [pid 5461] close(11) = -1 EBADF (Bad file descriptor) [pid 5461] close(12) = -1 EBADF (Bad file descriptor) [pid 5461] close(13) = -1 EBADF (Bad file descriptor) [pid 5461] close(14) = -1 EBADF (Bad file descriptor) [pid 5461] close(15) = -1 EBADF (Bad file descriptor) [pid 5461] close(16) = -1 EBADF (Bad file descriptor) [pid 5461] close(17) = -1 EBADF (Bad file descriptor) [pid 5461] close(18) = -1 EBADF (Bad file descriptor) [pid 5461] close(19) = -1 EBADF (Bad file descriptor) [pid 5461] close(20) = -1 EBADF (Bad file descriptor) [pid 5461] close(21) = -1 EBADF (Bad file descriptor) [pid 5461] close(22) = -1 EBADF (Bad file descriptor) [pid 5461] close(23) = -1 EBADF (Bad file descriptor) [pid 5461] close(24) = -1 EBADF (Bad file descriptor) [pid 5461] close(25) = -1 EBADF (Bad file descriptor) [pid 5461] close(26) = -1 EBADF (Bad file descriptor) [pid 5461] close(27) = -1 EBADF (Bad file descriptor) [pid 5461] close(28) = -1 EBADF (Bad file descriptor) [pid 5461] close(29) = -1 EBADF (Bad file descriptor) [pid 5461] exit_group(0) = ? [pid 5461] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=208, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./206", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./206/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./206/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./206/binderfs") = 0 [ 130.645952][ T5461] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./206/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./206/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./206/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./206/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./206/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./206/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./206") = 0 [pid 5039] mkdir("./207", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 209 ./strace-static-x86_64: Process 5463 attached [pid 5463] set_robust_list(0x555555e46660, 24) = 0 [pid 5463] chdir("./207") = 0 [pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5463] setpgid(0, 0) = 0 [pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5463] write(3, "1000", 4) = 4 [pid 5463] close(3) = 0 [pid 5463] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5463] memfd_create("syzkaller", 0) = 3 [pid 5463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5463] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5463] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5463] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5463] close(3) = 0 [pid 5463] mkdir("./file0", 0777) = 0 [ 130.808830][ T5463] loop0: detected capacity change from 0 to 8192 [ 130.819931][ T5463] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.832999][ T5463] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 130.842507][ T5463] REISERFS (device loop0): using ordered data mode [ 130.849118][ T5463] reiserfs: using flush barriers [pid 5463] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5463] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5463] chdir("./file0") = 0 [pid 5463] ioctl(4, LOOP_CLR_FD) = 0 [pid 5463] close(4) = 0 [pid 5463] mkdir(".", 0777) = -1 EEXIST (File exists) [ 130.855644][ T5463] 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 [ 130.872281][ T5463] REISERFS (device loop0): checking transaction log (loop0) [ 130.880774][ T5463] REISERFS (device loop0): Using r5 hash to sort names [ 130.892172][ T5463] reiserfs: enabling write barrier flush mode [pid 5463] mount(NULL, ".", 0x200000c0, 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 5463] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5463] chdir(".") = 0 [pid 5463] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5463] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5463] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5463] close(3) = 0 [pid 5463] close(4) = 0 [pid 5463] close(5) = 0 [pid 5463] close(6) = -1 EBADF (Bad file descriptor) [pid 5463] close(7) = -1 EBADF (Bad file descriptor) [pid 5463] close(8) = -1 EBADF (Bad file descriptor) [pid 5463] close(9) = -1 EBADF (Bad file descriptor) [pid 5463] close(10) = -1 EBADF (Bad file descriptor) [pid 5463] close(11) = -1 EBADF (Bad file descriptor) [pid 5463] close(12) = -1 EBADF (Bad file descriptor) [pid 5463] close(13) = -1 EBADF (Bad file descriptor) [pid 5463] close(14) = -1 EBADF (Bad file descriptor) [pid 5463] close(15) = -1 EBADF (Bad file descriptor) [pid 5463] close(16) = -1 EBADF (Bad file descriptor) [pid 5463] close(17) = -1 EBADF (Bad file descriptor) [pid 5463] close(18) = -1 EBADF (Bad file descriptor) [pid 5463] close(19) = -1 EBADF (Bad file descriptor) [pid 5463] close(20) = -1 EBADF (Bad file descriptor) [pid 5463] close(21) = -1 EBADF (Bad file descriptor) [pid 5463] close(22) = -1 EBADF (Bad file descriptor) [pid 5463] close(23) = -1 EBADF (Bad file descriptor) [pid 5463] close(24) = -1 EBADF (Bad file descriptor) [pid 5463] close(25) = -1 EBADF (Bad file descriptor) [pid 5463] close(26) = -1 EBADF (Bad file descriptor) [pid 5463] close(27) = -1 EBADF (Bad file descriptor) [pid 5463] close(28) = -1 EBADF (Bad file descriptor) [pid 5463] close(29) = -1 EBADF (Bad file descriptor) [pid 5463] exit_group(0) = ? [pid 5463] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=209, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./207", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./207/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 130.903344][ T5463] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] newfstatat(AT_FDCWD, "./207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./207/binderfs") = 0 [pid 5039] umount2("./207/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./207/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./207/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./207/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./207/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./207/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./207") = 0 [pid 5039] mkdir("./208", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5465 attached , child_tidptr=0x555555e46650) = 210 [pid 5465] set_robust_list(0x555555e46660, 24) = 0 [pid 5465] chdir("./208") = 0 [pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5465] setpgid(0, 0) = 0 [pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5465] write(3, "1000", 4) = 4 [pid 5465] close(3) = 0 [pid 5465] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5465] memfd_create("syzkaller", 0) = 3 [pid 5465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5465] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5465] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5465] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5465] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5465] close(3) = 0 [pid 5465] mkdir("./file0", 0777) = 0 [ 131.071203][ T5465] loop0: detected capacity change from 0 to 8192 [ 131.081818][ T5465] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.095000][ T5465] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 131.104404][ T5465] REISERFS (device loop0): using ordered data mode [ 131.111061][ T5465] reiserfs: using flush barriers [pid 5465] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5465] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5465] chdir("./file0") = 0 [pid 5465] ioctl(4, LOOP_CLR_FD) = 0 [pid 5465] close(4) = 0 [pid 5465] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5465] mount(NULL, ".", 0x200000c0, 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 5465] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5465] chdir(".") = 0 [pid 5465] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5465] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5465] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5465] close(3) = 0 [pid 5465] close(4) = 0 [pid 5465] close(5) = 0 [pid 5465] close(6) = -1 EBADF (Bad file descriptor) [pid 5465] close(7) = -1 EBADF (Bad file descriptor) [pid 5465] close(8) = -1 EBADF (Bad file descriptor) [pid 5465] close(9) = -1 EBADF (Bad file descriptor) [pid 5465] close(10) = -1 EBADF (Bad file descriptor) [pid 5465] close(11) = -1 EBADF (Bad file descriptor) [pid 5465] close(12) = -1 EBADF (Bad file descriptor) [pid 5465] close(13) = -1 EBADF (Bad file descriptor) [pid 5465] close(14) = -1 EBADF (Bad file descriptor) [pid 5465] close(15) = -1 EBADF (Bad file descriptor) [pid 5465] close(16) = -1 EBADF (Bad file descriptor) [pid 5465] close(17) = -1 EBADF (Bad file descriptor) [pid 5465] close(18) = -1 EBADF (Bad file descriptor) [pid 5465] close(19) = -1 EBADF (Bad file descriptor) [pid 5465] close(20) = -1 EBADF (Bad file descriptor) [pid 5465] close(21) = -1 EBADF (Bad file descriptor) [pid 5465] close(22) = -1 EBADF (Bad file descriptor) [pid 5465] close(23) = -1 EBADF (Bad file descriptor) [pid 5465] close(24) = -1 EBADF (Bad file descriptor) [pid 5465] close(25) = -1 EBADF (Bad file descriptor) [pid 5465] close(26) = -1 EBADF (Bad file descriptor) [pid 5465] close(27) = -1 EBADF (Bad file descriptor) [pid 5465] close(28) = -1 EBADF (Bad file descriptor) [pid 5465] close(29) = -1 EBADF (Bad file descriptor) [pid 5465] exit_group(0) = ? [pid 5465] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=210, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./208", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./208/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./208/binderfs") = 0 [ 131.117411][ T5465] 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 [ 131.134036][ T5465] REISERFS (device loop0): checking transaction log (loop0) [ 131.142485][ T5465] REISERFS (device loop0): Using r5 hash to sort names [ 131.152987][ T5465] reiserfs: enabling write barrier flush mode [ 131.161441][ T5465] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./208/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./208/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./208/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./208/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./208/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./208/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./208") = 0 [pid 5039] mkdir("./209", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5467 attached [pid 5467] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 211 [pid 5467] <... set_robust_list resumed>) = 0 [pid 5467] chdir("./209") = 0 [pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5467] setpgid(0, 0) = 0 [pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5467] write(3, "1000", 4) = 4 [pid 5467] close(3) = 0 [pid 5467] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5467] memfd_create("syzkaller", 0) = 3 [pid 5467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5467] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5467] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5467] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5467] close(3) = 0 [pid 5467] mkdir("./file0", 0777) = 0 [ 131.308014][ T5467] loop0: detected capacity change from 0 to 8192 [ 131.319165][ T5467] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.332212][ T5467] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 131.341592][ T5467] REISERFS (device loop0): using ordered data mode [ 131.348238][ T5467] reiserfs: using flush barriers [pid 5467] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5467] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5467] chdir("./file0") = 0 [pid 5467] ioctl(4, LOOP_CLR_FD) = 0 [pid 5467] close(4) = 0 [pid 5467] mkdir(".", 0777) = -1 EEXIST (File exists) [ 131.354534][ T5467] 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 [ 131.371250][ T5467] REISERFS (device loop0): checking transaction log (loop0) [ 131.380269][ T5467] REISERFS (device loop0): Using r5 hash to sort names [ 131.391598][ T5467] reiserfs: enabling write barrier flush mode [pid 5467] mount(NULL, ".", 0x200000c0, 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 5467] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5467] chdir(".") = 0 [pid 5467] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5467] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5467] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5467] close(3) = 0 [pid 5467] close(4) = 0 [pid 5467] close(5) = 0 [pid 5467] close(6) = -1 EBADF (Bad file descriptor) [pid 5467] close(7) = -1 EBADF (Bad file descriptor) [pid 5467] close(8) = -1 EBADF (Bad file descriptor) [pid 5467] close(9) = -1 EBADF (Bad file descriptor) [pid 5467] close(10) = -1 EBADF (Bad file descriptor) [pid 5467] close(11) = -1 EBADF (Bad file descriptor) [pid 5467] close(12) = -1 EBADF (Bad file descriptor) [pid 5467] close(13) = -1 EBADF (Bad file descriptor) [pid 5467] close(14) = -1 EBADF (Bad file descriptor) [pid 5467] close(15) = -1 EBADF (Bad file descriptor) [pid 5467] close(16) = -1 EBADF (Bad file descriptor) [pid 5467] close(17) = -1 EBADF (Bad file descriptor) [pid 5467] close(18) = -1 EBADF (Bad file descriptor) [pid 5467] close(19) = -1 EBADF (Bad file descriptor) [pid 5467] close(20) = -1 EBADF (Bad file descriptor) [pid 5467] close(21) = -1 EBADF (Bad file descriptor) [pid 5467] close(22) = -1 EBADF (Bad file descriptor) [pid 5467] close(23) = -1 EBADF (Bad file descriptor) [pid 5467] close(24) = -1 EBADF (Bad file descriptor) [pid 5467] close(25) = -1 EBADF (Bad file descriptor) [pid 5467] close(26) = -1 EBADF (Bad file descriptor) [pid 5467] close(27) = -1 EBADF (Bad file descriptor) [pid 5467] close(28) = -1 EBADF (Bad file descriptor) [pid 5467] close(29) = -1 EBADF (Bad file descriptor) [pid 5467] exit_group(0) = ? [pid 5467] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=211, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./209", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./209/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./209/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./209/binderfs") = 0 [ 131.401639][ T5467] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./209/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./209/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./209/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./209/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./209/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./209/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./209") = 0 [pid 5039] mkdir("./210", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5469 attached , child_tidptr=0x555555e46650) = 212 [pid 5469] set_robust_list(0x555555e46660, 24) = 0 [pid 5469] chdir("./210") = 0 [pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5469] setpgid(0, 0) = 0 [pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5469] write(3, "1000", 4) = 4 [pid 5469] close(3) = 0 [pid 5469] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5469] memfd_create("syzkaller", 0) = 3 [pid 5469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5469] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5469] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5469] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5469] close(3) = 0 [pid 5469] mkdir("./file0", 0777) = 0 [ 131.560948][ T5469] loop0: detected capacity change from 0 to 8192 [ 131.572091][ T5469] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.585174][ T5469] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 131.594401][ T5469] REISERFS (device loop0): using ordered data mode [ 131.601359][ T5469] reiserfs: using flush barriers [pid 5469] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5469] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5469] chdir("./file0") = 0 [pid 5469] ioctl(4, LOOP_CLR_FD) = 0 [pid 5469] close(4) = 0 [pid 5469] mkdir(".", 0777) = -1 EEXIST (File exists) [ 131.607714][ T5469] 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 [ 131.624437][ T5469] REISERFS (device loop0): checking transaction log (loop0) [ 131.632563][ T5469] REISERFS (device loop0): Using r5 hash to sort names [ 131.643080][ T5469] reiserfs: enabling write barrier flush mode [pid 5469] mount(NULL, ".", 0x200000c0, 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 5469] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5469] chdir(".") = 0 [pid 5469] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5469] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5469] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5469] close(3) = 0 [pid 5469] close(4) = 0 [pid 5469] close(5) = 0 [pid 5469] close(6) = -1 EBADF (Bad file descriptor) [pid 5469] close(7) = -1 EBADF (Bad file descriptor) [pid 5469] close(8) = -1 EBADF (Bad file descriptor) [pid 5469] close(9) = -1 EBADF (Bad file descriptor) [pid 5469] close(10) = -1 EBADF (Bad file descriptor) [pid 5469] close(11) = -1 EBADF (Bad file descriptor) [pid 5469] close(12) = -1 EBADF (Bad file descriptor) [pid 5469] close(13) = -1 EBADF (Bad file descriptor) [pid 5469] close(14) = -1 EBADF (Bad file descriptor) [pid 5469] close(15) = -1 EBADF (Bad file descriptor) [pid 5469] close(16) = -1 EBADF (Bad file descriptor) [pid 5469] close(17) = -1 EBADF (Bad file descriptor) [pid 5469] close(18) = -1 EBADF (Bad file descriptor) [pid 5469] close(19) = -1 EBADF (Bad file descriptor) [pid 5469] close(20) = -1 EBADF (Bad file descriptor) [pid 5469] close(21) = -1 EBADF (Bad file descriptor) [pid 5469] close(22) = -1 EBADF (Bad file descriptor) [pid 5469] close(23) = -1 EBADF (Bad file descriptor) [pid 5469] close(24) = -1 EBADF (Bad file descriptor) [pid 5469] close(25) = -1 EBADF (Bad file descriptor) [pid 5469] close(26) = -1 EBADF (Bad file descriptor) [pid 5469] close(27) = -1 EBADF (Bad file descriptor) [pid 5469] close(28) = -1 EBADF (Bad file descriptor) [pid 5469] close(29) = -1 EBADF (Bad file descriptor) [pid 5469] exit_group(0) = ? [pid 5469] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=212, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./210", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./210/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./210/binderfs") = 0 [ 131.659803][ T5469] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./210/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./210/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./210/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./210/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./210/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./210/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./210") = 0 [pid 5039] mkdir("./211", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5471 attached , child_tidptr=0x555555e46650) = 213 [pid 5471] set_robust_list(0x555555e46660, 24) = 0 [pid 5471] chdir("./211") = 0 [pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5471] setpgid(0, 0) = 0 [pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5471] write(3, "1000", 4) = 4 [pid 5471] close(3) = 0 [pid 5471] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5471] memfd_create("syzkaller", 0) = 3 [pid 5471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5471] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5471] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5471] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5471] close(3) = 0 [pid 5471] mkdir("./file0", 0777) = 0 [ 131.818680][ T5471] loop0: detected capacity change from 0 to 8192 [ 131.829843][ T5471] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.843463][ T5471] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 131.853015][ T5471] REISERFS (device loop0): using ordered data mode [ 131.859809][ T5471] reiserfs: using flush barriers [pid 5471] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5471] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5471] chdir("./file0") = 0 [pid 5471] ioctl(4, LOOP_CLR_FD) = 0 [pid 5471] close(4) = 0 [pid 5471] mkdir(".", 0777) = -1 EEXIST (File exists) [ 131.866168][ T5471] 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 [ 131.882812][ T5471] REISERFS (device loop0): checking transaction log (loop0) [ 131.891116][ T5471] REISERFS (device loop0): Using r5 hash to sort names [ 131.906393][ T5471] reiserfs: enabling write barrier flush mode [pid 5471] mount(NULL, ".", 0x200000c0, 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 5471] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5471] chdir(".") = 0 [pid 5471] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5471] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5471] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5471] close(3) = 0 [pid 5471] close(4) = 0 [pid 5471] close(5) = 0 [pid 5471] close(6) = -1 EBADF (Bad file descriptor) [pid 5471] close(7) = -1 EBADF (Bad file descriptor) [pid 5471] close(8) = -1 EBADF (Bad file descriptor) [pid 5471] close(9) = -1 EBADF (Bad file descriptor) [pid 5471] close(10) = -1 EBADF (Bad file descriptor) [pid 5471] close(11) = -1 EBADF (Bad file descriptor) [pid 5471] close(12) = -1 EBADF (Bad file descriptor) [pid 5471] close(13) = -1 EBADF (Bad file descriptor) [pid 5471] close(14) = -1 EBADF (Bad file descriptor) [pid 5471] close(15) = -1 EBADF (Bad file descriptor) [pid 5471] close(16) = -1 EBADF (Bad file descriptor) [pid 5471] close(17) = -1 EBADF (Bad file descriptor) [pid 5471] close(18) = -1 EBADF (Bad file descriptor) [pid 5471] close(19) = -1 EBADF (Bad file descriptor) [pid 5471] close(20) = -1 EBADF (Bad file descriptor) [pid 5471] close(21) = -1 EBADF (Bad file descriptor) [pid 5471] close(22) = -1 EBADF (Bad file descriptor) [pid 5471] close(23) = -1 EBADF (Bad file descriptor) [pid 5471] close(24) = -1 EBADF (Bad file descriptor) [pid 5471] close(25) = -1 EBADF (Bad file descriptor) [pid 5471] close(26) = -1 EBADF (Bad file descriptor) [pid 5471] close(27) = -1 EBADF (Bad file descriptor) [pid 5471] close(28) = -1 EBADF (Bad file descriptor) [pid 5471] close(29) = -1 EBADF (Bad file descriptor) [pid 5471] exit_group(0) = ? [pid 5471] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=213, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./211", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./211/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./211/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./211/binderfs") = 0 [ 131.916879][ T5471] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./211/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./211/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./211/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./211/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./211/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./211/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./211") = 0 [pid 5039] mkdir("./212", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5474 attached , child_tidptr=0x555555e46650) = 214 [pid 5474] set_robust_list(0x555555e46660, 24) = 0 [pid 5474] chdir("./212") = 0 [pid 5474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5474] setpgid(0, 0) = 0 [pid 5474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5474] write(3, "1000", 4) = 4 [pid 5474] close(3) = 0 [pid 5474] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5474] memfd_create("syzkaller", 0) = 3 [pid 5474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5474] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5474] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5474] close(3) = 0 [pid 5474] mkdir("./file0", 0777) = 0 [ 132.116887][ T5474] loop0: detected capacity change from 0 to 8192 [ 132.127423][ T5474] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.140486][ T5474] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 132.149881][ T5474] REISERFS (device loop0): using ordered data mode [ 132.156462][ T5474] reiserfs: using flush barriers [pid 5474] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5474] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5474] chdir("./file0") = 0 [pid 5474] ioctl(4, LOOP_CLR_FD) = 0 [pid 5474] close(4) = 0 [pid 5474] mkdir(".", 0777) = -1 EEXIST (File exists) [ 132.163168][ T5474] 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 [ 132.179948][ T5474] REISERFS (device loop0): checking transaction log (loop0) [ 132.188708][ T5474] REISERFS (device loop0): Using r5 hash to sort names [ 132.199514][ T5474] reiserfs: enabling write barrier flush mode [pid 5474] mount(NULL, ".", 0x200000c0, 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 5474] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5474] chdir(".") = 0 [pid 5474] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5474] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5474] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5474] close(3) = 0 [pid 5474] close(4) = 0 [pid 5474] close(5) = 0 [pid 5474] close(6) = -1 EBADF (Bad file descriptor) [pid 5474] close(7) = -1 EBADF (Bad file descriptor) [pid 5474] close(8) = -1 EBADF (Bad file descriptor) [pid 5474] close(9) = -1 EBADF (Bad file descriptor) [pid 5474] close(10) = -1 EBADF (Bad file descriptor) [pid 5474] close(11) = -1 EBADF (Bad file descriptor) [pid 5474] close(12) = -1 EBADF (Bad file descriptor) [pid 5474] close(13) = -1 EBADF (Bad file descriptor) [pid 5474] close(14) = -1 EBADF (Bad file descriptor) [pid 5474] close(15) = -1 EBADF (Bad file descriptor) [pid 5474] close(16) = -1 EBADF (Bad file descriptor) [pid 5474] close(17) = -1 EBADF (Bad file descriptor) [pid 5474] close(18) = -1 EBADF (Bad file descriptor) [pid 5474] close(19) = -1 EBADF (Bad file descriptor) [pid 5474] close(20) = -1 EBADF (Bad file descriptor) [pid 5474] close(21) = -1 EBADF (Bad file descriptor) [pid 5474] close(22) = -1 EBADF (Bad file descriptor) [pid 5474] close(23) = -1 EBADF (Bad file descriptor) [pid 5474] close(24) = -1 EBADF (Bad file descriptor) [pid 5474] close(25) = -1 EBADF (Bad file descriptor) [pid 5474] close(26) = -1 EBADF (Bad file descriptor) [pid 5474] close(27) = -1 EBADF (Bad file descriptor) [pid 5474] close(28) = -1 EBADF (Bad file descriptor) [pid 5474] close(29) = -1 EBADF (Bad file descriptor) [pid 5474] exit_group(0) = ? [pid 5474] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=214, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./212", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./212", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./212/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./212/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./212/binderfs") = 0 [ 132.209836][ T5474] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./212/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./212/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./212/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./212/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./212/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./212/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./212") = 0 [pid 5039] mkdir("./213", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 215 ./strace-static-x86_64: Process 5476 attached [pid 5476] set_robust_list(0x555555e46660, 24) = 0 [pid 5476] chdir("./213") = 0 [pid 5476] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5476] setpgid(0, 0) = 0 [pid 5476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5476] write(3, "1000", 4) = 4 [pid 5476] close(3) = 0 [pid 5476] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5476] memfd_create("syzkaller", 0) = 3 [pid 5476] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5476] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5476] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5476] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5476] close(3) = 0 [pid 5476] mkdir("./file0", 0777) = 0 [ 132.381266][ T5476] loop0: detected capacity change from 0 to 8192 [ 132.391586][ T5476] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.404646][ T5476] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 132.413959][ T5476] REISERFS (device loop0): using ordered data mode [ 132.420629][ T5476] reiserfs: using flush barriers [pid 5476] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5476] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5476] chdir("./file0") = 0 [pid 5476] ioctl(4, LOOP_CLR_FD) = 0 [pid 5476] close(4) = 0 [pid 5476] mkdir(".", 0777) = -1 EEXIST (File exists) [ 132.426990][ T5476] 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 [ 132.443751][ T5476] REISERFS (device loop0): checking transaction log (loop0) [ 132.452067][ T5476] REISERFS (device loop0): Using r5 hash to sort names [ 132.463937][ T5476] reiserfs: enabling write barrier flush mode [pid 5476] mount(NULL, ".", 0x200000c0, 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 5476] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5476] chdir(".") = 0 [pid 5476] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5476] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5476] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5476] close(3) = 0 [pid 5476] close(4) = 0 [pid 5476] close(5) = 0 [pid 5476] close(6) = -1 EBADF (Bad file descriptor) [pid 5476] close(7) = -1 EBADF (Bad file descriptor) [pid 5476] close(8) = -1 EBADF (Bad file descriptor) [pid 5476] close(9) = -1 EBADF (Bad file descriptor) [pid 5476] close(10) = -1 EBADF (Bad file descriptor) [pid 5476] close(11) = -1 EBADF (Bad file descriptor) [pid 5476] close(12) = -1 EBADF (Bad file descriptor) [pid 5476] close(13) = -1 EBADF (Bad file descriptor) [pid 5476] close(14) = -1 EBADF (Bad file descriptor) [pid 5476] close(15) = -1 EBADF (Bad file descriptor) [pid 5476] close(16) = -1 EBADF (Bad file descriptor) [pid 5476] close(17) = -1 EBADF (Bad file descriptor) [pid 5476] close(18) = -1 EBADF (Bad file descriptor) [pid 5476] close(19) = -1 EBADF (Bad file descriptor) [pid 5476] close(20) = -1 EBADF (Bad file descriptor) [pid 5476] close(21) = -1 EBADF (Bad file descriptor) [pid 5476] close(22) = -1 EBADF (Bad file descriptor) [pid 5476] close(23) = -1 EBADF (Bad file descriptor) [pid 5476] close(24) = -1 EBADF (Bad file descriptor) [pid 5476] close(25) = -1 EBADF (Bad file descriptor) [pid 5476] close(26) = -1 EBADF (Bad file descriptor) [pid 5476] close(27) = -1 EBADF (Bad file descriptor) [pid 5476] close(28) = -1 EBADF (Bad file descriptor) [pid 5476] close(29) = -1 EBADF (Bad file descriptor) [pid 5476] exit_group(0) = ? [pid 5476] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=215, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5039] umount2("./213", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./213", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./213/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./213/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./213/binderfs") = 0 [ 132.473671][ T5476] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./213/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./213/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./213/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./213/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./213/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./213/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./213") = 0 [pid 5039] mkdir("./214", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 216 ./strace-static-x86_64: Process 5478 attached [pid 5478] set_robust_list(0x555555e46660, 24) = 0 [pid 5478] chdir("./214") = 0 [pid 5478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5478] setpgid(0, 0) = 0 [pid 5478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5478] write(3, "1000", 4) = 4 [pid 5478] close(3) = 0 [pid 5478] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5478] memfd_create("syzkaller", 0) = 3 [pid 5478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5478] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5478] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5478] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5478] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5478] close(3) = 0 [pid 5478] mkdir("./file0", 0777) = 0 [ 132.646019][ T5478] loop0: detected capacity change from 0 to 8192 [ 132.656714][ T5478] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.669755][ T5478] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 132.679315][ T5478] REISERFS (device loop0): using ordered data mode [ 132.686044][ T5478] reiserfs: using flush barriers [pid 5478] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5478] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5478] chdir("./file0") = 0 [pid 5478] ioctl(4, LOOP_CLR_FD) = 0 [pid 5478] close(4) = 0 [pid 5478] mkdir(".", 0777) = -1 EEXIST (File exists) [ 132.692555][ T5478] 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 [ 132.709563][ T5478] REISERFS (device loop0): checking transaction log (loop0) [ 132.717959][ T5478] REISERFS (device loop0): Using r5 hash to sort names [ 132.729830][ T5478] reiserfs: enabling write barrier flush mode [pid 5478] mount(NULL, ".", 0x200000c0, 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 5478] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5478] chdir(".") = 0 [pid 5478] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5478] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5478] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5478] close(3) = 0 [pid 5478] close(4) = 0 [pid 5478] close(5) = 0 [pid 5478] close(6) = -1 EBADF (Bad file descriptor) [pid 5478] close(7) = -1 EBADF (Bad file descriptor) [pid 5478] close(8) = -1 EBADF (Bad file descriptor) [pid 5478] close(9) = -1 EBADF (Bad file descriptor) [pid 5478] close(10) = -1 EBADF (Bad file descriptor) [pid 5478] close(11) = -1 EBADF (Bad file descriptor) [pid 5478] close(12) = -1 EBADF (Bad file descriptor) [pid 5478] close(13) = -1 EBADF (Bad file descriptor) [pid 5478] close(14) = -1 EBADF (Bad file descriptor) [pid 5478] close(15) = -1 EBADF (Bad file descriptor) [pid 5478] close(16) = -1 EBADF (Bad file descriptor) [pid 5478] close(17) = -1 EBADF (Bad file descriptor) [pid 5478] close(18) = -1 EBADF (Bad file descriptor) [pid 5478] close(19) = -1 EBADF (Bad file descriptor) [pid 5478] close(20) = -1 EBADF (Bad file descriptor) [pid 5478] close(21) = -1 EBADF (Bad file descriptor) [pid 5478] close(22) = -1 EBADF (Bad file descriptor) [pid 5478] close(23) = -1 EBADF (Bad file descriptor) [pid 5478] close(24) = -1 EBADF (Bad file descriptor) [pid 5478] close(25) = -1 EBADF (Bad file descriptor) [pid 5478] close(26) = -1 EBADF (Bad file descriptor) [pid 5478] close(27) = -1 EBADF (Bad file descriptor) [pid 5478] close(28) = -1 EBADF (Bad file descriptor) [pid 5478] close(29) = -1 EBADF (Bad file descriptor) [pid 5478] exit_group(0) = ? [pid 5478] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=216, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./214", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./214", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./214/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./214/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./214/binderfs") = 0 [ 132.741623][ T5478] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./214/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./214/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./214/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./214/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./214/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./214/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./214") = 0 [pid 5039] mkdir("./215", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 217 ./strace-static-x86_64: Process 5480 attached [pid 5480] set_robust_list(0x555555e46660, 24) = 0 [pid 5480] chdir("./215") = 0 [pid 5480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5480] setpgid(0, 0) = 0 [pid 5480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5480] write(3, "1000", 4) = 4 [pid 5480] close(3) = 0 [pid 5480] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5480] memfd_create("syzkaller", 0) = 3 [pid 5480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5480] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5480] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5480] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5480] close(3) = 0 [pid 5480] mkdir("./file0", 0777) = 0 [ 132.911463][ T5480] loop0: detected capacity change from 0 to 8192 [ 132.922051][ T5480] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.935141][ T5480] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 132.944341][ T5480] REISERFS (device loop0): using ordered data mode [ 132.951049][ T5480] reiserfs: using flush barriers [pid 5480] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5480] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5480] chdir("./file0") = 0 [pid 5480] ioctl(4, LOOP_CLR_FD) = 0 [pid 5480] close(4) = 0 [pid 5480] mkdir(".", 0777) = -1 EEXIST (File exists) [ 132.957737][ T5480] 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 [ 132.974549][ T5480] REISERFS (device loop0): checking transaction log (loop0) [ 132.983062][ T5480] REISERFS (device loop0): Using r5 hash to sort names [ 132.997602][ T5480] reiserfs: enabling write barrier flush mode [pid 5480] mount(NULL, ".", 0x200000c0, 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 5480] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5480] chdir(".") = 0 [pid 5480] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5480] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [ 133.009199][ T5480] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 133.028549][ T5480] [ 133.030938][ T5480] ====================================================== [ 133.037953][ T5480] WARNING: possible circular locking dependency detected [ 133.044965][ T5480] 6.6.0-rc3-syzkaller-00165-g3b517966c561 #0 Not tainted [ 133.051993][ T5480] ------------------------------------------------------ [ 133.059095][ T5480] syz-executor326/5480 is trying to acquire lock: [ 133.065513][ T5480] ffff888024369090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 [ 133.074506][ T5480] [ 133.074506][ T5480] but task is already holding lock: [ 133.081915][ T5480] ffff888017306a20 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17b/0x410 [ 133.090924][ T5480] [ 133.090924][ T5480] which lock already depends on the new lock. [ 133.090924][ T5480] [ 133.101341][ T5480] [ 133.101341][ T5480] the existing dependency chain (in reverse order) is: [ 133.110381][ T5480] [ 133.110381][ T5480] -> #1 (&mm->mmap_lock){++++}-{3:3}: [ 133.117948][ T5480] __might_fault+0xc1/0x120 [ 133.122984][ T5480] reiserfs_ioctl+0x125/0x2f0 [ 133.128188][ T5480] __se_sys_ioctl+0xf8/0x170 [ 133.133307][ T5480] do_syscall_64+0x41/0xc0 [ 133.138251][ T5480] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 133.144700][ T5480] [ 133.144700][ T5480] -> #0 (&sbi->lock){+.+.}-{3:3}: [ 133.151913][ T5480] __lock_acquire+0x39ff/0x7f70 [ 133.157287][ T5480] lock_acquire+0x1e3/0x520 [ 133.162577][ T5480] __mutex_lock+0x136/0xd60 [ 133.167657][ T5480] reiserfs_write_lock+0x7a/0xd0 [ 133.173131][ T5480] reiserfs_dirty_inode+0xf2/0x240 [ 133.178780][ T5480] __mark_inode_dirty+0x305/0xd90 [ 133.184347][ T5480] touch_atime+0x34d/0x590 [ 133.189294][ T5480] generic_file_mmap+0xc6/0x120 [ 133.194668][ T5480] mmap_region+0xfd0/0x2280 [ 133.199692][ T5480] do_mmap+0x8d3/0xfa0 [ 133.204298][ T5480] vm_mmap_pgoff+0x1dc/0x410 [ 133.209412][ T5480] ksys_mmap_pgoff+0x4ff/0x6d0 [ 133.214701][ T5480] do_syscall_64+0x41/0xc0 [ 133.219647][ T5480] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 133.226076][ T5480] [ 133.226076][ T5480] other info that might help us debug this: [ 133.226076][ T5480] [ 133.236389][ T5480] Possible unsafe locking scenario: [ 133.236389][ T5480] [ 133.243840][ T5480] CPU0 CPU1 [ 133.249209][ T5480] ---- ---- [ 133.254566][ T5480] lock(&mm->mmap_lock); [ 133.258981][ T5480] lock(&sbi->lock); [ 133.265495][ T5480] lock(&mm->mmap_lock); [ 133.272448][ T5480] lock(&sbi->lock); [ 133.276432][ T5480] [ 133.276432][ T5480] *** DEADLOCK *** [ 133.276432][ T5480] [ 133.284568][ T5480] 2 locks held by syz-executor326/5480: [ 133.290115][ T5480] #0: ffff888017306a20 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17b/0x410 [ 133.299555][ T5480] #1: ffff8880796ee410 (sb_writers#9){.+.+}-{0:0}, at: generic_file_mmap+0xc6/0x120 [ 133.309052][ T5480] [ 133.309052][ T5480] stack backtrace: [ 133.314936][ T5480] CPU: 1 PID: 5480 Comm: syz-executor326 Not tainted 6.6.0-rc3-syzkaller-00165-g3b517966c561 #0 [ 133.325345][ T5480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 133.335431][ T5480] Call Trace: [ 133.338729][ T5480] [ 133.341663][ T5480] dump_stack_lvl+0x1e7/0x2d0 [ 133.346377][ T5480] ? nf_tcp_handle_invalid+0x650/0x650 [ 133.351871][ T5480] ? print_circular_bug+0x12b/0x1a0 [ 133.357086][ T5480] check_noncircular+0x375/0x4a0 [ 133.362043][ T5480] ? print_deadlock_bug+0x600/0x600 [ 133.367255][ T5480] __lock_acquire+0x39ff/0x7f70 [ 133.372141][ T5480] ? verify_lock_unused+0x140/0x140 [ 133.377351][ T5480] ? lockdep_unlock+0x169/0x300 [ 133.382225][ T5480] lock_acquire+0x1e3/0x520 [ 133.386747][ T5480] ? reiserfs_write_lock+0x7a/0xd0 [ 133.391871][ T5480] ? read_lock_is_recursive+0x20/0x20 [ 133.397246][ T5480] ? __might_sleep+0xc0/0xc0 [ 133.401861][ T5480] __mutex_lock+0x136/0xd60 [ 133.406380][ T5480] ? reiserfs_write_lock+0x7a/0xd0 [ 133.411503][ T5480] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 133.417487][ T5480] ? print_irqtrace_events+0x220/0x220 [ 133.422963][ T5480] ? reiserfs_write_lock+0x7a/0xd0 [ 133.428077][ T5480] ? mutex_lock_nested+0x20/0x20 [ 133.433027][ T5480] ? ktime_get_coarse_real_ts64+0x3a/0x120 [ 133.438836][ T5480] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 133.445077][ T5480] ? ktime_get_real_ts64+0x460/0x460 [ 133.450377][ T5480] reiserfs_write_lock+0x7a/0xd0 [ 133.455376][ T5480] reiserfs_dirty_inode+0xf2/0x240 [ 133.460500][ T5480] ? reiserfs_free_inode+0x30/0x30 [ 133.465615][ T5480] ? inode_update_timestamps+0x77f/0x880 [ 133.471257][ T5480] ? bmap+0xe0/0xe0 [ 133.475098][ T5480] ? rcu_read_lock_any_held+0xb7/0x160 [ 133.480558][ T5480] ? reiserfs_free_inode+0x30/0x30 [ 133.485675][ T5480] __mark_inode_dirty+0x305/0xd90 [ 133.490706][ T5480] ? generic_file_mmap+0xc6/0x120 [ 133.495752][ T5480] touch_atime+0x34d/0x590 [ 133.500179][ T5480] generic_file_mmap+0xc6/0x120 [ 133.505054][ T5480] mmap_region+0xfd0/0x2280 [ 133.509577][ T5480] ? verify_lock_unused+0x140/0x140 [ 133.514831][ T5480] ? file_mmap_ok+0x150/0x150 [ 133.519529][ T5480] ? cap_mmap_addr+0x162/0x2c0 [ 133.524310][ T5480] do_mmap+0x8d3/0xfa0 [ 133.528445][ T5480] ? mlock_future_ok+0x100/0x100 [ 133.533407][ T5480] ? ima_file_free+0x4b0/0x4b0 [ 133.538186][ T5480] vm_mmap_pgoff+0x1dc/0x410 [ 133.542806][ T5480] ? account_locked_vm+0x220/0x220 [ 133.547923][ T5480] ? __fget_files+0x435/0x4a0 [ 133.552601][ T5480] ? __fget_files+0x28/0x4a0 [ 133.557199][ T5480] ksys_mmap_pgoff+0x4ff/0x6d0 [ 133.561989][ T5480] do_syscall_64+0x41/0xc0 [ 133.566474][ T5480] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 133.572466][ T5480] RIP: 0033:0x7f7c0740f699 [ 133.576881][ T5480] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 133.596489][ T5480] RSP: 002b:00007ffcbc1dd968 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 133.604909][ T5480] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7c0740f699 [pid 5480] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5480] close(3) = 0 [pid 5480] close(4) = 0 [pid 5480] close(5) = 0 [pid 5480] close(6) = -1 EBADF (Bad file descriptor) [pid 5480] close(7) = -1 EBADF (Bad file descriptor) [pid 5480] close(8) = -1 EBADF (Bad file descriptor) [pid 5480] close(9) = -1 EBADF (Bad file descriptor) [pid 5480] close(10) = -1 EBADF (Bad file descriptor) [pid 5480] close(11) = -1 EBADF (Bad file descriptor) [pid 5480] close(12) = -1 EBADF (Bad file descriptor) [pid 5480] close(13) = -1 EBADF (Bad file descriptor) [pid 5480] close(14) = -1 EBADF (Bad file descriptor) [pid 5480] close(15) = -1 EBADF (Bad file descriptor) [pid 5480] close(16) = -1 EBADF (Bad file descriptor) [pid 5480] close(17) = -1 EBADF (Bad file descriptor) [pid 5480] close(18) = -1 EBADF (Bad file descriptor) [pid 5480] close(19) = -1 EBADF (Bad file descriptor) [pid 5480] close(20) = -1 EBADF (Bad file descriptor) [pid 5480] close(21) = -1 EBADF (Bad file descriptor) [pid 5480] close(22) = -1 EBADF (Bad file descriptor) [pid 5480] close(23) = -1 EBADF (Bad file descriptor) [pid 5480] close(24) = -1 EBADF (Bad file descriptor) [pid 5480] close(25) = -1 EBADF (Bad file descriptor) [pid 5480] close(26) = -1 EBADF (Bad file descriptor) [pid 5480] close(27) = -1 EBADF (Bad file descriptor) [pid 5480] close(28) = -1 EBADF (Bad file descriptor) [pid 5480] close(29) = -1 EBADF (Bad file descriptor) [pid 5480] exit_group(0) = ? [pid 5480] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=217, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./215", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./215", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./215/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./215/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./215/binderfs") = 0 [ 133.612900][ T5480] RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000 [ 133.620872][ T5480] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 [ 133.628844][ T5480] R10: 0000000000000011 R11: 0000000000000246 R12: 00007ffcbc1dd99c [ 133.636911][ T5480] R13: 00000000000000d7 R14: 431bde82d7b634db R15: 00007ffcbc1dd9d0 [ 133.645084][ T5480] [pid 5039] umount2("./215/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./215/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./215/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./215/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./215/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./215/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./215") = 0 [pid 5039] mkdir("./216", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5482 attached , child_tidptr=0x555555e46650) = 218 [pid 5482] set_robust_list(0x555555e46660, 24) = 0 [pid 5482] chdir("./216") = 0 [pid 5482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5482] setpgid(0, 0) = 0 [pid 5482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5482] write(3, "1000", 4) = 4 [pid 5482] close(3) = 0 [pid 5482] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5482] memfd_create("syzkaller", 0) = 3 [pid 5482] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5482] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5482] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5482] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5482] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5482] close(3) = 0 [pid 5482] mkdir("./file0", 0777) = 0 [ 133.756499][ T5482] loop0: detected capacity change from 0 to 8192 [ 133.766345][ T5482] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.779426][ T5482] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 133.788691][ T5482] REISERFS (device loop0): using ordered data mode [ 133.795253][ T5482] reiserfs: using flush barriers [pid 5482] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5482] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5482] chdir("./file0") = 0 [pid 5482] ioctl(4, LOOP_CLR_FD) = 0 [pid 5482] close(4) = 0 [pid 5482] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5482] mount(NULL, ".", 0x200000c0, 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 5482] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5482] chdir(".") = 0 [pid 5482] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5482] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5482] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5482] close(3) = 0 [pid 5482] close(4) = 0 [pid 5482] close(5) = 0 [pid 5482] close(6) = -1 EBADF (Bad file descriptor) [pid 5482] close(7) = -1 EBADF (Bad file descriptor) [pid 5482] close(8) = -1 EBADF (Bad file descriptor) [pid 5482] close(9) = -1 EBADF (Bad file descriptor) [pid 5482] close(10) = -1 EBADF (Bad file descriptor) [pid 5482] close(11) = -1 EBADF (Bad file descriptor) [pid 5482] close(12) = -1 EBADF (Bad file descriptor) [pid 5482] close(13) = -1 EBADF (Bad file descriptor) [pid 5482] close(14) = -1 EBADF (Bad file descriptor) [pid 5482] close(15) = -1 EBADF (Bad file descriptor) [pid 5482] close(16) = -1 EBADF (Bad file descriptor) [pid 5482] close(17) = -1 EBADF (Bad file descriptor) [pid 5482] close(18) = -1 EBADF (Bad file descriptor) [pid 5482] close(19) = -1 EBADF (Bad file descriptor) [pid 5482] close(20) = -1 EBADF (Bad file descriptor) [pid 5482] close(21) = -1 EBADF (Bad file descriptor) [pid 5482] close(22) = -1 EBADF (Bad file descriptor) [pid 5482] close(23) = -1 EBADF (Bad file descriptor) [pid 5482] close(24) = -1 EBADF (Bad file descriptor) [pid 5482] close(25) = -1 EBADF (Bad file descriptor) [pid 5482] close(26) = -1 EBADF (Bad file descriptor) [pid 5482] close(27) = -1 EBADF (Bad file descriptor) [pid 5482] close(28) = -1 EBADF (Bad file descriptor) [pid 5482] close(29) = -1 EBADF (Bad file descriptor) [pid 5482] exit_group(0) = ? [pid 5482] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=218, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] umount2("./216", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./216/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./216/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./216/binderfs") = 0 [ 133.801357][ T5482] 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 [ 133.817899][ T5482] REISERFS (device loop0): checking transaction log (loop0) [ 133.825943][ T5482] REISERFS (device loop0): Using r5 hash to sort names [ 133.836227][ T5482] reiserfs: enabling write barrier flush mode [ 133.845197][ T5482] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./216/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./216/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./216/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./216") = 0 [pid 5039] mkdir("./217", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5484 attached , child_tidptr=0x555555e46650) = 219 [pid 5484] set_robust_list(0x555555e46660, 24) = 0 [pid 5484] chdir("./217") = 0 [pid 5484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5484] setpgid(0, 0) = 0 [pid 5484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5484] write(3, "1000", 4) = 4 [pid 5484] close(3) = 0 [pid 5484] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5484] memfd_create("syzkaller", 0) = 3 [pid 5484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5484] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5484] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5484] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5484] close(3) = 0 [pid 5484] mkdir("./file0", 0777) = 0 [ 133.966152][ T5484] loop0: detected capacity change from 0 to 8192 [ 133.977367][ T5484] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.990487][ T5484] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 133.999817][ T5484] REISERFS (device loop0): using ordered data mode [ 134.006406][ T5484] reiserfs: using flush barriers [pid 5484] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5484] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5484] chdir("./file0") = 0 [pid 5484] ioctl(4, LOOP_CLR_FD) = 0 [pid 5484] close(4) = 0 [pid 5484] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5484] mount(NULL, ".", 0x200000c0, 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 5484] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5484] chdir(".") = 0 [pid 5484] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5484] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5484] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5484] close(3) = 0 [pid 5484] close(4) = 0 [pid 5484] close(5) = 0 [pid 5484] close(6) = -1 EBADF (Bad file descriptor) [pid 5484] close(7) = -1 EBADF (Bad file descriptor) [pid 5484] close(8) = -1 EBADF (Bad file descriptor) [pid 5484] close(9) = -1 EBADF (Bad file descriptor) [pid 5484] close(10) = -1 EBADF (Bad file descriptor) [pid 5484] close(11) = -1 EBADF (Bad file descriptor) [pid 5484] close(12) = -1 EBADF (Bad file descriptor) [pid 5484] close(13) = -1 EBADF (Bad file descriptor) [pid 5484] close(14) = -1 EBADF (Bad file descriptor) [pid 5484] close(15) = -1 EBADF (Bad file descriptor) [pid 5484] close(16) = -1 EBADF (Bad file descriptor) [pid 5484] close(17) = -1 EBADF (Bad file descriptor) [pid 5484] close(18) = -1 EBADF (Bad file descriptor) [pid 5484] close(19) = -1 EBADF (Bad file descriptor) [pid 5484] close(20) = -1 EBADF (Bad file descriptor) [pid 5484] close(21) = -1 EBADF (Bad file descriptor) [pid 5484] close(22) = -1 EBADF (Bad file descriptor) [pid 5484] close(23) = -1 EBADF (Bad file descriptor) [pid 5484] close(24) = -1 EBADF (Bad file descriptor) [pid 5484] close(25) = -1 EBADF (Bad file descriptor) [pid 5484] close(26) = -1 EBADF (Bad file descriptor) [pid 5484] close(27) = -1 EBADF (Bad file descriptor) [pid 5484] close(28) = -1 EBADF (Bad file descriptor) [pid 5484] close(29) = -1 EBADF (Bad file descriptor) [pid 5484] exit_group(0) = ? [pid 5484] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=219, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./217/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./217/binderfs") = 0 [ 134.012456][ T5484] 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 [ 134.029018][ T5484] REISERFS (device loop0): checking transaction log (loop0) [ 134.036899][ T5484] REISERFS (device loop0): Using r5 hash to sort names [ 134.046441][ T5484] reiserfs: enabling write barrier flush mode [ 134.055081][ T5484] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./217/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./217/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./217/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./217") = 0 [pid 5039] mkdir("./218", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5486 