./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4282657275
<...>
forked to background, child pid 4639
no interfaces have a carrier
[ 28.804793][ T4640] 8021q: adding VLAN 0 to HW filter on device bond0
[ 28.814526][ T4640] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.71' (ECDSA) to the list of known hosts.
execve("./syz-executor4282657275", ["./syz-executor4282657275"], 0x7fff8ec404e0 /* 10 vars */) = 0
brk(NULL) = 0x555556f14000
brk(0x555556f14c40) = 0x555556f14c40
arch_prctl(ARCH_SET_FS, 0x555556f14300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor4282657275", 4096) = 28
brk(0x555556f35c40) = 0x555556f35c40
brk(0x555556f36000) = 0x555556f36000
mprotect(0x7f6808074000, 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
getpid() = 5061
mkdir("./syzkaller.CGLpoU", 0700) = 0
chmod("./syzkaller.CGLpoU", 0777) = 0
chdir("./syzkaller.CGLpoU") = 0
mkdir("./0", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5062
./strace-static-x86_64: Process 5062 attached
[pid 5062] chdir("./0") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5062] munmap(0x7f67ffbb8000, 262144) = 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
syzkaller login: [ 53.899233][ T5062] loop0: detected capacity change from 0 to 512
[ 53.909811][ T5062] =======================================================
[ 53.909811][ T5062] WARNING: The mand mount option has been deprecated and
[ 53.909811][ T5062] and is ignored by this kernel. Remove the mand
[ 53.909811][ T5062] option from the mount to silence this warning.
[ 53.909811][ T5062] =======================================================
[pid 5062] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5062] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5062, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./0/binderfs") = 0
[ 53.947206][ T5062] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 53.957887][ T5062] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 53.972046][ T5062] EXT4-fs (loop0): 1 truncate cleaned up
[ 53.983491][ T5062] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./0/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./0") = 0
mkdir("./1", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5065
./strace-static-x86_64: Process 5065 attached
[pid 5065] chdir("./1") = 0
[pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5065] setpgid(0, 0) = 0
[pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5065] write(3, "1000", 4) = 4
[pid 5065] close(3) = 0
[pid 5065] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5065] memfd_create("syzkaller", 0) = 3
[pid 5065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5065] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 54.018549][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5065] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5065] close(3) = 0
[pid 5065] mkdir("./file0", 0777) = 0
[ 54.075665][ T5065] loop0: detected capacity change from 0 to 512
[ 54.086333][ T5065] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.097107][ T5065] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.107234][ T5065] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5065] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5065] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5065] chdir("./file0") = 0
[pid 5065] ioctl(4, LOOP_CLR_FD) = 0
[pid 5065] close(4) = 0
[pid 5065] exit_group(0) = ?
[pid 5065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5065, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./1/binderfs") = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./1/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./1") = 0
mkdir("./2", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5067
./strace-static-x86_64: Process 5067 attached
[pid 5067] chdir("./2") = 0
[pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5067] setpgid(0, 0) = 0
[pid 5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5067] write(3, "1000", 4) = 4
[pid 5067] close(3) = 0
[pid 5067] symlink("/dev/binderfs", "./binderfs") = 0
[ 54.133570][ T5065] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 54.167188][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5067] memfd_create("syzkaller", 0) = 3
[pid 5067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5067] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5067] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5067] close(3) = 0
[pid 5067] mkdir("./file0", 0777) = 0
[ 54.222864][ T5067] loop0: detected capacity change from 0 to 512
[ 54.234368][ T5067] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.244781][ T5067] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.255089][ T5067] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5067] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5067] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5067] chdir("./file0") = 0
[pid 5067] ioctl(4, LOOP_CLR_FD) = 0
[pid 5067] close(4) = 0
[pid 5067] exit_group(0) = ?
[pid 5067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5067, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./2/binderfs") = 0
[ 54.263693][ T5067] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./2/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./2") = 0
mkdir("./3", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5069
./strace-static-x86_64: Process 5069 attached
[pid 5069] chdir("./3") = 0
[pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5069] setpgid(0, 0) = 0
[pid 5069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5069] write(3, "1000", 4) = 4
[pid 5069] close(3) = 0
[pid 5069] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5069] memfd_create("syzkaller", 0) = 3
[pid 5069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5069] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5069] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5069] close(3) = 0
[pid 5069] mkdir("./file0", 0777) = 0
[ 54.295908][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[ 54.336071][ T5069] loop0: detected capacity change from 0 to 512
[pid 5069] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5069] chdir("./file0") = 0
[pid 5069] ioctl(4, LOOP_CLR_FD) = 0
[pid 5069] close(4) = 0
[pid 5069] exit_group(0) = ?
[pid 5069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5069, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 54.346622][ T5069] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.357175][ T5069] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.368674][ T5069] EXT4-fs (loop0): 1 truncate cleaned up
[ 54.376692][ T5069] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./3/binderfs") = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./3/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./3") = 0
mkdir("./4", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5071
./strace-static-x86_64: Process 5071 attached
[pid 5071] chdir("./4") = 0
[pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5071] setpgid(0, 0) = 0
[pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5071] write(3, "1000", 4) = 4
[pid 5071] close(3) = 0
[pid 5071] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5071] memfd_create("syzkaller", 0) = 3
[pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5071] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 54.407378][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5071] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5071] close(3) = 0
[pid 5071] mkdir("./file0", 0777) = 0
[ 54.460581][ T5071] loop0: detected capacity change from 0 to 512
[ 54.470444][ T5071] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.481710][ T5071] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.491996][ T5071] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5071] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5071] chdir("./file0") = 0
[pid 5071] ioctl(4, LOOP_CLR_FD) = 0
[pid 5071] close(4) = 0
[pid 5071] exit_group(0) = ?
[pid 5071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5071, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./4/binderfs") = 0
[ 54.503696][ T5071] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./4/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./4") = 0
mkdir("./5", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5073
./strace-static-x86_64: Process 5073 attached
[pid 5073] chdir("./5") = 0
[pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5073] setpgid(0, 0) = 0
[pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5073] write(3, "1000", 4) = 4
[pid 5073] close(3) = 0
[pid 5073] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5073] memfd_create("syzkaller", 0) = 3
[pid 5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5073] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 54.534844][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5073] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5073] close(3) = 0
[pid 5073] mkdir("./file0", 0777) = 0
[ 54.581748][ T5073] loop0: detected capacity change from 0 to 512
[ 54.592020][ T5073] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.603112][ T5073] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.613716][ T5073] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5073] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5073] chdir("./file0") = 0
[pid 5073] ioctl(4, LOOP_CLR_FD) = 0
[pid 5073] close(4) = 0
[pid 5073] exit_group(0) = ?
[pid 5073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./5/binderfs") = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./5/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./5") = 0
mkdir("./6", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5075 attached
, child_tidptr=0x555556f145d0) = 5075
[pid 5075] chdir("./6") = 0
[pid 5075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5075] setpgid(0, 0) = 0
[pid 5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5075] write(3, "1000", 4) = 4
[pid 5075] close(3) = 0
[pid 5075] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5075] memfd_create("syzkaller", 0) = 3
[pid 5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5075] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5075] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 54.621253][ T5073] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 54.645457][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5075] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5075] close(3) = 0
[pid 5075] mkdir("./file0", 0777) = 0
[ 54.691458][ T5075] loop0: detected capacity change from 0 to 512
[ 54.702185][ T5075] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.712722][ T5075] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.722865][ T5075] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5075] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5075] chdir("./file0") = 0
[pid 5075] ioctl(4, LOOP_CLR_FD) = 0
[pid 5075] close(4) = 0
[pid 5075] exit_group(0) = ?
[pid 5075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./6/binderfs") = 0
[ 54.733780][ T5075] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./6/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./6") = 0
mkdir("./7", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5077
./strace-static-x86_64: Process 5077 attached
[pid 5077] chdir("./7") = 0
[pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5077] setpgid(0, 0) = 0
[pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5077] write(3, "1000", 4) = 4
[pid 5077] close(3) = 0
[pid 5077] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5077] memfd_create("syzkaller", 0) = 3
[pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5077] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 54.767621][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5077] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5077] close(3) = 0
[pid 5077] mkdir("./file0", 0777) = 0
[ 54.824801][ T5077] loop0: detected capacity change from 0 to 512
[ 54.835527][ T5077] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.845844][ T5077] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 54.856864][ T5077] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5077] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5077] chdir("./file0") = 0
[pid 5077] ioctl(4, LOOP_CLR_FD) = 0
[pid 5077] close(4) = 0
[pid 5077] exit_group(0) = ?
[pid 5077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./7/binderfs") = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./7/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./7") = 0
mkdir("./8", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5079
./strace-static-x86_64: Process 5079 attached
[pid 5079] chdir("./8") = 0
[pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5079] setpgid(0, 0) = 0
[pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5079] write(3, "1000", 4) = 4
[ 54.883740][ T5077] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 54.914749][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5079] close(3) = 0
[pid 5079] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5079] memfd_create("syzkaller", 0) = 3
[pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5079] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5079] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5079] close(3) = 0
[pid 5079] mkdir("./file0", 0777) = 0
[pid 5079] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5079] chdir("./file0") = 0
[pid 5079] ioctl(4, LOOP_CLR_FD) = 0
[pid 5079] close(4) = 0
[pid 5079] exit_group(0) = ?
[pid 5079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./8/binderfs") = 0
[ 54.975676][ T5079] loop0: detected capacity change from 0 to 512
[ 54.985884][ T5079] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 54.996041][ T5079] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.006759][ T5079] EXT4-fs (loop0): 1 truncate cleaned up
[ 55.013171][ T5079] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./8/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./8") = 0
mkdir("./9", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5081
./strace-static-x86_64: Process 5081 attached
[pid 5081] chdir("./9") = 0
[pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5081] setpgid(0, 0) = 0
[pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5081] write(3, "1000", 4) = 4
[pid 5081] close(3) = 0
[pid 5081] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5081] memfd_create("syzkaller", 0) = 3
[pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5081] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.041552][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5081] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5081] close(3) = 0
[pid 5081] mkdir("./file0", 0777) = 0
[ 55.087858][ T5081] loop0: detected capacity change from 0 to 512
[ 55.097930][ T5081] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.108933][ T5081] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.119554][ T5081] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5081] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5081] chdir("./file0") = 0
[pid 5081] ioctl(4, LOOP_CLR_FD) = 0
[pid 5081] close(4) = 0
[pid 5081] exit_group(0) = ?
