./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1371709646
<...>
forked to background, child pid 4636
no interfaces have a carrier
[ 36.112607][ T4637] 8021q: adding VLAN 0 to HW filter on device bond0
[ 36.139086][ T4637] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.179' (ECDSA) to the list of known hosts.
execve("./syz-executor1371709646", ["./syz-executor1371709646"], 0x7ffe7f54d810 /* 10 vars */) = 0
brk(NULL) = 0x555555db6000
brk(0x555555db6c40) = 0x555555db6c40
arch_prctl(ARCH_SET_FS, 0x555555db6300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor1371709646", 4096) = 28
brk(0x555555dd7c40) = 0x555555dd7c40
brk(0x555555dd8000) = 0x555555dd8000
mprotect(0x7f2efb333000, 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() = 5060
mkdir("./syzkaller.TpLyqQ", 0700) = 0
chmod("./syzkaller.TpLyqQ", 0777) = 0
chdir("./syzkaller.TpLyqQ") = 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=0x555555db65d0) = 5061
./strace-static-x86_64: Process 5061 attached
[pid 5061] chdir("./0") = 0
[pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5061] setpgid(0, 0) = 0
[pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5061] write(3, "1000", 4) = 4
[pid 5061] close(3) = 0
[pid 5061] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5061] memfd_create("syzkaller", 0) = 3
[pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5061] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5061] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5061] close(3) = 0
[pid 5061] mkdir("./file0", 0777) = 0
syzkaller login: [ 61.654717][ T5061] loop0: detected capacity change from 0 to 4096
[ 61.675170][ T5061] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 61.683326][ T5061] NILFS (loop0): trying rollback from an earlier position
[ 61.699681][ T5061] NILFS (loop0): recovery complete
[pid 5061] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5061] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5061] chdir("./file0") = 0
[pid 5061] ioctl(4, LOOP_CLR_FD) = 0
[pid 5061] close(4) = 0
[pid 5061] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5061] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 61.707753][ T5063] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 61.726404][ T27] audit: type=1800 audit(1676306749.488:2): pid=5061 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5061] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5061] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5061] exit_group(0) = ?
[pid 5061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./0/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./0") = 0
mkdir("./1", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5064
./strace-static-x86_64: Process 5064 attached
[pid 5064] chdir("./1") = 0
[pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5064] setpgid(0, 0) = 0
[pid 5064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5064] write(3, "1000", 4) = 4
[pid 5064] close(3) = 0
[pid 5064] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5064] memfd_create("syzkaller", 0) = 3
[pid 5064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5064] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5064] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5064] close(3) = 0
[pid 5064] mkdir("./file0", 0777) = 0
[ 62.046459][ T5064] loop0: detected capacity change from 0 to 4096
[ 62.063271][ T5064] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 62.071353][ T5064] NILFS (loop0): trying rollback from an earlier position
[ 62.085511][ T5064] NILFS (loop0): recovery complete
[pid 5064] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5064] chdir("./file0") = 0
[pid 5064] ioctl(4, LOOP_CLR_FD) = 0
[pid 5064] close(4) = 0
[pid 5064] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5064] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 62.091481][ T5065] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 62.115635][ T27] audit: type=1800 audit(1676306749.858:3): pid=5064 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5064] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5064] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5064] exit_group(0) = ?
[pid 5064] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5064, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./1/file0") = 0
getdents64(3, 0x555555db7620 /* 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=0x555555db65d0) = 5066
./strace-static-x86_64: Process 5066 attached
[pid 5066] chdir("./2") = 0
[pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5066] setpgid(0, 0) = 0
[pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5066] write(3, "1000", 4) = 4
[pid 5066] close(3) = 0
[pid 5066] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5066] memfd_create("syzkaller", 0) = 3
[pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5066] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5066] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5066] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5066] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5066] close(3) = 0
[pid 5066] mkdir("./file0", 0777) = 0
[ 62.399318][ T5066] loop0: detected capacity change from 0 to 4096
[ 62.416138][ T5066] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 62.424244][ T5066] NILFS (loop0): trying rollback from an earlier position
[ 62.438128][ T5066] NILFS (loop0): recovery complete
[pid 5066] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5066] chdir("./file0") = 0
[pid 5066] ioctl(4, LOOP_CLR_FD) = 0
[pid 5066] close(4) = 0
[pid 5066] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5066] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 62.444416][ T5067] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 62.461493][ T27] audit: type=1800 audit(1676306750.218:4): pid=5066 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5066] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5066] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5066] exit_group(0) = ?
[pid 5066] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5066, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./2/file0") = 0
getdents64(3, 0x555555db7620 /* 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=0x555555db65d0) = 5068
./strace-static-x86_64: Process 5068 attached
[pid 5068] chdir("./3") = 0
[pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5068] setpgid(0, 0) = 0
[pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5068] write(3, "1000", 4) = 4
[pid 5068] close(3) = 0
[pid 5068] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5068] memfd_create("syzkaller", 0) = 3
[pid 5068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5068] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5068] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5068] close(3) = 0
[pid 5068] mkdir("./file0", 0777) = 0
[ 62.769116][ T5068] loop0: detected capacity change from 0 to 4096
[ 62.787020][ T5068] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 62.795031][ T5068] NILFS (loop0): trying rollback from an earlier position
[ 62.809246][ T5068] NILFS (loop0): recovery complete
[pid 5068] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5068] chdir("./file0") = 0
[pid 5068] ioctl(4, LOOP_CLR_FD) = 0
[pid 5068] close(4) = 0
[pid 5068] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5068] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 62.815799][ T5069] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 62.836232][ T27] audit: type=1800 audit(1676306750.568:5): pid=5068 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5068] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5068] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5068] exit_group(0) = ?
[pid 5068] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5068, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./3/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./3") = 0
mkdir("./4", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached
, child_tidptr=0x555555db65d0) = 5070
[pid 5070] chdir("./4") = 0
[pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5070] setpgid(0, 0) = 0
[pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5070] write(3, "1000", 4) = 4
[pid 5070] close(3) = 0
[pid 5070] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5070] memfd_create("syzkaller", 0) = 3
[pid 5070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5070] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5070] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5070] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5070] close(3) = 0
[pid 5070] mkdir("./file0", 0777) = 0
[pid 5070] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5070] chdir("./file0") = 0
[pid 5070] ioctl(4, LOOP_CLR_FD) = 0
[pid 5070] close(4) = 0
[ 63.151502][ T5070] loop0: detected capacity change from 0 to 4096
[ 63.170019][ T5070] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 63.178076][ T5070] NILFS (loop0): trying rollback from an earlier position
[ 63.196050][ T5070] NILFS (loop0): recovery complete
[pid 5070] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5070] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 63.217964][ T5071] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 63.228782][ T27] audit: type=1800 audit(1676306750.978:6): pid=5070 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5070] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5070] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5070] exit_group(0) = ?
[pid 5070] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5070, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./4/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./4") = 0
mkdir("./5", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5072 attached
, child_tidptr=0x555555db65d0) = 5072
[pid 5072] chdir("./5") = 0
[pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5072] setpgid(0, 0) = 0
[pid 5072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5072] write(3, "1000", 4) = 4
[pid 5072] close(3) = 0
[pid 5072] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5072] memfd_create("syzkaller", 0) = 3
[pid 5072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5072] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5072] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5072] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5072] close(3) = 0
[pid 5072] mkdir("./file0", 0777) = 0
[ 63.540217][ T5072] loop0: detected capacity change from 0 to 4096
[ 63.558601][ T5072] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 63.566690][ T5072] NILFS (loop0): trying rollback from an earlier position
[ 63.580800][ T5072] NILFS (loop0): recovery complete
[pid 5072] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5072] chdir("./file0") = 0
[pid 5072] ioctl(4, LOOP_CLR_FD) = 0
[pid 5072] close(4) = 0
[pid 5072] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5072] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 63.587517][ T5073] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 63.607295][ T27] audit: type=1800 audit(1676306751.368:7): pid=5072 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5072] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5072] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5072] exit_group(0) = ?
[pid 5072] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5072, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./5", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./5", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./5/file0") = 0
getdents64(3, 0x555555db7620 /* 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=0x555555db65d0) = 5074
./strace-static-x86_64: Process 5074 attached
[pid 5074] chdir("./6") = 0
[pid 5074] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5074] setpgid(0, 0) = 0
[pid 5074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5074] write(3, "1000", 4) = 4
[pid 5074] close(3) = 0
[pid 5074] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5074] memfd_create("syzkaller", 0) = 3
[pid 5074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5074] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5074] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5074] close(3) = 0
[pid 5074] mkdir("./file0", 0777) = 0
[pid 5074] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 63.936274][ T5074] loop0: detected capacity change from 0 to 4096
[ 63.952847][ T5074] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 63.960956][ T5074] NILFS (loop0): trying rollback from an earlier position
[ 63.976139][ T5074] NILFS (loop0): recovery complete
[pid 5074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5074] chdir("./file0") = 0
[pid 5074] ioctl(4, LOOP_CLR_FD) = 0
[pid 5074] close(4) = 0
[ 63.982342][ T5075] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5074] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5074] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 64.017906][ T27] audit: type=1800 audit(1676306751.778:8): pid=5074 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5074] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5074] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5074] exit_group(0) = ?
[pid 5074] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5074, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./6/file0") = 0
getdents64(3, 0x555555db7620 /* 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./strace-static-x86_64: Process 5076 attached
, child_tidptr=0x555555db65d0) = 5076
[pid 5076] chdir("./7") = 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) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5076] munmap(0x7f2ef2e77000, 2097152) = 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
[ 64.343958][ T5076] loop0: detected capacity change from 0 to 4096
[ 64.361142][ T5076] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 64.369221][ T5076] NILFS (loop0): trying rollback from an earlier position
[ 64.383766][ T5076] NILFS (loop0): recovery complete
[pid 5076] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5076] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 64.390480][ T5077] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 64.394549][ T27] audit: type=1800 audit(1676306752.148:9): pid=5076 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5076] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5076] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./7/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./7") = 0
mkdir("./8", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5078
./strace-static-x86_64: Process 5078 attached
[pid 5078] chdir("./8") = 0
[pid 5078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5078] setpgid(0, 0) = 0
[pid 5078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5078] write(3, "1000", 4) = 4
[pid 5078] close(3) = 0
[pid 5078] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5078] memfd_create("syzkaller", 0) = 3
[pid 5078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5078] munmap(0x7f2ef2e77000, 2097152) = 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
[ 64.756861][ T5078] loop0: detected capacity change from 0 to 4096
[ 64.775033][ T5078] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 64.783109][ T5078] NILFS (loop0): trying rollback from an earlier position
[ 64.797593][ T5078] NILFS (loop0): recovery complete
[pid 5078] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5078] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 64.804946][ T5079] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 64.828187][ T27] audit: type=1800 audit(1676306752.588:10): pid=5078 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5078] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5078] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=0, si_stime=18 /* 0.18 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./8/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./8") = 0
mkdir("./9", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached
, child_tidptr=0x555555db65d0) = 5080
[pid 5080] chdir("./9") = 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) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5080] munmap(0x7f2ef2e77000, 2097152) = 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
[ 65.138491][ T5080] loop0: detected capacity change from 0 to 4096
[ 65.154395][ T5080] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 65.162528][ T5080] NILFS (loop0): trying rollback from an earlier position
[ 65.176265][ T5080] NILFS (loop0): recovery complete
[pid 5080] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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
[ 65.183211][ T5081] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5080] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5080] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 65.212303][ T27] audit: type=1800 audit(1676306752.968:11): pid=5080 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5080] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5080] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=0, si_stime=13 /* 0.13 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./9/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./9") = 0
mkdir("./10", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5082
./strace-static-x86_64: Process 5082 attached
[pid 5082] chdir("./10") = 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) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5082] munmap(0x7f2ef2e77000, 2097152) = 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
[ 65.551035][ T5082] loop0: detected capacity change from 0 to 4096
[ 65.568241][ T5082] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 65.576341][ T5082] NILFS (loop0): trying rollback from an earlier position
[ 65.590682][ T5082] NILFS (loop0): recovery complete
[pid 5082] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5082] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 65.597785][ T5083] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5082] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5082] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=20 /* 0.20 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./10/file0") = 0
getdents64(3, 0x555555db7620 /* 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./strace-static-x86_64: Process 5084 attached
, child_tidptr=0x555555db65d0) = 5084
[pid 5084] chdir("./11") = 0
[pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5084] setpgid(0, 0) = 0
[pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5084] write(3, "1000", 4) = 4
[pid 5084] close(3) = 0
[pid 5084] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5084] memfd_create("syzkaller", 0) = 3
[pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5084] munmap(0x7f2ef2e77000, 2097152) = 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
[ 65.949486][ T5084] loop0: detected capacity change from 0 to 4096
[ 65.965885][ T5084] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 65.973977][ T5084] NILFS (loop0): trying rollback from an earlier position
[ 65.990343][ T5084] NILFS (loop0): recovery complete
[pid 5084] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5084] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 65.996686][ T5085] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5084] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5084] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./11/file0") = 0
getdents64(3, 0x555555db7620 /* 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=0x555555db65d0) = 5086
./strace-static-x86_64: Process 5086 attached
[pid 5086] chdir("./12") = 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) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5086] munmap(0x7f2ef2e77000, 2097152) = 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
[ 66.364294][ T5086] loop0: detected capacity change from 0 to 4096
[ 66.384260][ T5086] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 66.392505][ T5086] NILFS (loop0): trying rollback from an earlier position
[ 66.408418][ T5086] NILFS (loop0): recovery complete
[pid 5086] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5086] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 66.420129][ T5087] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5086] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5086] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5086] exit_group(0) = ?
[pid 5086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./12/file0") = 0
getdents64(3, 0x555555db7620 /* 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./strace-static-x86_64: Process 5088 attached
<unfinished ...>
[pid 5088] chdir("./13") = 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 <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5088
[pid 5088] <... openat resumed>) = 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) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5088] munmap(0x7f2ef2e77000, 2097152) = 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
[ 66.833613][ T5088] loop0: detected capacity change from 0 to 4096
[ 66.851890][ T5088] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 66.860065][ T5088] NILFS (loop0): trying rollback from an earlier position
[ 66.875153][ T5088] NILFS (loop0): recovery complete
[pid 5088] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5088] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 66.881482][ T5089] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 66.895632][ T27] kauditd_printk_skb: 3 callbacks suppressed
[ 66.895647][ T27] audit: type=1800 audit(1676306754.648:15): pid=5088 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5088] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5088] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=16 /* 0.16 s */} ---
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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./13/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./13") = 0
mkdir("./14", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5090
./strace-static-x86_64: Process 5090 attached
[pid 5090] chdir("./14") = 0
[pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5090] setpgid(0, 0) = 0
[pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5090] write(3, "1000", 4) = 4
[pid 5090] close(3) = 0
[pid 5090] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5090] memfd_create("syzkaller", 0) = 3
[pid 5090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5090] munmap(0x7f2ef2e77000, 2097152) = 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
[ 67.230547][ T5090] loop0: detected capacity change from 0 to 4096
[ 67.249671][ T5090] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 67.257789][ T5090] NILFS (loop0): trying rollback from an earlier position
[ 67.271874][ T5090] NILFS (loop0): recovery complete
[pid 5090] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 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_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5090] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 67.278048][ T5091] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 67.304717][ T27] audit: type=1800 audit(1676306755.058:16): pid=5090 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5090] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5090] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=19 /* 0.19 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, 0x555555db7620 /* 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, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./14/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./14") = 0
mkdir("./15", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 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) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5092] munmap(0x7f2ef2e77000, 2097152) = 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
[ 67.630997][ T5092] loop0: detected capacity change from 0 to 4096
[ 67.650987][ T5092] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 67.659166][ T5092] NILFS (loop0): trying rollback from an earlier position
[ 67.673431][ T5092] NILFS (loop0): recovery complete
[pid 5092] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5092] chdir("./file0") = 0
[pid 5092] ioctl(4, LOOP_CLR_FD) = 0
[pid 5092] close(4) = 0
[pid 5092] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5092] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 67.679664][ T5093] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 67.693744][ T27] audit: type=1800 audit(1676306755.448:17): pid=5092 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5092] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5092] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5092] exit_group(0) = ?
[pid 5092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./15", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./15/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./15/binderfs") = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./15/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./15/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./15/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./15/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./15") = 0
mkdir("./16", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5094
./strace-static-x86_64: Process 5094 attached
[pid 5094] chdir("./16") = 0
[pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5094] setpgid(0, 0) = 0
[pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5094] write(3, "1000", 4) = 4
[pid 5094] close(3) = 0
[pid 5094] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5094] memfd_create("syzkaller", 0) = 3
[pid 5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5094] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5094] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5094] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5094] close(3) = 0
[pid 5094] mkdir("./file0", 0777) = 0
[ 68.040207][ T5094] loop0: detected capacity change from 0 to 4096
[ 68.058443][ T5094] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 68.066669][ T5094] NILFS (loop0): trying rollback from an earlier position
[ 68.081490][ T5094] NILFS (loop0): recovery complete
[pid 5094] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5094] chdir("./file0") = 0
[pid 5094] ioctl(4, LOOP_CLR_FD) = 0
[pid 5094] close(4) = 0
[pid 5094] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5094] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 68.087705][ T5095] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 68.100775][ T27] audit: type=1800 audit(1676306755.858:18): pid=5094 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5094] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5094] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5094] exit_group(0) = ?
[pid 5094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
umount2("./16", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./16/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./16/binderfs") = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./16/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./16/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./16/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./16/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./16") = 0
mkdir("./17", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5096
./strace-static-x86_64: Process 5096 attached
[pid 5096] chdir("./17") = 0
[pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5096] setpgid(0, 0) = 0
[pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5096] write(3, "1000", 4) = 4
[pid 5096] close(3) = 0
[pid 5096] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5096] memfd_create("syzkaller", 0) = 3
[pid 5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5096] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5096] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5096] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5096] close(3) = 0
[pid 5096] mkdir("./file0", 0777) = 0
[ 68.417219][ T5096] loop0: detected capacity change from 0 to 4096
[ 68.433236][ T5096] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 68.441363][ T5096] NILFS (loop0): trying rollback from an earlier position
[ 68.456883][ T5096] NILFS (loop0): recovery complete
[pid 5096] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5096] chdir("./file0") = 0
[pid 5096] ioctl(4, LOOP_CLR_FD) = 0
[pid 5096] close(4) = 0
[pid 5096] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5096] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 68.463064][ T5097] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 68.477410][ T27] audit: type=1800 audit(1676306756.238:19): pid=5096 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5096] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5096] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./17", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./17/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./17/binderfs") = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./17/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./17/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./17/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./17/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./17") = 0
mkdir("./18", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5098
./strace-static-x86_64: Process 5098 attached
[pid 5098] chdir("./18") = 0
[pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5098] setpgid(0, 0) = 0
[pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5098] write(3, "1000", 4) = 4
[pid 5098] close(3) = 0
[pid 5098] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5098] memfd_create("syzkaller", 0) = 3
[pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5098] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5098] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5098] close(3) = 0
[pid 5098] mkdir("./file0", 0777) = 0
[ 68.785054][ T5098] loop0: detected capacity change from 0 to 4096
[ 68.802225][ T5098] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 68.810262][ T5098] NILFS (loop0): trying rollback from an earlier position
[ 68.824610][ T5098] NILFS (loop0): recovery complete
[pid 5098] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5098] chdir("./file0") = 0
[pid 5098] ioctl(4, LOOP_CLR_FD) = 0
[pid 5098] close(4) = 0
[pid 5098] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5098] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 68.830569][ T5099] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 68.834627][ T27] audit: type=1800 audit(1676306756.598:20): pid=5098 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5098] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5098] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5098] exit_group(0) = ?
[pid 5098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./18", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./18/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./18/binderfs") = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./18/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./18/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./18/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./18/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./18") = 0
mkdir("./19", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5100
./strace-static-x86_64: Process 5100 attached
[pid 5100] chdir("./19") = 0
[pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5100] setpgid(0, 0) = 0
[pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5100] write(3, "1000", 4) = 4
[pid 5100] close(3) = 0
[pid 5100] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5100] memfd_create("syzkaller", 0) = 3
[pid 5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5100] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5100] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5100] close(3) = 0
[pid 5100] mkdir("./file0", 0777) = 0
[ 69.150400][ T5100] loop0: detected capacity change from 0 to 4096
[ 69.168303][ T5100] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 69.176409][ T5100] NILFS (loop0): trying rollback from an earlier position
[ 69.191062][ T5100] NILFS (loop0): recovery complete
[pid 5100] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5100] chdir("./file0") = 0
[pid 5100] ioctl(4, LOOP_CLR_FD) = 0
[pid 5100] close(4) = 0
[pid 5100] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5100] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 69.197017][ T5101] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 69.216322][ T27] audit: type=1800 audit(1676306756.968:21): pid=5100 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5100] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5100] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5100] exit_group(0) = ?
[pid 5100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./19", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./19/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./19/binderfs") = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./19/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./19/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./19/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./19/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./19") = 0
mkdir("./20", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5102
./strace-static-x86_64: Process 5102 attached
[pid 5102] chdir("./20") = 0
[pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5102] setpgid(0, 0) = 0
[pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5102] write(3, "1000", 4) = 4
[pid 5102] close(3) = 0
[pid 5102] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5102] memfd_create("syzkaller", 0) = 3
[pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5102] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5102] close(3) = 0
[pid 5102] mkdir("./file0", 0777) = 0
[ 69.521645][ T5102] loop0: detected capacity change from 0 to 4096
[ 69.537841][ T5102] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 69.545851][ T5102] NILFS (loop0): trying rollback from an earlier position
[ 69.560236][ T5102] NILFS (loop0): recovery complete
[pid 5102] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5102] chdir("./file0") = 0
[pid 5102] ioctl(4, LOOP_CLR_FD) = 0
[pid 5102] close(4) = 0
[pid 5102] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5102] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 69.566575][ T5103] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 69.582384][ T27] audit: type=1800 audit(1676306757.338:22): pid=5102 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5102] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5102] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5102] exit_group(0) = ?
[pid 5102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./20", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./20/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./20/binderfs") = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./20/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./20/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./20/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./20/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./20") = 0
mkdir("./21", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5104
./strace-static-x86_64: Process 5104 attached
[pid 5104] chdir("./21") = 0
[pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5104] setpgid(0, 0) = 0
[pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5104] write(3, "1000", 4) = 4
[pid 5104] close(3) = 0
[pid 5104] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5104] memfd_create("syzkaller", 0) = 3
[pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5104] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5104] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5104] close(3) = 0
[pid 5104] mkdir("./file0", 0777) = 0
[ 69.901420][ T5104] loop0: detected capacity change from 0 to 4096
[ 69.917912][ T5104] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 69.925912][ T5104] NILFS (loop0): trying rollback from an earlier position
[ 69.940239][ T5104] NILFS (loop0): recovery complete
[pid 5104] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5104] chdir("./file0") = 0
[pid 5104] ioctl(4, LOOP_CLR_FD) = 0
[pid 5104] close(4) = 0
[pid 5104] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5104] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 69.947054][ T5105] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 69.969634][ T27] audit: type=1800 audit(1676306757.728:23): pid=5104 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5104] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5104] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5104] exit_group(0) = ?
[pid 5104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./21", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./21/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./21/binderfs") = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./21/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./21/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./21/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./21/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./21") = 0
mkdir("./22", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5106
./strace-static-x86_64: Process 5106 attached
[pid 5106] chdir("./22") = 0
[pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5106] setpgid(0, 0) = 0
[pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5106] write(3, "1000", 4) = 4
[pid 5106] close(3) = 0
[pid 5106] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5106] memfd_create("syzkaller", 0) = 3
[pid 5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5106] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5106] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5106] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5106] close(3) = 0
[pid 5106] mkdir("./file0", 0777) = 0
[ 70.267900][ T5106] loop0: detected capacity change from 0 to 4096
[ 70.284473][ T5106] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 70.292570][ T5106] NILFS (loop0): trying rollback from an earlier position
[ 70.306447][ T5106] NILFS (loop0): recovery complete
[pid 5106] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5106] chdir("./file0") = 0
[pid 5106] ioctl(4, LOOP_CLR_FD) = 0
[pid 5106] close(4) = 0
[pid 5106] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5106] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 70.312179][ T5107] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 70.319096][ T27] audit: type=1800 audit(1676306758.078:24): pid=5106 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5106] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5106] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5106] exit_group(0) = ?
[pid 5106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./22", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./22/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./22/binderfs") = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./22/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./22/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./22/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./22/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./22") = 0
mkdir("./23", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5108 attached
, child_tidptr=0x555555db65d0) = 5108
[pid 5108] chdir("./23") = 0
[pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5108] setpgid(0, 0) = 0
[pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5108] write(3, "1000", 4) = 4
[pid 5108] close(3) = 0
[pid 5108] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5108] memfd_create("syzkaller", 0) = 3
[pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5108] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5108] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5108] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5108] close(3) = 0
[pid 5108] mkdir("./file0", 0777) = 0
[pid 5108] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 70.658598][ T5108] loop0: detected capacity change from 0 to 4096
[ 70.674452][ T5108] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 70.682506][ T5108] NILFS (loop0): trying rollback from an earlier position
[ 70.696700][ T5108] NILFS (loop0): recovery complete
[pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5108] chdir("./file0") = 0
[pid 5108] ioctl(4, LOOP_CLR_FD) = 0
[pid 5108] close(4) = 0
[pid 5108] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5108] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 70.702509][ T5109] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5108] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5108] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5108] exit_group(0) = ?
[pid 5108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./23", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./23/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./23/binderfs") = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./23/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./23/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./23/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./23/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./23") = 0
mkdir("./24", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5110
./strace-static-x86_64: Process 5110 attached
[pid 5110] chdir("./24") = 0
[pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5110] setpgid(0, 0) = 0
[pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5110] write(3, "1000", 4) = 4
[pid 5110] close(3) = 0
[pid 5110] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5110] memfd_create("syzkaller", 0) = 3
[pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5110] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5110] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5110] close(3) = 0
[pid 5110] mkdir("./file0", 0777) = 0
[pid 5110] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 71.009622][ T5110] loop0: detected capacity change from 0 to 4096
[ 71.024799][ T5110] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 71.032861][ T5110] NILFS (loop0): trying rollback from an earlier position
[ 71.050103][ T5110] NILFS (loop0): recovery complete
[pid 5110] chdir("./file0") = 0
[pid 5110] ioctl(4, LOOP_CLR_FD) = 0
[pid 5110] close(4) = 0
[pid 5110] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5110] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 71.056104][ T5111] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5110] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5110] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./24", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./24/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./24/binderfs") = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./24/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./24/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./24/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./24/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./24") = 0
mkdir("./25", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5112
./strace-static-x86_64: Process 5112 attached
[pid 5112] chdir("./25") = 0
[pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5112] setpgid(0, 0) = 0
[pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5112] write(3, "1000", 4) = 4
[pid 5112] close(3) = 0
[pid 5112] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5112] memfd_create("syzkaller", 0) = 3
[pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5112] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5112] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5112] close(3) = 0
[pid 5112] mkdir("./file0", 0777) = 0
[ 71.365641][ T5112] loop0: detected capacity change from 0 to 4096
[ 71.382323][ T5112] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 71.390366][ T5112] NILFS (loop0): trying rollback from an earlier position
[ 71.404277][ T5112] NILFS (loop0): recovery complete
[pid 5112] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5112] chdir("./file0") = 0
[pid 5112] ioctl(4, LOOP_CLR_FD) = 0
[pid 5112] close(4) = 0
[pid 5112] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5112] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 71.410386][ T5113] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5112] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5112] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5112] exit_group(0) = ?
[pid 5112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./25", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./25/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./25/binderfs") = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./25/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./25/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./25/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./25/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./25") = 0
mkdir("./26", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5114
./strace-static-x86_64: Process 5114 attached
[pid 5114] chdir("./26") = 0
[pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5114] setpgid(0, 0) = 0
[pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5114] write(3, "1000", 4) = 4
[pid 5114] close(3) = 0
[pid 5114] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5114] memfd_create("syzkaller", 0) = 3
[pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5114] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5114] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5114] close(3) = 0
[pid 5114] mkdir("./file0", 0777) = 0
[ 71.722371][ T5114] loop0: detected capacity change from 0 to 4096
[ 71.744570][ T5114] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 71.752826][ T5114] NILFS (loop0): trying rollback from an earlier position
[pid 5114] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5114] chdir("./file0") = 0
[pid 5114] ioctl(4, LOOP_CLR_FD) = 0
[pid 5114] close(4) = 0
[pid 5114] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5114] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 71.768202][ T5114] NILFS (loop0): recovery complete
[ 71.774459][ T5115] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5114] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5114] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5114] exit_group(0) = ?
[pid 5114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} ---
umount2("./26", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./26/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./26/binderfs") = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./26/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./26/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./26/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./26/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./26") = 0
mkdir("./27", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5116
./strace-static-x86_64: Process 5116 attached
[pid 5116] chdir("./27") = 0
[pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5116] setpgid(0, 0) = 0
[pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5116] write(3, "1000", 4) = 4
[pid 5116] close(3) = 0
[pid 5116] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5116] memfd_create("syzkaller", 0) = 3
[pid 5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5116] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5116] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5116] close(3) = 0
[pid 5116] mkdir("./file0", 0777) = 0
[ 72.074508][ T5116] loop0: detected capacity change from 0 to 4096
[ 72.090020][ T5116] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 72.098465][ T5116] NILFS (loop0): trying rollback from an earlier position
[ 72.111642][ T5116] NILFS (loop0): recovery complete
[pid 5116] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5116] chdir("./file0") = 0
[pid 5116] ioctl(4, LOOP_CLR_FD) = 0
[pid 5116] close(4) = 0
[pid 5116] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5116] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 72.117789][ T5117] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 72.137878][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 72.137887][ T27] audit: type=1800 audit(1676306759.898:29): pid=5116 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5116] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5116] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=17 /* 0.17 s */} ---
umount2("./27", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./27/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./27/binderfs") = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./27/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./27/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./27/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./27/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./27") = 0
mkdir("./28", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5118
./strace-static-x86_64: Process 5118 attached
[pid 5118] chdir("./28") = 0
[pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5118] setpgid(0, 0) = 0
[pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5118] write(3, "1000", 4) = 4
[pid 5118] close(3) = 0
[pid 5118] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5118] memfd_create("syzkaller", 0) = 3
[pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5118] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5118] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5118] close(3) = 0
[pid 5118] mkdir("./file0", 0777) = 0
[ 72.477163][ T5118] loop0: detected capacity change from 0 to 4096
[ 72.493692][ T5118] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 72.501815][ T5118] NILFS (loop0): trying rollback from an earlier position
[ 72.516101][ T5118] NILFS (loop0): recovery complete
[pid 5118] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5118] chdir("./file0") = 0
[pid 5118] ioctl(4, LOOP_CLR_FD) = 0
[pid 5118] close(4) = 0
[ 72.522143][ T5119] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5118] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5118] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 72.548275][ T27] audit: type=1800 audit(1676306760.308:30): pid=5118 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5118] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5118] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5118] exit_group(0) = ?
[pid 5118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./28", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./28/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./28/binderfs") = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./28/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./28/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./28/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./28/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./28") = 0
mkdir("./29", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5120
./strace-static-x86_64: Process 5120 attached
[pid 5120] chdir("./29") = 0
[pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5120] setpgid(0, 0) = 0
[pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5120] write(3, "1000", 4) = 4
[pid 5120] close(3) = 0
[pid 5120] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5120] memfd_create("syzkaller", 0) = 3
[pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5120] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5120] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5120] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5120] close(3) = 0
[pid 5120] mkdir("./file0", 0777) = 0
[ 72.834828][ T5120] loop0: detected capacity change from 0 to 4096
[ 72.851096][ T5120] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 72.859303][ T5120] NILFS (loop0): trying rollback from an earlier position
[ 72.873295][ T5120] NILFS (loop0): recovery complete
[pid 5120] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5120] chdir("./file0") = 0
[pid 5120] ioctl(4, LOOP_CLR_FD) = 0
[pid 5120] close(4) = 0
[pid 5120] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5120] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 72.879540][ T5121] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 72.895203][ T27] audit: type=1800 audit(1676306760.648:31): pid=5120 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5120] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5120] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5120] exit_group(0) = ?
[pid 5120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./29", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./29/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./29/binderfs") = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./29/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./29/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./29/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./29/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./29") = 0
mkdir("./30", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5122
./strace-static-x86_64: Process 5122 attached
[pid 5122] chdir("./30") = 0
[pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5122] setpgid(0, 0) = 0
[pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5122] write(3, "1000", 4) = 4
[pid 5122] close(3) = 0
[pid 5122] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5122] memfd_create("syzkaller", 0) = 3
[pid 5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5122] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5122] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5122] close(3) = 0
[pid 5122] mkdir("./file0", 0777) = 0
[ 73.214450][ T5122] loop0: detected capacity change from 0 to 4096
[ 73.232301][ T5122] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 73.240399][ T5122] NILFS (loop0): trying rollback from an earlier position
[ 73.254272][ T5122] NILFS (loop0): recovery complete
[pid 5122] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5122] chdir("./file0") = 0
[pid 5122] ioctl(4, LOOP_CLR_FD) = 0
[pid 5122] close(4) = 0
[pid 5122] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5122] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 73.260145][ T5123] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 73.277090][ T27] audit: type=1800 audit(1676306761.028:32): pid=5122 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5122] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5122] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./30", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./30/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./30/binderfs") = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./30/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./30/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./30/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./30/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./30") = 0
mkdir("./31", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5124
./strace-static-x86_64: Process 5124 attached
[pid 5124] chdir("./31") = 0
[pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5124] setpgid(0, 0) = 0
[pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5124] write(3, "1000", 4) = 4
[pid 5124] close(3) = 0
[pid 5124] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5124] memfd_create("syzkaller", 0) = 3
[pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5124] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5124] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5124] close(3) = 0
[pid 5124] mkdir("./file0", 0777) = 0
[ 73.569342][ T5124] loop0: detected capacity change from 0 to 4096
[ 73.587640][ T5124] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 73.595651][ T5124] NILFS (loop0): trying rollback from an earlier position
[ 73.609696][ T5124] NILFS (loop0): recovery complete
[pid 5124] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5124] chdir("./file0") = 0
[pid 5124] ioctl(4, LOOP_CLR_FD) = 0
[pid 5124] close(4) = 0
[pid 5124] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5124] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 73.616012][ T5125] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 73.630359][ T27] audit: type=1800 audit(1676306761.388:33): pid=5124 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5124] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5124] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5124] exit_group(0) = ?
[pid 5124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./31", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./31/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./31/binderfs") = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./31/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./31/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./31/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./31/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./31") = 0
mkdir("./32", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5126
./strace-static-x86_64: Process 5126 attached
[pid 5126] chdir("./32") = 0
[pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5126] setpgid(0, 0) = 0
[pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5126] write(3, "1000", 4) = 4
[pid 5126] close(3) = 0
[pid 5126] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5126] memfd_create("syzkaller", 0) = 3
[pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5126] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5126] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5126] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5126] close(3) = 0
[pid 5126] mkdir("./file0", 0777) = 0
[ 73.942568][ T5126] loop0: detected capacity change from 0 to 4096
[ 73.959474][ T5126] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 73.967533][ T5126] NILFS (loop0): trying rollback from an earlier position
[ 73.981588][ T5126] NILFS (loop0): recovery complete
[pid 5126] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5126] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5126] chdir("./file0") = 0
[pid 5126] ioctl(4, LOOP_CLR_FD) = 0
[pid 5126] close(4) = 0
[pid 5126] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5126] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 73.987495][ T5127] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 74.010056][ T27] audit: type=1800 audit(1676306761.768:34): pid=5126 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5126] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5126] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5126] exit_group(0) = ?
[pid 5126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./32", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./32/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./32/binderfs") = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./32/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./32/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./32/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./32/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./32") = 0
mkdir("./33", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5128
./strace-static-x86_64: Process 5128 attached
[pid 5128] chdir("./33") = 0
[pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5128] setpgid(0, 0) = 0
[pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5128] write(3, "1000", 4) = 4
[pid 5128] close(3) = 0
[pid 5128] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5128] memfd_create("syzkaller", 0) = 3
[pid 5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5128] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5128] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5128] close(3) = 0
[pid 5128] mkdir("./file0", 0777) = 0
[ 74.327197][ T5128] loop0: detected capacity change from 0 to 4096
[ 74.354730][ T5128] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 74.363226][ T5128] NILFS (loop0): trying rollback from an earlier position
[pid 5128] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5128] chdir("./file0") = 0
[pid 5128] ioctl(4, LOOP_CLR_FD) = 0
[pid 5128] close(4) = 0
[pid 5128] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5128] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 74.377041][ T5128] NILFS (loop0): recovery complete
[ 74.382941][ T5129] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 74.398455][ T27] audit: type=1800 audit(1676306762.158:35): pid=5128 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5128] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5128] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5128] exit_group(0) = ?
