./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2024630508
<...>
no interfaces have a carrier
[ 23.467857][ T4647] 8021q: adding VLAN 0 to HW filter on device bond0
[ 23.476948][ T4647] eql: remember to turn off Van-Jacobson compression on your slave devices
[ 23.762300][ T4731] ssh-keygen (4731) used greatest stack depth: 22368 bytes left
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts.
execve("./syz-executor2024630508", ["./syz-executor2024630508"], 0x7ffc65022450 /* 10 vars */) = 0
brk(NULL) = 0x5555564fe000
brk(0x5555564fec40) = 0x5555564fec40
arch_prctl(ARCH_SET_FS, 0x5555564fe300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2024630508", 4096) = 28
brk(0x55555651fc40) = 0x55555651fc40
brk(0x555556520000) = 0x555556520000
mprotect(0x7f31b2b8d000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
getpid() = 5075
mkdir("./syzkaller.Mxy4eV", 0700) = 0
chmod("./syzkaller.Mxy4eV", 0777) = 0
chdir("./syzkaller.Mxy4eV") = 0
mkdir("./0", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5076
./strace-static-x86_64: Process 5076 attached
[pid 5076] chdir("./0") = 0
[pid 5076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5076] setpgid(0, 0) = 0
[pid 5076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5076] write(3, "1000", 4) = 4
[pid 5076] close(3) = 0
[pid 5076] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5076] memfd_create("syzkaller", 0) = 3
[pid 5076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5076] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5076] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5076] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5076] close(3) = 0
[pid 5076] mkdir("./file0", 0777) = 0
[pid 5076] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5076] chdir("./file0") = 0
[pid 5076] ioctl(4, LOOP_CLR_FD) = 0
[pid 5076] close(4) = 0
[pid 5076] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5076] exit_group(0) = ?
[pid 5076] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5076, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./0/binderfs") = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./0/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./0/file0") = 0
getdents64(3, 0x5555564ff620 /* 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
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5078
./strace-static-x86_64: Process 5078 attached
[pid 5078] chdir("./1") = 0
[pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5078] setpgid(0, 0) = 0
[pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5078] write(3, "1000", 4) = 4
[pid 5078] close(3) = 0
syzkaller login: [ 44.526556][ T5076] loop0: detected capacity change from 0 to 14901
[pid 5078] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5078] memfd_create("syzkaller", 0) = 3
[pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5078] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5078] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5078] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5078] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5078] close(3) = 0
[pid 5078] mkdir("./file0", 0777) = 0
[pid 5078] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5078] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5078] chdir("./file0") = 0
[pid 5078] ioctl(4, LOOP_CLR_FD) = 0
[pid 5078] close(4) = 0
[pid 5078] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5078] exit_group(0) = ?
[pid 5078] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5078, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./1", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./1/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./1/binderfs") = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./1/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./1/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./1/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./1/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./1") = 0
mkdir("./2", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5079
./strace-static-x86_64: Process 5079 attached
[pid 5079] chdir("./2") = 0
[pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5079] setpgid(0, 0) = 0
[pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5079] write(3, "1000", 4) = 4
[ 44.658627][ T5078] loop0: detected capacity change from 0 to 14901
[pid 5079] close(3) = 0
[pid 5079] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5079] memfd_create("syzkaller", 0) = 3
[pid 5079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5079] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5079] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5079] close(3) = 0
[pid 5079] mkdir("./file0", 0777) = 0
[pid 5079] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5079] chdir("./file0") = 0
[pid 5079] ioctl(4, LOOP_CLR_FD) = 0
[pid 5079] close(4) = 0
[pid 5079] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5079] exit_group(0) = ?