[pid 5081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./9/binderfs") = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./9/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./9") = 0
mkdir("./10", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5084
./strace-static-x86_64: Process 5084 attached
[pid 5084] chdir("./10") = 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) = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5084] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.127518][ T5081] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.155299][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5084] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5084] close(3) = 0
[pid 5084] mkdir("./file0", 0777) = 0
[ 55.195964][ T5084] loop0: detected capacity change from 0 to 512
[ 55.201180][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 55.214645][ T5084] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.225983][ T5084] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.236786][ T5084] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5084] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./10/binderfs") = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./10/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./10") = 0
mkdir("./11", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5086
./strace-static-x86_64: Process 5086 attached
[pid 5086] chdir("./11") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5086] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.263801][ T5084] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.296321][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5086] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5086] close(3) = 0
[pid 5086] mkdir("./file0", 0777) = 0
[ 55.338595][ T5086] loop0: detected capacity change from 0 to 512
[ 55.340800][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 55.356253][ T5086] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.366508][ T5086] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.376743][ T5086] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5086] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./11/binderfs") = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./11/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./11") = 0
mkdir("./12", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5088
./strace-static-x86_64: Process 5088 attached
[pid 5088] chdir("./12") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5088] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.385218][ T5086] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.418555][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5088] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5088] close(3) = 0
[pid 5088] mkdir("./file0", 0777) = 0
[ 55.466436][ T5088] loop0: detected capacity change from 0 to 512
[ 55.477509][ T5088] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.488627][ T5088] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.499030][ T5088] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5088] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./12/binderfs") = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./12/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./12") = 0
mkdir("./13", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5090
./strace-static-x86_64: Process 5090 attached
[pid 5090] chdir("./13") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5090] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.523804][ T5088] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.556455][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5090] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5090] close(3) = 0
[pid 5090] mkdir("./file0", 0777) = 0
[ 55.605527][ T5090] loop0: detected capacity change from 0 to 512
[ 55.615989][ T5090] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.627131][ T5090] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.638025][ T5090] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5090] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./13/binderfs") = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./13/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./13") = 0
mkdir("./14", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5092
./strace-static-x86_64: Process 5092 attached
[pid 5092] chdir("./14") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5092] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.664033][ T5090] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.696724][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5092] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5092] close(3) = 0
[pid 5092] mkdir("./file0", 0777) = 0
[ 55.745920][ T5092] loop0: detected capacity change from 0 to 512
[ 55.756124][ T5092] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.767018][ T5092] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.777478][ T5092] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5092] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./14/binderfs") = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./14/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./14") = 0
mkdir("./15", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached
, child_tidptr=0x555556f145d0) = 5094
[pid 5094] chdir("./15") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5094] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.803511][ T5092] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.836022][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5094] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5094] close(3) = 0
[pid 5094] mkdir("./file0", 0777) = 0
[ 55.878693][ T5094] loop0: detected capacity change from 0 to 512
[ 55.884655][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 55.895719][ T5094] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 55.906016][ T5094] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 55.916464][ T5094] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5094] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./15/binderfs") = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./15/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./15") = 0
mkdir("./16", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5096
./strace-static-x86_64: Process 5096 attached
[pid 5096] chdir("./16") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5096] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 55.922881][ T5094] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 55.949857][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5096] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5096] close(3) = 0
[pid 5096] mkdir("./file0", 0777) = 0
[ 56.005089][ T5096] loop0: detected capacity change from 0 to 512
[ 56.016089][ T5096] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.026886][ T5096] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.036957][ T5096] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5096] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./16/binderfs") = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./16/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./16") = 0
mkdir("./17", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5098
./strace-static-x86_64: Process 5098 attached
[pid 5098] chdir("./17") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5098] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 56.063520][ T5096] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.095769][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5098] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5098] close(3) = 0
[pid 5098] mkdir("./file0", 0777) = 0
[ 56.141882][ T5098] loop0: detected capacity change from 0 to 512
[ 56.151761][ T5098] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.162061][ T5098] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.172896][ T5098] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5098] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./17/binderfs") = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./17/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./17") = 0
mkdir("./18", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5100
./strace-static-x86_64: Process 5100 attached
[pid 5100] chdir("./18") = 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) = 0x7f67ffbb8000
[ 56.181907][ T5098] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.204197][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[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"..., 262144) = 262144
[pid 5100] munmap(0x7f67ffbb8000, 262144) = 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
[ 56.257546][ T5100] loop0: detected capacity change from 0 to 512
[ 56.268158][ T5100] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.278700][ T5100] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.289019][ T5100] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5100] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./18/binderfs") = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./18/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./18") = 0
mkdir("./19", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5102
./strace-static-x86_64: Process 5102 attached
[pid 5102] chdir("./19") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5102] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 56.296521][ T5100] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.326340][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5102] close(3) = 0
[pid 5102] mkdir("./file0", 0777) = 0
[ 56.366942][ T5102] loop0: detected capacity change from 0 to 512
[ 56.376603][ T5102] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.386523][ T5102] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.397162][ T5102] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5102] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./19/binderfs") = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./19/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./19") = 0
mkdir("./20", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5104
./strace-static-x86_64: Process 5104 attached
[pid 5104] chdir("./20") = 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
[ 56.406465][ T5102] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.430138][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5104] munmap(0x7f67ffbb8000, 262144) = 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
[ 56.484771][ T5104] loop0: detected capacity change from 0 to 512
[ 56.495806][ T5104] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.506240][ T5104] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.517113][ T5104] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5104] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./20/binderfs") = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./20/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./20") = 0
mkdir("./21", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5106 attached
, child_tidptr=0x555556f145d0) = 5106
[pid 5106] chdir("./21") = 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
[ 56.553635][ T5104] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.586037][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5106] munmap(0x7f67ffbb8000, 262144) = 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
[ 56.643132][ T5106] loop0: detected capacity change from 0 to 512
[ 56.652706][ T5106] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.662969][ T5106] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.672690][ T5106] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5106] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[ 56.683501][ T5106] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
unlink("./21/binderfs") = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./21/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./21") = 0
mkdir("./22", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5108 attached
, child_tidptr=0x555556f145d0) = 5108
[pid 5108] chdir("./22") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5108] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 56.715041][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5108] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5108] close(3) = 0
[pid 5108] mkdir("./file0", 0777) = 0
[ 56.760187][ T5108] loop0: detected capacity change from 0 to 512
[ 56.770668][ T5108] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.781065][ T5108] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.792158][ T5108] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5108] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./22/binderfs") = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./22/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./22") = 0
mkdir("./23", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5110
./strace-static-x86_64: Process 5110 attached
[pid 5110] chdir("./23") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5110] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 56.804099][ T5108] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.835084][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5110] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5110] close(3) = 0
[pid 5110] mkdir("./file0", 0777) = 0
[ 56.884740][ T5110] loop0: detected capacity change from 0 to 512
[ 56.897033][ T5110] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 56.907342][ T5110] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 56.917852][ T5110] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5110] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./23/binderfs") = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./23/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./23") = 0
mkdir("./24", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5112
./strace-static-x86_64: Process 5112 attached
[pid 5112] chdir("./24") = 0
[pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5112] setpgid(0, 0) = 0
[ 56.943493][ T5110] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 56.977797][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5112] munmap(0x7f67ffbb8000, 262144) = 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
[ 57.040271][ T5112] loop0: detected capacity change from 0 to 512
[ 57.049822][ T5112] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.060969][ T5112] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.072104][ T5112] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5112] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./24/binderfs") = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./24/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./24") = 0
mkdir("./25", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5114
./strace-static-x86_64: Process 5114 attached
[pid 5114] chdir("./25") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5114] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 57.083576][ T5112] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 57.109375][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5114] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5114] close(3) = 0
[pid 5114] mkdir("./file0", 0777) = 0
[ 57.149254][ T5114] loop0: detected capacity change from 0 to 512
[ 57.159982][ T5114] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.170967][ T5114] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.181365][ T5114] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5114] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./25/binderfs") = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./25/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./25") = 0
mkdir("./26", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5116
./strace-static-x86_64: Process 5116 attached
[pid 5116] chdir("./26") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5116] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 57.193623][ T5114] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 57.225620][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5116] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5116] close(3) = 0
[pid 5116] mkdir("./file0", 0777) = 0
[ 57.266486][ T5116] loop0: detected capacity change from 0 to 512
[ 57.277344][ T5116] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.287535][ T5116] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.297961][ T5116] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5116] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./26/binderfs") = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./26/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./26") = 0
mkdir("./27", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5118
./strace-static-x86_64: Process 5118 attached
[pid 5118] chdir("./27") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5118] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 57.333867][ T5116] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 57.364467][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5118] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5118] close(3) = 0
[pid 5118] mkdir("./file0", 0777) = 0
[ 57.412090][ T5118] loop0: detected capacity change from 0 to 512
[ 57.422208][ T5118] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.432786][ T5118] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.443490][ T5118] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5118] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./27/binderfs") = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./27/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./27") = 0
mkdir("./28", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 57.453729][ T5118] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 57.476077][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5120
./strace-static-x86_64: Process 5120 attached
[pid 5120] chdir("./28") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5120] munmap(0x7f67ffbb8000, 262144) = 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
[ 57.541895][ T5120] loop0: detected capacity change from 0 to 512
[ 57.553487][ T5120] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.563705][ T5120] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.573567][ T5120] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5120] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./28/binderfs") = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./28/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./28") = 0
mkdir("./29", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5122
./strace-static-x86_64: Process 5122 attached
[pid 5122] chdir("./29") = 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
[ 57.613735][ T5120] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 57.648064][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5122] munmap(0x7f67ffbb8000, 262144) = 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
[ 57.704410][ T5122] loop0: detected capacity change from 0 to 512
[ 57.715270][ T5122] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.725569][ T5122] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.735996][ T5122] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5122] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./29/binderfs") = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./29/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./29") = 0
mkdir("./30", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5124
./strace-static-x86_64: Process 5124 attached
[pid 5124] chdir("./30") = 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) = 0x7f67ffbb8000
[ 57.743853][ T5122] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 57.766595][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[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"..., 262144) = 262144
[pid 5124] munmap(0x7f67ffbb8000, 262144) = 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
[ 57.820368][ T5124] loop0: detected capacity change from 0 to 512
[ 57.831019][ T5124] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.841594][ T5124] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.851637][ T5124] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5124] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./30/binderfs") = 0
[ 57.863685][ T5124] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./30/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./30") = 0
mkdir("./31", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5126
./strace-static-x86_64: Process 5126 attached
[pid 5126] chdir("./31") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5126] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 57.897522][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5126] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5126] close(3) = 0
[pid 5126] mkdir("./file0", 0777) = 0
[ 57.944618][ T5126] loop0: detected capacity change from 0 to 512
[ 57.954683][ T5126] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 57.965744][ T5126] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 57.975652][ T5126] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5126] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./31/binderfs") = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./31/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./31") = 0
mkdir("./32", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5128
./strace-static-x86_64: Process 5128 attached
[pid 5128] chdir("./32") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5128] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 58.003489][ T5126] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
[ 58.034837][ T5061] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
[pid 5128] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5128] close(3) = 0
[pid 5128] mkdir("./file0", 0777) = 0
[pid 5128] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./32/binderfs") = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./32/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./32") = 0
mkdir("./33", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5130
[ 58.079979][ T5128] loop0: detected capacity change from 0 to 512
[ 58.090524][ T5128] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.100954][ T5128] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.110872][ T5128] EXT4-fs (loop0): 1 truncate cleaned up
./strace-static-x86_64: Process 5130 attached
[pid 5130] chdir("./33") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5130] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5130] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./33/binderfs") = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./33/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./33") = 0
mkdir("./34", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5132
./strace-static-x86_64: Process 5132 attached
[pid 5132] chdir("./34") = 0
[pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5132] setpgid(0, 0) = 0
[pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5132] write(3, "1000", 4) = 4
[pid 5132] close(3) = 0
[pid 5132] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5132] memfd_create("syzkaller", 0) = 3
[pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5132] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 58.176982][ T5130] loop0: detected capacity change from 0 to 512
[ 58.187956][ T5130] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.198278][ T5130] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.208087][ T5130] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5132] close(3) = 0
[pid 5132] mkdir("./file0", 0777) = 0
[pid 5132] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5132] chdir("./file0") = 0
[pid 5132] ioctl(4, LOOP_CLR_FD) = 0
[pid 5132] close(4) = 0
[pid 5132] exit_group(0) = ?
[pid 5132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./34/binderfs") = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./34/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./34") = 0
mkdir("./35", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 58.252335][ T5132] loop0: detected capacity change from 0 to 512
[ 58.263044][ T5132] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.274043][ T5132] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.286112][ T5132] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5134
./strace-static-x86_64: Process 5134 attached
[pid 5134] chdir("./35") = 0
[pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5134] setpgid(0, 0) = 0
[pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5134] write(3, "1000", 4) = 4
[pid 5134] close(3) = 0
[pid 5134] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5134] memfd_create("syzkaller", 0) = 3
[pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5134] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5134] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5134] close(3) = 0
[pid 5134] mkdir("./file0", 0777) = 0
[pid 5134] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5134] chdir("./file0") = 0
[pid 5134] ioctl(4, LOOP_CLR_FD) = 0
[pid 5134] close(4) = 0
[pid 5134] exit_group(0) = ?
[pid 5134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./35/binderfs") = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./35/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./35") = 0
mkdir("./36", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5136
./strace-static-x86_64: Process 5136 attached
[pid 5136] chdir("./36") = 0
[pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5136] setpgid(0, 0) = 0
[pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 58.346542][ T5134] loop0: detected capacity change from 0 to 512
[ 58.357034][ T5134] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.368127][ T5134] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.378357][ T5134] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5136] write(3, "1000", 4) = 4
[pid 5136] close(3) = 0
[pid 5136] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5136] memfd_create("syzkaller", 0) = 3
[pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5136] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5136] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5136] close(3) = 0
[pid 5136] mkdir("./file0", 0777) = 0
[pid 5136] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5136] chdir("./file0") = 0
[pid 5136] ioctl(4, LOOP_CLR_FD) = 0
[pid 5136] close(4) = 0
[pid 5136] exit_group(0) = ?
[pid 5136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./36/binderfs") = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 58.439790][ T5136] loop0: detected capacity change from 0 to 512
[ 58.449566][ T5136] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.460655][ T5136] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.471094][ T5136] EXT4-fs (loop0): 1 truncate cleaned up
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./36/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./36") = 0
mkdir("./37", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5138
./strace-static-x86_64: Process 5138 attached
[pid 5138] chdir("./37") = 0
[pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5138] setpgid(0, 0) = 0
[pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5138] write(3, "1000", 4) = 4
[pid 5138] close(3) = 0
[pid 5138] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5138] memfd_create("syzkaller", 0) = 3
[pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5138] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5138] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5138] close(3) = 0
[pid 5138] mkdir("./file0", 0777) = 0
[pid 5138] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5138] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5138] chdir("./file0") = 0
[pid 5138] ioctl(4, LOOP_CLR_FD) = 0
[pid 5138] close(4) = 0
[pid 5138] exit_group(0) = ?
[pid 5138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./37/binderfs") = 0
[ 58.543193][ T5138] loop0: detected capacity change from 0 to 512
[ 58.554577][ T5138] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.565907][ T5138] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.576091][ T5138] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./37/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./37") = 0
mkdir("./38", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5140
./strace-static-x86_64: Process 5140 attached
[pid 5140] chdir("./38") = 0
[pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5140] setpgid(0, 0) = 0
[pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5140] write(3, "1000", 4) = 4
[pid 5140] close(3) = 0
[pid 5140] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5140] memfd_create("syzkaller", 0) = 3
[pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5140] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5140] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5140] close(3) = 0
[pid 5140] mkdir("./file0", 0777) = 0
[pid 5140] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5140] chdir("./file0") = 0
[pid 5140] ioctl(4, LOOP_CLR_FD) = 0
[pid 5140] close(4) = 0
[pid 5140] exit_group(0) = ?
[pid 5140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./38/binderfs") = 0
umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./38/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
[ 58.672857][ T5140] loop0: detected capacity change from 0 to 512
[ 58.693195][ T5140] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.704117][ T5140] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.714831][ T5140] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
rmdir("./38") = 0
mkdir("./39", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5142
./strace-static-x86_64: Process 5142 attached
[pid 5142] chdir("./39") = 0
[pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5142] setpgid(0, 0) = 0
[pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5142] write(3, "1000", 4) = 4
[pid 5142] close(3) = 0
[pid 5142] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5142] memfd_create("syzkaller", 0) = 3
[pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5142] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5142] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5142] close(3) = 0
[pid 5142] mkdir("./file0", 0777) = 0
[pid 5142] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5142] chdir("./file0") = 0
[pid 5142] ioctl(4, LOOP_CLR_FD) = 0
[pid 5142] close(4) = 0
[pid 5142] exit_group(0) = ?
