./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor943297554
<...>
Warning: Permanently added '10.128.10.26' (ED25519) to the list of known hosts.
execve("./syz-executor943297554", ["./syz-executor943297554"], 0x7ffeae232630 /* 10 vars */) = 0
brk(NULL) = 0x55556068d000
brk(0x55556068dd00) = 0x55556068dd00
arch_prctl(ARCH_SET_FS, 0x55556068d380) = 0
set_tid_address(0x55556068d650) = 5094
set_robust_list(0x55556068d660, 24) = 0
rseq(0x55556068dca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor943297554", 4096) = 27
getrandom("\x10\x71\xfd\x71\x84\xaa\x8b\xd1", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55556068dd00
brk(0x5555606aed00) = 0x5555606aed00
brk(0x5555606af000) = 0x5555606af000
mprotect(0x7fdda5966000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
mkdir("./syzkaller.Ew4gmk", 0700) = 0
chmod("./syzkaller.Ew4gmk", 0777) = 0
chdir("./syzkaller.Ew4gmk") = 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./strace-static-x86_64: Process 5096 attached
, child_tidptr=0x55556068d650) = 5096
[pid 5096] set_robust_list(0x55556068d660, 24) = 0
[pid 5096] chdir("./0") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5096] memfd_create("syzkaller", 0) = 3
[pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5096] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5096] close(3) = 0
[pid 5096] close(4) = 0
[pid 5096] mkdir("./file1", 0777) = 0
[ 72.965454][ T5096] loop0: detected capacity change from 0 to 512
[pid 5096] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5096] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5096] chdir("./file1") = 0
[pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 73.008836][ T5096] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 73.021707][ T5096] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/0/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5096] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5096] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5096] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5096] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=6 /* 0.06 s */} ---
umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs") = 0
umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./0/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
[ 73.145517][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5100 attached
<unfinished ...>
[pid 5100] set_robust_list(0x55556068d660, 24) = 0
[pid 5100] chdir("./1" <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5100
[pid 5100] <... chdir resumed>) = 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
executing program
[pid 5100] write(1, "executing program\n", 18) = 18
[pid 5100] memfd_create("syzkaller", 0) = 3
[pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5100] mkdir("./file1", 0777) = 0
[ 73.293271][ T5100] loop0: detected capacity change from 0 to 512
[pid 5100] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5100] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5100] chdir("./file1") = 0
[pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5100] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5100] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5100] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5100] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5100] exit_group(0) = ?
[ 73.345387][ T5100] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 73.357991][ T5100] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/1/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[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=4 /* 0.04 s */} ---
umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./1/binderfs") = 0
umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./1/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./1/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./1/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./1") = 0
mkdir("./2", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 73.434411][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5103 attached
, child_tidptr=0x55556068d650) = 5103
[pid 5103] set_robust_list(0x55556068d660, 24) = 0
[pid 5103] chdir("./2") = 0
[pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5103] setpgid(0, 0) = 0
[pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5103] write(3, "1000", 4) = 4
[pid 5103] close(3) = 0
[pid 5103] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5103] write(1, "executing program\n", 18) = 18
[pid 5103] memfd_create("syzkaller", 0) = 3
[pid 5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5103] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5103] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5103] close(3) = 0
[pid 5103] close(4) = 0
[pid 5103] mkdir("./file1", 0777) = 0
[ 73.603525][ T5103] loop0: detected capacity change from 0 to 512
[pid 5103] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5103] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5103] chdir("./file1") = 0
[pid 5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 73.646338][ T5103] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 73.658959][ T5103] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/2/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5103] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5103] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5103] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5103] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5103] exit_group(0) = ?
[pid 5103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./2/binderfs") = 0
umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./2/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./2/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./2/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./2") = 0
mkdir("./3", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 73.776842][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5107 attached
, child_tidptr=0x55556068d650) = 5107
[pid 5107] set_robust_list(0x55556068d660, 24) = 0
[pid 5107] chdir("./3") = 0
[pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5107] setpgid(0, 0) = 0
[pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5107] write(3, "1000", 4) = 4
[pid 5107] close(3) = 0
executing program
[pid 5107] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5107] write(1, "executing program\n", 18) = 18
[pid 5107] memfd_create("syzkaller", 0) = 3
[pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5107] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5107] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5107] close(3) = 0
[pid 5107] close(4) = 0
[pid 5107] mkdir("./file1", 0777) = 0
[ 73.971413][ T5107] loop0: detected capacity change from 0 to 512
[pid 5107] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5107] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5107] chdir("./file1") = 0
[pid 5107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5107] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5107] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5107] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5107] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5107] exit_group(0) = ?
[pid 5107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./3/binderfs") = 0
[ 74.025385][ T5107] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 74.038078][ T5107] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/3/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./3/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./3/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./3/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./3") = 0
mkdir("./4", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 74.097219][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5110 attached
, child_tidptr=0x55556068d650) = 5110
[pid 5110] set_robust_list(0x55556068d660, 24) = 0
[pid 5110] chdir("./4") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5110] memfd_create("syzkaller", 0) = 3
[pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5110] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5110] close(3) = 0
[pid 5110] close(4) = 0
[pid 5110] mkdir("./file1", 0777) = 0
[ 74.279263][ T5110] loop0: detected capacity change from 0 to 512
[pid 5110] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5110] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5110] chdir("./file1") = 0
[pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5110] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5110] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5110] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5110] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[ 74.325315][ T5110] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 74.338154][ T5110] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/4/file1 supports timestamps until 2038-01-19 (0x7fffffff)
unlink("./4/binderfs") = 0
umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./4/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./4/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./4/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./4") = 0
mkdir("./5", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 74.408165][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5113 attached
<unfinished ...>
[pid 5113] set_robust_list(0x55556068d660, 24 <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5113
[pid 5113] <... set_robust_list resumed>) = 0
[pid 5113] chdir("./5") = 0
[pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5113] setpgid(0, 0) = 0
[pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5113] write(3, "1000", 4) = 4
[pid 5113] close(3) = 0
[pid 5113] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5113] write(1, "executing program\n", 18) = 18
[pid 5113] memfd_create("syzkaller", 0) = 3
[pid 5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5113] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5113] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5113] close(3) = 0
[pid 5113] close(4) = 0
[pid 5113] mkdir("./file1", 0777) = 0
[ 74.561863][ T5113] loop0: detected capacity change from 0 to 512
[pid 5113] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5113] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5113] chdir("./file1") = 0
[pid 5113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5113] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5113] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5113] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5113] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5113] exit_group(0) = ?
[pid 5113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
[ 74.616352][ T5113] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 74.628903][ T5113] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/5/file1 supports timestamps until 2038-01-19 (0x7fffffff)
unlink("./5/binderfs") = 0
umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./5/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./5/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./5/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./5") = 0
mkdir("./6", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 74.691269][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5116 attached
<unfinished ...>
[pid 5116] set_robust_list(0x55556068d660, 24) = 0
[pid 5116] chdir("./6") = 0
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5116
[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] write(1, "executing program\n", 18executing program
) = 18
[pid 5116] memfd_create("syzkaller", 0) = 3
[pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5116] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5116] close(3) = 0
[pid 5116] close(4) = 0
[pid 5116] mkdir("./file1", 0777) = 0
[ 74.871429][ T5116] loop0: detected capacity change from 0 to 512
[pid 5116] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5116] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5116] chdir("./file1") = 0
[pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5116] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5116] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5116] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5116] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./6/binderfs") = 0
[ 74.915238][ T5116] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 74.927973][ T5116] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/6/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./6/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./6/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./6/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./6") = 0
mkdir("./7", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 74.995715][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5119 attached
, child_tidptr=0x55556068d650) = 5119
[pid 5119] set_robust_list(0x55556068d660, 24) = 0
[pid 5119] chdir("./7") = 0
[pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5119] setpgid(0, 0) = 0
[pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5119] write(3, "1000", 4) = 4
[pid 5119] close(3) = 0
[pid 5119] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 5119] write(1, "executing program\n", 18) = 18
[pid 5119] memfd_create("syzkaller", 0) = 3
[pid 5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5119] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5119] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5119] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5119] close(3) = 0
[pid 5119] close(4) = 0
[pid 5119] mkdir("./file1", 0777) = 0
[ 75.188634][ T5119] loop0: detected capacity change from 0 to 512
[pid 5119] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5119] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5119] chdir("./file1") = 0
[pid 5119] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5119] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5119] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5119] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5119] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[ 75.229006][ T5119] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 75.241889][ T5119] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/7/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5119] exit_group(0) = ?
[pid 5119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./7/binderfs") = 0
umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./7/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./7/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./7/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./7") = 0
mkdir("./8", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 75.333326][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5122 attached
, child_tidptr=0x55556068d650) = 5122
[pid 5122] set_robust_list(0x55556068d660, 24) = 0
[pid 5122] chdir("./8") = 0
[pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5122] setpgid(0, 0) = 0
[pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5122] write(3, "1000", 4) = 4
[pid 5122] close(3) = 0
[pid 5122] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5122] write(1, "executing program\n", 18) = 18
[pid 5122] memfd_create("syzkaller", 0) = 3
[pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5122] mkdir("./file1", 0777) = 0
[ 75.491012][ T5122] loop0: detected capacity change from 0 to 512
[pid 5122] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5122] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5122] chdir("./file1") = 0
[pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5122] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5122] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5122] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5122] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./8/binderfs") = 0
[ 75.545484][ T5122] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 75.558047][ T5122] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/8/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./8/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./8/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./8/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./8") = 0
mkdir("./9", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 75.609969][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5125 attached
, child_tidptr=0x55556068d650) = 5125
[pid 5125] set_robust_list(0x55556068d660, 24) = 0
[pid 5125] chdir("./9") = 0
[pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5125] setpgid(0, 0) = 0
[pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5125] write(3, "1000", 4) = 4
[pid 5125] close(3) = 0
[pid 5125] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5125] write(1, "executing program\n", 18) = 18
[pid 5125] memfd_create("syzkaller", 0) = 3
[pid 5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5125] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5125] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5125] close(3) = 0
[pid 5125] close(4) = 0
[pid 5125] mkdir("./file1", 0777) = 0
[ 75.792868][ T5125] loop0: detected capacity change from 0 to 512
[pid 5125] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5125] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5125] chdir("./file1") = 0
[pid 5125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5125] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5125] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5125] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5125] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5125] exit_group(0) = ?