[pid 5079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./2", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./2/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./2/binderfs") = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./2/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./2/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./2/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./2/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./2") = 0
mkdir("./3", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5080
./strace-static-x86_64: Process 5080 attached
[pid 5080] chdir("./3") = 0
[pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5080] setpgid(0, 0) = 0
[pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5080] write(3, "1000", 4) = 4
[pid 5080] close(3) = 0
[pid 5080] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5080] memfd_create("syzkaller", 0) = 3
[pid 5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[ 44.775293][ T5079] loop0: detected capacity change from 0 to 14901
[pid 5080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5080] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5080] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5080] close(3) = 0
[pid 5080] mkdir("./file0", 0777) = 0
[pid 5080] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5080] chdir("./file0") = 0
[pid 5080] ioctl(4, LOOP_CLR_FD) = 0
[pid 5080] close(4) = 0
[pid 5080] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5080] exit_group(0) = ?
[pid 5080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./3", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./3/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./3/binderfs") = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./3/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./3/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./3/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./3/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./3") = 0
mkdir("./4", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 44.885553][ T5080] loop0: detected capacity change from 0 to 14901
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5081
./strace-static-x86_64: Process 5081 attached
[pid 5081] chdir("./4") = 0
[pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5081] setpgid(0, 0) = 0
[pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5081] write(3, "1000", 4) = 4
[pid 5081] close(3) = 0
[pid 5081] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5081] memfd_create("syzkaller", 0) = 3
[pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5081] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5081] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5081] close(3) = 0
[pid 5081] mkdir("./file0", 0777) = 0
[pid 5081] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5081] chdir("./file0") = 0
[pid 5081] ioctl(4, LOOP_CLR_FD) = 0
[pid 5081] close(4) = 0
[pid 5081] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5081] exit_group(0) = ?
[pid 5081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=1 /* 0.01 s */} ---
umount2("./4", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./4/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./4/binderfs") = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./4/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./4/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./4/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./4/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./4") = 0
mkdir("./5", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 45.002363][ T5081] loop0: detected capacity change from 0 to 14901
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5082
./strace-static-x86_64: Process 5082 attached
[pid 5082] chdir("./5") = 0
[pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5082] setpgid(0, 0) = 0
[pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5082] write(3, "1000", 4) = 4
[pid 5082] close(3) = 0
[pid 5082] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5082] memfd_create("syzkaller", 0) = 3
[pid 5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5082] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5082] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5082] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5082] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5082] close(3) = 0
[pid 5082] mkdir("./file0", 0777) = 0
[pid 5082] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5082] chdir("./file0") = 0
[pid 5082] ioctl(4, LOOP_CLR_FD) = 0
[pid 5082] close(4) = 0
[pid 5082] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5082] exit_group(0) = ?
[pid 5082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./5/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./5/binderfs") = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./5/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./5/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./5/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./5") = 0
mkdir("./6", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5083
./strace-static-x86_64: Process 5083 attached
[pid 5083] chdir("./6") = 0
[pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5083] setpgid(0, 0) = 0
[pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5083] write(3, "1000", 4) = 4
[pid 5083] close(3) = 0
[pid 5083] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5083] memfd_create("syzkaller", 0) = 3
[pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[ 45.115563][ T5082] loop0: detected capacity change from 0 to 14901
[pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5083] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5083] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5083] close(3) = 0
[pid 5083] mkdir("./file0", 0777) = 0
[pid 5083] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5083] chdir("./file0") = 0
[pid 5083] ioctl(4, LOOP_CLR_FD) = 0
[pid 5083] close(4) = 0
[pid 5083] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5083] exit_group(0) = ?
[pid 5083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=3 /* 0.03 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./6", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./6/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./6/binderfs") = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./6/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./6/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./6/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./6/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./6") = 0
mkdir("./7", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5084
./strace-static-x86_64: Process 5084 attached
[pid 5084] chdir("./7") = 0
[pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5084] setpgid(0, 0) = 0
[ 45.226170][ T5083] loop0: detected capacity change from 0 to 14901
[pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5084] write(3, "1000", 4) = 4
[pid 5084] close(3) = 0
[pid 5084] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5084] memfd_create("syzkaller", 0) = 3
[pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5084] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5084] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5084] close(3) = 0
[pid 5084] mkdir("./file0", 0777) = 0
[pid 5084] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5084] chdir("./file0") = 0
[pid 5084] ioctl(4, LOOP_CLR_FD) = 0
[pid 5084] close(4) = 0
[pid 5084] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5084] exit_group(0) = ?