[pid 5142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./39/binderfs") = 0
umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./39/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./39") = 0
mkdir("./40", 0777) = 0
[ 58.776079][ T5142] loop0: detected capacity change from 0 to 512
[ 58.786915][ T5142] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.798052][ T5142] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.808327][ T5142] EXT4-fs (loop0): 1 truncate cleaned up
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5144
./strace-static-x86_64: Process 5144 attached
[pid 5144] chdir("./40") = 0
[pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5144] setpgid(0, 0) = 0
[pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5144] write(3, "1000", 4) = 4
[pid 5144] close(3) = 0
[pid 5144] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5144] memfd_create("syzkaller", 0) = 3
[pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5144] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5144] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5144] close(3) = 0
[pid 5144] mkdir("./file0", 0777) = 0
[pid 5144] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5144] chdir("./file0") = 0
[pid 5144] ioctl(4, LOOP_CLR_FD) = 0
[pid 5144] close(4) = 0
[pid 5144] exit_group(0) = ?
[pid 5144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./40/binderfs") = 0
umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./40/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./40") = 0
mkdir("./41", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5146
[ 58.884393][ T5144] loop0: detected capacity change from 0 to 512
[ 58.894844][ T5144] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 58.905252][ T5144] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 58.917566][ T5144] EXT4-fs (loop0): 1 truncate cleaned up
./strace-static-x86_64: Process 5146 attached
[pid 5146] chdir("./41") = 0
[pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5146] setpgid(0, 0) = 0
[pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5146] write(3, "1000", 4) = 4
[pid 5146] close(3) = 0
[pid 5146] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5146] memfd_create("syzkaller", 0) = 3
[pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5146] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5146] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5146] close(3) = 0
[pid 5146] mkdir("./file0", 0777) = 0
[pid 5146] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5146] chdir("./file0") = 0
[pid 5146] ioctl(4, LOOP_CLR_FD) = 0
[pid 5146] close(4) = 0
[pid 5146] exit_group(0) = ?
[pid 5146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./41/binderfs") = 0
umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./41/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./41") = 0
mkdir("./42", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5148
./strace-static-x86_64: Process 5148 attached
[pid 5148] chdir("./42") = 0
[pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5148] setpgid(0, 0) = 0
[pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5148] write(3, "1000", 4) = 4
[ 58.992154][ T5146] loop0: detected capacity change from 0 to 512
[ 59.003487][ T5146] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.014435][ T5146] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.025185][ T5146] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5148] close(3) = 0
[pid 5148] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5148] memfd_create("syzkaller", 0) = 3
[pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5148] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5148] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5148] close(3) = 0
[pid 5148] mkdir("./file0", 0777) = 0
[pid 5148] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5148] chdir("./file0") = 0
[pid 5148] ioctl(4, LOOP_CLR_FD) = 0
[ 59.083024][ T5148] loop0: detected capacity change from 0 to 512
[ 59.094942][ T5148] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.106622][ T5148] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.116542][ T5148] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5148] close(4) = 0
[pid 5148] exit_group(0) = ?
[pid 5148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./42/binderfs") = 0
umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./42/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./42") = 0
mkdir("./43", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5150
./strace-static-x86_64: Process 5150 attached
[pid 5150] chdir("./43") = 0
[pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5150] setpgid(0, 0) = 0
[pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5150] write(3, "1000", 4) = 4
[pid 5150] close(3) = 0
[pid 5150] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5150] memfd_create("syzkaller", 0) = 3
[pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5150] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5150] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5150] close(3) = 0
[pid 5150] mkdir("./file0", 0777) = 0
[pid 5150] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5150] chdir("./file0") = 0
[pid 5150] ioctl(4, LOOP_CLR_FD) = 0
[pid 5150] close(4) = 0
[pid 5150] exit_group(0) = ?
[pid 5150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./43/binderfs") = 0
umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./43/file0") = 0
[ 59.208932][ T5150] loop0: detected capacity change from 0 to 512
[ 59.219616][ T5150] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.230784][ T5150] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.241622][ T5150] EXT4-fs (loop0): 1 truncate cleaned up
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./43") = 0
mkdir("./44", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5152
./strace-static-x86_64: Process 5152 attached
[pid 5152] chdir("./44") = 0
[pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5152] setpgid(0, 0) = 0
[pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5152] write(3, "1000", 4) = 4
[pid 5152] close(3) = 0
[pid 5152] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5152] memfd_create("syzkaller", 0) = 3
[pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5152] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5152] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5152] close(3) = 0
[pid 5152] mkdir("./file0", 0777) = 0
[pid 5152] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5152] chdir("./file0") = 0
[pid 5152] ioctl(4, LOOP_CLR_FD) = 0
[pid 5152] close(4) = 0
[pid 5152] exit_group(0) = ?
[pid 5152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./44/binderfs") = 0
umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./44/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
[ 59.331198][ T5152] loop0: detected capacity change from 0 to 512
[ 59.351640][ T5152] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.361920][ T5152] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.373286][ T5152] EXT4-fs (loop0): 1 truncate cleaned up
rmdir("./44") = 0
mkdir("./45", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5154
./strace-static-x86_64: Process 5154 attached
[pid 5154] chdir("./45") = 0
[pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5154] setpgid(0, 0) = 0
[pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5154] write(3, "1000", 4) = 4
[pid 5154] close(3) = 0
[pid 5154] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5154] memfd_create("syzkaller", 0) = 3
[pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5154] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5154] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5154] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5154] close(3) = 0
[pid 5154] mkdir("./file0", 0777) = 0
[pid 5154] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5154] chdir("./file0") = 0
[pid 5154] ioctl(4, LOOP_CLR_FD) = 0
[pid 5154] close(4) = 0
[pid 5154] exit_group(0) = ?
[pid 5154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./45/binderfs") = 0
[ 59.452423][ T5154] loop0: detected capacity change from 0 to 512
[ 59.463848][ T5154] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.474069][ T5154] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.484602][ T5154] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./45/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./45") = 0
mkdir("./46", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5156
./strace-static-x86_64: Process 5156 attached
[pid 5156] chdir("./46") = 0
[pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5156] setpgid(0, 0) = 0
[pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5156] write(3, "1000", 4) = 4
[pid 5156] close(3) = 0
[pid 5156] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5156] memfd_create("syzkaller", 0) = 3
[pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5156] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5156] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5156] close(3) = 0
[pid 5156] mkdir("./file0", 0777) = 0
[pid 5156] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5156] chdir("./file0") = 0
[pid 5156] ioctl(4, LOOP_CLR_FD) = 0
[pid 5156] close(4) = 0
[pid 5156] exit_group(0) = ?
[pid 5156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./46/binderfs") = 0
umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./46/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./46/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./46") = 0
mkdir("./47", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5158 attached
, child_tidptr=0x555556f145d0) = 5158
[ 59.572238][ T5156] loop0: detected capacity change from 0 to 512
[ 59.582622][ T5156] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.593681][ T5156] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.604202][ T5156] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5158] chdir("./47") = 0
[pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5158] setpgid(0, 0) = 0
[pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5158] write(3, "1000", 4) = 4
[pid 5158] close(3) = 0
[pid 5158] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5158] memfd_create("syzkaller", 0) = 3
[pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5158] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5158] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5158] close(3) = 0
[pid 5158] mkdir("./file0", 0777) = 0
[pid 5158] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5158] chdir("./file0") = 0
[pid 5158] ioctl(4, LOOP_CLR_FD) = 0
[pid 5158] close(4) = 0
[pid 5158] exit_group(0) = ?
[pid 5158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./47/binderfs") = 0
umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 59.675967][ T5158] loop0: detected capacity change from 0 to 512
[ 59.686126][ T5158] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.697048][ T5158] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.707129][ T5158] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./47/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./47") = 0
mkdir("./48", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5160
./strace-static-x86_64: Process 5160 attached
[pid 5160] chdir("./48") = 0
[pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5160] setpgid(0, 0) = 0
[pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5160] write(3, "1000", 4) = 4
[pid 5160] close(3) = 0
[pid 5160] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5160] memfd_create("syzkaller", 0) = 3
[pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5160] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5160] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5160] close(3) = 0
[pid 5160] mkdir("./file0", 0777) = 0
[pid 5160] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5160] chdir("./file0") = 0
[pid 5160] ioctl(4, LOOP_CLR_FD) = 0
[pid 5160] close(4) = 0
[pid 5160] exit_group(0) = ?
[pid 5160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./48/binderfs") = 0
umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./48/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./48/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./48") = 0
mkdir("./49", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 59.792498][ T5160] loop0: detected capacity change from 0 to 512
[ 59.802862][ T5160] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.813767][ T5160] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.824105][ T5160] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached
, child_tidptr=0x555556f145d0) = 5162
[pid 5162] chdir("./49") = 0
[pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5162] setpgid(0, 0) = 0
[pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5162] write(3, "1000", 4) = 4
[pid 5162] close(3) = 0
[pid 5162] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5162] memfd_create("syzkaller", 0) = 3
[pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5162] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5162] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5162] close(3) = 0
[pid 5162] mkdir("./file0", 0777) = 0
[pid 5162] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5162] chdir("./file0") = 0
[pid 5162] ioctl(4, LOOP_CLR_FD) = 0
[pid 5162] close(4) = 0
[pid 5162] exit_group(0) = ?
[pid 5162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./49/binderfs") = 0
umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./49/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
[ 59.901159][ T5162] loop0: detected capacity change from 0 to 512
[ 59.912338][ T5162] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 59.922968][ T5162] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 59.933446][ T5162] EXT4-fs (loop0): 1 truncate cleaned up
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./49/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./49") = 0
mkdir("./50", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5164
./strace-static-x86_64: Process 5164 attached
[pid 5164] chdir("./50") = 0
[pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5164] setpgid(0, 0) = 0
[pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5164] write(3, "1000", 4) = 4
[pid 5164] close(3) = 0
[pid 5164] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5164] memfd_create("syzkaller", 0) = 3
[pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5164] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5164] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5164] close(3) = 0
[pid 5164] mkdir("./file0", 0777) = 0
[pid 5164] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5164] chdir("./file0") = 0
[pid 5164] ioctl(4, LOOP_CLR_FD) = 0
[pid 5164] close(4) = 0
[pid 5164] exit_group(0) = ?
[pid 5164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./50/binderfs") = 0
umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./50/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./50") = 0
mkdir("./51", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5166
./strace-static-x86_64: Process 5166 attached
[pid 5166] chdir("./51") = 0
[pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5166] setpgid(0, 0) = 0
[pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 60.017568][ T5164] loop0: detected capacity change from 0 to 512
[ 60.027908][ T5164] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.038708][ T5164] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.048589][ T5164] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5166] write(3, "1000", 4) = 4
[pid 5166] close(3) = 0
[pid 5166] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5166] memfd_create("syzkaller", 0) = 3
[pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5166] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5166] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5166] close(3) = 0
[pid 5166] mkdir("./file0", 0777) = 0
[pid 5166] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5166] chdir("./file0") = 0
[pid 5166] ioctl(4, LOOP_CLR_FD) = 0
[pid 5166] close(4) = 0
[ 60.105874][ T5166] loop0: detected capacity change from 0 to 512
[ 60.115342][ T5166] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.126438][ T5166] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.136569][ T5166] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5166] exit_group(0) = ?
[pid 5166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./51/binderfs") = 0
umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./51/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./51") = 0
mkdir("./52", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5168
./strace-static-x86_64: Process 5168 attached
[pid 5168] chdir("./52") = 0
[pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5168] setpgid(0, 0) = 0
[pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5168] write(3, "1000", 4) = 4
[pid 5168] close(3) = 0
[pid 5168] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5168] memfd_create("syzkaller", 0) = 3
[pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5168] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5168] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5168] close(3) = 0
[pid 5168] mkdir("./file0", 0777) = 0
[pid 5168] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5168] chdir("./file0") = 0
[pid 5168] ioctl(4, LOOP_CLR_FD) = 0
[pid 5168] close(4) = 0
[pid 5168] exit_group(0) = ?
[pid 5168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./52/binderfs") = 0
umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./52/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./52") = 0
mkdir("./53", 0777) = 0
[ 60.228787][ T5168] loop0: detected capacity change from 0 to 512
[ 60.239476][ T5168] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.250123][ T5168] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.260597][ T5168] EXT4-fs (loop0): 1 truncate cleaned up
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5170
./strace-static-x86_64: Process 5170 attached
[pid 5170] chdir("./53") = 0
[pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5170] setpgid(0, 0) = 0
[pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5170] write(3, "1000", 4) = 4
[pid 5170] close(3) = 0
[pid 5170] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5170] memfd_create("syzkaller", 0) = 3
[pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5170] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5170] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5170] close(3) = 0
[pid 5170] mkdir("./file0", 0777) = 0
[pid 5170] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5170] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5170] chdir("./file0") = 0
[pid 5170] ioctl(4, LOOP_CLR_FD) = 0
[pid 5170] close(4) = 0
[pid 5170] exit_group(0) = ?
[pid 5170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./53/binderfs") = 0
umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 60.328164][ T5170] loop0: detected capacity change from 0 to 512
[ 60.339905][ T5170] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.350690][ T5170] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.360514][ T5170] EXT4-fs (loop0): 1 truncate cleaned up
lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./53/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./53") = 0
mkdir("./54", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5172
./strace-static-x86_64: Process 5172 attached
[pid 5172] chdir("./54") = 0
[pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5172] setpgid(0, 0) = 0
[pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5172] write(3, "1000", 4) = 4
[pid 5172] close(3) = 0
[pid 5172] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5172] memfd_create("syzkaller", 0) = 3
[pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5172] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5172] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5172] close(3) = 0
[pid 5172] mkdir("./file0", 0777) = 0
[pid 5172] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5172] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5172] chdir("./file0") = 0
[pid 5172] ioctl(4, LOOP_CLR_FD) = 0
[pid 5172] close(4) = 0
[pid 5172] exit_group(0) = ?