attached , child_tidptr=0x555555e46650) = 220 [pid 5486] set_robust_list(0x555555e46660, 24) = 0 [pid 5486] chdir("./218") = 0 [pid 5486] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5486] setpgid(0, 0) = 0 [pid 5486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5486] write(3, "1000", 4) = 4 [pid 5486] close(3) = 0 [pid 5486] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5486] memfd_create("syzkaller", 0) = 3 [pid 5486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5486] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5486] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5486] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5486] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5486] close(3) = 0 [pid 5486] mkdir("./file0", 0777) = 0 [ 134.183349][ T5486] loop0: detected capacity change from 0 to 8192 [ 134.192769][ T5486] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.205905][ T5486] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 134.215158][ T5486] REISERFS (device loop0): using ordered data mode [ 134.221676][ T5486] reiserfs: using flush barriers [pid 5486] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5486] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5486] chdir("./file0") = 0 [pid 5486] ioctl(4, LOOP_CLR_FD) = 0 [pid 5486] close(4) = 0 [pid 5486] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5486] mount(NULL, ".", 0x200000c0, 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 5486] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5486] chdir(".") = 0 [pid 5486] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5486] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5486] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5486] close(3) = 0 [pid 5486] close(4) = 0 [pid 5486] close(5) = 0 [pid 5486] close(6) = -1 EBADF (Bad file descriptor) [pid 5486] close(7) = -1 EBADF (Bad file descriptor) [pid 5486] close(8) = -1 EBADF (Bad file descriptor) [pid 5486] close(9) = -1 EBADF (Bad file descriptor) [pid 5486] close(10) = -1 EBADF (Bad file descriptor) [pid 5486] close(11) = -1 EBADF (Bad file descriptor) [pid 5486] close(12) = -1 EBADF (Bad file descriptor) [pid 5486] close(13) = -1 EBADF (Bad file descriptor) [pid 5486] close(14) = -1 EBADF (Bad file descriptor) [pid 5486] close(15) = -1 EBADF (Bad file descriptor) [pid 5486] close(16) = -1 EBADF (Bad file descriptor) [pid 5486] close(17) = -1 EBADF (Bad file descriptor) [pid 5486] close(18) = -1 EBADF (Bad file descriptor) [pid 5486] close(19) = -1 EBADF (Bad file descriptor) [pid 5486] close(20) = -1 EBADF (Bad file descriptor) [pid 5486] close(21) = -1 EBADF (Bad file descriptor) [pid 5486] close(22) = -1 EBADF (Bad file descriptor) [pid 5486] close(23) = -1 EBADF (Bad file descriptor) [pid 5486] close(24) = -1 EBADF (Bad file descriptor) [pid 5486] close(25) = -1 EBADF (Bad file descriptor) [pid 5486] close(26) = -1 EBADF (Bad file descriptor) [pid 5486] close(27) = -1 EBADF (Bad file descriptor) [pid 5486] close(28) = -1 EBADF (Bad file descriptor) [pid 5486] close(29) = -1 EBADF (Bad file descriptor) [pid 5486] exit_group(0) = ? [pid 5486] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=220, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./218/binderfs") = 0 [ 134.227975][ T5486] 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 [ 134.244367][ T5486] REISERFS (device loop0): checking transaction log (loop0) [ 134.252569][ T5486] REISERFS (device loop0): Using r5 hash to sort names [ 134.265654][ T5486] reiserfs: enabling write barrier flush mode [ 134.273697][ T5486] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./218/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./218/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./218/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./218") = 0 [pid 5039] mkdir("./219", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 221 ./strace-static-x86_64: Process 5488 attached [pid 5488] set_robust_list(0x555555e46660, 24) = 0 [pid 5488] chdir("./219") = 0 [pid 5488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5488] setpgid(0, 0) = 0 [pid 5488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5488] write(3, "1000", 4) = 4 [pid 5488] close(3) = 0 [pid 5488] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5488] memfd_create("syzkaller", 0) = 3 [pid 5488] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5488] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5488] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5488] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5488] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5488] close(3) = 0 [pid 5488] mkdir("./file0", 0777) = 0 [ 134.385375][ T5488] loop0: detected capacity change from 0 to 8192 [ 134.394510][ T5488] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.407616][ T5488] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 134.416852][ T5488] REISERFS (device loop0): using ordered data mode [ 134.423365][ T5488] reiserfs: using flush barriers [pid 5488] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5488] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5488] chdir("./file0") = 0 [pid 5488] ioctl(4, LOOP_CLR_FD) = 0 [pid 5488] close(4) = 0 [pid 5488] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5488] mount(NULL, ".", 0x200000c0, 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 5488] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5488] chdir(".") = 0 [pid 5488] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5488] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5488] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5488] close(3) = 0 [pid 5488] close(4) = 0 [pid 5488] close(5) = 0 [pid 5488] close(6) = -1 EBADF (Bad file descriptor) [pid 5488] close(7) = -1 EBADF (Bad file descriptor) [pid 5488] close(8) = -1 EBADF (Bad file descriptor) [pid 5488] close(9) = -1 EBADF (Bad file descriptor) [pid 5488] close(10) = -1 EBADF (Bad file descriptor) [pid 5488] close(11) = -1 EBADF (Bad file descriptor) [pid 5488] close(12) = -1 EBADF (Bad file descriptor) [pid 5488] close(13) = -1 EBADF (Bad file descriptor) [pid 5488] close(14) = -1 EBADF (Bad file descriptor) [pid 5488] close(15) = -1 EBADF (Bad file descriptor) [pid 5488] close(16) = -1 EBADF (Bad file descriptor) [pid 5488] close(17) = -1 EBADF (Bad file descriptor) [pid 5488] close(18) = -1 EBADF (Bad file descriptor) [pid 5488] close(19) = -1 EBADF (Bad file descriptor) [pid 5488] close(20) = -1 EBADF (Bad file descriptor) [pid 5488] close(21) = -1 EBADF (Bad file descriptor) [pid 5488] close(22) = -1 EBADF (Bad file descriptor) [pid 5488] close(23) = -1 EBADF (Bad file descriptor) [pid 5488] close(24) = -1 EBADF (Bad file descriptor) [pid 5488] close(25) = -1 EBADF (Bad file descriptor) [pid 5488] close(26) = -1 EBADF (Bad file descriptor) [pid 5488] close(27) = -1 EBADF (Bad file descriptor) [pid 5488] close(28) = -1 EBADF (Bad file descriptor) [pid 5488] close(29) = -1 EBADF (Bad file descriptor) [pid 5488] exit_group(0) = ? [pid 5488] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=221, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./219/binderfs") = 0 [ 134.429668][ T5488] 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 [ 134.446513][ T5488] REISERFS (device loop0): checking transaction log (loop0) [ 134.454685][ T5488] REISERFS (device loop0): Using r5 hash to sort names [ 134.463743][ T5488] reiserfs: enabling write barrier flush mode [ 134.472242][ T5488] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./219/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./219/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./219/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./219") = 0 [pid 5039] mkdir("./220", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 222 ./strace-static-x86_64: Process 5490 attached [pid 5490] set_robust_list(0x555555e46660, 24) = 0 [pid 5490] chdir("./220") = 0 [pid 5490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5490] setpgid(0, 0) = 0 [pid 5490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5490] write(3, "1000", 4) = 4 [pid 5490] close(3) = 0 [pid 5490] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5490] memfd_create("syzkaller", 0) = 3 [pid 5490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5490] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5490] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5490] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5490] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5490] close(3) = 0 [pid 5490] mkdir("./file0", 0777) = 0 [ 134.590157][ T5490] loop0: detected capacity change from 0 to 8192 [ 134.599578][ T5490] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.612587][ T5490] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 134.621824][ T5490] REISERFS (device loop0): using ordered data mode [ 134.628404][ T5490] reiserfs: using flush barriers [pid 5490] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5490] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5490] chdir("./file0") = 0 [pid 5490] ioctl(4, LOOP_CLR_FD) = 0 [pid 5490] close(4) = 0 [pid 5490] mkdir(".", 0777) = -1 EEXIST (File exists) [ 134.634664][ T5490] 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 [ 134.651301][ T5490] REISERFS (device loop0): checking transaction log (loop0) [ 134.659479][ T5490] REISERFS (device loop0): Using r5 hash to sort names [ 134.675572][ T5490] reiserfs: enabling write barrier flush mode [pid 5490] mount(NULL, ".", 0x200000c0, 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 5490] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5490] chdir(".") = 0 [pid 5490] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5490] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5490] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5490] close(3) = 0 [pid 5490] close(4) = 0 [pid 5490] close(5) = 0 [pid 5490] close(6) = -1 EBADF (Bad file descriptor) [pid 5490] close(7) = -1 EBADF (Bad file descriptor) [pid 5490] close(8) = -1 EBADF (Bad file descriptor) [pid 5490] close(9) = -1 EBADF (Bad file descriptor) [pid 5490] close(10) = -1 EBADF (Bad file descriptor) [pid 5490] close(11) = -1 EBADF (Bad file descriptor) [pid 5490] close(12) = -1 EBADF (Bad file descriptor) [pid 5490] close(13) = -1 EBADF (Bad file descriptor) [pid 5490] close(14) = -1 EBADF (Bad file descriptor) [pid 5490] close(15) = -1 EBADF (Bad file descriptor) [pid 5490] close(16) = -1 EBADF (Bad file descriptor) [pid 5490] close(17) = -1 EBADF (Bad file descriptor) [pid 5490] close(18) = -1 EBADF (Bad file descriptor) [pid 5490] close(19) = -1 EBADF (Bad file descriptor) [pid 5490] close(20) = -1 EBADF (Bad file descriptor) [pid 5490] close(21) = -1 EBADF (Bad file descriptor) [pid 5490] close(22) = -1 EBADF (Bad file descriptor) [pid 5490] close(23) = -1 EBADF (Bad file descriptor) [pid 5490] close(24) = -1 EBADF (Bad file descriptor) [pid 5490] close(25) = -1 EBADF (Bad file descriptor) [pid 5490] close(26) = -1 EBADF (Bad file descriptor) [pid 5490] close(27) = -1 EBADF (Bad file descriptor) [pid 5490] close(28) = -1 EBADF (Bad file descriptor) [pid 5490] close(29) = -1 EBADF (Bad file descriptor) [pid 5490] exit_group(0) = ? [pid 5490] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=222, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./220/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./220/binderfs") = 0 [ 134.683710][ T5490] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./220/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./220/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./220/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./220") = 0 [pid 5039] mkdir("./221", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 223 ./strace-static-x86_64: Process 5492 attached [pid 5492] set_robust_list(0x555555e46660, 24) = 0 [pid 5492] chdir("./221") = 0 [pid 5492] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5492] setpgid(0, 0) = 0 [pid 5492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5492] write(3, "1000", 4) = 4 [pid 5492] close(3) = 0 [pid 5492] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5492] memfd_create("syzkaller", 0) = 3 [pid 5492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5492] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5492] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5492] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5492] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5492] close(3) = 0 [pid 5492] mkdir("./file0", 0777) = 0 [ 134.806446][ T5492] loop0: detected capacity change from 0 to 8192 [ 134.816286][ T5492] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.829348][ T5492] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 134.838731][ T5492] REISERFS (device loop0): using ordered data mode [ 134.845353][ T5492] reiserfs: using flush barriers [pid 5492] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5492] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5492] chdir("./file0") = 0 [pid 5492] ioctl(4, LOOP_CLR_FD) = 0 [pid 5492] close(4) = 0 [pid 5492] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5492] mount(NULL, ".", 0x200000c0, 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 5492] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5492] chdir(".") = 0 [pid 5492] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5492] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5492] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5492] close(3) = 0 [pid 5492] close(4) = 0 [pid 5492] close(5) = 0 [pid 5492] close(6) = -1 EBADF (Bad file descriptor) [pid 5492] close(7) = -1 EBADF (Bad file descriptor) [pid 5492] close(8) = -1 EBADF (Bad file descriptor) [pid 5492] close(9) = -1 EBADF (Bad file descriptor) [pid 5492] close(10) = -1 EBADF (Bad file descriptor) [pid 5492] close(11) = -1 EBADF (Bad file descriptor) [pid 5492] close(12) = -1 EBADF (Bad file descriptor) [pid 5492] close(13) = -1 EBADF (Bad file descriptor) [pid 5492] close(14) = -1 EBADF (Bad file descriptor) [pid 5492] close(15) = -1 EBADF (Bad file descriptor) [pid 5492] close(16) = -1 EBADF (Bad file descriptor) [pid 5492] close(17) = -1 EBADF (Bad file descriptor) [pid 5492] close(18) = -1 EBADF (Bad file descriptor) [pid 5492] close(19) = -1 EBADF (Bad file descriptor) [pid 5492] close(20) = -1 EBADF (Bad file descriptor) [pid 5492] close(21) = -1 EBADF (Bad file descriptor) [pid 5492] close(22) = -1 EBADF (Bad file descriptor) [pid 5492] close(23) = -1 EBADF (Bad file descriptor) [pid 5492] close(24) = -1 EBADF (Bad file descriptor) [pid 5492] close(25) = -1 EBADF (Bad file descriptor) [pid 5492] close(26) = -1 EBADF (Bad file descriptor) [pid 5492] close(27) = -1 EBADF (Bad file descriptor) [pid 5492] close(28) = -1 EBADF (Bad file descriptor) [pid 5492] close(29) = -1 EBADF (Bad file descriptor) [pid 5492] exit_group(0) = ? [pid 5492] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=223, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./221/binderfs") = 0 [ 134.851479][ T5492] 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 [ 134.868012][ T5492] REISERFS (device loop0): checking transaction log (loop0) [ 134.876038][ T5492] REISERFS (device loop0): Using r5 hash to sort names [ 134.886117][ T5492] reiserfs: enabling write barrier flush mode [ 134.894396][ T5492] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./221/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./221/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./221/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./221") = 0 [pid 5039] mkdir("./222", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5494 attached [pid 5494] set_robust_list(0x555555e46660, 24) = 0 [pid 5494] chdir("./222") = 0 [pid 5494] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5494] setpgid(0, 0) = 0 [pid 5494] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 224 [pid 5494] <... openat resumed>) = 3 [pid 5494] write(3, "1000", 4) = 4 [pid 5494] close(3) = 0 [pid 5494] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5494] memfd_create("syzkaller", 0) = 3 [pid 5494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5494] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5494] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5494] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5494] close(3) = 0 [pid 5494] mkdir("./file0", 0777) = 0 [ 135.013112][ T5494] loop0: detected capacity change from 0 to 8192 [ 135.022599][ T5494] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.035581][ T5494] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 135.044755][ T5494] REISERFS (device loop0): using ordered data mode [ 135.051297][ T5494] reiserfs: using flush barriers [pid 5494] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5494] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5494] chdir("./file0") = 0 [pid 5494] ioctl(4, LOOP_CLR_FD) = 0 [pid 5494] close(4) = 0 [pid 5494] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5494] mount(NULL, ".", 0x200000c0, 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 5494] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5494] chdir(".") = 0 [pid 5494] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5494] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5494] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5494] close(3) = 0 [pid 5494] close(4) = 0 [pid 5494] close(5) = 0 [pid 5494] close(6) = -1 EBADF (Bad file descriptor) [pid 5494] close(7) = -1 EBADF (Bad file descriptor) [pid 5494] close(8) = -1 EBADF (Bad file descriptor) [pid 5494] close(9) = -1 EBADF (Bad file descriptor) [pid 5494] close(10) = -1 EBADF (Bad file descriptor) [pid 5494] close(11) = -1 EBADF (Bad file descriptor) [pid 5494] close(12) = -1 EBADF (Bad file descriptor) [pid 5494] close(13) = -1 EBADF (Bad file descriptor) [pid 5494] close(14) = -1 EBADF (Bad file descriptor) [pid 5494] close(15) = -1 EBADF (Bad file descriptor) [pid 5494] close(16) = -1 EBADF (Bad file descriptor) [pid 5494] close(17) = -1 EBADF (Bad file descriptor) [pid 5494] close(18) = -1 EBADF (Bad file descriptor) [pid 5494] close(19) = -1 EBADF (Bad file descriptor) [pid 5494] close(20) = -1 EBADF (Bad file descriptor) [pid 5494] close(21) = -1 EBADF (Bad file descriptor) [pid 5494] close(22) = -1 EBADF (Bad file descriptor) [pid 5494] close(23) = -1 EBADF (Bad file descriptor) [pid 5494] close(24) = -1 EBADF (Bad file descriptor) [pid 5494] close(25) = -1 EBADF (Bad file descriptor) [pid 5494] close(26) = -1 EBADF (Bad file descriptor) [pid 5494] close(27) = -1 EBADF (Bad file descriptor) [pid 5494] close(28) = -1 EBADF (Bad file descriptor) [pid 5494] close(29) = -1 EBADF (Bad file descriptor) [pid 5494] exit_group(0) = ? [pid 5494] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=224, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./222/binderfs") = 0 [ 135.057482][ T5494] 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 [ 135.074017][ T5494] REISERFS (device loop0): checking transaction log (loop0) [ 135.082225][ T5494] REISERFS (device loop0): Using r5 hash to sort names [ 135.092432][ T5494] reiserfs: enabling write barrier flush mode [ 135.101017][ T5494] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./222/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./222/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./222/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./222") = 0 [pid 5039] mkdir("./223", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 225 ./strace-static-x86_64: Process 5496 attached [pid 5496] set_robust_list(0x555555e46660, 24) = 0 [pid 5496] chdir("./223") = 0 [pid 5496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5496] setpgid(0, 0) = 0 [pid 5496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5496] write(3, "1000", 4) = 4 [pid 5496] close(3) = 0 [pid 5496] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5496] memfd_create("syzkaller", 0) = 3 [pid 5496] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5496] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5496] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5496] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5496] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5496] close(3) = 0 [pid 5496] mkdir("./file0", 0777) = 0 [ 135.232580][ T5496] loop0: detected capacity change from 0 to 8192 [ 135.242381][ T5496] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.255438][ T5496] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 135.264619][ T5496] REISERFS (device loop0): using ordered data mode [ 135.271197][ T5496] reiserfs: using flush barriers [pid 5496] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5496] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5496] chdir("./file0") = 0 [pid 5496] ioctl(4, LOOP_CLR_FD) = 0 [pid 5496] close(4) = 0 [pid 5496] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5496] mount(NULL, ".", 0x200000c0, 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 5496] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5496] chdir(".") = 0 [pid 5496] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5496] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5496] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5496] close(3) = 0 [pid 5496] close(4) = 0 [pid 5496] close(5) = 0 [pid 5496] close(6) = -1 EBADF (Bad file descriptor) [pid 5496] close(7) = -1 EBADF (Bad file descriptor) [pid 5496] close(8) = -1 EBADF (Bad file descriptor) [pid 5496] close(9) = -1 EBADF (Bad file descriptor) [pid 5496] close(10) = -1 EBADF (Bad file descriptor) [pid 5496] close(11) = -1 EBADF (Bad file descriptor) [pid 5496] close(12) = -1 EBADF (Bad file descriptor) [pid 5496] close(13) = -1 EBADF (Bad file descriptor) [pid 5496] close(14) = -1 EBADF (Bad file descriptor) [pid 5496] close(15) = -1 EBADF (Bad file descriptor) [pid 5496] close(16) = -1 EBADF (Bad file descriptor) [pid 5496] close(17) = -1 EBADF (Bad file descriptor) [pid 5496] close(18) = -1 EBADF (Bad file descriptor) [pid 5496] close(19) = -1 EBADF (Bad file descriptor) [pid 5496] close(20) = -1 EBADF (Bad file descriptor) [pid 5496] close(21) = -1 EBADF (Bad file descriptor) [pid 5496] close(22) = -1 EBADF (Bad file descriptor) [pid 5496] close(23) = -1 EBADF (Bad file descriptor) [pid 5496] close(24) = -1 EBADF (Bad file descriptor) [pid 5496] close(25) = -1 EBADF (Bad file descriptor) [pid 5496] close(26) = -1 EBADF (Bad file descriptor) [pid 5496] close(27) = -1 EBADF (Bad file descriptor) [pid 5496] close(28) = -1 EBADF (Bad file descriptor) [pid 5496] close(29) = -1 EBADF (Bad file descriptor) [pid 5496] exit_group(0) = ? [pid 5496] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=225, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./223/binderfs") = 0 [ 135.277395][ T5496] 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 [ 135.293959][ T5496] REISERFS (device loop0): checking transaction log (loop0) [ 135.302024][ T5496] REISERFS (device loop0): Using r5 hash to sort names [ 135.312173][ T5496] reiserfs: enabling write barrier flush mode [ 135.320938][ T5496] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./223/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./223/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./223/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./223") = 0 [pid 5039] mkdir("./224", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5498 attached , child_tidptr=0x555555e46650) = 226 [pid 5498] set_robust_list(0x555555e46660, 24) = 0 [pid 5498] chdir("./224") = 0 [pid 5498] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5498] setpgid(0, 0) = 0 [pid 5498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5498] write(3, "1000", 4) = 4 [pid 5498] close(3) = 0 [pid 5498] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5498] memfd_create("syzkaller", 0) = 3 [pid 5498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5498] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5498] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5498] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5498] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5498] close(3) = 0 [pid 5498] mkdir("./file0", 0777) = 0 [ 135.435838][ T5498] loop0: detected capacity change from 0 to 8192 [ 135.445583][ T5498] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.458688][ T5498] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 135.468028][ T5498] REISERFS (device loop0): using ordered data mode [ 135.474630][ T5498] reiserfs: using flush barriers [pid 5498] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5498] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5498] chdir("./file0") = 0 [pid 5498] ioctl(4, LOOP_CLR_FD) = 0 [pid 5498] close(4) = 0 [pid 5498] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5498] mount(NULL, ".", 0x200000c0, 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 5498] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5498] chdir(".") = 0 [pid 5498] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5498] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5498] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5498] close(3) = 0 [pid 5498] close(4) = 0 [pid 5498] close(5) = 0 [pid 5498] close(6) = -1 EBADF (Bad file descriptor) [pid 5498] close(7) = -1 EBADF (Bad file descriptor) [pid 5498] close(8) = -1 EBADF (Bad file descriptor) [pid 5498] close(9) = -1 EBADF (Bad file descriptor) [pid 5498] close(10) = -1 EBADF (Bad file descriptor) [pid 5498] close(11) = -1 EBADF (Bad file descriptor) [pid 5498] close(12) = -1 EBADF (Bad file descriptor) [pid 5498] close(13) = -1 EBADF (Bad file descriptor) [pid 5498] close(14) = -1 EBADF (Bad file descriptor) [pid 5498] close(15) = -1 EBADF (Bad file descriptor) [pid 5498] close(16) = -1 EBADF (Bad file descriptor) [pid 5498] close(17) = -1 EBADF (Bad file descriptor) [pid 5498] close(18) = -1 EBADF (Bad file descriptor) [pid 5498] close(19) = -1 EBADF (Bad file descriptor) [pid 5498] close(20) = -1 EBADF (Bad file descriptor) [pid 5498] close(21) = -1 EBADF (Bad file descriptor) [pid 5498] close(22) = -1 EBADF (Bad file descriptor) [pid 5498] close(23) = -1 EBADF (Bad file descriptor) [pid 5498] close(24) = -1 EBADF (Bad file descriptor) [pid 5498] close(25) = -1 EBADF (Bad file descriptor) [pid 5498] close(26) = -1 EBADF (Bad file descriptor) [pid 5498] close(27) = -1 EBADF (Bad file descriptor) [pid 5498] close(28) = -1 EBADF (Bad file descriptor) [pid 5498] close(29) = -1 EBADF (Bad file descriptor) [pid 5498] exit_group(0) = ? [pid 5498] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=226, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./224/binderfs") = 0 [ 135.480836][ T5498] 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 [ 135.497284][ T5498] REISERFS (device loop0): checking transaction log (loop0) [ 135.505517][ T5498] REISERFS (device loop0): Using r5 hash to sort names [ 135.517514][ T5498] reiserfs: enabling write barrier flush mode [ 135.526283][ T5498] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./224/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./224/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./224/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./224") = 0 [pid 5039] mkdir("./225", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5500 attached , child_tidptr=0x555555e46650) = 227 [pid 5500] set_robust_list(0x555555e46660, 24) = 0 [pid 5500] chdir("./225") = 0 [pid 5500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5500] setpgid(0, 0) = 0 [pid 5500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5500] write(3, "1000", 4) = 4 [pid 5500] close(3) = 0 [pid 5500] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5500] memfd_create("syzkaller", 0) = 3 [pid 5500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5500] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5500] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5500] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5500] close(3) = 0 [pid 5500] mkdir("./file0", 0777) = 0 [ 135.670755][ T5500] loop0: detected capacity change from 0 to 8192 [ 135.680000][ T5500] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.693005][ T5500] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 135.702397][ T5500] REISERFS (device loop0): using ordered data mode [ 135.708964][ T5500] reiserfs: using flush barriers [pid 5500] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5500] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5500] chdir("./file0") = 0 [pid 5500] ioctl(4, LOOP_CLR_FD) = 0 [pid 5500] close(4) = 0 [pid 5500] mkdir(".", 0777) = -1 EEXIST (File exists) [ 135.715194][ T5500] 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 [ 135.731622][ T5500] REISERFS (device loop0): checking transaction log (loop0) [ 135.739754][ T5500] REISERFS (device loop0): Using r5 hash to sort names [ 135.755967][ T5500] reiserfs: enabling write barrier flush mode [pid 5500] mount(NULL, ".", 0x200000c0, 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 5500] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5500] chdir(".") = 0 [pid 5500] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5500] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5500] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5500] close(3) = 0 [pid 5500] close(4) = 0 [pid 5500] close(5) = 0 [pid 5500] close(6) = -1 EBADF (Bad file descriptor) [pid 5500] close(7) = -1 EBADF (Bad file descriptor) [pid 5500] close(8) = -1 EBADF (Bad file descriptor) [pid 5500] close(9) = -1 EBADF (Bad file descriptor) [pid 5500] close(10) = -1 EBADF (Bad file descriptor) [pid 5500] close(11) = -1 EBADF (Bad file descriptor) [pid 5500] close(12) = -1 EBADF (Bad file descriptor) [pid 5500] close(13) = -1 EBADF (Bad file descriptor) [pid 5500] close(14) = -1 EBADF (Bad file descriptor) [pid 5500] close(15) = -1 EBADF (Bad file descriptor) [pid 5500] close(16) = -1 EBADF (Bad file descriptor) [pid 5500] close(17) = -1 EBADF (Bad file descriptor) [pid 5500] close(18) = -1 EBADF (Bad file descriptor) [pid 5500] close(19) = -1 EBADF (Bad file descriptor) [pid 5500] close(20) = -1 EBADF (Bad file descriptor) [pid 5500] close(21) = -1 EBADF (Bad file descriptor) [pid 5500] close(22) = -1 EBADF (Bad file descriptor) [pid 5500] close(23) = -1 EBADF (Bad file descriptor) [pid 5500] close(24) = -1 EBADF (Bad file descriptor) [pid 5500] close(25) = -1 EBADF (Bad file descriptor) [pid 5500] close(26) = -1 EBADF (Bad file descriptor) [pid 5500] close(27) = -1 EBADF (Bad file descriptor) [pid 5500] close(28) = -1 EBADF (Bad file descriptor) [pid 5500] close(29) = -1 EBADF (Bad file descriptor) [pid 5500] exit_group(0) = ? [pid 5500] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=227, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./225/binderfs") = 0 [ 135.764119][ T5500] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./225/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./225/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./225/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./225") = 0 [pid 5039] mkdir("./226", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 228 ./strace-static-x86_64: Process 5502 attached [pid 5502] set_robust_list(0x555555e46660, 24) = 0 [pid 5502] chdir("./226") = 0 [pid 5502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5502] setpgid(0, 0) = 0 [pid 5502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5502] write(3, "1000", 4) = 4 [pid 5502] close(3) = 0 [pid 5502] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5502] memfd_create("syzkaller", 0) = 3 [pid 5502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5502] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5502] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5502] close(3) = 0 [pid 5502] mkdir("./file0", 0777) = 0 [ 135.887117][ T5502] loop0: detected capacity change from 0 to 8192 [ 135.896686][ T5502] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.909672][ T5502] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 135.918963][ T5502] REISERFS (device loop0): using ordered data mode [ 135.925624][ T5502] reiserfs: using flush barriers [pid 5502] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5502] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5502] chdir("./file0") = 0 [pid 5502] ioctl(4, LOOP_CLR_FD) = 0 [pid 5502] close(4) = 0 [pid 5502] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5502] mount(NULL, ".", 0x200000c0, 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 5502] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5502] chdir(".") = 0 [pid 5502] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5502] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5502] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5502] close(3) = 0 [pid 5502] close(4) = 0 [pid 5502] close(5) = 0 [pid 5502] close(6) = -1 EBADF (Bad file descriptor) [pid 5502] close(7) = -1 EBADF (Bad file descriptor) [pid 5502] close(8) = -1 EBADF (Bad file descriptor) [pid 5502] close(9) = -1 EBADF (Bad file descriptor) [pid 5502] close(10) = -1 EBADF (Bad file descriptor) [pid 5502] close(11) = -1 EBADF (Bad file descriptor) [pid 5502] close(12) = -1 EBADF (Bad file descriptor) [pid 5502] close(13) = -1 EBADF (Bad file descriptor) [pid 5502] close(14) = -1 EBADF (Bad file descriptor) [pid 5502] close(15) = -1 EBADF (Bad file descriptor) [pid 5502] close(16) = -1 EBADF (Bad file descriptor) [pid 5502] close(17) = -1 EBADF (Bad file descriptor) [pid 5502] close(18) = -1 EBADF (Bad file descriptor) [pid 5502] close(19) = -1 EBADF (Bad file descriptor) [pid 5502] close(20) = -1 EBADF (Bad file descriptor) [pid 5502] close(21) = -1 EBADF (Bad file descriptor) [pid 5502] close(22) = -1 EBADF (Bad file descriptor) [pid 5502] close(23) = -1 EBADF (Bad file descriptor) [pid 5502] close(24) = -1 EBADF (Bad file descriptor) [pid 5502] close(25) = -1 EBADF (Bad file descriptor) [pid 5502] close(26) = -1 EBADF (Bad file descriptor) [pid 5502] close(27) = -1 EBADF (Bad file descriptor) [pid 5502] close(28) = -1 EBADF (Bad file descriptor) [pid 5502] close(29) = -1 EBADF (Bad file descriptor) [pid 5502] exit_group(0) = ? [pid 5502] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=228, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./226/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./226/binderfs") = 0 [ 135.931810][ T5502] 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 [ 135.948361][ T5502] REISERFS (device loop0): checking transaction log (loop0) [ 135.956279][ T5502] REISERFS (device loop0): Using r5 hash to sort names [ 135.966743][ T5502] reiserfs: enabling write barrier flush mode [ 135.974926][ T5502] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./226/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./226/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./226/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./226") = 0 [pid 5039] mkdir("./227", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5504 attached [pid 5504] set_robust_list(0x555555e46660, 24) = 0 [pid 5504] chdir("./227") = 0 [pid 5504] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5504] setpgid(0, 0) = 0 [pid 5504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5504] write(3, "1000", 4) = 4 [pid 5504] close(3) = 0 [pid 5504] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 229 [pid 5504] memfd_create("syzkaller", 0) = 3 [pid 5504] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5504] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5504] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5504] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5504] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5504] close(3) = 0 [pid 5504] mkdir("./file0", 0777) = 0 [ 136.109586][ T5504] loop0: detected capacity change from 0 to 8192 [ 136.119883][ T5504] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.132885][ T5504] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 136.142234][ T5504] REISERFS (device loop0): using ordered data mode [ 136.148806][ T5504] reiserfs: using flush barriers [pid 5504] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5504] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5504] chdir("./file0") = 0 [pid 5504] ioctl(4, LOOP_CLR_FD) = 0 [pid 5504] close(4) = 0 [pid 5504] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5504] mount(NULL, ".", 0x200000c0, 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 5504] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5504] chdir(".") = 0 [pid 5504] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5504] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5504] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5504] close(3) = 0 [pid 5504] close(4) = 0 [pid 5504] close(5) = 0 [pid 5504] close(6) = -1 EBADF (Bad file descriptor) [pid 5504] close(7) = -1 EBADF (Bad file descriptor) [pid 5504] close(8) = -1 EBADF (Bad file descriptor) [pid 5504] close(9) = -1 EBADF (Bad file descriptor) [pid 5504] close(10) = -1 EBADF (Bad file descriptor) [pid 5504] close(11) = -1 EBADF (Bad file descriptor) [pid 5504] close(12) = -1 EBADF (Bad file descriptor) [pid 5504] close(13) = -1 EBADF (Bad file descriptor) [pid 5504] close(14) = -1 EBADF (Bad file descriptor) [pid 5504] close(15) = -1 EBADF (Bad file descriptor) [pid 5504] close(16) = -1 EBADF (Bad file descriptor) [pid 5504] close(17) = -1 EBADF (Bad file descriptor) [pid 5504] close(18) = -1 EBADF (Bad file descriptor) [pid 5504] close(19) = -1 EBADF (Bad file descriptor) [pid 5504] close(20) = -1 EBADF (Bad file descriptor) [pid 5504] close(21) = -1 EBADF (Bad file descriptor) [pid 5504] close(22) = -1 EBADF (Bad file descriptor) [pid 5504] close(23) = -1 EBADF (Bad file descriptor) [pid 5504] close(24) = -1 EBADF (Bad file descriptor) [pid 5504] close(25) = -1 EBADF (Bad file descriptor) [pid 5504] close(26) = -1 EBADF (Bad file descriptor) [pid 5504] close(27) = -1 EBADF (Bad file descriptor) [pid 5504] close(28) = -1 EBADF (Bad file descriptor) [pid 5504] close(29) = -1 EBADF (Bad file descriptor) [pid 5504] exit_group(0) = ? [pid 5504] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=229, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./227/binderfs") = 0 [ 136.154868][ T5504] 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 [ 136.171319][ T5504] REISERFS (device loop0): checking transaction log (loop0) [ 136.179369][ T5504] REISERFS (device loop0): Using r5 hash to sort names [ 136.188488][ T5504] reiserfs: enabling write barrier flush mode [ 136.197051][ T5504] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./227/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./227/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./227/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./227") = 0 [pid 5039] mkdir("./228", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 230 ./strace-static-x86_64: Process 5506 attached [pid 5506] set_robust_list(0x555555e46660, 24) = 0 [pid 5506] chdir("./228") = 0 [pid 5506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5506] setpgid(0, 0) = 0 [pid 5506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5506] write(3, "1000", 4) = 4 [pid 5506] close(3) = 0 [pid 5506] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5506] memfd_create("syzkaller", 0) = 3 [pid 5506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5506] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5506] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5506] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5506] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5506] close(3) = 0 [pid 5506] mkdir("./file0", 0777) = 0 [ 136.318801][ T5506] loop0: detected capacity change from 0 to 8192 [ 136.329861][ T5506] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.342916][ T5506] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 136.352382][ T5506] REISERFS (device loop0): using ordered data mode [ 136.358938][ T5506] reiserfs: using flush barriers [pid 5506] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5506] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5506] chdir("./file0") = 0 [pid 5506] ioctl(4, LOOP_CLR_FD) = 0 [pid 5506] close(4) = 0 [pid 5506] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5506] mount(NULL, ".", 0x200000c0, 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 5506] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5506] chdir(".") = 0 [pid 5506] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5506] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5506] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5506] close(3) = 0 [pid 5506] close(4) = 0 [pid 5506] close(5) = 0 [pid 5506] close(6) = -1 EBADF (Bad file descriptor) [pid 5506] close(7) = -1 EBADF (Bad file descriptor) [pid 5506] close(8) = -1 EBADF (Bad file descriptor) [pid 5506] close(9) = -1 EBADF (Bad file descriptor) [pid 5506] close(10) = -1 EBADF (Bad file descriptor) [pid 5506] close(11) = -1 EBADF (Bad file descriptor) [pid 5506] close(12) = -1 EBADF (Bad file descriptor) [pid 5506] close(13) = -1 EBADF (Bad file descriptor) [pid 5506] close(14) = -1 EBADF (Bad file descriptor) [pid 5506] close(15) = -1 EBADF (Bad file descriptor) [pid 5506] close(16) = -1 EBADF (Bad file descriptor) [pid 5506] close(17) = -1 EBADF (Bad file descriptor) [pid 5506] close(18) = -1 EBADF (Bad file descriptor) [pid 5506] close(19) = -1 EBADF (Bad file descriptor) [pid 5506] close(20) = -1 EBADF (Bad file descriptor) [pid 5506] close(21) = -1 EBADF (Bad file descriptor) [pid 5506] close(22) = -1 EBADF (Bad file descriptor) [pid 5506] close(23) = -1 EBADF (Bad file descriptor) [pid 5506] close(24) = -1 EBADF (Bad file descriptor) [pid 5506] close(25) = -1 EBADF (Bad file descriptor) [pid 5506] close(26) = -1 EBADF (Bad file descriptor) [pid 5506] close(27) = -1 EBADF (Bad file descriptor) [pid 5506] close(28) = -1 EBADF (Bad file descriptor) [pid 5506] close(29) = -1 EBADF (Bad file descriptor) [pid 5506] exit_group(0) = ? [pid 5506] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=230, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./228/binderfs") = 0 [ 136.365127][ T5506] 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 [ 136.381557][ T5506] REISERFS (device loop0): checking transaction log (loop0) [ 136.389686][ T5506] REISERFS (device loop0): Using r5 hash to sort names [ 136.398456][ T5506] reiserfs: enabling write barrier flush mode [ 136.406776][ T5506] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./228/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./228/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./228/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./228") = 0 [pid 5039] mkdir("./229", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5508 attached [pid 5508] set_robust_list(0x555555e46660, 24) = 0 [pid 5508] chdir("./229" [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 231 [pid 5508] <... chdir resumed>) = 0 [pid 5508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5508] setpgid(0, 0) = 0 [pid 5508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5508] write(3, "1000", 4) = 4 [pid 5508] close(3) = 0 [pid 5508] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5508] memfd_create("syzkaller", 0) = 3 [pid 5508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5508] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5508] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5508] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5508] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5508] close(3) = 0 [pid 5508] mkdir("./file0", 0777) = 0 [ 136.540016][ T5508] loop0: detected capacity change from 0 to 8192 [ 136.549654][ T5508] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.562635][ T5508] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 136.571913][ T5508] REISERFS (device loop0): using ordered data mode [ 136.578603][ T5508] reiserfs: using flush barriers [pid 5508] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5508] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5508] chdir("./file0") = 0 [pid 5508] ioctl(4, LOOP_CLR_FD) = 0 [pid 5508] close(4) = 0 [pid 5508] mkdir(".", 0777) = -1 EEXIST (File exists) [ 136.584696][ T5508] 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 [ 136.601309][ T5508] REISERFS (device loop0): checking transaction log (loop0) [ 136.609668][ T5508] REISERFS (device loop0): Using r5 hash to sort names [ 136.625418][ T5508] reiserfs: enabling write barrier flush mode [pid 5508] mount(NULL, ".", 0x200000c0, 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 5508] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5508] chdir(".") = 0 [pid 5508] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5508] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5508] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5508] close(3) = 0 [pid 5508] close(4) = 0 [pid 5508] close(5) = 0 [pid 5508] close(6) = -1 EBADF (Bad file descriptor) [pid 5508] close(7) = -1 EBADF (Bad file descriptor) [pid 5508] close(8) = -1 EBADF (Bad file descriptor) [pid 5508] close(9) = -1 EBADF (Bad file descriptor) [pid 5508] close(10) = -1 EBADF (Bad file descriptor) [pid 5508] close(11) = -1 EBADF (Bad file descriptor) [pid 5508] close(12) = -1 EBADF (Bad file descriptor) [pid 5508] close(13) = -1 EBADF (Bad file descriptor) [pid 5508] close(14) = -1 EBADF (Bad file descriptor) [pid 5508] close(15) = -1 EBADF (Bad file descriptor) [pid 5508] close(16) = -1 EBADF (Bad file descriptor) [pid 5508] close(17) = -1 EBADF (Bad file descriptor) [pid 5508] close(18) = -1 EBADF (Bad file descriptor) [pid 5508] close(19) = -1 EBADF (Bad file descriptor) [pid 5508] close(20) = -1 EBADF (Bad file descriptor) [pid 5508] close(21) = -1 EBADF (Bad file descriptor) [pid 5508] close(22) = -1 EBADF (Bad file descriptor) [pid 5508] close(23) = -1 EBADF (Bad file descriptor) [pid 5508] close(24) = -1 EBADF (Bad file descriptor) [pid 5508] close(25) = -1 EBADF (Bad file descriptor) [pid 5508] close(26) = -1 EBADF (Bad file descriptor) [pid 5508] close(27) = -1 EBADF (Bad file descriptor) [pid 5508] close(28) = -1 EBADF (Bad file descriptor) [pid 5508] close(29) = -1 EBADF (Bad file descriptor) [pid 5508] exit_group(0) = ? [pid 5508] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=231, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./229/binderfs") = 0 [ 136.636774][ T5508] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./229/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./229/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./229/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./229") = 0 [pid 5039] mkdir("./230", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5510 attached [pid 5510] set_robust_list(0x555555e46660, 24) = 0 [pid 5510] chdir("./230") = 0 [pid 5510] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5510] setpgid(0, 0) = 0 [pid 5510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5510] write(3, "1000", 4) = 4 [pid 5510] close(3) = 0 [pid 5510] symlink("/dev/binderfs", "./binderfs" [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 232 [pid 5510] <... symlink resumed>) = 0 [pid 5510] memfd_create("syzkaller", 0) = 3 [pid 5510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5510] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5510] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5510] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5510] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5510] close(3) = 0 [pid 5510] mkdir("./file0", 0777) = 0 [ 136.757059][ T5510] loop0: detected capacity change from 0 to 8192 [ 136.766601][ T5510] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.779569][ T5510] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 136.788993][ T5510] REISERFS (device loop0): using ordered data mode [ 136.795652][ T5510] reiserfs: using flush barriers [pid 5510] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5510] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5510] chdir("./file0") = 0 [pid 5510] ioctl(4, LOOP_CLR_FD) = 0 [pid 5510] close(4) = 0 [pid 5510] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5510] mount(NULL, ".", 0x200000c0, 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 5510] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5510] chdir(".") = 0 [pid 5510] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5510] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5510] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5510] close(3) = 0 [pid 5510] close(4) = 0 [pid 5510] close(5) = 0 [pid 5510] close(6) = -1 EBADF (Bad file descriptor) [pid 5510] close(7) = -1 EBADF (Bad file descriptor) [pid 5510] close(8) = -1 EBADF (Bad file descriptor) [pid 5510] close(9) = -1 EBADF (Bad file descriptor) [pid 5510] close(10) = -1 EBADF (Bad file descriptor) [pid 5510] close(11) = -1 EBADF (Bad file descriptor) [pid 5510] close(12) = -1 EBADF (Bad file descriptor) [pid 5510] close(13) = -1 EBADF (Bad file descriptor) [pid 5510] close(14) = -1 EBADF (Bad file descriptor) [pid 5510] close(15) = -1 EBADF (Bad file descriptor) [pid 5510] close(16) = -1 EBADF (Bad file descriptor) [pid 5510] close(17) = -1 EBADF (Bad file descriptor) [pid 5510] close(18) = -1 EBADF (Bad file descriptor) [pid 5510] close(19) = -1 EBADF (Bad file descriptor) [pid 5510] close(20) = -1 EBADF (Bad file descriptor) [pid 5510] close(21) = -1 EBADF (Bad file descriptor) [pid 5510] close(22) = -1 EBADF (Bad file descriptor) [pid 5510] close(23) = -1 EBADF (Bad file descriptor) [pid 5510] close(24) = -1 EBADF (Bad file descriptor) [pid 5510] close(25) = -1 EBADF (Bad file descriptor) [pid 5510] close(26) = -1 EBADF (Bad file descriptor) [pid 5510] close(27) = -1 EBADF (Bad file descriptor) [pid 5510] close(28) = -1 EBADF (Bad file descriptor) [pid 5510] close(29) = -1 EBADF (Bad file descriptor) [pid 5510] exit_group(0) = ? [pid 5510] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=232, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5039] umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./230/binderfs") = 0 [ 136.801693][ T5510] 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 [ 136.818156][ T5510] REISERFS (device loop0): checking transaction log (loop0) [ 136.826276][ T5510] REISERFS (device loop0): Using r5 hash to sort names [ 136.836184][ T5510] reiserfs: enabling write barrier flush mode [ 136.848013][ T5510] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./230/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./230/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./230/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./230") = 0 [pid 5039] mkdir("./231", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5512 attached , child_tidptr=0x555555e46650) = 233 [pid 5512] set_robust_list(0x555555e46660, 24) = 0 [pid 5512] chdir("./231") = 0 [pid 5512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5512] setpgid(0, 0) = 0 [pid 5512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5512] write(3, "1000", 4) = 4 [pid 5512] close(3) = 0 [pid 5512] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5512] memfd_create("syzkaller", 0) = 3 [pid 5512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5512] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5512] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5512] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5512] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5512] close(3) = 0 [pid 5512] mkdir("./file0", 0777) = 0 [ 136.986039][ T5512] loop0: detected capacity change from 0 to 8192 [ 136.995489][ T5512] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.008532][ T5512] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 137.017801][ T5512] REISERFS (device loop0): using ordered data mode [ 137.024305][ T5512] reiserfs: using flush barriers [pid 5512] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5512] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5512] chdir("./file0") = 0 [pid 5512] ioctl(4, LOOP_CLR_FD) = 0 [pid 5512] close(4) = 0 [pid 5512] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5512] mount(NULL, ".", 0x200000c0, 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 5512] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5512] chdir(".") = 0 [pid 5512] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5512] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5512] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5512] close(3) = 0 [pid 5512] close(4) = 0 [pid 5512] close(5) = 0 [pid 5512] close(6) = -1 EBADF (Bad file descriptor) [pid 5512] close(7) = -1 EBADF (Bad file descriptor) [pid 5512] close(8) = -1 EBADF (Bad file descriptor) [pid 5512] close(9) = -1 EBADF (Bad file descriptor) [pid 5512] close(10) = -1 EBADF (Bad file descriptor) [pid 5512] close(11) = -1 EBADF (Bad file descriptor) [pid 5512] close(12) = -1 EBADF (Bad file descriptor) [pid 5512] close(13) = -1 EBADF (Bad file descriptor) [pid 5512] close(14) = -1 EBADF (Bad file descriptor) [pid 5512] close(15) = -1 EBADF (Bad file descriptor) [pid 5512] close(16) = -1 EBADF (Bad file descriptor) [pid 5512] close(17) = -1 EBADF (Bad file descriptor) [pid 5512] close(18) = -1 EBADF (Bad file descriptor) [pid 5512] close(19) = -1 EBADF (Bad file descriptor) [pid 5512] close(20) = -1 EBADF (Bad file descriptor) [pid 5512] close(21) = -1 EBADF (Bad file descriptor) [pid 5512] close(22) = -1 EBADF (Bad file descriptor) [pid 5512] close(23) = -1 EBADF (Bad file descriptor) [pid 5512] close(24) = -1 EBADF (Bad file descriptor) [pid 5512] close(25) = -1 EBADF (Bad file descriptor) [pid 5512] close(26) = -1 EBADF (Bad file descriptor) [pid 5512] close(27) = -1 EBADF (Bad file descriptor) [pid 5512] close(28) = -1 EBADF (Bad file descriptor) [pid 5512] close(29) = -1 EBADF (Bad file descriptor) [pid 5512] exit_group(0) = ? [pid 5512] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=233, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5039] umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./231/binderfs") = 