[ 75.836099][ T5125] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 75.848796][ T5125] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/9/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./9/binderfs") = 0
umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./9/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./9/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./9/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./9") = 0
mkdir("./10", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 75.921463][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5129 attached
, child_tidptr=0x55556068d650) = 5129
[pid 5129] set_robust_list(0x55556068d660, 24) = 0
[pid 5129] chdir("./10") = 0
[pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5129] setpgid(0, 0) = 0
[pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5129] write(3, "1000", 4) = 4
[pid 5129] close(3) = 0
[pid 5129] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5129] write(1, "executing program\n", 18executing program
) = 18
[pid 5129] memfd_create("syzkaller", 0) = 3
[pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5129] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5129] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5129] close(3) = 0
[pid 5129] close(4) = 0
[pid 5129] mkdir("./file1", 0777) = 0
[ 76.099650][ T5129] loop0: detected capacity change from 0 to 512
[pid 5129] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5129] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5129] chdir("./file1") = 0
[pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5129] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5129] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5129] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[ 76.155542][ T5129] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 76.168339][ T5129] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/10/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5129] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5129] exit_group(0) = ?
[pid 5129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./10/binderfs") = 0
umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./10/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./10/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./10/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./10") = 0
mkdir("./11", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 76.264193][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5132 attached
, child_tidptr=0x55556068d650) = 5132
[pid 5132] set_robust_list(0x55556068d660, 24) = 0
[pid 5132] chdir("./11") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5132] memfd_create("syzkaller", 0) = 3
[pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5132] close(3) = 0
[pid 5132] close(4) = 0
[pid 5132] mkdir("./file1", 0777) = 0
[ 76.392077][ T5132] loop0: detected capacity change from 0 to 512
[pid 5132] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5132] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5132] chdir("./file1") = 0
[pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5132] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5132] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5132] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5132] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 76.445813][ T5132] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 76.458571][ T5132] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/11/file1 supports timestamps until 2038-01-19 (0x7fffffff)
newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./11/binderfs") = 0
umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./11/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./11/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./11/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./11") = 0
mkdir("./12", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 76.522826][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5135 attached
, child_tidptr=0x55556068d650) = 5135
[pid 5135] set_robust_list(0x55556068d660, 24) = 0
[pid 5135] chdir("./12") = 0
[pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5135] setpgid(0, 0) = 0
[pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5135] write(3, "1000", 4) = 4
[pid 5135] close(3) = 0
[pid 5135] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5135] write(1, "executing program\n", 18executing program
) = 18
[pid 5135] memfd_create("syzkaller", 0) = 3
[pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5135] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5135] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5135] close(3) = 0
[pid 5135] close(4) = 0
[pid 5135] mkdir("./file1", 0777) = 0
[ 76.710178][ T5135] loop0: detected capacity change from 0 to 512
[pid 5135] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5135] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5135] chdir("./file1") = 0
[pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5135] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5135] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5135] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5135] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5135] exit_group(0) = ?
[ 76.759885][ T5135] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 76.772477][ T5135] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/12/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./12/binderfs") = 0
umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./12/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./12/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./12/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
[ 76.845122][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5138 attached
, child_tidptr=0x55556068d650) = 5138
[pid 5138] set_robust_list(0x55556068d660, 24) = 0
[pid 5138] chdir("./13") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5138] memfd_create("syzkaller", 0) = 3
[pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5138] mkdir("./file1", 0777) = 0
[ 76.986655][ T5138] loop0: detected capacity change from 0 to 512
[pid 5138] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5138] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5138] chdir("./file1") = 0
[pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5138] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5138] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5138] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5138] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5138] exit_group(0) = ?
[ 77.035333][ T5138] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 77.048126][ T5138] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/13/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[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=7 /* 0.07 s */} ---
umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./13/binderfs") = 0
umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./13/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./13/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./13/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./13") = 0
mkdir("./14", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 77.184039][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5141 attached
<unfinished ...>
[pid 5141] set_robust_list(0x55556068d660, 24 <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5141
[pid 5141] <... set_robust_list resumed>) = 0
[pid 5141] chdir("./14") = 0
[pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5141] setpgid(0, 0) = 0
[pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5141] write(3, "1000", 4) = 4
[pid 5141] close(3) = 0
[pid 5141] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5141] write(1, "executing program\n", 18) = 18
[pid 5141] memfd_create("syzkaller", 0) = 3
[pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5141] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5141] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5141] close(3) = 0
[pid 5141] close(4) = 0
[pid 5141] mkdir("./file1", 0777) = 0
[ 77.323142][ T5141] loop0: detected capacity change from 0 to 512
[pid 5141] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5141] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5141] chdir("./file1") = 0
[pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 77.377876][ T5141] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 77.390781][ T5141] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/14/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5141] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5141] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5141] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5141] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5141] exit_group(0) = ?
[pid 5141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./14/binderfs") = 0
umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./14/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./14/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./14/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
[ 77.489664][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5144 attached
, child_tidptr=0x55556068d650) = 5144
[pid 5144] set_robust_list(0x55556068d660, 24) = 0
[pid 5144] chdir("./15") = 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
executing program
[pid 5144] write(1, "executing program\n", 18) = 18
[pid 5144] memfd_create("syzkaller", 0) = 3
[pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5144] mkdir("./file1", 0777) = 0
[ 77.618574][ T5144] loop0: detected capacity change from 0 to 512
[ 77.656056][ T5144] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[pid 5144] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5144] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5144] chdir("./file1") = 0
[pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5144] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5144] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5144] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5144] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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 */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 77.668909][ T5144] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/15/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./15/binderfs") = 0
umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./15/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./15/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
[ 77.778610][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
rmdir("./15/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5148 attached
, child_tidptr=0x55556068d650) = 5148
[pid 5148] set_robust_list(0x55556068d660, 24) = 0
[pid 5148] chdir("./16") = 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
[pid 5148] close(3) = 0
[pid 5148] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5148] write(1, "executing program\n", 18) = 18
[pid 5148] memfd_create("syzkaller", 0) = 3
[pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5148] mkdir("./file1", 0777) = 0
[ 77.999040][ T5148] loop0: detected capacity change from 0 to 512
[pid 5148] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5148] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5148] chdir("./file1") = 0
[pid 5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5148] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5148] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5148] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5148] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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 */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 78.045667][ T5148] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 78.058433][ T5148] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/16/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./16/binderfs") = 0
umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./16/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./16/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./16/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./16") = 0
mkdir("./17", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 78.124085][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5151 attached
, child_tidptr=0x55556068d650) = 5151
[pid 5151] set_robust_list(0x55556068d660, 24) = 0
[pid 5151] chdir("./17") = 0
[pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5151] setpgid(0, 0) = 0
[pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5151] write(3, "1000", 4) = 4
[pid 5151] close(3) = 0
[pid 5151] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5151] write(1, "executing program\n", 18executing program
) = 18
[pid 5151] memfd_create("syzkaller", 0) = 3
[pid 5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5151] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5151] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5151] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5151] close(3) = 0
[pid 5151] close(4) = 0
[pid 5151] mkdir("./file1", 0777) = 0
[ 78.299917][ T5151] loop0: detected capacity change from 0 to 512
[ 78.335104][ T5151] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[pid 5151] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5151] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5151] chdir("./file1") = 0
[pid 5151] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5151] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5151] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5151] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5151] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5151] exit_group(0) = ?
[pid 5151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./17/binderfs") = 0
[ 78.347844][ T5151] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/17/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./17/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./17/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
[ 78.411264][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
rmdir("./17/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5154 attached
, child_tidptr=0x55556068d650) = 5154
[pid 5154] set_robust_list(0x55556068d660, 24) = 0
[pid 5154] chdir("./18") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5154] memfd_create("syzkaller", 0) = 3
[pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5154] mkdir("./file1", 0777) = 0
[ 78.613791][ T5154] loop0: detected capacity change from 0 to 512
[pid 5154] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5154] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5154] chdir("./file1") = 0
[pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5154] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5154] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5154] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5154] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 78.655736][ T5154] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 78.668569][ T5154] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/18/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./18/binderfs") = 0
umount2("./18/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./18/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./18/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./18/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./18/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./18") = 0
mkdir("./19", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 78.771657][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5157 attached
, child_tidptr=0x55556068d650) = 5157
[pid 5157] set_robust_list(0x55556068d660, 24) = 0
[pid 5157] chdir("./19") = 0
[pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5157] setpgid(0, 0) = 0
[pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5157] write(3, "1000", 4) = 4
[pid 5157] close(3) = 0
[pid 5157] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5157] write(1, "executing program\n", 18) = 18
[pid 5157] memfd_create("syzkaller", 0) = 3
[pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5157] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5157] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5157] close(3) = 0
[pid 5157] close(4) = 0
[pid 5157] mkdir("./file1", 0777) = 0
[pid 5157] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5157] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5157] chdir("./file1") = 0
[pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 78.917715][ T5157] loop0: detected capacity change from 0 to 512
[ 78.947652][ T5157] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[pid 5157] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5157] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5157] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5157] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5157] exit_group(0) = ?