[pid 5172] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./54/binderfs") = 0
[ 60.433677][ T5172] loop0: detected capacity change from 0 to 512
[ 60.444821][ T5172] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.455092][ T5172] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.465718][ T5172] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./54/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./54") = 0
mkdir("./55", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5174
./strace-static-x86_64: Process 5174 attached
[pid 5174] chdir("./55") = 0
[pid 5174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5174] setpgid(0, 0) = 0
[pid 5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5174] write(3, "1000", 4) = 4
[pid 5174] close(3) = 0
[pid 5174] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5174] memfd_create("syzkaller", 0) = 3
[pid 5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5174] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5174] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5174] close(3) = 0
[pid 5174] mkdir("./file0", 0777) = 0
[pid 5174] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5174] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5174] chdir("./file0") = 0
[pid 5174] ioctl(4, LOOP_CLR_FD) = 0
[pid 5174] close(4) = 0
[pid 5174] exit_group(0) = ?
[pid 5174] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./55/binderfs") = 0
umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./55/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./55/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./55") = 0
mkdir("./56", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5176
./strace-static-x86_64: Process 5176 attached
[ 60.569704][ T5174] loop0: detected capacity change from 0 to 512
[ 60.579425][ T5174] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.589741][ T5174] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.599894][ T5174] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5176] chdir("./56") = 0
[pid 5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5176] setpgid(0, 0) = 0
[pid 5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5176] write(3, "1000", 4) = 4
[pid 5176] close(3) = 0
[pid 5176] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5176] memfd_create("syzkaller", 0) = 3
[pid 5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5176] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5176] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5176] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5176] close(3) = 0
[pid 5176] mkdir("./file0", 0777) = 0
[pid 5176] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5176] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5176] chdir("./file0") = 0
[pid 5176] ioctl(4, LOOP_CLR_FD) = 0
[pid 5176] close(4) = 0
[pid 5176] exit_group(0) = ?
[pid 5176] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./56/binderfs") = 0
[ 60.667721][ T5176] loop0: detected capacity change from 0 to 512
[ 60.677191][ T5176] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.687556][ T5176] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.698094][ T5176] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./56/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./56") = 0
mkdir("./57", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5179 attached
, child_tidptr=0x555556f145d0) = 5179
[pid 5179] chdir("./57") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5179] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5179] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./57/binderfs") = 0
umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./57/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./57/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./57") = 0
mkdir("./58", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 60.799447][ T5179] loop0: detected capacity change from 0 to 512
[ 60.808765][ T5179] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.819341][ T5179] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.829640][ T5179] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5181
./strace-static-x86_64: Process 5181 attached
[pid 5181] chdir("./58") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5181] munmap(0x7f67ffbb8000, 262144) = 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
[ 60.902739][ T5181] loop0: detected capacity change from 0 to 512
[ 60.913130][ T5181] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 60.924562][ T5181] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 60.934905][ T5181]
[ 60.937516][ T5181] ======================================================
[ 60.944556][ T5181] WARNING: possible circular locking dependency detected
[ 60.951589][ T5181] 6.2.0-rc3-syzkaller-00021-g7dd4b804e080 #0 Not tainted
[ 60.958619][ T5181] ------------------------------------------------------
[ 60.965640][ T5181] syz-executor428/5181 is trying to acquire lock:
[ 60.972033][ T5181] ffff88807660c5e8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x51/0x570
[ 60.980912][ T5181]
[ 60.980912][ T5181] but task is already holding lock:
[ 60.988257][ T5181] ffff88807664e6d8 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0xf85/0x15d0
[ 60.997559][ T5181]
[ 60.997559][ T5181] which lock already depends on the new lock.
[ 60.997559][ T5181]
[ 61.008041][ T5181]
[ 61.008041][ T5181] the existing dependency chain (in reverse order) is:
[ 61.017043][ T5181]
[ 61.017043][ T5181] -> #2 (&ei->i_data_sem/2){++++}-{3:3}:
[ 61.024956][ T5181] down_read+0x9c/0x450
[ 61.029671][ T5181] ext4_map_blocks+0x267/0x18d0
[ 61.035052][ T5181] ext4_getblk+0x5f6/0x7a0
[ 61.040017][ T5181] ext4_bread+0x2e/0x190
[ 61.044781][ T5181] ext4_quota_write+0x218/0x620
[ 61.050252][ T5181] write_blk+0x12e/0x220
[ 61.055020][ T5181] get_free_dqblk+0x104/0x2f0
[ 61.060211][ T5181] do_insert_tree+0x3c5/0x12d0
[ 61.065500][ T5181] do_insert_tree+0x696/0x12d0
[ 61.070812][ T5181] do_insert_tree+0x696/0x12d0
[ 61.076086][ T5181] do_insert_tree+0x696/0x12d0
[ 61.081364][ T5181] qtree_write_dquot+0x3b4/0x570
[ 61.086819][ T5181] v2_write_dquot+0x120/0x250
[ 61.092007][ T5181] dquot_acquire+0x3d1/0x6c0
[ 61.097108][ T5181] ext4_acquire_dquot+0x2b1/0x3d0
[ 61.102649][ T5181] dqget+0x67d/0x1080
[ 61.107324][ T5181] __dquot_initialize+0x560/0xbe0
[ 61.112894][ T5181] ext4_process_orphan+0x47/0x410
[ 61.118447][ T5181] ext4_orphan_cleanup+0x6fb/0x10f0
[ 61.124156][ T5181] ext4_fill_super+0x9f20/0xb220
[ 61.129604][ T5181] get_tree_bdev+0x444/0x760
[ 61.134711][ T5181] vfs_get_tree+0x8d/0x2f0
[ 61.139656][ T5181] path_mount+0x132a/0x1e20
[ 61.144677][ T5181] __x64_sys_mount+0x283/0x300
[ 61.149953][ T5181] do_syscall_64+0x39/0xb0
[ 61.154882][ T5181] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 61.161282][ T5181]
[ 61.161282][ T5181] -> #1 (&s->s_dquot.dqio_sem){++++}-{3:3}:
[ 61.169354][ T5181] down_read+0x9c/0x450
[ 61.174047][ T5181] v2_read_dquot+0x4d/0x120
[ 61.179066][ T5181] dquot_acquire+0x1b3/0x6c0
[ 61.184166][ T5181] ext4_acquire_dquot+0x2b1/0x3d0
[ 61.189711][ T5181] dqget+0x67d/0x1080
[ 61.194245][ T5181] __dquot_initialize+0x560/0xbe0
[ 61.199801][ T5181] ext4_process_orphan+0x47/0x410
[ 61.205384][ T5181] ext4_orphan_cleanup+0x6fb/0x10f0
[ 61.211088][ T5181] ext4_fill_super+0x9f20/0xb220
[ 61.216552][ T5181] get_tree_bdev+0x444/0x760
[ 61.221686][ T5181] vfs_get_tree+0x8d/0x2f0
[ 61.226633][ T5181] path_mount+0x132a/0x1e20
[ 61.231683][ T5181] __x64_sys_mount+0x283/0x300
[ 61.236961][ T5181] do_syscall_64+0x39/0xb0
[ 61.241917][ T5181] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 61.248318][ T5181]
[ 61.248318][ T5181] -> #0 (&dquot->dq_lock){+.+.}-{3:3}:
[ 61.255950][ T5181] __lock_acquire+0x2a43/0x56d0
[ 61.261318][ T5181] lock_acquire+0x1e3/0x630
[ 61.266364][ T5181] __mutex_lock+0x12f/0x1360
[ 61.271498][ T5181] dquot_commit+0x51/0x570
[ 61.276467][ T5181] ext4_write_dquot+0x25f/0x330
[ 61.281863][ T5181] ext4_mark_dquot_dirty+0x115/0x1b0
[ 61.287657][ T5181] __dquot_free_space+0x773/0xaf0
[ 61.293291][ T5181] ext4_free_blocks+0x11ca/0x2300
[ 61.298844][ T5181] ext4_ext_remove_space+0x203c/0x46e0
[ 61.304821][ T5181] ext4_ext_truncate+0x34b/0x400
[ 61.310275][ T5181] ext4_truncate+0xfea/0x15d0
[ 61.315466][ T5181] ext4_process_orphan+0x158/0x410
[ 61.321093][ T5181] ext4_orphan_cleanup+0x6fb/0x10f0
[ 61.326889][ T5181] ext4_fill_super+0x9f20/0xb220
[ 61.333650][ T5181] get_tree_bdev+0x444/0x760
[ 61.339108][ T5181] vfs_get_tree+0x8d/0x2f0
[ 61.344121][ T5181] path_mount+0x132a/0x1e20
[ 61.349135][ T5181] __x64_sys_mount+0x283/0x300
[ 61.354411][ T5181] do_syscall_64+0x39/0xb0
[ 61.359342][ T5181] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 61.365745][ T5181]
[ 61.365745][ T5181] other info that might help us debug this:
[ 61.365745][ T5181]
[ 61.375954][ T5181] Chain exists of:
[ 61.375954][ T5181] &dquot->dq_lock --> &s->s_dquot.dqio_sem --> &ei->i_data_sem/2
[ 61.375954][ T5181]
[ 61.389581][ T5181] Possible unsafe locking scenario:
[ 61.389581][ T5181]
[ 61.397012][ T5181] CPU0 CPU1
[ 61.402360][ T5181] ---- ----
[ 61.407709][ T5181] lock(&ei->i_data_sem/2);
[ 61.412292][ T5181] lock(&s->s_dquot.dqio_sem);
[ 61.419659][ T5181] lock(&ei->i_data_sem/2);
[ 61.426877][ T5181] lock(&dquot->dq_lock);
[ 61.431278][ T5181]
[ 61.431278][ T5181] *** DEADLOCK ***
[ 61.431278][ T5181]
[ 61.439403][ T5181] 4 locks held by syz-executor428/5181:
[ 61.444944][ T5181] #0: ffff8880796120e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60
[ 61.455091][ T5181] #1: ffff88807664e850 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_process_orphan+0x109/0x410
[ 61.466085][ T5181] #2: ffff88807664e6d8 (&ei->i_data_sem/2){++++}-{3:3}, at: ext4_truncate+0xf85/0x15d0
[ 61.475827][ T5181] #3: ffffffff8c975ea8 (dquot_srcu){....}-{0:0}, at: __dquot_free_space+0x1a8/0xaf0
[ 61.485410][ T5181]
[ 61.485410][ T5181] stack backtrace:
[ 61.491307][ T5181] CPU: 0 PID: 5181 Comm: syz-executor428 Not tainted 6.2.0-rc3-syzkaller-00021-g7dd4b804e080 #0
[ 61.501701][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 61.512107][ T5181] Call Trace:
[ 61.515396][ T5181]
[ 61.518325][ T5181] dump_stack_lvl+0xd1/0x138
[ 61.522949][ T5181] check_noncircular+0x25f/0x2e0
[ 61.527876][ T5181] ? print_circular_bug+0x1e0/0x1e0
[ 61.533058][ T5181] ? lock_chain_count+0x20/0x20
[ 61.537897][ T5181] ? __lockdep_reset_lock+0x1a0/0x1a0
[ 61.543294][ T5181] __lock_acquire+0x2a43/0x56d0
[ 61.548226][ T5181] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 61.554198][ T5181] ? check_path.constprop.0+0x24/0x50
[ 61.559582][ T5181] lock_acquire+0x1e3/0x630
[ 61.564082][ T5181] ? dquot_commit+0x51/0x570
[ 61.568686][ T5181] ? lock_release+0x810/0x810
[ 61.573377][ T5181] __mutex_lock+0x12f/0x1360
[ 61.577968][ T5181] ? dquot_commit+0x51/0x570
[ 61.582584][ T5181] ? dquot_commit+0x51/0x570
[ 61.587184][ T5181] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 61.593163][ T5181] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 61.598740][ T5181] dquot_commit+0x51/0x570
[ 61.603152][ T5181] ? ext4_write_dquot+0x236/0x330
[ 61.608165][ T5181] ext4_write_dquot+0x25f/0x330
[ 61.613004][ T5181] ext4_mark_dquot_dirty+0x115/0x1b0
[ 61.618274][ T5181] __dquot_free_space+0x773/0xaf0
[ 61.623292][ T5181] ? dquot_reclaim_space_nodirty+0x6a0/0x6a0
[ 61.629268][ T5181] ? ext4_free_blocks+0x16d2/0x2300
[ 61.634453][ T5181] ? lock_downgrade+0x6e0/0x6e0
[ 61.639293][ T5181] ext4_free_blocks+0x11ca/0x2300
[ 61.644328][ T5181] ? ext4_mb_new_blocks+0x50f0/0x50f0
[ 61.649704][ T5181] ext4_ext_remove_space+0x203c/0x46e0
[ 61.655179][ T5181] ? ext4_ext_index_trans_blocks+0x160/0x160
[ 61.661190][ T5181] ? ext4_es_remove_extent+0x10a/0x510
[ 61.666674][ T5181] ? ext4_es_lookup_extent+0xe00/0xe00
[ 61.672190][ T5181] ? down_write+0x157/0x220
[ 61.676682][ T5181] ext4_ext_truncate+0x34b/0x400
[ 61.681720][ T5181] ext4_truncate+0xfea/0x15d0
[ 61.686501][ T5181] ? ext4_punch_hole+0x1260/0x1260
[ 61.691626][ T5181] ? down_write_killable+0x250/0x250
[ 61.696901][ T5181] ? __brelse+0x88/0xa0
[ 61.701066][ T5181] ext4_process_orphan+0x158/0x410
[ 61.706212][ T5181] ext4_orphan_cleanup+0x6fb/0x10f0
[ 61.711425][ T5181] ? ext4_process_orphan+0x410/0x410
[ 61.716720][ T5181] ext4_fill_super+0x9f20/0xb220
[ 61.721700][ T5181] ? ext4_reconfigure+0x2a50/0x2a50
[ 61.726928][ T5181] ? snprintf+0xbf/0x100
[ 61.731166][ T5181] ? vsprintf+0x30/0x30
[ 61.735315][ T5181] ? wait_for_completion_io_timeout+0x20/0x20
[ 61.741382][ T5181] get_tree_bdev+0x444/0x760
[ 61.745968][ T5181] ? ext4_reconfigure+0x2a50/0x2a50
[ 61.751160][ T5181] vfs_get_tree+0x8d/0x2f0
[ 61.755567][ T5181] path_mount+0x132a/0x1e20
[ 61.760081][ T5181] ? kmem_cache_free+0xee/0x5c0
[ 61.764919][ T5181] ? finish_automount+0x960/0x960
[ 61.769935][ T5181] ? putname+0x102/0x140
[ 61.774187][ T5181] __x64_sys_mount+0x283/0x300
[ 61.778943][ T5181] ? copy_mnt_ns+0xb30/0xb30
[ 61.783527][ T5181] ? lockdep_hardirqs_on+0x7d/0x100
[ 61.788731][ T5181] ? _raw_spin_unlock_irq+0x2e/0x50
[ 61.793953][ T5181] ? ptrace_notify+0xfe/0x140
[ 61.798620][ T5181] do_syscall_64+0x39/0xb0
[ 61.803032][ T5181] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 61.808924][ T5181] RIP: 0033:0x7f6808006e5a
[ 61.813453][ T5181] Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[ 61.833056][ T5181] RSP: 002b:00007ffc509a2dc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
[ 61.841487][ T5181] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6808006e5a
[pid 5181] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
[ 61.849453][ T5181] RDX: 0000000020000040 RSI: 0000000020000500 RDI: 00007ffc509a2dd0
[ 61.857432][ T5181] RBP: 00007ffc509a2dd0 R08: 00007ffc509a2e10 R09: 00000000000004a6
[ 61.865392][ T5181] R10: 0000000000000047 R11: 0000000000000202 R12: 0000000000000004
[ 61.873350][ T5181] R13: 0000555556f142c0 R14: 00007ffc509a2e10 R15: 0000000000000000
[ 61.881313][ T5181]
[ 61.886043][ T5181] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./58/binderfs") = 0
umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./58/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./58") = 0
mkdir("./59", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5183
./strace-static-x86_64: Process 5183 attached
[pid 5183] chdir("./59") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5183] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5183] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./59/binderfs") = 0
umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./59/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 61.980179][ T5183] loop0: detected capacity change from 0 to 512
[ 61.989159][ T5183] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 61.999028][ T5183] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.008179][ T5183] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./59/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./59") = 0
mkdir("./60", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5185
./strace-static-x86_64: Process 5185 attached
[pid 5185] chdir("./60") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5185] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5185] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./60/binderfs") = 0
umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./60/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./60") = 0
mkdir("./61", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5187
./strace-static-x86_64: Process 5187 attached
[pid 5187] chdir("./61") = 0
[pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 62.081772][ T5185] loop0: detected capacity change from 0 to 512
[ 62.091142][ T5185] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.100720][ T5185] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.111078][ T5185] EXT4-fs (loop0): 1 truncate cleaned up
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5187] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5187] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./61/binderfs") = 0
umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./61/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 62.178600][ T5187] loop0: detected capacity change from 0 to 512
[ 62.187371][ T5187] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.197075][ T5187] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.206598][ T5187] EXT4-fs (loop0): 1 truncate cleaned up
openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./61/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./61") = 0
mkdir("./62", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5189 attached
, child_tidptr=0x555556f145d0) = 5189
[pid 5189] chdir("./62") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5189] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5189] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
[ 62.281406][ T5189] loop0: detected capacity change from 0 to 512
[ 62.290910][ T5189] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.301244][ T5189] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.310226][ T5189] EXT4-fs (loop0): 1 truncate cleaned up
unlink("./62/binderfs") = 0
umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./62/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./62/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./62") = 0
mkdir("./63", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5191
./strace-static-x86_64: Process 5191 attached
[pid 5191] chdir("./63") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5191] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5191] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./63/binderfs") = 0
umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./63/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
[ 62.398271][ T5191] loop0: detected capacity change from 0 to 512
[ 62.408319][ T5191] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.418245][ T5191] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.427157][ T5191] EXT4-fs (loop0): 1 truncate cleaned up
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./63/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./63") = 0
mkdir("./64", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5193
./strace-static-x86_64: Process 5193 attached
[pid 5193] chdir("./64") = 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) = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5193] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5193] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./64/binderfs") = 0
umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./64/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 62.499902][ T5193] loop0: detected capacity change from 0 to 512
[ 62.509382][ T5193] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.520229][ T5193] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.529626][ T5193] EXT4-fs (loop0): 1 truncate cleaned up
openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./64/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./64") = 0
mkdir("./65", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5195 attached
, child_tidptr=0x555556f145d0) = 5195
[pid 5195] chdir("./65") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5195] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5195] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./65/binderfs") = 0
umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
[ 62.598104][ T5195] loop0: detected capacity change from 0 to 512
[ 62.607276][ T5195] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.617311][ T5195] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.626079][ T5195] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./65/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./65/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./65") = 0
mkdir("./66", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5197
./strace-static-x86_64: Process 5197 attached