0 [ 137.030485][ T5512] 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 [ 137.046981][ T5512] REISERFS (device loop0): checking transaction log (loop0) [ 137.055425][ T5512] REISERFS (device loop0): Using r5 hash to sort names [ 137.066894][ T5512] reiserfs: enabling write barrier flush mode [ 137.075039][ T5512] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./231/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./231/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./231/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./231") = 0 [pid 5039] mkdir("./232", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 234 ./strace-static-x86_64: Process 5514 attached [pid 5514] set_robust_list(0x555555e46660, 24) = 0 [pid 5514] chdir("./232") = 0 [pid 5514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5514] setpgid(0, 0) = 0 [pid 5514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5514] write(3, "1000", 4) = 4 [pid 5514] close(3) = 0 [pid 5514] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5514] memfd_create("syzkaller", 0) = 3 [pid 5514] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5514] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5514] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5514] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5514] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5514] close(3) = 0 [pid 5514] mkdir("./file0", 0777) = 0 [ 137.198550][ T5514] loop0: detected capacity change from 0 to 8192 [ 137.207839][ T5514] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.220906][ T5514] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 137.230210][ T5514] REISERFS (device loop0): using ordered data mode [ 137.236744][ T5514] reiserfs: using flush barriers [pid 5514] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5514] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5514] chdir("./file0") = 0 [pid 5514] ioctl(4, LOOP_CLR_FD) = 0 [pid 5514] close(4) = 0 [pid 5514] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5514] mount(NULL, ".", 0x200000c0, 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 5514] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5514] chdir(".") = 0 [pid 5514] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5514] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5514] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5514] close(3) = 0 [pid 5514] close(4) = 0 [pid 5514] close(5) = 0 [pid 5514] close(6) = -1 EBADF (Bad file descriptor) [pid 5514] close(7) = -1 EBADF (Bad file descriptor) [pid 5514] close(8) = -1 EBADF (Bad file descriptor) [pid 5514] close(9) = -1 EBADF (Bad file descriptor) [pid 5514] close(10) = -1 EBADF (Bad file descriptor) [pid 5514] close(11) = -1 EBADF (Bad file descriptor) [pid 5514] close(12) = -1 EBADF (Bad file descriptor) [pid 5514] close(13) = -1 EBADF (Bad file descriptor) [pid 5514] close(14) = -1 EBADF (Bad file descriptor) [pid 5514] close(15) = -1 EBADF (Bad file descriptor) [pid 5514] close(16) = -1 EBADF (Bad file descriptor) [pid 5514] close(17) = -1 EBADF (Bad file descriptor) [pid 5514] close(18) = -1 EBADF (Bad file descriptor) [pid 5514] close(19) = -1 EBADF (Bad file descriptor) [pid 5514] close(20) = -1 EBADF (Bad file descriptor) [pid 5514] close(21) = -1 EBADF (Bad file descriptor) [pid 5514] close(22) = -1 EBADF (Bad file descriptor) [pid 5514] close(23) = -1 EBADF (Bad file descriptor) [pid 5514] close(24) = -1 EBADF (Bad file descriptor) [pid 5514] close(25) = -1 EBADF (Bad file descriptor) [pid 5514] close(26) = -1 EBADF (Bad file descriptor) [pid 5514] close(27) = -1 EBADF (Bad file descriptor) [pid 5514] close(28) = -1 EBADF (Bad file descriptor) [pid 5514] close(29) = -1 EBADF (Bad file descriptor) [pid 5514] exit_group(0) = ? [pid 5514] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=234, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- [pid 5039] umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./232/binderfs") = 0 [ 137.242847][ T5514] 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 [ 137.259390][ T5514] REISERFS (device loop0): checking transaction log (loop0) [ 137.267477][ T5514] REISERFS (device loop0): Using r5 hash to sort names [ 137.277031][ T5514] reiserfs: enabling write barrier flush mode [ 137.285460][ T5514] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./232/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./232/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./232/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./232") = 0 [pid 5039] mkdir("./233", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 235 ./strace-static-x86_64: Process 5516 attached [pid 5516] set_robust_list(0x555555e46660, 24) = 0 [pid 5516] chdir("./233") = 0 [pid 5516] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5516] setpgid(0, 0) = 0 [pid 5516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5516] write(3, "1000", 4) = 4 [pid 5516] close(3) = 0 [pid 5516] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5516] memfd_create("syzkaller", 0) = 3 [pid 5516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5516] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5516] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5516] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5516] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5516] close(3) = 0 [pid 5516] mkdir("./file0", 0777) = 0 [ 137.405247][ T5516] loop0: detected capacity change from 0 to 8192 [ 137.415091][ T5516] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.428400][ T5516] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 137.437813][ T5516] REISERFS (device loop0): using ordered data mode [ 137.444337][ T5516] reiserfs: using flush barriers [pid 5516] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5516] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5516] chdir("./file0") = 0 [pid 5516] ioctl(4, LOOP_CLR_FD) = 0 [pid 5516] close(4) = 0 [pid 5516] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5516] mount(NULL, ".", 0x200000c0, 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 5516] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5516] chdir(".") = 0 [pid 5516] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5516] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5516] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5516] close(3) = 0 [pid 5516] close(4) = 0 [pid 5516] close(5) = 0 [pid 5516] close(6) = -1 EBADF (Bad file descriptor) [pid 5516] close(7) = -1 EBADF (Bad file descriptor) [pid 5516] close(8) = -1 EBADF (Bad file descriptor) [pid 5516] close(9) = -1 EBADF (Bad file descriptor) [pid 5516] close(10) = -1 EBADF (Bad file descriptor) [pid 5516] close(11) = -1 EBADF (Bad file descriptor) [pid 5516] close(12) = -1 EBADF (Bad file descriptor) [pid 5516] close(13) = -1 EBADF (Bad file descriptor) [pid 5516] close(14) = -1 EBADF (Bad file descriptor) [pid 5516] close(15) = -1 EBADF (Bad file descriptor) [pid 5516] close(16) = -1 EBADF (Bad file descriptor) [pid 5516] close(17) = -1 EBADF (Bad file descriptor) [pid 5516] close(18) = -1 EBADF (Bad file descriptor) [pid 5516] close(19) = -1 EBADF (Bad file descriptor) [pid 5516] close(20) = -1 EBADF (Bad file descriptor) [pid 5516] close(21) = -1 EBADF (Bad file descriptor) [pid 5516] close(22) = -1 EBADF (Bad file descriptor) [pid 5516] close(23) = -1 EBADF (Bad file descriptor) [pid 5516] close(24) = -1 EBADF (Bad file descriptor) [pid 5516] close(25) = -1 EBADF (Bad file descriptor) [pid 5516] close(26) = -1 EBADF (Bad file descriptor) [pid 5516] close(27) = -1 EBADF (Bad file descriptor) [pid 5516] close(28) = -1 EBADF (Bad file descriptor) [pid 5516] close(29) = -1 EBADF (Bad file descriptor) [pid 5516] exit_group(0) = ? [pid 5516] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=235, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./233/binderfs") = 0 [ 137.450674][ T5516] 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 [ 137.467090][ T5516] REISERFS (device loop0): checking transaction log (loop0) [ 137.475007][ T5516] REISERFS (device loop0): Using r5 hash to sort names [ 137.486548][ T5516] reiserfs: enabling write barrier flush mode [ 137.494993][ T5516] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./233/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./233/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./233/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./233") = 0 [pid 5039] mkdir("./234", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 236 ./strace-static-x86_64: Process 5518 attached [pid 5518] set_robust_list(0x555555e46660, 24) = 0 [pid 5518] chdir("./234") = 0 [pid 5518] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5518] setpgid(0, 0) = 0 [pid 5518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5518] write(3, "1000", 4) = 4 [pid 5518] close(3) = 0 [pid 5518] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5518] memfd_create("syzkaller", 0) = 3 [pid 5518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5518] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5518] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5518] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5518] close(3) = 0 [pid 5518] mkdir("./file0", 0777) = 0 [ 137.614541][ T5518] loop0: detected capacity change from 0 to 8192 [ 137.623899][ T5518] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.636962][ T5518] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 137.646220][ T5518] REISERFS (device loop0): using ordered data mode [ 137.652739][ T5518] reiserfs: using flush barriers [pid 5518] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5518] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5518] chdir("./file0") = 0 [pid 5518] ioctl(4, LOOP_CLR_FD) = 0 [pid 5518] close(4) = 0 [pid 5518] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5518] mount(NULL, ".", 0x200000c0, 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 5518] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5518] chdir(".") = 0 [pid 5518] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5518] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5518] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5518] close(3) = 0 [pid 5518] close(4) = 0 [pid 5518] close(5) = 0 [pid 5518] close(6) = -1 EBADF (Bad file descriptor) [pid 5518] close(7) = -1 EBADF (Bad file descriptor) [pid 5518] close(8) = -1 EBADF (Bad file descriptor) [pid 5518] close(9) = -1 EBADF (Bad file descriptor) [pid 5518] close(10) = -1 EBADF (Bad file descriptor) [pid 5518] close(11) = -1 EBADF (Bad file descriptor) [pid 5518] close(12) = -1 EBADF (Bad file descriptor) [pid 5518] close(13) = -1 EBADF (Bad file descriptor) [pid 5518] close(14) = -1 EBADF (Bad file descriptor) [pid 5518] close(15) = -1 EBADF (Bad file descriptor) [pid 5518] close(16) = -1 EBADF (Bad file descriptor) [pid 5518] close(17) = -1 EBADF (Bad file descriptor) [pid 5518] close(18) = -1 EBADF (Bad file descriptor) [pid 5518] close(19) = -1 EBADF (Bad file descriptor) [pid 5518] close(20) = -1 EBADF (Bad file descriptor) [pid 5518] close(21) = -1 EBADF (Bad file descriptor) [pid 5518] close(22) = -1 EBADF (Bad file descriptor) [pid 5518] close(23) = -1 EBADF (Bad file descriptor) [pid 5518] close(24) = -1 EBADF (Bad file descriptor) [pid 5518] close(25) = -1 EBADF (Bad file descriptor) [pid 5518] close(26) = -1 EBADF (Bad file descriptor) [pid 5518] close(27) = -1 EBADF (Bad file descriptor) [pid 5518] close(28) = -1 EBADF (Bad file descriptor) [pid 5518] close(29) = -1 EBADF (Bad file descriptor) [pid 5518] exit_group(0) = ? [pid 5518] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=236, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./234/binderfs") = 0 [ 137.658992][ T5518] 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 [ 137.675600][ T5518] REISERFS (device loop0): checking transaction log (loop0) [ 137.683502][ T5518] REISERFS (device loop0): Using r5 hash to sort names [ 137.693996][ T5518] reiserfs: enabling write barrier flush mode [ 137.703401][ T5518] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./234/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./234/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./234/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./234") = 0 [pid 5039] mkdir("./235", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5520 attached , child_tidptr=0x555555e46650) = 237 [pid 5520] set_robust_list(0x555555e46660, 24) = 0 [pid 5520] chdir("./235") = 0 [pid 5520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5520] setpgid(0, 0) = 0 [pid 5520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5520] write(3, "1000", 4) = 4 [pid 5520] close(3) = 0 [pid 5520] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5520] memfd_create("syzkaller", 0) = 3 [pid 5520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5520] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5520] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5520] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5520] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5520] close(3) = 0 [pid 5520] mkdir("./file0", 0777) = 0 [ 137.815858][ T5520] loop0: detected capacity change from 0 to 8192 [ 137.825553][ T5520] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.838617][ T5520] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 137.847862][ T5520] REISERFS (device loop0): using ordered data mode [ 137.854372][ T5520] reiserfs: using flush barriers [pid 5520] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5520] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5520] chdir("./file0") = 0 [pid 5520] ioctl(4, LOOP_CLR_FD) = 0 [pid 5520] close(4) = 0 [pid 5520] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5520] mount(NULL, ".", 0x200000c0, 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 5520] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5520] chdir(".") = 0 [pid 5520] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5520] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5520] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5520] close(3) = 0 [pid 5520] close(4) = 0 [pid 5520] close(5) = 0 [pid 5520] close(6) = -1 EBADF (Bad file descriptor) [pid 5520] close(7) = -1 EBADF (Bad file descriptor) [pid 5520] close(8) = -1 EBADF (Bad file descriptor) [pid 5520] close(9) = -1 EBADF (Bad file descriptor) [pid 5520] close(10) = -1 EBADF (Bad file descriptor) [pid 5520] close(11) = -1 EBADF (Bad file descriptor) [pid 5520] close(12) = -1 EBADF (Bad file descriptor) [pid 5520] close(13) = -1 EBADF (Bad file descriptor) [pid 5520] close(14) = -1 EBADF (Bad file descriptor) [pid 5520] close(15) = -1 EBADF (Bad file descriptor) [pid 5520] close(16) = -1 EBADF (Bad file descriptor) [pid 5520] close(17) = -1 EBADF (Bad file descriptor) [pid 5520] close(18) = -1 EBADF (Bad file descriptor) [pid 5520] close(19) = -1 EBADF (Bad file descriptor) [pid 5520] close(20) = -1 EBADF (Bad file descriptor) [pid 5520] close(21) = -1 EBADF (Bad file descriptor) [pid 5520] close(22) = -1 EBADF (Bad file descriptor) [pid 5520] close(23) = -1 EBADF (Bad file descriptor) [pid 5520] close(24) = -1 EBADF (Bad file descriptor) [pid 5520] close(25) = -1 EBADF (Bad file descriptor) [pid 5520] close(26) = -1 EBADF (Bad file descriptor) [pid 5520] close(27) = -1 EBADF (Bad file descriptor) [pid 5520] close(28) = -1 EBADF (Bad file descriptor) [pid 5520] close(29) = -1 EBADF (Bad file descriptor) [pid 5520] exit_group(0) = ? [pid 5520] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=237, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./235/binderfs") = 0 [ 137.860594][ T5520] 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 [ 137.876994][ T5520] REISERFS (device loop0): checking transaction log (loop0) [ 137.884968][ T5520] REISERFS (device loop0): Using r5 hash to sort names [ 137.895664][ T5520] reiserfs: enabling write barrier flush mode [ 137.904720][ T5520] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./235/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./235/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./235/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./235") = 0 [pid 5039] mkdir("./236", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5522 attached , child_tidptr=0x555555e46650) = 238 [pid 5522] set_robust_list(0x555555e46660, 24) = 0 [pid 5522] chdir("./236") = 0 [pid 5522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5522] setpgid(0, 0) = 0 [pid 5522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5522] write(3, "1000", 4) = 4 [pid 5522] close(3) = 0 [pid 5522] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5522] memfd_create("syzkaller", 0) = 3 [pid 5522] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5522] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5522] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5522] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5522] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5522] close(3) = 0 [pid 5522] mkdir("./file0", 0777) = 0 [ 138.035271][ T5522] loop0: detected capacity change from 0 to 8192 [ 138.045246][ T5522] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.058712][ T5522] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 138.067987][ T5522] REISERFS (device loop0): using ordered data mode [ 138.074536][ T5522] reiserfs: using flush barriers [pid 5522] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5522] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5522] chdir("./file0") = 0 [pid 5522] ioctl(4, LOOP_CLR_FD) = 0 [pid 5522] close(4) = 0 [pid 5522] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5522] mount(NULL, ".", 0x200000c0, 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 5522] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5522] chdir(".") = 0 [pid 5522] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5522] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5522] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5522] close(3) = 0 [pid 5522] close(4) = 0 [pid 5522] close(5) = 0 [pid 5522] close(6) = -1 EBADF (Bad file descriptor) [pid 5522] close(7) = -1 EBADF (Bad file descriptor) [pid 5522] close(8) = -1 EBADF (Bad file descriptor) [pid 5522] close(9) = -1 EBADF (Bad file descriptor) [pid 5522] close(10) = -1 EBADF (Bad file descriptor) [pid 5522] close(11) = -1 EBADF (Bad file descriptor) [pid 5522] close(12) = -1 EBADF (Bad file descriptor) [pid 5522] close(13) = -1 EBADF (Bad file descriptor) [pid 5522] close(14) = -1 EBADF (Bad file descriptor) [pid 5522] close(15) = -1 EBADF (Bad file descriptor) [pid 5522] close(16) = -1 EBADF (Bad file descriptor) [pid 5522] close(17) = -1 EBADF (Bad file descriptor) [pid 5522] close(18) = -1 EBADF (Bad file descriptor) [pid 5522] close(19) = -1 EBADF (Bad file descriptor) [pid 5522] close(20) = -1 EBADF (Bad file descriptor) [pid 5522] close(21) = -1 EBADF (Bad file descriptor) [pid 5522] close(22) = -1 EBADF (Bad file descriptor) [pid 5522] close(23) = -1 EBADF (Bad file descriptor) [pid 5522] close(24) = -1 EBADF (Bad file descriptor) [pid 5522] close(25) = -1 EBADF (Bad file descriptor) [pid 5522] close(26) = -1 EBADF (Bad file descriptor) [pid 5522] close(27) = -1 EBADF (Bad file descriptor) [pid 5522] close(28) = -1 EBADF (Bad file descriptor) [pid 5522] close(29) = -1 EBADF (Bad file descriptor) [pid 5522] exit_group(0) = ? [pid 5522] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=238, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./236/binderfs") = 0 [ 138.080657][ T5522] 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 [ 138.097134][ T5522] REISERFS (device loop0): checking transaction log (loop0) [ 138.105006][ T5522] REISERFS (device loop0): Using r5 hash to sort names [ 138.115597][ T5522] reiserfs: enabling write barrier flush mode [ 138.123931][ T5522] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./236/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./236/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./236/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./236") = 0 [pid 5039] mkdir("./237", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5524 attached , child_tidptr=0x555555e46650) = 239 [pid 5524] set_robust_list(0x555555e46660, 24) = 0 [pid 5524] chdir("./237") = 0 [pid 5524] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5524] setpgid(0, 0) = 0 [pid 5524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5524] write(3, "1000", 4) = 4 [pid 5524] close(3) = 0 [pid 5524] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5524] memfd_create("syzkaller", 0) = 3 [pid 5524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5524] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5524] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5524] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5524] close(3) = 0 [pid 5524] mkdir("./file0", 0777) = 0 [ 138.240543][ T5524] loop0: detected capacity change from 0 to 8192 [ 138.250688][ T5524] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.263684][ T5524] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 138.272984][ T5524] REISERFS (device loop0): using ordered data mode [ 138.279526][ T5524] reiserfs: using flush barriers [pid 5524] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5524] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5524] chdir("./file0") = 0 [pid 5524] ioctl(4, LOOP_CLR_FD) = 0 [pid 5524] close(4) = 0 [pid 5524] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5524] mount(NULL, ".", 0x200000c0, 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 5524] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5524] chdir(".") = 0 [pid 5524] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5524] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5524] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5524] close(3) = 0 [pid 5524] close(4) = 0 [pid 5524] close(5) = 0 [pid 5524] close(6) = -1 EBADF (Bad file descriptor) [pid 5524] close(7) = -1 EBADF (Bad file descriptor) [pid 5524] close(8) = -1 EBADF (Bad file descriptor) [pid 5524] close(9) = -1 EBADF (Bad file descriptor) [pid 5524] close(10) = -1 EBADF (Bad file descriptor) [pid 5524] close(11) = -1 EBADF (Bad file descriptor) [pid 5524] close(12) = -1 EBADF (Bad file descriptor) [pid 5524] close(13) = -1 EBADF (Bad file descriptor) [pid 5524] close(14) = -1 EBADF (Bad file descriptor) [pid 5524] close(15) = -1 EBADF (Bad file descriptor) [pid 5524] close(16) = -1 EBADF (Bad file descriptor) [pid 5524] close(17) = -1 EBADF (Bad file descriptor) [pid 5524] close(18) = -1 EBADF (Bad file descriptor) [pid 5524] close(19) = -1 EBADF (Bad file descriptor) [pid 5524] close(20) = -1 EBADF (Bad file descriptor) [pid 5524] close(21) = -1 EBADF (Bad file descriptor) [pid 5524] close(22) = -1 EBADF (Bad file descriptor) [pid 5524] close(23) = -1 EBADF (Bad file descriptor) [pid 5524] close(24) = -1 EBADF (Bad file descriptor) [pid 5524] close(25) = -1 EBADF (Bad file descriptor) [pid 5524] close(26) = -1 EBADF (Bad file descriptor) [pid 5524] close(27) = -1 EBADF (Bad file descriptor) [pid 5524] close(28) = -1 EBADF (Bad file descriptor) [pid 5524] close(29) = -1 EBADF (Bad file descriptor) [pid 5524] exit_group(0) = ? [pid 5524] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=239, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./237/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./237/binderfs") = 0 [ 138.285771][ T5524] 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 [ 138.302192][ T5524] REISERFS (device loop0): checking transaction log (loop0) [ 138.310269][ T5524] REISERFS (device loop0): Using r5 hash to sort names [ 138.319797][ T5524] reiserfs: enabling write barrier flush mode [ 138.328762][ T5524] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./237/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./237/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./237/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./237") = 0 [pid 5039] mkdir("./238", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 240 ./strace-static-x86_64: Process 5526 attached [pid 5526] set_robust_list(0x555555e46660, 24) = 0 [pid 5526] chdir("./238") = 0 [pid 5526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5526] setpgid(0, 0) = 0 [pid 5526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5526] write(3, "1000", 4) = 4 [pid 5526] close(3) = 0 [pid 5526] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5526] memfd_create("syzkaller", 0) = 3 [pid 5526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5526] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5526] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5526] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5526] close(3) = 0 [pid 5526] mkdir("./file0", 0777) = 0 [ 138.456482][ T5526] loop0: detected capacity change from 0 to 8192 [ 138.466065][ T5526] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.479103][ T5526] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 138.488349][ T5526] REISERFS (device loop0): using ordered data mode [ 138.494917][ T5526] reiserfs: using flush barriers [pid 5526] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5526] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5526] chdir("./file0") = 0 [pid 5526] ioctl(4, LOOP_CLR_FD) = 0 [pid 5526] close(4) = 0 [pid 5526] mkdir(".", 0777) = -1 EEXIST (File exists) [ 138.501033][ T5526] 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 [ 138.517619][ T5526] REISERFS (device loop0): checking transaction log (loop0) [ 138.525707][ T5526] REISERFS (device loop0): Using r5 hash to sort names [ 138.542160][ T5526] reiserfs: enabling write barrier flush mode [pid 5526] mount(NULL, ".", 0x200000c0, 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 5526] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5526] chdir(".") = 0 [pid 5526] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5526] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5526] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5526] close(3) = 0 [pid 5526] close(4) = 0 [pid 5526] close(5) = 0 [pid 5526] close(6) = -1 EBADF (Bad file descriptor) [pid 5526] close(7) = -1 EBADF (Bad file descriptor) [pid 5526] close(8) = -1 EBADF (Bad file descriptor) [pid 5526] close(9) = -1 EBADF (Bad file descriptor) [pid 5526] close(10) = -1 EBADF (Bad file descriptor) [pid 5526] close(11) = -1 EBADF (Bad file descriptor) [pid 5526] close(12) = -1 EBADF (Bad file descriptor) [pid 5526] close(13) = -1 EBADF (Bad file descriptor) [pid 5526] close(14) = -1 EBADF (Bad file descriptor) [pid 5526] close(15) = -1 EBADF (Bad file descriptor) [pid 5526] close(16) = -1 EBADF (Bad file descriptor) [pid 5526] close(17) = -1 EBADF (Bad file descriptor) [pid 5526] close(18) = -1 EBADF (Bad file descriptor) [pid 5526] close(19) = -1 EBADF (Bad file descriptor) [pid 5526] close(20) = -1 EBADF (Bad file descriptor) [pid 