[pid 5157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 78.960489][ T5157] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/19/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./19/binderfs") = 0
umount2("./19/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./19/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./19/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./19/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./19/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./19") = 0
mkdir("./20", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 79.047500][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5160 attached
<unfinished ...>
[pid 5160] set_robust_list(0x55556068d660, 24 <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5160
[pid 5160] <... set_robust_list resumed>) = 0
[pid 5160] chdir("./20") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5160] memfd_create("syzkaller", 0) = 3
[pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5160] mkdir("./file1", 0777) = 0
[ 79.211675][ T5160] loop0: detected capacity change from 0 to 512
[pid 5160] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5160] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5160] chdir("./file1") = 0
[pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5160] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5160] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5160] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5160] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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 */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 79.275954][ T5160] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 79.288545][ T5160] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/20/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./20/binderfs") = 0
umount2("./20/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./20/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./20/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./20/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./20/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./20") = 0
mkdir("./21", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 79.354321][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5163 attached
<unfinished ...>
[pid 5163] set_robust_list(0x55556068d660, 24) = 0
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5163
[pid 5163] chdir("./21") = 0
[pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5163] setpgid(0, 0) = 0
[pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5163] write(3, "1000", 4) = 4
[pid 5163] close(3) = 0
[pid 5163] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5163] write(1, "executing program\n", 18) = 18
[pid 5163] memfd_create("syzkaller", 0) = 3
[pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5163] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5163] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5163] close(3) = 0
[pid 5163] close(4) = 0
[pid 5163] mkdir("./file1", 0777) = 0
[ 79.532286][ T5163] loop0: detected capacity change from 0 to 512
[pid 5163] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5163] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5163] chdir("./file1") = 0
[pid 5163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5163] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5163] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5163] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5163] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5163] exit_group(0) = ?
[pid 5163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./21/binderfs") = 0
[ 79.575448][ T5163] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 79.588052][ T5163] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/21/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./21/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./21/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./21/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./21/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./21/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
[ 79.646855][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
rmdir("./21") = 0
mkdir("./22", 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 5166 attached
, child_tidptr=0x55556068d650) = 5166
[pid 5166] set_robust_list(0x55556068d660, 24) = 0
[pid 5166] chdir("./22") = 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
[pid 5166] write(3, "1000", 4) = 4
[pid 5166] close(3) = 0
[pid 5166] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5166] write(1, "executing program\n", 18) = 18
[pid 5166] memfd_create("syzkaller", 0) = 3
[pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5166] mkdir("./file1", 0777) = 0
[ 79.841570][ T5166] loop0: detected capacity change from 0 to 512
[ 79.879153][ T5166] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[pid 5166] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5166] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5166] chdir("./file1") = 0
[pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5166] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5166] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5166] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5166] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=3 /* 0.03 s */} ---
umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 79.891717][ T5166] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/22/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./22/binderfs") = 0
umount2("./22/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./22/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./22/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./22/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
[ 79.987711][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
close(4) = 0
rmdir("./22/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached
, child_tidptr=0x55556068d650) = 5169
[pid 5169] set_robust_list(0x55556068d660, 24) = 0
[pid 5169] chdir("./23") = 0
[pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5169] setpgid(0, 0) = 0
[pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5169] write(3, "1000", 4) = 4
[pid 5169] close(3) = 0
[pid 5169] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5169] write(1, "executing program\n", 18) = 18
[pid 5169] memfd_create("syzkaller", 0) = 3
[pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5169] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5169] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5169] close(3) = 0
[pid 5169] close(4) = 0
[pid 5169] mkdir("./file1", 0777) = 0
[ 80.211922][ T5169] loop0: detected capacity change from 0 to 512
[pid 5169] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5169] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5169] chdir("./file1") = 0
[pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5169] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5169] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5169] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5169] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5169] exit_group(0) = ?
[pid 5169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./23/binderfs") = 0
[ 80.255301][ T5169] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 80.268528][ T5169] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/23/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./23/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./23/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./23/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./23/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./23/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./23") = 0
mkdir("./24", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 80.328579][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5172 attached
, child_tidptr=0x55556068d650) = 5172
[pid 5172] set_robust_list(0x55556068d660, 24) = 0
[pid 5172] chdir("./24") = 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
executing program
[pid 5172] write(1, "executing program\n", 18) = 18
[pid 5172] memfd_create("syzkaller", 0) = 3
[pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5172] mkdir("./file1", 0777) = 0
[ 80.484036][ T5172] loop0: detected capacity change from 0 to 512
[pid 5172] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5172] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5172] chdir("./file1") = 0
[pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5172] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5172] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5172] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5172] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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 */} ---
[ 80.535572][ T5172] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 80.548406][ T5172] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/24/file1 supports timestamps until 2038-01-19 (0x7fffffff)
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./24/binderfs") = 0
umount2("./24/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./24/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./24/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./24/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./24/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./24") = 0
mkdir("./25", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 80.648994][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5175 attached
, child_tidptr=0x55556068d650) = 5175
[pid 5175] set_robust_list(0x55556068d660, 24) = 0
[pid 5175] chdir("./25") = 0
[pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5175] setpgid(0, 0) = 0
[pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5175] write(3, "1000", 4) = 4
[pid 5175] close(3) = 0
[pid 5175] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5175] write(1, "executing program\n", 18) = 18
[pid 5175] memfd_create("syzkaller", 0) = 3
[pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid 5175] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5175] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5175] close(3) = 0
[pid 5175] close(4) = 0
[pid 5175] mkdir("./file1", 0777) = 0
[ 80.844672][ T5175] loop0: detected capacity change from 0 to 512
[pid 5175] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5175] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5175] chdir("./file1") = 0
[pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5175] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5175] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5175] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5175] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5175] exit_group(0) = ?
[pid 5175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./25/binderfs") = 0
[ 80.895032][ T5175] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 80.907615][ T5175] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/25/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./25/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./25/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./25/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./25/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./25/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./25") = 0
mkdir("./26", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 80.959300][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556068d650) = 5178
./strace-static-x86_64: Process 5178 attached
[pid 5178] set_robust_list(0x55556068d660, 24) = 0
[pid 5178] chdir("./26") = 0
[pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5178] setpgid(0, 0) = 0
[pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5178] write(3, "1000", 4) = 4
[pid 5178] close(3) = 0
[pid 5178] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5178] write(1, "executing program\n", 18) = 18
[pid 5178] memfd_create("syzkaller", 0) = 3
[pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5178] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5178] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5178] close(3) = 0
[pid 5178] close(4) = 0
[pid 5178] mkdir("./file1", 0777) = 0
[ 81.121010][ T5178] loop0: detected capacity change from 0 to 512
[pid 5178] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5178] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5178] chdir("./file1") = 0
[pid 5178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5178] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[ 81.165826][ T5178] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 81.178428][ T5178] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/26/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5178] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5178] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5178] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5178] exit_group(0) = ?
[pid 5178] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./26/binderfs") = 0
umount2("./26/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./26/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./26/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./26/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 81.332901][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./26/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556068d650) = 5182
./strace-static-x86_64: Process 5182 attached
[pid 5182] set_robust_list(0x55556068d660, 24) = 0
[pid 5182] chdir("./27") = 0
[pid 5182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5182] setpgid(0, 0) = 0
[pid 5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5182] write(3, "1000", 4) = 4
[pid 5182] close(3) = 0
executing program
[pid 5182] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5182] write(1, "executing program\n", 18) = 18
[pid 5182] memfd_create("syzkaller", 0) = 3
[pid 5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5182] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5182] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5182] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5182] close(3) = 0
[pid 5182] close(4) = 0
[pid 5182] mkdir("./file1", 0777) = 0
[ 81.613204][ T5182] loop0: detected capacity change from 0 to 512
[pid 5182] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5182] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5182] chdir("./file1") = 0
[pid 5182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5182] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5182] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[ 81.659480][ T5182] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 81.672098][ T5182] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/27/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5182] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5182] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5182] exit_group(0) = ?
[pid 5182] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./27/binderfs") = 0
umount2("./27/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./27/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./27/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./27/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./27/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./27") = 0
mkdir("./28", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 81.778282][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5185 attached
, child_tidptr=0x55556068d650) = 5185
[pid 5185] set_robust_list(0x55556068d660, 24) = 0
[pid 5185] chdir("./28") = 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
executing program
[pid 5185] write(1, "executing program\n", 18) = 18
[pid 5185] memfd_create("syzkaller", 0) = 3
[pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5185] mkdir("./file1", 0777) = 0
[ 81.931078][ T5185] loop0: detected capacity change from 0 to 512
[pid 5185] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5185] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5185] chdir("./file1") = 0
[pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5185] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5185] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5185] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5185] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5185] exit_group(0) = ?
[ 81.975191][ T5185] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 81.987945][ T5185] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/28/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[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=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./28/binderfs") = 0
umount2("./28/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./28/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./28/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./28/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./28/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./28") = 0
mkdir("./29", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 82.065659][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5188 attached
, child_tidptr=0x55556068d650) = 5188
[pid 5188] set_robust_list(0x55556068d660, 24) = 0
[pid 5188] chdir("./29") = 0
[pid 5188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5188] setpgid(0, 0) = 0
[pid 5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5188] write(3, "1000", 4) = 4
[pid 5188] close(3) = 0
[pid 5188] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5188] write(1, "executing program\n", 18executing program
) = 18
[pid 5188] memfd_create("syzkaller", 0) = 3
[pid 5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5188] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5188] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5188] close(3) = 0
[pid 5188] close(4) = 0
[pid 5188] mkdir("./file1", 0777) = 0
[ 82.242202][ T5188] loop0: detected capacity change from 0 to 512
[pid 5188] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5188] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5188] chdir("./file1") = 0
[pid 5188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 82.305822][ T5188] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 82.318442][ T5188] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/29/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5188] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5188] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5188] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5188] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5188] exit_group(0) = ?
[pid 5188] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./29/binderfs") = 0
umount2("./29/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./29/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./29/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./29/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./29/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./29") = 0
mkdir("./30", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 82.453074][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5191 attached
, child_tidptr=0x55556068d650) = 5191
[pid 5191] set_robust_list(0x55556068d660, 24) = 0
[pid 5191] chdir("./30") = 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
executing program
[pid 5191] write(1, "executing program\n", 18) = 18
[pid 5191] memfd_create("syzkaller", 0) = 3
[pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5191] mkdir("./file1", 0777) = 0
[ 82.605359][ T5191] loop0: detected capacity change from 0 to 512
[pid 5191] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5191] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5191] chdir("./file1") = 0
[pid 5191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5191] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5191] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5191] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5191] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5191] exit_group(0) = ?