[pid 5128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./33", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./33/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./33/binderfs") = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./33/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./33/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./33/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./33/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./33") = 0
mkdir("./34", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5130
./strace-static-x86_64: Process 5130 attached
[pid 5130] chdir("./34") = 0
[pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5130] setpgid(0, 0) = 0
[pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5130] write(3, "1000", 4) = 4
[pid 5130] close(3) = 0
[pid 5130] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5130] memfd_create("syzkaller", 0) = 3
[pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5130] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5130] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5130] close(3) = 0
[pid 5130] mkdir("./file0", 0777) = 0
[ 74.699089][ T5130] loop0: detected capacity change from 0 to 4096
[ 74.718200][ T5130] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 74.726287][ T5130] NILFS (loop0): trying rollback from an earlier position
[ 74.740470][ T5130] NILFS (loop0): recovery complete
[pid 5130] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5130] chdir("./file0") = 0
[pid 5130] ioctl(4, LOOP_CLR_FD) = 0
[pid 5130] close(4) = 0
[pid 5130] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5130] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 74.746826][ T5131] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 74.768285][ T27] audit: type=1800 audit(1676306762.528:36): pid=5130 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5130] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5130] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5130] exit_group(0) = ?
[pid 5130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
umount2("./34", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./34/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./34/binderfs") = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./34/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./34/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./34/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./34/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./34") = 0
mkdir("./35", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached
, child_tidptr=0x555555db65d0) = 5132
[pid 5132] chdir("./35") = 0
[pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5132] setpgid(0, 0) = 0
[pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5132] write(3, "1000", 4) = 4
[pid 5132] close(3) = 0
[pid 5132] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5132] memfd_create("syzkaller", 0) = 3
[pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5132] munmap(0x7f2ef2e77000, 2097152) = 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] mkdir("./file0", 0777) = 0
[ 75.100341][ T5132] loop0: detected capacity change from 0 to 4096
[ 75.116870][ T5132] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 75.124901][ T5132] NILFS (loop0): trying rollback from an earlier position
[ 75.138925][ T5132] NILFS (loop0): recovery complete
[pid 5132] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5132] chdir("./file0") = 0
[pid 5132] ioctl(4, LOOP_CLR_FD) = 0
[pid 5132] close(4) = 0
[pid 5132] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5132] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 75.144864][ T5133] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 75.166010][ T27] audit: type=1800 audit(1676306762.908:37): pid=5132 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5132] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5132] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./35", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./35/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./35/binderfs") = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./35/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./35/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./35/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./35/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./35") = 0
mkdir("./36", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5134 attached
<unfinished ...>
[pid 5134] chdir("./36") = 0
[pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5134] setpgid(0, 0 <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5134
[pid 5134] <... setpgid resumed>) = 0
[pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5134] write(3, "1000", 4) = 4
[pid 5134] close(3) = 0
[pid 5134] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5134] memfd_create("syzkaller", 0) = 3
[pid 5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5134] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5134] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5134] close(3) = 0
[pid 5134] mkdir("./file0", 0777) = 0
[ 75.455891][ T5134] loop0: detected capacity change from 0 to 4096
[ 75.473186][ T5134] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 75.481759][ T5134] NILFS (loop0): trying rollback from an earlier position
[ 75.496417][ T5134] NILFS (loop0): recovery complete
[pid 5134] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5134] chdir("./file0") = 0
[pid 5134] ioctl(4, LOOP_CLR_FD) = 0
[pid 5134] close(4) = 0
[pid 5134] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5134] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 75.502375][ T5135] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 75.538426][ T27] audit: type=1800 audit(1676306763.298:38): pid=5134 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5134] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5134] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5134] exit_group(0) = ?
[pid 5134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./36", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./36/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./36/binderfs") = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./36/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./36/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./36/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./36/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./36") = 0
mkdir("./37", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5136
./strace-static-x86_64: Process 5136 attached
[pid 5136] chdir("./37") = 0
[pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5136] setpgid(0, 0) = 0
[pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5136] write(3, "1000", 4) = 4
[pid 5136] close(3) = 0
[pid 5136] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5136] memfd_create("syzkaller", 0) = 3
[pid 5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5136] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5136] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5136] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5136] close(3) = 0
[pid 5136] mkdir("./file0", 0777) = 0
[ 75.830551][ T5136] loop0: detected capacity change from 0 to 4096
[ 75.848758][ T5136] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 75.856850][ T5136] NILFS (loop0): trying rollback from an earlier position
[ 75.870852][ T5136] NILFS (loop0): recovery complete
[pid 5136] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5136] chdir("./file0") = 0
[pid 5136] ioctl(4, LOOP_CLR_FD) = 0
[pid 5136] close(4) = 0
[pid 5136] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5136] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 75.877256][ T5137] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 76.068042][ T898] cfg80211: failed to load regulatory.db
[pid 5136] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5136] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5136] exit_group(0) = ?
[pid 5136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./37", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./37/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./37/binderfs") = 0
umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./37/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./37/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./37/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./37/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./37") = 0
mkdir("./38", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5138
./strace-static-x86_64: Process 5138 attached
[pid 5138] chdir("./38") = 0
[pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5138] setpgid(0, 0) = 0
[pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5138] write(3, "1000", 4) = 4
[pid 5138] close(3) = 0
[pid 5138] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5138] memfd_create("syzkaller", 0) = 3
[pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5138] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5138] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5138] close(3) = 0
[pid 5138] mkdir("./file0", 0777) = 0
[ 76.251044][ T5138] loop0: detected capacity change from 0 to 4096
[ 76.273569][ T5138] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 76.282074][ T5138] NILFS (loop0): trying rollback from an earlier position
[pid 5138] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5138] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5138] chdir("./file0") = 0
[pid 5138] ioctl(4, LOOP_CLR_FD) = 0
[pid 5138] close(4) = 0
[pid 5138] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5138] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 76.299575][ T5138] NILFS (loop0): recovery complete
[ 76.307136][ T5139] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5138] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5138] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5138] exit_group(0) = ?
[pid 5138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=27 /* 0.27 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./38", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./38/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./38/binderfs") = 0
umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./38/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./38/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./38/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./38/file0") = 0
getdents64(3, 0x555555db7620 /* 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) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5140
./strace-static-x86_64: Process 5140 attached
[pid 5140] chdir("./39") = 0
[pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5140] setpgid(0, 0) = 0
[pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5140] write(3, "1000", 4) = 4
[pid 5140] close(3) = 0
[pid 5140] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5140] memfd_create("syzkaller", 0) = 3
[pid 5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5140] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5140] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5140] close(3) = 0
[pid 5140] mkdir("./file0", 0777) = 0
[ 76.747417][ T5140] loop0: detected capacity change from 0 to 4096
[ 76.773250][ T5140] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 76.781799][ T5140] NILFS (loop0): trying rollback from an earlier position
[pid 5140] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5140] chdir("./file0") = 0
[pid 5140] ioctl(4, LOOP_CLR_FD) = 0
[pid 5140] close(4) = 0
[pid 5140] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5140] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 76.801133][ T5140] NILFS (loop0): recovery complete
[ 76.808444][ T5141] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5140] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5140] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5140] exit_group(0) = ?
[pid 5140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
umount2("./39", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./39/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./39/binderfs") = 0
umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./39/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./39/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./39/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./39/file0") = 0
getdents64(3, 0x555555db7620 /* 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) = -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 5142 attached
<unfinished ...>
[pid 5142] chdir("./40" <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5142
[pid 5142] <... chdir resumed>) = 0
[pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5142] setpgid(0, 0) = 0
[pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5142] write(3, "1000", 4) = 4
[pid 5142] close(3) = 0
[pid 5142] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5142] memfd_create("syzkaller", 0) = 3
[pid 5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5142] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5142] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5142] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5142] close(3) = 0
[pid 5142] mkdir("./file0", 0777) = 0
[pid 5142] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 77.128319][ T5142] loop0: detected capacity change from 0 to 4096
[ 77.144940][ T5142] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 77.153005][ T5142] NILFS (loop0): trying rollback from an earlier position
[ 77.166588][ T5142] NILFS (loop0): recovery complete
[pid 5142] chdir("./file0") = 0
[pid 5142] ioctl(4, LOOP_CLR_FD) = 0
[pid 5142] close(4) = 0
[pid 5142] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5142] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 77.173033][ T5143] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 77.184803][ T27] kauditd_printk_skb: 3 callbacks suppressed
[ 77.184814][ T27] audit: type=1800 audit(1676306764.948:42): pid=5142 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5142] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5142] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5142] exit_group(0) = ?
[pid 5142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./40", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./40/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./40/binderfs") = 0
umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./40/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./40/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./40/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./40/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./40") = 0
mkdir("./41", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5144
./strace-static-x86_64: Process 5144 attached
[pid 5144] chdir("./41") = 0
[pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5144] setpgid(0, 0) = 0
[pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5144] write(3, "1000", 4) = 4
[pid 5144] close(3) = 0
[pid 5144] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5144] memfd_create("syzkaller", 0) = 3
[pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5144] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5144] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5144] close(3) = 0
[pid 5144] mkdir("./file0", 0777) = 0
[ 77.481723][ T5144] loop0: detected capacity change from 0 to 4096
[ 77.497097][ T5144] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 77.505121][ T5144] NILFS (loop0): trying rollback from an earlier position
[ 77.519157][ T5144] NILFS (loop0): recovery complete
[pid 5144] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5144] chdir("./file0") = 0
[pid 5144] ioctl(4, LOOP_CLR_FD) = 0
[pid 5144] close(4) = 0
[pid 5144] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5144] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 77.525075][ T5145] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 77.549465][ T27] audit: type=1800 audit(1676306765.308:43): pid=5144 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5144] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5144] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./41", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./41/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./41/binderfs") = 0
umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./41/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./41/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./41/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./41/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./41") = 0
mkdir("./42", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached
, child_tidptr=0x555555db65d0) = 5146
[pid 5146] chdir("./42") = 0
[pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5146] setpgid(0, 0) = 0
[pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5146] write(3, "1000", 4) = 4
[pid 5146] close(3) = 0
[pid 5146] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5146] memfd_create("syzkaller", 0) = 3
[pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5146] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5146] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5146] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5146] close(3) = 0
[pid 5146] mkdir("./file0", 0777) = 0
[ 77.835213][ T5146] loop0: detected capacity change from 0 to 4096
[ 77.851383][ T5146] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 77.859467][ T5146] NILFS (loop0): trying rollback from an earlier position
[ 77.873184][ T5146] NILFS (loop0): recovery complete
[pid 5146] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5146] chdir("./file0") = 0
[pid 5146] ioctl(4, LOOP_CLR_FD) = 0
[pid 5146] close(4) = 0
[pid 5146] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5146] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 77.878981][ T5147] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 77.899354][ T27] audit: type=1800 audit(1676306765.658:44): pid=5146 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5146] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5146] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5146] exit_group(0) = ?
[pid 5146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./42", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./42/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./42/binderfs") = 0
umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./42/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./42/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./42/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./42/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./42") = 0
mkdir("./43", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5148
./strace-static-x86_64: Process 5148 attached
[pid 5148] chdir("./43") = 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
[pid 5148] memfd_create("syzkaller", 0) = 3
[pid 5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5148] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5148] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5148] close(3) = 0
[pid 5148] mkdir("./file0", 0777) = 0
[ 78.189841][ T5148] loop0: detected capacity change from 0 to 4096
[ 78.207836][ T5148] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 78.215948][ T5148] NILFS (loop0): trying rollback from an earlier position
[ 78.230185][ T5148] NILFS (loop0): recovery complete
[pid 5148] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5148] chdir("./file0") = 0
[pid 5148] ioctl(4, LOOP_CLR_FD) = 0
[pid 5148] close(4) = 0
[pid 5148] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5148] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 78.236213][ T5149] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 78.259349][ T27] audit: type=1800 audit(1676306766.018:45): pid=5148 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5148] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5148] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./43", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./43/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./43/binderfs") = 0
umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./43/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./43/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./43/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./43/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./43") = 0
mkdir("./44", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5150
./strace-static-x86_64: Process 5150 attached
[pid 5150] chdir("./44") = 0
[pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5150] setpgid(0, 0) = 0
[pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5150] write(3, "1000", 4) = 4
[pid 5150] close(3) = 0
[pid 5150] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5150] memfd_create("syzkaller", 0) = 3
[pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5150] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5150] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5150] close(3) = 0
[pid 5150] mkdir("./file0", 0777) = 0
[ 78.567611][ T5150] loop0: detected capacity change from 0 to 4096
[ 78.584478][ T5150] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 78.592577][ T5150] NILFS (loop0): trying rollback from an earlier position
[ 78.607110][ T5150] NILFS (loop0): recovery complete
[pid 5150] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5150] chdir("./file0") = 0
[pid 5150] ioctl(4, LOOP_CLR_FD) = 0
[pid 5150] close(4) = 0
[pid 5150] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5150] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 78.613421][ T5151] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 78.617010][ T27] audit: type=1800 audit(1676306766.368:46): pid=5150 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5150] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5150] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5150] exit_group(0) = ?
[pid 5150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./44", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./44/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./44/binderfs") = 0
umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./44/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./44/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./44/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./44/file0") = 0
getdents64(3, 0x555555db7620 /* 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) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5152
./strace-static-x86_64: Process 5152 attached
[pid 5152] chdir("./45") = 0
[pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5152] setpgid(0, 0) = 0
[pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5152] write(3, "1000", 4) = 4
[pid 5152] close(3) = 0
[pid 5152] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5152] memfd_create("syzkaller", 0) = 3
[pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5152] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5152] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5152] close(3) = 0
[pid 5152] mkdir("./file0", 0777) = 0
[ 78.909006][ T5152] loop0: detected capacity change from 0 to 4096
[ 78.923035][ T5152] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 78.931331][ T5152] NILFS (loop0): trying rollback from an earlier position
[ 78.944512][ T5152] NILFS (loop0): recovery complete
[pid 5152] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5152] chdir("./file0") = 0
[pid 5152] ioctl(4, LOOP_CLR_FD) = 0
[pid 5152] close(4) = 0
[pid 5152] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5152] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 78.950472][ T5153] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 78.962526][ T27] audit: type=1800 audit(1676306766.718:47): pid=5152 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5152] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5152] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5152] exit_group(0) = ?
[pid 5152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./45", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./45/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./45/binderfs") = 0
umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./45/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./45/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./45/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./45/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./45") = 0
mkdir("./46", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5154
./strace-static-x86_64: Process 5154 attached
[pid 5154] chdir("./46") = 0
[pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5154] setpgid(0, 0) = 0
[pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5154] write(3, "1000", 4) = 4
[pid 5154] close(3) = 0
[pid 5154] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5154] memfd_create("syzkaller", 0) = 3
[pid 5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5154] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5154] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5154] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5154] close(3) = 0
[pid 5154] mkdir("./file0", 0777) = 0
[ 79.257289][ T5154] loop0: detected capacity change from 0 to 4096
[ 79.274040][ T5154] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 79.282099][ T5154] NILFS (loop0): trying rollback from an earlier position
[ 79.295884][ T5154] NILFS (loop0): recovery complete
[pid 5154] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5154] chdir("./file0") = 0
[pid 5154] ioctl(4, LOOP_CLR_FD) = 0
[pid 5154] close(4) = 0
[ 79.302045][ T5155] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5154] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5154] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 79.332886][ T27] audit: type=1800 audit(1676306767.088:48): pid=5154 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5154] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5154] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./46", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./46/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./46/binderfs") = 0
umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./46/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./46/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./46/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./46/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./46") = 0
mkdir("./47", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5156
./strace-static-x86_64: Process 5156 attached
[pid 5156] chdir("./47") = 0
[pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5156] setpgid(0, 0) = 0
[pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5156] write(3, "1000", 4) = 4
[pid 5156] close(3) = 0
[pid 5156] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5156] memfd_create("syzkaller", 0) = 3
[pid 5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5156] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5156] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5156] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5156] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5156] close(3) = 0
[pid 5156] mkdir("./file0", 0777) = 0
[ 79.615390][ T5156] loop0: detected capacity change from 0 to 4096
[ 79.631183][ T5156] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 79.639226][ T5156] NILFS (loop0): trying rollback from an earlier position
[ 79.653596][ T5156] NILFS (loop0): recovery complete
[pid 5156] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5156] chdir("./file0") = 0
[pid 5156] ioctl(4, LOOP_CLR_FD) = 0
[pid 5156] close(4) = 0
[pid 5156] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5156] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 79.659864][ T5157] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 79.679082][ T27] audit: type=1800 audit(1676306767.438:49): pid=5156 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5156] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5156] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5156] exit_group(0) = ?
[pid 5156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./47", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./47/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./47/binderfs") = 0
umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./47/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./47/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./47/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./47/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./47") = 0
mkdir("./48", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5158
./strace-static-x86_64: Process 5158 attached
[pid 5158] chdir("./48") = 0
[pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5158] setpgid(0, 0) = 0
[pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5158] write(3, "1000", 4) = 4
[pid 5158] close(3) = 0
[pid 5158] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5158] memfd_create("syzkaller", 0) = 3
[pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5158] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5158] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5158] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5158] close(3) = 0
[pid 5158] mkdir("./file0", 0777) = 0
[ 79.985994][ T5158] loop0: detected capacity change from 0 to 4096
[ 80.000810][ T5158] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 80.008898][ T5158] NILFS (loop0): trying rollback from an earlier position
[ 80.022635][ T5158] NILFS (loop0): recovery complete
[pid 5158] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5158] chdir("./file0") = 0
[pid 5158] ioctl(4, LOOP_CLR_FD) = 0
[pid 5158] close(4) = 0
[pid 5158] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5158] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 80.028511][ T5159] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 80.054829][ T27] audit: type=1800 audit(1676306767.808:50): pid=5158 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5158] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5158] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5158] exit_group(0) = ?
[pid 5158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./48", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./48/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./48/binderfs") = 0
umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./48/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./48/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./48/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./48/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./48") = 0
mkdir("./49", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached
, child_tidptr=0x555555db65d0) = 5160
[pid 5160] chdir("./49") = 0
[pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5160] setpgid(0, 0) = 0
[pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5160] write(3, "1000", 4) = 4
[pid 5160] close(3) = 0
[pid 5160] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5160] memfd_create("syzkaller", 0) = 3
[pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5160] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5160] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5160] close(3) = 0
[pid 5160] mkdir("./file0", 0777) = 0
[ 80.345356][ T5160] loop0: detected capacity change from 0 to 4096
[ 80.362775][ T5160] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 80.370849][ T5160] NILFS (loop0): trying rollback from an earlier position
[ 80.384923][ T5160] NILFS (loop0): recovery complete
[pid 5160] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5160] chdir("./file0") = 0
[pid 5160] ioctl(4, LOOP_CLR_FD) = 0
[pid 5160] close(4) = 0
[pid 5160] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5160] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 80.391085][ T5161] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 80.410485][ T27] audit: type=1800 audit(1676306768.168:51): pid=5160 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5160] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5160] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./49", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./49/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./49/binderfs") = 0
umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./49/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./49/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./49/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./49/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./49") = 0
mkdir("./50", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached
, child_tidptr=0x555555db65d0) = 5162
[pid 5162] chdir("./50") = 0
[pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5162] setpgid(0, 0) = 0
[pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5162] write(3, "1000", 4) = 4
[pid 5162] close(3) = 0
[pid 5162] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5162] memfd_create("syzkaller", 0) = 3
[pid 5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5162] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5162] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5162] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5162] close(3) = 0
[pid 5162] mkdir("./file0", 0777) = 0
[pid 5162] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5162] chdir("./file0") = 0
[pid 5162] ioctl(4, LOOP_CLR_FD) = 0
[pid 5162] close(4) = 0
[pid 5162] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5162] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 80.704116][ T5162] loop0: detected capacity change from 0 to 4096
[ 80.720840][ T5162] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 80.728888][ T5162] NILFS (loop0): trying rollback from an earlier position
[ 80.742064][ T5162] NILFS (loop0): recovery complete
[ 80.748184][ T5163] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5162] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5162] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5162] exit_group(0) = ?
[pid 5162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./50/binderfs") = 0
umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./50/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./50") = 0
mkdir("./51", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5164
./strace-static-x86_64: Process 5164 attached
[pid 5164] chdir("./51") = 0
[pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5164] setpgid(0, 0) = 0
[pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5164] write(3, "1000", 4) = 4
[pid 5164] close(3) = 0
[pid 5164] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5164] memfd_create("syzkaller", 0) = 3
[pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5164] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5164] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5164] close(3) = 0
[pid 5164] mkdir("./file0", 0777) = 0
[ 81.061155][ T5164] loop0: detected capacity change from 0 to 4096
[ 81.080998][ T5164] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 81.089315][ T5164] NILFS (loop0): trying rollback from an earlier position
[ 81.103584][ T5164] NILFS (loop0): recovery complete
[pid 5164] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5164] chdir("./file0") = 0
[pid 5164] ioctl(4, LOOP_CLR_FD) = 0
[pid 5164] close(4) = 0
[pid 5164] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5164] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 81.109672][ T5165] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5164] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5164] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5164] exit_group(0) = ?
[pid 5164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./51/binderfs") = 0
umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./51/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./51") = 0
mkdir("./52", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached
<unfinished ...>
[pid 5166] chdir("./52") = 0
[pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5166
[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
[pid 5166] memfd_create("syzkaller", 0) = 3
[pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5166] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5166] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5166] close(3) = 0
[pid 5166] mkdir("./file0", 0777) = 0
[ 81.420526][ T5166] loop0: detected capacity change from 0 to 4096
[ 81.437148][ T5166] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 81.445226][ T5166] NILFS (loop0): trying rollback from an earlier position
[ 81.459891][ T5166] NILFS (loop0): recovery complete
[pid 5166] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5166] chdir("./file0") = 0
[pid 5166] ioctl(4, LOOP_CLR_FD) = 0
[pid 5166] close(4) = 0
[pid 5166] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5166] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 81.465692][ T5167] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5166] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5166] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./52/binderfs") = 0
umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./52/file0") = 0
getdents64(3, 0x555555db7620 /* 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) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5168
./strace-static-x86_64: Process 5168 attached
[pid 5168] chdir("./53") = 0
[pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5168] setpgid(0, 0) = 0
[pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5168] write(3, "1000", 4) = 4
[pid 5168] close(3) = 0
[pid 5168] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5168] memfd_create("syzkaller", 0) = 3
[pid 5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5168] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5168] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5168] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5168] close(3) = 0
[pid 5168] mkdir("./file0", 0777) = 0
[ 81.803624][ T5168] loop0: detected capacity change from 0 to 4096
[ 81.820113][ T5168] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 81.828302][ T5168] NILFS (loop0): trying rollback from an earlier position
[ 81.844426][ T5168] NILFS (loop0): recovery complete
[pid 5168] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5168] chdir("./file0") = 0
[pid 5168] ioctl(4, LOOP_CLR_FD) = 0
[pid 5168] close(4) = 0
[pid 5168] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5168] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 81.850223][ T5169] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5168] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5168] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5168] exit_group(0) = ?
[pid 5168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./53/binderfs") = 0
umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./53/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./53") = 0
mkdir("./54", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5170 attached
<unfinished ...>
[pid 5170] chdir("./54") = 0
[pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5170
[pid 5170] <... prctl resumed>) = 0
[pid 5170] setpgid(0, 0) = 0
[pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5170] write(3, "1000", 4) = 4
[pid 5170] close(3) = 0
[pid 5170] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5170] memfd_create("syzkaller", 0) = 3
[pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5170] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5170] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5170] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5170] close(3) = 0
[pid 5170] mkdir("./file0", 0777) = 0
[ 82.142612][ T5170] loop0: detected capacity change from 0 to 4096
[ 82.159571][ T5170] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 82.167654][ T5170] NILFS (loop0): trying rollback from an earlier position
[ 82.181148][ T5170] NILFS (loop0): recovery complete
[pid 5170] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5170] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5170] chdir("./file0") = 0
[pid 5170] ioctl(4, LOOP_CLR_FD) = 0
[pid 5170] close(4) = 0
[pid 5170] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5170] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 82.187159][ T5171] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 82.209040][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 82.209052][ T27] audit: type=1800 audit(1676306769.968:56): pid=5170 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5170] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5170] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5170] exit_group(0) = ?
[pid 5170] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./54/binderfs") = 0
umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./54/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./54") = 0
mkdir("./55", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5172
./strace-static-x86_64: Process 5172 attached
[pid 5172] chdir("./55") = 0
[pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5172] setpgid(0, 0) = 0
[pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5172] write(3, "1000", 4) = 4
[pid 5172] close(3) = 0
[pid 5172] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5172] memfd_create("syzkaller", 0) = 3
[pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5172] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5172] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5172] close(3) = 0
[pid 5172] mkdir("./file0", 0777) = 0
[ 82.509841][ T5172] loop0: detected capacity change from 0 to 4096
[ 82.526503][ T5172] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 82.534537][ T5172] NILFS (loop0): trying rollback from an earlier position
[ 82.549010][ T5172] NILFS (loop0): recovery complete
[pid 5172] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5172] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5172] chdir("./file0") = 0
[pid 5172] ioctl(4, LOOP_CLR_FD) = 0
[pid 5172] close(4) = 0
[pid 5172] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5172] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 82.555196][ T5174] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 82.563592][ T27] audit: type=1800 audit(1676306770.318:57): pid=5172 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5172] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5172] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./55/binderfs") = 0
umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./55/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./55/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./55") = 0
mkdir("./56", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5175
./strace-static-x86_64: Process 5175 attached
[pid 5175] chdir("./56") = 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
[pid 5175] memfd_create("syzkaller", 0) = 3
[pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5175] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5175] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5175] close(3) = 0
[pid 5175] mkdir("./file0", 0777) = 0
[ 82.845176][ T5175] loop0: detected capacity change from 0 to 4096
[ 82.861651][ T5175] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 82.869792][ T5175] NILFS (loop0): trying rollback from an earlier position
[ 82.884184][ T5175] NILFS (loop0): recovery complete
[pid 5175] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5175] chdir("./file0") = 0
[pid 5175] ioctl(4, LOOP_CLR_FD) = 0
[pid 5175] close(4) = 0
[pid 5175] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5175] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 82.890022][ T5176] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 82.894154][ T27] audit: type=1800 audit(1676306770.658:58): pid=5175 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5175] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5175] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./56/binderfs") = 0
umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./56/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./56") = 0
mkdir("./57", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5177
./strace-static-x86_64: Process 5177 attached
[pid 5177] chdir("./57") = 0
[pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5177] setpgid(0, 0) = 0
[pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5177] write(3, "1000", 4) = 4
[pid 5177] close(3) = 0
[pid 5177] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5177] memfd_create("syzkaller", 0) = 3
[pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5177] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5177] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5177] close(3) = 0
[pid 5177] mkdir("./file0", 0777) = 0
[ 83.223825][ T5177] loop0: detected capacity change from 0 to 4096
[ 83.239796][ T5177] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 83.247903][ T5177] NILFS (loop0): trying rollback from an earlier position
[ 83.262527][ T5177] NILFS (loop0): recovery complete
[pid 5177] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5177] chdir("./file0") = 0
[pid 5177] ioctl(4, LOOP_CLR_FD) = 0
[pid 5177] close(4) = 0
[pid 5177] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5177] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 83.268508][ T5178] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 83.286340][ T27] audit: type=1800 audit(1676306771.038:59): pid=5177 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5177] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5177] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5177] exit_group(0) = ?
[pid 5177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./57/binderfs") = 0
umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./57/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./57/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./57") = 0
mkdir("./58", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5179
./strace-static-x86_64: Process 5179 attached
[pid 5179] chdir("./58") = 0
[pid 5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5179] setpgid(0, 0) = 0
[pid 5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5179] write(3, "1000", 4) = 4
[pid 5179] close(3) = 0
[pid 5179] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5179] memfd_create("syzkaller", 0) = 3
[pid 5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5179] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5179] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5179] close(3) = 0
[pid 5179] mkdir("./file0", 0777) = 0
[ 83.608891][ T5179] loop0: detected capacity change from 0 to 4096
[ 83.625516][ T5179] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 83.633973][ T5179] NILFS (loop0): trying rollback from an earlier position
[ 83.648796][ T5179] NILFS (loop0): recovery complete
[pid 5179] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5179] chdir("./file0") = 0
[pid 5179] ioctl(4, LOOP_CLR_FD) = 0
[pid 5179] close(4) = 0
[pid 5179] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5179] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 83.655168][ T5180] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 83.679052][ T27] audit: type=1800 audit(1676306771.438:60): pid=5179 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5179] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5179] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5179] exit_group(0) = ?
[pid 5179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./58/binderfs") = 0
umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./58/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./58") = 0
mkdir("./59", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5181
./strace-static-x86_64: Process 5181 attached
[pid 5181] chdir("./59") = 0
[pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5181] setpgid(0, 0) = 0
[pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5181] write(3, "1000", 4) = 4
[pid 5181] close(3) = 0
[pid 5181] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5181] memfd_create("syzkaller", 0) = 3
[pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5181] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5181] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5181] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5181] close(3) = 0
[pid 5181] mkdir("./file0", 0777) = 0
[ 84.007939][ T5181] loop0: detected capacity change from 0 to 4096
[ 84.025373][ T5181] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 84.033435][ T5181] NILFS (loop0): trying rollback from an earlier position
[ 84.048117][ T5181] NILFS (loop0): recovery complete
[pid 5181] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5181] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5181] chdir("./file0") = 0
[pid 5181] ioctl(4, LOOP_CLR_FD) = 0
[pid 5181] close(4) = 0
[pid 5181] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5181] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 84.054312][ T5182] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 84.070736][ T27] audit: type=1800 audit(1676306771.828:61): pid=5181 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5181] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5181] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5181] exit_group(0) = ?
[pid 5181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./59/binderfs") = 0
umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./59/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./59/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./59") = 0
mkdir("./60", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5183
./strace-static-x86_64: Process 5183 attached
[pid 5183] chdir("./60") = 0
[pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5183] setpgid(0, 0) = 0
[pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5183] write(3, "1000", 4) = 4
[pid 5183] close(3) = 0
[pid 5183] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5183] memfd_create("syzkaller", 0) = 3
[pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5183] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5183] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5183] close(3) = 0
[pid 5183] mkdir("./file0", 0777) = 0
[pid 5183] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5183] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 84.388878][ T5183] loop0: detected capacity change from 0 to 4096
[ 84.404240][ T5183] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 84.412437][ T5183] NILFS (loop0): trying rollback from an earlier position
[ 84.426769][ T5183] NILFS (loop0): recovery complete
[pid 5183] chdir("./file0") = 0
[pid 5183] ioctl(4, LOOP_CLR_FD) = 0
[pid 5183] close(4) = 0
[pid 5183] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5183] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 84.433320][ T5184] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 84.446612][ T27] audit: type=1800 audit(1676306772.208:62): pid=5183 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5183] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5183] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5183] exit_group(0) = ?
[pid 5183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./60/binderfs") = 0
umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./60/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./60") = 0
mkdir("./61", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5185
./strace-static-x86_64: Process 5185 attached
[pid 5185] chdir("./61") = 0
[pid 5185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5185] setpgid(0, 0) = 0
[pid 5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5185] write(3, "1000", 4) = 4
[pid 5185] close(3) = 0
[pid 5185] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5185] memfd_create("syzkaller", 0) = 3
[pid 5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5185] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5185] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5185] close(3) = 0
[pid 5185] mkdir("./file0", 0777) = 0
[ 84.751699][ T5185] loop0: detected capacity change from 0 to 4096
[ 84.767756][ T5185] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 84.775811][ T5185] NILFS (loop0): trying rollback from an earlier position
[ 84.790498][ T5185] NILFS (loop0): recovery complete
[pid 5185] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5185] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5185] chdir("./file0") = 0
[pid 5185] ioctl(4, LOOP_CLR_FD) = 0
[pid 5185] close(4) = 0
[pid 5185] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5185] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 84.796642][ T5186] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 84.811889][ T27] audit: type=1800 audit(1676306772.568:63): pid=5185 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5185] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5185] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5185] exit_group(0) = ?
[pid 5185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./61/binderfs") = 0
umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./61/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./61/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./61") = 0
mkdir("./62", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5187
./strace-static-x86_64: Process 5187 attached
[pid 5187] chdir("./62") = 0
[pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5187] setpgid(0, 0) = 0
[pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5187] write(3, "1000", 4) = 4
[pid 5187] close(3) = 0
[pid 5187] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5187] memfd_create("syzkaller", 0) = 3
[pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5187] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5187] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5187] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5187] close(3) = 0
[pid 5187] mkdir("./file0", 0777) = 0
[pid 5187] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5187] chdir("./file0") = 0
[pid 5187] ioctl(4, LOOP_CLR_FD) = 0
[pid 5187] close(4) = 0
[ 85.121302][ T5187] loop0: detected capacity change from 0 to 4096
[ 85.137068][ T5187] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 85.145113][ T5187] NILFS (loop0): trying rollback from an earlier position
[ 85.158940][ T5187] NILFS (loop0): recovery complete
[pid 5187] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5187] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 85.165194][ T5188] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 85.173611][ T27] audit: type=1800 audit(1676306772.918:64): pid=5187 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5187] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5187] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5187] exit_group(0) = ?
[pid 5187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./62/binderfs") = 0
umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./62/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./62/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./62") = 0
mkdir("./63", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5189
./strace-static-x86_64: Process 5189 attached
[pid 5189] chdir("./63") = 0
[pid 5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5189] setpgid(0, 0) = 0
[pid 5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5189] write(3, "1000", 4) = 4
[pid 5189] close(3) = 0
[pid 5189] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5189] memfd_create("syzkaller", 0) = 3
[pid 5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5189] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5189] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5189] close(3) = 0
[pid 5189] mkdir("./file0", 0777) = 0
[ 85.484322][ T5189] loop0: detected capacity change from 0 to 4096
[ 85.501828][ T5189] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 85.509924][ T5189] NILFS (loop0): trying rollback from an earlier position
[ 85.523528][ T5189] NILFS (loop0): recovery complete
[pid 5189] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5189] chdir("./file0") = 0
[pid 5189] ioctl(4, LOOP_CLR_FD) = 0
[pid 5189] close(4) = 0
[pid 5189] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5189] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 85.529823][ T5190] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 85.548369][ T27] audit: type=1800 audit(1676306773.308:65): pid=5189 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5189] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5189] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5189] exit_group(0) = ?
[pid 5189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./63/binderfs") = 0
umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./63/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./63/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./63") = 0
mkdir("./64", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5191
./strace-static-x86_64: Process 5191 attached
[pid 5191] chdir("./64") = 0
[pid 5191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5191] setpgid(0, 0) = 0
[pid 5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5191] write(3, "1000", 4) = 4
[pid 5191] close(3) = 0
[pid 5191] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5191] memfd_create("syzkaller", 0) = 3
[pid 5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5191] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5191] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5191] close(3) = 0
[pid 5191] mkdir("./file0", 0777) = 0
[ 85.860029][ T5191] loop0: detected capacity change from 0 to 4096
[ 85.879035][ T5191] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 85.887139][ T5191] NILFS (loop0): trying rollback from an earlier position
[ 85.901998][ T5191] NILFS (loop0): recovery complete
[pid 5191] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5191] chdir("./file0") = 0
[pid 5191] ioctl(4, LOOP_CLR_FD) = 0
[pid 5191] close(4) = 0
[pid 5191] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5191] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 85.908393][ T5192] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5191] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5191] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5191] exit_group(0) = ?
[pid 5191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./64/binderfs") = 0
umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./64/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./64/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./64") = 0
mkdir("./65", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5193
./strace-static-x86_64: Process 5193 attached
[pid 5193] chdir("./65") = 0
[pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5193] setpgid(0, 0) = 0
[pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5193] write(3, "1000", 4) = 4
[pid 5193] close(3) = 0
[pid 5193] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5193] memfd_create("syzkaller", 0) = 3
[pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5193] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5193] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5193] close(3) = 0
[pid 5193] mkdir("./file0", 0777) = 0
[ 86.202077][ T5193] loop0: detected capacity change from 0 to 4096
[ 86.218422][ T5193] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 86.226552][ T5193] NILFS (loop0): trying rollback from an earlier position
[ 86.240784][ T5193] NILFS (loop0): recovery complete
[pid 5193] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5193] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5193] chdir("./file0") = 0
[pid 5193] ioctl(4, LOOP_CLR_FD) = 0
[pid 5193] close(4) = 0
[pid 5193] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5193] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 86.247396][ T5194] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5193] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5193] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5193] exit_group(0) = ?
[pid 5193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./65/binderfs") = 0
umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./65/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./65/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./65") = 0
mkdir("./66", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5195
./strace-static-x86_64: Process 5195 attached
[pid 5195] chdir("./66") = 0
[pid 5195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5195] setpgid(0, 0) = 0
[pid 5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5195] write(3, "1000", 4) = 4
[pid 5195] close(3) = 0
[pid 5195] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5195] memfd_create("syzkaller", 0) = 3
[pid 5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5195] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5195] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5195] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5195] close(3) = 0
[pid 5195] mkdir("./file0", 0777) = 0
[ 86.531078][ T5195] loop0: detected capacity change from 0 to 4096
[ 86.547640][ T5195] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 86.555704][ T5195] NILFS (loop0): trying rollback from an earlier position
[ 86.571118][ T5195] NILFS (loop0): recovery complete
[pid 5195] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5195] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5195] chdir("./file0") = 0
[pid 5195] ioctl(4, LOOP_CLR_FD) = 0
[pid 5195] close(4) = 0
[pid 5195] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5195] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 86.577046][ T5196] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5195] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5195] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5195] exit_group(0) = ?