[pid 5084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
umount2("./7", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./7/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./7/binderfs") = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./7/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./7/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./7/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./7/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./7") = 0
mkdir("./8", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 45.343470][ T5084] loop0: detected capacity change from 0 to 14901
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5085
./strace-static-x86_64: Process 5085 attached
[pid 5085] chdir("./8") = 0
[pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5085] setpgid(0, 0) = 0
[pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5085] write(3, "1000", 4) = 4
[pid 5085] close(3) = 0
[pid 5085] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5085] memfd_create("syzkaller", 0) = 3
[pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5085] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5085] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5085] close(3) = 0
[pid 5085] mkdir("./file0", 0777) = 0
[pid 5085] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5085] chdir("./file0") = 0
[pid 5085] ioctl(4, LOOP_CLR_FD) = 0
[pid 5085] close(4) = 0
[pid 5085] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5085] exit_group(0) = ?
[pid 5085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=2 /* 0.02 s */} ---
umount2("./8", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./8/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./8/binderfs") = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./8/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./8/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./8/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./8/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./8") = 0
mkdir("./9", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5086
./strace-static-x86_64: Process 5086 attached
[pid 5086] chdir("./9") = 0
[pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5086] setpgid(0, 0) = 0
[pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5086] write(3, "1000", 4) = 4
[pid 5086] close(3) = 0
[pid 5086] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5086] memfd_create("syzkaller", 0) = 3
[pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[ 45.464341][ T5085] loop0: detected capacity change from 0 to 14901
[pid 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5086] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5086] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5086] close(3) = 0
[pid 5086] mkdir("./file0", 0777) = 0
[pid 5086] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5086] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5086] chdir("./file0") = 0
[pid 5086] ioctl(4, LOOP_CLR_FD) = 0
[pid 5086] close(4) = 0
[pid 5086] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5086] exit_group(0) = ?
[pid 5086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./9", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./9/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./9/binderfs") = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./9/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./9/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./9/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./9/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./9") = 0
mkdir("./10", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 45.559165][ T5086] loop0: detected capacity change from 0 to 14901
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5087
./strace-static-x86_64: Process 5087 attached
[pid 5087] chdir("./10") = 0
[pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5087] setpgid(0, 0) = 0
[pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5087] write(3, "1000", 4) = 4
[pid 5087] close(3) = 0
[pid 5087] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5087] memfd_create("syzkaller", 0) = 3
[pid 5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5087] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5087] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5087] close(3) = 0
[pid 5087] mkdir("./file0", 0777) = 0
[pid 5087] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5087] chdir("./file0") = 0
[pid 5087] ioctl(4, LOOP_CLR_FD) = 0
[pid 5087] close(4) = 0
[pid 5087] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5087] exit_group(0) = ?
[pid 5087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
umount2("./10", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./10/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./10/binderfs") = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./10/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./10/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./10/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./10/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./10") = 0
mkdir("./11", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5088
./strace-static-x86_64: Process 5088 attached
[pid 5088] chdir("./11") = 0
[pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5088] setpgid(0, 0) = 0
[pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5088] write(3, "1000", 4) = 4
[pid 5088] close(3) = 0
[pid 5088] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5088] memfd_create("syzkaller", 0) = 3
[pid 5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[ 45.676685][ T5087] loop0: detected capacity change from 0 to 14901
[pid 5088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5088] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5088] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5088] close(3) = 0
[pid 5088] mkdir("./file0", 0777) = 0
[pid 5088] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5088] chdir("./file0") = 0
[pid 5088] ioctl(4, LOOP_CLR_FD) = 0
[pid 5088] close(4) = 0
[pid 5088] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5088] exit_group(0) = ?