[ 82.665461][ T5191] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 82.678261][ T5191] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/30/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[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 */} ---
umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./30/binderfs") = 0
umount2("./30/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./30/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./30/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./30/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./30/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./30") = 0
mkdir("./31", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 82.777035][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5194 attached
, child_tidptr=0x55556068d650) = 5194
[pid 5194] set_robust_list(0x55556068d660, 24) = 0
[pid 5194] chdir("./31") = 0
[pid 5194] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5194] setpgid(0, 0) = 0
[pid 5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5194] write(3, "1000", 4) = 4
[pid 5194] close(3) = 0
[pid 5194] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5194] write(1, "executing program\n", 18) = 18
[pid 5194] memfd_create("syzkaller", 0) = 3
[pid 5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5194] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5194] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5194] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5194] close(3) = 0
[pid 5194] close(4) = 0
[pid 5194] mkdir("./file1", 0777) = 0
[ 82.969165][ T5194] loop0: detected capacity change from 0 to 512
[pid 5194] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5194] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5194] chdir("./file1") = 0
[pid 5194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5194] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5194] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5194] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5194] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5194] exit_group(0) = ?
[pid 5194] +++ exited with 0 +++
[ 83.025257][ T5194] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 83.037862][ T5194] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/31/file1 supports timestamps until 2038-01-19 (0x7fffffff)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./31/binderfs") = 0
umount2("./31/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./31/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./31/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./31/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./31/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./31") = 0
mkdir("./32", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 83.117745][ T5094] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
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 5197 attached
, child_tidptr=0x55556068d650) = 5197
[pid 5197] set_robust_list(0x55556068d660, 24) = 0
[pid 5197] chdir("./32") = 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
executing program
[pid 5197] write(1, "executing program\n", 18) = 18
[pid 5197] memfd_create("syzkaller", 0) = 3
[pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5197] mkdir("./file1", 0777) = 0
[ 83.341118][ T5197] loop0: detected capacity change from 0 to 512
[pid 5197] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5197] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5197] chdir("./file1") = 0
[pid 5197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5197] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5197] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5197] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5197] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./32/binderfs") = 0
[ 83.395461][ T5197] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/32/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./32/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./32/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./32/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./32/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./32/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5200 attached
<unfinished ...>
[pid 5200] set_robust_list(0x55556068d660, 24) = 0
[pid 5200] chdir("./33" <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5200
[pid 5200] <... chdir resumed>) = 0
[pid 5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5200] setpgid(0, 0) = 0
[pid 5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5200] write(3, "1000", 4) = 4
[pid 5200] close(3) = 0
[pid 5200] symlink("/dev/binderfs", "./binderfs"executing program
) = 0
[pid 5200] write(1, "executing program\n", 18) = 18
[pid 5200] memfd_create("syzkaller", 0) = 3
[pid 5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5200] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5200] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5200] close(3) = 0
[pid 5200] close(4) = 0
[pid 5200] mkdir("./file1", 0777) = 0
[pid 5200] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5200] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5200] chdir("./file1") = 0
[pid 5200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5200] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5200] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5200] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[ 83.624404][ T5200] loop0: detected capacity change from 0 to 512
[ 83.657785][ T5200] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/33/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5200] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5200] exit_group(0) = ?
[pid 5200] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./33/binderfs") = 0
umount2("./33/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./33/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./33/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./33/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./33/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5203 attached
<unfinished ...>
[pid 5203] set_robust_list(0x55556068d660, 24) = 0
[pid 5203] chdir("./34") = 0
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5203
[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
executing program
[pid 5203] write(1, "executing program\n", 18) = 18
[pid 5203] memfd_create("syzkaller", 0) = 3
[pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5203] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5203] close(3) = 0
[pid 5203] close(4) = 0
[pid 5203] mkdir("./file1", 0777) = 0
[ 83.909152][ T5203] loop0: detected capacity change from 0 to 512
[pid 5203] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5203] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5203] chdir("./file1") = 0
[pid 5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5203] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5203] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5203] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5203] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5203] exit_group(0) = ?
[ 83.965375][ T5203] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/34/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[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=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./34/binderfs") = 0
umount2("./34/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./34/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./34/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./34/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./34/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5206 attached
, child_tidptr=0x55556068d650) = 5206
[pid 5206] set_robust_list(0x55556068d660, 24) = 0
[pid 5206] chdir("./35") = 0
[pid 5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5206] setpgid(0, 0) = 0
[pid 5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5206] write(3, "1000", 4) = 4
[pid 5206] close(3) = 0
[pid 5206] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5206] write(1, "executing program\n", 18) = 18
[pid 5206] memfd_create("syzkaller", 0) = 3
[pid 5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5206] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5206] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5206] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5206] close(3) = 0
[pid 5206] close(4) = 0
[pid 5206] mkdir("./file1", 0777) = 0
[ 84.239741][ T5206] loop0: detected capacity change from 0 to 512
[pid 5206] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5206] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5206] chdir("./file1") = 0
[pid 5206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5206] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5206] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5206] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5206] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5206] exit_group(0) = ?
[pid 5206] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./35/binderfs") = 0
[ 84.285132][ T5206] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/35/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./35/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./35/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./35/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./35/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./35/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5209 attached
, child_tidptr=0x55556068d650) = 5209
[pid 5209] set_robust_list(0x55556068d660, 24) = 0
[pid 5209] chdir("./36") = 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
executing program
[pid 5209] write(1, "executing program\n", 18) = 18
[pid 5209] memfd_create("syzkaller", 0) = 3
[pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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
[pid 5209] munmap(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5209] mkdir("./file1", 0777) = 0
[ 84.520893][ T5209] loop0: detected capacity change from 0 to 512
[pid 5209] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5209] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5209] chdir("./file1") = 0
[pid 5209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5209] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5209] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5209] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5209] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=3 /* 0.03 s */} ---
umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[ 84.576426][ T5209] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/36/file1 supports timestamps until 2038-01-19 (0x7fffffff)
newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./36/binderfs") = 0
umount2("./36/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./36/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./36/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./36/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./36/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5212 attached
, child_tidptr=0x55556068d650) = 5212
[pid 5212] set_robust_list(0x55556068d660, 24) = 0
[pid 5212] chdir("./37") = 0
[pid 5212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5212] setpgid(0, 0) = 0
[pid 5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5212] write(3, "1000", 4) = 4
[pid 5212] close(3) = 0
[pid 5212] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5212] write(1, "executing program\n", 18executing program
) = 18
[pid 5212] memfd_create("syzkaller", 0) = 3
[pid 5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5212] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5212] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5212] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5212] close(3) = 0
[pid 5212] close(4) = 0
[pid 5212] mkdir("./file1", 0777) = 0
[ 84.853258][ T5212] loop0: detected capacity change from 0 to 512
[pid 5212] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5212] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5212] chdir("./file1") = 0
[pid 5212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5212] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5212] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5212] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5212] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5212] exit_group(0) = ?
[pid 5212] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./37/binderfs") = 0
umount2("./37/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./37/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./37/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[ 84.895680][ T5212] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/37/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./37/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./37/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5216 attached
, child_tidptr=0x55556068d650) = 5216
[pid 5216] set_robust_list(0x55556068d660, 24) = 0
[pid 5216] chdir("./38") = 0
[pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5216] setpgid(0, 0) = 0
[pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5216] write(3, "1000", 4) = 4
[pid 5216] close(3) = 0
[pid 5216] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5216] write(1, "executing program\n", 18) = 18
[pid 5216] memfd_create("syzkaller", 0) = 3
[pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5216] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5216] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5216] close(3) = 0
[pid 5216] close(4) = 0
[pid 5216] mkdir("./file1", 0777) = 0
[ 85.123178][ T5216] loop0: detected capacity change from 0 to 512
[pid 5216] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5216] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5216] chdir("./file1") = 0
[pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5216] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5216] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5216] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5216] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5216] exit_group(0) = ?
[pid 5216] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
[ 85.165518][ T5216] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/38/file1 supports timestamps until 2038-01-19 (0x7fffffff)
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./38/binderfs") = 0
umount2("./38/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./38/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./38/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./38/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./38/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./38") = 0
mkdir("./39", 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 5219 attached
, child_tidptr=0x55556068d650) = 5219
[pid 5219] set_robust_list(0x55556068d660, 24) = 0
[pid 5219] chdir("./39") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5219] memfd_create("syzkaller", 0) = 3
[pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5219] mkdir("./file1", 0777) = 0
[ 85.481390][ T5219] loop0: detected capacity change from 0 to 512
[pid 5219] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5219] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5219] chdir("./file1") = 0
[pid 5219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5219] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5219] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5219] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5219] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=1 /* 0.01 s */} ---
umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./39/binderfs") = 0
[ 85.525254][ T5219] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/39/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./39/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./39/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./39/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./39/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./39/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./39") = 0
mkdir("./40", 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 5222 attached
, child_tidptr=0x55556068d650) = 5222
[pid 5222] set_robust_list(0x55556068d660, 24) = 0
[pid 5222] chdir("./40") = 0
[pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5222] setpgid(0, 0) = 0
[pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5222] write(3, "1000", 4) = 4
[pid 5222] close(3) = 0
[pid 5222] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5222] write(1, "executing program\n", 18executing program
) = 18
[pid 5222] memfd_create("syzkaller", 0) = 3
[pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5222] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5222] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5222] close(3) = 0
[pid 5222] close(4) = 0
[pid 5222] mkdir("./file1", 0777) = 0
[pid 5222] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5222] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5222] chdir("./file1") = 0
[pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5222] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5222] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5222] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5222] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5222] exit_group(0) = ?