[pid 5195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./66/binderfs") = 0
umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./66/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./66/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./66") = 0
mkdir("./67", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5197 attached
<unfinished ...>
[pid 5197] chdir("./67") = 0
[pid 5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5197] setpgid(0, 0 <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5197
[pid 5197] <... setpgid resumed>) = 0
[pid 5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5197] write(3, "1000", 4) = 4
[pid 5197] close(3) = 0
[pid 5197] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5197] memfd_create("syzkaller", 0) = 3
[pid 5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5197] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5197] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5197] close(3) = 0
[pid 5197] mkdir("./file0", 0777) = 0
[ 86.875990][ T5197] loop0: detected capacity change from 0 to 4096
[ 86.893033][ T5197] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 86.901136][ T5197] NILFS (loop0): trying rollback from an earlier position
[ 86.918470][ T5197] NILFS (loop0): recovery complete
[pid 5197] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5197] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5197] chdir("./file0") = 0
[pid 5197] ioctl(4, LOOP_CLR_FD) = 0
[pid 5197] close(4) = 0
[pid 5197] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5197] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 86.924333][ T5198] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5197] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5197] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./67/binderfs") = 0
umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./67/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./67") = 0
mkdir("./68", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5199
./strace-static-x86_64: Process 5199 attached
[pid 5199] chdir("./68") = 0
[pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5199] setpgid(0, 0) = 0
[pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5199] write(3, "1000", 4) = 4
[pid 5199] close(3) = 0
[pid 5199] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5199] memfd_create("syzkaller", 0) = 3
[pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5199] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5199] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5199] close(3) = 0
[pid 5199] mkdir("./file0", 0777) = 0
[ 87.237956][ T5199] loop0: detected capacity change from 0 to 4096
[ 87.255369][ T5199] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 87.263445][ T5199] NILFS (loop0): trying rollback from an earlier position
[ 87.277102][ T5199] NILFS (loop0): recovery complete
[pid 5199] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5199] chdir("./file0") = 0
[pid 5199] ioctl(4, LOOP_CLR_FD) = 0
[pid 5199] close(4) = 0
[pid 5199] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5199] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 87.283197][ T5200] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 87.296569][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 87.296581][ T27] audit: type=1800 audit(1676306775.038:70): pid=5199 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5199] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5199] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5199] exit_group(0) = ?
[pid 5199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./68/binderfs") = 0
umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./68/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./68/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./68") = 0
mkdir("./69", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5201
./strace-static-x86_64: Process 5201 attached
[pid 5201] chdir("./69") = 0
[pid 5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5201] setpgid(0, 0) = 0
[pid 5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5201] write(3, "1000", 4) = 4
[pid 5201] close(3) = 0
[pid 5201] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5201] memfd_create("syzkaller", 0) = 3
[pid 5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5201] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5201] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5201] close(3) = 0
[pid 5201] mkdir("./file0", 0777) = 0
[pid 5201] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5201] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5201] chdir("./file0") = 0
[ 87.607671][ T5201] loop0: detected capacity change from 0 to 4096
[ 87.623866][ T5201] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 87.631964][ T5201] NILFS (loop0): trying rollback from an earlier position
[ 87.646482][ T5201] NILFS (loop0): recovery complete
[pid 5201] ioctl(4, LOOP_CLR_FD) = 0
[pid 5201] close(4) = 0
[pid 5201] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5201] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 87.655432][ T5202] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 87.667640][ T27] audit: type=1800 audit(1676306775.428:71): pid=5201 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5201] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5201] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5201] exit_group(0) = ?
[pid 5201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./69/binderfs") = 0
umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./69/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./69") = 0
mkdir("./70", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5203
./strace-static-x86_64: Process 5203 attached
[pid 5203] chdir("./70") = 0
[pid 5203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5203] setpgid(0, 0) = 0
[pid 5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5203] write(3, "1000", 4) = 4
[pid 5203] close(3) = 0
[pid 5203] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5203] memfd_create("syzkaller", 0) = 3
[pid 5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5203] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5203] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5203] close(3) = 0
[pid 5203] mkdir("./file0", 0777) = 0
[pid 5203] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 87.966401][ T5203] loop0: detected capacity change from 0 to 4096
[ 87.982824][ T5203] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 87.990945][ T5203] NILFS (loop0): trying rollback from an earlier position
[ 88.006727][ T5203] NILFS (loop0): recovery complete
[pid 5203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5203] chdir("./file0") = 0
[pid 5203] ioctl(4, LOOP_CLR_FD) = 0
[pid 5203] close(4) = 0
[pid 5203] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5203] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 88.013037][ T5204] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 88.031768][ T27] audit: type=1800 audit(1676306775.788:72): pid=5203 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5203] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5203] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5203] exit_group(0) = ?
[pid 5203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./70/binderfs") = 0
umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./70/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./70/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./70") = 0
mkdir("./71", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5205
./strace-static-x86_64: Process 5205 attached
[pid 5205] chdir("./71") = 0
[pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5205] setpgid(0, 0) = 0
[pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5205] write(3, "1000", 4) = 4
[pid 5205] close(3) = 0
[pid 5205] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5205] memfd_create("syzkaller", 0) = 3
[pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5205] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5205] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5205] close(3) = 0
[pid 5205] mkdir("./file0", 0777) = 0
[ 88.320083][ T5205] loop0: detected capacity change from 0 to 4096
[ 88.335858][ T5205] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 88.344068][ T5205] NILFS (loop0): trying rollback from an earlier position
[ 88.358078][ T5205] NILFS (loop0): recovery complete
[pid 5205] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5205] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5205] chdir("./file0") = 0
[pid 5205] ioctl(4, LOOP_CLR_FD) = 0
[pid 5205] close(4) = 0
[pid 5205] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5205] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 88.364478][ T5206] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 88.389127][ T27] audit: type=1800 audit(1676306776.148:73): pid=5205 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5205] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5205] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5205] exit_group(0) = ?
[pid 5205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./71/binderfs") = 0
umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./71/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./71") = 0
mkdir("./72", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5207
./strace-static-x86_64: Process 5207 attached
[pid 5207] chdir("./72") = 0
[pid 5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5207] setpgid(0, 0) = 0
[pid 5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5207] write(3, "1000", 4) = 4
[pid 5207] close(3) = 0
[pid 5207] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5207] memfd_create("syzkaller", 0) = 3
[pid 5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5207] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5207] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5207] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5207] close(3) = 0
[pid 5207] mkdir("./file0", 0777) = 0
[ 88.673251][ T5207] loop0: detected capacity change from 0 to 4096
[ 88.689792][ T5207] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 88.697909][ T5207] NILFS (loop0): trying rollback from an earlier position
[ 88.711315][ T5207] NILFS (loop0): recovery complete
[pid 5207] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5207] chdir("./file0") = 0
[pid 5207] ioctl(4, LOOP_CLR_FD) = 0
[pid 5207] close(4) = 0
[pid 5207] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5207] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 88.717586][ T5208] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 88.728504][ T27] audit: type=1800 audit(1676306776.478:74): pid=5207 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5207] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5207] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5207] exit_group(0) = ?
[pid 5207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./72/binderfs") = 0
umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./72/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./72/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./72") = 0
mkdir("./73", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5209
./strace-static-x86_64: Process 5209 attached
[pid 5209] chdir("./73") = 0
[pid 5209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5209] setpgid(0, 0) = 0
[pid 5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5209] write(3, "1000", 4) = 4
[pid 5209] close(3) = 0
[pid 5209] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5209] memfd_create("syzkaller", 0) = 3
[pid 5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5209] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5209] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5209] close(3) = 0
[pid 5209] mkdir("./file0", 0777) = 0
[ 89.023647][ T5209] loop0: detected capacity change from 0 to 4096
[ 89.041305][ T5209] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 89.049427][ T5209] NILFS (loop0): trying rollback from an earlier position
[ 89.063376][ T5209] NILFS (loop0): recovery complete
[pid 5209] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5209] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5209] chdir("./file0") = 0
[pid 5209] ioctl(4, LOOP_CLR_FD) = 0
[pid 5209] close(4) = 0
[pid 5209] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5209] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 89.069815][ T5210] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 89.086264][ T27] audit: type=1800 audit(1676306776.838:75): pid=5209 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5209] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5209] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./73/binderfs") = 0
umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./73/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./73") = 0
mkdir("./74", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5211
./strace-static-x86_64: Process 5211 attached
[pid 5211] chdir("./74") = 0
[pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5211] setpgid(0, 0) = 0
[pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5211] write(3, "1000", 4) = 4
[pid 5211] close(3) = 0
[pid 5211] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5211] memfd_create("syzkaller", 0) = 3
[pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5211] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5211] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5211] close(3) = 0
[pid 5211] mkdir("./file0", 0777) = 0
[ 89.382100][ T5211] loop0: detected capacity change from 0 to 4096
[ 89.398619][ T5211] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 89.406694][ T5211] NILFS (loop0): trying rollback from an earlier position
[ 89.420466][ T5211] NILFS (loop0): recovery complete
[pid 5211] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5211] chdir("./file0") = 0
[pid 5211] ioctl(4, LOOP_CLR_FD) = 0
[pid 5211] close(4) = 0
[pid 5211] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5211] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 89.426609][ T5212] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 89.442695][ T27] audit: type=1800 audit(1676306777.198:76): pid=5211 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5211] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5211] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5211] exit_group(0) = ?
[pid 5211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./74/binderfs") = 0
umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./74/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./74/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./74") = 0
mkdir("./75", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5213
./strace-static-x86_64: Process 5213 attached
[pid 5213] chdir("./75") = 0
[pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5213] setpgid(0, 0) = 0
[pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5213] write(3, "1000", 4) = 4
[pid 5213] close(3) = 0
[pid 5213] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5213] memfd_create("syzkaller", 0) = 3
[pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5213] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5213] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5213] close(3) = 0
[pid 5213] mkdir("./file0", 0777) = 0
[ 89.744158][ T5213] loop0: detected capacity change from 0 to 4096
[ 89.760347][ T5213] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 89.768387][ T5213] NILFS (loop0): trying rollback from an earlier position
[ 89.782601][ T5213] NILFS (loop0): recovery complete
[pid 5213] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5213] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5213] chdir("./file0") = 0
[pid 5213] ioctl(4, LOOP_CLR_FD) = 0
[pid 5213] close(4) = 0
[pid 5213] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5213] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 89.788366][ T5214] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 89.811481][ T27] audit: type=1800 audit(1676306777.568:77): pid=5213 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5213] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5213] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5213] exit_group(0) = ?
[pid 5213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./75/binderfs") = 0
umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./75/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./75") = 0
mkdir("./76", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5215
./strace-static-x86_64: Process 5215 attached
[pid 5215] chdir("./76") = 0
[pid 5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5215] setpgid(0, 0) = 0
[pid 5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5215] write(3, "1000", 4) = 4
[pid 5215] close(3) = 0
[pid 5215] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5215] memfd_create("syzkaller", 0) = 3
[pid 5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5215] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5215] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5215] close(3) = 0
[pid 5215] mkdir("./file0", 0777) = 0
[ 90.120914][ T5215] loop0: detected capacity change from 0 to 4096
[ 90.138334][ T5215] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 90.146545][ T5215] NILFS (loop0): trying rollback from an earlier position
[ 90.160917][ T5215] NILFS (loop0): recovery complete
[pid 5215] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5215] chdir("./file0") = 0
[pid 5215] ioctl(4, LOOP_CLR_FD) = 0
[pid 5215] close(4) = 0
[pid 5215] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5215] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 90.167451][ T5216] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 90.181956][ T27] audit: type=1800 audit(1676306777.948:78): pid=5215 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5215] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5215] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5215] exit_group(0) = ?
[pid 5215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./76/binderfs") = 0
umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./76/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./76") = 0
mkdir("./77", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5217
./strace-static-x86_64: Process 5217 attached
[pid 5217] chdir("./77") = 0
[pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5217] setpgid(0, 0) = 0
[pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5217] write(3, "1000", 4) = 4
[pid 5217] close(3) = 0
[pid 5217] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5217] memfd_create("syzkaller", 0) = 3
[pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5217] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5217] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5217] close(3) = 0
[pid 5217] mkdir("./file0", 0777) = 0
[ 90.489898][ T5217] loop0: detected capacity change from 0 to 4096
[ 90.509738][ T5217] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 90.517812][ T5217] NILFS (loop0): trying rollback from an earlier position
[ 90.531726][ T5217] NILFS (loop0): recovery complete
[pid 5217] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5217] chdir("./file0") = 0
[pid 5217] ioctl(4, LOOP_CLR_FD) = 0
[pid 5217] close(4) = 0
[pid 5217] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5217] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 90.538132][ T5218] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 90.541668][ T27] audit: type=1800 audit(1676306778.298:79): pid=5217 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5217] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5217] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5217] exit_group(0) = ?
[pid 5217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./77/binderfs") = 0
umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./77/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./77/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./77") = 0
mkdir("./78", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5219
./strace-static-x86_64: Process 5219 attached
[pid 5219] chdir("./78") = 0
[pid 5219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5219] setpgid(0, 0) = 0
[pid 5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5219] write(3, "1000", 4) = 4
[pid 5219] close(3) = 0
[pid 5219] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5219] memfd_create("syzkaller", 0) = 3
[pid 5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5219] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5219] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5219] close(3) = 0
[pid 5219] mkdir("./file0", 0777) = 0
[ 90.842835][ T5219] loop0: detected capacity change from 0 to 4096
[ 90.858670][ T5219] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 90.866738][ T5219] NILFS (loop0): trying rollback from an earlier position
[ 90.880108][ T5219] NILFS (loop0): recovery complete
[pid 5219] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5219] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5219] chdir("./file0") = 0
[pid 5219] ioctl(4, LOOP_CLR_FD) = 0
[pid 5219] close(4) = 0
[pid 5219] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5219] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 90.885961][ T5220] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5219] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5219] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=18 /* 0.18 s */} ---
umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./78/binderfs") = 0
umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./78/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./78") = 0
mkdir("./79", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5221
./strace-static-x86_64: Process 5221 attached
[pid 5221] chdir("./79") = 0
[pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5221] setpgid(0, 0) = 0
[pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5221] write(3, "1000", 4) = 4
[pid 5221] close(3) = 0
[pid 5221] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5221] memfd_create("syzkaller", 0) = 3
[pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5221] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5221] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5221] close(3) = 0
[pid 5221] mkdir("./file0", 0777) = 0
[ 91.188024][ T5221] loop0: detected capacity change from 0 to 4096
[ 91.206072][ T5221] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 91.214162][ T5221] NILFS (loop0): trying rollback from an earlier position
[ 91.228259][ T5221] NILFS (loop0): recovery complete
[pid 5221] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5221] chdir("./file0") = 0
[pid 5221] ioctl(4, LOOP_CLR_FD) = 0
[pid 5221] close(4) = 0
[pid 5221] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5221] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 91.234397][ T5222] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5221] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5221] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5221] exit_group(0) = ?
[pid 5221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./79/binderfs") = 0
umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./79/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./79") = 0
mkdir("./80", 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=0x555555db65d0) = 5223
./strace-static-x86_64: Process 5223 attached
[pid 5223] chdir("./80") = 0
[pid 5223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5223] setpgid(0, 0) = 0
[pid 5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5223] write(3, "1000", 4) = 4
[pid 5223] close(3) = 0
[pid 5223] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5223] memfd_create("syzkaller", 0) = 3
[pid 5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5223] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5223] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5223] close(3) = 0
[pid 5223] mkdir("./file0", 0777) = 0
[ 91.540482][ T5223] loop0: detected capacity change from 0 to 4096
[ 91.556561][ T5223] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 91.564575][ T5223] NILFS (loop0): trying rollback from an earlier position
[ 91.578832][ T5223] NILFS (loop0): recovery complete
[pid 5223] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5223] chdir("./file0") = 0
[pid 5223] ioctl(4, LOOP_CLR_FD) = 0
[pid 5223] close(4) = 0
[pid 5223] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5223] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 91.584716][ T5224] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5223] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5223] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5223] exit_group(0) = ?
[pid 5223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5223, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./80/binderfs") = 0
umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./80/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./80/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./80") = 0
mkdir("./81", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5225
./strace-static-x86_64: Process 5225 attached
[pid 5225] chdir("./81") = 0
[pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5225] setpgid(0, 0) = 0
[pid 5225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5225] write(3, "1000", 4) = 4
[pid 5225] close(3) = 0
[pid 5225] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5225] memfd_create("syzkaller", 0) = 3
[pid 5225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5225] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5225] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5225] close(3) = 0
[pid 5225] mkdir("./file0", 0777) = 0
[pid 5225] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5225] chdir("./file0") = 0
[pid 5225] ioctl(4, LOOP_CLR_FD) = 0
[ 91.883717][ T5225] loop0: detected capacity change from 0 to 4096
[ 91.900398][ T5225] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 91.908524][ T5225] NILFS (loop0): trying rollback from an earlier position
[ 91.923038][ T5225] NILFS (loop0): recovery complete
[pid 5225] close(4) = 0
[pid 5225] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5225] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 91.929442][ T5226] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5225] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5225] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./81/binderfs") = 0
umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./81/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./81") = 0
mkdir("./82", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5227
./strace-static-x86_64: Process 5227 attached
[pid 5227] chdir("./82") = 0
[pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5227] setpgid(0, 0) = 0
[pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5227] write(3, "1000", 4) = 4
[pid 5227] close(3) = 0
[pid 5227] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5227] memfd_create("syzkaller", 0) = 3
[pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5227] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5227] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5227] close(3) = 0
[pid 5227] mkdir("./file0", 0777) = 0
[ 92.242907][ T5227] loop0: detected capacity change from 0 to 4096
[ 92.260000][ T5227] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 92.268054][ T5227] NILFS (loop0): trying rollback from an earlier position
[ 92.281256][ T5227] NILFS (loop0): recovery complete
[pid 5227] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5227] chdir("./file0") = 0
[pid 5227] ioctl(4, LOOP_CLR_FD) = 0
[pid 5227] close(4) = 0
[pid 5227] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5227] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 92.287589][ T5228] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 92.308311][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 92.308345][ T27] audit: type=1800 audit(1676306780.068:84): pid=5227 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5227] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5227] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5227] exit_group(0) = ?
[pid 5227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./82/binderfs") = 0
umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./82/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./82/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./82") = 0
mkdir("./83", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5229
./strace-static-x86_64: Process 5229 attached
[pid 5229] chdir("./83") = 0
[pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5229] setpgid(0, 0) = 0
[pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5229] write(3, "1000", 4) = 4
[pid 5229] close(3) = 0
[pid 5229] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5229] memfd_create("syzkaller", 0) = 3
[pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5229] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5229] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5229] close(3) = 0
[pid 5229] mkdir("./file0", 0777) = 0
[pid 5229] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 92.616128][ T5229] loop0: detected capacity change from 0 to 4096
[ 92.632025][ T5229] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 92.640073][ T5229] NILFS (loop0): trying rollback from an earlier position
[ 92.653004][ T5229] NILFS (loop0): recovery complete
[pid 5229] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5229] chdir("./file0") = 0
[pid 5229] ioctl(4, LOOP_CLR_FD) = 0
[pid 5229] close(4) = 0
[pid 5229] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5229] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 92.659555][ T5230] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 92.682024][ T27] audit: type=1800 audit(1676306780.438:85): pid=5229 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5229] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5229] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5229] exit_group(0) = ?
[pid 5229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5229, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./83/binderfs") = 0
umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./83/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./83/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./83") = 0
mkdir("./84", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5231
./strace-static-x86_64: Process 5231 attached
[pid 5231] chdir("./84") = 0
[pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5231] setpgid(0, 0) = 0
[pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5231] write(3, "1000", 4) = 4
[pid 5231] close(3) = 0
[pid 5231] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5231] memfd_create("syzkaller", 0) = 3
[pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5231] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5231] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5231] close(3) = 0
[pid 5231] mkdir("./file0", 0777) = 0
[ 92.960971][ T5231] loop0: detected capacity change from 0 to 4096
[ 92.980601][ T5231] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 92.988728][ T5231] NILFS (loop0): trying rollback from an earlier position
[ 93.002829][ T5231] NILFS (loop0): recovery complete
[pid 5231] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5231] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5231] chdir("./file0") = 0
[pid 5231] ioctl(4, LOOP_CLR_FD) = 0
[pid 5231] close(4) = 0
[pid 5231] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5231] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 93.009273][ T5232] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 93.027709][ T27] audit: type=1800 audit(1676306780.788:86): pid=5231 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5231] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5231] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5231] exit_group(0) = ?
[pid 5231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./84/binderfs") = 0
umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./84/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./84/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./84") = 0
mkdir("./85", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5233
./strace-static-x86_64: Process 5233 attached
[pid 5233] chdir("./85") = 0
[pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5233] setpgid(0, 0) = 0
[pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5233] write(3, "1000", 4) = 4
[pid 5233] close(3) = 0
[pid 5233] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5233] memfd_create("syzkaller", 0) = 3
[pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5233] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5233] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5233] close(3) = 0
[pid 5233] mkdir("./file0", 0777) = 0
[ 93.332469][ T5233] loop0: detected capacity change from 0 to 4096
[ 93.349766][ T5233] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 93.357832][ T5233] NILFS (loop0): trying rollback from an earlier position
[ 93.371157][ T5233] NILFS (loop0): recovery complete
[pid 5233] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5233] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5233] chdir("./file0") = 0
[pid 5233] ioctl(4, LOOP_CLR_FD) = 0
[pid 5233] close(4) = 0
[pid 5233] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5233] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 93.377496][ T5234] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 93.392716][ T27] audit: type=1800 audit(1676306781.158:87): pid=5233 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5233] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5233] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5233] exit_group(0) = ?
[pid 5233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./85/binderfs") = 0
umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./85/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./85/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./85") = 0
mkdir("./86", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5235
./strace-static-x86_64: Process 5235 attached
[pid 5235] chdir("./86") = 0
[pid 5235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5235] setpgid(0, 0) = 0
[pid 5235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5235] write(3, "1000", 4) = 4
[pid 5235] close(3) = 0
[pid 5235] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5235] memfd_create("syzkaller", 0) = 3
[pid 5235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5235] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5235] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5235] close(3) = 0
[pid 5235] mkdir("./file0", 0777) = 0
[pid 5235] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5235] chdir("./file0") = 0
[ 93.706092][ T5235] loop0: detected capacity change from 0 to 4096
[ 93.723389][ T5235] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 93.731569][ T5235] NILFS (loop0): trying rollback from an earlier position
[ 93.745870][ T5235] NILFS (loop0): recovery complete
[pid 5235] ioctl(4, LOOP_CLR_FD) = 0
[pid 5235] close(4) = 0
[pid 5235] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5235] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 93.753442][ T5236] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 93.773523][ T27] audit: type=1800 audit(1676306781.518:88): pid=5235 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5235] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5235] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=18 /* 0.18 s */} ---
umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./86/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./86/binderfs") = 0
umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./86/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./86/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./86") = 0
mkdir("./87", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5237
./strace-static-x86_64: Process 5237 attached
[pid 5237] chdir("./87") = 0
[pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5237] setpgid(0, 0) = 0
[pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5237] write(3, "1000", 4) = 4
[pid 5237] close(3) = 0
[pid 5237] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5237] memfd_create("syzkaller", 0) = 3
[pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5237] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5237] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5237] close(3) = 0
[pid 5237] mkdir("./file0", 0777) = 0
[ 94.081179][ T5237] loop0: detected capacity change from 0 to 4096
[ 94.098083][ T5237] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 94.106216][ T5237] NILFS (loop0): trying rollback from an earlier position
[ 94.121371][ T5237] NILFS (loop0): recovery complete
[pid 5237] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5237] chdir("./file0") = 0
[pid 5237] ioctl(4, LOOP_CLR_FD) = 0
[pid 5237] close(4) = 0
[pid 5237] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5237] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 94.127261][ T5238] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 94.146503][ T27] audit: type=1800 audit(1676306781.908:89): pid=5237 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5237] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5237] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5237] exit_group(0) = ?
[pid 5237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./87/binderfs") = 0
umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./87/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./87/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./87") = 0
mkdir("./88", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5239
./strace-static-x86_64: Process 5239 attached
[pid 5239] chdir("./88") = 0
[pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5239] setpgid(0, 0) = 0
[pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5239] write(3, "1000", 4) = 4
[pid 5239] close(3) = 0
[pid 5239] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5239] memfd_create("syzkaller", 0) = 3
[pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5239] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5239] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5239] close(3) = 0
[pid 5239] mkdir("./file0", 0777) = 0
[pid 5239] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 94.452459][ T5239] loop0: detected capacity change from 0 to 4096
[ 94.468873][ T5239] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 94.476981][ T5239] NILFS (loop0): trying rollback from an earlier position
[ 94.492520][ T5239] NILFS (loop0): recovery complete
[pid 5239] chdir("./file0") = 0
[pid 5239] ioctl(4, LOOP_CLR_FD) = 0
[pid 5239] close(4) = 0
[pid 5239] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5239] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 94.498618][ T5240] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 94.529352][ T27] audit: type=1800 audit(1676306782.288:90): pid=5239 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5239] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5239] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5239] exit_group(0) = ?
[pid 5239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./88/binderfs") = 0
umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./88/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./88/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./88") = 0
mkdir("./89", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5241
./strace-static-x86_64: Process 5241 attached
[pid 5241] chdir("./89") = 0
[pid 5241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5241] setpgid(0, 0) = 0
[pid 5241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5241] write(3, "1000", 4) = 4
[pid 5241] close(3) = 0
[pid 5241] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5241] memfd_create("syzkaller", 0) = 3
[pid 5241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5241] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5241] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5241] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5241] close(3) = 0
[pid 5241] mkdir("./file0", 0777) = 0
[ 94.820865][ T5241] loop0: detected capacity change from 0 to 4096
[ 94.837641][ T5241] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 94.845717][ T5241] NILFS (loop0): trying rollback from an earlier position
[ 94.860650][ T5241] NILFS (loop0): recovery complete
[pid 5241] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5241] chdir("./file0") = 0
[pid 5241] ioctl(4, LOOP_CLR_FD) = 0
[pid 5241] close(4) = 0
[pid 5241] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5241] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 94.866905][ T5242] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 94.886213][ T27] audit: type=1800 audit(1676306782.628:91): pid=5241 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5241] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5241] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5241] exit_group(0) = ?
[pid 5241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5241, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./89/binderfs") = 0
umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./89/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./89/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./89") = 0
mkdir("./90", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5243
./strace-static-x86_64: Process 5243 attached
[pid 5243] chdir("./90") = 0
[pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5243] setpgid(0, 0) = 0
[pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5243] write(3, "1000", 4) = 4
[pid 5243] close(3) = 0
[pid 5243] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5243] memfd_create("syzkaller", 0) = 3
[pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5243] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5243] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5243] close(3) = 0
[pid 5243] mkdir("./file0", 0777) = 0
[pid 5243] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 95.177855][ T5243] loop0: detected capacity change from 0 to 4096
[ 95.195232][ T5243] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 95.203292][ T5243] NILFS (loop0): trying rollback from an earlier position
[ 95.217407][ T5243] NILFS (loop0): recovery complete
[pid 5243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5243] chdir("./file0") = 0
[pid 5243] ioctl(4, LOOP_CLR_FD) = 0
[pid 5243] close(4) = 0
[pid 5243] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5243] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 95.223423][ T5244] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 95.241119][ T27] audit: type=1800 audit(1676306782.998:92): pid=5243 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5243] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5243] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5243] exit_group(0) = ?
[pid 5243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./90/binderfs") = 0
umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./90/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./90") = 0
mkdir("./91", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5245
./strace-static-x86_64: Process 5245 attached
[pid 5245] chdir("./91") = 0
[pid 5245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5245] setpgid(0, 0) = 0
[pid 5245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5245] write(3, "1000", 4) = 4
[pid 5245] close(3) = 0
[pid 5245] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5245] memfd_create("syzkaller", 0) = 3
[pid 5245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5245] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5245] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5245] close(3) = 0
[pid 5245] mkdir("./file0", 0777) = 0
[ 95.539729][ T5245] loop0: detected capacity change from 0 to 4096
[ 95.556668][ T5245] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 95.564735][ T5245] NILFS (loop0): trying rollback from an earlier position
[ 95.579160][ T5245] NILFS (loop0): recovery complete
[pid 5245] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5245] chdir("./file0") = 0
[pid 5245] ioctl(4, LOOP_CLR_FD) = 0
[pid 5245] close(4) = 0
[pid 5245] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5245] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 95.585008][ T5246] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 95.616742][ T27] audit: type=1800 audit(1676306783.378:93): pid=5245 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5245] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5245] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./91/binderfs") = 0
umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./91/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./91/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./91") = 0
mkdir("./92", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5247
./strace-static-x86_64: Process 5247 attached
[pid 5247] chdir("./92") = 0
[pid 5247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5247] setpgid(0, 0) = 0
[pid 5247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5247] write(3, "1000", 4) = 4
[pid 5247] close(3) = 0
[pid 5247] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5247] memfd_create("syzkaller", 0) = 3
[pid 5247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5247] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5247] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5247] close(3) = 0
[pid 5247] mkdir("./file0", 0777) = 0
[pid 5247] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 95.887482][ T5247] loop0: detected capacity change from 0 to 4096
[ 95.905384][ T5247] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 95.913430][ T5247] NILFS (loop0): trying rollback from an earlier position
[ 95.926737][ T5247] NILFS (loop0): recovery complete
[pid 5247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5247] chdir("./file0") = 0
[pid 5247] ioctl(4, LOOP_CLR_FD) = 0
[pid 5247] close(4) = 0
[pid 5247] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5247] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 95.932485][ T5248] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5247] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5247] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5247] exit_group(0) = ?
[pid 5247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5247, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./92/binderfs") = 0
umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./92/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./92/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./92") = 0
mkdir("./93", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5249
./strace-static-x86_64: Process 5249 attached
[pid 5249] chdir("./93") = 0
[pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5249] setpgid(0, 0) = 0
[pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5249] write(3, "1000", 4) = 4
[pid 5249] close(3) = 0
[pid 5249] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5249] memfd_create("syzkaller", 0) = 3
[pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5249] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5249] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5249] close(3) = 0
[pid 5249] mkdir("./file0", 0777) = 0
[ 96.237759][ T5249] loop0: detected capacity change from 0 to 4096
[ 96.253649][ T5249] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 96.262002][ T5249] NILFS (loop0): trying rollback from an earlier position
[ 96.277501][ T5249] NILFS (loop0): recovery complete
[pid 5249] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5249] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5249] chdir("./file0") = 0
[pid 5249] ioctl(4, LOOP_CLR_FD) = 0
[pid 5249] close(4) = 0
[pid 5249] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5249] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 96.283338][ T5250] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5249] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5249] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5249] exit_group(0) = ?
[pid 5249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./93/binderfs") = 0
umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./93/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./93") = 0
mkdir("./94", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5251
./strace-static-x86_64: Process 5251 attached
[pid 5251] chdir("./94") = 0
[pid 5251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5251] setpgid(0, 0) = 0
[pid 5251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5251] write(3, "1000", 4) = 4
[pid 5251] close(3) = 0
[pid 5251] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5251] memfd_create("syzkaller", 0) = 3
[pid 5251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5251] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5251] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5251] close(3) = 0
[pid 5251] mkdir("./file0", 0777) = 0
[ 96.578538][ T5251] loop0: detected capacity change from 0 to 4096
[ 96.596257][ T5251] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 96.604264][ T5251] NILFS (loop0): trying rollback from an earlier position
[ 96.618634][ T5251] NILFS (loop0): recovery complete
[pid 5251] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5251] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5251] chdir("./file0") = 0
[pid 5251] ioctl(4, LOOP_CLR_FD) = 0
[pid 5251] close(4) = 0
[pid 5251] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5251] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 96.624625][ T5252] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5251] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5251] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./94/binderfs") = 0
umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./94/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./94") = 0
mkdir("./95", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5253
./strace-static-x86_64: Process 5253 attached
[pid 5253] chdir("./95") = 0
[pid 5253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5253] setpgid(0, 0) = 0
[pid 5253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5253] write(3, "1000", 4) = 4
[pid 5253] close(3) = 0
[pid 5253] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5253] memfd_create("syzkaller", 0) = 3
[pid 5253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5253] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5253] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5253] close(3) = 0
[pid 5253] mkdir("./file0", 0777) = 0
[ 96.932724][ T5253] loop0: detected capacity change from 0 to 4096
[ 96.949672][ T5253] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 96.957790][ T5253] NILFS (loop0): trying rollback from an earlier position
[ 96.971398][ T5253] NILFS (loop0): recovery complete
[pid 5253] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5253] chdir("./file0") = 0
[pid 5253] ioctl(4, LOOP_CLR_FD) = 0
[pid 5253] close(4) = 0
[pid 5253] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5253] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 96.977244][ T5254] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5253] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5253] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5253] exit_group(0) = ?
[pid 5253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5253, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./95/binderfs") = 0
umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./95/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./95/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./95") = 0
mkdir("./96", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached
, child_tidptr=0x555555db65d0) = 5255
[pid 5255] chdir("./96") = 0
[pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5255] setpgid(0, 0) = 0
[pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5255] write(3, "1000", 4) = 4
[pid 5255] close(3) = 0
[pid 5255] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5255] memfd_create("syzkaller", 0) = 3
[pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5255] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5255] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5255] close(3) = 0
[pid 5255] mkdir("./file0", 0777) = 0
[ 97.268626][ T5255] loop0: detected capacity change from 0 to 4096
[ 97.285470][ T5255] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 97.293642][ T5255] NILFS (loop0): trying rollback from an earlier position
[ 97.307119][ T5255] NILFS (loop0): recovery complete
[pid 5255] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5255] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5255] chdir("./file0") = 0
[pid 5255] ioctl(4, LOOP_CLR_FD) = 0
[pid 5255] close(4) = 0
[pid 5255] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5255] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 97.313769][ T5256] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 97.337654][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 97.337665][ T27] audit: type=1800 audit(1676306785.098:98): pid=5255 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5255] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5255] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5255] exit_group(0) = ?
[pid 5255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./96/binderfs") = 0
umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./96/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./96") = 0
mkdir("./97", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5257
./strace-static-x86_64: Process 5257 attached
[pid 5257] chdir("./97") = 0
[pid 5257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5257] setpgid(0, 0) = 0
[pid 5257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5257] write(3, "1000", 4) = 4
[pid 5257] close(3) = 0
[pid 5257] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5257] memfd_create("syzkaller", 0) = 3
[pid 5257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5257] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5257] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5257] close(3) = 0
[pid 5257] mkdir("./file0", 0777) = 0
[ 97.634862][ T5257] loop0: detected capacity change from 0 to 4096
[ 97.652510][ T5257] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 97.660590][ T5257] NILFS (loop0): trying rollback from an earlier position
[ 97.674252][ T5257] NILFS (loop0): recovery complete
[pid 5257] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5257] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5257] chdir("./file0") = 0
[pid 5257] ioctl(4, LOOP_CLR_FD) = 0
[pid 5257] close(4) = 0
[pid 5257] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5257] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 97.680460][ T5258] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 97.683884][ T27] audit: type=1800 audit(1676306785.448:99): pid=5257 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5257] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5257] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5257] exit_group(0) = ?
[pid 5257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5257, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./97/binderfs") = 0
umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./97/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./97") = 0
mkdir("./98", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5259
./strace-static-x86_64: Process 5259 attached
[pid 5259] chdir("./98") = 0
[pid 5259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5259] setpgid(0, 0) = 0
[pid 5259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5259] write(3, "1000", 4) = 4
[pid 5259] close(3) = 0
[pid 5259] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5259] memfd_create("syzkaller", 0) = 3
[pid 5259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5259] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5259] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5259] close(3) = 0
[pid 5259] mkdir("./file0", 0777) = 0
[ 97.980667][ T5259] loop0: detected capacity change from 0 to 4096
[ 97.997862][ T5259] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 98.005917][ T5259] NILFS (loop0): trying rollback from an earlier position
[ 98.020341][ T5259] NILFS (loop0): recovery complete
[pid 5259] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5259] chdir("./file0") = 0
[pid 5259] ioctl(4, LOOP_CLR_FD) = 0
[pid 5259] close(4) = 0
[pid 5259] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5259] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 98.026531][ T5260] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 98.047969][ T27] audit: type=1800 audit(1676306785.808:100): pid=5259 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5259] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5259] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5259] exit_group(0) = ?
[pid 5259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5259, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./98/binderfs") = 0
umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./98/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./98/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./98") = 0
mkdir("./99", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5261
./strace-static-x86_64: Process 5261 attached
[pid 5261] chdir("./99") = 0
[pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5261] setpgid(0, 0) = 0
[pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5261] write(3, "1000", 4) = 4
[pid 5261] close(3) = 0
[pid 5261] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5261] memfd_create("syzkaller", 0) = 3
[pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5261] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5261] close(3) = 0
[pid 5261] mkdir("./file0", 0777) = 0
[ 98.374457][ T5261] loop0: detected capacity change from 0 to 4096
[ 98.392215][ T5261] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 98.400315][ T5261] NILFS (loop0): trying rollback from an earlier position
[ 98.414333][ T5261] NILFS (loop0): recovery complete
[pid 5261] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5261] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5261] chdir("./file0") = 0
[pid 5261] ioctl(4, LOOP_CLR_FD) = 0
[pid 5261] close(4) = 0
[pid 5261] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5261] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 98.420240][ T5262] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 98.436280][ T27] audit: type=1800 audit(1676306786.188:101): pid=5261 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5261] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5261] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5261] exit_group(0) = ?