5526] close(21) = -1 EBADF (Bad file descriptor) [pid 5526] close(22) = -1 EBADF (Bad file descriptor) [pid 5526] close(23) = -1 EBADF (Bad file descriptor) [pid 5526] close(24) = -1 EBADF (Bad file descriptor) [pid 5526] close(25) = -1 EBADF (Bad file descriptor) [pid 5526] close(26) = -1 EBADF (Bad file descriptor) [pid 5526] close(27) = -1 EBADF (Bad file descriptor) [pid 5526] close(28) = -1 EBADF (Bad file descriptor) [pid 5526] close(29) = -1 EBADF (Bad file descriptor) [pid 5526] exit_group(0) = ? [pid 5526] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=240, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./238/binderfs") = 0 [ 138.551635][ T5526] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./238/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./238/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./238/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./238") = 0 [pid 5039] mkdir("./239", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 241 ./strace-static-x86_64: Process 5528 attached [pid 5528] set_robust_list(0x555555e46660, 24) = 0 [pid 5528] chdir("./239") = 0 [pid 5528] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5528] setpgid(0, 0) = 0 [pid 5528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5528] write(3, "1000", 4) = 4 [pid 5528] close(3) = 0 [pid 5528] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5528] memfd_create("syzkaller", 0) = 3 [pid 5528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5528] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5528] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5528] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5528] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5528] close(3) = 0 [pid 5528] mkdir("./file0", 0777) = 0 [ 138.671542][ T5528] loop0: detected capacity change from 0 to 8192 [ 138.681290][ T5528] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.694330][ T5528] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 138.703550][ T5528] REISERFS (device loop0): using ordered data mode [ 138.710182][ T5528] reiserfs: using flush barriers [pid 5528] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5528] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5528] chdir("./file0") = 0 [pid 5528] ioctl(4, LOOP_CLR_FD) = 0 [pid 5528] close(4) = 0 [pid 5528] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5528] mount(NULL, ".", 0x200000c0, 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 5528] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5528] chdir(".") = 0 [pid 5528] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5528] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5528] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5528] close(3) = 0 [pid 5528] close(4) = 0 [pid 5528] close(5) = 0 [pid 5528] close(6) = -1 EBADF (Bad file descriptor) [pid 5528] close(7) = -1 EBADF (Bad file descriptor) [pid 5528] close(8) = -1 EBADF (Bad file descriptor) [pid 5528] close(9) = -1 EBADF (Bad file descriptor) [pid 5528] close(10) = -1 EBADF (Bad file descriptor) [pid 5528] close(11) = -1 EBADF (Bad file descriptor) [pid 5528] close(12) = -1 EBADF (Bad file descriptor) [pid 5528] close(13) = -1 EBADF (Bad file descriptor) [pid 5528] close(14) = -1 EBADF (Bad file descriptor) [pid 5528] close(15) = -1 EBADF (Bad file descriptor) [pid 5528] close(16) = -1 EBADF (Bad file descriptor) [pid 5528] close(17) = -1 EBADF (Bad file descriptor) [pid 5528] close(18) = -1 EBADF (Bad file descriptor) [pid 5528] close(19) = -1 EBADF (Bad file descriptor) [pid 5528] close(20) = -1 EBADF (Bad file descriptor) [pid 5528] close(21) = -1 EBADF (Bad file descriptor) [pid 5528] close(22) = -1 EBADF (Bad file descriptor) [pid 5528] close(23) = -1 EBADF (Bad file descriptor) [pid 5528] close(24) = -1 EBADF (Bad file descriptor) [pid 5528] close(25) = -1 EBADF (Bad file descriptor) [pid 5528] close(26) = -1 EBADF (Bad file descriptor) [pid 5528] close(27) = -1 EBADF (Bad file descriptor) [pid 5528] close(28) = -1 EBADF (Bad file descriptor) [pid 5528] close(29) = -1 EBADF (Bad file descriptor) [pid 5528] exit_group(0) = ? [pid 5528] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=241, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./239/binderfs") = 0 [ 138.716308][ T5528] 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 [ 138.732890][ T5528] REISERFS (device loop0): checking transaction log (loop0) [ 138.740964][ T5528] REISERFS (device loop0): Using r5 hash to sort names [ 138.751724][ T5528] reiserfs: enabling write barrier flush mode [ 138.760645][ T5528] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./239/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./239/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./239/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./239") = 0 [pid 5039] mkdir("./240", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5530 attached , child_tidptr=0x555555e46650) = 242 [pid 5530] set_robust_list(0x555555e46660, 24) = 0 [pid 5530] chdir("./240") = 0 [pid 5530] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5530] setpgid(0, 0) = 0 [pid 5530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5530] write(3, "1000", 4) = 4 [pid 5530] close(3) = 0 [pid 5530] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5530] memfd_create("syzkaller", 0) = 3 [pid 5530] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5530] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5530] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5530] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5530] close(3) = 0 [pid 5530] mkdir("./file0", 0777) = 0 [ 138.889494][ T5530] loop0: detected capacity change from 0 to 8192 [ 138.899824][ T5530] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.912958][ T5530] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 138.922397][ T5530] REISERFS (device loop0): using ordered data mode [ 138.929030][ T5530] reiserfs: using flush barriers [pid 5530] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5530] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5530] chdir("./file0") = 0 [pid 5530] ioctl(4, LOOP_CLR_FD) = 0 [pid 5530] close(4) = 0 [pid 5530] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5530] mount(NULL, ".", 0x200000c0, 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 5530] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5530] chdir(".") = 0 [pid 5530] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5530] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5530] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5530] close(3) = 0 [pid 5530] close(4) = 0 [pid 5530] close(5) = 0 [pid 5530] close(6) = -1 EBADF (Bad file descriptor) [pid 5530] close(7) = -1 EBADF (Bad file descriptor) [pid 5530] close(8) = -1 EBADF (Bad file descriptor) [pid 5530] close(9) = -1 EBADF (Bad file descriptor) [pid 5530] close(10) = -1 EBADF (Bad file descriptor) [pid 5530] close(11) = -1 EBADF (Bad file descriptor) [pid 5530] close(12) = -1 EBADF (Bad file descriptor) [pid 5530] close(13) = -1 EBADF (Bad file descriptor) [pid 5530] close(14) = -1 EBADF (Bad file descriptor) [pid 5530] close(15) = -1 EBADF (Bad file descriptor) [pid 5530] close(16) = -1 EBADF (Bad file descriptor) [pid 5530] close(17) = -1 EBADF (Bad file descriptor) [pid 5530] close(18) = -1 EBADF (Bad file descriptor) [pid 5530] close(19) = -1 EBADF (Bad file descriptor) [pid 5530] close(20) = -1 EBADF (Bad file descriptor) [pid 5530] close(21) = -1 EBADF (Bad file descriptor) [pid 5530] close(22) = -1 EBADF (Bad file descriptor) [pid 5530] close(23) = -1 EBADF (Bad file descriptor) [pid 5530] close(24) = -1 EBADF (Bad file descriptor) [pid 5530] close(25) = -1 EBADF (Bad file descriptor) [pid 5530] close(26) = -1 EBADF (Bad file descriptor) [pid 5530] close(27) = -1 EBADF (Bad file descriptor) [pid 5530] close(28) = -1 EBADF (Bad file descriptor) [pid 5530] close(29) = -1 EBADF (Bad file descriptor) [pid 5530] exit_group(0) = ? [pid 5530] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=242, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./240/binderfs") = 0 [ 138.935310][ T5530] 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 [ 138.951755][ T5530] REISERFS (device loop0): checking transaction log (loop0) [ 138.959833][ T5530] REISERFS (device loop0): Using r5 hash to sort names [ 138.969667][ T5530] reiserfs: enabling write barrier flush mode [ 138.978131][ T5530] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./240/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./240/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./240/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./240") = 0 [pid 5039] mkdir("./241", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 243 ./strace-static-x86_64: Process 5532 attached [pid 5532] set_robust_list(0x555555e46660, 24) = 0 [pid 5532] chdir("./241") = 0 [pid 5532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5532] setpgid(0, 0) = 0 [pid 5532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5532] write(3, "1000", 4) = 4 [pid 5532] close(3) = 0 [pid 5532] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5532] memfd_create("syzkaller", 0) = 3 [pid 5532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5532] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5532] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5532] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5532] close(3) = 0 [pid 5532] mkdir("./file0", 0777) = 0 [ 139.107260][ T5532] loop0: detected capacity change from 0 to 8192 [ 139.117119][ T5532] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.130338][ T5532] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 139.139722][ T5532] REISERFS (device loop0): using ordered data mode [ 139.146259][ T5532] reiserfs: using flush barriers [pid 5532] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5532] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5532] chdir("./file0") = 0 [pid 5532] ioctl(4, LOOP_CLR_FD) = 0 [pid 5532] close(4) = 0 [pid 5532] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5532] mount(NULL, ".", 0x200000c0, 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 5532] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5532] chdir(".") = 0 [pid 5532] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5532] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5532] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5532] close(3) = 0 [pid 5532] close(4) = 0 [pid 5532] close(5) = 0 [pid 5532] close(6) = -1 EBADF (Bad file descriptor) [pid 5532] close(7) = -1 EBADF (Bad file descriptor) [pid 5532] close(8) = -1 EBADF (Bad file descriptor) [pid 5532] close(9) = -1 EBADF (Bad file descriptor) [pid 5532] close(10) = -1 EBADF (Bad file descriptor) [pid 5532] close(11) = -1 EBADF (Bad file descriptor) [pid 5532] close(12) = -1 EBADF (Bad file descriptor) [pid 5532] close(13) = -1 EBADF (Bad file descriptor) [pid 5532] close(14) = -1 EBADF (Bad file descriptor) [pid 5532] close(15) = -1 EBADF (Bad file descriptor) [pid 5532] close(16) = -1 EBADF (Bad file descriptor) [pid 5532] close(17) = -1 EBADF (Bad file descriptor) [pid 5532] close(18) = -1 EBADF (Bad file descriptor) [pid 5532] close(19) = -1 EBADF (Bad file descriptor) [pid 5532] close(20) = -1 EBADF (Bad file descriptor) [pid 5532] close(21) = -1 EBADF (Bad file descriptor) [pid 5532] close(22) = -1 EBADF (Bad file descriptor) [pid 5532] close(23) = -1 EBADF (Bad file descriptor) [pid 5532] close(24) = -1 EBADF (Bad file descriptor) [pid 5532] close(25) = -1 EBADF (Bad file descriptor) [pid 5532] close(26) = -1 EBADF (Bad file descriptor) [pid 5532] close(27) = -1 EBADF (Bad file descriptor) [pid 5532] close(28) = -1 EBADF (Bad file descriptor) [pid 5532] close(29) = -1 EBADF (Bad file descriptor) [pid 5532] exit_group(0) = ? [pid 5532] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=243, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./241/binderfs") = 0 [ 139.152360][ T5532] 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 [ 139.168898][ T5532] REISERFS (device loop0): checking transaction log (loop0) [ 139.176987][ T5532] REISERFS (device loop0): Using r5 hash to sort names [ 139.186531][ T5532] reiserfs: enabling write barrier flush mode [ 139.195199][ T5532] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./241/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./241/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./241/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./241") = 0 [pid 5039] mkdir("./242", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 244 ./strace-static-x86_64: Process 5534 attached [pid 5534] set_robust_list(0x555555e46660, 24) = 0 [pid 5534] chdir("./242") = 0 [pid 5534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5534] setpgid(0, 0) = 0 [pid 5534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5534] write(3, "1000", 4) = 4 [pid 5534] close(3) = 0 [pid 5534] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5534] memfd_create("syzkaller", 0) = 3 [pid 5534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5534] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5534] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5534] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5534] close(3) = 0 [pid 5534] mkdir("./file0", 0777) = 0 [ 139.339172][ T5534] loop0: detected capacity change from 0 to 8192 [ 139.348615][ T5534] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.361613][ T5534] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 139.370892][ T5534] REISERFS (device loop0): using ordered data mode [ 139.377420][ T5534] reiserfs: using flush barriers [pid 5534] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5534] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5534] chdir("./file0") = 0 [pid 5534] ioctl(4, LOOP_CLR_FD) = 0 [pid 5534] close(4) = 0 [pid 5534] mkdir(".", 0777) = -1 EEXIST (File exists) [ 139.383550][ T5534] 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 [ 139.400132][ T5534] REISERFS (device loop0): checking transaction log (loop0) [ 139.408205][ T5534] REISERFS (device loop0): Using r5 hash to sort names [ 139.426297][ T5534] reiserfs: enabling write barrier flush mode [pid 5534] mount(NULL, ".", 0x200000c0, 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 5534] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5534] chdir(".") = 0 [pid 5534] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5534] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5534] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5534] close(3) = 0 [pid 5534] close(4) = 0 [pid 5534] close(5) = 0 [pid 5534] close(6) = -1 EBADF (Bad file descriptor) [pid 5534] close(7) = -1 EBADF (Bad file descriptor) [pid 5534] close(8) = -1 EBADF (Bad file descriptor) [pid 5534] close(9) = -1 EBADF (Bad file descriptor) [pid 5534] close(10) = -1 EBADF (Bad file descriptor) [pid 5534] close(11) = -1 EBADF (Bad file descriptor) [pid 5534] close(12) = -1 EBADF (Bad file descriptor) [pid 5534] close(13) = -1 EBADF (Bad file descriptor) [pid 5534] close(14) = -1 EBADF (Bad file descriptor) [pid 5534] close(15) = -1 EBADF (Bad file descriptor) [pid 5534] close(16) = -1 EBADF (Bad file descriptor) [pid 5534] close(17) = -1 EBADF (Bad file descriptor) [pid 5534] close(18) = -1 EBADF (Bad file descriptor) [pid 5534] close(19) = -1 EBADF (Bad file descriptor) [pid 5534] close(20) = -1 EBADF (Bad file descriptor) [pid 5534] close(21) = -1 EBADF (Bad file descriptor) [pid 5534] close(22) = -1 EBADF (Bad file descriptor) [pid 5534] close(23) = -1 EBADF (Bad file descriptor) [pid 5534] close(24) = -1 EBADF (Bad file descriptor) [pid 5534] close(25) = -1 EBADF (Bad file descriptor) [pid 5534] close(26) = -1 EBADF (Bad file descriptor) [pid 5534] close(27) = -1 EBADF (Bad file descriptor) [pid 5534] close(28) = -1 EBADF (Bad file descriptor) [pid 5534] close(29) = -1 EBADF (Bad file descriptor) [pid 5534] exit_group(0) = ? [pid 5534] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=244, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./242/binderfs") = 0 [ 139.434391][ T5534] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./242/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./242/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./242/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./242") = 0 [pid 5039] mkdir("./243", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 245 ./strace-static-x86_64: Process 5536 attached [pid 5536] set_robust_list(0x555555e46660, 24) = 0 [pid 5536] chdir("./243") = 0 [pid 5536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5536] setpgid(0, 0) = 0 [pid 5536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5536] write(3, "1000", 4) = 4 [pid 5536] close(3) = 0 [pid 5536] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5536] memfd_create("syzkaller", 0) = 3 [pid 5536] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5536] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5536] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5536] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5536] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5536] close(3) = 0 [pid 5536] mkdir("./file0", 0777) = 0 [ 139.570887][ T5536] loop0: detected capacity change from 0 to 8192 [ 139.581018][ T5536] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.594084][ T5536] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 139.603367][ T5536] REISERFS (device loop0): using ordered data mode [ 139.609921][ T5536] reiserfs: using flush barriers [pid 5536] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5536] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5536] chdir("./file0") = 0 [pid 5536] ioctl(4, LOOP_CLR_FD) = 0 [pid 5536] close(4) = 0 [pid 5536] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5536] mount(NULL, ".", 0x200000c0, 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 5536] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5536] chdir(".") = 0 [pid 5536] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5536] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5536] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5536] close(3) = 0 [pid 5536] close(4) = 0 [pid 5536] close(5) = 0 [pid 5536] close(6) = -1 EBADF (Bad file descriptor) [pid 5536] close(7) = -1 EBADF (Bad file descriptor) [pid 5536] close(8) = -1 EBADF (Bad file descriptor) [pid 5536] close(9) = -1 EBADF (Bad file descriptor) [pid 5536] close(10) = -1 EBADF (Bad file descriptor) [pid 5536] close(11) = -1 EBADF (Bad file descriptor) [pid 5536] close(12) = -1 EBADF (Bad file descriptor) [pid 5536] close(13) = -1 EBADF (Bad file descriptor) [pid 5536] close(14) = -1 EBADF (Bad file descriptor) [pid 5536] close(15) = -1 EBADF (Bad file descriptor) [pid 5536] close(16) = -1 EBADF (Bad file descriptor) [pid 5536] close(17) = -1 EBADF (Bad file descriptor) [pid 5536] close(18) = -1 EBADF (Bad file descriptor) [pid 5536] close(19) = -1 EBADF (Bad file descriptor) [pid 5536] close(20) = -1 EBADF (Bad file descriptor) [pid 5536] close(21) = -1 EBADF (Bad file descriptor) [pid 5536] close(22) = -1 EBADF (Bad file descriptor) [pid 5536] close(23) = -1 EBADF (Bad file descriptor) [pid 5536] close(24) = -1 EBADF (Bad file descriptor) [pid 5536] close(25) = -1 EBADF (Bad file descriptor) [pid 5536] close(26) = -1 EBADF (Bad file descriptor) [pid 5536] close(27) = -1 EBADF (Bad file descriptor) [pid 5536] close(28) = -1 EBADF (Bad file descriptor) [pid 5536] close(29) = -1 EBADF (Bad file descriptor) [pid 5536] exit_group(0) = ? [pid 5536] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=245, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./243/binderfs") = 0 [ 139.615977][ T5536] 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 [ 139.632530][ T5536] REISERFS (device loop0): checking transaction log (loop0) [ 139.640750][ T5536] REISERFS (device loop0): Using r5 hash to sort names [ 139.650685][ T5536] reiserfs: enabling write barrier flush mode [ 139.659324][ T5536] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./243/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./243/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./243/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./243") = 0 [pid 5039] mkdir("./244", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5538 attached [pid 5538] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 246 [pid 5538] <... set_robust_list resumed>) = 0 [pid 5538] chdir("./244") = 0 [pid 5538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5538] setpgid(0, 0) = 0 [pid 5538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5538] write(3, "1000", 4) = 4 [pid 5538] close(3) = 0 [pid 5538] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5538] memfd_create("syzkaller", 0) = 3 [pid 5538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5538] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5538] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5538] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5538] close(3) = 0 [pid 5538] mkdir("./file0", 0777) = 0 [ 139.799231][ T5538] loop0: detected capacity change from 0 to 8192 [ 139.809627][ T5538] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.822917][ T5538] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 139.832378][ T5538] REISERFS (device loop0): using ordered data mode [ 139.839077][ T5538] reiserfs: using flush barriers [pid 5538] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5538] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5538] chdir("./file0") = 0 [pid 5538] ioctl(4, LOOP_CLR_FD) = 0 [pid 5538] close(4) = 0 [pid 5538] mkdir(".", 0777) = -1 EEXIST (File exists) [ 139.845297][ T5538] 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 [ 139.862020][ T5538] REISERFS (device loop0): checking transaction log (loop0) [ 139.870491][ T5538] REISERFS (device loop0): Using r5 hash to sort names [ 139.887199][ T5538] reiserfs: enabling write barrier flush mode [pid 5538] mount(NULL, ".", 0x200000c0, 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 5538] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5538] chdir(".") = 0 [pid 5538] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5538] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5538] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5538] close(3) = 0 [pid 5538] close(4) = 0 [pid 5538] close(5) = 0 [pid 5538] close(6) = -1 EBADF (Bad file descriptor) [pid 5538] close(7) = -1 EBADF (Bad file descriptor) [pid 5538] close(8) = -1 EBADF (Bad file descriptor) [pid 5538] close(9) = -1 EBADF (Bad file descriptor) [pid 5538] close(10) = -1 EBADF (Bad file descriptor) [pid 5538] close(11) = -1 EBADF (Bad file descriptor) [pid 5538] close(12) = -1 EBADF (Bad file descriptor) [pid 5538] close(13) = -1 EBADF (Bad file descriptor) [pid 5538] close(14) = -1 EBADF (Bad file descriptor) [pid 5538] close(15) = -1 EBADF (Bad file descriptor) [pid 5538] close(16) = -1 EBADF (Bad file descriptor) [pid 5538] close(17) = -1 EBADF (Bad file descriptor) [pid 5538] close(18) = -1 EBADF (Bad file descriptor) [pid 5538] close(19) = -1 EBADF (Bad file descriptor) [pid 5538] close(20) = -1 EBADF (Bad file descriptor) [pid 5538] close(21) = -1 EBADF (Bad file descriptor) [pid 5538] close(22) = -1 EBADF (Bad file descriptor) [pid 5538] close(23) = -1 EBADF (Bad file descriptor) [pid 5538] close(24) = -1 EBADF (Bad file descriptor) [pid 5538] close(25) = -1 EBADF (Bad file descriptor) [pid 5538] close(26) = -1 EBADF (Bad file descriptor) [pid 5538] close(27) = -1 EBADF (Bad file descriptor) [pid 5538] close(28) = -1 EBADF (Bad file descriptor) [pid 5538] close(29) = -1 EBADF (Bad file descriptor) [pid 5538] exit_group(0) = ? [pid 5538] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=246, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./244", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./244/binderfs") = 0 [ 139.895646][ T5538] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./244/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./244/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./244/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./244") = 0 [pid 5039] mkdir("./245", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 247 ./strace-static-x86_64: Process 5540 attached [pid 5540] set_robust_list(0x555555e46660, 24) = 0 [pid 5540] chdir("./245") = 0 [pid 5540] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5540] setpgid(0, 0) = 0 [pid 5540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5540] write(3, "1000", 4) = 4 [pid 5540] close(3) = 0 [pid 5540] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5540] memfd_create("syzkaller", 0) = 3 [pid 5540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5540] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5540] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5540] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5540] close(3) = 0 [pid 5540] mkdir("./file0", 0777) = 0 [ 140.013442][ T5540] loop0: detected capacity change from 0 to 8192 [ 140.022656][ T5540] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.035655][ T5540] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 140.044971][ T5540] REISERFS (device loop0): using ordered data mode [ 140.051483][ T5540] reiserfs: using flush barriers [pid 5540] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5540] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5540] chdir("./file0") = 0 [pid 5540] ioctl(4, LOOP_CLR_FD) = 0 [pid 5540] close(4) = 0 [pid 5540] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5540] mount(NULL, ".", 0x200000c0, 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 5540] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5540] chdir(".") = 0 [pid 5540] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5540] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5540] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5540] close(3) = 0 [pid 5540] close(4) = 0 [pid 5540] close(5) = 0 [pid 5540] close(6) = -1 EBADF (Bad file descriptor) [pid 5540] close(7) = -1 EBADF (Bad file descriptor) [pid 5540] close(8) = -1 EBADF (Bad file descriptor) [pid 5540] close(9) = -1 EBADF (Bad file descriptor) [pid 5540] close(10) = -1 EBADF (Bad file descriptor) [pid 5540] close(11) = -1 EBADF (Bad file descriptor) [pid 5540] close(12) = -1 EBADF (Bad file descriptor) [pid 5540] close(13) = -1 EBADF (Bad file descriptor) [pid 5540] close(14) = -1 EBADF (Bad file descriptor) [pid 5540] close(15) = -1 EBADF (Bad file descriptor) [pid 5540] close(16) = -1 EBADF (Bad file descriptor) [pid 5540] close(17) = -1 EBADF (Bad file descriptor) [pid 5540] close(18) = -1 EBADF (Bad file descriptor) [pid 5540] close(19) = -1 EBADF (Bad file descriptor) [pid 5540] close(20) = -1 EBADF (Bad file descriptor) [pid 5540] close(21) = -1 EBADF (Bad file descriptor) [pid 5540] close(22) = -1 EBADF (Bad file descriptor) [pid 5540] close(23) = -1 EBADF (Bad file descriptor) [pid 5540] close(24) = -1 EBADF (Bad