[pid 5197] chdir("./66") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5197] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5197] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./66/binderfs") = 0
umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./66/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./66/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./66") = 0
mkdir("./67", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5199
./strace-static-x86_64: Process 5199 attached
[pid 5199] chdir("./67") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5199] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 62.721517][ T5197] loop0: detected capacity change from 0 to 512
[ 62.730989][ T5197] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.740748][ T5197] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.750187][ T5197] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5199] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5199] close(3) = 0
[pid 5199] mkdir("./file0", 0777) = 0
[pid 5199] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./67/binderfs") = 0
umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./67/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./67") = 0
mkdir("./68", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5201
./strace-static-x86_64: Process 5201 attached
[pid 5201] chdir("./68") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5201] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 62.796917][ T5199] loop0: detected capacity change from 0 to 512
[ 62.807333][ T5199] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.817846][ T5199] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.826859][ T5199] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5201] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5201] close(3) = 0
[pid 5201] mkdir("./file0", 0777) = 0
[pid 5201] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./68/binderfs") = 0
umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./68/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./68/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./68") = 0
mkdir("./69", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5203
./strace-static-x86_64: Process 5203 attached
[pid 5203] chdir("./69") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5203] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 62.868848][ T5201] loop0: detected capacity change from 0 to 512
[ 62.878047][ T5201] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.887772][ T5201] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.897187][ T5201] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5203] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5203] close(3) = 0
[pid 5203] mkdir("./file0", 0777) = 0
[pid 5203] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./69/binderfs") = 0
umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./69/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./69") = 0
mkdir("./70", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5205
./strace-static-x86_64: Process 5205 attached
[pid 5205] chdir("./70") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5205] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 62.938054][ T5203] loop0: detected capacity change from 0 to 512
[ 62.946833][ T5203] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 62.957106][ T5203] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 62.966427][ T5203] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5205] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5205] close(3) = 0
[pid 5205] mkdir("./file0", 0777) = 0
[pid 5205] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./70/binderfs") = 0
umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./70/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./70/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./70") = 0
mkdir("./71", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5207
./strace-static-x86_64: Process 5207 attached
[pid 5207] chdir("./71") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5207] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5207] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 63.016073][ T5205] loop0: detected capacity change from 0 to 512
[ 63.025014][ T5205] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.035153][ T5205] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.043784][ T5205] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5207] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5207] close(3) = 0
[pid 5207] mkdir("./file0", 0777) = 0
[pid 5207] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./71/binderfs") = 0
umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./71/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./71") = 0
mkdir("./72", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5209
./strace-static-x86_64: Process 5209 attached
[pid 5209] chdir("./72") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[ 63.083558][ T5207] loop0: detected capacity change from 0 to 512
[ 63.092685][ T5207] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.103763][ T5207] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.112995][ T5207] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5209] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5209] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./72/binderfs") = 0
umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./72/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./72/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./72") = 0
mkdir("./73", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5211
./strace-static-x86_64: Process 5211 attached
[pid 5211] chdir("./73") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5211] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 63.166583][ T5209] loop0: detected capacity change from 0 to 512
[ 63.175739][ T5209] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.185945][ T5209] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.195609][ T5209] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5211] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5211] close(3) = 0
[pid 5211] mkdir("./file0", 0777) = 0
[pid 5211] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./73/binderfs") = 0
umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./73/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./73") = 0
mkdir("./74", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5213
./strace-static-x86_64: Process 5213 attached
[pid 5213] chdir("./74") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5213] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 63.241242][ T5211] loop0: detected capacity change from 0 to 512
[ 63.242668][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 63.257886][ T5211] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.267629][ T5211] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.276624][ T5211] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5213] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5213] close(3) = 0
[pid 5213] mkdir("./file0", 0777) = 0
[pid 5213] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./74/binderfs") = 0
umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./74/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./74/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./74") = 0
mkdir("./75", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5215 attached
, child_tidptr=0x555556f145d0) = 5215
[pid 5215] chdir("./75") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[ 63.319992][ T5213] loop0: detected capacity change from 0 to 512
[ 63.328522][ T5213] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.338463][ T5213] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.347132][ T5213] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5215] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5215] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./75/binderfs") = 0
umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./75/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./75") = 0
mkdir("./76", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5217
./strace-static-x86_64: Process 5217 attached
[pid 5217] chdir("./76") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5217] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 63.402571][ T5215] loop0: detected capacity change from 0 to 512
[ 63.411389][ T5215] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.421160][ T5215] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.430533][ T5215] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5217] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5217] close(3) = 0
[pid 5217] mkdir("./file0", 0777) = 0
[pid 5217] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./76/binderfs") = 0
umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
[ 63.474416][ T5217] loop0: detected capacity change from 0 to 512
[ 63.483498][ T5217] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.493894][ T5217] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.502827][ T5217] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./76/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./76") = 0
mkdir("./77", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5219 attached
, child_tidptr=0x555556f145d0) = 5219
[pid 5219] chdir("./77") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5219] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5219] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5219, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./77/binderfs") = 0
umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./77/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./77/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./77") = 0
mkdir("./78", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 63.587057][ T5219] loop0: detected capacity change from 0 to 512
[ 63.595630][ T5219] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.605246][ T5219] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.614189][ T5219] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5221
./strace-static-x86_64: Process 5221 attached
[pid 5221] chdir("./78") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5221] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5221] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./78/binderfs") = 0
umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./78/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./78") = 0
mkdir("./79", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5223
./strace-static-x86_64: Process 5223 attached
[pid 5223] chdir("./79") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5223] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 63.657505][ T5221] loop0: detected capacity change from 0 to 512
[ 63.665943][ T5221] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.675726][ T5221] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.684874][ T5221] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5223] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5223] close(3) = 0
[pid 5223] mkdir("./file0", 0777) = 0
[pid 5223] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./79/binderfs") = 0
umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./79/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./79") = 0
mkdir("./80", 0777) = 0
[ 63.728997][ T5223] loop0: detected capacity change from 0 to 512
[ 63.739184][ T5223] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.749273][ T5223] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.758709][ T5223] EXT4-fs (loop0): 1 truncate cleaned up
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5225
./strace-static-x86_64: Process 5225 attached
[pid 5225] chdir("./80") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5225] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5225] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5225] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5225, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./80/binderfs") = 0
umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./80/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./80/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./80") = 0
mkdir("./81", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5227
./strace-static-x86_64: Process 5227 attached
[pid 5227] chdir("./81") = 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
[ 63.829700][ T5225] loop0: detected capacity change from 0 to 512
[ 63.839338][ T5225] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.849330][ T5225] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.858255][ T5225] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5227] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5227] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./81/binderfs") = 0
umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./81/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./81") = 0
mkdir("./82", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5229
./strace-static-x86_64: Process 5229 attached
[pid 5229] chdir("./82") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5229] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 63.916663][ T5227] loop0: detected capacity change from 0 to 512
[ 63.926743][ T5227] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 63.937279][ T5227] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 63.946580][ T5227] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5229] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5229] close(3) = 0
[pid 5229] mkdir("./file0", 0777) = 0
[pid 5229] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./82/binderfs") = 0
umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./82/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./82/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./82") = 0
mkdir("./83", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5231
./strace-static-x86_64: Process 5231 attached
[pid 5231] chdir("./83") = 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
[ 63.995196][ T5229] loop0: detected capacity change from 0 to 512
[ 64.004381][ T5229] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.014102][ T5229] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.023105][ T5229] EXT4-fs (loop0): 1 truncate cleaned up
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5231] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5231] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./83/binderfs") = 0
umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./83/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./83/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./83") = 0
mkdir("./84", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5233
./strace-static-x86_64: Process 5233 attached
[pid 5233] chdir("./84") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5233] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 64.082106][ T5231] loop0: detected capacity change from 0 to 512
[ 64.090934][ T5231] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.101160][ T5231] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.110109][ T5231] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5233] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5233] close(3) = 0
[pid 5233] mkdir("./file0", 0777) = 0
[pid 5233] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./84/binderfs") = 0
umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./84/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./84/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./84") = 0
mkdir("./85", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5235
./strace-static-x86_64: Process 5235 attached
[pid 5235] chdir("./85") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5235] munmap(0x7f67ffbb8000, 262144) = 0
[ 64.162987][ T5233] loop0: detected capacity change from 0 to 512
[ 64.172492][ T5233] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.182970][ T5233] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.192271][ T5233] EXT4-fs (loop0): 1 truncate cleaned up
[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
[pid 5235] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5235, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./85/binderfs") = 0
umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./85/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./85/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./85") = 0
mkdir("./86", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5237
./strace-static-x86_64: Process 5237 attached
[pid 5237] chdir("./86") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5237] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 64.244163][ T5235] loop0: detected capacity change from 0 to 512
[ 64.253041][ T5235] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.262865][ T5235] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.272031][ T5235] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5237] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5237] close(3) = 0
[pid 5237] mkdir("./file0", 0777) = 0
[pid 5237] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./86/binderfs") = 0
umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./86/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./86/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./86") = 0
mkdir("./87", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5239
./strace-static-x86_64: Process 5239 attached
[pid 5239] chdir("./87") = 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) = 0x7f67ffbb8000
[ 64.325104][ T5237] loop0: detected capacity change from 0 to 512
[ 64.328215][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 64.344581][ T5237] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.354389][ T5237] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.363178][ T5237] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5239] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5239] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./87/binderfs") = 0
umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./87/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./87/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./87") = 0
mkdir("./88", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5241
./strace-static-x86_64: Process 5241 attached
[pid 5241] chdir("./88") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5241] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5241] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 64.413712][ T5239] loop0: detected capacity change from 0 to 512
[ 64.422265][ T5239] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.432407][ T5239] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.441537][ T5239] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5241] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5241] close(3) = 0
[pid 5241] mkdir("./file0", 0777) = 0
[pid 5241] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./88/binderfs") = 0
umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./88/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./88/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./88") = 0
mkdir("./89", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached
, child_tidptr=0x555556f145d0) = 5243
[pid 5243] chdir("./89") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5243] munmap(0x7f67ffbb8000, 262144) = 0
[ 64.488111][ T5241] loop0: detected capacity change from 0 to 512
[ 64.496705][ T5241] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.506757][ T5241] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.515802][ T5241] EXT4-fs (loop0): 1 truncate cleaned up
[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
[pid 5243] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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
[pid 5243] exit_group(0) = ?