[pid 5222] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5222, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 85.771279][ T5222] loop0: detected capacity change from 0 to 512
[ 85.806052][ T5222] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/40/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./40/binderfs") = 0
umount2("./40/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./40/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./40/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./40/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./40/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5225 attached
<unfinished ...>
[pid 5225] set_robust_list(0x55556068d660, 24 <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5225
[pid 5225] <... set_robust_list resumed>) = 0
[pid 5225] chdir("./41") = 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
executing program
[pid 5225] write(1, "executing program\n", 18) = 18
[pid 5225] memfd_create("syzkaller", 0) = 3
[pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5225] mkdir("./file1", 0777) = 0
[pid 5225] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5225] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5225] chdir("./file1") = 0
[pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 86.005838][ T5225] loop0: detected capacity change from 0 to 512
[pid 5225] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5225] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5225] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5225] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=5 /* 0.05 s */} ---
umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./41/binderfs") = 0
[ 86.045280][ T5225] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/41/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./41/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./41/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./41/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./41/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./41/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5228 attached
, child_tidptr=0x55556068d650) = 5228
[pid 5228] set_robust_list(0x55556068d660, 24) = 0
[pid 5228] chdir("./42") = 0
[pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5228] setpgid(0, 0) = 0
[pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5228] write(3, "1000", 4) = 4
[pid 5228] close(3) = 0
[pid 5228] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5228] write(1, "executing program\n", 18) = 18
[pid 5228] memfd_create("syzkaller", 0) = 3
[pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5228] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5228] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5228] close(3) = 0
[pid 5228] close(4) = 0
[pid 5228] mkdir("./file1", 0777) = 0
[ 86.284098][ T5228] loop0: detected capacity change from 0 to 512
[ 86.313004][ T779] cfg80211: failed to load regulatory.db
[pid 5228] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5228] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5228] chdir("./file1") = 0
[pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5228] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[ 86.348280][ T5228] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/42/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5228] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5228] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5228] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5228] exit_group(0) = ?
[pid 5228] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./42/binderfs") = 0
umount2("./42/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./42/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./42/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./42/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./42/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5232 attached
<unfinished ...>
[pid 5232] set_robust_list(0x55556068d660, 24 <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5232
[pid 5232] <... set_robust_list resumed>) = 0
[pid 5232] chdir("./43") = 0
[pid 5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5232] setpgid(0, 0) = 0
[pid 5232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5232] write(3, "1000", 4) = 4
[pid 5232] close(3) = 0
[pid 5232] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5232] write(1, "executing program\n", 18) = 18
[pid 5232] memfd_create("syzkaller", 0) = 3
[pid 5232] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5232] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5232] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5232] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5232] close(3) = 0
[pid 5232] close(4) = 0
[pid 5232] mkdir("./file1", 0777) = 0
[ 86.671860][ T5232] loop0: detected capacity change from 0 to 512
[pid 5232] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5232] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5232] chdir("./file1") = 0
[pid 5232] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5232] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5232] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5232] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5232] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5232] exit_group(0) = ?
[pid 5232] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
[ 86.725157][ T5232] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/43/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./43/binderfs") = 0
umount2("./43/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./43/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./43/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./43/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./43/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5235 attached
<unfinished ...>
[pid 5235] set_robust_list(0x55556068d660, 24) = 0
[pid 5235] chdir("./44") = 0
[pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5235
[pid 5235] <... prctl resumed>) = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5235] memfd_create("syzkaller", 0) = 3
[pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5235] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5235] close(3) = 0
[pid 5235] close(4) = 0
[pid 5235] mkdir("./file1", 0777) = 0
[ 86.982545][ T5235] loop0: detected capacity change from 0 to 512
[pid 5235] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5235] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5235] chdir("./file1") = 0
[pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5235] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5235] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5235] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5235] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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 */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./44/binderfs") = 0
[ 87.026175][ T5235] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/44/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./44/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./44/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./44/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./44/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./44/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./44") = 0
mkdir("./45", 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 5238 attached
, child_tidptr=0x55556068d650) = 5238
[pid 5238] set_robust_list(0x55556068d660, 24) = 0
[pid 5238] chdir("./45") = 0
[pid 5238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5238] setpgid(0, 0) = 0
[pid 5238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5238] write(3, "1000", 4) = 4
[pid 5238] close(3) = 0
[pid 5238] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5238] write(1, "executing program\n", 18executing program
) = 18
[pid 5238] memfd_create("syzkaller", 0) = 3
[pid 5238] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5238] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5238] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5238] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5238] close(3) = 0
[pid 5238] close(4) = 0
[pid 5238] mkdir("./file1", 0777) = 0
[ 87.254833][ T5238] loop0: detected capacity change from 0 to 512
[pid 5238] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5238] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5238] chdir("./file1") = 0
[pid 5238] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5238] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5238] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5238] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5238] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5238] exit_group(0) = ?
[pid 5238] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5238, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 87.306375][ T5238] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/45/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./45/binderfs") = 0
umount2("./45/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./45/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./45/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./45/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./45/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5242 attached
, child_tidptr=0x55556068d650) = 5242
[pid 5242] set_robust_list(0x55556068d660, 24) = 0
[pid 5242] chdir("./46") = 0
[pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5242] setpgid(0, 0) = 0
[pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5242] write(3, "1000", 4) = 4
[pid 5242] close(3) = 0
[pid 5242] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5242] write(1, "executing program\n", 18) = 18
[pid 5242] memfd_create("syzkaller", 0) = 3
[pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5242] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5242] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5242] close(3) = 0
[pid 5242] close(4) = 0
[pid 5242] mkdir("./file1", 0777) = 0
[ 87.562592][ T5242] loop0: detected capacity change from 0 to 512
[pid 5242] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5242] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5242] chdir("./file1") = 0
[pid 5242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5242] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5242] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5242] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5242] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5242] exit_group(0) = ?
[pid 5242] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5242, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./46/binderfs") = 0
umount2("./46/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./46/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./46/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
[ 87.615343][ T5242] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/46/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./46/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./46/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5245 attached
, child_tidptr=0x55556068d650) = 5245
[pid 5245] set_robust_list(0x55556068d660, 24) = 0
[pid 5245] chdir("./47") = 0
[pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5245] setpgid(0, 0) = 0
[pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5245] write(3, "1000", 4) = 4
[pid 5245] close(3) = 0
[pid 5245] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5245] write(1, "executing program\n", 18executing program
) = 18
[pid 5245] memfd_create("syzkaller", 0) = 3
[pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5245] mkdir("./file1", 0777) = 0
[ 87.815280][ T5245] loop0: detected capacity change from 0 to 512
[pid 5245] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5245] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5245] chdir("./file1") = 0
[pid 5245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5245] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5245] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5245] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5245] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 87.855807][ T5245] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/47/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./47/binderfs") = 0
umount2("./47/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./47/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./47/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./47/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./47/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5248 attached
, child_tidptr=0x55556068d650) = 5248
[pid 5248] set_robust_list(0x55556068d660, 24) = 0
[pid 5248] chdir("./48") = 0
[pid 5248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5248] setpgid(0, 0) = 0
[pid 5248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5248] write(3, "1000", 4) = 4
[pid 5248] close(3) = 0
[pid 5248] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5248] write(1, "executing program\n", 18executing program
) = 18
[pid 5248] memfd_create("syzkaller", 0) = 3
[pid 5248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5248] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5248] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5248] close(3) = 0
[pid 5248] close(4) = 0
[pid 5248] mkdir("./file1", 0777) = 0
[pid 5248] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5248] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[ 88.138665][ T5248] loop0: detected capacity change from 0 to 512
[pid 5248] chdir("./file1") = 0
[pid 5248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5248] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5248] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5248] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5248] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5248] exit_group(0) = ?
[pid 5248] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5248, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 88.177743][ T5248] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/48/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./48/binderfs") = 0
umount2("./48/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./48/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./48/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./48/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./48/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5251 attached
<unfinished ...>
[pid 5251] set_robust_list(0x55556068d660, 24) = 0
[pid 5251] chdir("./49" <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5251
[pid 5251] <... chdir resumed>) = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5251] memfd_create("syzkaller", 0) = 3
[pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5251] mkdir("./file1", 0777) = 0
[ 88.427954][ T5251] loop0: detected capacity change from 0 to 512
[pid 5251] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5251] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5251] chdir("./file1") = 0
[pid 5251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5251] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5251] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5251] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5251] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./49/binderfs") = 0
[ 88.471497][ T5251] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/49/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./49/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./49/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./49/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./49/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./49/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5254 attached
, child_tidptr=0x55556068d650) = 5254
[pid 5254] set_robust_list(0x55556068d660, 24) = 0
[pid 5254] chdir("./50") = 0
[pid 5254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5254] setpgid(0, 0) = 0
[pid 5254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5254] write(3, "1000", 4) = 4
[pid 5254] close(3) = 0
[pid 5254] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5254] write(1, "executing program\n", 18) = 18
[pid 5254] memfd_create("syzkaller", 0) = 3
[pid 5254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5254] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5254] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5254] close(3) = 0
[pid 5254] close(4) = 0
[pid 5254] mkdir("./file1", 0777) = 0
[pid 5254] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5254] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5254] chdir("./file1") = 0
[pid 5254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5254] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5254] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5254] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[ 88.699559][ T5254] loop0: detected capacity change from 0 to 512
[ 88.736434][ T5254] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/50/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5254] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5254] exit_group(0) = ?
[pid 5254] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5254, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./50/binderfs") = 0
umount2("./50/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./50/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./50/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./50/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./50/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./50/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556068d650) = 5257
./strace-static-x86_64: Process 5257 attached
[pid 5257] set_robust_list(0x55556068d660, 24) = 0
[pid 5257] chdir("./51") = 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
executing program
[pid 5257] write(1, "executing program\n", 18) = 18
[pid 5257] memfd_create("syzkaller", 0) = 3
[pid 5257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5257] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5257] close(3) = 0
[pid 5257] close(4) = 0
[pid 5257] mkdir("./file1", 0777) = 0
[pid 5257] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5257] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5257] chdir("./file1") = 0
[pid 5257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5257] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5257] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5257] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5257] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5257] exit_group(0) = ?