file descriptor) [pid 5540] close(25) = -1 EBADF (Bad file descriptor) [pid 5540] close(26) = -1 EBADF (Bad file descriptor) [pid 5540] close(27) = -1 EBADF (Bad file descriptor) [pid 5540] close(28) = -1 EBADF (Bad file descriptor) [pid 5540] close(29) = -1 EBADF (Bad file descriptor) [pid 5540] exit_group(0) = ? [pid 5540] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=247, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./245/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./245/binderfs") = 0 [ 140.057676][ T5540] 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 [ 140.074196][ T5540] REISERFS (device loop0): checking transaction log (loop0) [ 140.082470][ T5540] REISERFS (device loop0): Using r5 hash to sort names [ 140.091633][ T5540] reiserfs: enabling write barrier flush mode [ 140.100144][ T5540] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./245/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./245/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./245/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./245") = 0 [pid 5039] mkdir("./246", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5542 attached [pid 5542] set_robust_list(0x555555e46660, 24) = 0 [pid 5542] chdir("./246") = 0 [pid 5542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 248 [pid 5542] <... prctl resumed>) = 0 [pid 5542] setpgid(0, 0) = 0 [pid 5542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5542] write(3, "1000", 4) = 4 [pid 5542] close(3) = 0 [pid 5542] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5542] memfd_create("syzkaller", 0) = 3 [pid 5542] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5542] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5542] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5542] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5542] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5542] close(3) = 0 [pid 5542] mkdir("./file0", 0777) = 0 [ 140.216248][ T5542] loop0: detected capacity change from 0 to 8192 [ 140.225847][ T5542] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.238904][ T5542] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 140.248156][ T5542] REISERFS (device loop0): using ordered data mode [ 140.254666][ T5542] reiserfs: using flush barriers [pid 5542] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5542] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5542] chdir("./file0") = 0 [pid 5542] ioctl(4, LOOP_CLR_FD) = 0 [pid 5542] close(4) = 0 [pid 5542] mkdir(".", 0777) = -1 EEXIST (File exists) [ 140.260917][ T5542] 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 [ 140.277594][ T5542] REISERFS (device loop0): checking transaction log (loop0) [ 140.285968][ T5542] REISERFS (device loop0): Using r5 hash to sort names [ 140.300940][ T5542] reiserfs: enabling write barrier flush mode [pid 5542] mount(NULL, ".", 0x200000c0, 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 5542] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5542] chdir(".") = 0 [pid 5542] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5542] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5542] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5542] close(3) = 0 [pid 5542] close(4) = 0 [pid 5542] close(5) = 0 [pid 5542] close(6) = -1 EBADF (Bad file descriptor) [pid 5542] close(7) = -1 EBADF (Bad file descriptor) [pid 5542] close(8) = -1 EBADF (Bad file descriptor) [pid 5542] close(9) = -1 EBADF (Bad file descriptor) [pid 5542] close(10) = -1 EBADF (Bad file descriptor) [pid 5542] close(11) = -1 EBADF (Bad file descriptor) [pid 5542] close(12) = -1 EBADF (Bad file descriptor) [pid 5542] close(13) = -1 EBADF (Bad file descriptor) [pid 5542] close(14) = -1 EBADF (Bad file descriptor) [pid 5542] close(15) = -1 EBADF (Bad file descriptor) [pid 5542] close(16) = -1 EBADF (Bad file descriptor) [pid 5542] close(17) = -1 EBADF (Bad file descriptor) [pid 5542] close(18) = -1 EBADF (Bad file descriptor) [pid 5542] close(19) = -1 EBADF (Bad file descriptor) [pid 5542] close(20) = -1 EBADF (Bad file descriptor) [pid 5542] close(21) = -1 EBADF (Bad file descriptor) [pid 5542] close(22) = -1 EBADF (Bad file descriptor) [pid 5542] close(23) = -1 EBADF (Bad file descriptor) [pid 5542] close(24) = -1 EBADF (Bad file descriptor) [pid 5542] close(25) = -1 EBADF (Bad file descriptor) [pid 5542] close(26) = -1 EBADF (Bad file descriptor) [pid 5542] close(27) = -1 EBADF (Bad file descriptor) [pid 5542] close(28) = -1 EBADF (Bad file descriptor) [pid 5542] close(29) = -1 EBADF (Bad file descriptor) [pid 5542] exit_group(0) = ? [pid 5542] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=248, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./246/binderfs") = 0 [ 140.309107][ T5542] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./246/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./246/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./246/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./246") = 0 [pid 5039] mkdir("./247", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5544 attached , child_tidptr=0x555555e46650) = 249 [pid 5544] set_robust_list(0x555555e46660, 24) = 0 [pid 5544] chdir("./247") = 0 [pid 5544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5544] setpgid(0, 0) = 0 [pid 5544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5544] write(3, "1000", 4) = 4 [pid 5544] close(3) = 0 [pid 5544] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5544] memfd_create("syzkaller", 0) = 3 [pid 5544] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5544] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5544] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5544] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5544] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5544] close(3) = 0 [pid 5544] mkdir("./file0", 0777) = 0 [ 140.418982][ T5544] loop0: detected capacity change from 0 to 8192 [ 140.429356][ T5544] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.442384][ T5544] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 140.451682][ T5544] REISERFS (device loop0): using ordered data mode [ 140.458216][ T5544] reiserfs: using flush barriers [pid 5544] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5544] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5544] chdir("./file0") = 0 [pid 5544] ioctl(4, LOOP_CLR_FD) = 0 [pid 5544] close(4) = 0 [pid 5544] mkdir(".", 0777) = -1 EEXIST (File exists) [ 140.464352][ T5544] 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 [ 140.480940][ T5544] REISERFS (device loop0): checking transaction log (loop0) [ 140.488976][ T5544] REISERFS (device loop0): Using r5 hash to sort names [ 140.505038][ T5544] reiserfs: enabling write barrier flush mode [pid 5544] mount(NULL, ".", 0x200000c0, 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 5544] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5544] chdir(".") = 0 [pid 5544] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5544] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5544] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5544] close(3) = 0 [pid 5544] close(4) = 0 [pid 5544] close(5) = 0 [pid 5544] close(6) = -1 EBADF (Bad file descriptor) [pid 5544] close(7) = -1 EBADF (Bad file descriptor) [pid 5544] close(8) = -1 EBADF (Bad file descriptor) [pid 5544] close(9) = -1 EBADF (Bad file descriptor) [pid 5544] close(10) = -1 EBADF (Bad file descriptor) [pid 5544] close(11) = -1 EBADF (Bad file descriptor) [pid 5544] close(12) = -1 EBADF (Bad file descriptor) [pid 5544] close(13) = -1 EBADF (Bad file descriptor) [pid 5544] close(14) = -1 EBADF (Bad file descriptor) [pid 5544] close(15) = -1 EBADF (Bad file descriptor) [pid 5544] close(16) = -1 EBADF (Bad file descriptor) [pid 5544] close(17) = -1 EBADF (Bad file descriptor) [pid 5544] close(18) = -1 EBADF (Bad file descriptor) [pid 5544] close(19) = -1 EBADF (Bad file descriptor) [pid 5544] close(20) = -1 EBADF (Bad file descriptor) [pid 5544] close(21) = -1 EBADF (Bad file descriptor) [pid 5544] close(22) = -1 EBADF (Bad file descriptor) [pid 5544] close(23) = -1 EBADF (Bad file descriptor) [pid 5544] close(24) = -1 EBADF (Bad file descriptor) [pid 5544] close(25) = -1 EBADF (Bad file descriptor) [pid 5544] close(26) = -1 EBADF (Bad file descriptor) [pid 5544] close(27) = -1 EBADF (Bad file descriptor) [pid 5544] close(28) = -1 EBADF (Bad file descriptor) [pid 5544] close(29) = -1 EBADF (Bad file descriptor) [pid 5544] exit_group(0) = ? [pid 5544] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=249, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./247/binderfs") = 0 [ 140.513668][ T5544] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./247/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./247/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./247/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./247") = 0 [pid 5039] mkdir("./248", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5546 attached , child_tidptr=0x555555e46650) = 250 [pid 5546] set_robust_list(0x555555e46660, 24) = 0 [pid 5546] chdir("./248") = 0 [pid 5546] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5546] setpgid(0, 0) = 0 [pid 5546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5546] write(3, "1000", 4) = 4 [pid 5546] close(3) = 0 [pid 5546] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5546] memfd_create("syzkaller", 0) = 3 [pid 5546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5546] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5546] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5546] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5546] close(3) = 0 [pid 5546] mkdir("./file0", 0777) = 0 [ 140.643753][ T5546] loop0: detected capacity change from 0 to 8192 [ 140.653290][ T5546] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.666472][ T5546] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 140.675792][ T5546] REISERFS (device loop0): using ordered data mode [ 140.682309][ T5546] reiserfs: using flush barriers [pid 5546] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5546] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5546] chdir("./file0") = 0 [pid 5546] ioctl(4, LOOP_CLR_FD) = 0 [pid 5546] close(4) = 0 [pid 5546] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5546] mount(NULL, ".", 0x200000c0, 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 5546] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5546] chdir(".") = 0 [pid 5546] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5546] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5546] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5546] close(3) = 0 [pid 5546] close(4) = 0 [pid 5546] close(5) = 0 [pid 5546] close(6) = -1 EBADF (Bad file descriptor) [pid 5546] close(7) = -1 EBADF (Bad file descriptor) [pid 5546] close(8) = -1 EBADF (Bad file descriptor) [pid 5546] close(9) = -1 EBADF (Bad file descriptor) [pid 5546] close(10) = -1 EBADF (Bad file descriptor) [pid 5546] close(11) = -1 EBADF (Bad file descriptor) [pid 5546] close(12) = -1 EBADF (Bad file descriptor) [pid 5546] close(13) = -1 EBADF (Bad file descriptor) [pid 5546] close(14) = -1 EBADF (Bad file descriptor) [pid 5546] close(15) = -1 EBADF (Bad file descriptor) [pid 5546] close(16) = -1 EBADF (Bad file descriptor) [pid 5546] close(17) = -1 EBADF (Bad file descriptor) [pid 5546] close(18) = -1 EBADF (Bad file descriptor) [pid 5546] close(19) = -1 EBADF (Bad file descriptor) [pid 5546] close(20) = -1 EBADF (Bad file descriptor) [pid 5546] close(21) = -1 EBADF (Bad file descriptor) [pid 5546] close(22) = -1 EBADF (Bad file descriptor) [pid 5546] close(23) = -1 EBADF (Bad file descriptor) [pid 5546] close(24) = -1 EBADF (Bad file descriptor) [pid 5546] close(25) = -1 EBADF (Bad file descriptor) [pid 5546] close(26) = -1 EBADF (Bad file descriptor) [pid 5546] close(27) = -1 EBADF (Bad file descriptor) [pid 5546] close(28) = -1 EBADF (Bad file descriptor) [pid 5546] close(29) = -1 EBADF (Bad file descriptor) [pid 5546] exit_group(0) = ? [pid 5546] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=250, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./248", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./248/binderfs") = 0 [ 140.688579][ T5546] 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 [ 140.705109][ T5546] REISERFS (device loop0): checking transaction log (loop0) [ 140.713029][ T5546] REISERFS (device loop0): Using r5 hash to sort names [ 140.722242][ T5546] reiserfs: enabling write barrier flush mode [ 140.731397][ T5546] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./248/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./248/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./248/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./248") = 0 [pid 5039] mkdir("./249", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5548 attached , child_tidptr=0x555555e46650) = 251 [pid 5548] set_robust_list(0x555555e46660, 24) = 0 [pid 5548] chdir("./249") = 0 [pid 5548] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5548] setpgid(0, 0) = 0 [pid 5548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5548] write(3, "1000", 4) = 4 [pid 5548] close(3) = 0 [pid 5548] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5548] memfd_create("syzkaller", 0) = 3 [pid 5548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5548] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5548] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5548] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5548] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5548] close(3) = 0 [pid 5548] mkdir("./file0", 0777) = 0 [ 140.853336][ T5548] loop0: detected capacity change from 0 to 8192 [ 140.863555][ T5548] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.876640][ T5548] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 140.885868][ T5548] REISERFS (device loop0): using ordered data mode [ 140.892370][ T5548] reiserfs: using flush barriers [pid 5548] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5548] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5548] chdir("./file0") = 0 [pid 5548] ioctl(4, LOOP_CLR_FD) = 0 [pid 5548] close(4) = 0 [pid 5548] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5548] mount(NULL, ".", 0x200000c0, 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 5548] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5548] chdir(".") = 0 [pid 5548] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5548] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5548] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5548] close(3) = 0 [pid 5548] close(4) = 0 [pid 5548] close(5) = 0 [pid 5548] close(6) = -1 EBADF (Bad file descriptor) [pid 5548] close(7) = -1 EBADF (Bad file descriptor) [pid 5548] close(8) = -1 EBADF (Bad file descriptor) [pid 5548] close(9) = -1 EBADF (Bad file descriptor) [pid 5548] close(10) = -1 EBADF (Bad file descriptor) [pid 5548] close(11) = -1 EBADF (Bad file descriptor) [pid 5548] close(12) = -1 EBADF (Bad file descriptor) [pid 5548] close(13) = -1 EBADF (Bad file descriptor) [pid 5548] close(14) = -1 EBADF (Bad file descriptor) [pid 5548] close(15) = -1 EBADF (Bad file descriptor) [pid 5548] close(16) = -1 EBADF (Bad file descriptor) [pid 5548] close(17) = -1 EBADF (Bad file descriptor) [pid 5548] close(18) = -1 EBADF (Bad file descriptor) [pid 5548] close(19) = -1 EBADF (Bad file descriptor) [pid 5548] close(20) = -1 EBADF (Bad file descriptor) [pid 5548] close(21) = -1 EBADF (Bad file descriptor) [pid 5548] close(22) = -1 EBADF (Bad file descriptor) [pid 5548] close(23) = -1 EBADF (Bad file descriptor) [pid 5548] close(24) = -1 EBADF (Bad file descriptor) [pid 5548] close(25) = -1 EBADF (Bad file descriptor) [pid 5548] close(26) = -1 EBADF (Bad file descriptor) [pid 5548] close(27) = -1 EBADF (Bad file descriptor) [pid 5548] close(28) = -1 EBADF (Bad file descriptor) [pid 5548] close(29) = -1 EBADF (Bad file descriptor) [pid 5548] exit_group(0) = ? [pid 5548] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=251, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./249/binderfs") = 0 [ 140.898540][ T5548] 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 [ 140.915096][ T5548] REISERFS (device loop0): checking transaction log (loop0) [ 140.923194][ T5548] REISERFS (device loop0): Using r5 hash to sort names [ 140.933636][ T5548] reiserfs: enabling write barrier flush mode [ 140.941964][ T5548] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./249/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./249/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./249/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./249") = 0 [pid 5039] mkdir("./250", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5550 attached [pid 5550] set_robust_list(0x555555e46660, 24 [pid 5039] <... clone resumed>, child_tidptr=0x555555e46650) = 252 [pid 5550] <... set_robust_list resumed>) = 0 [pid 5550] chdir("./250") = 0 [pid 5550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5550] setpgid(0, 0) = 0 [pid 5550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5550] write(3, "1000", 4) = 4 [pid 5550] close(3) = 0 [pid 5550] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5550] memfd_create("syzkaller", 0) = 3 [pid 5550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5550] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5550] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5550] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5550] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5550] close(3) = 0 [pid 5550] mkdir("./file0", 0777) = 0 [ 141.080209][ T5550] loop0: detected capacity change from 0 to 8192 [ 141.089532][ T5550] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.102694][ T5550] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 141.112172][ T5550] REISERFS (device loop0): using ordered data mode [ 141.118776][ T5550] reiserfs: using flush barriers [pid 5550] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5550] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5550] chdir("./file0") = 0 [pid 5550] ioctl(4, LOOP_CLR_FD) = 0 [pid 5550] close(4) = 0 [pid 5550] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5550] mount(NULL, ".", 0x200000c0, 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 5550] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5550] chdir(".") = 0 [pid 5550] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5550] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5550] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5550] close(3) = 0 [pid 5550] close(4) = 0 [pid 5550] close(5) = 0 [pid 5550] close(6) = -1 EBADF (Bad file descriptor) [pid 5550] close(7) = -1 EBADF (Bad file descriptor) [pid 5550] close(8) = -1 EBADF (Bad file descriptor) [pid 5550] close(9) = -1 EBADF (Bad file descriptor) [pid 5550] close(10) = -1 EBADF (Bad file descriptor) [pid 5550] close(11) = -1 EBADF (Bad file descriptor) [pid 5550] close(12) = -1 EBADF (Bad file descriptor) [pid 5550] close(13) = -1 EBADF (Bad file descriptor) [pid 5550] close(14) = -1 EBADF (Bad file descriptor) [pid 5550] close(15) = -1 EBADF (Bad file descriptor) [pid 5550] close(16) = -1 EBADF (Bad file descriptor) [pid 5550] close(17) = -1 EBADF (Bad file descriptor) [pid 5550] close(18) = -1 EBADF (Bad file descriptor) [pid 5550] close(19) = -1 EBADF (Bad file descriptor) [pid 5550] close(20) = -1 EBADF (Bad file descriptor) [pid 5550] close(21) = -1 EBADF (Bad file descriptor) [pid 5550] close(22) = -1 EBADF (Bad file descriptor) [pid 5550] close(23) = -1 EBADF (Bad file descriptor) [pid 5550] close(24) = -1 EBADF (Bad file descriptor) [pid 5550] close(25) = -1 EBADF (Bad file descriptor) [pid 5550] close(26) = -1 EBADF (Bad file descriptor) [pid 5550] close(27) = -1 EBADF (Bad file descriptor) [pid 5550] close(28) = -1 EBADF (Bad file descriptor) [pid 5550] close(29) = -1 EBADF (Bad file descriptor) [pid 5550] exit_group(0) = ? [pid 5550] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=252, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./250/binderfs") = 0 [ 141.124786][ T5550] 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 [ 141.141322][ T5550] REISERFS (device loop0): checking transaction log (loop0) [ 141.149468][ T5550] REISERFS (device loop0): Using r5 hash to sort names [ 141.159155][ T5550] reiserfs: enabling write barrier flush mode [ 141.168345][ T5550] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./250/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./250/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./250/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./250") = 0 [pid 5039] mkdir("./251", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 253 ./strace-static-x86_64: Process 5552 attached [pid 5552] set_robust_list(0x555555e46660, 24) = 0 [pid 5552] chdir("./251") = 0 [pid 5552] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5552] setpgid(0, 0) = 0 [pid 5552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5552] write(3, "1000", 4) = 4 [pid 5552] close(3) = 0 [pid 5552] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5552] memfd_create("syzkaller", 0) = 3 [pid 5552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5552] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5552] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5552] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5552] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5552] close(3) = 0 [pid 5552] mkdir("./file0", 0777) = 0 [ 141.295630][ T5552] loop0: detected capacity change from 0 to 8192 [ 141.305459][ T5552] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.318574][ T5552] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 141.328028][ T5552] REISERFS (device loop0): using ordered data mode [ 141.334531][ T5552] reiserfs: using flush barriers [pid 5552] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5552] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5552] chdir("./file0") = 0 [pid 5552] ioctl(4, LOOP_CLR_FD) = 0 [pid 5552] close(4) = 0 [pid 5552] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5552] mount(NULL, ".", 0x200000c0, 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 5552] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5552] chdir(".") = 0 [pid 5552] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5552] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5552] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5552] close(3) = 0 [pid 5552] close(4) = 0 [pid 5552] close(5) = 0 [pid 5552] close(6) = -1 EBADF (Bad file descriptor) [pid 5552] close(7) = -1 EBADF (Bad file descriptor) [pid 5552] close(8) = -1 EBADF (Bad file descriptor) [pid 5552] close(9) = -1 EBADF (Bad file descriptor) [pid 5552] close(10) = -1 EBADF (Bad file descriptor) [pid 5552] close(11) = -1 EBADF (Bad file descriptor) [pid 5552] close(12) = -1 EBADF (Bad file descriptor) [pid 5552] close(13) = -1 EBADF (Bad file descriptor) [pid 5552] close(14) = -1 EBADF (Bad file descriptor) [pid 5552] close(15) = -1 EBADF (Bad file descriptor) [pid 5552] close(16) = -1 EBADF (Bad file descriptor) [pid 5552] close(17) = -1 EBADF (Bad file descriptor) [pid 5552] close(18) = -1 EBADF (Bad file descriptor) [pid 5552] close(19) = -1 EBADF (Bad file descriptor) [pid 5552] close(20) = -1 EBADF (Bad file descriptor) [pid 5552] close(21) = -1 EBADF (Bad file descriptor) [pid 5552] close(22) = -1 EBADF (Bad file descriptor) [pid 5552] close(23) = -1 EBADF (Bad file descriptor) [pid 5552] close(24) = -1 EBADF (Bad file descriptor) [pid 5552] close(25) = -1 EBADF (Bad file descriptor) [pid 5552] close(26) = -1 EBADF (Bad file descriptor) [pid 5552] close(27) = -1 EBADF (Bad file descriptor) [pid 5552] close(28) = -1 EBADF (Bad file descriptor) [pid 5552] close(29) = -1 EBADF (Bad file descriptor) [pid 5552] exit_group(0) = ? [pid 5552] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=253, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./251/binderfs") = 0 [ 141.340832][ T5552] 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 [ 141.357415][ T5552] REISERFS (device loop0): checking transaction log (loop0) [ 141.365328][ T5552] REISERFS (device loop0): Using r5 hash to sort names [ 141.375151][ T5552] reiserfs: enabling write barrier flush mode [ 141.383161][ T5552] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./251/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./251/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./251/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./251") = 0 [pid 5039] mkdir("./252", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5554 attached , child_tidptr=0x555555e46650) = 254 [pid 5554] set_robust_list(0x555555e46660, 24) = 0 [pid 5554] chdir("./252") = 0 [pid 5554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5554] setpgid(0, 0) = 0 [pid 5554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5554] write(3, "1000", 4) = 4 [pid 5554] close(3) = 0 [pid 5554] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5554] memfd_create("syzkaller", 0) = 3 [pid 5554] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5554] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5554] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5554] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5554] close(3) = 0 [pid 5554] mkdir("./file0", 0777) = 0 [ 141.513812][ T5554] loop0: detected capacity change from 0 to 8192 [ 141.523567][ T5554] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.536591][ T5554] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 141.545827][ T5554] REISERFS (device loop0): using ordered data mode [ 141.552351][ T5554] reiserfs: using flush barriers [pid 5554] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5554] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5554] chdir("./file0") = 0 [pid 5554] ioctl(4, LOOP_CLR_FD) = 0 [pid 5554] close(4) = 0 [pid 5554] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5554] mount(NULL, ".", 0x200000c0, 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 5554] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5554] chdir(".") = 0 [pid 5554] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5554] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5554] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5554] close(3) = 0 [pid 5554] close(4) = 0 [pid 5554] close(5) = 0 [pid 5554] close(6) = -1 EBADF (Bad file descriptor) [pid 5554] close(7) = -1 EBADF (Bad file descriptor) [pid 5554] close(8) = -1 EBADF (Bad file descriptor) [pid 5554] close(9) = -1 EBADF (Bad file descriptor) [pid 5554] close(10) = -1 EBADF (Bad file descriptor) [pid 5554] close(11) = -1 EBADF (Bad file descriptor) [pid 5554] close(12) = -1 EBADF (Bad file descriptor) [pid 5554] close(13) = -1 EBADF (Bad file descriptor) [pid 5554] close(14) = -1 EBADF (Bad file descriptor) [pid 5554] close(15) = -1 EBADF (Bad file descriptor) [pid 5554] close(16) = -1 EBADF (Bad file descriptor) [pid 5554] close(17) = -1 