[pid 5243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./89/binderfs") = 0
umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./89/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./89/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./89") = 0
mkdir("./90", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5245 attached
[pid 5245] chdir("./90") = 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
[ 64.569905][ T5243] loop0: detected capacity change from 0 to 512
[ 64.578527][ T5243] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.588585][ T5243] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.597805][ T5243] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5061] <... clone resumed>, child_tidptr=0x555556f145d0) = 5245
[pid 5245] memfd_create("syzkaller", 0) = 3
[pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5245] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5245] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5245, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./90/binderfs") = 0
[ 64.636171][ T5245] loop0: detected capacity change from 0 to 512
[ 64.645141][ T5245] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.655516][ T5245] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.664675][ T5245] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./90/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./90") = 0
mkdir("./91", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5247
./strace-static-x86_64: Process 5247 attached
[pid 5247] chdir("./91") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5247] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5247] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./91/binderfs") = 0
umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./91/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./91/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./91") = 0
mkdir("./92", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5249
./strace-static-x86_64: Process 5249 attached
[pid 5249] chdir("./92") = 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) = 0x7f67ffbb8000
[ 64.742849][ T5247] loop0: detected capacity change from 0 to 512
[ 64.751732][ T5247] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.761997][ T5247] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.771109][ T5247] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5249] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5249] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./92/binderfs") = 0
umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./92/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 64.827527][ T5249] loop0: detected capacity change from 0 to 512
[ 64.837480][ T5249] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.847580][ T5249] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.856755][ T5249] EXT4-fs (loop0): 1 truncate cleaned up
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./92/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./92") = 0
mkdir("./93", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5251
./strace-static-x86_64: Process 5251 attached
[pid 5251] chdir("./93") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5251] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5251] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5251, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./93/binderfs") = 0
umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./93/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./93") = 0
mkdir("./94", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5253
./strace-static-x86_64: Process 5253 attached
[pid 5253] chdir("./94") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5253] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 64.932498][ T5251] loop0: detected capacity change from 0 to 512
[ 64.941394][ T5251] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 64.951651][ T5251] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 64.960671][ T5251] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5253] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5253] close(3) = 0
[pid 5253] mkdir("./file0", 0777) = 0
[pid 5253] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./94/binderfs") = 0
umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./94/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./94") = 0
mkdir("./95", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached
, child_tidptr=0x555556f145d0) = 5255
[pid 5255] chdir("./95") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5255] munmap(0x7f67ffbb8000, 262144) = 0
[ 65.009529][ T5253] loop0: detected capacity change from 0 to 512
[ 65.018553][ T5253] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.028331][ T5253] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.037570][ T5253] EXT4-fs (loop0): 1 truncate cleaned up
[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
[pid 5255] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./95/binderfs") = 0
umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./95/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./95/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./95") = 0
mkdir("./96", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5257
./strace-static-x86_64: Process 5257 attached
[pid 5257] chdir("./96") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5257] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.091233][ T5255] loop0: detected capacity change from 0 to 512
[ 65.100170][ T5255] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.110056][ T5255] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.119049][ T5255] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5257] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5257] close(3) = 0
[pid 5257] mkdir("./file0", 0777) = 0
[pid 5257] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./96/binderfs") = 0
umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./96/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./96") = 0
mkdir("./97", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5259
./strace-static-x86_64: Process 5259 attached
[pid 5259] chdir("./97") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5259] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.166281][ T5257] loop0: detected capacity change from 0 to 512
[ 65.175278][ T5257] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.185494][ T5257] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.194625][ T5257] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5259] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5259] close(3) = 0
[pid 5259] mkdir("./file0", 0777) = 0
[pid 5259] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./97/binderfs") = 0
umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./97/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./97") = 0
mkdir("./98", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5261
./strace-static-x86_64: Process 5261 attached
[pid 5261] chdir("./98") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5261] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.234222][ T5259] loop0: detected capacity change from 0 to 512
[ 65.243595][ T5259] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.254399][ T5259] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.263126][ T5259] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5261] close(3) = 0
[pid 5261] mkdir("./file0", 0777) = 0
[pid 5261] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./98/binderfs") = 0
umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./98/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./98/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./98") = 0
mkdir("./99", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5263 attached
, child_tidptr=0x555556f145d0) = 5263
[pid 5263] chdir("./99") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5263] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.313555][ T5261] loop0: detected capacity change from 0 to 512
[ 65.322220][ T5261] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.332385][ T5261] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.341579][ T5261] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5263] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5263] close(3) = 0
[pid 5263] mkdir("./file0", 0777) = 0
[pid 5263] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5263, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./99/binderfs") = 0
umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./99/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./99/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./99") = 0
mkdir("./100", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5265
./strace-static-x86_64: Process 5265 attached
[pid 5265] chdir("./100") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5265] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5265] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.385519][ T5263] loop0: detected capacity change from 0 to 512
[ 65.396045][ T5263] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.405970][ T5263] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.415211][ T5263] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5265] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5265] close(3) = 0
[pid 5265] mkdir("./file0", 0777) = 0
[pid 5265] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./100/binderfs") = 0
umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./100/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./100/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./100") = 0
mkdir("./101", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5267
./strace-static-x86_64: Process 5267 attached
[pid 5267] chdir("./101") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5267] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.453762][ T5265] loop0: detected capacity change from 0 to 512
[ 65.462352][ T5265] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.472260][ T5265] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.481341][ T5265] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5267] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5267] close(3) = 0
[pid 5267] mkdir("./file0", 0777) = 0
[pid 5267] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5267, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./101/binderfs") = 0
umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./101/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./101") = 0
mkdir("./102", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5269
./strace-static-x86_64: Process 5269 attached
[pid 5269] chdir("./102") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5269] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.526005][ T5267] loop0: detected capacity change from 0 to 512
[ 65.535839][ T5267] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.546062][ T5267] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.556202][ T5267] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5269] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5269] close(3) = 0
[pid 5269] mkdir("./file0", 0777) = 0
[pid 5269] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5269, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./102/binderfs") = 0
umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./102/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./102/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./102") = 0
mkdir("./103", 0777) = 0
[ 65.602019][ T5269] loop0: detected capacity change from 0 to 512
[ 65.610474][ T5269] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.620203][ T5269] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.629699][ T5269] EXT4-fs (loop0): 1 truncate cleaned up
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5271
./strace-static-x86_64: Process 5271 attached
[pid 5271] chdir("./103") = 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") = 0
[pid 5271] memfd_create("syzkaller", 0) = 3
[pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5271] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5271] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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
[ 65.699004][ T5271] loop0: detected capacity change from 0 to 512
[ 65.709056][ T5271] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.723886][ T5271] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.732726][ T5271] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5271] close(4) = 0
[pid 5271] exit_group(0) = ?
[pid 5271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./103/binderfs") = 0
umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./103/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./103") = 0
mkdir("./104", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5273
./strace-static-x86_64: Process 5273 attached
[pid 5273] chdir("./104") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5273] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5273] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./104/binderfs") = 0
umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./104/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 65.839409][ T5273] loop0: detected capacity change from 0 to 512
[ 65.849095][ T5273] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.859890][ T5273] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.868526][ T5273] EXT4-fs (loop0): 1 truncate cleaned up
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./104/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./104") = 0
mkdir("./105", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5275
./strace-static-x86_64: Process 5275 attached
[pid 5275] chdir("./105") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5275] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5275] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5275, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./105/binderfs") = 0
umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./105/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./105") = 0
mkdir("./106", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5277
./strace-static-x86_64: Process 5277 attached
[pid 5277] chdir("./106") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5277] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5277] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 65.936959][ T5275] loop0: detected capacity change from 0 to 512
[ 65.946643][ T5275] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 65.956444][ T5275] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 65.965806][ T5275] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5277] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5277] close(3) = 0
[pid 5277] mkdir("./file0", 0777) = 0
[pid 5277] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5277, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./106/binderfs") = 0
umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./106/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 66.006299][ T5277] loop0: detected capacity change from 0 to 512
[ 66.015021][ T5277] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.025190][ T5277] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.034555][ T5277] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./106/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./106") = 0
mkdir("./107", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5279
./strace-static-x86_64: Process 5279 attached
[pid 5279] chdir("./107") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5279] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5279] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5279, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./107/binderfs") = 0
umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./107/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./107/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./107") = 0
mkdir("./108", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5281 attached
, child_tidptr=0x555556f145d0) = 5281
[pid 5281] chdir("./108") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5281] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5281] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.111247][ T5279] loop0: detected capacity change from 0 to 512
[ 66.120041][ T5279] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.130037][ T5279] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.138932][ T5279] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5281] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5281] close(3) = 0
[pid 5281] mkdir("./file0", 0777) = 0
[pid 5281] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5281, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./108/binderfs") = 0
umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./108/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
[ 66.180886][ T5281] loop0: detected capacity change from 0 to 512
[ 66.189931][ T5281] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.199778][ T5281] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.208686][ T5281] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
rmdir("./108") = 0
mkdir("./109", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5283 attached
, child_tidptr=0x555556f145d0) = 5283
[pid 5283] chdir("./109") = 0
[pid 5283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5283] setpgid(0, 0) = 0
[pid 5283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5283] write(3, "1000", 4) = 4
[pid 5283] close(3) = 0
[pid 5283] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5283] memfd_create("syzkaller", 0) = 3
[pid 5283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5283] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5283] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5283] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5283] close(3) = 0
[pid 5283] mkdir("./file0", 0777) = 0
[pid 5283] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5283] chdir("./file0") = 0
[pid 5283] ioctl(4, LOOP_CLR_FD) = 0
[pid 5283] close(4) = 0
[pid 5283] exit_group(0) = ?
[pid 5283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5283, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./109/binderfs") = 0
umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./109/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./109/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./109") = 0
mkdir("./110", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5285
./strace-static-x86_64: Process 5285 attached
[pid 5285] chdir("./110") = 0
[pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5285] setpgid(0, 0) = 0
[pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5285] write(3, "1000", 4) = 4
[pid 5285] close(3) = 0
[pid 5285] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5285] memfd_create("syzkaller", 0) = 3
[pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5285] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.277116][ T5283] loop0: detected capacity change from 0 to 512
[ 66.285829][ T5283] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.295950][ T5283] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.305442][ T5283] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5285] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5285] close(3) = 0
[pid 5285] mkdir("./file0", 0777) = 0
[pid 5285] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5285] chdir("./file0") = 0
[pid 5285] ioctl(4, LOOP_CLR_FD) = 0
[pid 5285] close(4) = 0
[pid 5285] exit_group(0) = ?
[pid 5285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5285, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./110/binderfs") = 0
umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./110/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./110/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./110") = 0
mkdir("./111", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5287
./strace-static-x86_64: Process 5287 attached
[pid 5287] chdir("./111") = 0
[pid 5287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5287] setpgid(0, 0) = 0
[pid 5287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5287] write(3, "1000", 4) = 4
[pid 5287] close(3) = 0
[pid 5287] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5287] memfd_create("syzkaller", 0) = 3
[pid 5287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5287] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5287] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.346957][ T5285] loop0: detected capacity change from 0 to 512
[ 66.355622][ T5285] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.366383][ T5285] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.375397][ T5285] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5287] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5287] close(3) = 0
[pid 5287] mkdir("./file0", 0777) = 0
[pid 5287] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5287] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5287] chdir("./file0") = 0
[pid 5287] ioctl(4, LOOP_CLR_FD) = 0
[pid 5287] close(4) = 0
[pid 5287] exit_group(0) = ?
[pid 5287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5287, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./111/binderfs") = 0
umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./111/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./111") = 0
mkdir("./112", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5289
./strace-static-x86_64: Process 5289 attached
[pid 5289] chdir("./112") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5289] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5289] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.417008][ T5287] loop0: detected capacity change from 0 to 512
[ 66.426162][ T5287] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.436062][ T5287] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.445353][ T5287] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5289] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5289] close(3) = 0
[pid 5289] mkdir("./file0", 0777) = 0
[pid 5289] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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
[pid 5289] exit_group(0) = ?