[pid 5261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./99/binderfs") = 0
umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./99/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./99/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./99") = 0
mkdir("./100", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5263 attached
, child_tidptr=0x555555db65d0) = 5263
[pid 5263] chdir("./100") = 0
[pid 5263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5263] setpgid(0, 0) = 0
[pid 5263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5263] write(3, "1000", 4) = 4
[pid 5263] close(3) = 0
[pid 5263] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5263] memfd_create("syzkaller", 0) = 3
[pid 5263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5263] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5263] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5263] close(3) = 0
[pid 5263] mkdir("./file0", 0777) = 0
[ 98.728916][ T5263] loop0: detected capacity change from 0 to 4096
[ 98.744994][ T5263] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 98.753151][ T5263] NILFS (loop0): trying rollback from an earlier position
[ 98.767214][ T5263] NILFS (loop0): recovery complete
[pid 5263] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5263] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5263] chdir("./file0") = 0
[pid 5263] ioctl(4, LOOP_CLR_FD) = 0
[pid 5263] close(4) = 0
[pid 5263] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5263] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 98.773034][ T5264] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 98.789529][ T27] audit: type=1800 audit(1676306786.548:102): pid=5263 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5263] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5263] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./100/binderfs") = 0
umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./100/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./100/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./100") = 0
mkdir("./101", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5265
./strace-static-x86_64: Process 5265 attached
[pid 5265] chdir("./101") = 0
[pid 5265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5265] setpgid(0, 0) = 0
[pid 5265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5265] write(3, "1000", 4) = 4
[pid 5265] close(3) = 0
[pid 5265] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5265] memfd_create("syzkaller", 0) = 3
[pid 5265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5265] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5265] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5265] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5265] close(3) = 0
[pid 5265] mkdir("./file0", 0777) = 0
[ 99.073925][ T5265] loop0: detected capacity change from 0 to 4096
[ 99.089650][ T5265] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 99.097756][ T5265] NILFS (loop0): trying rollback from an earlier position
[ 99.110760][ T5265] NILFS (loop0): recovery complete
[pid 5265] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5265] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5265] chdir("./file0") = 0
[pid 5265] ioctl(4, LOOP_CLR_FD) = 0
[pid 5265] close(4) = 0
[pid 5265] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5265] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 99.116623][ T5266] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 99.145332][ T27] audit: type=1800 audit(1676306786.898:103): pid=5265 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5265] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5265] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5265] exit_group(0) = ?
[pid 5265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5265, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./101/binderfs") = 0
umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./101/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./101") = 0
mkdir("./102", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5268
./strace-static-x86_64: Process 5268 attached
[pid 5268] chdir("./102") = 0
[pid 5268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5268] setpgid(0, 0) = 0
[pid 5268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5268] write(3, "1000", 4) = 4
[pid 5268] close(3) = 0
[pid 5268] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5268] memfd_create("syzkaller", 0) = 3
[pid 5268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5268] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5268] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5268] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5268] close(3) = 0
[pid 5268] mkdir("./file0", 0777) = 0
[pid 5268] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 99.437162][ T5268] loop0: detected capacity change from 0 to 4096
[ 99.455018][ T5268] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 99.463126][ T5268] NILFS (loop0): trying rollback from an earlier position
[ 99.477519][ T5268] NILFS (loop0): recovery complete
[pid 5268] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5268] chdir("./file0") = 0
[pid 5268] ioctl(4, LOOP_CLR_FD) = 0
[pid 5268] close(4) = 0
[pid 5268] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5268] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 99.483350][ T5269] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 99.499599][ T27] audit: type=1800 audit(1676306787.258:104): pid=5268 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5268] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5268] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5268] exit_group(0) = ?
[pid 5268] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5268, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./102/binderfs") = 0
umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./102/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./102/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./102") = 0
mkdir("./103", 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=0x555555db65d0) = 5271
./strace-static-x86_64: Process 5271 attached
[pid 5271] chdir("./103") = 0
[pid 5271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5271] setpgid(0, 0) = 0
[pid 5271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5271] write(3, "1000", 4) = 4
[pid 5271] close(3) = 0
[pid 5271] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5271] memfd_create("syzkaller", 0) = 3
[pid 5271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5271] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5271] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5271] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5271] close(3) = 0
[pid 5271] mkdir("./file0", 0777) = 0
[pid 5271] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5271] chdir("./file0") = 0
[pid 5271] ioctl(4, LOOP_CLR_FD) = 0
[pid 5271] close(4) = 0
[ 99.799654][ T5271] loop0: detected capacity change from 0 to 4096
[ 99.817090][ T5271] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 99.825187][ T5271] NILFS (loop0): trying rollback from an earlier position
[ 99.839331][ T5271] NILFS (loop0): recovery complete
[pid 5271] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5271] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 99.845302][ T5272] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 99.852016][ T27] audit: type=1800 audit(1676306787.608:105): pid=5271 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5271] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5271] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5271] exit_group(0) = ?
[pid 5271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5271, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./103/binderfs") = 0
umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./103/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./103") = 0
mkdir("./104", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5273
./strace-static-x86_64: Process 5273 attached
[pid 5273] chdir("./104") = 0
[pid 5273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5273] setpgid(0, 0) = 0
[pid 5273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5273] write(3, "1000", 4) = 4
[pid 5273] close(3) = 0
[pid 5273] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5273] memfd_create("syzkaller", 0) = 3
[pid 5273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5273] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5273] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5273] close(3) = 0
[pid 5273] mkdir("./file0", 0777) = 0
[ 100.142291][ T5273] loop0: detected capacity change from 0 to 4096
[ 100.157928][ T5273] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 100.166034][ T5273] NILFS (loop0): trying rollback from an earlier position
[ 100.180347][ T5273] NILFS (loop0): recovery complete
[pid 5273] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5273] chdir("./file0") = 0
[pid 5273] ioctl(4, LOOP_CLR_FD) = 0
[pid 5273] close(4) = 0
[pid 5273] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5273] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 100.186123][ T5274] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 100.199388][ T27] audit: type=1800 audit(1676306787.958:106): pid=5273 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5273] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5273] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5273] exit_group(0) = ?
[pid 5273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5273, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./104/binderfs") = 0
umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./104/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./104/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./104") = 0
mkdir("./105", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5275
./strace-static-x86_64: Process 5275 attached
[pid 5275] chdir("./105") = 0
[pid 5275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5275] setpgid(0, 0) = 0
[pid 5275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5275] write(3, "1000", 4) = 4
[pid 5275] close(3) = 0
[pid 5275] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5275] memfd_create("syzkaller", 0) = 3
[pid 5275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5275] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5275] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5275] close(3) = 0
[pid 5275] mkdir("./file0", 0777) = 0
[ 100.482529][ T5275] loop0: detected capacity change from 0 to 4096
[ 100.499366][ T5275] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 100.507454][ T5275] NILFS (loop0): trying rollback from an earlier position
[ 100.520961][ T5275] NILFS (loop0): recovery complete
[pid 5275] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5275] chdir("./file0") = 0
[pid 5275] ioctl(4, LOOP_CLR_FD) = 0
[pid 5275] close(4) = 0
[pid 5275] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5275] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 100.527268][ T5276] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 100.546207][ T27] audit: type=1800 audit(1676306788.288:107): pid=5275 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5275] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5275] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./105/binderfs") = 0
umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./105/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./105") = 0
mkdir("./106", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5278
./strace-static-x86_64: Process 5278 attached
[pid 5278] chdir("./106") = 0
[pid 5278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5278] setpgid(0, 0) = 0
[pid 5278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5278] write(3, "1000", 4) = 4
[pid 5278] close(3) = 0
[pid 5278] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5278] memfd_create("syzkaller", 0) = 3
[pid 5278] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5278] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5278] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5278] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5278] close(3) = 0
[pid 5278] mkdir("./file0", 0777) = 0
[ 100.842231][ T5278] loop0: detected capacity change from 0 to 4096
[ 100.859247][ T5278] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 100.867274][ T5278] NILFS (loop0): trying rollback from an earlier position
[ 100.881082][ T5278] NILFS (loop0): recovery complete
[pid 5278] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5278] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5278] chdir("./file0") = 0
[pid 5278] ioctl(4, LOOP_CLR_FD) = 0
[pid 5278] close(4) = 0
[pid 5278] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5278] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 100.886921][ T5279] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5278] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5278] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5278] exit_group(0) = ?
[pid 5278] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5278, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./106/binderfs") = 0
umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./106/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./106/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./106") = 0
mkdir("./107", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5280
./strace-static-x86_64: Process 5280 attached
[pid 5280] chdir("./107") = 0
[pid 5280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5280] setpgid(0, 0) = 0
[pid 5280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5280] write(3, "1000", 4) = 4
[pid 5280] close(3) = 0
[pid 5280] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5280] memfd_create("syzkaller", 0) = 3
[pid 5280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5280] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5280] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5280] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5280] close(3) = 0
[pid 5280] mkdir("./file0", 0777) = 0
[pid 5280] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5280] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5280] chdir("./file0") = 0
[pid 5280] ioctl(4, LOOP_CLR_FD) = 0
[ 101.195686][ T5280] loop0: detected capacity change from 0 to 4096
[ 101.212678][ T5280] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 101.220871][ T5280] NILFS (loop0): trying rollback from an earlier position
[ 101.234706][ T5280] NILFS (loop0): recovery complete
[pid 5280] close(4) = 0
[pid 5280] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5280] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 101.241204][ T5281] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5280] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5280] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5280] exit_group(0) = ?
[pid 5280] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5280, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./107/binderfs") = 0
umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./107/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./107/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./107") = 0
mkdir("./108", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5282 attached
, child_tidptr=0x555555db65d0) = 5282
[pid 5282] chdir("./108") = 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
[pid 5282] memfd_create("syzkaller", 0) = 3
[pid 5282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5282] munmap(0x7f2ef2e77000, 2097152) = 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] mkdir("./file0", 0777) = 0
[ 101.534607][ T5282] loop0: detected capacity change from 0 to 4096
[ 101.551425][ T5282] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 101.559531][ T5282] NILFS (loop0): trying rollback from an earlier position
[pid 5282] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5282] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5282] chdir("./file0") = 0
[pid 5282] ioctl(4, LOOP_CLR_FD) = 0
[pid 5282] close(4) = 0
[pid 5282] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5282] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 101.580027][ T5282] NILFS (loop0): recovery complete
[ 101.586931][ T5284] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5282] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5282] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./108/binderfs") = 0
umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./108/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./108") = 0
mkdir("./109", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5285
./strace-static-x86_64: Process 5285 attached
[pid 5285] chdir("./109") = 0
[pid 5285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5285] setpgid(0, 0) = 0
[pid 5285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5285] write(3, "1000", 4) = 4
[pid 5285] close(3) = 0
[pid 5285] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5285] memfd_create("syzkaller", 0) = 3
[pid 5285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5285] munmap(0x7f2ef2e77000, 2097152) = 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] mkdir("./file0", 0777) = 0
[ 101.902199][ T5285] loop0: detected capacity change from 0 to 4096
[ 101.918795][ T5285] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 101.926900][ T5285] NILFS (loop0): trying rollback from an earlier position
[ 101.940626][ T5285] NILFS (loop0): recovery complete
[pid 5285] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5285] chdir("./file0") = 0
[pid 5285] ioctl(4, LOOP_CLR_FD) = 0
[pid 5285] close(4) = 0
[pid 5285] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5285] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 101.946769][ T5286] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5285] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5285] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=17 /* 0.17 s */} ---
umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./109/binderfs") = 0
umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./109/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./109/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./109") = 0
mkdir("./110", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5288
./strace-static-x86_64: Process 5288 attached
[pid 5288] chdir("./110") = 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] memfd_create("syzkaller", 0) = 3
[pid 5288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5288] munmap(0x7f2ef2e77000, 2097152) = 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] mkdir("./file0", 0777) = 0
[ 102.292611][ T5288] loop0: detected capacity change from 0 to 4096
[ 102.308938][ T5288] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 102.317008][ T5288] NILFS (loop0): trying rollback from an earlier position
[ 102.330527][ T5288] NILFS (loop0): recovery complete
[pid 5288] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5288] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5288] chdir("./file0") = 0
[pid 5288] ioctl(4, LOOP_CLR_FD) = 0
[pid 5288] close(4) = 0
[pid 5288] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5288] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 102.337270][ T5290] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 102.358330][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 102.358343][ T27] audit: type=1800 audit(1676306790.118:112): pid=5288 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5288] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5288] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./110/binderfs") = 0
umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./110/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./110/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./110") = 0
mkdir("./111", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5291 attached
<unfinished ...>
[pid 5291] chdir("./111") = 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 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5291
[pid 5291] write(3, "1000", 4) = 4
[pid 5291] close(3) = 0
[pid 5291] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5291] memfd_create("syzkaller", 0) = 3
[pid 5291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5291] munmap(0x7f2ef2e77000, 2097152) = 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] mkdir("./file0", 0777) = 0
[ 102.651981][ T5291] loop0: detected capacity change from 0 to 4096
[ 102.667914][ T5291] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 102.675907][ T5291] NILFS (loop0): trying rollback from an earlier position
[ 102.691431][ T5291] NILFS (loop0): recovery complete
[pid 5291] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5291] chdir("./file0") = 0
[pid 5291] ioctl(4, LOOP_CLR_FD) = 0
[pid 5291] close(4) = 0
[pid 5291] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5291] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 102.697795][ T5292] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 102.724590][ T27] audit: type=1800 audit(1676306790.478:113): pid=5291 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5291] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5291] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=19 /* 0.19 s */} ---
umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./111/binderfs") = 0
umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./111/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./111") = 0
mkdir("./112", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5293
./strace-static-x86_64: Process 5293 attached
[pid 5293] chdir("./112") = 0
[pid 5293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5293] setpgid(0, 0) = 0
[pid 5293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5293] write(3, "1000", 4) = 4
[pid 5293] close(3) = 0
[pid 5293] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5293] memfd_create("syzkaller", 0) = 3
[pid 5293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5293] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5293] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5293] close(3) = 0
[pid 5293] mkdir("./file0", 0777) = 0
[ 102.999890][ T5293] loop0: detected capacity change from 0 to 4096
[ 103.015980][ T5293] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 103.024333][ T5293] NILFS (loop0): trying rollback from an earlier position
[ 103.038084][ T5293] NILFS (loop0): recovery complete
[pid 5293] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5293] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5293] chdir("./file0") = 0
[pid 5293] ioctl(4, LOOP_CLR_FD) = 0
[pid 5293] close(4) = 0
[pid 5293] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5293] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 103.044068][ T5294] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 103.059069][ T27] audit: type=1800 audit(1676306790.818:114): pid=5293 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5293] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5293] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5293] exit_group(0) = ?
[pid 5293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5293, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./112/binderfs") = 0
umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./112/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./112/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./112") = 0
mkdir("./113", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5295 attached
, child_tidptr=0x555555db65d0) = 5295
[pid 5295] chdir("./113") = 0
[pid 5295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5295] setpgid(0, 0) = 0
[pid 5295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5295] write(3, "1000", 4) = 4
[pid 5295] close(3) = 0
[pid 5295] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5295] memfd_create("syzkaller", 0) = 3
[pid 5295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5295] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5295] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5295] close(3) = 0
[pid 5295] mkdir("./file0", 0777) = 0
[pid 5295] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5295] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 103.358246][ T5295] loop0: detected capacity change from 0 to 4096
[ 103.372958][ T5295] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 103.381061][ T5295] NILFS (loop0): trying rollback from an earlier position
[ 103.394645][ T5295] NILFS (loop0): recovery complete
[pid 5295] chdir("./file0") = 0
[pid 5295] ioctl(4, LOOP_CLR_FD) = 0
[pid 5295] close(4) = 0
[pid 5295] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5295] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 103.401077][ T5296] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 103.428238][ T27] audit: type=1800 audit(1676306791.188:115): pid=5295 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5295] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5295] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5295] exit_group(0) = ?
[pid 5295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5295, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./113/binderfs") = 0
umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./113/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./113/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./113/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./113") = 0
mkdir("./114", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5297
./strace-static-x86_64: Process 5297 attached
[pid 5297] chdir("./114") = 0
[pid 5297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5297] setpgid(0, 0) = 0
[pid 5297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5297] write(3, "1000", 4) = 4
[pid 5297] close(3) = 0
[pid 5297] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5297] memfd_create("syzkaller", 0) = 3
[pid 5297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5297] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5297] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5297] close(3) = 0
[pid 5297] mkdir("./file0", 0777) = 0
[ 103.731084][ T5297] loop0: detected capacity change from 0 to 4096
[ 103.747038][ T5297] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 103.755047][ T5297] NILFS (loop0): trying rollback from an earlier position
[ 103.768785][ T5297] NILFS (loop0): recovery complete
[pid 5297] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5297] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5297] chdir("./file0") = 0
[pid 5297] ioctl(4, LOOP_CLR_FD) = 0
[pid 5297] close(4) = 0
[pid 5297] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5297] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 103.775001][ T5298] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 103.787671][ T27] audit: type=1800 audit(1676306791.548:116): pid=5297 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5297] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5297] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./114", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./114", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./114/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./114/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./114/binderfs") = 0
umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./114/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./114/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./114/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./114/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./114") = 0
mkdir("./115", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5299
./strace-static-x86_64: Process 5299 attached
[pid 5299] chdir("./115") = 0
[pid 5299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5299] setpgid(0, 0) = 0
[pid 5299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5299] write(3, "1000", 4) = 4
[pid 5299] close(3) = 0
[pid 5299] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5299] memfd_create("syzkaller", 0) = 3
[pid 5299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5299] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5299] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5299] close(3) = 0
[pid 5299] mkdir("./file0", 0777) = 0
[ 104.082568][ T5299] loop0: detected capacity change from 0 to 4096
[ 104.097474][ T5299] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 104.105567][ T5299] NILFS (loop0): trying rollback from an earlier position
[ 104.121083][ T5299] NILFS (loop0): recovery complete
[pid 5299] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5299] chdir("./file0") = 0
[pid 5299] ioctl(4, LOOP_CLR_FD) = 0
[pid 5299] close(4) = 0
[pid 5299] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5299] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 104.127166][ T5300] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 104.147801][ T27] audit: type=1800 audit(1676306791.908:117): pid=5299 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5299] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5299] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5299] exit_group(0) = ?
[pid 5299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5299, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./115", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./115", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./115/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./115/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./115/binderfs") = 0
umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./115/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./115/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./115/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./115/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./115") = 0
mkdir("./116", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5301
./strace-static-x86_64: Process 5301 attached
[pid 5301] chdir("./116") = 0
[pid 5301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5301] setpgid(0, 0) = 0
[pid 5301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5301] write(3, "1000", 4) = 4
[pid 5301] close(3) = 0
[pid 5301] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5301] memfd_create("syzkaller", 0) = 3
[pid 5301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5301] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5301] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5301] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5301] close(3) = 0
[pid 5301] mkdir("./file0", 0777) = 0
[ 104.435190][ T5301] loop0: detected capacity change from 0 to 4096
[ 104.452872][ T5301] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 104.461025][ T5301] NILFS (loop0): trying rollback from an earlier position
[ 104.474336][ T5301] NILFS (loop0): recovery complete
[pid 5301] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5301] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5301] chdir("./file0") = 0
[pid 5301] ioctl(4, LOOP_CLR_FD) = 0
[pid 5301] close(4) = 0
[pid 5301] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5301] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 104.481063][ T5302] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 104.502259][ T27] audit: type=1800 audit(1676306792.258:118): pid=5301 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5301] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5301] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5301] exit_group(0) = ?
[pid 5301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5301, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./116", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./116", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./116/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./116/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./116/binderfs") = 0
umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./116/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./116/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./116/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./116/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./116") = 0
mkdir("./117", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5303
./strace-static-x86_64: Process 5303 attached
[pid 5303] chdir("./117") = 0
[pid 5303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5303] setpgid(0, 0) = 0
[pid 5303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5303] write(3, "1000", 4) = 4
[pid 5303] close(3) = 0
[pid 5303] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5303] memfd_create("syzkaller", 0) = 3
[pid 5303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[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"..., 2097152) = 2097152
[pid 5303] munmap(0x7f2ef2e77000, 2097152) = 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] mkdir("./file0", 0777) = 0
[pid 5303] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5303] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5303] chdir("./file0") = 0
[pid 5303] ioctl(4, LOOP_CLR_FD) = 0
[ 104.779592][ T5303] loop0: detected capacity change from 0 to 4096
[ 104.793931][ T5303] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 104.802050][ T5303] NILFS (loop0): trying rollback from an earlier position
[ 104.816836][ T5303] NILFS (loop0): recovery complete
[pid 5303] close(4) = 0
[pid 5303] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5303] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 104.823073][ T5304] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 104.839408][ T27] audit: type=1800 audit(1676306792.598:119): pid=5303 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5303] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5303] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[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=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./117", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./117", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./117/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./117/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./117/binderfs") = 0
umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./117/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./117/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./117/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./117/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./117") = 0
mkdir("./118", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5305
./strace-static-x86_64: Process 5305 attached
[pid 5305] chdir("./118") = 0
[pid 5305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5305] setpgid(0, 0) = 0
[pid 5305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5305] write(3, "1000", 4) = 4
[pid 5305] close(3) = 0
[pid 5305] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5305] memfd_create("syzkaller", 0) = 3
[pid 5305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5305] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5305] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5305] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5305] close(3) = 0
[pid 5305] mkdir("./file0", 0777) = 0
[ 105.137424][ T5305] loop0: detected capacity change from 0 to 4096
[ 105.155228][ T5305] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 105.163579][ T5305] NILFS (loop0): trying rollback from an earlier position
[ 105.177873][ T5305] NILFS (loop0): recovery complete
[pid 5305] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5305] chdir("./file0") = 0
[pid 5305] ioctl(4, LOOP_CLR_FD) = 0
[pid 5305] close(4) = 0
[pid 5305] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5305] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 105.183912][ T5306] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 105.200925][ T27] audit: type=1800 audit(1676306792.958:120): pid=5305 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5305] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5305] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5305] exit_group(0) = ?
[pid 5305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5305, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./118", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./118", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./118/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./118/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./118/binderfs") = 0
umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./118/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./118/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./118/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./118/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./118") = 0
mkdir("./119", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5307
./strace-static-x86_64: Process 5307 attached
[pid 5307] chdir("./119") = 0
[pid 5307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5307] setpgid(0, 0) = 0
[pid 5307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5307] write(3, "1000", 4) = 4
[pid 5307] close(3) = 0
[pid 5307] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5307] memfd_create("syzkaller", 0) = 3
[pid 5307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5307] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5307] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5307] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5307] close(3) = 0
[pid 5307] mkdir("./file0", 0777) = 0
[ 105.495040][ T5307] loop0: detected capacity change from 0 to 4096
[ 105.520967][ T5307] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 105.529001][ T5307] NILFS (loop0): trying rollback from an earlier position
[pid 5307] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5307] chdir("./file0") = 0
[pid 5307] ioctl(4, LOOP_CLR_FD) = 0
[pid 5307] close(4) = 0
[pid 5307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5307] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 105.542370][ T5307] NILFS (loop0): recovery complete
[ 105.548546][ T5308] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 105.574222][ T27] audit: type=1800 audit(1676306793.328:121): pid=5307 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5307] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5307] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5307] exit_group(0) = ?
[pid 5307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5307, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./119", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./119", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./119/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./119/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./119/binderfs") = 0
umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./119/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./119/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./119/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./119/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./119") = 0
mkdir("./120", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5309
./strace-static-x86_64: Process 5309 attached
[pid 5309] chdir("./120") = 0
[pid 5309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5309] setpgid(0, 0) = 0
[pid 5309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5309] write(3, "1000", 4) = 4
[pid 5309] close(3) = 0
[pid 5309] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5309] memfd_create("syzkaller", 0) = 3
[pid 5309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5309] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5309] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5309] close(3) = 0
[pid 5309] mkdir("./file0", 0777) = 0
[ 105.871835][ T5309] loop0: detected capacity change from 0 to 4096
[ 105.888086][ T5309] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 105.896315][ T5309] NILFS (loop0): trying rollback from an earlier position
[ 105.910355][ T5309] NILFS (loop0): recovery complete
[pid 5309] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5309] chdir("./file0") = 0
[pid 5309] ioctl(4, LOOP_CLR_FD) = 0
[pid 5309] close(4) = 0
[pid 5309] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5309] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 105.916539][ T5310] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5309] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5309] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5309] exit_group(0) = ?
[pid 5309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5309, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./120", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./120", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./120/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./120/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./120/binderfs") = 0
umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./120/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./120/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./120/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./120/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./120") = 0
mkdir("./121", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5311 attached
, child_tidptr=0x555555db65d0) = 5311
[pid 5311] chdir("./121") = 0
[pid 5311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5311] setpgid(0, 0) = 0
[pid 5311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5311] write(3, "1000", 4) = 4
[pid 5311] close(3) = 0
[pid 5311] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5311] memfd_create("syzkaller", 0) = 3
[pid 5311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5311] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5311] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5311] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5311] close(3) = 0
[pid 5311] mkdir("./file0", 0777) = 0
[ 106.224270][ T5311] loop0: detected capacity change from 0 to 4096
[ 106.240490][ T5311] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 106.248535][ T5311] NILFS (loop0): trying rollback from an earlier position
[ 106.262503][ T5311] NILFS (loop0): recovery complete
[pid 5311] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5311] chdir("./file0") = 0
[pid 5311] ioctl(4, LOOP_CLR_FD) = 0
[pid 5311] close(4) = 0
[pid 5311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5311] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 106.268336][ T5312] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5311] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5311] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5311] exit_group(0) = ?
[pid 5311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5311, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./121", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./121", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./121/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./121/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./121/binderfs") = 0
umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./121/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./121/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./121/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./121/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./121") = 0
mkdir("./122", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5313
./strace-static-x86_64: Process 5313 attached
[pid 5313] chdir("./122") = 0
[pid 5313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5313] setpgid(0, 0) = 0
[pid 5313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5313] write(3, "1000", 4) = 4
[pid 5313] close(3) = 0
[pid 5313] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5313] memfd_create("syzkaller", 0) = 3
[pid 5313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5313] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5313] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5313] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5313] close(3) = 0
[pid 5313] mkdir("./file0", 0777) = 0
[ 106.585749][ T5313] loop0: detected capacity change from 0 to 4096
[ 106.602068][ T5313] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 106.610116][ T5313] NILFS (loop0): trying rollback from an earlier position
[ 106.623652][ T5313] NILFS (loop0): recovery complete
[pid 5313] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5313] chdir("./file0") = 0
[pid 5313] ioctl(4, LOOP_CLR_FD) = 0
[pid 5313] close(4) = 0
[pid 5313] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5313] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 106.630227][ T5314] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5313] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5313] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5313] exit_group(0) = ?
[pid 5313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5313, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./122", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./122", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./122/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./122/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./122/binderfs") = 0
umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./122/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./122/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./122/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./122/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./122") = 0
mkdir("./123", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5315
./strace-static-x86_64: Process 5315 attached
[pid 5315] chdir("./123") = 0
[pid 5315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5315] setpgid(0, 0) = 0
[pid 5315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5315] write(3, "1000", 4) = 4
[pid 5315] close(3) = 0
[pid 5315] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5315] memfd_create("syzkaller", 0) = 3
[pid 5315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5315] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5315] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5315] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5315] close(3) = 0
[pid 5315] mkdir("./file0", 0777) = 0
[ 106.920859][ T5315] loop0: detected capacity change from 0 to 4096
[ 106.940048][ T5315] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 106.948133][ T5315] NILFS (loop0): trying rollback from an earlier position
[ 106.962650][ T5315] NILFS (loop0): recovery complete
[pid 5315] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5315] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5315] chdir("./file0") = 0
[pid 5315] ioctl(4, LOOP_CLR_FD) = 0
[pid 5315] close(4) = 0
[pid 5315] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5315] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 106.969163][ T5316] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5315] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5315] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5315] exit_group(0) = ?
[pid 5315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5315, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./123", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./123", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./123/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./123/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./123/binderfs") = 0
umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./123/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./123/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./123/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./123/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./123") = 0
mkdir("./124", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5317 attached
, child_tidptr=0x555555db65d0) = 5317
[pid 5317] chdir("./124") = 0
[pid 5317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5317] setpgid(0, 0) = 0
[pid 5317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5317] write(3, "1000", 4) = 4
[pid 5317] close(3) = 0
[pid 5317] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5317] memfd_create("syzkaller", 0) = 3
[pid 5317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5317] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5317] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5317] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5317] close(3) = 0
[pid 5317] mkdir("./file0", 0777) = 0
[ 107.296060][ T5317] loop0: detected capacity change from 0 to 4096
[ 107.314185][ T5317] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 107.322261][ T5317] NILFS (loop0): trying rollback from an earlier position
[ 107.337059][ T5317] NILFS (loop0): recovery complete
[pid 5317] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5317] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5317] chdir("./file0") = 0
[pid 5317] ioctl(4, LOOP_CLR_FD) = 0
[pid 5317] close(4) = 0
[pid 5317] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5317] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 107.343401][ T5318] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5317] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5317] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5317] exit_group(0) = ?
[pid 5317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5317, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./124", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./124", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./124/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./124/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./124/binderfs") = 0
umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./124/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./124/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./124/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./124/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./124") = 0
mkdir("./125", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5319
./strace-static-x86_64: Process 5319 attached
[pid 5319] chdir("./125") = 0
[pid 5319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5319] setpgid(0, 0) = 0
[pid 5319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5319] write(3, "1000", 4) = 4
[pid 5319] close(3) = 0
[pid 5319] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5319] memfd_create("syzkaller", 0) = 3
[pid 5319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5319] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5319] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5319] close(3) = 0
[pid 5319] mkdir("./file0", 0777) = 0
[ 107.651528][ T5319] loop0: detected capacity change from 0 to 4096
[ 107.669353][ T5319] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 107.677381][ T5319] NILFS (loop0): trying rollback from an earlier position
[ 107.691109][ T5319] NILFS (loop0): recovery complete
[pid 5319] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5319] chdir("./file0") = 0
[pid 5319] ioctl(4, LOOP_CLR_FD) = 0
[pid 5319] close(4) = 0
[pid 5319] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5319] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 107.697548][ T5320] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 107.709337][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 107.709348][ T27] audit: type=1800 audit(1676306795.478:127): pid=5319 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5319] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5319] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5319] exit_group(0) = ?
[pid 5319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5319, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./125", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./125", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./125/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./125/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./125/binderfs") = 0
umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./125/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./125/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./125/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./125/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./125") = 0
mkdir("./126", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5321
./strace-static-x86_64: Process 5321 attached
[pid 5321] chdir("./126") = 0
[pid 5321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5321] setpgid(0, 0) = 0
[pid 5321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5321] write(3, "1000", 4) = 4
[pid 5321] close(3) = 0
[pid 5321] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5321] memfd_create("syzkaller", 0) = 3
[pid 5321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5321] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5321] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5321] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5321] close(3) = 0
[pid 5321] mkdir("./file0", 0777) = 0
[ 108.005387][ T5321] loop0: detected capacity change from 0 to 4096
[ 108.024109][ T5321] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 108.032296][ T5321] NILFS (loop0): trying rollback from an earlier position
[ 108.046917][ T5321] NILFS (loop0): recovery complete
[pid 5321] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5321] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5321] chdir("./file0") = 0
[pid 5321] ioctl(4, LOOP_CLR_FD) = 0
[pid 5321] close(4) = 0
[pid 5321] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5321] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 108.053399][ T5322] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 108.078568][ T27] audit: type=1800 audit(1676306795.838:128): pid=5321 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5321] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5321] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5321] exit_group(0) = ?
[pid 5321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5321, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./126", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./126", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./126/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./126/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./126/binderfs") = 0
umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./126/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./126/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./126/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./126/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./126") = 0
mkdir("./127", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5323
./strace-static-x86_64: Process 5323 attached
[pid 5323] chdir("./127") = 0
[pid 5323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5323] setpgid(0, 0) = 0
[pid 5323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5323] write(3, "1000", 4) = 4
[pid 5323] close(3) = 0
[pid 5323] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5323] memfd_create("syzkaller", 0) = 3
[pid 5323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5323] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5323] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5323] close(3) = 0
[pid 5323] mkdir("./file0", 0777) = 0
[ 108.383653][ T5323] loop0: detected capacity change from 0 to 4096
[ 108.401301][ T5323] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 108.409406][ T5323] NILFS (loop0): trying rollback from an earlier position
[ 108.424008][ T5323] NILFS (loop0): recovery complete
[pid 5323] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5323] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5323] chdir("./file0") = 0
[pid 5323] ioctl(4, LOOP_CLR_FD) = 0
[pid 5323] close(4) = 0
[pid 5323] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5323] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 108.430108][ T5324] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 108.454534][ T27] audit: type=1800 audit(1676306796.198:129): pid=5323 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5323] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5323] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5323] exit_group(0) = ?
[pid 5323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5323, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./127", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./127", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./127/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./127/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./127/binderfs") = 0
umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./127/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./127/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./127/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./127/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./127") = 0
mkdir("./128", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5325 attached
, child_tidptr=0x555555db65d0) = 5325
[pid 5325] chdir("./128") = 0
[pid 5325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5325] setpgid(0, 0) = 0
[pid 5325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5325] write(3, "1000", 4) = 4
[pid 5325] close(3) = 0
[pid 5325] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5325] memfd_create("syzkaller", 0) = 3
[pid 5325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5325] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5325] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5325] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5325] close(3) = 0
[pid 5325] mkdir("./file0", 0777) = 0
[ 108.755096][ T5325] loop0: detected capacity change from 0 to 4096
[ 108.772973][ T5325] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 108.781031][ T5325] NILFS (loop0): trying rollback from an earlier position
[ 108.795554][ T5325] NILFS (loop0): recovery complete
[pid 5325] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5325] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5325] chdir("./file0") = 0
[pid 5325] ioctl(4, LOOP_CLR_FD) = 0
[pid 5325] close(4) = 0
[pid 5325] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5325] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 108.801859][ T5326] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 108.816222][ T27] audit: type=1800 audit(1676306796.568:130): pid=5325 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5325] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5325] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5325] exit_group(0) = ?
[pid 5325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5325, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./128", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./128", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./128/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./128/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./128/binderfs") = 0
umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./128/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./128/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./128/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./128/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./128") = 0
mkdir("./129", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5327
./strace-static-x86_64: Process 5327 attached
[pid 5327] chdir("./129") = 0
[pid 5327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5327] setpgid(0, 0) = 0
[pid 5327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5327] write(3, "1000", 4) = 4
[pid 5327] close(3) = 0
[pid 5327] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5327] memfd_create("syzkaller", 0) = 3
[pid 5327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5327] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5327] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5327] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5327] close(3) = 0
[pid 5327] mkdir("./file0", 0777) = 0
[ 109.089785][ T5327] loop0: detected capacity change from 0 to 4096
[ 109.105661][ T5327] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 109.113793][ T5327] NILFS (loop0): trying rollback from an earlier position
[ 109.128106][ T5327] NILFS (loop0): recovery complete
[pid 5327] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5327] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5327] chdir("./file0") = 0
[pid 5327] ioctl(4, LOOP_CLR_FD) = 0
[pid 5327] close(4) = 0
[pid 5327] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5327] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 109.134164][ T5328] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 109.149023][ T27] audit: type=1800 audit(1676306796.908:131): pid=5327 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5327] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5327] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5327] exit_group(0) = ?
[pid 5327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5327, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./129", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./129", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./129/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./129/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./129/binderfs") = 0
umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./129/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./129/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./129/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./129/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./129") = 0
mkdir("./130", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5329
./strace-static-x86_64: Process 5329 attached
[pid 5329] chdir("./130") = 0
[pid 5329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5329] setpgid(0, 0) = 0
[pid 5329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5329] write(3, "1000", 4) = 4
[pid 5329] close(3) = 0
[pid 5329] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5329] memfd_create("syzkaller", 0) = 3
[pid 5329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5329] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5329] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5329] close(3) = 0
[pid 5329] mkdir("./file0", 0777) = 0
[ 109.434324][ T5329] loop0: detected capacity change from 0 to 4096
[ 109.450332][ T5329] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 109.458393][ T5329] NILFS (loop0): trying rollback from an earlier position
[ 109.472324][ T5329] NILFS (loop0): recovery complete
[pid 5329] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5329] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5329] chdir("./file0") = 0
[pid 5329] ioctl(4, LOOP_CLR_FD) = 0
[pid 5329] close(4) = 0
[pid 5329] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5329] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 109.478142][ T5330] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 109.498394][ T27] audit: type=1800 audit(1676306797.258:132): pid=5329 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5329] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5329] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5329] exit_group(0) = ?
[pid 5329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5329, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./130", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./130", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./130/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./130/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./130/binderfs") = 0
umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./130/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./130/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./130/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./130/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./130") = 0
mkdir("./131", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5331 attached
, child_tidptr=0x555555db65d0) = 5331
[pid 5331] chdir("./131") = 0
[pid 5331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5331] setpgid(0, 0) = 0
[pid 5331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5331] write(3, "1000", 4) = 4
[pid 5331] close(3) = 0
[pid 5331] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5331] memfd_create("syzkaller", 0) = 3
[pid 5331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5331] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5331] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5331] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5331] close(3) = 0
[pid 5331] mkdir("./file0", 0777) = 0
[pid 5331] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 109.799698][ T5331] loop0: detected capacity change from 0 to 4096
[ 109.816528][ T5331] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 109.824551][ T5331] NILFS (loop0): trying rollback from an earlier position
[ 109.842115][ T5331] NILFS (loop0): recovery complete
[pid 5331] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5331] chdir("./file0") = 0
[pid 5331] ioctl(4, LOOP_CLR_FD) = 0
[pid 5331] close(4) = 0
[pid 5331] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5331] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 109.848311][ T5332] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 109.878599][ T27] audit: type=1800 audit(1676306797.638:133): pid=5331 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5331] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5331] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5331] exit_group(0) = ?