[pid 5088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./11", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./11/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./11/binderfs") = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./11/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./11/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./11/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./11/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./11") = 0
mkdir("./12", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5089
./strace-static-x86_64: Process 5089 attached
[pid 5089] chdir("./12") = 0
[pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5089] setpgid(0, 0) = 0
[pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5089] write(3, "1000", 4) = 4
[pid 5089] close(3) = 0
[pid 5089] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5089] memfd_create("syzkaller", 0) = 3
[pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[ 45.789737][ T5088] loop0: detected capacity change from 0 to 14901
[pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5089] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5089] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5089] close(3) = 0
[pid 5089] mkdir("./file0", 0777) = 0
[pid 5089] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5089] chdir("./file0") = 0
[pid 5089] ioctl(4, LOOP_CLR_FD) = 0
[pid 5089] close(4) = 0
[pid 5089] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5089] exit_group(0) = ?
[pid 5089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=3 /* 0.03 s */} ---
umount2("./12", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./12/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./12/binderfs") = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./12/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./12/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./12/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./12/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./12") = 0
mkdir("./13", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5090
./strace-static-x86_64: Process 5090 attached
[pid 5090] chdir("./13") = 0
[pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5090] setpgid(0, 0) = 0
[pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5090] write(3, "1000", 4) = 4
[pid 5090] close(3) = 0
[pid 5090] symlink("/dev/binderfs", "./binderfs") = 0
[ 45.899435][ T5089] loop0: detected capacity change from 0 to 14901
[pid 5090] memfd_create("syzkaller", 0) = 3
[pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5090] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5090] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5090] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5090] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5090] close(3) = 0
[pid 5090] mkdir("./file0", 0777) = 0
[pid 5090] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5090] chdir("./file0") = 0
[pid 5090] ioctl(4, LOOP_CLR_FD) = 0
[pid 5090] close(4) = 0
[pid 5090] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5090] exit_group(0) = ?
[pid 5090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./13", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./13/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./13/binderfs") = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./13/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./13/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./13/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./13/file0") = 0
getdents64(3, 0x5555564ff620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./13") = 0
mkdir("./14", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 46.017211][ T5090] loop0: detected capacity change from 0 to 14901
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5091
./strace-static-x86_64: Process 5091 attached
[pid 5091] chdir("./14") = 0
[pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5091] setpgid(0, 0) = 0
[pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5091] write(3, "1000", 4) = 4
[pid 5091] close(3) = 0
[pid 5091] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5091] memfd_create("syzkaller", 0) = 3
[pid 5091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[pid 5091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5091] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5091] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5091] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5091] close(3) = 0
[pid 5091] mkdir("./file0", 0777) = 0
[pid 5091] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5091] chdir("./file0") = 0
[pid 5091] ioctl(4, LOOP_CLR_FD) = 0
[pid 5091] close(4) = 0
[pid 5091] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME, 000) = -1 EROFS (Read-only file system)
[pid 5091] exit_group(0) = ?
[pid 5091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./14", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x5555564ff620 /* 4 entries */, 32768) = 112
umount2("./14/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./14/binderfs") = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./14/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./14/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./14/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555556507660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555556507660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./14/file0") = 0
getdents64(3, 0x5555564ff620 /* 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
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564fe5d0) = 5092
./strace-static-x86_64: Process 5092 attached
[pid 5092] chdir("./15") = 0
[pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5092] setpgid(0, 0) = 0
[pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5092] write(3, "1000", 4) = 4
[pid 5092] close(3) = 0
[pid 5092] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5092] memfd_create("syzkaller", 0) = 3
[pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f31aa6cf000
[ 46.136082][ T5091] loop0: detected capacity change from 0 to 14901
[pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 7629503) = 7629503
[pid 5092] munmap(0x7f31aa6cf000, 7629503) = 0
[pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5092] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5092] close(3) = 0
[pid 5092] mkdir("./file0", 0777) = 0
[pid 5092] mount("/dev/loop0", "./file0", "jfs", MS_RDONLY|MS_NOSUID, "integrity,iocharset=none,discard,iocharset=iso8859-14,noquota,discard,") = 0
[pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5092] chdir("./file0") = 0
[pid 5092] ioctl(4, LOOP_CLR_FD) = 0
[pid 5092] close(4) = 0
[ 46.233482][ T5092] loop0: detected capacity change from 0 to 14901
[ 46.253737][ T5092] ==================================================================
[ 46.261848][ T5092] BUG: KASAN: slab-out-of-bounds in dtSearch+0x1d8c/0x2000
[ 46.269059][ T5092] Read of size 1 at addr ffff888076a2f9f4 by task syz-executor202/5092
[ 46.277304][ T5092]
[ 46.279622][ T5092] CPU: 1 PID: 5092 Comm: syz-executor202 Not tainted 6.2.0-syzkaller-02299-g4a7d37e824f5 #0
[ 46.289664][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
[ 46.299705][ T5092] Call Trace:
[ 46.302977][ T5092]
[ 46.305891][ T5092] dump_stack_lvl+0xd1/0x138
[ 46.310612][ T5092] print_report+0x15e/0x45d
[ 46.315120][ T5092] ? __phys_addr+0xc8/0x140
[ 46.319618][ T5092] ? dtSearch+0x1d8c/0x2000
[ 46.324129][ T5092] kasan_report+0xbf/0x200
[ 46.328539][ T5092] ? dtSearch+0x1d8c/0x2000
[ 46.333030][ T5092] dtSearch+0x1d8c/0x2000
[ 46.337342][ T5092] ? trace_kmalloc+0xb4/0x110
[ 46.342020][ T5092] jfs_lookup+0x180/0x2f0
[ 46.346358][ T5092] ? jfs_link+0x4e0/0x4e0
[ 46.350680][ T5092] ? __d_lookup+0x267/0x4c0
[ 46.355183][ T5092] ? __d_lookup_rcu+0x4e0/0x4e0