[pid 5289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5289, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./112/binderfs") = 0
umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./112/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./112/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./112") = 0
mkdir("./113", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5291
./strace-static-x86_64: Process 5291 attached
[pid 5291] chdir("./113") = 0
[pid 5291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5291] setpgid(0, 0) = 0
[pid 5291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5291] write(3, "1000", 4) = 4
[pid 5291] close(3) = 0
[pid 5291] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5291] memfd_create("syzkaller", 0) = 3
[pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5291] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.483888][ T5289] loop0: detected capacity change from 0 to 512
[ 66.492707][ T5289] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.502814][ T5289] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.511752][ T5289] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5291] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5291] close(3) = 0
[pid 5291] mkdir("./file0", 0777) = 0
[pid 5291] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5291] chdir("./file0") = 0
[pid 5291] ioctl(4, LOOP_CLR_FD) = 0
[pid 5291] close(4) = 0
[pid 5291] exit_group(0) = ?
[pid 5291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5291, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./113/binderfs") = 0
umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./113/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./113/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./113/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./113") = 0
mkdir("./114", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5293
./strace-static-x86_64: Process 5293 attached
[pid 5293] chdir("./114") = 0
[pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5293] setpgid(0, 0) = 0
[pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5293] write(3, "1000", 4) = 4
[pid 5293] close(3) = 0
[pid 5293] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5293] memfd_create("syzkaller", 0) = 3
[pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5293] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.560326][ T5291] loop0: detected capacity change from 0 to 512
[ 66.569853][ T5291] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.580028][ T5291] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.588919][ T5291] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5293] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5293] close(3) = 0
[pid 5293] mkdir("./file0", 0777) = 0
[pid 5293] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5293] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5293] chdir("./file0") = 0
[pid 5293] ioctl(4, LOOP_CLR_FD) = 0
[pid 5293] close(4) = 0
[pid 5293] exit_group(0) = ?
[pid 5293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./114/binderfs") = 0
[ 66.638158][ T5293] loop0: detected capacity change from 0 to 512
[ 66.638751][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 66.657298][ T5293] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.667451][ T5293] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.676436][ T5293] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./114/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./114/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./114/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./114") = 0
mkdir("./115", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5295 attached
, child_tidptr=0x555556f145d0) = 5295
[pid 5295] chdir("./115") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5295] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5295] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./115/binderfs") = 0
umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./115/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./115/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./115/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./115") = 0
mkdir("./116", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5297
./strace-static-x86_64: Process 5297 attached
[pid 5297] chdir("./116") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5297] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.747183][ T5295] loop0: detected capacity change from 0 to 512
[ 66.755859][ T5295] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.766415][ T5295] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.775462][ T5295] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5297] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5297] close(3) = 0
[pid 5297] mkdir("./file0", 0777) = 0
[pid 5297] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5297, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./116/binderfs") = 0
umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./116/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./116/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./116/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./116") = 0
mkdir("./117", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 66.816546][ T5297] loop0: detected capacity change from 0 to 512
[ 66.825775][ T5297] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.835927][ T5297] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.844843][ T5297] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5299
./strace-static-x86_64: Process 5299 attached
[pid 5299] chdir("./117") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5299] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5299] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./117/binderfs") = 0
umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./117/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./117/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./117/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./117") = 0
mkdir("./118", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 66.910732][ T5299] loop0: detected capacity change from 0 to 512
[ 66.919578][ T5299] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 66.929893][ T5299] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 66.939054][ T5299] EXT4-fs (loop0): 1 truncate cleaned up
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5301
./strace-static-x86_64: Process 5301 attached
[pid 5301] chdir("./118") = 0
[pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5301] setpgid(0, 0) = 0
[pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5301] write(3, "1000", 4) = 4
[pid 5301] close(3) = 0
[pid 5301] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5301] memfd_create("syzkaller", 0) = 3
[pid 5301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5301] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5301] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5301] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5301] close(3) = 0
[pid 5301] mkdir("./file0", 0777) = 0
[pid 5301] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5301] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5301] chdir("./file0") = 0
[pid 5301] ioctl(4, LOOP_CLR_FD) = 0
[pid 5301] close(4) = 0
[pid 5301] exit_group(0) = ?
[pid 5301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./118/binderfs") = 0
umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./118/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./118/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./118/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./118") = 0
mkdir("./119", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5303
./strace-static-x86_64: Process 5303 attached
[pid 5303] chdir("./119") = 0
[pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5303] setpgid(0, 0) = 0
[pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5303] write(3, "1000", 4) = 4
[pid 5303] close(3) = 0
[pid 5303] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5303] memfd_create("syzkaller", 0) = 3
[pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[pid 5303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5303] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 66.997936][ T5301] loop0: detected capacity change from 0 to 512
[ 67.001806][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 67.015038][ T5301] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.025173][ T5301] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.034190][ T5301] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5303] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5303] close(3) = 0
[pid 5303] mkdir("./file0", 0777) = 0
[pid 5303] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 0
[pid 5303] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5303] chdir("./file0") = 0
[pid 5303] ioctl(4, LOOP_CLR_FD) = 0
[pid 5303] close(4) = 0
[pid 5303] exit_group(0) = ?
[pid 5303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5303, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./119/binderfs") = 0
umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 67.078217][ T5303] loop0: detected capacity change from 0 to 512
[ 67.087904][ T5303] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.098296][ T5303] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.107033][ T5303] EXT4-fs (loop0): 1 truncate cleaned up
lstat("./119/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./119/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./119/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./119") = 0
mkdir("./120", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5305
./strace-static-x86_64: Process 5305 attached
[pid 5305] chdir("./120") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5305] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5305] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./120/binderfs") = 0
umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./120/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./120/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./120/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./120") = 0
mkdir("./121", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5307 attached
, child_tidptr=0x555556f145d0) = 5307
[pid 5307] chdir("./121") = 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) = 0x7f67ffbb8000
[ 67.181303][ T5305] loop0: detected capacity change from 0 to 512
[ 67.190622][ T5305] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.200850][ T5305] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.209935][ T5305] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5307] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5307] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./121/binderfs") = 0
umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./121/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./121/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./121/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./121") = 0
mkdir("./122", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5309
./strace-static-x86_64: Process 5309 attached
[pid 5309] chdir("./122") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5309] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 67.265211][ T5307] loop0: detected capacity change from 0 to 512
[ 67.274604][ T5307] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.284816][ T5307] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.293685][ T5307] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5309] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5309] close(3) = 0
[pid 5309] mkdir("./file0", 0777) = 0
[pid 5309] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./122/binderfs") = 0
umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./122/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./122/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./122/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./122") = 0
mkdir("./123", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5311
./strace-static-x86_64: Process 5311 attached
[pid 5311] chdir("./123") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5311] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5311] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 67.345637][ T5309] loop0: detected capacity change from 0 to 512
[ 67.354024][ T5309] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.364346][ T5309] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.372887][ T5309] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5311] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5311] close(3) = 0
[pid 5311] mkdir("./file0", 0777) = 0
[pid 5311] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./123/binderfs") = 0
umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./123/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./123/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
[ 67.421539][ T5311] loop0: detected capacity change from 0 to 512
[ 67.430350][ T5311] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.440174][ T5311] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.449435][ T5311] EXT4-fs (loop0): 1 truncate cleaned up
rmdir("./123/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./123") = 0
mkdir("./124", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5313
./strace-static-x86_64: Process 5313 attached
[pid 5313] chdir("./124") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5313] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5313] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./124/binderfs") = 0
umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./124/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./124/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./124/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./124") = 0
mkdir("./125", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 67.522380][ T5313] loop0: detected capacity change from 0 to 512
[ 67.532493][ T5313] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.542656][ T5313] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.551679][ T5313] EXT4-fs (loop0): 1 truncate cleaned up
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5315
./strace-static-x86_64: Process 5315 attached
[pid 5315] chdir("./125") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5315] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5315] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./125/binderfs") = 0
umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./125/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./125/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./125/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./125") = 0
mkdir("./126", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5317
./strace-static-x86_64: Process 5317 attached
[pid 5317] chdir("./126") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5317] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5317] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 67.613193][ T5315] loop0: detected capacity change from 0 to 512
[ 67.622746][ T5315] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.633464][ T5315] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.642436][ T5315] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5317] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5317] close(3) = 0
[pid 5317] mkdir("./file0", 0777) = 0
[pid 5317] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./126/binderfs") = 0
umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./126/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./126/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./126/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./126") = 0
mkdir("./127", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5319 attached
, child_tidptr=0x555556f145d0) = 5319
[pid 5319] chdir("./127") = 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
[ 67.693547][ T5317] loop0: detected capacity change from 0 to 512
[ 67.703196][ T5317] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.713853][ T5317] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.723067][ T5317] EXT4-fs (loop0): 1 truncate cleaned up
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5319] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5319] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./127/binderfs") = 0
umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./127/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./127/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./127/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./127") = 0
mkdir("./128", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5321
./strace-static-x86_64: Process 5321 attached
[pid 5321] chdir("./128") = 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) = 0x7f67ffbb8000
[ 67.782127][ T5319] loop0: detected capacity change from 0 to 512
[ 67.791212][ T5319] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.801451][ T5319] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.810449][ T5319] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5321] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5321] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./128", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./128/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./128/binderfs") = 0
umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./128/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./128/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./128/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./128") = 0
mkdir("./129", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5323
./strace-static-x86_64: Process 5323 attached
[pid 5323] chdir("./129") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5323] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 67.866868][ T5321] loop0: detected capacity change from 0 to 512
[ 67.875933][ T5321] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.885829][ T5321] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.894922][ T5321] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5323] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5323] close(3) = 0
[pid 5323] mkdir("./file0", 0777) = 0
[pid 5323] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./129", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./129/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./129/binderfs") = 0
umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./129/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./129/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./129/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./129") = 0
mkdir("./130", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5325
./strace-static-x86_64: Process 5325 attached
[pid 5325] chdir("./130") = 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) = 0x7f67ffbb8000
[ 67.946190][ T5323] loop0: detected capacity change from 0 to 512
[ 67.956802][ T5323] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 67.966746][ T5323] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 67.975821][ T5323] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5325] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5325] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./130", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./130/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./130/binderfs") = 0
umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./130/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./130/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./130/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./130") = 0
mkdir("./131", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5327
./strace-static-x86_64: Process 5327 attached
[pid 5327] chdir("./131") = 0
[pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 68.031625][ T5325] loop0: detected capacity change from 0 to 512
[ 68.040621][ T5325] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.050612][ T5325] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.059421][ T5325] EXT4-fs (loop0): 1 truncate cleaned up
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5327] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5327] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./131", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./131/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./131/binderfs") = 0
umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./131/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./131/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./131/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./131") = 0
mkdir("./132", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 68.120224][ T5327] loop0: detected capacity change from 0 to 512
[ 68.129944][ T5327] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.140208][ T5327] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.149208][ T5327] EXT4-fs (loop0): 1 truncate cleaned up
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5329 attached
, child_tidptr=0x555556f145d0) = 5329
[pid 5329] chdir("./132") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5329] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5329] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./132", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./132/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./132/binderfs") = 0
umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./132/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./132/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./132/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./132") = 0
mkdir("./133", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5331
./strace-static-x86_64: Process 5331 attached
[pid 5331] chdir("./133") = 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 5331] memfd_create("syzkaller", 0) = 3
[pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5331] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5331] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 68.215101][ T5329] loop0: detected capacity change from 0 to 512
[ 68.224100][ T5329] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.234530][ T5329] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.243089][ T5329] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5331] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5331] close(3) = 0
[pid 5331] mkdir("./file0", 0777) = 0
[pid 5331] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./133", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./133/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./133/binderfs") = 0
umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./133/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./133/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
[ 68.288119][ T5331] loop0: detected capacity change from 0 to 512
[ 68.297816][ T5331] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.308423][ T5331] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.317773][ T5331] EXT4-fs (loop0): 1 truncate cleaned up
close(4) = 0
rmdir("./133/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./133") = 0
mkdir("./134", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5333
./strace-static-x86_64: Process 5333 attached
[pid 5333] chdir("./134") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5333] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5333] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./134", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./134/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./134/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./134/binderfs") = 0
umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./134/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./134/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./134/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./134") = 0
mkdir("./135", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5335
./strace-static-x86_64: Process 5335 attached
[pid 5335] chdir("./135") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5335] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5335] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 68.392781][ T5333] loop0: detected capacity change from 0 to 512
[ 68.402907][ T5333] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.413392][ T5333] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.422545][ T5333] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5335] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5335] close(3) = 0
[pid 5335] mkdir("./file0", 0777) = 0
[pid 5335] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./135", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./135/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./135/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./135/binderfs") = 0
umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./135/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./135/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
[ 68.468896][ T5335] loop0: detected capacity change from 0 to 512
[ 68.478681][ T5335] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.488548][ T5335] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.497538][ T5335] EXT4-fs (loop0): 1 truncate cleaned up
close(4) = 0
rmdir("./135/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./135") = 0
mkdir("./136", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5337
./strace-static-x86_64: Process 5337 attached
[pid 5337] chdir("./136") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5337] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5337] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./136", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./136/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./136/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./136/binderfs") = 0
umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./136/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./136/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./136/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./136") = 0
mkdir("./137", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5339 attached
[pid 5339] chdir("./137") = 0
[pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5339] setpgid(0, 0) = 0
[ 68.573470][ T5337] loop0: detected capacity change from 0 to 512
[ 68.582502][ T5337] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.592773][ T5337] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.601821][ T5337] EXT4-fs (loop0): 1 truncate cleaned up
[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 5061] <... clone resumed>, child_tidptr=0x555556f145d0) = 5339
[pid 5339] memfd_create("syzkaller", 0) = 3
[pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5339] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5339] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./137", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./137/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./137/binderfs") = 0
umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./137/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./137/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./137/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./137") = 0
mkdir("./138", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5341
./strace-static-x86_64: Process 5341 attached
[pid 5341] chdir("./138") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5341] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 68.661611][ T5339] loop0: detected capacity change from 0 to 512
[ 68.670134][ T5339] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.680015][ T5339] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.689257][ T5339] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5341] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5341] close(3) = 0
[pid 5341] mkdir("./file0", 0777) = 0
[pid 5341] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./138", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./138/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./138/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./138/binderfs") = 0