[pid 5331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5331, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./131", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./131", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./131/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./131/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./131/binderfs") = 0
umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./131/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./131/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./131/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./131/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./131") = 0
mkdir("./132", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5333
./strace-static-x86_64: Process 5333 attached
[pid 5333] chdir("./132") = 0
[pid 5333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5333] setpgid(0, 0) = 0
[pid 5333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5333] write(3, "1000", 4) = 4
[pid 5333] close(3) = 0
[pid 5333] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5333] memfd_create("syzkaller", 0) = 3
[pid 5333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5333] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5333] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5333] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5333] close(3) = 0
[pid 5333] mkdir("./file0", 0777) = 0
[ 110.139922][ T5333] loop0: detected capacity change from 0 to 4096
[ 110.154744][ T5333] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 110.162871][ T5333] NILFS (loop0): trying rollback from an earlier position
[ 110.175747][ T5333] NILFS (loop0): recovery complete
[pid 5333] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5333] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5333] chdir("./file0") = 0
[pid 5333] ioctl(4, LOOP_CLR_FD) = 0
[pid 5333] close(4) = 0
[pid 5333] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5333] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 110.181731][ T5334] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 110.185502][ T27] audit: type=1800 audit(1676306797.948:134): pid=5333 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5333] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5333] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5333] exit_group(0) = ?
[pid 5333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5333, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./132", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./132", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./132/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./132/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./132/binderfs") = 0
umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./132/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./132/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./132/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./132/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./132") = 0
mkdir("./133", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5335
./strace-static-x86_64: Process 5335 attached
[pid 5335] chdir("./133") = 0
[pid 5335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5335] setpgid(0, 0) = 0
[pid 5335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5335] write(3, "1000", 4) = 4
[pid 5335] close(3) = 0
[pid 5335] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5335] memfd_create("syzkaller", 0) = 3
[pid 5335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5335] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5335] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5335] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5335] close(3) = 0
[pid 5335] mkdir("./file0", 0777) = 0
[pid 5335] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5335] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5335] chdir("./file0") = 0
[pid 5335] ioctl(4, LOOP_CLR_FD) = 0
[ 110.488741][ T5335] loop0: detected capacity change from 0 to 4096
[ 110.503812][ T5335] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 110.511902][ T5335] NILFS (loop0): trying rollback from an earlier position
[ 110.525461][ T5335] NILFS (loop0): recovery complete
[pid 5335] close(4) = 0
[pid 5335] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5335] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 110.531947][ T5336] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 110.551329][ T27] audit: type=1800 audit(1676306798.308:135): pid=5335 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5335] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5335] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5335] exit_group(0) = ?
[pid 5335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5335, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./133", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./133", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./133/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./133/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./133/binderfs") = 0
umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./133/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./133/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./133/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./133/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./133") = 0
mkdir("./134", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5337
./strace-static-x86_64: Process 5337 attached
[pid 5337] chdir("./134") = 0
[pid 5337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5337] setpgid(0, 0) = 0
[pid 5337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5337] write(3, "1000", 4) = 4
[pid 5337] close(3) = 0
[pid 5337] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5337] memfd_create("syzkaller", 0) = 3
[pid 5337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5337] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5337] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5337] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5337] close(3) = 0
[pid 5337] mkdir("./file0", 0777) = 0
[ 110.845718][ T5337] loop0: detected capacity change from 0 to 4096
[ 110.865018][ T5337] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 110.873267][ T5337] NILFS (loop0): trying rollback from an earlier position
[ 110.888005][ T5337] NILFS (loop0): recovery complete
[pid 5337] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5337] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5337] chdir("./file0") = 0
[pid 5337] ioctl(4, LOOP_CLR_FD) = 0
[pid 5337] close(4) = 0
[pid 5337] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5337] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 110.894015][ T5338] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 110.919129][ T27] audit: type=1800 audit(1676306798.678:136): pid=5337 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5337] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5337] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5337] exit_group(0) = ?
[pid 5337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5337, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./134", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./134", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./134/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./134/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./134/binderfs") = 0
umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./134/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./134/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./134/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./134/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./134") = 0
mkdir("./135", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5339
./strace-static-x86_64: Process 5339 attached
[pid 5339] chdir("./135") = 0
[pid 5339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5339] setpgid(0, 0) = 0
[pid 5339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5339] write(3, "1000", 4) = 4
[pid 5339] close(3) = 0
[pid 5339] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5339] memfd_create("syzkaller", 0) = 3
[pid 5339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5339] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5339] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5339] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5339] close(3) = 0
[pid 5339] mkdir("./file0", 0777) = 0
[ 111.198796][ T5339] loop0: detected capacity change from 0 to 4096
[ 111.215708][ T5339] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 111.223909][ T5339] NILFS (loop0): trying rollback from an earlier position
[ 111.237988][ T5339] NILFS (loop0): recovery complete
[pid 5339] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5339] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5339] chdir("./file0") = 0
[pid 5339] ioctl(4, LOOP_CLR_FD) = 0
[pid 5339] close(4) = 0
[pid 5339] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5339] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 111.243751][ T5340] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5339] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5339] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5339] exit_group(0) = ?
[pid 5339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5339, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./135", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./135", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./135/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./135/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./135/binderfs") = 0
umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./135/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./135/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./135/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./135/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./135") = 0
mkdir("./136", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5341
./strace-static-x86_64: Process 5341 attached
[pid 5341] chdir("./136") = 0
[pid 5341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5341] setpgid(0, 0) = 0
[pid 5341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5341] write(3, "1000", 4) = 4
[pid 5341] close(3) = 0
[pid 5341] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5341] memfd_create("syzkaller", 0) = 3
[pid 5341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5341] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5341] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5341] close(3) = 0
[pid 5341] mkdir("./file0", 0777) = 0
[ 111.535749][ T5341] loop0: detected capacity change from 0 to 4096
[ 111.551812][ T5341] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 111.559888][ T5341] NILFS (loop0): trying rollback from an earlier position
[ 111.573986][ T5341] NILFS (loop0): recovery complete
[pid 5341] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5341] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5341] chdir("./file0") = 0
[pid 5341] ioctl(4, LOOP_CLR_FD) = 0
[pid 5341] close(4) = 0
[pid 5341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5341] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 111.580153][ T5342] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5341] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5341] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5341] exit_group(0) = ?
[pid 5341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5341, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./136", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./136", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./136/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./136/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./136/binderfs") = 0
umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./136/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./136/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./136/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./136/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./136") = 0
mkdir("./137", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5343 attached
, child_tidptr=0x555555db65d0) = 5343
[pid 5343] chdir("./137") = 0
[pid 5343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5343] setpgid(0, 0) = 0
[pid 5343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5343] write(3, "1000", 4) = 4
[pid 5343] close(3) = 0
[pid 5343] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5343] memfd_create("syzkaller", 0) = 3
[pid 5343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5343] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5343] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5343] close(3) = 0
[pid 5343] mkdir("./file0", 0777) = 0
[ 111.871259][ T5343] loop0: detected capacity change from 0 to 4096
[ 111.899861][ T5343] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 111.908048][ T5343] NILFS (loop0): trying rollback from an earlier position
[pid 5343] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5343] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5343] chdir("./file0") = 0
[pid 5343] ioctl(4, LOOP_CLR_FD) = 0
[pid 5343] close(4) = 0
[pid 5343] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5343] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 111.924834][ T5343] NILFS (loop0): recovery complete
[ 111.931048][ T5344] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5343] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5343] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5343] exit_group(0) = ?
[pid 5343] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5343, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./137", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./137", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./137/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./137/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./137/binderfs") = 0
umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./137/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./137/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./137/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./137/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./137") = 0
mkdir("./138", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5345
./strace-static-x86_64: Process 5345 attached
[pid 5345] chdir("./138") = 0
[pid 5345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5345] setpgid(0, 0) = 0
[pid 5345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5345] write(3, "1000", 4) = 4
[pid 5345] close(3) = 0
[pid 5345] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5345] memfd_create("syzkaller", 0) = 3
[pid 5345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5345] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5345] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5345] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5345] close(3) = 0
[pid 5345] mkdir("./file0", 0777) = 0
[ 112.215590][ T5345] loop0: detected capacity change from 0 to 4096
[ 112.232540][ T5345] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 112.240620][ T5345] NILFS (loop0): trying rollback from an earlier position
[ 112.255747][ T5345] NILFS (loop0): recovery complete
[pid 5345] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5345] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5345] chdir("./file0") = 0
[pid 5345] ioctl(4, LOOP_CLR_FD) = 0
[pid 5345] close(4) = 0
[pid 5345] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5345] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 112.261823][ T5346] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5345] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5345] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5345] exit_group(0) = ?
[pid 5345] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5345, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./138", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./138", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./138/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./138/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./138/binderfs") = 0
umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./138/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./138/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./138/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./138/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./138") = 0
mkdir("./139", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5347
./strace-static-x86_64: Process 5347 attached
[pid 5347] chdir("./139") = 0
[pid 5347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5347] setpgid(0, 0) = 0
[pid 5347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5347] write(3, "1000", 4) = 4
[pid 5347] close(3) = 0
[pid 5347] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5347] memfd_create("syzkaller", 0) = 3
[pid 5347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5347] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5347] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5347] close(3) = 0
[pid 5347] mkdir("./file0", 0777) = 0
[ 112.546936][ T5347] loop0: detected capacity change from 0 to 4096
[ 112.562242][ T5347] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 112.570444][ T5347] NILFS (loop0): trying rollback from an earlier position
[ 112.586249][ T5347] NILFS (loop0): recovery complete
[pid 5347] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5347] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5347] chdir("./file0") = 0
[pid 5347] ioctl(4, LOOP_CLR_FD) = 0
[pid 5347] close(4) = 0
[pid 5347] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5347] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 112.592404][ T5348] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5347] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5347] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5347] exit_group(0) = ?
[pid 5347] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5347, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./139", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./139", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./139/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./139/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./139/binderfs") = 0
umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./139/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./139/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./139/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./139/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./139") = 0
mkdir("./140", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5349
./strace-static-x86_64: Process 5349 attached
[pid 5349] chdir("./140") = 0
[pid 5349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5349] setpgid(0, 0) = 0
[pid 5349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5349] write(3, "1000", 4) = 4
[pid 5349] close(3) = 0
[pid 5349] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5349] memfd_create("syzkaller", 0) = 3
[pid 5349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5349] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5349] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5349] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5349] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5349] close(3) = 0
[pid 5349] mkdir("./file0", 0777) = 0
[ 112.893759][ T5349] loop0: detected capacity change from 0 to 4096
[ 112.909500][ T5349] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 112.917676][ T5349] NILFS (loop0): trying rollback from an earlier position
[ 112.932034][ T5349] NILFS (loop0): recovery complete
[pid 5349] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5349] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5349] chdir("./file0") = 0
[pid 5349] ioctl(4, LOOP_CLR_FD) = 0
[pid 5349] close(4) = 0
[pid 5349] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5349] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 112.938494][ T5350] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 112.958889][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 112.958902][ T27] audit: type=1800 audit(1676306800.718:142): pid=5349 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5349] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5349] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5349] exit_group(0) = ?
[pid 5349] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5349, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./140", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./140", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./140/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./140/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./140/binderfs") = 0
umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./140/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./140/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./140/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./140/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./140") = 0
mkdir("./141", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5351
./strace-static-x86_64: Process 5351 attached
[pid 5351] chdir("./141") = 0
[pid 5351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5351] setpgid(0, 0) = 0
[pid 5351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5351] write(3, "1000", 4) = 4
[pid 5351] close(3) = 0
[pid 5351] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5351] memfd_create("syzkaller", 0) = 3
[pid 5351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5351] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5351] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5351] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5351] close(3) = 0
[pid 5351] mkdir("./file0", 0777) = 0
[ 113.248926][ T5351] loop0: detected capacity change from 0 to 4096
[ 113.267530][ T5351] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 113.275581][ T5351] NILFS (loop0): trying rollback from an earlier position
[ 113.290813][ T5351] NILFS (loop0): recovery complete
[pid 5351] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5351] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5351] chdir("./file0") = 0
[pid 5351] ioctl(4, LOOP_CLR_FD) = 0
[pid 5351] close(4) = 0
[pid 5351] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5351] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 113.296940][ T5352] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 113.318577][ T27] audit: type=1800 audit(1676306801.078:143): pid=5351 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5351] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5351] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5351] exit_group(0) = ?
[pid 5351] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5351, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./141", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./141", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./141/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./141/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./141/binderfs") = 0
umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./141/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./141/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./141/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./141/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./141") = 0
mkdir("./142", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5353
./strace-static-x86_64: Process 5353 attached
[pid 5353] chdir("./142") = 0
[pid 5353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5353] setpgid(0, 0) = 0
[pid 5353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5353] write(3, "1000", 4) = 4
[pid 5353] close(3) = 0
[pid 5353] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5353] memfd_create("syzkaller", 0) = 3
[pid 5353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5353] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5353] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5353] close(3) = 0
[pid 5353] mkdir("./file0", 0777) = 0
[pid 5353] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5353] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5353] chdir("./file0") = 0
[pid 5353] ioctl(4, LOOP_CLR_FD) = 0
[ 113.602094][ T5353] loop0: detected capacity change from 0 to 4096
[ 113.619103][ T5353] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 113.627156][ T5353] NILFS (loop0): trying rollback from an earlier position
[ 113.641012][ T5353] NILFS (loop0): recovery complete
[pid 5353] close(4) = 0
[pid 5353] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5353] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 113.647120][ T5354] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 113.662253][ T27] audit: type=1800 audit(1676306801.428:144): pid=5353 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5353] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5353] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5353] exit_group(0) = ?
[pid 5353] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5353, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./142", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./142", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./142/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./142/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./142/binderfs") = 0
umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./142/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./142/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./142/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./142/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./142") = 0
mkdir("./143", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5355
./strace-static-x86_64: Process 5355 attached
[pid 5355] chdir("./143") = 0
[pid 5355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5355] setpgid(0, 0) = 0
[pid 5355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5355] write(3, "1000", 4) = 4
[pid 5355] close(3) = 0
[pid 5355] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5355] memfd_create("syzkaller", 0) = 3
[pid 5355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5355] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5355] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5355] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5355] close(3) = 0
[pid 5355] mkdir("./file0", 0777) = 0
[pid 5355] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5355] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 113.955885][ T5355] loop0: detected capacity change from 0 to 4096
[ 113.972773][ T5355] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 113.980853][ T5355] NILFS (loop0): trying rollback from an earlier position
[ 113.995281][ T5355] NILFS (loop0): recovery complete
[pid 5355] chdir("./file0") = 0
[pid 5355] ioctl(4, LOOP_CLR_FD) = 0
[pid 5355] close(4) = 0
[pid 5355] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5355] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 114.001142][ T5356] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 114.018839][ T27] audit: type=1800 audit(1676306801.778:145): pid=5355 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5355] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5355] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5355] exit_group(0) = ?
[pid 5355] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5355, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./143", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./143", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./143/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./143/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./143/binderfs") = 0
umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./143/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./143/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./143/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./143/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./143") = 0
mkdir("./144", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5357
./strace-static-x86_64: Process 5357 attached
[pid 5357] chdir("./144") = 0
[pid 5357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5357] setpgid(0, 0) = 0
[pid 5357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5357] write(3, "1000", 4) = 4
[pid 5357] close(3) = 0
[pid 5357] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5357] memfd_create("syzkaller", 0) = 3
[pid 5357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5357] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5357] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5357] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5357] close(3) = 0
[pid 5357] mkdir("./file0", 0777) = 0
[ 114.330282][ T5357] loop0: detected capacity change from 0 to 4096
[ 114.347638][ T5357] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 114.355706][ T5357] NILFS (loop0): trying rollback from an earlier position
[ 114.369949][ T5357] NILFS (loop0): recovery complete
[pid 5357] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5357] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5357] chdir("./file0") = 0
[pid 5357] ioctl(4, LOOP_CLR_FD) = 0
[pid 5357] close(4) = 0
[pid 5357] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5357] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 114.375830][ T5358] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 114.393032][ T27] audit: type=1800 audit(1676306802.148:146): pid=5357 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5357] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5357] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5357] exit_group(0) = ?
[pid 5357] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5357, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./144", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./144", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./144/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./144/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./144/binderfs") = 0
umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./144/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./144/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./144/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./144/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./144") = 0
mkdir("./145", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5359 attached
<unfinished ...>
[pid 5359] chdir("./145") = 0
[pid 5359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5359] setpgid(0, 0) = 0
[pid 5359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5359] write(3, "1000", 4) = 4
[pid 5359] close(3) = 0
[pid 5359] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5359] memfd_create("syzkaller", 0) = 3
[pid 5359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5359
[pid 5359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5359] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5359] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5359] close(3) = 0
[pid 5359] mkdir("./file0", 0777) = 0
[ 114.699787][ T5359] loop0: detected capacity change from 0 to 4096
[ 114.720170][ T5359] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 114.728279][ T5359] NILFS (loop0): trying rollback from an earlier position
[ 114.742853][ T5359] NILFS (loop0): recovery complete
[pid 5359] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5359] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5359] chdir("./file0") = 0
[pid 5359] ioctl(4, LOOP_CLR_FD) = 0
[pid 5359] close(4) = 0
[pid 5359] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5359] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 114.748924][ T5360] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 114.780060][ T27] audit: type=1800 audit(1676306802.538:147): pid=5359 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5359] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5359] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5359] exit_group(0) = ?
[pid 5359] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5359, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./145", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./145", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./145/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./145/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./145/binderfs") = 0
umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./145/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./145/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./145/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./145/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./145") = 0
mkdir("./146", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5361
./strace-static-x86_64: Process 5361 attached
[pid 5361] chdir("./146") = 0
[pid 5361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5361] setpgid(0, 0) = 0
[pid 5361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5361] write(3, "1000", 4) = 4
[pid 5361] close(3) = 0
[pid 5361] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5361] memfd_create("syzkaller", 0) = 3
[pid 5361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5361] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5361] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5361] close(3) = 0
[pid 5361] mkdir("./file0", 0777) = 0
[ 115.058462][ T5361] loop0: detected capacity change from 0 to 4096
[ 115.073129][ T5361] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 115.081358][ T5361] NILFS (loop0): trying rollback from an earlier position
[ 115.096375][ T5361] NILFS (loop0): recovery complete
[pid 5361] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5361] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5361] chdir("./file0") = 0
[pid 5361] ioctl(4, LOOP_CLR_FD) = 0
[pid 5361] close(4) = 0
[pid 5361] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5361] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 115.102370][ T5362] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 115.111770][ T27] audit: type=1800 audit(1676306802.868:148): pid=5361 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5361] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5361] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5361] exit_group(0) = ?
[pid 5361] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5361, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./146", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./146", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./146/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./146/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./146/binderfs") = 0
umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./146/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./146/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./146/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./146/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./146") = 0
mkdir("./147", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5363
./strace-static-x86_64: Process 5363 attached
[pid 5363] chdir("./147") = 0
[pid 5363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5363] setpgid(0, 0) = 0
[pid 5363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5363] write(3, "1000", 4) = 4
[pid 5363] close(3) = 0
[pid 5363] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5363] memfd_create("syzkaller", 0) = 3
[pid 5363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5363] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5363] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5363] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5363] close(3) = 0
[pid 5363] mkdir("./file0", 0777) = 0
[ 115.384469][ T5363] loop0: detected capacity change from 0 to 4096
[ 115.403314][ T5363] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 115.411413][ T5363] NILFS (loop0): trying rollback from an earlier position
[ 115.425907][ T5363] NILFS (loop0): recovery complete
[pid 5363] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5363] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5363] chdir("./file0") = 0
[pid 5363] ioctl(4, LOOP_CLR_FD) = 0
[pid 5363] close(4) = 0
[pid 5363] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5363] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 115.432389][ T5364] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 115.448413][ T27] audit: type=1800 audit(1676306803.208:149): pid=5363 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5363] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5363] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5363] exit_group(0) = ?
[pid 5363] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5363, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./147", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./147", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./147/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./147/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./147/binderfs") = 0
umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./147/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./147/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./147/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./147/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./147") = 0
mkdir("./148", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5365 attached
<unfinished ...>
[pid 5365] chdir("./148") = 0
[pid 5365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5365] setpgid(0, 0) = 0
[pid 5365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5365] write(3, "1000", 4) = 4
[pid 5365] close(3) = 0
[pid 5365] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5365
[pid 5365] memfd_create("syzkaller", 0) = 3
[pid 5365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5365] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5365] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5365] close(3) = 0
[pid 5365] mkdir("./file0", 0777) = 0
[ 115.740330][ T5365] loop0: detected capacity change from 0 to 4096
[ 115.759664][ T5365] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 115.767770][ T5365] NILFS (loop0): trying rollback from an earlier position
[ 115.784229][ T5365] NILFS (loop0): recovery complete
[pid 5365] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5365] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5365] chdir("./file0") = 0
[pid 5365] ioctl(4, LOOP_CLR_FD) = 0
[pid 5365] close(4) = 0
[pid 5365] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5365] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 115.790854][ T5366] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 115.806233][ T27] audit: type=1800 audit(1676306803.548:150): pid=5365 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5365] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5365] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5365] exit_group(0) = ?
[pid 5365] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5365, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./148", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./148", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./148/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./148/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./148/binderfs") = 0
umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./148/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./148/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./148/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./148/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./148") = 0
mkdir("./149", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5367
./strace-static-x86_64: Process 5367 attached
[pid 5367] chdir("./149") = 0
[pid 5367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5367] setpgid(0, 0) = 0
[pid 5367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5367] write(3, "1000", 4) = 4
[pid 5367] close(3) = 0
[pid 5367] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5367] memfd_create("syzkaller", 0) = 3
[pid 5367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5367] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5367] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5367] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5367] close(3) = 0
[pid 5367] mkdir("./file0", 0777) = 0
[ 116.102265][ T5367] loop0: detected capacity change from 0 to 4096
[ 116.127487][ T5367] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 116.135523][ T5367] NILFS (loop0): trying rollback from an earlier position
[pid 5367] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5367] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5367] chdir("./file0") = 0
[pid 5367] ioctl(4, LOOP_CLR_FD) = 0
[pid 5367] close(4) = 0
[pid 5367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5367] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 116.149502][ T5367] NILFS (loop0): recovery complete
[ 116.155400][ T5368] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 116.176279][ T27] audit: type=1800 audit(1676306803.908:151): pid=5367 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5367] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5367] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5367] exit_group(0) = ?
[pid 5367] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5367, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./149", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./149", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./149/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./149/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./149/binderfs") = 0
umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./149/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./149/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./149/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./149/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./149") = 0
mkdir("./150", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5369
./strace-static-x86_64: Process 5369 attached
[pid 5369] chdir("./150") = 0
[pid 5369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5369] setpgid(0, 0) = 0
[pid 5369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5369] write(3, "1000", 4) = 4
[pid 5369] close(3) = 0
[pid 5369] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5369] memfd_create("syzkaller", 0) = 3
[pid 5369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5369] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5369] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5369] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5369] close(3) = 0
[pid 5369] mkdir("./file0", 0777) = 0
[pid 5369] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5369] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5369] chdir("./file0") = 0
[pid 5369] ioctl(4, LOOP_CLR_FD) = 0
[ 116.436705][ T5369] loop0: detected capacity change from 0 to 4096
[ 116.452683][ T5369] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 116.461075][ T5369] NILFS (loop0): trying rollback from an earlier position
[ 116.476595][ T5369] NILFS (loop0): recovery complete
[pid 5369] close(4) = 0
[pid 5369] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5369] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 116.482578][ T5370] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5369] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5369] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5369] exit_group(0) = ?
[pid 5369] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5369, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./150", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./150", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./150/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./150/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./150/binderfs") = 0
umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./150/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./150/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./150/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./150/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./150") = 0
mkdir("./151", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5371
./strace-static-x86_64: Process 5371 attached
[pid 5371] chdir("./151") = 0
[pid 5371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5371] setpgid(0, 0) = 0
[pid 5371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5371] write(3, "1000", 4) = 4
[pid 5371] close(3) = 0
[pid 5371] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5371] memfd_create("syzkaller", 0) = 3
[pid 5371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5371] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5371] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5371] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5371] close(3) = 0
[pid 5371] mkdir("./file0", 0777) = 0
[pid 5371] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 116.760236][ T5371] loop0: detected capacity change from 0 to 4096
[ 116.775905][ T5371] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 116.784217][ T5371] NILFS (loop0): trying rollback from an earlier position
[ 116.798138][ T5371] NILFS (loop0): recovery complete
[pid 5371] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5371] chdir("./file0") = 0
[pid 5371] ioctl(4, LOOP_CLR_FD) = 0
[pid 5371] close(4) = 0
[pid 5371] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5371] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 116.804310][ T5372] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5371] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5371] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5371] exit_group(0) = ?
[pid 5371] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5371, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./151", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./151", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./151/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./151/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./151/binderfs") = 0
umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./151/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./151/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./151/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./151/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./151") = 0
mkdir("./152", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5373
./strace-static-x86_64: Process 5373 attached
[pid 5373] chdir("./152") = 0
[pid 5373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5373] setpgid(0, 0) = 0
[pid 5373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5373] write(3, "1000", 4) = 4
[pid 5373] close(3) = 0
[pid 5373] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5373] memfd_create("syzkaller", 0) = 3
[pid 5373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5373] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5373] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5373] close(3) = 0
[pid 5373] mkdir("./file0", 0777) = 0
[ 117.089938][ T5373] loop0: detected capacity change from 0 to 4096
[ 117.115734][ T5373] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 117.123835][ T5373] NILFS (loop0): trying rollback from an earlier position
[pid 5373] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5373] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5373] chdir("./file0") = 0
[pid 5373] ioctl(4, LOOP_CLR_FD) = 0
[pid 5373] close(4) = 0
[pid 5373] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5373] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 117.139907][ T5373] NILFS (loop0): recovery complete
[ 117.145950][ T5374] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5373] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5373] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5373] exit_group(0) = ?
[pid 5373] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5373, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./152", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./152", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./152/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./152/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./152/binderfs") = 0
umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./152/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./152/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./152/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./152/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./152") = 0
mkdir("./153", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5375
./strace-static-x86_64: Process 5375 attached
[pid 5375] chdir("./153") = 0
[pid 5375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5375] setpgid(0, 0) = 0
[pid 5375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5375] write(3, "1000", 4) = 4
[pid 5375] close(3) = 0
[pid 5375] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5375] memfd_create("syzkaller", 0) = 3
[pid 5375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5375] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5375] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5375] close(3) = 0
[pid 5375] mkdir("./file0", 0777) = 0
[ 117.425791][ T5375] loop0: detected capacity change from 0 to 4096
[ 117.442813][ T5375] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 117.450893][ T5375] NILFS (loop0): trying rollback from an earlier position
[ 117.464091][ T5375] NILFS (loop0): recovery complete
[pid 5375] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5375] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5375] chdir("./file0") = 0
[pid 5375] ioctl(4, LOOP_CLR_FD) = 0
[pid 5375] close(4) = 0
[pid 5375] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5375] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 117.470323][ T5376] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5375] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5375] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5375] exit_group(0) = ?
[pid 5375] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5375, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./153", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./153/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./153/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./153/binderfs") = 0
umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./153/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./153/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./153/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./153") = 0
mkdir("./154", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5377
./strace-static-x86_64: Process 5377 attached
[pid 5377] chdir("./154") = 0
[pid 5377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5377] setpgid(0, 0) = 0
[pid 5377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5377] write(3, "1000", 4) = 4
[pid 5377] close(3) = 0
[pid 5377] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5377] memfd_create("syzkaller", 0) = 3
[pid 5377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5377] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5377] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5377] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5377] close(3) = 0
[pid 5377] mkdir("./file0", 0777) = 0
[ 117.761508][ T5377] loop0: detected capacity change from 0 to 4096
[ 117.778619][ T5377] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 117.786642][ T5377] NILFS (loop0): trying rollback from an earlier position
[ 117.801208][ T5377] NILFS (loop0): recovery complete
[pid 5377] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5377] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5377] chdir("./file0") = 0
[pid 5377] ioctl(4, LOOP_CLR_FD) = 0
[pid 5377] close(4) = 0
[pid 5377] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5377] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 117.807109][ T5378] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5377] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5377] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5377] exit_group(0) = ?
[pid 5377] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5377, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./154", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./154/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./154/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./154/binderfs") = 0
umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./154/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./154/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./154/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./154") = 0
mkdir("./155", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5379 attached
<unfinished ...>
[pid 5379] chdir("./155") = 0
[pid 5379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5379] setpgid(0, 0) = 0
[pid 5379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5379] write(3, "1000", 4) = 4
[pid 5379] close(3) = 0
[pid 5379] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5379] memfd_create("syzkaller", 0) = 3
[pid 5379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5379
[pid 5379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5379] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5379] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5379] close(3) = 0
[pid 5379] mkdir("./file0", 0777) = 0
[ 118.126383][ T5379] loop0: detected capacity change from 0 to 4096
[ 118.142537][ T5379] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 118.150604][ T5379] NILFS (loop0): trying rollback from an earlier position
[ 118.163541][ T5379] NILFS (loop0): recovery complete
[pid 5379] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5379] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5379] chdir("./file0") = 0
[pid 5379] ioctl(4, LOOP_CLR_FD) = 0
[pid 5379] close(4) = 0
[pid 5379] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[ 118.169381][ T5380] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5379] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 118.207530][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 118.207542][ T27] audit: type=1800 audit(1676306805.968:157): pid=5379 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5379] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5379] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5379] exit_group(0) = ?
[pid 5379] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5379, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./155", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./155/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./155/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./155/binderfs") = 0
umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./155/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./155/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./155/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./155") = 0
mkdir("./156", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5381
./strace-static-x86_64: Process 5381 attached
[pid 5381] chdir("./156") = 0
[pid 5381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5381] setpgid(0, 0) = 0
[pid 5381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5381] write(3, "1000", 4) = 4
[pid 5381] close(3) = 0
[pid 5381] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5381] memfd_create("syzkaller", 0) = 3
[pid 5381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5381] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5381] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5381] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5381] close(3) = 0
[pid 5381] mkdir("./file0", 0777) = 0
[ 118.486016][ T5381] loop0: detected capacity change from 0 to 4096
[ 118.503342][ T5381] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 118.511429][ T5381] NILFS (loop0): trying rollback from an earlier position
[ 118.525839][ T5381] NILFS (loop0): recovery complete
[pid 5381] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5381] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5381] chdir("./file0") = 0
[pid 5381] ioctl(4, LOOP_CLR_FD) = 0
[pid 5381] close(4) = 0
[pid 5381] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5381] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 118.532293][ T5382] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 118.566223][ T27] audit: type=1800 audit(1676306806.318:158): pid=5381 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5381] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5381] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5381] exit_group(0) = ?
[pid 5381] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5381, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./156/binderfs") = 0
umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./156/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./156/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./156/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./156") = 0
mkdir("./157", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5383
./strace-static-x86_64: Process 5383 attached
[pid 5383] chdir("./157") = 0
[pid 5383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5383] setpgid(0, 0) = 0
[pid 5383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5383] write(3, "1000", 4) = 4
[pid 5383] close(3) = 0
[pid 5383] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5383] memfd_create("syzkaller", 0) = 3
[pid 5383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5383] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5383] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5383] close(3) = 0
[pid 5383] mkdir("./file0", 0777) = 0
[ 118.839202][ T5383] loop0: detected capacity change from 0 to 4096
[ 118.854636][ T5383] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 118.862761][ T5383] NILFS (loop0): trying rollback from an earlier position
[ 118.876412][ T5383] NILFS (loop0): recovery complete
[pid 5383] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5383] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5383] chdir("./file0") = 0
[pid 5383] ioctl(4, LOOP_CLR_FD) = 0
[pid 5383] close(4) = 0
[pid 5383] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5383] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 118.882218][ T5384] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 118.906375][ T27] audit: type=1800 audit(1676306806.648:159): pid=5383 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5383] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5383] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5383] exit_group(0) = ?
[pid 5383] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5383, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./157/binderfs") = 0
umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./157/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./157/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./157/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./157") = 0
mkdir("./158", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5385
./strace-static-x86_64: Process 5385 attached
[pid 5385] chdir("./158") = 0
[pid 5385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5385] setpgid(0, 0) = 0
[pid 5385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5385] write(3, "1000", 4) = 4
[pid 5385] close(3) = 0
[pid 5385] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5385] memfd_create("syzkaller", 0) = 3
[pid 5385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5385] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5385] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5385] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5385] close(3) = 0
[pid 5385] mkdir("./file0", 0777) = 0
[ 119.163674][ T5385] loop0: detected capacity change from 0 to 4096
[ 119.182922][ T5385] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 119.191055][ T5385] NILFS (loop0): trying rollback from an earlier position
[ 119.205742][ T5385] NILFS (loop0): recovery complete
[pid 5385] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5385] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5385] chdir("./file0") = 0
[pid 5385] ioctl(4, LOOP_CLR_FD) = 0
[pid 5385] close(4) = 0
[pid 5385] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5385] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 119.212036][ T5386] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 119.229563][ T27] audit: type=1800 audit(1676306806.988:160): pid=5385 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5385] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5385] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5385] exit_group(0) = ?
[pid 5385] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5385, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./158/binderfs") = 0
umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./158/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./158") = 0
mkdir("./159", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5387
./strace-static-x86_64: Process 5387 attached
[pid 5387] chdir("./159") = 0
[pid 5387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5387] setpgid(0, 0) = 0
[pid 5387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5387] write(3, "1000", 4) = 4
[pid 5387] close(3) = 0
[pid 5387] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5387] memfd_create("syzkaller", 0) = 3
[pid 5387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5387] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5387] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5387] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5387] close(3) = 0
[pid 5387] mkdir("./file0", 0777) = 0
[ 119.517037][ T5387] loop0: detected capacity change from 0 to 4096
[ 119.532762][ T5387] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 119.540919][ T5387] NILFS (loop0): trying rollback from an earlier position
[ 119.555157][ T5387] NILFS (loop0): recovery complete
[pid 5387] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5387] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5387] chdir("./file0") = 0
[pid 5387] ioctl(4, LOOP_CLR_FD) = 0
[pid 5387] close(4) = 0
[ 119.561271][ T5388] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5387] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5387] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 119.588697][ T27] audit: type=1800 audit(1676306807.348:161): pid=5387 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5387] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5387] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5387] exit_group(0) = ?
[pid 5387] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5387, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./159/binderfs") = 0
umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./159/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./159/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./159/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./159") = 0
mkdir("./160", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5389
./strace-static-x86_64: Process 5389 attached
[pid 5389] chdir("./160") = 0
[pid 5389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5389] setpgid(0, 0) = 0
[pid 5389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5389] write(3, "1000", 4) = 4
[pid 5389] close(3) = 0
[pid 5389] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5389] memfd_create("syzkaller", 0) = 3
[pid 5389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5389] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5389] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5389] close(3) = 0
[pid 5389] mkdir("./file0", 0777) = 0
[ 119.884542][ T5389] loop0: detected capacity change from 0 to 4096
[ 119.901436][ T5389] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 119.909567][ T5389] NILFS (loop0): trying rollback from an earlier position
[ 119.923744][ T5389] NILFS (loop0): recovery complete
[pid 5389] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5389] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5389] chdir("./file0") = 0
[pid 5389] ioctl(4, LOOP_CLR_FD) = 0
[pid 5389] close(4) = 0
[pid 5389] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5389] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 119.930252][ T5390] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 119.947867][ T27] audit: type=1800 audit(1676306807.708:162): pid=5389 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5389] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5389] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5389] exit_group(0) = ?
[pid 5389] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5389, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./160/binderfs") = 0
umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./160/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./160/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./160/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./160") = 0
mkdir("./161", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5391
./strace-static-x86_64: Process 5391 attached
[pid 5391] chdir("./161") = 0
[pid 5391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5391] setpgid(0, 0) = 0
[pid 5391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5391] write(3, "1000", 4) = 4
[pid 5391] close(3) = 0
[pid 5391] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5391] memfd_create("syzkaller", 0) = 3
[pid 5391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5391] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5391] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5391] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5391] close(3) = 0
[pid 5391] mkdir("./file0", 0777) = 0
[ 120.249086][ T5391] loop0: detected capacity change from 0 to 4096
[ 120.264921][ T5391] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 120.272984][ T5391] NILFS (loop0): trying rollback from an earlier position
[ 120.286663][ T5391] NILFS (loop0): recovery complete
[pid 5391] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5391] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5391] chdir("./file0") = 0
[pid 5391] ioctl(4, LOOP_CLR_FD) = 0
[pid 5391] close(4) = 0
[pid 5391] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5391] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 120.292351][ T5392] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 120.308316][ T27] audit: type=1800 audit(1676306808.068:163): pid=5391 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5391] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5391] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5391] exit_group(0) = ?