[ 89.081755][ T5257] loop0: detected capacity change from 0 to 512
[ 89.118529][ T5257] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/51/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[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=3 /* 0.03 s */} ---
umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./51/binderfs") = 0
umount2("./51/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./51/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./51/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./51/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./51/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./51/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556068d650) = 5260
./strace-static-x86_64: Process 5260 attached
[pid 5260] set_robust_list(0x55556068d660, 24) = 0
[pid 5260] chdir("./52") = 0
[pid 5260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5260] setpgid(0, 0) = 0
[pid 5260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5260] write(3, "1000", 4) = 4
[pid 5260] close(3) = 0
[pid 5260] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5260] write(1, "executing program\n", 18) = 18
[pid 5260] memfd_create("syzkaller", 0) = 3
[pid 5260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5260] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5260] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5260] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5260] close(3) = 0
[pid 5260] close(4) = 0
[pid 5260] mkdir("./file1", 0777) = 0
[ 89.392424][ T5260] loop0: detected capacity change from 0 to 512
[pid 5260] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5260] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5260] chdir("./file1") = 0
[pid 5260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5260] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5260] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5260] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5260] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5260] exit_group(0) = ?
[pid 5260] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5260, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 89.445328][ T5260] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/52/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./52/binderfs") = 0
umount2("./52/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./52/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./52/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./52/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./52/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./52/file1") = 0
getdents64(3, 0x55556068e6f0 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./52") = 0
mkdir("./53", 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=0x55556068d650) = 5263
[pid 5263] set_robust_list(0x55556068d660, 24) = 0
[pid 5263] chdir("./53") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5263] memfd_create("syzkaller", 0) = 3
[pid 5263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5263] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5263] close(3) = 0
[pid 5263] close(4) = 0
[pid 5263] mkdir("./file1", 0777) = 0
[ 89.750517][ T5263] loop0: detected capacity change from 0 to 512
[pid 5263] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5263] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5263] chdir("./file1") = 0
[pid 5263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5263] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5263] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5263] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5263] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[ 89.795954][ T5263] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/53/file1 supports timestamps until 2038-01-19 (0x7fffffff)
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./53/binderfs") = 0
umount2("./53/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./53/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./53/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./53/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./53/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./53/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5266 attached
, child_tidptr=0x55556068d650) = 5266
[pid 5266] set_robust_list(0x55556068d660, 24) = 0
[pid 5266] chdir("./54") = 0
[pid 5266] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5266] setpgid(0, 0) = 0
[pid 5266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5266] write(3, "1000", 4) = 4
[pid 5266] close(3) = 0
[pid 5266] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5266] write(1, "executing program\n", 18executing program
) = 18
[pid 5266] memfd_create("syzkaller", 0) = 3
[pid 5266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5266] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5266] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5266] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5266] close(3) = 0
[pid 5266] close(4) = 0
[pid 5266] mkdir("./file1", 0777) = 0
[ 90.071116][ T5266] loop0: detected capacity change from 0 to 512
[pid 5266] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5266] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5266] chdir("./file1") = 0
[pid 5266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5266] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5266] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5266] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5266] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5266] exit_group(0) = ?
[pid 5266] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5266, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[ 90.126231][ T5266] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/54/file1 supports timestamps until 2038-01-19 (0x7fffffff)
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./54/binderfs") = 0
umount2("./54/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./54/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./54/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./54/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./54/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./54/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5269 attached
, child_tidptr=0x55556068d650) = 5269
[pid 5269] set_robust_list(0x55556068d660, 24) = 0
[pid 5269] chdir("./55") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5269] memfd_create("syzkaller", 0) = 3
[pid 5269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5269] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5269] close(3) = 0
[pid 5269] close(4) = 0
[pid 5269] mkdir("./file1", 0777) = 0
[ 90.382513][ T5269] loop0: detected capacity change from 0 to 512
[pid 5269] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5269] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5269] chdir("./file1") = 0
[pid 5269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5269] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5269] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5269] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5269] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 90.435704][ T5269] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/55/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./55/binderfs") = 0
umount2("./55/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./55/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./55/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./55/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./55/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./55/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5272 attached
, child_tidptr=0x55556068d650) = 5272
[pid 5272] set_robust_list(0x55556068d660, 24) = 0
[pid 5272] chdir("./56") = 0
[pid 5272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5272] setpgid(0, 0) = 0
[pid 5272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5272] write(3, "1000", 4) = 4
[pid 5272] close(3) = 0
[pid 5272] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5272] write(1, "executing program\n", 18executing program
) = 18
[pid 5272] memfd_create("syzkaller", 0) = 3
[pid 5272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5272] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5272] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5272] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5272] close(3) = 0
[pid 5272] close(4) = 0
[pid 5272] mkdir("./file1", 0777) = 0
[ 90.693488][ T5272] loop0: detected capacity change from 0 to 512
[pid 5272] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5272] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5272] chdir("./file1") = 0
[pid 5272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5272] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5272] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5272] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5272] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5272] exit_group(0) = ?
[pid 5272] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5272, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
[ 90.734912][ T5272] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/56/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./56/binderfs") = 0
umount2("./56/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./56/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./56/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./56/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./56/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./56/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5275 attached
, child_tidptr=0x55556068d650) = 5275
[pid 5275] set_robust_list(0x55556068d660, 24) = 0
[pid 5275] chdir("./57") = 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
executing program
[pid 5275] write(1, "executing program\n", 18) = 18
[pid 5275] memfd_create("syzkaller", 0) = 3
[pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5275] mkdir("./file1", 0777) = 0
[ 91.059511][ T5275] loop0: detected capacity change from 0 to 512
[pid 5275] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5275] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5275] chdir("./file1") = 0
[pid 5275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5275] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5275] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5275] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5275] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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("./57", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./57/binderfs") = 0
umount2("./57/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./57/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./57/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./57/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./57/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
[ 91.116529][ T5275] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/57/file1 supports timestamps until 2038-01-19 (0x7fffffff)
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./57/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5279 attached
<unfinished ...>
[pid 5279] set_robust_list(0x55556068d660, 24) = 0
[pid 5279] chdir("./58" <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5279
[pid 5279] <... chdir resumed>) = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5279] memfd_create("syzkaller", 0) = 3
[pid 5279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 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] close(4) = 0
[pid 5279] mkdir("./file1", 0777) = 0
[pid 5279] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5279] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5279] chdir("./file1") = 0
[ 91.295549][ T5279] loop0: detected capacity change from 0 to 512
[pid 5279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5279] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5279] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5279] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5279] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=4 /* 0.04 s */} ---
[ 91.335542][ T5279] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/58/file1 supports timestamps until 2038-01-19 (0x7fffffff)
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./58", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./58/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./58/binderfs") = 0
umount2("./58/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./58/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./58/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./58/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./58/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./58/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5282 attached
, child_tidptr=0x55556068d650) = 5282
[pid 5282] set_robust_list(0x55556068d660, 24) = 0
[pid 5282] chdir("./59") = 0
[pid 5282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5282] setpgid(0, 0) = 0
[pid 5282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5282] write(3, "1000", 4) = 4
[pid 5282] close(3) = 0
[pid 5282] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5282] write(1, "executing program\n", 18) = 18
[pid 5282] memfd_create("syzkaller", 0) = 3
[pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5282] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5282] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5282] close(3) = 0
[pid 5282] close(4) = 0
[pid 5282] mkdir("./file1", 0777) = 0
[ 91.659095][ T5282] loop0: detected capacity change from 0 to 512
[pid 5282] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5282] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5282] chdir("./file1") = 0
[pid 5282] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5282] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5282] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5282] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5282] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5282] exit_group(0) = ?
[pid 5282] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5282, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
umount2("./59", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./59/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./59/binderfs") = 0
[ 91.715306][ T5282] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/59/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./59/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./59/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./59/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./59/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./59/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./59/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5285 attached
, child_tidptr=0x55556068d650) = 5285
[pid 5285] set_robust_list(0x55556068d660, 24) = 0
[pid 5285] chdir("./60") = 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
executing program
[pid 5285] write(1, "executing program\n", 18) = 18
[pid 5285] memfd_create("syzkaller", 0) = 3
[pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5285] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5285] close(3) = 0
[pid 5285] close(4) = 0
[pid 5285] mkdir("./file1", 0777) = 0
[pid 5285] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5285] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5285] chdir("./file1") = 0
[pid 5285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5285] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5285] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[ 91.908366][ T5285] loop0: detected capacity change from 0 to 512
[ 91.945102][ T5285] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/60/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5285] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5285] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=3 /* 0.03 s */} ---
umount2("./60", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./60/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./60/binderfs") = 0
umount2("./60/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./60/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./60/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./60/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./60/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./60/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5288 attached
, child_tidptr=0x55556068d650) = 5288
[pid 5288] set_robust_list(0x55556068d660, 24) = 0
[pid 5288] chdir("./61") = 0
[pid 5288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5288] setpgid(0, 0) = 0
[pid 5288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5288] write(3, "1000", 4) = 4
[pid 5288] close(3) = 0
[pid 5288] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5288] write(1, "executing program\n", 18executing program
) = 18
[pid 5288] memfd_create("syzkaller", 0) = 3
[pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5288] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5288] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5288] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5288] close(3) = 0
[pid 5288] close(4) = 0
[pid 5288] mkdir("./file1", 0777) = 0
[pid 5288] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5288] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5288] chdir("./file1") = 0
[pid 5288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5288] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5288] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5288] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5288] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5288] exit_group(0) = ?