[ 46.360039][ T5092] ? __d_lookup+0x289/0x4c0
[ 46.364539][ T5092] lookup_open.isra.0+0x944/0x1400
[ 46.369650][ T5092] ? link_path_walk.part.0+0xd60/0xd60
[ 46.375117][ T5092] ? down_write_killable_nested+0x250/0x250
[ 46.381002][ T5092] path_openat+0x975/0x2750
[ 46.385505][ T5092] ? path_lookupat+0x840/0x840
[ 46.390267][ T5092] do_filp_open+0x1ba/0x410
[ 46.394766][ T5092] ? may_open_dev+0xf0/0xf0
[ 46.399261][ T5092] ? find_held_lock+0x2d/0x110
[ 46.404020][ T5092] ? do_raw_spin_lock+0x124/0x2b0
[ 46.409125][ T5092] ? rwlock_bug.part.0+0x90/0x90
[ 46.414051][ T5092] ? _raw_spin_unlock+0x28/0x40
[ 46.418890][ T5092] ? alloc_fd+0x2e4/0x6e0
[ 46.423216][ T5092] do_sys_openat2+0x16d/0x4c0
[ 46.427881][ T5092] ? build_open_flags+0x6f0/0x6f0
[ 46.432895][ T5092] ? ptrace_notify+0xfe/0x140
[ 46.437560][ T5092] __x64_sys_open+0x11d/0x1c0
[ 46.442234][ T5092] ? do_sys_open+0x150/0x150
[ 46.446808][ T5092] ? _raw_spin_unlock_irq+0x2e/0x50
[ 46.451994][ T5092] ? ptrace_notify+0xfe/0x140
[ 46.456659][ T5092] do_syscall_64+0x39/0xb0
[ 46.461071][ T5092] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 46.466958][ T5092] RIP: 0033:0x7f31b2b1c9d9
[ 46.471362][ T5092] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 c0 ff ff ff f7 d8 64 89 01 48
[ 46.490965][ T5092] RSP: 002b:00007ffeea427138 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 46.499402][ T5092] RAX: ffffffffffffffda RBX: 000000000000b123 RCX: 00007f31b2b1c9d9
[ 46.507367][ T5092] RDX: 0000000000000000 RSI: 000000000014da42 RDI: 00000000200000c0
[ 46.515327][ T5092] RBP: 0000000000000000 R08: 000000000000234a R09: 00007ffeea427160
[ 46.523287][ T5092] R10: 00007ffeea427000 R11: 0000000000000246 R12: 00007ffeea42715c
[ 46.531240][ T5092] R13: 00007ffeea427190 R14: 00007ffeea427170 R15: 000000000000000f
[ 46.539209][ T5092]
[ 46.542214][ T5092]
[ 46.544523][ T5092] The buggy address belongs to the object at ffff888076a2ee58
[ 46.544523][ T5092] which belongs to the cache ext4_inode_cache of size 2440
[ 46.559091][ T5092] The buggy address is located 532 bytes to the right of
[ 46.559091][ T5092] 2440-byte region [ffff888076a2ee58, ffff888076a2f7e0)
[ 46.572966][ T5092]
[ 46.575275][ T5092] The buggy address belongs to the physical page:
[ 46.581662][ T5092] page:ffffea0001da8a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x76a28
[ 46.591802][ T5092] head:ffffea0001da8a00 order:3 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
[ 46.601850][ T5092] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 46.609820][ T5092] raw: 00fff00000010200 ffff8881452313c0 dead000000000122 0000000000000000
[ 46.618393][ T5092] raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000
[ 46.627000][ T5092] page dumped because: kasan: bad access detected
[ 46.633397][ T5092] page_owner tracks the page as allocated
[ 46.639179][ T5092] page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 5092, tgid 5092 (syz-executor202), ts 46170212699, free_ts 9680871349
[ 46.661666][ T5092] get_page_from_freelist+0x119c/0x2d00
[ 46.667216][ T5092] __alloc_pages+0x1cb/0x5c0
[ 46.671803][ T5092] alloc_pages+0x1aa/0x270
[ 46.676206][ T5092] allocate_slab+0x25f/0x350
[ 46.680781][ T5092] ___slab_alloc+0xa91/0x1400
[ 46.685443][ T5092] __slab_alloc.constprop.0+0x56/0xa0
[ 46.690798][ T5092] kmem_cache_alloc_lru+0x436/0x580
[ 46.695984][ T5092] ext4_alloc_inode+0x28/0x680
[ 46.700739][ T5092] alloc_inode+0x61/0x230
[ 46.705050][ T5092] new_inode+0x2b/0x280
[ 46.709188][ T5092] __ext4_new_inode+0x38c/0x5890
[ 46.714114][ T5092] ext4_symlink+0x5ac/0xa00
[ 46.718610][ T5092] vfs_symlink+0x10c/0x2c0
[ 46.723018][ T5092] do_symlinkat+0x262/0x2e0
[ 46.727504][ T5092] __x64_sys_symlink+0x79/0x90
[ 46.732254][ T5092] do_syscall_64+0x39/0xb0
[ 46.736661][ T5092] page last free stack trace:
[ 46.741312][ T5092] free_pcp_prepare+0x66a/0xc30
[ 46.746151][ T5092] free_unref_page+0x1d/0x490
[ 46.750813][ T5092] free_contig_range+0xb5/0x180