[pid 5391] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5391, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./161/binderfs") = 0
umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./161/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./161/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./161") = 0
mkdir("./162", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5393
./strace-static-x86_64: Process 5393 attached
[pid 5393] chdir("./162") = 0
[pid 5393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5393] setpgid(0, 0) = 0
[pid 5393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5393] write(3, "1000", 4) = 4
[pid 5393] close(3) = 0
[pid 5393] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5393] memfd_create("syzkaller", 0) = 3
[pid 5393] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5393] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5393] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5393] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5393] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5393] close(3) = 0
[pid 5393] mkdir("./file0", 0777) = 0
[ 120.600993][ T5393] loop0: detected capacity change from 0 to 4096
[ 120.618873][ T5393] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 120.626977][ T5393] NILFS (loop0): trying rollback from an earlier position
[ 120.640378][ T5393] NILFS (loop0): recovery complete
[pid 5393] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5393] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5393] chdir("./file0") = 0
[pid 5393] ioctl(4, LOOP_CLR_FD) = 0
[pid 5393] close(4) = 0
[pid 5393] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5393] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 120.646982][ T5394] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 120.676213][ T27] audit: type=1800 audit(1676306808.428:164): pid=5393 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5393] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5393] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5393] exit_group(0) = ?
[pid 5393] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5393, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./162/binderfs") = 0
umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./162/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./162/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./162") = 0
mkdir("./163", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5395
./strace-static-x86_64: Process 5395 attached
[pid 5395] chdir("./163") = 0
[pid 5395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5395] setpgid(0, 0) = 0
[pid 5395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5395] write(3, "1000", 4) = 4
[pid 5395] close(3) = 0
[pid 5395] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5395] memfd_create("syzkaller", 0) = 3
[pid 5395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5395] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5395] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5395] close(3) = 0
[pid 5395] mkdir("./file0", 0777) = 0
[pid 5395] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5395] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5395] chdir("./file0") = 0
[ 120.939685][ T5395] loop0: detected capacity change from 0 to 4096
[ 120.955036][ T5395] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 120.963107][ T5395] NILFS (loop0): trying rollback from an earlier position
[ 120.977123][ T5395] NILFS (loop0): recovery complete
[pid 5395] ioctl(4, LOOP_CLR_FD) = 0
[pid 5395] close(4) = 0
[pid 5395] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5395] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 120.983093][ T5396] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 120.993127][ T27] audit: type=1800 audit(1676306808.748:165): pid=5395 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5395] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5395] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5395] exit_group(0) = ?
[pid 5395] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5395, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./163/binderfs") = 0
umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./163/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./163/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./163") = 0
mkdir("./164", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5397
./strace-static-x86_64: Process 5397 attached
[pid 5397] chdir("./164") = 0
[pid 5397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5397] setpgid(0, 0) = 0
[pid 5397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5397] write(3, "1000", 4) = 4
[pid 5397] close(3) = 0
[pid 5397] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5397] memfd_create("syzkaller", 0) = 3
[pid 5397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5397] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5397] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5397] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5397] close(3) = 0
[pid 5397] mkdir("./file0", 0777) = 0
[ 121.302292][ T5397] loop0: detected capacity change from 0 to 4096
[ 121.319674][ T5397] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 121.327739][ T5397] NILFS (loop0): trying rollback from an earlier position
[ 121.340741][ T5397] NILFS (loop0): recovery complete
[pid 5397] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5397] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5397] chdir("./file0") = 0
[pid 5397] ioctl(4, LOOP_CLR_FD) = 0
[pid 5397] close(4) = 0
[pid 5397] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5397] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 121.346614][ T5398] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 121.362310][ T27] audit: type=1800 audit(1676306809.118:166): pid=5397 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5397] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5397] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5397] exit_group(0) = ?
[pid 5397] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5397, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./164/binderfs") = 0
umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./164/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./164/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./164") = 0
mkdir("./165", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555db65d0) = 5399
./strace-static-x86_64: Process 5399 attached
[pid 5399] chdir("./165") = 0
[pid 5399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5399] setpgid(0, 0) = 0
[pid 5399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5399] write(3, "1000", 4) = 4
[pid 5399] close(3) = 0
[pid 5399] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5399] memfd_create("syzkaller", 0) = 3
[pid 5399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5399] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5399] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5399] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5399] close(3) = 0
[pid 5399] mkdir("./file0", 0777) = 0
[ 121.650654][ T5399] loop0: detected capacity change from 0 to 4096
[ 121.668067][ T5399] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 121.676125][ T5399] NILFS (loop0): trying rollback from an earlier position
[ 121.691340][ T5399] NILFS (loop0): recovery complete
[pid 5399] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5399] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5399] chdir("./file0") = 0
[pid 5399] ioctl(4, LOOP_CLR_FD) = 0
[pid 5399] close(4) = 0
[pid 5399] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5399] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 121.697597][ T5400] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5399] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5399] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5399] exit_group(0) = ?
[pid 5399] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5399, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./165/binderfs") = 0
umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./165/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./165/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./165/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./165") = 0
mkdir("./166", 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=0x555555db65d0) = 5401
./strace-static-x86_64: Process 5401 attached
[pid 5401] chdir("./166") = 0
[pid 5401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5401] setpgid(0, 0) = 0
[pid 5401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5401] write(3, "1000", 4) = 4
[pid 5401] close(3) = 0
[pid 5401] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5401] memfd_create("syzkaller", 0) = 3
[pid 5401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5401] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5401] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5401] close(3) = 0
[pid 5401] mkdir("./file0", 0777) = 0
[ 122.012779][ T5401] loop0: detected capacity change from 0 to 4096
[ 122.029839][ T5401] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 122.037914][ T5401] NILFS (loop0): trying rollback from an earlier position
[ 122.052028][ T5401] NILFS (loop0): recovery complete
[pid 5401] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5401] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5401] chdir("./file0") = 0
[pid 5401] ioctl(4, LOOP_CLR_FD) = 0
[pid 5401] close(4) = 0
[pid 5401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5401] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 122.058117][ T5402] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5401] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5401] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5401] exit_group(0) = ?
[pid 5401] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5401, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./166/binderfs") = 0
umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./166/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./166/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./166/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./166") = 0
mkdir("./167", 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=0x555555db65d0) = 5403
./strace-static-x86_64: Process 5403 attached
[pid 5403] chdir("./167") = 0
[pid 5403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5403] setpgid(0, 0) = 0
[pid 5403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5403] write(3, "1000", 4) = 4
[pid 5403] close(3) = 0
[pid 5403] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5403] memfd_create("syzkaller", 0) = 3
[pid 5403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5403] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5403] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5403] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5403] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5403] close(3) = 0
[pid 5403] mkdir("./file0", 0777) = 0
[ 122.372517][ T5403] loop0: detected capacity change from 0 to 4096
[ 122.392068][ T5403] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 122.400159][ T5403] NILFS (loop0): trying rollback from an earlier position
[ 122.414169][ T5403] NILFS (loop0): recovery complete
[pid 5403] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5403] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5403] chdir("./file0") = 0
[pid 5403] ioctl(4, LOOP_CLR_FD) = 0
[pid 5403] close(4) = 0
[pid 5403] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5403] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 122.420444][ T5404] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5403] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5403] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5403] exit_group(0) = ?
[pid 5403] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5403, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./167/binderfs") = 0
umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./167/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./167/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./167") = 0
mkdir("./168", 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 5405 attached
, child_tidptr=0x555555db65d0) = 5405
[pid 5405] chdir("./168") = 0
[pid 5405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5405] setpgid(0, 0) = 0
[pid 5405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5405] write(3, "1000", 4) = 4
[pid 5405] close(3) = 0
[pid 5405] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5405] memfd_create("syzkaller", 0) = 3
[pid 5405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5405] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5405] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5405] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5405] close(3) = 0
[pid 5405] mkdir("./file0", 0777) = 0
[ 122.704721][ T5405] loop0: detected capacity change from 0 to 4096
[ 122.721003][ T5405] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 122.729043][ T5405] NILFS (loop0): trying rollback from an earlier position
[ 122.742432][ T5405] NILFS (loop0): recovery complete
[pid 5405] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5405] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5405] chdir("./file0") = 0
[pid 5405] ioctl(4, LOOP_CLR_FD) = 0
[pid 5405] close(4) = 0
[pid 5405] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5405] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 122.748674][ T5406] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5405] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5405] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5405] exit_group(0) = ?
[pid 5405] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5405, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./168/binderfs") = 0
umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./168/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./168/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./168/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./168") = 0
mkdir("./169", 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=0x555555db65d0) = 5407
./strace-static-x86_64: Process 5407 attached
[pid 5407] chdir("./169") = 0
[pid 5407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5407] setpgid(0, 0) = 0
[pid 5407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5407] write(3, "1000", 4) = 4
[pid 5407] close(3) = 0
[pid 5407] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5407] memfd_create("syzkaller", 0) = 3
[pid 5407] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5407] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5407] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5407] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5407] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5407] close(3) = 0
[pid 5407] mkdir("./file0", 0777) = 0
[ 123.050936][ T5407] loop0: detected capacity change from 0 to 4096
[ 123.066929][ T5407] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 123.074928][ T5407] NILFS (loop0): trying rollback from an earlier position
[ 123.088643][ T5407] NILFS (loop0): recovery complete
[pid 5407] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5407] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5407] chdir("./file0") = 0
[pid 5407] ioctl(4, LOOP_CLR_FD) = 0
[pid 5407] close(4) = 0
[pid 5407] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5407] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 123.094441][ T5408] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5407] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5407] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5407] exit_group(0) = ?
[pid 5407] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5407, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./169/binderfs") = 0
umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./169/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./169/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./169/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./169") = 0
mkdir("./170", 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=0x555555db65d0) = 5409
./strace-static-x86_64: Process 5409 attached
[pid 5409] chdir("./170") = 0
[pid 5409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5409] setpgid(0, 0) = 0
[pid 5409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5409] write(3, "1000", 4) = 4
[pid 5409] close(3) = 0
[pid 5409] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5409] memfd_create("syzkaller", 0) = 3
[pid 5409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5409] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5409] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5409] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5409] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5409] close(3) = 0
[pid 5409] mkdir("./file0", 0777) = 0
[pid 5409] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 123.377120][ T5409] loop0: detected capacity change from 0 to 4096
[ 123.392088][ T5409] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 123.400227][ T5409] NILFS (loop0): trying rollback from an earlier position
[ 123.414243][ T5409] NILFS (loop0): recovery complete
[pid 5409] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5409] chdir("./file0") = 0
[pid 5409] ioctl(4, LOOP_CLR_FD) = 0
[pid 5409] close(4) = 0
[pid 5409] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5409] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 123.421130][ T5410] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 123.434986][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 123.434997][ T27] audit: type=1800 audit(1676306811.198:172): pid=5409 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5409] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5409] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5409] exit_group(0) = ?
[pid 5409] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5409, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./170/binderfs") = 0
umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./170/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./170/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./170/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./170") = 0
mkdir("./171", 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=0x555555db65d0) = 5411
./strace-static-x86_64: Process 5411 attached
[pid 5411] chdir("./171") = 0
[pid 5411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5411] setpgid(0, 0) = 0
[pid 5411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5411] write(3, "1000", 4) = 4
[pid 5411] close(3) = 0
[pid 5411] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5411] memfd_create("syzkaller", 0) = 3
[pid 5411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5411] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5411] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5411] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5411] close(3) = 0
[pid 5411] mkdir("./file0", 0777) = 0
[pid 5411] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 123.725967][ T5411] loop0: detected capacity change from 0 to 4096
[ 123.742338][ T5411] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 123.750483][ T5411] NILFS (loop0): trying rollback from an earlier position
[ 123.764443][ T5411] NILFS (loop0): recovery complete
[pid 5411] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5411] chdir("./file0") = 0
[pid 5411] ioctl(4, LOOP_CLR_FD) = 0
[pid 5411] close(4) = 0
[pid 5411] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5411] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 123.770850][ T5412] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 123.786981][ T27] audit: type=1800 audit(1676306811.548:173): pid=5411 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5411] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5411] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5411] exit_group(0) = ?
[pid 5411] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5411, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./171/binderfs") = 0
umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./171/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./171/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./171/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./171") = 0
mkdir("./172", 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=0x555555db65d0) = 5413
./strace-static-x86_64: Process 5413 attached
[pid 5413] chdir("./172") = 0
[pid 5413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5413] setpgid(0, 0) = 0
[pid 5413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5413] write(3, "1000", 4) = 4
[pid 5413] close(3) = 0
[pid 5413] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5413] memfd_create("syzkaller", 0) = 3
[pid 5413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5413] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5413] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5413] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5413] close(3) = 0
[pid 5413] mkdir("./file0", 0777) = 0
[ 124.080406][ T5413] loop0: detected capacity change from 0 to 4096
[ 124.100779][ T5413] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 124.108892][ T5413] NILFS (loop0): trying rollback from an earlier position
[ 124.124146][ T5413] NILFS (loop0): recovery complete
[pid 5413] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5413] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5413] chdir("./file0") = 0
[pid 5413] ioctl(4, LOOP_CLR_FD) = 0
[pid 5413] close(4) = 0
[pid 5413] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5413] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 124.130060][ T5414] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 124.143534][ T27] audit: type=1800 audit(1676306811.908:174): pid=5413 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5413] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5413] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5413] exit_group(0) = ?
[pid 5413] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5413, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./172/binderfs") = 0
umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./172/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./172/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./172/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./172") = 0
mkdir("./173", 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=0x555555db65d0) = 5415
./strace-static-x86_64: Process 5415 attached
[pid 5415] chdir("./173") = 0
[pid 5415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5415] setpgid(0, 0) = 0
[pid 5415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5415] write(3, "1000", 4) = 4
[pid 5415] close(3) = 0
[pid 5415] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5415] memfd_create("syzkaller", 0) = 3
[pid 5415] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5415] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5415] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5415] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5415] close(3) = 0
[pid 5415] mkdir("./file0", 0777) = 0
[ 124.454928][ T5415] loop0: detected capacity change from 0 to 4096
[ 124.471546][ T5415] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 124.479708][ T5415] NILFS (loop0): trying rollback from an earlier position
[ 124.495784][ T5415] NILFS (loop0): recovery complete
[pid 5415] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5415] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5415] chdir("./file0") = 0
[pid 5415] ioctl(4, LOOP_CLR_FD) = 0
[pid 5415] close(4) = 0
[pid 5415] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5415] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 124.502156][ T5416] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 124.515856][ T27] audit: type=1800 audit(1676306812.278:175): pid=5415 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5415] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5415] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5415] exit_group(0) = ?
[pid 5415] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5415, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./173/binderfs") = 0
umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./173/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./173/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./173/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./173") = 0
mkdir("./174", 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 5417 attached
, child_tidptr=0x555555db65d0) = 5417
[pid 5417] chdir("./174") = 0
[pid 5417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5417] setpgid(0, 0) = 0
[pid 5417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5417] write(3, "1000", 4) = 4
[pid 5417] close(3) = 0
[pid 5417] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5417] memfd_create("syzkaller", 0) = 3
[pid 5417] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5417] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5417] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5417] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5417] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5417] close(3) = 0
[pid 5417] mkdir("./file0", 0777) = 0
[pid 5417] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5417] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5417] chdir("./file0") = 0
[ 124.809031][ T5417] loop0: detected capacity change from 0 to 4096
[ 124.824814][ T5417] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 124.832875][ T5417] NILFS (loop0): trying rollback from an earlier position
[ 124.847102][ T5417] NILFS (loop0): recovery complete
[pid 5417] ioctl(4, LOOP_CLR_FD) = 0
[pid 5417] close(4) = 0
[pid 5417] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5417] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 124.853076][ T5418] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 124.876208][ T27] audit: type=1800 audit(1676306812.608:176): pid=5417 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5417] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5417] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5417] exit_group(0) = ?
[pid 5417] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5417, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./174/binderfs") = 0
umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./174/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./174/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./174/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./174") = 0
mkdir("./175", 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=0x555555db65d0) = 5419
./strace-static-x86_64: Process 5419 attached
[pid 5419] chdir("./175") = 0
[pid 5419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5419] setpgid(0, 0) = 0
[pid 5419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5419] write(3, "1000", 4) = 4
[pid 5419] close(3) = 0
[pid 5419] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5419] memfd_create("syzkaller", 0) = 3
[pid 5419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5419] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5419] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5419] close(3) = 0
[pid 5419] mkdir("./file0", 0777) = 0
[ 125.154988][ T5419] loop0: detected capacity change from 0 to 4096
[ 125.169580][ T5419] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 125.177632][ T5419] NILFS (loop0): trying rollback from an earlier position
[ 125.189947][ T5419] NILFS (loop0): recovery complete
[pid 5419] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5419] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5419] chdir("./file0") = 0
[pid 5419] ioctl(4, LOOP_CLR_FD) = 0
[pid 5419] close(4) = 0
[pid 5419] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5419] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 125.195781][ T5420] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 125.200584][ T27] audit: type=1800 audit(1676306812.958:177): pid=5419 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5419] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5419] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5419] exit_group(0) = ?
[pid 5419] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5419, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./175/binderfs") = 0
umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./175/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./175/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./175") = 0
mkdir("./176", 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=0x555555db65d0) = 5421
./strace-static-x86_64: Process 5421 attached
[pid 5421] chdir("./176") = 0
[pid 5421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5421] setpgid(0, 0) = 0
[pid 5421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5421] write(3, "1000", 4) = 4
[pid 5421] close(3) = 0
[pid 5421] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5421] memfd_create("syzkaller", 0) = 3
[pid 5421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5421] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5421] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5421] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5421] close(3) = 0
[pid 5421] mkdir("./file0", 0777) = 0
[pid 5421] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5421] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5421] chdir("./file0") = 0
[pid 5421] ioctl(4, LOOP_CLR_FD) = 0
[pid 5421] close(4) = 0
[ 125.495182][ T5421] loop0: detected capacity change from 0 to 4096
[ 125.511874][ T5421] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 125.519941][ T5421] NILFS (loop0): trying rollback from an earlier position
[ 125.533269][ T5421] NILFS (loop0): recovery complete
[pid 5421] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5421] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 125.539420][ T5422] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 125.551761][ T27] audit: type=1800 audit(1676306813.318:178): pid=5421 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5421] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5421] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5421] exit_group(0) = ?
[pid 5421] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5421, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./176/binderfs") = 0
umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./176/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./176/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./176") = 0
mkdir("./177", 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=0x555555db65d0) = 5423
./strace-static-x86_64: Process 5423 attached
[pid 5423] chdir("./177") = 0
[pid 5423] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5423] setpgid(0, 0) = 0
[pid 5423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5423] write(3, "1000", 4) = 4
[pid 5423] close(3) = 0
[pid 5423] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5423] memfd_create("syzkaller", 0) = 3
[pid 5423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5423] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5423] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5423] close(3) = 0
[pid 5423] mkdir("./file0", 0777) = 0
[ 125.821073][ T5423] loop0: detected capacity change from 0 to 4096
[ 125.839267][ T5423] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 125.847303][ T5423] NILFS (loop0): trying rollback from an earlier position
[ 125.863216][ T5423] NILFS (loop0): recovery complete
[pid 5423] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5423] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5423] chdir("./file0") = 0
[pid 5423] ioctl(4, LOOP_CLR_FD) = 0
[pid 5423] close(4) = 0
[pid 5423] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5423] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 125.869544][ T5424] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 125.886405][ T27] audit: type=1800 audit(1676306813.648:179): pid=5423 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5423] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5423] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5423] exit_group(0) = ?
[pid 5423] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5423, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./177/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./177/binderfs") = 0
umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./177/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./177/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./177") = 0
mkdir("./178", 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=0x555555db65d0) = 5425
./strace-static-x86_64: Process 5425 attached
[pid 5425] chdir("./178") = 0
[pid 5425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5425] setpgid(0, 0) = 0
[pid 5425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5425] write(3, "1000", 4) = 4
[pid 5425] close(3) = 0
[pid 5425] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5425] memfd_create("syzkaller", 0) = 3
[pid 5425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5425] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5425] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5425] close(3) = 0
[pid 5425] mkdir("./file0", 0777) = 0
[ 126.192782][ T5425] loop0: detected capacity change from 0 to 4096
[ 126.209411][ T5425] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 126.217468][ T5425] NILFS (loop0): trying rollback from an earlier position
[ 126.230923][ T5425] NILFS (loop0): recovery complete
[pid 5425] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5425] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5425] chdir("./file0") = 0
[pid 5425] ioctl(4, LOOP_CLR_FD) = 0
[pid 5425] close(4) = 0
[pid 5425] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5425] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 126.237242][ T5426] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 126.258425][ T27] audit: type=1800 audit(1676306814.018:180): pid=5425 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5425] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5425] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5425] exit_group(0) = ?
[pid 5425] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5425, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./178/binderfs") = 0
umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./178/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./178/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./178") = 0
mkdir("./179", 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=0x555555db65d0) = 5427
./strace-static-x86_64: Process 5427 attached
[pid 5427] chdir("./179") = 0
[pid 5427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5427] setpgid(0, 0) = 0
[pid 5427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5427] write(3, "1000", 4) = 4
[pid 5427] close(3) = 0
[pid 5427] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5427] memfd_create("syzkaller", 0) = 3
[pid 5427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5427] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5427] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5427] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5427] close(3) = 0
[pid 5427] mkdir("./file0", 0777) = 0
[ 126.532908][ T5427] loop0: detected capacity change from 0 to 4096
[ 126.551844][ T5427] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 126.559957][ T5427] NILFS (loop0): trying rollback from an earlier position
[ 126.573570][ T5427] NILFS (loop0): recovery complete
[pid 5427] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5427] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5427] chdir("./file0") = 0
[pid 5427] ioctl(4, LOOP_CLR_FD) = 0
[pid 5427] close(4) = 0
[pid 5427] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5427] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 126.579975][ T5428] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 126.587552][ T27] audit: type=1800 audit(1676306814.348:181): pid=5427 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5427] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5427] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5427] exit_group(0) = ?
[pid 5427] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5427, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./179/binderfs") = 0
umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./179/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./179/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./179/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./179") = 0
mkdir("./180", 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=0x555555db65d0) = 5429
./strace-static-x86_64: Process 5429 attached
[pid 5429] chdir("./180") = 0
[pid 5429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5429] setpgid(0, 0) = 0
[pid 5429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5429] write(3, "1000", 4) = 4
[pid 5429] close(3) = 0
[pid 5429] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5429] memfd_create("syzkaller", 0) = 3
[pid 5429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5429] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5429] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5429] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5429] close(3) = 0
[pid 5429] mkdir("./file0", 0777) = 0
[ 126.864106][ T5429] loop0: detected capacity change from 0 to 4096
[ 126.881066][ T5429] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 126.889096][ T5429] NILFS (loop0): trying rollback from an earlier position
[ 126.902928][ T5429] NILFS (loop0): recovery complete
[pid 5429] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5429] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5429] chdir("./file0") = 0
[pid 5429] ioctl(4, LOOP_CLR_FD) = 0
[pid 5429] close(4) = 0
[pid 5429] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5429] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 126.909736][ T5430] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5429] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5429] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5429] exit_group(0) = ?
[pid 5429] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5429, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./180/binderfs") = 0
umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./180/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./180/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./180/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./180") = 0
mkdir("./181", 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=0x555555db65d0) = 5431
./strace-static-x86_64: Process 5431 attached
[pid 5431] chdir("./181") = 0
[pid 5431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5431] setpgid(0, 0) = 0
[pid 5431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5431] write(3, "1000", 4) = 4
[pid 5431] close(3) = 0
[pid 5431] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5431] memfd_create("syzkaller", 0) = 3
[pid 5431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5431] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5431] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5431] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5431] close(3) = 0
[pid 5431] mkdir("./file0", 0777) = 0
[ 127.202458][ T5431] loop0: detected capacity change from 0 to 4096
[ 127.218352][ T5431] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 127.226406][ T5431] NILFS (loop0): trying rollback from an earlier position
[ 127.239737][ T5431] NILFS (loop0): recovery complete
[pid 5431] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5431] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5431] chdir("./file0") = 0
[pid 5431] ioctl(4, LOOP_CLR_FD) = 0
[pid 5431] close(4) = 0
[pid 5431] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5431] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 127.245706][ T5432] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5431] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5431] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5431] exit_group(0) = ?
[pid 5431] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5431, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./181/binderfs") = 0
umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./181/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./181/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./181/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./181") = 0
mkdir("./182", 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=0x555555db65d0) = 5433
./strace-static-x86_64: Process 5433 attached
[pid 5433] chdir("./182") = 0
[pid 5433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5433] setpgid(0, 0) = 0
[pid 5433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5433] write(3, "1000", 4) = 4
[pid 5433] close(3) = 0
[pid 5433] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5433] memfd_create("syzkaller", 0) = 3
[pid 5433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5433] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5433] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5433] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5433] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5433] close(3) = 0
[pid 5433] mkdir("./file0", 0777) = 0
[ 127.534268][ T5433] loop0: detected capacity change from 0 to 4096
[ 127.549628][ T5433] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 127.557669][ T5433] NILFS (loop0): trying rollback from an earlier position
[ 127.571212][ T5433] NILFS (loop0): recovery complete
[pid 5433] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5433] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5433] chdir("./file0") = 0
[pid 5433] ioctl(4, LOOP_CLR_FD) = 0
[pid 5433] close(4) = 0
[pid 5433] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5433] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 127.577652][ T5434] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5433] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5433] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5433] exit_group(0) = ?
[pid 5433] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5433, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./182/binderfs") = 0
umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./182/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./182/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./182/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./182") = 0
mkdir("./183", 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=0x555555db65d0) = 5435
./strace-static-x86_64: Process 5435 attached
[pid 5435] chdir("./183") = 0
[pid 5435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5435] setpgid(0, 0) = 0
[pid 5435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5435] write(3, "1000", 4) = 4
[pid 5435] close(3) = 0
[pid 5435] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5435] memfd_create("syzkaller", 0) = 3
[pid 5435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5435] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5435] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5435] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5435] close(3) = 0
[pid 5435] mkdir("./file0", 0777) = 0
[ 127.869029][ T5435] loop0: detected capacity change from 0 to 4096
[ 127.894785][ T5435] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 127.902829][ T5435] NILFS (loop0): trying rollback from an earlier position
[pid 5435] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5435] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5435] chdir("./file0") = 0
[pid 5435] ioctl(4, LOOP_CLR_FD) = 0
[pid 5435] close(4) = 0
[pid 5435] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5435] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 127.916874][ T5435] NILFS (loop0): recovery complete
[ 127.927057][ T5436] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5435] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5435] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5435] exit_group(0) = ?
[pid 5435] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5435, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./183", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./183/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./183/binderfs") = 0
umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./183/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./183/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./183/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./183") = 0
mkdir("./184", 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=0x555555db65d0) = 5437
./strace-static-x86_64: Process 5437 attached
[pid 5437] chdir("./184") = 0
[pid 5437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5437] setpgid(0, 0) = 0
[pid 5437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5437] write(3, "1000", 4) = 4
[pid 5437] close(3) = 0
[pid 5437] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5437] memfd_create("syzkaller", 0) = 3
[pid 5437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5437] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5437] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5437] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5437] close(3) = 0
[pid 5437] mkdir("./file0", 0777) = 0
[ 128.229501][ T5437] loop0: detected capacity change from 0 to 4096
[ 128.248274][ T5437] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 128.256335][ T5437] NILFS (loop0): trying rollback from an earlier position
[ 128.270975][ T5437] NILFS (loop0): recovery complete
[pid 5437] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5437] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5437] chdir("./file0") = 0
[pid 5437] ioctl(4, LOOP_CLR_FD) = 0
[pid 5437] close(4) = 0
[pid 5437] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5437] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 128.277255][ T5438] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5437] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5437] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5437] exit_group(0) = ?
[pid 5437] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5437, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./184", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./184/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./184/binderfs") = 0
umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./184/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./184/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./184/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./184") = 0
mkdir("./185", 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=0x555555db65d0) = 5439
./strace-static-x86_64: Process 5439 attached
[pid 5439] chdir("./185") = 0
[pid 5439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5439] setpgid(0, 0) = 0
[pid 5439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5439] write(3, "1000", 4) = 4
[pid 5439] close(3) = 0
[pid 5439] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5439] memfd_create("syzkaller", 0) = 3
[pid 5439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5439] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5439] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5439] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5439] close(3) = 0
[pid 5439] mkdir("./file0", 0777) = 0
[ 128.567288][ T5439] loop0: detected capacity change from 0 to 4096
[ 128.584750][ T5439] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 128.592802][ T5439] NILFS (loop0): trying rollback from an earlier position
[ 128.606896][ T5439] NILFS (loop0): recovery complete
[pid 5439] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5439] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5439] chdir("./file0") = 0
[pid 5439] ioctl(4, LOOP_CLR_FD) = 0
[pid 5439] close(4) = 0
[pid 5439] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5439] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 128.613192][ T5440] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 128.618962][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 128.618973][ T27] audit: type=1800 audit(1676306816.368:187): pid=5439 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5439] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5439] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5439] exit_group(0) = ?
[pid 5439] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5439, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./185", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./185/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./185/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./185/binderfs") = 0
umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./185/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./185/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./185/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./185") = 0
mkdir("./186", 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=0x555555db65d0) = 5441
./strace-static-x86_64: Process 5441 attached
[pid 5441] chdir("./186") = 0
[pid 5441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5441] setpgid(0, 0) = 0
[pid 5441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5441] write(3, "1000", 4) = 4
[pid 5441] close(3) = 0
[pid 5441] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5441] memfd_create("syzkaller", 0) = 3
[pid 5441] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5441] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5441] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5441] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5441] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5441] close(3) = 0
[pid 5441] mkdir("./file0", 0777) = 0
[ 128.904917][ T5441] loop0: detected capacity change from 0 to 4096
[ 128.921903][ T5441] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 128.929997][ T5441] NILFS (loop0): trying rollback from an earlier position
[ 128.943200][ T5441] NILFS (loop0): recovery complete
[pid 5441] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5441] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5441] chdir("./file0") = 0
[pid 5441] ioctl(4, LOOP_CLR_FD) = 0
[pid 5441] close(4) = 0
[ 128.949443][ T5442] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5441] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5441] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 128.977578][ T27] audit: type=1800 audit(1676306816.738:188): pid=5441 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5441] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5441] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5441] exit_group(0) = ?
[pid 5441] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5441, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./186", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./186/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./186/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./186/binderfs") = 0
umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./186/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./186/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./186/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./186") = 0
mkdir("./187", 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=0x555555db65d0) = 5443
./strace-static-x86_64: Process 5443 attached
[pid 5443] chdir("./187") = 0
[pid 5443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5443] setpgid(0, 0) = 0
[pid 5443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5443] write(3, "1000", 4) = 4
[pid 5443] close(3) = 0
[pid 5443] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5443] memfd_create("syzkaller", 0) = 3
[pid 5443] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5443] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5443] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5443] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5443] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5443] close(3) = 0
[pid 5443] mkdir("./file0", 0777) = 0
[ 129.273893][ T5443] loop0: detected capacity change from 0 to 4096
[ 129.291332][ T5443] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 129.299439][ T5443] NILFS (loop0): trying rollback from an earlier position
[ 129.312681][ T5443] NILFS (loop0): recovery complete
[pid 5443] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5443] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5443] chdir("./file0") = 0
[pid 5443] ioctl(4, LOOP_CLR_FD) = 0
[pid 5443] close(4) = 0
[pid 5443] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5443] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 129.318849][ T5444] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 129.335500][ T27] audit: type=1800 audit(1676306817.098:189): pid=5443 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5443] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5443] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5443] exit_group(0) = ?
[pid 5443] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5443, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./187", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./187", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./187/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./187/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./187/binderfs") = 0
umount2("./187/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./187/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./187/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./187/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./187/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./187/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./187") = 0
mkdir("./188", 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=0x555555db65d0) = 5445
./strace-static-x86_64: Process 5445 attached
[pid 5445] chdir("./188") = 0
[pid 5445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5445] setpgid(0, 0) = 0
[pid 5445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5445] write(3, "1000", 4) = 4
[pid 5445] close(3) = 0
[pid 5445] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5445] memfd_create("syzkaller", 0) = 3
[pid 5445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5445] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5445] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5445] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5445] close(3) = 0
[pid 5445] mkdir("./file0", 0777) = 0
[ 129.628076][ T5445] loop0: detected capacity change from 0 to 4096
[ 129.644838][ T5445] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 129.652944][ T5445] NILFS (loop0): trying rollback from an earlier position
[ 129.667053][ T5445] NILFS (loop0): recovery complete
[pid 5445] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5445] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5445] chdir("./file0") = 0
[pid 5445] ioctl(4, LOOP_CLR_FD) = 0
[pid 5445] close(4) = 0
[pid 5445] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5445] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 129.672927][ T5446] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 129.696245][ T27] audit: type=1800 audit(1676306817.448:190): pid=5445 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5445] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5445] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5445] exit_group(0) = ?
[pid 5445] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5445, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./188", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./188", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./188/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./188/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./188/binderfs") = 0
umount2("./188/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./188/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./188/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./188/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./188/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./188/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./188") = 0
mkdir("./189", 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 5447 attached
<unfinished ...>
[pid 5447] chdir("./189") = 0
[pid 5447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5447] setpgid(0, 0) = 0
[pid 5447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5447] write(3, "1000", 4) = 4
[pid 5447] close(3) = 0
[pid 5447] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5447
[pid 5447] memfd_create("syzkaller", 0) = 3
[pid 5447] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5447] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5447] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5447] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5447] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5447] close(3) = 0
[pid 5447] mkdir("./file0", 0777) = 0
[pid 5447] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 129.986533][ T5447] loop0: detected capacity change from 0 to 4096
[ 130.002784][ T5447] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 130.010886][ T5447] NILFS (loop0): trying rollback from an earlier position
[ 130.024218][ T5447] NILFS (loop0): recovery complete
[pid 5447] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5447] chdir("./file0") = 0
[pid 5447] ioctl(4, LOOP_CLR_FD) = 0
[pid 5447] close(4) = 0
[pid 5447] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5447] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 130.030606][ T5448] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 130.043297][ T27] audit: type=1800 audit(1676306817.808:191): pid=5447 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5447] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5447] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5447] exit_group(0) = ?
[pid 5447] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5447, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./189", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./189", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./189/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./189/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./189/binderfs") = 0
umount2("./189/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./189/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./189/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./189/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./189/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./189/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./189") = 0
mkdir("./190", 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=0x555555db65d0) = 5449
./strace-static-x86_64: Process 5449 attached
[pid 5449] chdir("./190") = 0
[pid 5449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5449] setpgid(0, 0) = 0
[pid 5449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5449] write(3, "1000", 4) = 4
[pid 5449] close(3) = 0
[pid 5449] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5449] memfd_create("syzkaller", 0) = 3
[pid 5449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5449] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5449] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5449] close(3) = 0
[pid 5449] mkdir("./file0", 0777) = 0
[ 130.313263][ T5449] loop0: detected capacity change from 0 to 4096
[ 130.329360][ T5449] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 130.337400][ T5449] NILFS (loop0): trying rollback from an earlier position
[ 130.350815][ T5449] NILFS (loop0): recovery complete
[pid 5449] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5449] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5449] chdir("./file0") = 0
[pid 5449] ioctl(4, LOOP_CLR_FD) = 0
[pid 5449] close(4) = 0
[pid 5449] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5449] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 130.357064][ T5450] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 130.376249][ T27] audit: type=1800 audit(1676306818.138:192): pid=5449 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5449] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5449] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5449] exit_group(0) = ?
[pid 5449] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5449, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./190", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./190", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./190/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./190/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./190/binderfs") = 0
umount2("./190/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./190/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./190/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./190/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./190/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./190/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./190") = 0
mkdir("./191", 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=0x555555db65d0) = 5451
./strace-static-x86_64: Process 5451 attached
[pid 5451] chdir("./191") = 0
[pid 5451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5451] setpgid(0, 0) = 0
[pid 5451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5451] write(3, "1000", 4) = 4
[pid 5451] close(3) = 0
[pid 5451] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5451] memfd_create("syzkaller", 0) = 3
[pid 5451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5451] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5451] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5451] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5451] close(3) = 0
[pid 5451] mkdir("./file0", 0777) = 0
[ 130.664162][ T5451] loop0: detected capacity change from 0 to 4096
[ 130.680920][ T5451] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 130.688968][ T5451] NILFS (loop0): trying rollback from an earlier position
[ 130.702327][ T5451] NILFS (loop0): recovery complete
[pid 5451] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5451] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5451] chdir("./file0") = 0
[pid 5451] ioctl(4, LOOP_CLR_FD) = 0
[pid 5451] close(4) = 0
[pid 5451] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5451] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 130.708380][ T5452] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 130.723357][ T27] audit: type=1800 audit(1676306818.488:193): pid=5451 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5451] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5451] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5451] exit_group(0) = ?
[pid 5451] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5451, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./191", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./191", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./191/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./191/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./191/binderfs") = 0
umount2("./191/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./191/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./191/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./191/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./191/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./191/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./191") = 0
mkdir("./192", 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=0x555555db65d0) = 5453
./strace-static-x86_64: Process 5453 attached
[pid 5453] chdir("./192") = 0
[pid 5453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5453] setpgid(0, 0) = 0
[pid 5453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5453] write(3, "1000", 4) = 4
[pid 5453] close(3) = 0
[pid 5453] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5453] memfd_create("syzkaller", 0) = 3
[pid 5453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5453] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5453] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5453] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5453] close(3) = 0
[pid 5453] mkdir("./file0", 0777) = 0
[ 131.018334][ T5453] loop0: detected capacity change from 0 to 4096
[ 131.035392][ T5453] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 131.043476][ T5453] NILFS (loop0): trying rollback from an earlier position
[ 131.057967][ T5453] NILFS (loop0): recovery complete
[pid 5453] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5453] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5453] chdir("./file0") = 0
[pid 5453] ioctl(4, LOOP_CLR_FD) = 0
[pid 5453] close(4) = 0
[pid 5453] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5453] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 131.063824][ T5454] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 131.079684][ T27] audit: type=1800 audit(1676306818.838:194): pid=5453 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5453] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5453] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5453] exit_group(0) = ?