[ 68.729827][ T5341] loop0: detected capacity change from 0 to 512
[ 68.731000][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 68.747491][ T5341] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.757382][ T5341] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.766346][ T5341] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./138/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./138/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./138/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./138") = 0
mkdir("./139", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5343
./strace-static-x86_64: Process 5343 attached
[pid 5343] chdir("./139") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5343] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5343] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./139", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./139/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./139/binderfs") = 0
umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./139/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./139/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./139/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./139") = 0
mkdir("./140", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5345
./strace-static-x86_64: Process 5345 attached
[pid 5345] chdir("./140") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5345] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 68.828468][ T5343] loop0: detected capacity change from 0 to 512
[ 68.837958][ T5343] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.848083][ T5343] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.857295][ T5343] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5345] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5345] close(3) = 0
[pid 5345] mkdir("./file0", 0777) = 0
[pid 5345] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./140", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./140/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./140/binderfs") = 0
umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./140/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./140/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./140/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./140") = 0
mkdir("./141", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5347
./strace-static-x86_64: Process 5347 attached
[pid 5347] chdir("./141") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5347] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 68.908083][ T5345] loop0: detected capacity change from 0 to 512
[ 68.916347][ T5345] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 68.926257][ T5345] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 68.935450][ T5345] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5347] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5347] close(3) = 0
[pid 5347] mkdir("./file0", 0777) = 0
[pid 5347] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./141", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./141/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./141/binderfs") = 0
umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./141/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./141/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./141/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./141") = 0
mkdir("./142", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5349
./strace-static-x86_64: Process 5349 attached
[pid 5349] chdir("./142") = 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") = 0
[pid 5349] memfd_create("syzkaller", 0) = 3
[pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5349] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 68.987814][ T5347] loop0: detected capacity change from 0 to 512
[ 68.996870][ T5347] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.007257][ T5347] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.017055][ T5347] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5349] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5349] close(3) = 0
[pid 5349] mkdir("./file0", 0777) = 0
[pid 5349] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./142", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./142/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./142/binderfs") = 0
umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./142/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./142/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./142/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./142") = 0
mkdir("./143", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5351
./strace-static-x86_64: Process 5351 attached
[pid 5351] chdir("./143") = 0
[ 69.063853][ T5349] loop0: detected capacity change from 0 to 512
[ 69.072008][ T5349] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.081962][ T5349] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.091159][ T5349] EXT4-fs (loop0): 1 truncate cleaned up
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5351] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5351] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./143", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./143/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./143/binderfs") = 0
umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./143/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./143/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./143/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./143") = 0
mkdir("./144", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5353 attached
[pid 5353] chdir("./144") = 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 5061] <... clone resumed>, child_tidptr=0x555556f145d0) = 5353
[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) = 0x7f67ffbb8000
[ 69.158445][ T5351] loop0: detected capacity change from 0 to 512
[ 69.167337][ T5351] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.176978][ T5351] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.186184][ T5351] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5353] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5353] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./144", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./144/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./144/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./144/binderfs") = 0
[ 69.240330][ T5353] loop0: detected capacity change from 0 to 512
[ 69.249536][ T5353] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.259437][ T5353] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.268229][ T5353] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./144/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./144/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./144/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./144") = 0
mkdir("./145", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5355
./strace-static-x86_64: Process 5355 attached
[pid 5355] chdir("./145") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5355] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5355] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./145", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./145/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./145/binderfs") = 0
umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./145/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./145/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./145/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./145") = 0
mkdir("./146", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5357
./strace-static-x86_64: Process 5357 attached
[pid 5357] chdir("./146") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5357] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5357] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 69.344676][ T5355] loop0: detected capacity change from 0 to 512
[ 69.354062][ T5355] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.364094][ T5355] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.372950][ T5355] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5357] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5357] close(3) = 0
[pid 5357] mkdir("./file0", 0777) = 0
[pid 5357] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./146", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./146/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./146/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./146/binderfs") = 0
umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./146/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./146/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./146/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./146") = 0
[ 69.415293][ T5357] loop0: detected capacity change from 0 to 512
[ 69.419187][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 69.431577][ T5357] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.441620][ T5357] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.450352][ T5357] EXT4-fs (loop0): 1 truncate cleaned up
mkdir("./147", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5359
./strace-static-x86_64: Process 5359 attached
[pid 5359] chdir("./147") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5359] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5359] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./147", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./147/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./147/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./147/binderfs") = 0
umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./147/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./147/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./147/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./147") = 0
mkdir("./148", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5361
./strace-static-x86_64: Process 5361 attached
[pid 5361] chdir("./148") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5361] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 69.515106][ T5359] loop0: detected capacity change from 0 to 512
[ 69.524392][ T5359] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.534680][ T5359] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.543865][ T5359] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5361] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5361] close(3) = 0
[pid 5361] mkdir("./file0", 0777) = 0
[pid 5361] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./148", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./148/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./148/binderfs") = 0
umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./148/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./148/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./148/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./148") = 0
mkdir("./149", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5363
./strace-static-x86_64: Process 5363 attached
[pid 5363] chdir("./149") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5363] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5363] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 69.577250][ T5361] loop0: detected capacity change from 0 to 512
[ 69.586417][ T5361] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.596794][ T5361] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.605962][ T5361] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5363] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5363] close(3) = 0
[pid 5363] mkdir("./file0", 0777) = 0
[pid 5363] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./149", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./149/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./149/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./149/binderfs") = 0
umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./149/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./149/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./149/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./149") = 0
mkdir("./150", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5365
./strace-static-x86_64: Process 5365 attached
[pid 5365] chdir("./150") = 0
[pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 69.645604][ T5363] loop0: detected capacity change from 0 to 512
[ 69.654364][ T5363] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.664214][ T5363] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.672927][ T5363] EXT4-fs (loop0): 1 truncate cleaned up
[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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5365] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5365] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./150", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./150/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./150/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./150/binderfs") = 0
umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./150/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./150/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./150/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./150") = 0
mkdir("./151", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5367
./strace-static-x86_64: Process 5367 attached
[pid 5367] chdir("./151") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5367] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 69.736811][ T5365] loop0: detected capacity change from 0 to 512
[ 69.745991][ T5365] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.755829][ T5365] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.765514][ T5365] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5367] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5367] close(3) = 0
[pid 5367] mkdir("./file0", 0777) = 0
[pid 5367] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./151", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./151/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./151/binderfs") = 0
umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./151/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./151/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./151/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./151") = 0
mkdir("./152", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5369
./strace-static-x86_64: Process 5369 attached
[pid 5369] chdir("./152") = 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) = 0x7f67ffbb8000
[ 69.808740][ T5367] loop0: detected capacity change from 0 to 512
[ 69.817721][ T5367] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.828112][ T5367] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.837616][ T5367] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5369] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5369] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5369] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./152", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./152/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./152/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./152/binderfs") = 0
umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./152/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./152/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
[ 69.895276][ T5369] loop0: detected capacity change from 0 to 512
[ 69.904747][ T5369] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 69.914756][ T5369] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 69.924518][ T5369] EXT4-fs (loop0): 1 truncate cleaned up
rmdir("./152/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./152") = 0
mkdir("./153", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5371
./strace-static-x86_64: Process 5371 attached
[pid 5371] chdir("./153") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5371] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5371] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./153", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./153/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./153/binderfs") = 0
umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./153/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./153/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./153/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./153") = 0
mkdir("./154", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5373
./strace-static-x86_64: Process 5373 attached
[pid 5373] chdir("./154") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5373] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 69.987880][ T5371] loop0: detected capacity change from 0 to 512
[ 69.996400][ T5371] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.006303][ T5371] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.015359][ T5371] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5373] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5373] close(3) = 0
[pid 5373] mkdir("./file0", 0777) = 0
[pid 5373] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./154", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./154/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./154/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./154/binderfs") = 0
umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./154/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./154/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./154/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./154") = 0
mkdir("./155", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5375
./strace-static-x86_64: Process 5375 attached
[pid 5375] chdir("./155") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5375] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 70.047061][ T5373] loop0: detected capacity change from 0 to 512
[ 70.056554][ T5373] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.066368][ T5373] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.075606][ T5373] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5375] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5375] close(3) = 0
[pid 5375] mkdir("./file0", 0777) = 0
[pid 5375] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./155", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./155/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./155/binderfs") = 0
umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./155/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./155/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./155/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./155") = 0
mkdir("./156", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5377 attached
, child_tidptr=0x555556f145d0) = 5377
[pid 5377] chdir("./156") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5377] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 70.114418][ T5375] loop0: detected capacity change from 0 to 512
[ 70.123879][ T5375] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.134750][ T5375] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.143689][ T5375] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5377] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5377] close(3) = 0
[pid 5377] mkdir("./file0", 0777) = 0
[pid 5377] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./156/binderfs") = 0
umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./156/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./156/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./156/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./156") = 0
mkdir("./157", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5379
./strace-static-x86_64: Process 5379 attached
[pid 5379] chdir("./157") = 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) = 0x7f67ffbb8000
[ 70.194536][ T5377] loop0: detected capacity change from 0 to 512
[ 70.204084][ T5377] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.214613][ T5377] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.223927][ T5377] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5379] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5379] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./157/binderfs") = 0
umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./157/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./157/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./157/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./157") = 0
mkdir("./158", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5381
./strace-static-x86_64: Process 5381 attached
[pid 5381] chdir("./158") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5381] munmap(0x7f67ffbb8000, 262144) = 0
[ 70.255596][ T5379] loop0: detected capacity change from 0 to 512
[ 70.259263][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 70.272446][ T5379] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.283005][ T5379] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.292283][ T5379] EXT4-fs (loop0): 1 truncate cleaned up
[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
[pid 5381] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./158/binderfs") = 0
umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./158/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./158") = 0
mkdir("./159", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5383
./strace-static-x86_64: Process 5383 attached
[pid 5383] chdir("./159") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5383] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 70.337120][ T5381] loop0: detected capacity change from 0 to 512
[ 70.346058][ T5381] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.355887][ T5381] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.365272][ T5381] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5383] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5383] close(3) = 0
[pid 5383] mkdir("./file0", 0777) = 0
[pid 5383] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./159/binderfs") = 0
umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./159/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./159/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./159/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./159") = 0
mkdir("./160", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5385
./strace-static-x86_64: Process 5385 attached
[pid 5385] chdir("./160") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5385] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5385] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 70.407713][ T5383] loop0: detected capacity change from 0 to 512
[ 70.417376][ T5383] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.427442][ T5383] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.436981][ T5383] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5385] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5385] close(3) = 0
[pid 5385] mkdir("./file0", 0777) = 0
[pid 5385] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./160/binderfs") = 0
umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./160/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./160/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./160/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./160") = 0
mkdir("./161", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5387
./strace-static-x86_64: Process 5387 attached
[pid 5387] chdir("./161") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5387] munmap(0x7f67ffbb8000, 262144) = 0
[pid 5387] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[ 70.478397][ T5385] loop0: detected capacity change from 0 to 512
[ 70.487925][ T5385] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.498091][ T5385] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.507631][ T5385] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5387] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5387] close(3) = 0
[pid 5387] mkdir("./file0", 0777) = 0
[pid 5387] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./161/binderfs") = 0
umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./161/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
[ 70.549156][ T5387] loop0: detected capacity change from 0 to 512
[ 70.550434][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 70.565772][ T5387] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.576003][ T5387] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.584983][ T5387] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./161/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./161") = 0
mkdir("./162", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5389
./strace-static-x86_64: Process 5389 attached
[pid 5389] chdir("./162") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5389] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5389] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./162/binderfs") = 0
umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
[ 70.645532][ T5389] loop0: detected capacity change from 0 to 512
[ 70.649124][ T5063] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 70.662194][ T5389] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.672419][ T5389] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.682298][ T5389] EXT4-fs (loop0): 1 truncate cleaned up
umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./162/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./162/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./162") = 0
mkdir("./163", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5391
./strace-static-x86_64: Process 5391 attached
[pid 5391] chdir("./163") = 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) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5391] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5391] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./163/binderfs") = 0
umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./163/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./163/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./163") = 0
mkdir("./164", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5393
./strace-static-x86_64: Process 5393 attached
[pid 5393] chdir("./164") = 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
[ 70.756115][ T5391] loop0: detected capacity change from 0 to 512
[ 70.766492][ T5391] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.776740][ T5391] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.785931][ T5391] EXT4-fs (loop0): 1 truncate cleaned up
[pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f67ffbb8000
[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"..., 262144) = 262144
[pid 5393] munmap(0x7f67ffbb8000, 262144) = 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
[pid 5393] mount("/dev/loop0", "./file0", "ext4", MS_RDONLY|MS_NOSUID|MS_NODEV|MS_MANDLOCK, "nojournal_checksum,nodelalloc,grpjquota=,barrier=0x0000000080000000,data_err=abort,abort,discard,jqf"...) = 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] exit_group(0) = ?
[pid 5393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555556f15620 /* 4 entries */, 32768) = 112
umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./164/binderfs") = 0
umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./164/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556f1d660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556f1d660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./164/file0") = 0
getdents64(3, 0x555556f15620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./164") = 0
mkdir("./165", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556f145d0) = 5395
./strace-static-x86_64: Process 5395 attached
[pid 5395] chdir("./165") = 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) = 0x7f67ffbb8000
[ 70.843685][ T5393] loop0: detected capacity change from 0 to 512
[ 70.852777][ T5393] EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
[ 70.863087][ T5393] EXT4-fs (loop0): orphan cleanup on readonly fs
[ 70.874061][ T5393] EXT4-fs (loop0): 1 truncate cleaned up
[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"..., 262144) = 262144
[pid 5395] munmap(0x7f67ffbb8000, 262144) = 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