[ 46.755657][ T5092] destroy_args+0xa8/0x64c
[ 46.760065][ T5092] debug_vm_pgtable+0x28de/0x296f
[ 46.765077][ T5092] do_one_initcall+0x141/0x7d0
[ 46.769834][ T5092] kernel_init_freeable+0x6f9/0x782
[ 46.775021][ T5092] kernel_init+0x1e/0x1d0
[ 46.779340][ T5092] ret_from_fork+0x1f/0x30
[ 46.783745][ T5092]
[ 46.786051][ T5092] Memory state around the buggy address:
[ 46.791659][ T5092] ffff888076a2f880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 46.799789][ T5092] ffff888076a2f900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 46.807831][ T5092] >ffff888076a2f980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 46.815872][ T5092] ^
[ 46.823566][ T5092] ffff888076a2fa00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 46.831610][ T5092] ffff888076a2fa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 46.839655][ T5092] ==================================================================
[ 46.847874][ T5092] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 46.855080][ T5092] CPU: 0 PID: 5092 Comm: syz-executor202 Not tainted 6.2.0-syzkaller-02299-g4a7d37e824f5 #0
[ 46.865143][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
[ 46.875276][ T5092] Call Trace:
[ 46.878542][ T5092]
[ 46.881458][ T5092] dump_stack_lvl+0xd1/0x138
[ 46.886046][ T5092] panic+0x2cc/0x626
[ 46.889928][ T5092] ? panic_print_sys_info.part.0+0x110/0x110
[ 46.895899][ T5092] ? preempt_schedule_thunk+0x1a/0x20
[ 46.901354][ T5092] ? preempt_schedule_common+0x45/0xb0
[ 46.906802][ T5092] check_panic_on_warn.cold+0x19/0x35
[ 46.912164][ T5092] end_report.part.0+0x36/0x73
[ 46.916917][ T5092] ? dtSearch+0x1d8c/0x2000
[ 46.921409][ T5092] kasan_report.cold+0xa/0xf
[ 46.925991][ T5092] ? dtSearch+0x1d8c/0x2000
[ 46.930486][ T5092] dtSearch+0x1d8c/0x2000
[ 46.934807][ T5092] ? trace_kmalloc+0xb4/0x110
[ 46.939480][ T5092] jfs_lookup+0x180/0x2f0
[ 46.943801][ T5092] ? jfs_link+0x4e0/0x4e0
[ 46.948126][ T5092] ? __d_lookup+0x267/0x4c0
[ 46.952622][ T5092] ? __d_lookup_rcu+0x4e0/0x4e0
[ 46.957464][ T5092] ? __d_lookup+0x289/0x4c0
[ 46.961961][ T5092] lookup_open.isra.0+0x944/0x1400
[ 46.967067][ T5092] ? link_path_walk.part.0+0xd60/0xd60
[ 46.972521][ T5092] ? down_write_killable_nested+0x250/0x250
[ 46.978406][ T5092] path_openat+0x975/0x2750
[ 46.982906][ T5092] ? path_lookupat+0x840/0x840
[ 46.987667][ T5092] do_filp_open+0x1ba/0x410
[ 46.992281][ T5092] ? may_open_dev+0xf0/0xf0
[ 46.996775][ T5092] ? find_held_lock+0x2d/0x110
[ 47.001534][ T5092] ? do_raw_spin_lock+0x124/0x2b0
[ 47.006545][ T5092] ? rwlock_bug.part.0+0x90/0x90
[ 47.011479][ T5092] ? _raw_spin_unlock+0x28/0x40
[ 47.016320][ T5092] ? alloc_fd+0x2e4/0x6e0
[ 47.020639][ T5092] do_sys_openat2+0x16d/0x4c0
[ 47.025305][ T5092] ? build_open_flags+0x6f0/0x6f0
[ 47.030319][ T5092] ? ptrace_notify+0xfe/0x140
[ 47.034985][ T5092] __x64_sys_open+0x11d/0x1c0
[ 47.039648][ T5092] ? do_sys_open+0x150/0x150
[ 47.044224][ T5092] ? _raw_spin_unlock_irq+0x2e/0x50
[ 47.049409][ T5092] ? ptrace_notify+0xfe/0x140
[ 47.054073][ T5092] do_syscall_64+0x39/0xb0
[ 47.058483][ T5092] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 47.064371][ T5092] RIP: 0033:0x7f31b2b1c9d9
[ 47.068843][ T5092] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 c0 ff ff ff f7 d8 64 89 01 48
[ 47.088446][ T5092] RSP: 002b:00007ffeea427138 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 47.096849][ T5092] RAX: ffffffffffffffda RBX: 000000000000b123 RCX: 00007f31b2b1c9d9
[ 47.104806][ T5092] RDX: 0000000000000000 RSI: 000000000014da42 RDI: 00000000200000c0
[ 47.112762][ T5092] RBP: 0000000000000000 R08: 000000000000234a R09: 00007ffeea427160
[ 47.120738][ T5092] R10: 00007ffeea427000 R11: 0000000000000246 R12: 00007ffeea42715c
[ 47.128700][ T5092] R13: 00007ffeea427190 R14: 00007ffeea427170 R15: 000000000000000f
[ 47.136665][ T5092]
[ 47.140556][ T5092] Kernel Offset: disabled
[ 47.144864][ T5092] Rebooting in 86400 seconds..