[pid 5453] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5453, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./192", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./192", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./192/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./192/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./192/binderfs") = 0
umount2("./192/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./192/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./192/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./192/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./192/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./192/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./192") = 0
mkdir("./193", 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 5455 attached
<unfinished ...>
[pid 5455] chdir("./193") = 0
[pid 5455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5455] setpgid(0, 0 <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5455
[pid 5455] <... setpgid resumed>) = 0
[pid 5455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5455] write(3, "1000", 4) = 4
[pid 5455] close(3) = 0
[pid 5455] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5455] memfd_create("syzkaller", 0) = 3
[pid 5455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5455] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5455] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5455] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5455] close(3) = 0
[pid 5455] mkdir("./file0", 0777) = 0
[pid 5455] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5455] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5455] chdir("./file0") = 0
[pid 5455] ioctl(4, LOOP_CLR_FD) = 0
[ 131.384504][ T5455] loop0: detected capacity change from 0 to 4096
[ 131.401723][ T5455] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 131.409781][ T5455] NILFS (loop0): trying rollback from an earlier position
[ 131.423718][ T5455] NILFS (loop0): recovery complete
[pid 5455] close(4) = 0
[pid 5455] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5455] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 131.429824][ T5456] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 131.438090][ T27] audit: type=1800 audit(1676306819.198:195): pid=5455 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5455] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5455] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5455] exit_group(0) = ?
[pid 5455] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5455, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./193", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./193", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./193/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./193/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./193/binderfs") = 0
umount2("./193/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./193/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./193/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./193/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./193/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./193/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./193") = 0
mkdir("./194", 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=0x555555db65d0) = 5457
./strace-static-x86_64: Process 5457 attached
[pid 5457] chdir("./194") = 0
[pid 5457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5457] setpgid(0, 0) = 0
[pid 5457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5457] write(3, "1000", 4) = 4
[pid 5457] close(3) = 0
[pid 5457] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5457] memfd_create("syzkaller", 0) = 3
[pid 5457] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5457] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5457] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5457] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5457] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5457] close(3) = 0
[pid 5457] mkdir("./file0", 0777) = 0
[ 131.738494][ T5457] loop0: detected capacity change from 0 to 4096
[ 131.752663][ T5457] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 131.761244][ T5457] NILFS (loop0): trying rollback from an earlier position
[ 131.775471][ T5457] NILFS (loop0): recovery complete
[pid 5457] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5457] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5457] chdir("./file0") = 0
[pid 5457] ioctl(4, LOOP_CLR_FD) = 0
[pid 5457] close(4) = 0
[pid 5457] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5457] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 131.782517][ T5458] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 131.808718][ T27] audit: type=1800 audit(1676306819.568:196): pid=5457 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5457] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5457] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5457] exit_group(0) = ?
[pid 5457] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5457, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./194", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./194", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./194/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./194/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./194/binderfs") = 0
umount2("./194/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./194/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./194/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./194/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./194/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./194/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./194") = 0
mkdir("./195", 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=0x555555db65d0) = 5459
./strace-static-x86_64: Process 5459 attached
[pid 5459] chdir("./195") = 0
[pid 5459] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5459] setpgid(0, 0) = 0
[pid 5459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5459] write(3, "1000", 4) = 4
[pid 5459] close(3) = 0
[pid 5459] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5459] memfd_create("syzkaller", 0) = 3
[pid 5459] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5459] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5459] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5459] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5459] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5459] close(3) = 0
[pid 5459] mkdir("./file0", 0777) = 0
[pid 5459] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 132.112908][ T5459] loop0: detected capacity change from 0 to 4096
[ 132.129582][ T5459] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 132.137719][ T5459] NILFS (loop0): trying rollback from an earlier position
[ 132.152501][ T5459] NILFS (loop0): recovery complete
[pid 5459] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5459] chdir("./file0") = 0
[pid 5459] ioctl(4, LOOP_CLR_FD) = 0
[pid 5459] close(4) = 0
[pid 5459] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5459] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 132.159400][ T5460] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5459] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5459] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5459] exit_group(0) = ?
[pid 5459] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5459, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./195", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./195", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./195/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./195/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./195/binderfs") = 0
umount2("./195/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./195/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./195/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./195/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./195/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./195/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./195") = 0
mkdir("./196", 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=0x555555db65d0) = 5461
./strace-static-x86_64: Process 5461 attached
[pid 5461] chdir("./196") = 0
[pid 5461] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5461] setpgid(0, 0) = 0
[pid 5461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5461] write(3, "1000", 4) = 4
[pid 5461] close(3) = 0
[pid 5461] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5461] memfd_create("syzkaller", 0) = 3
[pid 5461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5461] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5461] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5461] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5461] close(3) = 0
[pid 5461] mkdir("./file0", 0777) = 0
[pid 5461] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5461] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5461] chdir("./file0") = 0
[pid 5461] ioctl(4, LOOP_CLR_FD) = 0
[pid 5461] close(4) = 0
[ 132.468620][ T5461] loop0: detected capacity change from 0 to 4096
[ 132.485279][ T5461] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 132.493318][ T5461] NILFS (loop0): trying rollback from an earlier position
[ 132.505986][ T5461] NILFS (loop0): recovery complete
[pid 5461] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5461] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 132.511797][ T5462] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5461] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5461] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5461] exit_group(0) = ?
[pid 5461] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5461, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./196", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./196", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./196/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./196/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./196/binderfs") = 0
umount2("./196/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./196/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./196/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./196/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./196/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./196/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./196") = 0
mkdir("./197", 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=0x555555db65d0) = 5463
./strace-static-x86_64: Process 5463 attached
[pid 5463] chdir("./197") = 0
[pid 5463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5463] setpgid(0, 0) = 0
[pid 5463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5463] write(3, "1000", 4) = 4
[pid 5463] close(3) = 0
[pid 5463] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5463] memfd_create("syzkaller", 0) = 3
[pid 5463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5463] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5463] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5463] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5463] close(3) = 0
[pid 5463] mkdir("./file0", 0777) = 0
[ 132.773585][ T5463] loop0: detected capacity change from 0 to 4096
[ 132.792349][ T5463] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 132.800442][ T5463] NILFS (loop0): trying rollback from an earlier position
[ 132.814938][ T5463] NILFS (loop0): recovery complete
[pid 5463] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5463] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5463] chdir("./file0") = 0
[pid 5463] ioctl(4, LOOP_CLR_FD) = 0
[pid 5463] close(4) = 0
[pid 5463] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5463] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 132.821014][ T5464] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5463] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5463] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5463] exit_group(0) = ?
[pid 5463] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5463, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./197", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./197", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./197/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./197/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./197/binderfs") = 0
umount2("./197/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./197/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./197/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./197/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./197/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./197/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./197") = 0
mkdir("./198", 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=0x555555db65d0) = 5465
./strace-static-x86_64: Process 5465 attached
[pid 5465] chdir("./198") = 0
[pid 5465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5465] setpgid(0, 0) = 0
[pid 5465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5465] write(3, "1000", 4) = 4
[pid 5465] close(3) = 0
[pid 5465] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5465] memfd_create("syzkaller", 0) = 3
[pid 5465] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5465] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5465] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5465] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5465] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5465] close(3) = 0
[pid 5465] mkdir("./file0", 0777) = 0
[pid 5465] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 133.115869][ T5465] loop0: detected capacity change from 0 to 4096
[ 133.134765][ T5465] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 133.142846][ T5465] NILFS (loop0): trying rollback from an earlier position
[ 133.158954][ T5465] NILFS (loop0): recovery complete
[pid 5465] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5465] chdir("./file0") = 0
[pid 5465] ioctl(4, LOOP_CLR_FD) = 0
[pid 5465] close(4) = 0
[pid 5465] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5465] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 133.164985][ T5466] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5465] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5465] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5465] exit_group(0) = ?
[pid 5465] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5465, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./198", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./198", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./198/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./198/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./198/binderfs") = 0
umount2("./198/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./198/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./198/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./198/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./198/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./198/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./198") = 0
mkdir("./199", 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=0x555555db65d0) = 5467
./strace-static-x86_64: Process 5467 attached
[pid 5467] chdir("./199") = 0
[pid 5467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5467] setpgid(0, 0) = 0
[pid 5467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5467] write(3, "1000", 4) = 4
[pid 5467] close(3) = 0
[pid 5467] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5467] memfd_create("syzkaller", 0) = 3
[pid 5467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5467] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5467] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5467] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5467] close(3) = 0
[pid 5467] mkdir("./file0", 0777) = 0
[pid 5467] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5467] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5467] chdir("./file0") = 0
[pid 5467] ioctl(4, LOOP_CLR_FD) = 0
[pid 5467] close(4) = 0
[ 133.468126][ T5467] loop0: detected capacity change from 0 to 4096
[ 133.482899][ T5467] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 133.490980][ T5467] NILFS (loop0): trying rollback from an earlier position
[ 133.504618][ T5467] NILFS (loop0): recovery complete
[pid 5467] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5467] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 133.510866][ T5468] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5467] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5467] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5467] exit_group(0) = ?
[pid 5467] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5467, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./199", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./199", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./199/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./199/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./199/binderfs") = 0
umount2("./199/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./199/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./199/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./199/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./199/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./199/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./199") = 0
mkdir("./200", 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=0x555555db65d0) = 5469
./strace-static-x86_64: Process 5469 attached
[pid 5469] chdir("./200") = 0
[pid 5469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5469] setpgid(0, 0) = 0
[pid 5469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5469] write(3, "1000", 4) = 4
[pid 5469] close(3) = 0
[pid 5469] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5469] memfd_create("syzkaller", 0) = 3
[pid 5469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5469] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5469] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5469] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5469] close(3) = 0
[pid 5469] mkdir("./file0", 0777) = 0
[ 133.792900][ T5469] loop0: detected capacity change from 0 to 4096
[ 133.807617][ T5469] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 133.815629][ T5469] NILFS (loop0): trying rollback from an earlier position
[ 133.829136][ T5469] NILFS (loop0): recovery complete
[pid 5469] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5469] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5469] chdir("./file0") = 0
[pid 5469] ioctl(4, LOOP_CLR_FD) = 0
[pid 5469] close(4) = 0
[pid 5469] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5469] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 133.835108][ T5470] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 133.847681][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 133.847690][ T27] audit: type=1800 audit(1676306821.608:202): pid=5469 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5469] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5469] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5469] exit_group(0) = ?
[pid 5469] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5469, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./200", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./200", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./200/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./200/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./200/binderfs") = 0
umount2("./200/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./200/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./200/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./200/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./200/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./200/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./200") = 0
mkdir("./201", 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=0x555555db65d0) = 5471
./strace-static-x86_64: Process 5471 attached
[pid 5471] chdir("./201") = 0
[pid 5471] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5471] setpgid(0, 0) = 0
[pid 5471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5471] write(3, "1000", 4) = 4
[pid 5471] close(3) = 0
[pid 5471] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5471] memfd_create("syzkaller", 0) = 3
[pid 5471] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5471] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5471] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5471] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5471] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5471] close(3) = 0
[pid 5471] mkdir("./file0", 0777) = 0
[ 134.130076][ T5471] loop0: detected capacity change from 0 to 4096
[ 134.146080][ T5471] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 134.154289][ T5471] NILFS (loop0): trying rollback from an earlier position
[ 134.167558][ T5471] NILFS (loop0): recovery complete
[pid 5471] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5471] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5471] chdir("./file0") = 0
[pid 5471] ioctl(4, LOOP_CLR_FD) = 0
[pid 5471] close(4) = 0
[pid 5471] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5471] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 134.173505][ T5472] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 134.177378][ T27] audit: type=1800 audit(1676306821.938:203): pid=5471 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5471] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5471] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5471] exit_group(0) = ?
[pid 5471] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5471, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./201", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./201", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./201/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./201/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./201/binderfs") = 0
umount2("./201/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./201/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./201/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./201/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./201/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./201/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./201") = 0
mkdir("./202", 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=0x555555db65d0) = 5473
./strace-static-x86_64: Process 5473 attached
[pid 5473] chdir("./202") = 0
[pid 5473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5473] setpgid(0, 0) = 0
[pid 5473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5473] write(3, "1000", 4) = 4
[pid 5473] close(3) = 0
[pid 5473] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5473] memfd_create("syzkaller", 0) = 3
[pid 5473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5473] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5473] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5473] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5473] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5473] close(3) = 0
[pid 5473] mkdir("./file0", 0777) = 0
[pid 5473] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 134.498248][ T5473] loop0: detected capacity change from 0 to 4096
[ 134.514286][ T5473] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 134.522437][ T5473] NILFS (loop0): trying rollback from an earlier position
[ 134.537277][ T5473] NILFS (loop0): recovery complete
[pid 5473] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5473] chdir("./file0") = 0
[pid 5473] ioctl(4, LOOP_CLR_FD) = 0
[pid 5473] close(4) = 0
[pid 5473] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5473] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 134.544140][ T5474] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 134.568453][ T27] audit: type=1800 audit(1676306822.328:204): pid=5473 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5473] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5473] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5473] exit_group(0) = ?
[pid 5473] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5473, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./202", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./202", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./202/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./202/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./202/binderfs") = 0
umount2("./202/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./202/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./202/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./202/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./202/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./202/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./202") = 0
mkdir("./203", 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=0x555555db65d0) = 5475
./strace-static-x86_64: Process 5475 attached
[pid 5475] chdir("./203") = 0
[pid 5475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5475] setpgid(0, 0) = 0
[pid 5475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5475] write(3, "1000", 4) = 4
[pid 5475] close(3) = 0
[pid 5475] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5475] memfd_create("syzkaller", 0) = 3
[pid 5475] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5475] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5475] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5475] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5475] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5475] close(3) = 0
[pid 5475] mkdir("./file0", 0777) = 0
[pid 5475] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5475] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5475] chdir("./file0") = 0
[ 134.868519][ T5475] loop0: detected capacity change from 0 to 4096
[ 134.885498][ T5475] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 134.893621][ T5475] NILFS (loop0): trying rollback from an earlier position
[ 134.907526][ T5475] NILFS (loop0): recovery complete
[pid 5475] ioctl(4, LOOP_CLR_FD) = 0
[pid 5475] close(4) = 0
[pid 5475] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5475] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 134.913395][ T5476] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 134.924924][ T27] audit: type=1800 audit(1676306822.688:205): pid=5475 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5475] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5475] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5475] exit_group(0) = ?
[pid 5475] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5475, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./203", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./203", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./203/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./203/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./203/binderfs") = 0
umount2("./203/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./203/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./203/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./203/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./203/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./203/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./203") = 0
mkdir("./204", 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=0x555555db65d0) = 5477
./strace-static-x86_64: Process 5477 attached
[pid 5477] chdir("./204") = 0
[pid 5477] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5477] setpgid(0, 0) = 0
[pid 5477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5477] write(3, "1000", 4) = 4
[pid 5477] close(3) = 0
[pid 5477] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5477] memfd_create("syzkaller", 0) = 3
[pid 5477] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5477] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5477] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5477] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5477] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5477] close(3) = 0
[pid 5477] mkdir("./file0", 0777) = 0
[ 135.227334][ T5477] loop0: detected capacity change from 0 to 4096
[ 135.243758][ T5477] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 135.251802][ T5477] NILFS (loop0): trying rollback from an earlier position
[ 135.265375][ T5477] NILFS (loop0): recovery complete
[pid 5477] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5477] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5477] chdir("./file0") = 0
[pid 5477] ioctl(4, LOOP_CLR_FD) = 0
[pid 5477] close(4) = 0
[pid 5477] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5477] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 135.271280][ T5478] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 135.292855][ T27] audit: type=1800 audit(1676306823.048:206): pid=5477 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5477] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5477] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5477] exit_group(0) = ?
[pid 5477] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5477, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./204", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./204", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./204/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./204/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./204/binderfs") = 0
umount2("./204/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./204/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./204/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./204/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./204/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./204/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./204") = 0
mkdir("./205", 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=0x555555db65d0) = 5479
./strace-static-x86_64: Process 5479 attached
[pid 5479] chdir("./205") = 0
[pid 5479] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5479] setpgid(0, 0) = 0
[pid 5479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5479] write(3, "1000", 4) = 4
[pid 5479] close(3) = 0
[pid 5479] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5479] memfd_create("syzkaller", 0) = 3
[pid 5479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5479] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5479] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5479] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5479] close(3) = 0
[pid 5479] mkdir("./file0", 0777) = 0
[pid 5479] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 135.566995][ T5479] loop0: detected capacity change from 0 to 4096
[ 135.581980][ T5479] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 135.590043][ T5479] NILFS (loop0): trying rollback from an earlier position
[ 135.604252][ T5479] NILFS (loop0): recovery complete
[pid 5479] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5479] chdir("./file0") = 0
[pid 5479] ioctl(4, LOOP_CLR_FD) = 0
[pid 5479] close(4) = 0
[pid 5479] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5479] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 135.610854][ T5480] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 135.627743][ T27] audit: type=1800 audit(1676306823.388:207): pid=5479 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5479] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5479] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5479] exit_group(0) = ?
[pid 5479] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5479, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./205", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./205", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./205/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./205/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./205/binderfs") = 0
umount2("./205/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./205/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./205/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./205/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./205/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./205/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./205") = 0
mkdir("./206", 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 5481 attached
, child_tidptr=0x555555db65d0) = 5481
[pid 5481] chdir("./206") = 0
[pid 5481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5481] setpgid(0, 0) = 0
[pid 5481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5481] write(3, "1000", 4) = 4
[pid 5481] close(3) = 0
[pid 5481] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5481] memfd_create("syzkaller", 0) = 3
[pid 5481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5481] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5481] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5481] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5481] close(3) = 0
[pid 5481] mkdir("./file0", 0777) = 0
[ 135.916297][ T5481] loop0: detected capacity change from 0 to 4096
[ 135.932658][ T5481] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 135.940712][ T5481] NILFS (loop0): trying rollback from an earlier position
[ 135.954348][ T5481] NILFS (loop0): recovery complete
[pid 5481] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5481] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5481] chdir("./file0") = 0
[pid 5481] ioctl(4, LOOP_CLR_FD) = 0
[pid 5481] close(4) = 0
[pid 5481] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5481] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 135.961010][ T5482] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 135.978226][ T27] audit: type=1800 audit(1676306823.738:208): pid=5481 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5481] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5481] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5481] exit_group(0) = ?
[pid 5481] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5481, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./206", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./206", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./206/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./206/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./206/binderfs") = 0
umount2("./206/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./206/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./206/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./206/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./206/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./206/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./206") = 0
mkdir("./207", 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=0x555555db65d0) = 5483
./strace-static-x86_64: Process 5483 attached
[pid 5483] chdir("./207") = 0
[pid 5483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5483] setpgid(0, 0) = 0
[pid 5483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5483] write(3, "1000", 4) = 4
[pid 5483] close(3) = 0
[pid 5483] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5483] memfd_create("syzkaller", 0) = 3
[pid 5483] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5483] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5483] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5483] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5483] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5483] close(3) = 0
[pid 5483] mkdir("./file0", 0777) = 0
[pid 5483] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5483] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5483] chdir("./file0") = 0
[pid 5483] ioctl(4, LOOP_CLR_FD) = 0
[ 136.260044][ T5483] loop0: detected capacity change from 0 to 4096
[ 136.277551][ T5483] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 136.285598][ T5483] NILFS (loop0): trying rollback from an earlier position
[ 136.299812][ T5483] NILFS (loop0): recovery complete
[pid 5483] close(4) = 0
[pid 5483] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5483] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 136.306394][ T5484] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 136.318377][ T27] audit: type=1800 audit(1676306824.078:209): pid=5483 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5483] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5483] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5483] exit_group(0) = ?
[pid 5483] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5483, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./207", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./207", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./207/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./207/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./207/binderfs") = 0
umount2("./207/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./207/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./207/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./207/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./207/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./207/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./207") = 0
mkdir("./208", 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=0x555555db65d0) = 5485
./strace-static-x86_64: Process 5485 attached
[pid 5485] chdir("./208") = 0
[pid 5485] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5485] setpgid(0, 0) = 0
[pid 5485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5485] write(3, "1000", 4) = 4
[pid 5485] close(3) = 0
[pid 5485] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5485] memfd_create("syzkaller", 0) = 3
[pid 5485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5485] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5485] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5485] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5485] close(3) = 0
[pid 5485] mkdir("./file0", 0777) = 0
[ 136.611046][ T5485] loop0: detected capacity change from 0 to 4096
[ 136.627213][ T5485] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 136.635257][ T5485] NILFS (loop0): trying rollback from an earlier position
[ 136.648904][ T5485] NILFS (loop0): recovery complete
[pid 5485] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5485] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5485] chdir("./file0") = 0
[pid 5485] ioctl(4, LOOP_CLR_FD) = 0
[pid 5485] close(4) = 0
[pid 5485] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5485] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 136.654984][ T5486] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 136.671044][ T27] audit: type=1800 audit(1676306824.428:210): pid=5485 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5485] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5485] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5485] exit_group(0) = ?
[pid 5485] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5485, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./208", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./208", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./208/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./208/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./208/binderfs") = 0
umount2("./208/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./208/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./208/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./208/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./208/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./208/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./208") = 0
mkdir("./209", 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=0x555555db65d0) = 5487
./strace-static-x86_64: Process 5487 attached
[pid 5487] chdir("./209") = 0
[pid 5487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5487] setpgid(0, 0) = 0
[pid 5487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5487] write(3, "1000", 4) = 4
[pid 5487] close(3) = 0
[pid 5487] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5487] memfd_create("syzkaller", 0) = 3
[pid 5487] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5487] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5487] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5487] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5487] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5487] close(3) = 0
[pid 5487] mkdir("./file0", 0777) = 0
[ 136.965157][ T5487] loop0: detected capacity change from 0 to 4096
[ 136.982215][ T5487] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 136.990327][ T5487] NILFS (loop0): trying rollback from an earlier position
[ 137.004350][ T5487] NILFS (loop0): recovery complete
[pid 5487] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5487] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5487] chdir("./file0") = 0
[pid 5487] ioctl(4, LOOP_CLR_FD) = 0
[pid 5487] close(4) = 0
[pid 5487] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5487] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 137.010803][ T5488] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 137.016385][ T27] audit: type=1800 audit(1676306824.778:211): pid=5487 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5487] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5487] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5487] exit_group(0) = ?
[pid 5487] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5487, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./209", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./209", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./209/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./209/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./209/binderfs") = 0
umount2("./209/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./209/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./209/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./209/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./209/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./209/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./209") = 0
mkdir("./210", 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=0x555555db65d0) = 5489
./strace-static-x86_64: Process 5489 attached
[pid 5489] chdir("./210") = 0
[pid 5489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5489] setpgid(0, 0) = 0
[pid 5489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5489] write(3, "1000", 4) = 4
[pid 5489] close(3) = 0
[pid 5489] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5489] memfd_create("syzkaller", 0) = 3
[pid 5489] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5489] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5489] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5489] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5489] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5489] close(3) = 0
[pid 5489] mkdir("./file0", 0777) = 0
[pid 5489] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 137.306860][ T5489] loop0: detected capacity change from 0 to 4096
[ 137.321752][ T5489] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 137.329945][ T5489] NILFS (loop0): trying rollback from an earlier position
[ 137.343804][ T5489] NILFS (loop0): recovery complete
[pid 5489] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5489] chdir("./file0") = 0
[pid 5489] ioctl(4, LOOP_CLR_FD) = 0
[pid 5489] close(4) = 0
[pid 5489] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5489] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 137.351052][ T5490] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5489] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5489] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5489] exit_group(0) = ?
[pid 5489] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5489, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./210", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./210", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./210/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./210/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./210/binderfs") = 0
umount2("./210/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./210/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./210/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./210/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./210/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./210/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./210") = 0
mkdir("./211", 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=0x555555db65d0) = 5491
./strace-static-x86_64: Process 5491 attached
[pid 5491] chdir("./211") = 0
[pid 5491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5491] setpgid(0, 0) = 0
[pid 5491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5491] write(3, "1000", 4) = 4
[pid 5491] close(3) = 0
[pid 5491] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5491] memfd_create("syzkaller", 0) = 3
[pid 5491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5491] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5491] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5491] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5491] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5491] close(3) = 0
[pid 5491] mkdir("./file0", 0777) = 0
[ 137.733325][ T5491] loop0: detected capacity change from 0 to 4096
[ 137.754891][ T5491] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 137.763398][ T5491] NILFS (loop0): trying rollback from an earlier position
[pid 5491] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5491] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5491] chdir("./file0") = 0
[pid 5491] ioctl(4, LOOP_CLR_FD) = 0
[pid 5491] close(4) = 0
[pid 5491] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5491] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 137.782340][ T5491] NILFS (loop0): recovery complete
[ 137.796304][ T5492] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5491] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5491] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5491] exit_group(0) = ?
[pid 5491] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5491, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./211", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./211", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./211/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./211/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./211/binderfs") = 0
umount2("./211/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./211/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./211/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./211/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./211/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./211/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./211") = 0
mkdir("./212", 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 5493 attached
<unfinished ...>
[pid 5493] chdir("./212") = 0
[pid 5493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5493] setpgid(0, 0) = 0
[pid 5493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5493
[pid 5493] <... openat resumed>) = 3
[pid 5493] write(3, "1000", 4) = 4
[pid 5493] close(3) = 0
[pid 5493] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5493] memfd_create("syzkaller", 0) = 3
[pid 5493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5493] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5493] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5493] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5493] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5493] close(3) = 0
[pid 5493] mkdir("./file0", 0777) = 0
[ 138.234571][ T5493] loop0: detected capacity change from 0 to 4096
[ 138.253625][ T5493] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 138.261763][ T5493] NILFS (loop0): trying rollback from an earlier position
[ 138.275648][ T5493] NILFS (loop0): recovery complete
[pid 5493] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5493] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5493] chdir("./file0") = 0
[pid 5493] ioctl(4, LOOP_CLR_FD) = 0
[pid 5493] close(4) = 0
[pid 5493] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5493] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 138.282014][ T5494] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5493] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5493] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5493] exit_group(0) = ?
[pid 5493] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5493, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./212", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./212", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./212/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./212/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./212/binderfs") = 0
umount2("./212/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./212/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./212/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./212/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./212/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./212/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./212") = 0
mkdir("./213", 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=0x555555db65d0) = 5495
./strace-static-x86_64: Process 5495 attached
[pid 5495] chdir("./213") = 0
[pid 5495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5495] setpgid(0, 0) = 0
[pid 5495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5495] write(3, "1000", 4) = 4
[pid 5495] close(3) = 0
[pid 5495] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5495] memfd_create("syzkaller", 0) = 3
[pid 5495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5495] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5495] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5495] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5495] close(3) = 0
[pid 5495] mkdir("./file0", 0777) = 0
[ 138.581821][ T5495] loop0: detected capacity change from 0 to 4096
[ 138.597638][ T5495] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 138.605682][ T5495] NILFS (loop0): trying rollback from an earlier position
[ 138.619216][ T5495] NILFS (loop0): recovery complete
[pid 5495] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5495] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5495] chdir("./file0") = 0
[pid 5495] ioctl(4, LOOP_CLR_FD) = 0
[pid 5495] close(4) = 0
[pid 5495] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5495] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 138.625151][ T5496] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5495] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5495] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5495] exit_group(0) = ?
[pid 5495] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5495, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./213", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./213", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./213/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./213/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./213/binderfs") = 0
umount2("./213/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./213/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./213/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./213/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./213/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./213/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./213") = 0
mkdir("./214", 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=0x555555db65d0) = 5497
./strace-static-x86_64: Process 5497 attached
[pid 5497] chdir("./214") = 0
[pid 5497] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5497] setpgid(0, 0) = 0
[pid 5497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5497] write(3, "1000", 4) = 4
[pid 5497] close(3) = 0
[pid 5497] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5497] memfd_create("syzkaller", 0) = 3
[pid 5497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5497] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5497] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5497] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5497] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5497] close(3) = 0
[pid 5497] mkdir("./file0", 0777) = 0
[ 138.895134][ T5497] loop0: detected capacity change from 0 to 4096
[ 138.912369][ T5497] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 138.920644][ T5497] NILFS (loop0): trying rollback from an earlier position
[ 138.937694][ T5497] NILFS (loop0): recovery complete
[pid 5497] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5497] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5497] chdir("./file0") = 0
[pid 5497] ioctl(4, LOOP_CLR_FD) = 0
[pid 5497] close(4) = 0
[pid 5497] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5497] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 138.943576][ T5498] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 138.959434][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 138.959446][ T27] audit: type=1800 audit(1676306826.718:216): pid=5497 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5497] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5497] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5497] exit_group(0) = ?
[pid 5497] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5497, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./214", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./214", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./214/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./214/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./214/binderfs") = 0
umount2("./214/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./214/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./214/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./214/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./214/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./214/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./214") = 0
mkdir("./215", 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=0x555555db65d0) = 5499
./strace-static-x86_64: Process 5499 attached
[pid 5499] chdir("./215") = 0
[pid 5499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5499] setpgid(0, 0) = 0
[pid 5499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5499] write(3, "1000", 4) = 4
[pid 5499] close(3) = 0
[pid 5499] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5499] memfd_create("syzkaller", 0) = 3
[pid 5499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5499] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5499] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5499] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5499] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5499] close(3) = 0
[pid 5499] mkdir("./file0", 0777) = 0
[pid 5499] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5499] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5499] chdir("./file0") = 0
[pid 5499] ioctl(4, LOOP_CLR_FD) = 0
[ 139.250825][ T5499] loop0: detected capacity change from 0 to 4096
[ 139.266928][ T5499] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 139.274949][ T5499] NILFS (loop0): trying rollback from an earlier position
[ 139.287982][ T5499] NILFS (loop0): recovery complete
[pid 5499] close(4) = 0
[pid 5499] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5499] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 139.294749][ T5500] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 139.307434][ T27] audit: type=1800 audit(1676306827.068:217): pid=5499 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5499] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5499] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5499] exit_group(0) = ?
[pid 5499] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5499, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./215", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./215", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./215/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./215/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./215/binderfs") = 0
umount2("./215/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./215/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./215/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./215/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./215/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./215/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./215") = 0
mkdir("./216", 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=0x555555db65d0) = 5501
./strace-static-x86_64: Process 5501 attached
[pid 5501] chdir("./216") = 0
[pid 5501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5501] setpgid(0, 0) = 0
[pid 5501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5501] write(3, "1000", 4) = 4
[pid 5501] close(3) = 0
[pid 5501] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5501] memfd_create("syzkaller", 0) = 3
[pid 5501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5501] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5501] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5501] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5501] close(3) = 0
[pid 5501] mkdir("./file0", 0777) = 0
[pid 5501] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5501] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5501] chdir("./file0") = 0
[ 139.592800][ T5501] loop0: detected capacity change from 0 to 4096
[ 139.608426][ T5501] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 139.616498][ T5501] NILFS (loop0): trying rollback from an earlier position
[ 139.630008][ T5501] NILFS (loop0): recovery complete
[pid 5501] ioctl(4, LOOP_CLR_FD) = 0
[pid 5501] close(4) = 0
[pid 5501] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5501] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 139.635934][ T5502] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 139.654971][ T27] audit: type=1800 audit(1676306827.408:218): pid=5501 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5501] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5501] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5501] exit_group(0) = ?
[pid 5501] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5501, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./216", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./216", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./216/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./216/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./216/binderfs") = 0
umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./216/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./216/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./216/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./216/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./216") = 0
mkdir("./217", 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=0x555555db65d0) = 5503
./strace-static-x86_64: Process 5503 attached
[pid 5503] chdir("./217") = 0
[pid 5503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5503] setpgid(0, 0) = 0
[pid 5503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5503] write(3, "1000", 4) = 4
[pid 5503] close(3) = 0
[pid 5503] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5503] memfd_create("syzkaller", 0) = 3
[pid 5503] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5503] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5503] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5503] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5503] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5503] close(3) = 0
[pid 5503] mkdir("./file0", 0777) = 0
[ 139.932533][ T5503] loop0: detected capacity change from 0 to 4096
[ 139.949868][ T5503] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 139.957949][ T5503] NILFS (loop0): trying rollback from an earlier position
[ 139.972035][ T5503] NILFS (loop0): recovery complete
[pid 5503] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5503] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5503] chdir("./file0") = 0
[pid 5503] ioctl(4, LOOP_CLR_FD) = 0
[pid 5503] close(4) = 0
[pid 5503] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5503] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 139.978361][ T5504] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 139.993938][ T27] audit: type=1800 audit(1676306827.758:219): pid=5503 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5503] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5503] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5503] exit_group(0) = ?
[pid 5503] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5503, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./217", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./217", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./217/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./217/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./217/binderfs") = 0
umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./217/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./217/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./217/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./217/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./217") = 0
mkdir("./218", 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=0x555555db65d0) = 5505
./strace-static-x86_64: Process 5505 attached
[pid 5505] chdir("./218") = 0
[pid 5505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5505] setpgid(0, 0) = 0
[pid 5505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5505] write(3, "1000", 4) = 4
[pid 5505] close(3) = 0
[pid 5505] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5505] memfd_create("syzkaller", 0) = 3
[pid 5505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5505] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5505] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5505] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5505] close(3) = 0
[pid 5505] mkdir("./file0", 0777) = 0
[pid 5505] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5505] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5505] chdir("./file0") = 0
[pid 5505] ioctl(4, LOOP_CLR_FD) = 0
[pid 5505] close(4) = 0
[pid 5505] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5505] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 140.285114][ T5505] loop0: detected capacity change from 0 to 4096
[ 140.301389][ T5505] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 140.309524][ T5505] NILFS (loop0): trying rollback from an earlier position
[ 140.322942][ T5505] NILFS (loop0): recovery complete
[ 140.328714][ T5506] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 140.348036][ T27] audit: type=1800 audit(1676306828.108:220): pid=5505 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5505] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5505] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5505] exit_group(0) = ?
[pid 5505] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5505, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./218", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./218", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./218/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./218/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./218/binderfs") = 0
umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./218/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./218/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./218/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./218/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./218") = 0
mkdir("./219", 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=0x555555db65d0) = 5507
./strace-static-x86_64: Process 5507 attached
[pid 5507] chdir("./219") = 0
[pid 5507] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5507] setpgid(0, 0) = 0
[pid 5507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5507] write(3, "1000", 4) = 4
[pid 5507] close(3) = 0
[pid 5507] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5507] memfd_create("syzkaller", 0) = 3
[pid 5507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5507] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5507] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5507] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5507] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5507] close(3) = 0
[pid 5507] mkdir("./file0", 0777) = 0
[ 140.641145][ T5507] loop0: detected capacity change from 0 to 4096
[ 140.658468][ T5507] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 140.666562][ T5507] NILFS (loop0): trying rollback from an earlier position
[ 140.679513][ T5507] NILFS (loop0): recovery complete
[pid 5507] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5507] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5507] chdir("./file0") = 0
[pid 5507] ioctl(4, LOOP_CLR_FD) = 0
[pid 5507] close(4) = 0
[pid 5507] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5507] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 140.686063][ T5508] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 140.706237][ T27] audit: type=1800 audit(1676306828.458:221): pid=5507 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5507] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5507] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5507] exit_group(0) = ?
[pid 5507] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5507, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./219", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./219", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./219/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./219/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./219/binderfs") = 0
umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./219/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./219/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./219/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./219/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./219") = 0
mkdir("./220", 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=0x555555db65d0) = 5509
./strace-static-x86_64: Process 5509 attached
[pid 5509] chdir("./220") = 0
[pid 5509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5509] setpgid(0, 0) = 0
[pid 5509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5509] write(3, "1000", 4) = 4
[pid 5509] close(3) = 0
[pid 5509] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5509] memfd_create("syzkaller", 0) = 3
[pid 5509] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5509] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5509] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5509] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5509] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5509] close(3) = 0
[pid 5509] mkdir("./file0", 0777) = 0
[ 140.977455][ T5509] loop0: detected capacity change from 0 to 4096
[ 140.993117][ T5509] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 141.001161][ T5509] NILFS (loop0): trying rollback from an earlier position
[ 141.016026][ T5509] NILFS (loop0): recovery complete
[pid 5509] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5509] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5509] chdir("./file0") = 0
[pid 5509] ioctl(4, LOOP_CLR_FD) = 0
[pid 5509] close(4) = 0
[ 141.022006][ T5510] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5509] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5509] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 141.050621][ T27] audit: type=1800 audit(1676306828.808:222): pid=5509 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5509] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5509] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5509] exit_group(0) = ?