EBADF (Bad file descriptor) [pid 5554] close(18) = -1 EBADF (Bad file descriptor) [pid 5554] close(19) = -1 EBADF (Bad file descriptor) [pid 5554] close(20) = -1 EBADF (Bad file descriptor) [pid 5554] close(21) = -1 EBADF (Bad file descriptor) [pid 5554] close(22) = -1 EBADF (Bad file descriptor) [pid 5554] close(23) = -1 EBADF (Bad file descriptor) [pid 5554] close(24) = -1 EBADF (Bad file descriptor) [pid 5554] close(25) = -1 EBADF (Bad file descriptor) [pid 5554] close(26) = -1 EBADF (Bad file descriptor) [pid 5554] close(27) = -1 EBADF (Bad file descriptor) [pid 5554] close(28) = -1 EBADF (Bad file descriptor) [pid 5554] close(29) = -1 EBADF (Bad file descriptor) [pid 5554] exit_group(0) = ? [pid 5554] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=254, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./252/binderfs") = 0 [ 141.558536][ T5554] 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 [ 141.575171][ T5554] REISERFS (device loop0): checking transaction log (loop0) [ 141.583280][ T5554] REISERFS (device loop0): Using r5 hash to sort names [ 141.592379][ T5554] reiserfs: enabling write barrier flush mode [ 141.600831][ T5554] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./252/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./252/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./252/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./252") = 0 [pid 5039] mkdir("./253", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5556 attached , child_tidptr=0x555555e46650) = 255 [pid 5556] set_robust_list(0x555555e46660, 24) = 0 [pid 5556] chdir("./253") = 0 [pid 5556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5556] setpgid(0, 0) = 0 [pid 5556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5556] write(3, "1000", 4) = 4 [pid 5556] close(3) = 0 [pid 5556] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5556] memfd_create("syzkaller", 0) = 3 [pid 5556] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5556] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5556] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5556] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5556] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5556] close(3) = 0 [pid 5556] mkdir("./file0", 0777) = 0 [ 141.721540][ T5556] loop0: detected capacity change from 0 to 8192 [ 141.731110][ T5556] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.744244][ T5556] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 141.753567][ T5556] REISERFS (device loop0): using ordered data mode [ 141.760278][ T5556] reiserfs: using flush barriers [pid 5556] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5556] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5556] chdir("./file0") = 0 [pid 5556] ioctl(4, LOOP_CLR_FD) = 0 [pid 5556] close(4) = 0 [pid 5556] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5556] mount(NULL, ".", 0x200000c0, 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 5556] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5556] chdir(".") = 0 [pid 5556] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5556] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5556] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5556] close(3) = 0 [pid 5556] close(4) = 0 [pid 5556] close(5) = 0 [pid 5556] close(6) = -1 EBADF (Bad file descriptor) [pid 5556] close(7) = -1 EBADF (Bad file descriptor) [pid 5556] close(8) = -1 EBADF (Bad file descriptor) [pid 5556] close(9) = -1 EBADF (Bad file descriptor) [pid 5556] close(10) = -1 EBADF (Bad file descriptor) [pid 5556] close(11) = -1 EBADF (Bad file descriptor) [pid 5556] close(12) = -1 EBADF (Bad file descriptor) [pid 5556] close(13) = -1 EBADF (Bad file descriptor) [pid 5556] close(14) = -1 EBADF (Bad file descriptor) [pid 5556] close(15) = -1 EBADF (Bad file descriptor) [pid 5556] close(16) = -1 EBADF (Bad file descriptor) [pid 5556] close(17) = -1 EBADF (Bad file descriptor) [pid 5556] close(18) = -1 EBADF (Bad file descriptor) [pid 5556] close(19) = -1 EBADF (Bad file descriptor) [pid 5556] close(20) = -1 EBADF (Bad file descriptor) [pid 5556] close(21) = -1 EBADF (Bad file descriptor) [pid 5556] close(22) = -1 EBADF (Bad file descriptor) [pid 5556] close(23) = -1 EBADF (Bad file descriptor) [pid 5556] close(24) = -1 EBADF (Bad file descriptor) [pid 5556] close(25) = -1 EBADF (Bad file descriptor) [pid 5556] close(26) = -1 EBADF (Bad file descriptor) [pid 5556] close(27) = -1 EBADF (Bad file descriptor) [pid 5556] close(28) = -1 EBADF (Bad file descriptor) [pid 5556] close(29) = -1 EBADF (Bad file descriptor) [pid 5556] exit_group(0) = ? [pid 5556] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=255, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./253/binderfs") = 0 [ 141.766456][ T5556] 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 [ 141.782916][ T5556] REISERFS (device loop0): checking transaction log (loop0) [ 141.791119][ T5556] REISERFS (device loop0): Using r5 hash to sort names [ 141.801550][ T5556] reiserfs: enabling write barrier flush mode [ 141.811519][ T5556] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./253/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./253/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./253/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./253") = 0 [pid 5039] mkdir("./254", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5558 attached , child_tidptr=0x555555e46650) = 256 [pid 5558] set_robust_list(0x555555e46660, 24) = 0 [pid 5558] chdir("./254") = 0 [pid 5558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5558] setpgid(0, 0) = 0 [pid 5558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5558] write(3, "1000", 4) = 4 [pid 5558] close(3) = 0 [pid 5558] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5558] memfd_create("syzkaller", 0) = 3 [pid 5558] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5558] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5558] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5558] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5558] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5558] close(3) = 0 [pid 5558] mkdir("./file0", 0777) = 0 [ 141.928574][ T5558] loop0: detected capacity change from 0 to 8192 [ 141.938530][ T5558] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.951533][ T5558] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 141.960758][ T5558] REISERFS (device loop0): using ordered data mode [ 141.967308][ T5558] reiserfs: using flush barriers [pid 5558] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5558] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5558] chdir("./file0") = 0 [pid 5558] ioctl(4, LOOP_CLR_FD) = 0 [pid 5558] close(4) = 0 [pid 5558] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5558] mount(NULL, ".", 0x200000c0, 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 5558] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5558] chdir(".") = 0 [pid 5558] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5558] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5558] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5558] close(3) = 0 [pid 5558] close(4) = 0 [pid 5558] close(5) = 0 [pid 5558] close(6) = -1 EBADF (Bad file descriptor) [pid 5558] close(7) = -1 EBADF (Bad file descriptor) [pid 5558] close(8) = -1 EBADF (Bad file descriptor) [pid 5558] close(9) = -1 EBADF (Bad file descriptor) [pid 5558] close(10) = -1 EBADF (Bad file descriptor) [pid 5558] close(11) = -1 EBADF (Bad file descriptor) [pid 5558] close(12) = -1 EBADF (Bad file descriptor) [pid 5558] close(13) = -1 EBADF (Bad file descriptor) [pid 5558] close(14) = -1 EBADF (Bad file descriptor) [pid 5558] close(15) = -1 EBADF (Bad file descriptor) [pid 5558] close(16) = -1 EBADF (Bad file descriptor) [pid 5558] close(17) = -1 EBADF (Bad file descriptor) [pid 5558] close(18) = -1 EBADF (Bad file descriptor) [pid 5558] close(19) = -1 EBADF (Bad file descriptor) [pid 5558] close(20) = -1 EBADF (Bad file descriptor) [pid 5558] close(21) = -1 EBADF (Bad file descriptor) [pid 5558] close(22) = -1 EBADF (Bad file descriptor) [pid 5558] close(23) = -1 EBADF (Bad file descriptor) [pid 5558] close(24) = -1 EBADF (Bad file descriptor) [pid 5558] close(25) = -1 EBADF (Bad file descriptor) [pid 5558] close(26) = -1 EBADF (Bad file descriptor) [pid 5558] close(27) = -1 EBADF (Bad file descriptor) [pid 5558] close(28) = -1 EBADF (Bad file descriptor) [pid 5558] close(29) = -1 EBADF (Bad file descriptor) [pid 5558] exit_group(0) = ? [pid 5558] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=256, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./254/binderfs") = 0 [ 141.973382][ T5558] 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 [ 141.990196][ T5558] REISERFS (device loop0): checking transaction log (loop0) [ 141.998177][ T5558] REISERFS (device loop0): Using r5 hash to sort names [ 142.006994][ T5558] reiserfs: enabling write barrier flush mode [ 142.015510][ T5558] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./254/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./254/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./254/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./254") = 0 [pid 5039] mkdir("./255", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 257 ./strace-static-x86_64: Process 5560 attached [pid 5560] set_robust_list(0x555555e46660, 24) = 0 [pid 5560] chdir("./255") = 0 [pid 5560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5560] setpgid(0, 0) = 0 [pid 5560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5560] write(3, "1000", 4) = 4 [pid 5560] close(3) = 0 [pid 5560] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5560] memfd_create("syzkaller", 0) = 3 [pid 5560] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5560] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5560] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5560] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5560] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5560] close(3) = 0 [pid 5560] mkdir("./file0", 0777) = 0 [ 142.156048][ T5560] loop0: detected capacity change from 0 to 8192 [ 142.165074][ T5560] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.178084][ T5560] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 142.187330][ T5560] REISERFS (device loop0): using ordered data mode [ 142.193913][ T5560] reiserfs: using flush barriers [pid 5560] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5560] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5560] chdir("./file0") = 0 [pid 5560] ioctl(4, LOOP_CLR_FD) = 0 [pid 5560] close(4) = 0 [pid 5560] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5560] mount(NULL, ".", 0x200000c0, 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 5560] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5560] chdir(".") = 0 [pid 5560] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5560] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5560] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5560] close(3) = 0 [pid 5560] close(4) = 0 [pid 5560] close(5) = 0 [pid 5560] close(6) = -1 EBADF (Bad file descriptor) [pid 5560] close(7) = -1 EBADF (Bad file descriptor) [pid 5560] close(8) = -1 EBADF (Bad file descriptor) [pid 5560] close(9) = -1 EBADF (Bad file descriptor) [pid 5560] close(10) = -1 EBADF (Bad file descriptor) [pid 5560] close(11) = -1 EBADF (Bad file descriptor) [pid 5560] close(12) = -1 EBADF (Bad file descriptor) [pid 5560] close(13) = -1 EBADF (Bad file descriptor) [pid 5560] close(14) = -1 EBADF (Bad file descriptor) [pid 5560] close(15) = -1 EBADF (Bad file descriptor) [pid 5560] close(16) = -1 EBADF (Bad file descriptor) [pid 5560] close(17) = -1 EBADF (Bad file descriptor) [pid 5560] close(18) = -1 EBADF (Bad file descriptor) [pid 5560] close(19) = -1 EBADF (Bad file descriptor) [pid 5560] close(20) = -1 EBADF (Bad file descriptor) [pid 5560] close(21) = -1 EBADF (Bad file descriptor) [pid 5560] close(22) = -1 EBADF (Bad file descriptor) [pid 5560] close(23) = -1 EBADF (Bad file descriptor) [pid 5560] close(24) = -1 EBADF (Bad file descriptor) [pid 5560] close(25) = -1 EBADF (Bad file descriptor) [pid 5560] close(26) = -1 EBADF (Bad file descriptor) [pid 5560] close(27) = -1 EBADF (Bad file descriptor) [pid 5560] close(28) = -1 EBADF (Bad file descriptor) [pid 5560] close(29) = -1 EBADF (Bad file descriptor) [pid 5560] exit_group(0) = ? [pid 5560] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=257, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5039] umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./255/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./255/binderfs") = 0 [ 142.200188][ T5560] 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 [ 142.216863][ T5560] REISERFS (device loop0): checking transaction log (loop0) [ 142.224966][ T5560] REISERFS (device loop0): Using r5 hash to sort names [ 142.233926][ T5560] reiserfs: enabling write barrier flush mode [ 142.242042][ T5560] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./255/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./255/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./255/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./255") = 0 [pid 5039] mkdir("./256", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 258 ./strace-static-x86_64: Process 5562 attached [pid 5562] set_robust_list(0x555555e46660, 24) = 0 [pid 5562] chdir("./256") = 0 [pid 5562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5562] setpgid(0, 0) = 0 [pid 5562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5562] write(3, "1000", 4) = 4 [pid 5562] close(3) = 0 [pid 5562] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5562] memfd_create("syzkaller", 0) = 3 [pid 5562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5562] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5562] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5562] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5562] close(3) = 0 [pid 5562] mkdir("./file0", 0777) = 0 [ 142.373480][ T5562] loop0: detected capacity change from 0 to 8192 [ 142.383478][ T5562] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.397047][ T5562] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 142.406606][ T5562] REISERFS (device loop0): using ordered data mode [ 142.413275][ T5562] reiserfs: using flush barriers [pid 5562] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5562] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5562] chdir("./file0") = 0 [pid 5562] ioctl(4, LOOP_CLR_FD) = 0 [pid 5562] close(4) = 0 [pid 5562] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5562] mount(NULL, ".", 0x200000c0, 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 5562] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5562] chdir(".") = 0 [pid 5562] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5562] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5562] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5562] close(3) = 0 [pid 5562] close(4) = 0 [pid 5562] close(5) = 0 [pid 5562] close(6) = -1 EBADF (Bad file descriptor) [pid 5562] close(7) = -1 EBADF (Bad file descriptor) [pid 5562] close(8) = -1 EBADF (Bad file descriptor) [pid 5562] close(9) = -1 EBADF (Bad file descriptor) [pid 5562] close(10) = -1 EBADF (Bad file descriptor) [pid 5562] close(11) = -1 EBADF (Bad file descriptor) [pid 5562] close(12) = -1 EBADF (Bad file descriptor) [pid 5562] close(13) = -1 EBADF (Bad file descriptor) [pid 5562] close(14) = -1 EBADF (Bad file descriptor) [pid 5562] close(15) = -1 EBADF (Bad file descriptor) [pid 5562] close(16) = -1 EBADF (Bad file descriptor) [pid 5562] close(17) = -1 EBADF (Bad file descriptor) [pid 5562] close(18) = -1 EBADF (Bad file descriptor) [pid 5562] close(19) = -1 EBADF (Bad file descriptor) [pid 5562] close(20) = -1 EBADF (Bad file descriptor) [pid 5562] close(21) = -1 EBADF (Bad file descriptor) [pid 5562] close(22) = -1 EBADF (Bad file descriptor) [pid 5562] close(23) = -1 EBADF (Bad file descriptor) [pid 5562] close(24) = -1 EBADF (Bad file descriptor) [pid 5562] close(25) = -1 EBADF (Bad file descriptor) [pid 5562] close(26) = -1 EBADF (Bad file descriptor) [pid 5562] close(27) = -1 EBADF (Bad file descriptor) [pid 5562] close(28) = -1 EBADF (Bad file descriptor) [pid 5562] close(29) = -1 EBADF (Bad file descriptor) [pid 5562] exit_group(0) = ? [pid 5562] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=258, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./256", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./256/binderfs") = 0 [ 142.419662][ T5562] 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 [ 142.436528][ T5562] REISERFS (device loop0): checking transaction log (loop0) [ 142.444643][ T5562] REISERFS (device loop0): Using r5 hash to sort names [ 142.455360][ T5562] reiserfs: enabling write barrier flush mode [ 142.464091][ T5562] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./256/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./256/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./256/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./256") = 0 [pid 5039] mkdir("./257", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 259 ./strace-static-x86_64: Process 5564 attached [pid 5564] set_robust_list(0x555555e46660, 24) = 0 [pid 5564] chdir("./257") = 0 [pid 5564] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5564] setpgid(0, 0) = 0 [pid 5564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5564] write(3, "1000", 4) = 4 [pid 5564] close(3) = 0 [pid 5564] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5564] memfd_create("syzkaller", 0) = 3 [pid 5564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5564] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5564] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5564] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5564] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5564] close(3) = 0 [pid 5564] mkdir("./file0", 0777) = 0 [ 142.606588][ T5564] loop0: detected capacity change from 0 to 8192 [ 142.616247][ T5564] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.629219][ T5564] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 142.638461][ T5564] REISERFS (device loop0): using ordered data mode [ 142.645014][ T5564] reiserfs: using flush barriers [pid 5564] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5564] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5564] chdir("./file0") = 0 [pid 5564] ioctl(4, LOOP_CLR_FD) = 0 [pid 5564] close(4) = 0 [pid 5564] mkdir(".", 0777) = -1 EEXIST (File exists) [pid 5564] mount(NULL, ".", 0x200000c0, 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 5564] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5564] chdir(".") = 0 [pid 5564] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5564] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5564] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5564] close(3) = 0 [pid 5564] close(4) = 0 [pid 5564] close(5) = 0 [pid 5564] close(6) = -1 EBADF (Bad file descriptor) [pid 5564] close(7) = -1 EBADF (Bad file descriptor) [pid 5564] close(8) = -1 EBADF (Bad file descriptor) [pid 5564] close(9) = -1 EBADF (Bad file descriptor) [pid 5564] close(10) = -1 EBADF (Bad file descriptor) [pid 5564] close(11) = -1 EBADF (Bad file descriptor) [pid 5564] close(12) = -1 EBADF (Bad file descriptor) [pid 5564] close(13) = -1 EBADF (Bad file descriptor) [pid 5564] close(14) = -1 EBADF (Bad file descriptor) [pid 5564] close(15) = -1 EBADF (Bad file descriptor) [pid 5564] close(16) = -1 EBADF (Bad file descriptor) [pid 5564] close(17) = -1 EBADF (Bad file descriptor) [pid 5564] close(18) = -1 EBADF (Bad file descriptor) [pid 5564] close(19) = -1 EBADF (Bad file descriptor) [pid 5564] close(20) = -1 EBADF (Bad file descriptor) [pid 5564] close(21) = -1 EBADF (Bad file descriptor) [pid 5564] close(22) = -1 EBADF (Bad file descriptor) [pid 5564] close(23) = -1 EBADF (Bad file descriptor) [pid 5564] close(24) = -1 EBADF (Bad file descriptor) [pid 5564] close(25) = -1 EBADF (Bad file descriptor) [pid 5564] close(26) = -1 EBADF (Bad file descriptor) [pid 5564] close(27) = -1 EBADF (Bad file descriptor) [pid 5564] close(28) = -1 EBADF (Bad file descriptor) [pid 5564] close(29) = -1 EBADF (Bad file descriptor) [pid 5564] exit_group(0) = ? [pid 5564] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=259, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5039] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5039] umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./257", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./257/binderfs") = 0 [ 142.651183][ T5564] 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 [ 142.667871][ T5564] REISERFS (device loop0): checking transaction log (loop0) [ 142.676043][ T5564] REISERFS (device loop0): Using r5 hash to sort names [ 142.684955][ T5564] reiserfs: enabling write barrier flush mode [ 142.693683][ T5564] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./257/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./257/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./257/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./257") = 0 [pid 5039] mkdir("./258", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e46650) = 260 ./strace-static-x86_64: Process 5566 attached [pid 5566] set_robust_list(0x555555e46660, 24) = 0 [pid 5566] chdir("./258") = 0 [pid 5566] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5566] setpgid(0, 0) = 0 [pid 5566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5566] write(3, "1000", 4) = 4 [pid 5566] close(3) = 0 [pid 5566] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5566] memfd_create("syzkaller", 0) = 3 [pid 5566] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5566] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5566] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5566] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5566] close(3) = 0 [pid 5566] mkdir("./file0", 0777) = 0 [ 142.817598][ T5566] loop0: detected capacity change from 0 to 8192 [ 142.827303][ T5566] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.840467][ T5566] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 142.850142][ T5566] REISERFS (device loop0): using ordered data mode [ 142.856758][ T5566] reiserfs: using flush barriers [pid 5566] mount("/dev/loop0", "./file0", "reiserfs", MS_RDONLY|MS_NOSUID|MS_DIRSYNC|MS_REC|MS_SILENT|MS_RELATIME|MS_STRICTATIME, "") = 0 [pid 5566] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5566] chdir("./file0") = 0 [pid 5566] ioctl(4, LOOP_CLR_FD) = 0 [pid 5566] close(4) = 0 [pid 5566] mkdir(".", 0777) = -1 EEXIST (File exists) [ 142.862929][ T5566] 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 [ 142.880420][ T5566] REISERFS (device loop0): checking transaction log (loop0) [ 142.888615][ T5566] REISERFS (device loop0): Using r5 hash to sort names [ 142.899830][ T5566] reiserfs: enabling write barrier flush mode [pid 5566] mount(NULL, ".", 0x200000c0, 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 5566] openat(AT_FDCWD, ".", O_RDONLY|O_DIRECTORY) = 4 [pid 5566] chdir(".") = 0 [pid 5566] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5566] ioctl(5, FS_IOC_GETVERSION, 0) = -1 EFAULT (Bad address) [pid 5566] mmap(0x20000000, 12288, PROT_READ, MAP_SHARED|MAP_FIXED, 5, 0) = 0x20000000 [pid 5566] close(3) = 0 [pid 5566] close(4) = 0 [pid 5566] close(5) = 0 [pid 5566] close(6) = -1 EBADF (Bad file descriptor) [pid 5566] close(7) = -1 EBADF (Bad file descriptor) [pid 5566] close(8) = -1 EBADF (Bad file descriptor) [pid 5566] close(9) = -1 EBADF (Bad file descriptor) [pid 5566] close(10) = -1 EBADF (Bad file descriptor) [pid 5566] close(11) = -1 EBADF (Bad file descriptor) [pid 5566] close(12) = -1 EBADF (Bad file descriptor) [pid 5566] close(13) = -1 EBADF (Bad file descriptor) [pid 5566] close(14) = -1 EBADF (Bad file descriptor) [pid 5566] close(15) = -1 EBADF (Bad file descriptor) [pid 5566] close(16) = -1 EBADF (Bad file descriptor) [pid 5566] close(17) = -1 EBADF (Bad file descriptor) [pid 5566] close(18) = -1 EBADF (Bad file descriptor) [pid 5566] close(19) = -1 EBADF (Bad file descriptor) [pid 5566] close(20) = -1 EBADF (Bad file descriptor) [pid 5566] close(21) = -1 EBADF (Bad file descriptor) [pid 5566] close(22) = -1 EBADF (Bad file descriptor) [pid 5566] close(23) = -1 EBADF (Bad file descriptor) [pid 5566] close(24) = -1 EBADF (Bad file descriptor) [pid 5566] close(25) = -1 EBADF (Bad file descriptor) [pid 5566] close(26) = -1 EBADF (Bad file descriptor) [pid 5566] close(27) = -1 EBADF (Bad file descriptor) [pid 5566] close(28) = -1 EBADF (Bad file descriptor) [pid 5566] close(29) = -1 EBADF (Bad file descriptor) [pid 5566] exit_group(0) = ? [pid 5566] +++ exited with 0 +++ [pid 5039] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=260, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5039] umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5039] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 4 entries */, 32768) = 112 [pid 5039] umount2("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] unlink("./258/binderfs") = 0 [ 142.910983][ T5566] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5039] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0 [pid 5039] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] newfstatat(AT_FDCWD, "./258/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5039] umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5039] openat(AT_FDCWD, "./258/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5039] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5039] getdents64(4, 0x555555e4f730 /* 2 entries */, 32768) = 48 [pid 5039] getdents64(4, 0x555555e4f730 /* 0 entries */, 32768) = 0 [pid 5039] close(4) = 0 [pid 5039] rmdir("./258/file0") = 0 [pid 5039] getdents64(3, 0x555555e476f0 /* 0 entries */, 32768) = 0 [pid 5039] close(3) = 0 [pid 5039] rmdir("./258") = 0 [pid 5039] mkdir("./259", 0777) = 0 [pid 5039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5039] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5039] close(3) = 0 [pid 5039] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5568 attached , child_tidptr=0x555555e46650) = 261 [pid 5568] set_robust_list(0x555555e46660, 24) = 0 [pid 5568] chdir("./259") = 0 [pid 5568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5568] setpgid(0, 0) = 0 [pid 5568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5568] write(3, "1000", 4) = 4 [pid 5568] close(3) = 0 [pid 5568] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5568] memfd_create("syzkaller", 0) = 3 [pid 5568] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7bfefd0000 [pid 5568] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5568] munmap(0x7f7bfefd0000, 4194304) = 0 [pid 5568] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5568] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5568] close(3) = 0 [pid 5568] mkdir("./file0", 0777) = 0