[pid 5288] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5288, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./61", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
[ 92.189637][ T5288] loop0: detected capacity change from 0 to 512
[ 92.225958][ T5288] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/61/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./61/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./61/binderfs") = 0
umount2("./61/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./61/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./61/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./61/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./61/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./61/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5291 attached
<unfinished ...>
[pid 5291] set_robust_list(0x55556068d660, 24) = 0
[pid 5291] chdir("./62" <unfinished ...>
[pid 5094] <... clone resumed>, child_tidptr=0x55556068d650) = 5291
[pid 5291] <... chdir resumed>) = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5291] memfd_create("syzkaller", 0) = 3
[pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5291] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5291] close(3) = 0
[pid 5291] close(4) = 0
[pid 5291] mkdir("./file1", 0777) = 0
[pid 5291] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5291] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5291] chdir("./file1") = 0
[pid 5291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5291] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5291] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5291] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[ 92.443007][ T5291] loop0: detected capacity change from 0 to 512
[ 92.478464][ T5291] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/62/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5291] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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=2 /* 0.02 s */} ---
umount2("./62", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./62/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./62/binderfs") = 0
umount2("./62/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./62/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./62/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./62/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./62/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./62/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5294 attached
, child_tidptr=0x55556068d650) = 5294
[pid 5294] set_robust_list(0x55556068d660, 24) = 0
[pid 5294] chdir("./63") = 0
[pid 5294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5294] setpgid(0, 0) = 0
[pid 5294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5294] write(3, "1000", 4) = 4
[pid 5294] close(3) = 0
[pid 5294] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5294] write(1, "executing program\n", 18executing program
) = 18
[pid 5294] memfd_create("syzkaller", 0) = 3
[pid 5294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5294] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5294] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5294] close(3) = 0
[pid 5294] close(4) = 0
[pid 5294] mkdir("./file1", 0777) = 0
[pid 5294] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5294] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5294] chdir("./file1") = 0
[pid 5294] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5294] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5294] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5294] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5294] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[ 92.730203][ T5294] loop0: detected capacity change from 0 to 512
[ 92.766121][ T5294] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/63/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5294] exit_group(0) = ?
[pid 5294] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5294, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./63", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./63/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./63/binderfs") = 0
umount2("./63/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./63/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./63/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./63/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./63/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./63/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5297 attached
, child_tidptr=0x55556068d650) = 5297
[pid 5297] set_robust_list(0x55556068d660, 24) = 0
[pid 5297] chdir("./64") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5297] memfd_create("syzkaller", 0) = 3
[pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5297] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5297] close(3) = 0
[pid 5297] close(4) = 0
[pid 5297] mkdir("./file1", 0777) = 0
[ 93.002655][ T5297] loop0: detected capacity change from 0 to 512
[pid 5297] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5297] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5297] chdir("./file1") = 0
[pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5297] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5297] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5297] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5297] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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("./64", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
[ 93.055392][ T5297] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/64/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./64/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./64/binderfs") = 0
umount2("./64/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./64/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./64/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./64/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./64/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./64/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5300 attached
, child_tidptr=0x55556068d650) = 5300
[pid 5300] set_robust_list(0x55556068d660, 24) = 0
[pid 5300] chdir("./65") = 0
[pid 5300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5300] setpgid(0, 0) = 0
[pid 5300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5300] write(3, "1000", 4) = 4
[pid 5300] close(3) = 0
[pid 5300] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid 5300] write(1, "executing program\n", 18) = 18
[pid 5300] memfd_create("syzkaller", 0) = 3
[pid 5300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5300] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5300] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5300] close(3) = 0
[pid 5300] close(4) = 0
[pid 5300] mkdir("./file1", 0777) = 0
[ 93.295259][ T5300] loop0: detected capacity change from 0 to 512
[pid 5300] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5300] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5300] chdir("./file1") = 0
[pid 5300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5300] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5300] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[ 93.365575][ T5300] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/65/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5300] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5300] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[pid 5300] exit_group(0) = ?
[pid 5300] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5300, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./65", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./65/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./65/binderfs") = 0
umount2("./65/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./65/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./65/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./65/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./65/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./65/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5303 attached
, child_tidptr=0x55556068d650) = 5303
[pid 5303] set_robust_list(0x55556068d660, 24) = 0
[pid 5303] chdir("./66") = 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] write(1, "executing program\n", 18executing program
) = 18
[pid 5303] memfd_create("syzkaller", 0) = 3
[pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[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(0x7fdd9d400000, 138412032) = 0
[pid 5303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5303] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5303] close(3) = 0
[pid 5303] close(4) = 0
[pid 5303] mkdir("./file1", 0777) = 0
[pid 5303] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5303] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5303] chdir("./file1") = 0
[pid 5303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5303] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5303] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5303] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[pid 5303] ioctl(4, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000300) = -1 EINVAL (Invalid argument)
[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 */} ---
[ 93.650595][ T5303] loop0: detected capacity change from 0 to 512
[ 93.686104][ T5303] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/66/file1 supports timestamps until 2038-01-19 (0x7fffffff)
umount2("./66", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x55556068e6f0 /* 4 entries */, 32768) = 112
umount2("./66/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./66/binderfs") = 0
umount2("./66/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
umount2("./66/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./66/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./66/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./66/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555560696730 /* 2 entries */, 32768) = 48
getdents64(4, 0x555560696730 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./66/file1") = 0
getdents64(3, 0x55556068e6f0 /* 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) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5306 attached
, child_tidptr=0x55556068d650) = 5306
[pid 5306] set_robust_list(0x55556068d660, 24) = 0
[pid 5306] chdir("./67") = 0
[pid 5306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5306] setpgid(0, 0) = 0
[pid 5306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5306] write(3, "1000", 4) = 4
[pid 5306] close(3) = 0
[pid 5306] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5306] write(1, "executing program\n", 18executing program
) = 18
[pid 5306] memfd_create("syzkaller", 0) = 3
[pid 5306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdd9d400000
[pid 5306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5306] munmap(0x7fdd9d400000, 138412032) = 0
[pid 5306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5306] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5306] close(3) = 0
[pid 5306] close(4) = 0
[pid 5306] mkdir("./file1", 0777) = 0
[pid 5306] mount("/dev/loop0", "./file1", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS|MS_NODIRATIME|MS_RELATIME, ",errors=continue") = 0
[pid 5306] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5306] chdir("./file1") = 0
[pid 5306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 93.928277][ T5306] loop0: detected capacity change from 0 to 512
[ 93.965174][ T5306] ext4 filesystem being mounted at /root/syzkaller.Ew4gmk/67/file1 supports timestamps until 2038-01-19 (0x7fffffff)
[pid 5306] setxattr("./file1", "trusted.overlay.upper", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4117, 0) = 0
[pid 5306] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid 5306] openat(AT_FDCWD, "cpuset.effective_cpus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5
[ 94.023131][ T5306] ------------[ cut here ]------------
[ 94.028616][ T5306] Looking for class "&ei->i_data_sem" with key init_once.__key.799, but found a different class "&ei->i_data_sem" with the same key
[ 94.042228][ T5306] WARNING: CPU: 1 PID: 5306 at kernel/locking/lockdep.c:935 look_up_lock_class+0xdc/0x160
[ 94.052120][ T5306] Modules linked in:
[ 94.056006][ T5306] CPU: 1 PID: 5306 Comm: syz-executor943 Not tainted 6.9.0-syzkaller-09429-g61307b7be41a #0
[ 94.066060][ T5306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 94.076106][ T5306] RIP: 0010:look_up_lock_class+0xdc/0x160
[ 94.081855][ T5306] Code: 01 0f 85 80 00 00 00 c6 05 10 30 0e 04 01 90 49 8b 16 49 8b 76 18 48 8b 8b b8 00 00 00 48 c7 c7 20 d9 ca 8b e8 75 3b cf f5 90 <0f> 0b 90 90 eb 57 90 e8 08 52 24 f9 48 c7 c7 60 d8 ca 8b 89 de e8
[ 94.101566][ T5306] RSP: 0018:ffffc9000329f3f0 EFLAGS: 00010046
[ 94.107666][ T5306] RAX: 2ba721a19d4c4f00 RBX: ffffffff92cd7048 RCX: ffff888018350000
[ 94.115656][ T5306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 94.123629][ T5306] RBP: ffffc9000329f500 R08: ffffffff815857d2 R09: 1ffff110172a519a
[ 94.131612][ T5306] R10: dffffc0000000000 R11: ffffed10172a519b R12: ffff88807a36b488
[ 94.139585][ T5306] R13: ffff88807a36b488 R14: ffff88807a36b488 R15: ffffffff948ca1e1
[ 94.147559][ T5306] FS: 000055556068d380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[ 94.156488][ T5306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 94.163069][ T5306] CR2: 00007fdda596a100 CR3: 000000002e112000 CR4: 0000000000350ef0
[ 94.171045][ T5306] Call Trace:
[ 94.174319][ T5306] <TASK>
[ 94.177241][ T5306] ? __warn+0x163/0x4e0
[ 94.181411][ T5306] ? look_up_lock_class+0xdc/0x160
[ 94.186523][ T5306] ? report_bug+0x2b3/0x500
[ 94.191049][ T5306] ? look_up_lock_class+0xdc/0x160
[ 94.196166][ T5306] ? handle_bug+0x3e/0x70
[ 94.200500][ T5306] ? exc_invalid_op+0x1a/0x50
[ 94.205183][ T5306] ? asm_exc_invalid_op+0x1a/0x20
[ 94.210763][ T5306] ? __warn_printk+0x292/0x360
[ 94.215551][ T5306] ? look_up_lock_class+0xdc/0x160
[ 94.220693][ T5306] register_lock_class+0x102/0x980
[ 94.225831][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.231650][ T5306] ? __pfx_register_lock_class+0x10/0x10
[ 94.237285][ T5306] ? __pfx_register_lock_class+0x10/0x10
[ 94.242925][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.248563][ T5306] __lock_acquire+0xda/0x1fd0
[ 94.253251][ T5306] lock_acquire+0x1ed/0x550
[ 94.257751][ T5306] ? ext4_move_extents+0x39d/0xec0
[ 94.262881][ T5306] ? __pfx_lock_acquire+0x10/0x10
[ 94.267915][ T5306] ? __pfx___might_resched+0x10/0x10
[ 94.273205][ T5306] ? __down_write_common+0x162/0x200
[ 94.278497][ T5306] ? __pfx_inode_dio_wait+0x10/0x10
[ 94.283713][ T5306] ? __pfx___down_write_common+0x10/0x10
[ 94.289456][ T5306] ? __pfx___down_write_common+0x10/0x10
[ 94.295110][ T5306] down_write_nested+0x3d/0x50
[ 94.299882][ T5306] ? ext4_move_extents+0x39d/0xec0
[ 94.305002][ T5306] ext4_move_extents+0x39d/0xec0
[ 94.309944][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.315587][ T5306] ? rcu_read_lock_any_held+0xb7/0x160
[ 94.321054][ T5306] ? __pfx_ext4_move_extents+0x10/0x10
[ 94.326526][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.332251][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.337887][ T5306] ext4_ioctl+0x34bd/0x55a0
[ 94.342402][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.348035][ T5306] ? kasan_save_track+0x51/0x80
[ 94.352974][ T5306] ? kfree+0x149/0x360
[ 94.357050][ T5306] ? do_syscall_64+0xf5/0x240
[ 94.361818][ T5306] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.367883][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.373519][ T5306] ? do_vfs_ioctl+0x1e77/0x2e50
[ 94.378373][ T5306] ? __pfx_ext4_ioctl+0x10/0x10
[ 94.383230][ T5306] ? __pfx_do_vfs_ioctl+0x10/0x10
[ 94.388343][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.393982][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.399619][ T5306] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 94.405947][ T5306] ? tomoyo_path_number_perm+0x208/0x880
[ 94.411592][ T5306] ? __pfx_lock_release+0x10/0x10
[ 94.416614][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.422254][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.427885][ T5306] ? kfree+0x149/0x360
[ 94.431968][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.437602][ T5306] ? tomoyo_path_number_perm+0x71a/0x880
[ 94.443237][ T5306] ? tomoyo_path_number_perm+0x208/0x880
[ 94.448868][ T5306] ? __pfx_tomoyo_path_number_perm+0x10/0x10
[ 94.454867][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.460530][ T5306] ? __pfx_ptrace_notify+0x10/0x10
[ 94.465657][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.471291][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.476974][ T5306] ? security_file_ioctl+0x87/0xb0
[ 94.482084][ T5306] ? __pfx_ext4_ioctl+0x10/0x10
[ 94.486941][ T5306] __se_sys_ioctl+0xfe/0x170
[ 94.491535][ T5306] do_syscall_64+0xf5/0x240
[ 94.496041][ T5306] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.501936][ T5306] RIP: 0033:0x7fdda58f2269
[ 94.506345][ T5306] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 94.525951][ T5306] RSP: 002b:00007fff5d321bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 94.534366][ T5306] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fdda58f2269
[ 94.542335][ T5306] RDX: 0000000020000300 RSI: 00000000c028660f RDI: 0000000000000004
[ 94.550299][ T5306] RBP: 0000000000000000 R08: 00007fff5d321c00 R09: 00007fff5d321c00
[ 94.558265][ T5306] R10: 00007fff5d321c00 R11: 0000000000000246 R12: 00007fff5d321bec
[ 94.566236][ T5306] R13: 0000000000000043 R14: 431bde82d7b634db R15: 00007fff5d321c20
[ 94.574216][ T5306] </TASK>
[ 94.577232][ T5306] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 94.584497][ T5306] CPU: 1 PID: 5306 Comm: syz-executor943 Not tainted 6.9.0-syzkaller-09429-g61307b7be41a #0
[ 94.594553][ T5306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 94.604602][ T5306] Call Trace:
[ 94.607878][ T5306] <TASK>
[ 94.610806][ T5306] dump_stack_lvl+0x241/0x360
[ 94.615488][ T5306] ? __pfx_dump_stack_lvl+0x10/0x10
[ 94.620693][ T5306] ? __pfx__printk+0x10/0x10
[ 94.625278][ T5306] ? _printk+0xd5/0x120
[ 94.629433][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.635069][ T5306] ? vscnprintf+0x5d/0x90
[ 94.639402][ T5306] panic+0x349/0x860
[ 94.643298][ T5306] ? __warn+0x172/0x4e0
[ 94.647464][ T5306] ? __pfx_panic+0x10/0x10
[ 94.651877][ T5306] ? show_trace_log_lvl+0x4e6/0x520
[ 94.657103][ T5306] __warn+0x346/0x4e0
[ 94.661093][ T5306] ? look_up_lock_class+0xdc/0x160
[ 94.666208][ T5306] report_bug+0x2b3/0x500
[ 94.670549][ T5306] ? look_up_lock_class+0xdc/0x160
[ 94.675752][ T5306] handle_bug+0x3e/0x70
[ 94.679914][ T5306] exc_invalid_op+0x1a/0x50
[ 94.684426][ T5306] asm_exc_invalid_op+0x1a/0x20
[ 94.689278][ T5306] RIP: 0010:look_up_lock_class+0xdc/0x160
[ 94.694998][ T5306] Code: 01 0f 85 80 00 00 00 c6 05 10 30 0e 04 01 90 49 8b 16 49 8b 76 18 48 8b 8b b8 00 00 00 48 c7 c7 20 d9 ca 8b e8 75 3b cf f5 90 <0f> 0b 90 90 eb 57 90 e8 08 52 24 f9 48 c7 c7 60 d8 ca 8b 89 de e8
[ 94.714707][ T5306] RSP: 0018:ffffc9000329f3f0 EFLAGS: 00010046
[ 94.720806][ T5306] RAX: 2ba721a19d4c4f00 RBX: ffffffff92cd7048 RCX: ffff888018350000
[ 94.728785][ T5306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 94.736764][ T5306] RBP: ffffc9000329f500 R08: ffffffff815857d2 R09: 1ffff110172a519a
[ 94.744838][ T5306] R10: dffffc0000000000 R11: ffffed10172a519b R12: ffff88807a36b488
[ 94.752829][ T5306] R13: ffff88807a36b488 R14: ffff88807a36b488 R15: ffffffff948ca1e1
[ 94.760819][ T5306] ? __warn_printk+0x292/0x360
[ 94.765614][ T5306] register_lock_class+0x102/0x980
[ 94.770732][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.776383][ T5306] ? __pfx_register_lock_class+0x10/0x10
[ 94.782019][ T5306] ? __pfx_register_lock_class+0x10/0x10
[ 94.787652][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.793295][ T5306] __lock_acquire+0xda/0x1fd0
[ 94.798012][ T5306] lock_acquire+0x1ed/0x550
[ 94.802532][ T5306] ? ext4_move_extents+0x39d/0xec0
[ 94.807668][ T5306] ? __pfx_lock_acquire+0x10/0x10
[ 94.812709][ T5306] ? __pfx___might_resched+0x10/0x10
[ 94.818086][ T5306] ? __down_write_common+0x162/0x200
[ 94.823385][ T5306] ? __pfx_inode_dio_wait+0x10/0x10
[ 94.828585][ T5306] ? __pfx___down_write_common+0x10/0x10
[ 94.834316][ T5306] ? __pfx___down_write_common+0x10/0x10
[ 94.839960][ T5306] down_write_nested+0x3d/0x50
[ 94.844820][ T5306] ? ext4_move_extents+0x39d/0xec0
[ 94.849938][ T5306] ext4_move_extents+0x39d/0xec0
[ 94.854882][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.860530][ T5306] ? rcu_read_lock_any_held+0xb7/0x160
[ 94.866007][ T5306] ? __pfx_ext4_move_extents+0x10/0x10
[ 94.871485][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.877124][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.882878][ T5306] ext4_ioctl+0x34bd/0x55a0
[ 94.887392][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.893120][ T5306] ? kasan_save_track+0x51/0x80
[ 94.897975][ T5306] ? kfree+0x149/0x360
[ 94.902054][ T5306] ? do_syscall_64+0xf5/0x240
[ 94.906731][ T5306] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.912796][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.918430][ T5306] ? do_vfs_ioctl+0x1e77/0x2e50
[ 94.923286][ T5306] ? __pfx_ext4_ioctl+0x10/0x10
[ 94.928144][ T5306] ? __pfx_do_vfs_ioctl+0x10/0x10
[ 94.933172][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.938811][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.944451][ T5306] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 94.950781][ T5306] ? tomoyo_path_number_perm+0x208/0x880
[ 94.956412][ T5306] ? __pfx_lock_release+0x10/0x10
[ 94.961438][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.967077][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.972712][ T5306] ? kfree+0x149/0x360
[ 94.976793][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 94.982431][ T5306] ? tomoyo_path_number_perm+0x71a/0x880
[ 94.988250][ T5306] ? tomoyo_path_number_perm+0x208/0x880
[ 94.993887][ T5306] ? __pfx_tomoyo_path_number_perm+0x10/0x10
[ 94.999874][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.005531][ T5306] ? __pfx_ptrace_notify+0x10/0x10
[ 95.011216][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.016861][ T5306] ? srso_alias_return_thunk+0x5/0xfbef5
[ 95.022499][ T5306] ? security_file_ioctl+0x87/0xb0
[ 95.027616][ T5306] ? __pfx_ext4_ioctl+0x10/0x10
[ 95.032477][ T5306] __se_sys_ioctl+0xfe/0x170
[ 95.037074][ T5306] do_syscall_64+0xf5/0x240
[ 95.041589][ T5306] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 95.047490][ T5306] RIP: 0033:0x7fdda58f2269
[ 95.051915][ T5306] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 95.071517][ T5306] RSP: 002b:00007fff5d321bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 95.079933][ T5306] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fdda58f2269
[ 95.087905][ T5306] RDX: 0000000020000300 RSI: 00000000c028660f RDI: 0000000000000004
[ 95.095875][ T5306] RBP: 0000000000000000 R08: 00007fff5d321c00 R09: 00007fff5d321c00
[ 95.103936][ T5306] R10: 00007fff5d321c00 R11: 0000000000000246 R12: 00007fff5d321bec
[ 95.111923][ T5306] R13: 0000000000000043 R14: 431bde82d7b634db R15: 00007fff5d321c20
[ 95.119906][ T5306] </TASK>
[ 95.123040][ T5306] Kernel Offset: disabled
[ 95.127350][ T5306] Rebooting in 86400 seconds..