[pid 5509] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5509, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./220", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./220", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./220/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./220/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./220/binderfs") = 0
umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./220/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./220/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./220/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./220/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./220") = 0
mkdir("./221", 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=0x555555db65d0) = 5511
./strace-static-x86_64: Process 5511 attached
[pid 5511] chdir("./221") = 0
[pid 5511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5511] setpgid(0, 0) = 0
[pid 5511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5511] write(3, "1000", 4) = 4
[pid 5511] close(3) = 0
[pid 5511] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5511] memfd_create("syzkaller", 0) = 3
[pid 5511] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5511] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5511] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5511] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5511] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5511] close(3) = 0
[pid 5511] mkdir("./file0", 0777) = 0
[ 141.321974][ T5511] loop0: detected capacity change from 0 to 4096
[ 141.338221][ T5511] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 141.346551][ T5511] NILFS (loop0): trying rollback from an earlier position
[ 141.359646][ T5511] NILFS (loop0): recovery complete
[pid 5511] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5511] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5511] chdir("./file0") = 0
[pid 5511] ioctl(4, LOOP_CLR_FD) = 0
[pid 5511] close(4) = 0
[pid 5511] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5511] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 141.365361][ T5512] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 141.386247][ T27] audit: type=1800 audit(1676306829.138:223): pid=5511 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5511] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5511] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5511] exit_group(0) = ?
[pid 5511] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5511, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./221", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./221", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./221/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./221/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./221/binderfs") = 0
umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./221/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./221/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./221/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./221/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./221") = 0
mkdir("./222", 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 5513 attached
, child_tidptr=0x555555db65d0) = 5513
[pid 5513] chdir("./222") = 0
[pid 5513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5513] setpgid(0, 0) = 0
[pid 5513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5513] write(3, "1000", 4) = 4
[pid 5513] close(3) = 0
[pid 5513] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5513] memfd_create("syzkaller", 0) = 3
[pid 5513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5513] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5513] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5513] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5513] close(3) = 0
[pid 5513] mkdir("./file0", 0777) = 0
[ 141.670450][ T5513] loop0: detected capacity change from 0 to 4096
[ 141.688987][ T5513] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 141.697072][ T5513] NILFS (loop0): trying rollback from an earlier position
[ 141.710639][ T5513] NILFS (loop0): recovery complete
[pid 5513] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5513] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5513] chdir("./file0") = 0
[pid 5513] ioctl(4, LOOP_CLR_FD) = 0
[pid 5513] close(4) = 0
[pid 5513] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5513] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 141.716571][ T5514] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 141.731499][ T27] audit: type=1800 audit(1676306829.488:224): pid=5513 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5513] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5513] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5513] exit_group(0) = ?
[pid 5513] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5513, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./222", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./222", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./222/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./222/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./222/binderfs") = 0
umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./222/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./222/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./222/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./222/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./222") = 0
mkdir("./223", 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=0x555555db65d0) = 5515
./strace-static-x86_64: Process 5515 attached
[pid 5515] chdir("./223") = 0
[pid 5515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5515] setpgid(0, 0) = 0
[pid 5515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5515] write(3, "1000", 4) = 4
[pid 5515] close(3) = 0
[pid 5515] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5515] memfd_create("syzkaller", 0) = 3
[pid 5515] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5515] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5515] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5515] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5515] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5515] close(3) = 0
[pid 5515] mkdir("./file0", 0777) = 0
[ 142.014348][ T5515] loop0: detected capacity change from 0 to 4096
[ 142.030647][ T5515] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 142.038733][ T5515] NILFS (loop0): trying rollback from an earlier position
[ 142.052133][ T5515] NILFS (loop0): recovery complete
[pid 5515] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5515] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5515] chdir("./file0") = 0
[pid 5515] ioctl(4, LOOP_CLR_FD) = 0
[pid 5515] close(4) = 0
[pid 5515] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5515] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 142.058596][ T5516] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 142.074859][ T27] audit: type=1800 audit(1676306829.838:225): pid=5515 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5515] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5515] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5515] exit_group(0) = ?
[pid 5515] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5515, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./223", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./223", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./223/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./223/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./223/binderfs") = 0
umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./223/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./223/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./223/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./223/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./223") = 0
mkdir("./224", 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=0x555555db65d0) = 5517
./strace-static-x86_64: Process 5517 attached
[pid 5517] chdir("./224") = 0
[pid 5517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5517] setpgid(0, 0) = 0
[pid 5517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5517] write(3, "1000", 4) = 4
[pid 5517] close(3) = 0
[pid 5517] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5517] memfd_create("syzkaller", 0) = 3
[pid 5517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5517] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5517] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5517] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5517] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5517] close(3) = 0
[pid 5517] mkdir("./file0", 0777) = 0
[pid 5517] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5517] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5517] chdir("./file0") = 0
[pid 5517] ioctl(4, LOOP_CLR_FD) = 0
[ 142.362816][ T5517] loop0: detected capacity change from 0 to 4096
[ 142.380122][ T5517] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 142.388194][ T5517] NILFS (loop0): trying rollback from an earlier position
[ 142.401169][ T5517] NILFS (loop0): recovery complete
[pid 5517] close(4) = 0
[pid 5517] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5517] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 142.407159][ T5518] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5517] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5517] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5517] exit_group(0) = ?
[pid 5517] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5517, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./224", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./224", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./224/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./224/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./224/binderfs") = 0
umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./224/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./224/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./224/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./224/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./224") = 0
mkdir("./225", 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=0x555555db65d0) = 5519
./strace-static-x86_64: Process 5519 attached
[pid 5519] chdir("./225") = 0
[pid 5519] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5519] setpgid(0, 0) = 0
[pid 5519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5519] write(3, "1000", 4) = 4
[pid 5519] close(3) = 0
[pid 5519] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5519] memfd_create("syzkaller", 0) = 3
[pid 5519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5519] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5519] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5519] close(3) = 0
[pid 5519] mkdir("./file0", 0777) = 0
[ 142.696620][ T5519] loop0: detected capacity change from 0 to 4096
[ 142.713673][ T5519] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 142.721886][ T5519] NILFS (loop0): trying rollback from an earlier position
[ 142.735732][ T5519] NILFS (loop0): recovery complete
[pid 5519] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5519] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5519] chdir("./file0") = 0
[pid 5519] ioctl(4, LOOP_CLR_FD) = 0
[pid 5519] close(4) = 0
[pid 5519] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5519] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 142.741744][ T5520] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5519] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5519] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5519] exit_group(0) = ?
[pid 5519] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5519, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./225", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./225", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./225/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./225/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./225/binderfs") = 0
umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./225/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./225/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./225/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./225/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./225") = 0
mkdir("./226", 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=0x555555db65d0) = 5521
./strace-static-x86_64: Process 5521 attached
[pid 5521] chdir("./226") = 0
[pid 5521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5521] setpgid(0, 0) = 0
[pid 5521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5521] write(3, "1000", 4) = 4
[pid 5521] close(3) = 0
[pid 5521] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5521] memfd_create("syzkaller", 0) = 3
[pid 5521] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5521] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5521] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5521] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5521] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5521] close(3) = 0
[pid 5521] mkdir("./file0", 0777) = 0
[pid 5521] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5521] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5521] chdir("./file0") = 0
[pid 5521] ioctl(4, LOOP_CLR_FD) = 0
[pid 5521] close(4) = 0
[ 143.025318][ T5521] loop0: detected capacity change from 0 to 4096
[ 143.043097][ T5521] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 143.051277][ T5521] NILFS (loop0): trying rollback from an earlier position
[ 143.065279][ T5521] NILFS (loop0): recovery complete
[pid 5521] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5521] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 143.071458][ T5522] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5521] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5521] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5521] exit_group(0) = ?
[pid 5521] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5521, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./226", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./226", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./226/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./226/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./226/binderfs") = 0
umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./226/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./226/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./226/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./226/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./226") = 0
mkdir("./227", 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=0x555555db65d0) = 5523
./strace-static-x86_64: Process 5523 attached
[pid 5523] chdir("./227") = 0
[pid 5523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5523] setpgid(0, 0) = 0
[pid 5523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5523] write(3, "1000", 4) = 4
[pid 5523] close(3) = 0
[pid 5523] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5523] memfd_create("syzkaller", 0) = 3
[pid 5523] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5523] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5523] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5523] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5523] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5523] close(3) = 0
[pid 5523] mkdir("./file0", 0777) = 0
[ 143.382397][ T5523] loop0: detected capacity change from 0 to 4096
[ 143.399488][ T5523] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 143.407578][ T5523] NILFS (loop0): trying rollback from an earlier position
[ 143.422056][ T5523] NILFS (loop0): recovery complete
[pid 5523] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5523] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5523] chdir("./file0") = 0
[pid 5523] ioctl(4, LOOP_CLR_FD) = 0
[pid 5523] close(4) = 0
[pid 5523] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5523] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 143.428557][ T5524] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5523] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5523] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5523] exit_group(0) = ?
[pid 5523] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5523, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./227", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./227", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./227/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./227/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./227/binderfs") = 0
umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./227/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./227/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./227/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./227/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./227") = 0
mkdir("./228", 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=0x555555db65d0) = 5525
./strace-static-x86_64: Process 5525 attached
[pid 5525] chdir("./228") = 0
[pid 5525] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5525] setpgid(0, 0) = 0
[pid 5525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5525] write(3, "1000", 4) = 4
[pid 5525] close(3) = 0
[pid 5525] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5525] memfd_create("syzkaller", 0) = 3
[pid 5525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5525] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5525] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5525] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5525] close(3) = 0
[pid 5525] mkdir("./file0", 0777) = 0
[ 143.728691][ T5525] loop0: detected capacity change from 0 to 4096
[ 143.744409][ T5525] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 143.752625][ T5525] NILFS (loop0): trying rollback from an earlier position
[ 143.766794][ T5525] NILFS (loop0): recovery complete
[pid 5525] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5525] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5525] chdir("./file0") = 0
[pid 5525] ioctl(4, LOOP_CLR_FD) = 0
[pid 5525] close(4) = 0
[pid 5525] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5525] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 143.773108][ T5526] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5525] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5525] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5525] exit_group(0) = ?
[pid 5525] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5525, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./228", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./228", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./228/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./228/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./228/binderfs") = 0
umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./228/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./228/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./228/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./228/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./228") = 0
mkdir("./229", 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=0x555555db65d0) = 5527
./strace-static-x86_64: Process 5527 attached
[pid 5527] chdir("./229") = 0
[pid 5527] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5527] setpgid(0, 0) = 0
[pid 5527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5527] write(3, "1000", 4) = 4
[pid 5527] close(3) = 0
[pid 5527] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5527] memfd_create("syzkaller", 0) = 3
[pid 5527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5527] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5527] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5527] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5527] close(3) = 0
[pid 5527] mkdir("./file0", 0777) = 0
[pid 5527] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5527] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 144.056902][ T5527] loop0: detected capacity change from 0 to 4096
[ 144.072308][ T5527] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 144.080415][ T5527] NILFS (loop0): trying rollback from an earlier position
[ 144.097033][ T5527] NILFS (loop0): recovery complete
[pid 5527] chdir("./file0") = 0
[pid 5527] ioctl(4, LOOP_CLR_FD) = 0
[pid 5527] close(4) = 0
[pid 5527] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5527] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 144.103022][ T5528] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 144.113842][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 144.113854][ T27] audit: type=1800 audit(1676306831.878:231): pid=5527 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5527] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5527] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5527] exit_group(0) = ?
[pid 5527] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5527, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./229", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./229", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./229/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./229/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./229/binderfs") = 0
umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./229/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./229/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./229/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./229/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./229") = 0
mkdir("./230", 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=0x555555db65d0) = 5529
./strace-static-x86_64: Process 5529 attached
[pid 5529] chdir("./230") = 0
[pid 5529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5529] setpgid(0, 0) = 0
[pid 5529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5529] write(3, "1000", 4) = 4
[pid 5529] close(3) = 0
[pid 5529] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5529] memfd_create("syzkaller", 0) = 3
[pid 5529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5529] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5529] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5529] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5529] close(3) = 0
[pid 5529] mkdir("./file0", 0777) = 0
[pid 5529] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5529] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 144.407149][ T5529] loop0: detected capacity change from 0 to 4096
[ 144.422593][ T5529] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 144.430718][ T5529] NILFS (loop0): trying rollback from an earlier position
[ 144.443845][ T5529] NILFS (loop0): recovery complete
[pid 5529] chdir("./file0") = 0
[pid 5529] ioctl(4, LOOP_CLR_FD) = 0
[pid 5529] close(4) = 0
[pid 5529] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5529] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 144.450685][ T5530] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 144.463814][ T27] audit: type=1800 audit(1676306832.228:232): pid=5529 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5529] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5529] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5529] exit_group(0) = ?
[pid 5529] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5529, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./230", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./230", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./230/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./230/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./230/binderfs") = 0
umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./230/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./230/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./230/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./230/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./230") = 0
mkdir("./231", 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 5531 attached
, child_tidptr=0x555555db65d0) = 5531
[pid 5531] chdir("./231") = 0
[pid 5531] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5531] setpgid(0, 0) = 0
[pid 5531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5531] write(3, "1000", 4) = 4
[pid 5531] close(3) = 0
[pid 5531] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5531] memfd_create("syzkaller", 0) = 3
[pid 5531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5531] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5531] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5531] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5531] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5531] close(3) = 0
[pid 5531] mkdir("./file0", 0777) = 0
[ 144.777555][ T5531] loop0: detected capacity change from 0 to 4096
[ 144.795933][ T5531] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 144.804325][ T5531] NILFS (loop0): trying rollback from an earlier position
[ 144.818217][ T5531] NILFS (loop0): recovery complete
[pid 5531] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5531] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5531] chdir("./file0") = 0
[pid 5531] ioctl(4, LOOP_CLR_FD) = 0
[pid 5531] close(4) = 0
[pid 5531] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5531] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 144.824140][ T5532] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 144.841595][ T27] audit: type=1800 audit(1676306832.598:233): pid=5531 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5531] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5531] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5531] exit_group(0) = ?
[pid 5531] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5531, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./231", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./231", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./231/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./231/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./231/binderfs") = 0
umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./231/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./231/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./231/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./231/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./231") = 0
mkdir("./232", 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 5533 attached
<unfinished ...>
[pid 5533] chdir("./232") = 0
[pid 5533] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5533] setpgid(0, 0 <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5533
[pid 5533] <... setpgid resumed>) = 0
[pid 5533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5533] write(3, "1000", 4) = 4
[pid 5533] close(3) = 0
[pid 5533] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5533] memfd_create("syzkaller", 0) = 3
[pid 5533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5533] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5533] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5533] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5533] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5533] close(3) = 0
[pid 5533] mkdir("./file0", 0777) = 0
[ 145.148880][ T5533] loop0: detected capacity change from 0 to 4096
[ 145.167072][ T5533] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 145.175089][ T5533] NILFS (loop0): trying rollback from an earlier position
[ 145.189435][ T5533] NILFS (loop0): recovery complete
[pid 5533] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5533] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5533] chdir("./file0") = 0
[pid 5533] ioctl(4, LOOP_CLR_FD) = 0
[pid 5533] close(4) = 0
[pid 5533] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5533] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 145.195439][ T5534] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 145.210544][ T27] audit: type=1800 audit(1676306832.968:234): pid=5533 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5533] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5533] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5533] exit_group(0) = ?
[pid 5533] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5533, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./232", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./232", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./232/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./232/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./232/binderfs") = 0
umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./232/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./232/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./232/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./232/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./232") = 0
mkdir("./233", 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=0x555555db65d0) = 5535
./strace-static-x86_64: Process 5535 attached
[pid 5535] chdir("./233") = 0
[pid 5535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5535] setpgid(0, 0) = 0
[pid 5535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5535] write(3, "1000", 4) = 4
[pid 5535] close(3) = 0
[pid 5535] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5535] memfd_create("syzkaller", 0) = 3
[pid 5535] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5535] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5535] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5535] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5535] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5535] close(3) = 0
[pid 5535] mkdir("./file0", 0777) = 0
[pid 5535] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5535] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5535] chdir("./file0") = 0
[pid 5535] ioctl(4, LOOP_CLR_FD) = 0
[ 145.509294][ T5535] loop0: detected capacity change from 0 to 4096
[ 145.525063][ T5535] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 145.533264][ T5535] NILFS (loop0): trying rollback from an earlier position
[ 145.547656][ T5535] NILFS (loop0): recovery complete
[pid 5535] close(4) = 0
[pid 5535] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5535] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 145.554485][ T5536] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 145.567102][ T27] audit: type=1800 audit(1676306833.328:235): pid=5535 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5535] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5535] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5535] exit_group(0) = ?
[pid 5535] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5535, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./233", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./233", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./233/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./233/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./233/binderfs") = 0
umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./233/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./233/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./233/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./233/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./233") = 0
mkdir("./234", 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=0x555555db65d0) = 5537
./strace-static-x86_64: Process 5537 attached
[pid 5537] chdir("./234") = 0
[pid 5537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5537] setpgid(0, 0) = 0
[pid 5537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5537] write(3, "1000", 4) = 4
[pid 5537] close(3) = 0
[pid 5537] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5537] memfd_create("syzkaller", 0) = 3
[pid 5537] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5537] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5537] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5537] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5537] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5537] close(3) = 0
[pid 5537] mkdir("./file0", 0777) = 0
[ 145.863739][ T5537] loop0: detected capacity change from 0 to 4096
[ 145.879490][ T5537] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 145.887550][ T5537] NILFS (loop0): trying rollback from an earlier position
[ 145.903514][ T5537] NILFS (loop0): recovery complete
[pid 5537] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5537] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5537] chdir("./file0") = 0
[pid 5537] ioctl(4, LOOP_CLR_FD) = 0
[pid 5537] close(4) = 0
[pid 5537] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5537] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 145.910304][ T5538] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 145.924880][ T27] audit: type=1800 audit(1676306833.688:236): pid=5537 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5537] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5537] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5537] exit_group(0) = ?
[pid 5537] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5537, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./234", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./234", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./234/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./234/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./234/binderfs") = 0
umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./234/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./234/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./234/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./234/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./234") = 0
mkdir("./235", 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=0x555555db65d0) = 5539
./strace-static-x86_64: Process 5539 attached
[pid 5539] chdir("./235") = 0
[pid 5539] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5539] setpgid(0, 0) = 0
[pid 5539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5539] write(3, "1000", 4) = 4
[pid 5539] close(3) = 0
[pid 5539] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5539] memfd_create("syzkaller", 0) = 3
[pid 5539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5539] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5539] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5539] close(3) = 0
[pid 5539] mkdir("./file0", 0777) = 0
[ 146.205167][ T5539] loop0: detected capacity change from 0 to 4096
[ 146.221615][ T5539] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 146.229691][ T5539] NILFS (loop0): trying rollback from an earlier position
[ 146.243372][ T5539] NILFS (loop0): recovery complete
[pid 5539] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5539] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5539] chdir("./file0") = 0
[pid 5539] ioctl(4, LOOP_CLR_FD) = 0
[pid 5539] close(4) = 0
[pid 5539] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5539] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 146.249482][ T5540] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 146.269134][ T27] audit: type=1800 audit(1676306834.028:237): pid=5539 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5539] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5539] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5539] exit_group(0) = ?
[pid 5539] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5539, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./235", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./235", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./235/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./235/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./235/binderfs") = 0
umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./235/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./235/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./235/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./235/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./235") = 0
mkdir("./236", 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=0x555555db65d0) = 5541
./strace-static-x86_64: Process 5541 attached
[pid 5541] chdir("./236") = 0
[pid 5541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5541] setpgid(0, 0) = 0
[pid 5541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5541] write(3, "1000", 4) = 4
[pid 5541] close(3) = 0
[pid 5541] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5541] memfd_create("syzkaller", 0) = 3
[pid 5541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5541] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5541] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5541] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5541] close(3) = 0
[pid 5541] mkdir("./file0", 0777) = 0
[ 146.554309][ T5541] loop0: detected capacity change from 0 to 4096
[ 146.568675][ T5541] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 146.576724][ T5541] NILFS (loop0): trying rollback from an earlier position
[ 146.590355][ T5541] NILFS (loop0): recovery complete
[pid 5541] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5541] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5541] chdir("./file0") = 0
[pid 5541] ioctl(4, LOOP_CLR_FD) = 0
[pid 5541] close(4) = 0
[pid 5541] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5541] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 146.596444][ T5542] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 146.612405][ T27] audit: type=1800 audit(1676306834.368:238): pid=5541 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5541] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5541] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5541] exit_group(0) = ?
[pid 5541] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5541, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./236", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./236", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./236/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./236/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./236/binderfs") = 0
umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./236/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./236/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./236/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./236/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./236") = 0
mkdir("./237", 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=0x555555db65d0) = 5543
./strace-static-x86_64: Process 5543 attached
[pid 5543] chdir("./237") = 0
[pid 5543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5543] setpgid(0, 0) = 0
[pid 5543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5543] write(3, "1000", 4) = 4
[pid 5543] close(3) = 0
[pid 5543] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5543] memfd_create("syzkaller", 0) = 3
[pid 5543] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5543] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5543] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5543] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5543] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5543] close(3) = 0
[pid 5543] mkdir("./file0", 0777) = 0
[ 146.893213][ T5543] loop0: detected capacity change from 0 to 4096
[ 146.909652][ T5543] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 146.917841][ T5543] NILFS (loop0): trying rollback from an earlier position
[ 146.931629][ T5543] NILFS (loop0): recovery complete
[pid 5543] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5543] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5543] chdir("./file0") = 0
[pid 5543] ioctl(4, LOOP_CLR_FD) = 0
[pid 5543] close(4) = 0
[pid 5543] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5543] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 146.937435][ T5544] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 146.949633][ T27] audit: type=1800 audit(1676306834.708:239): pid=5543 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5543] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5543] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5543] exit_group(0) = ?
[pid 5543] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5543, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./237", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./237", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./237/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./237/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./237/binderfs") = 0
umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./237/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./237/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./237/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./237/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./237") = 0
mkdir("./238", 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=0x555555db65d0) = 5545
./strace-static-x86_64: Process 5545 attached
[pid 5545] chdir("./238") = 0
[pid 5545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5545] setpgid(0, 0) = 0
[pid 5545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5545] write(3, "1000", 4) = 4
[pid 5545] close(3) = 0
[pid 5545] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5545] memfd_create("syzkaller", 0) = 3
[pid 5545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5545] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5545] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5545] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5545] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5545] close(3) = 0
[pid 5545] mkdir("./file0", 0777) = 0
[ 147.241388][ T5545] loop0: detected capacity change from 0 to 4096
[ 147.258476][ T5545] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 147.266588][ T5545] NILFS (loop0): trying rollback from an earlier position
[ 147.280215][ T5545] NILFS (loop0): recovery complete
[pid 5545] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5545] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5545] chdir("./file0") = 0
[pid 5545] ioctl(4, LOOP_CLR_FD) = 0
[pid 5545] close(4) = 0
[pid 5545] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5545] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 147.285972][ T5546] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 147.309179][ T27] audit: type=1800 audit(1676306835.068:240): pid=5545 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5545] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5545] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5545] exit_group(0) = ?
[pid 5545] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5545, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./238", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./238", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./238/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./238/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./238/binderfs") = 0
umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./238/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./238/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./238/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./238/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./238") = 0
mkdir("./239", 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=0x555555db65d0) = 5547
./strace-static-x86_64: Process 5547 attached
[pid 5547] chdir("./239") = 0
[pid 5547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5547] setpgid(0, 0) = 0
[pid 5547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5547] write(3, "1000", 4) = 4
[pid 5547] close(3) = 0
[pid 5547] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5547] memfd_create("syzkaller", 0) = 3
[pid 5547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5547] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5547] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5547] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5547] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5547] close(3) = 0
[pid 5547] mkdir("./file0", 0777) = 0
[ 147.589975][ T5547] loop0: detected capacity change from 0 to 4096
[ 147.604627][ T5547] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 147.612933][ T5547] NILFS (loop0): trying rollback from an earlier position
[ 147.626631][ T5547] NILFS (loop0): recovery complete
[pid 5547] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5547] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5547] chdir("./file0") = 0
[pid 5547] ioctl(4, LOOP_CLR_FD) = 0
[pid 5547] close(4) = 0
[pid 5547] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5547] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 147.632824][ T5548] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5547] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5547] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5547] exit_group(0) = ?
[pid 5547] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5547, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./239", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./239", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./239/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./239/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./239/binderfs") = 0
umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./239/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./239/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./239/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./239/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./239") = 0
mkdir("./240", 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=0x555555db65d0) = 5549
./strace-static-x86_64: Process 5549 attached
[pid 5549] chdir("./240") = 0
[pid 5549] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5549] setpgid(0, 0) = 0
[pid 5549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5549] write(3, "1000", 4) = 4
[pid 5549] close(3) = 0
[pid 5549] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5549] memfd_create("syzkaller", 0) = 3
[pid 5549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5549] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5549] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5549] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5549] close(3) = 0
[pid 5549] mkdir("./file0", 0777) = 0
[ 147.921770][ T5549] loop0: detected capacity change from 0 to 4096
[ 147.938657][ T5549] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 147.946707][ T5549] NILFS (loop0): trying rollback from an earlier position
[ 147.960467][ T5549] NILFS (loop0): recovery complete
[pid 5549] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5549] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5549] chdir("./file0") = 0
[pid 5549] ioctl(4, LOOP_CLR_FD) = 0
[pid 5549] close(4) = 0
[pid 5549] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5549] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 147.966495][ T5550] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5549] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5549] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5549] exit_group(0) = ?
[pid 5549] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5549, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./240", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./240", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./240/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./240/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./240/binderfs") = 0
umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./240/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./240/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./240/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./240/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./240") = 0
mkdir("./241", 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=0x555555db65d0) = 5551
./strace-static-x86_64: Process 5551 attached
[pid 5551] chdir("./241") = 0
[pid 5551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5551] setpgid(0, 0) = 0
[pid 5551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5551] write(3, "1000", 4) = 4
[pid 5551] close(3) = 0
[pid 5551] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5551] memfd_create("syzkaller", 0) = 3
[pid 5551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5551] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5551] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5551] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5551] close(3) = 0
[pid 5551] mkdir("./file0", 0777) = 0
[ 148.251865][ T5551] loop0: detected capacity change from 0 to 4096
[ 148.269706][ T5551] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 148.277836][ T5551] NILFS (loop0): trying rollback from an earlier position
[ 148.291347][ T5551] NILFS (loop0): recovery complete
[pid 5551] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5551] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5551] chdir("./file0") = 0
[pid 5551] ioctl(4, LOOP_CLR_FD) = 0
[pid 5551] close(4) = 0
[pid 5551] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5551] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 148.297545][ T5552] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5551] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5551] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5551] exit_group(0) = ?
[pid 5551] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5551, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./241", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./241", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./241/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./241/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./241/binderfs") = 0
umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./241/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./241/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./241/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./241/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./241") = 0
mkdir("./242", 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=0x555555db65d0) = 5553
./strace-static-x86_64: Process 5553 attached
[pid 5553] chdir("./242") = 0
[pid 5553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5553] setpgid(0, 0) = 0
[pid 5553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5553] write(3, "1000", 4) = 4
[pid 5553] close(3) = 0
[pid 5553] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5553] memfd_create("syzkaller", 0) = 3
[pid 5553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5553] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5553] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5553] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5553] close(3) = 0
[pid 5553] mkdir("./file0", 0777) = 0
[ 148.593554][ T5553] loop0: detected capacity change from 0 to 4096
[ 148.609779][ T5553] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 148.617934][ T5553] NILFS (loop0): trying rollback from an earlier position
[ 148.632450][ T5553] NILFS (loop0): recovery complete
[pid 5553] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5553] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5553] chdir("./file0") = 0
[pid 5553] ioctl(4, LOOP_CLR_FD) = 0
[pid 5553] close(4) = 0
[pid 5553] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5553] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 148.638481][ T5554] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5553] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5553] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5553] exit_group(0) = ?
[pid 5553] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5553, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./242", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./242", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./242/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./242/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./242/binderfs") = 0
umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./242/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./242/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./242/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./242/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./242") = 0
mkdir("./243", 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=0x555555db65d0) = 5555
./strace-static-x86_64: Process 5555 attached
[pid 5555] chdir("./243") = 0
[pid 5555] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5555] setpgid(0, 0) = 0
[pid 5555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5555] write(3, "1000", 4) = 4
[pid 5555] close(3) = 0
[pid 5555] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5555] memfd_create("syzkaller", 0) = 3
[pid 5555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5555] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5555] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5555] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5555] close(3) = 0
[pid 5555] mkdir("./file0", 0777) = 0
[ 148.968016][ T5555] loop0: detected capacity change from 0 to 4096
[ 148.993268][ T5555] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 149.001337][ T5555] NILFS (loop0): trying rollback from an earlier position
[pid 5555] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5555] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5555] chdir("./file0") = 0
[pid 5555] ioctl(4, LOOP_CLR_FD) = 0
[pid 5555] close(4) = 0
[pid 5555] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5555] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 149.015750][ T5555] NILFS (loop0): recovery complete
[ 149.021859][ T5556] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5555] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5555] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5555] exit_group(0) = ?
[pid 5555] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5555, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./243", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./243", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./243/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./243/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./243/binderfs") = 0
umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./243/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./243/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./243/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./243/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./243") = 0
mkdir("./244", 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=0x555555db65d0) = 5557
./strace-static-x86_64: Process 5557 attached
[pid 5557] chdir("./244") = 0
[pid 5557] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5557] setpgid(0, 0) = 0
[pid 5557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5557] write(3, "1000", 4) = 4
[pid 5557] close(3) = 0
[pid 5557] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5557] memfd_create("syzkaller", 0) = 3
[pid 5557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5557] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5557] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5557] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5557] close(3) = 0
[pid 5557] mkdir("./file0", 0777) = 0
[ 149.325470][ T5557] loop0: detected capacity change from 0 to 4096
[ 149.340474][ T5557] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 149.348527][ T5557] NILFS (loop0): trying rollback from an earlier position
[ 149.361572][ T5557] NILFS (loop0): recovery complete
[pid 5557] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5557] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5557] chdir("./file0") = 0
[pid 5557] ioctl(4, LOOP_CLR_FD) = 0
[pid 5557] close(4) = 0
[pid 5557] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5557] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 149.367932][ T5558] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 149.380083][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 149.380094][ T27] audit: type=1800 audit(1676306837.148:246): pid=5557 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5557] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5557] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5557] exit_group(0) = ?
[pid 5557] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5557, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./244", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./244", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./244/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./244/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./244/binderfs") = 0
umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./244/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./244/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./244/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./244/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./244") = 0
mkdir("./245", 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 5559 attached
, child_tidptr=0x555555db65d0) = 5559
[pid 5559] chdir("./245") = 0
[pid 5559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5559] setpgid(0, 0) = 0
[pid 5559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5559] write(3, "1000", 4) = 4
[pid 5559] close(3) = 0
[pid 5559] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5559] memfd_create("syzkaller", 0) = 3
[pid 5559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5559] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5559] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5559] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5559] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5559] close(3) = 0
[pid 5559] mkdir("./file0", 0777) = 0
[ 149.685608][ T5559] loop0: detected capacity change from 0 to 4096
[ 149.710523][ T5559] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 149.718555][ T5559] NILFS (loop0): trying rollback from an earlier position
[pid 5559] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5559] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5559] chdir("./file0") = 0
[pid 5559] ioctl(4, LOOP_CLR_FD) = 0
[pid 5559] close(4) = 0
[pid 5559] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5559] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 149.733065][ T5559] NILFS (loop0): recovery complete
[ 149.738929][ T5560] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 149.756223][ T27] audit: type=1800 audit(1676306837.508:247): pid=5559 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5559] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5559] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5559] exit_group(0) = ?
[pid 5559] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5559, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./245", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./245", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./245/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./245/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./245/binderfs") = 0
umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./245/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./245/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./245/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./245/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./245") = 0
mkdir("./246", 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=0x555555db65d0) = 5561
./strace-static-x86_64: Process 5561 attached
[pid 5561] chdir("./246") = 0
[pid 5561] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5561] setpgid(0, 0) = 0
[pid 5561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5561] write(3, "1000", 4) = 4
[pid 5561] close(3) = 0
[pid 5561] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5561] memfd_create("syzkaller", 0) = 3
[pid 5561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5561] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5561] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5561] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5561] close(3) = 0
[pid 5561] mkdir("./file0", 0777) = 0
[pid 5561] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5561] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5561] chdir("./file0") = 0
[pid 5561] ioctl(4, LOOP_CLR_FD) = 0
[pid 5561] close(4) = 0
[ 150.020189][ T5561] loop0: detected capacity change from 0 to 4096
[ 150.037336][ T5561] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 150.045345][ T5561] NILFS (loop0): trying rollback from an earlier position
[ 150.060020][ T5561] NILFS (loop0): recovery complete
[pid 5561] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5561] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 150.066468][ T5562] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 150.086326][ T27] audit: type=1800 audit(1676306837.828:248): pid=5561 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5561] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5561] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5561] exit_group(0) = ?
[pid 5561] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5561, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./246", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./246", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./246/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./246/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./246/binderfs") = 0
umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./246/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./246/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./246/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./246/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./246") = 0
mkdir("./247", 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=0x555555db65d0) = 5563
./strace-static-x86_64: Process 5563 attached
[pid 5563] chdir("./247") = 0
[pid 5563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5563] setpgid(0, 0) = 0
[pid 5563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5563] write(3, "1000", 4) = 4
[pid 5563] close(3) = 0
[pid 5563] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5563] memfd_create("syzkaller", 0) = 3
[pid 5563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5563] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5563] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5563] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5563] close(3) = 0
[pid 5563] mkdir("./file0", 0777) = 0
[pid 5563] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5563] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5563] chdir("./file0") = 0
[pid 5563] ioctl(4, LOOP_CLR_FD) = 0
[pid 5563] close(4) = 0
[ 150.367527][ T5563] loop0: detected capacity change from 0 to 4096
[ 150.382941][ T5563] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 150.391072][ T5563] NILFS (loop0): trying rollback from an earlier position
[ 150.405377][ T5563] NILFS (loop0): recovery complete
[pid 5563] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5563] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 150.411355][ T5564] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 150.426182][ T27] audit: type=1800 audit(1676306838.178:249): pid=5563 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5563] sendfile(4, 5, NULL, 2147538701) = 65536
[pid 5563] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5563] exit_group(0) = ?
[pid 5563] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5563, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./247", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./247", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./247/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./247/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./247/binderfs") = 0
umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./247/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./247/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./247/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./247/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./247") = 0
[ 150.465422][ T5564] NILFS (loop0): nilfs_direct_assign (ino=6): invalid key: 130
[ 150.473322][ T5564] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=6)
[ 150.484304][ T5564] Remounting filesystem read-only
mkdir("./248", 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=0x555555db65d0) = 5565
./strace-static-x86_64: Process 5565 attached
[pid 5565] chdir("./248") = 0
[pid 5565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5565] setpgid(0, 0) = 0
[pid 5565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5565] write(3, "1000", 4) = 4
[pid 5565] close(3) = 0
[pid 5565] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5565] memfd_create("syzkaller", 0) = 3
[pid 5565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5565] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5565] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5565] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5565] close(3) = 0
[pid 5565] mkdir("./file0", 0777) = 0
[pid 5565] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5565] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5565] chdir("./file0") = 0
[pid 5565] ioctl(4, LOOP_CLR_FD) = 0
[pid 5565] close(4) = 0
[pid 5565] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5565] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 150.570654][ T5565] loop0: detected capacity change from 0 to 4096
[ 150.585227][ T5565] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 150.593266][ T5565] NILFS (loop0): trying rollback from an earlier position
[ 150.606424][ T5565] NILFS (loop0): recovery complete
[ 150.612662][ T5566] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 150.626179][ T27] audit: type=1800 audit(1676306838.378:250): pid=5565 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5565] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5565] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5565] exit_group(0) = ?
[pid 5565] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5565, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./248", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./248", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./248/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./248/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./248/binderfs") = 0
umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./248/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./248/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./248/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./248/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./248") = 0
mkdir("./249", 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=0x555555db65d0) = 5567
./strace-static-x86_64: Process 5567 attached
[pid 5567] chdir("./249") = 0
[pid 5567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5567] setpgid(0, 0) = 0
[pid 5567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5567] write(3, "1000", 4) = 4
[pid 5567] close(3) = 0
[pid 5567] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5567] memfd_create("syzkaller", 0) = 3
[pid 5567] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5567] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5567] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5567] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5567] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5567] close(3) = 0
[pid 5567] mkdir("./file0", 0777) = 0
[pid 5567] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5567] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 150.918013][ T5567] loop0: detected capacity change from 0 to 4096
[ 150.933658][ T5567] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 150.941732][ T5567] NILFS (loop0): trying rollback from an earlier position
[ 150.958491][ T5567] NILFS (loop0): recovery complete
[pid 5567] chdir("./file0") = 0
[pid 5567] ioctl(4, LOOP_CLR_FD) = 0
[pid 5567] close(4) = 0
[pid 5567] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5567] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 150.964665][ T5568] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 150.988423][ T27] audit: type=1800 audit(1676306838.728:251): pid=5567 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5567] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5567] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5567] exit_group(0) = ?
[pid 5567] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5567, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./249", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./249", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./249/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./249/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./249/binderfs") = 0
umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./249/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./249/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./249/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./249/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./249") = 0
mkdir("./250", 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=0x555555db65d0) = 5569
./strace-static-x86_64: Process 5569 attached
[pid 5569] chdir("./250") = 0
[pid 5569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5569] setpgid(0, 0) = 0
[pid 5569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5569] write(3, "1000", 4) = 4
[pid 5569] close(3) = 0
[pid 5569] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5569] memfd_create("syzkaller", 0) = 3
[pid 5569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5569] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5569] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5569] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5569] close(3) = 0
[pid 5569] mkdir("./file0", 0777) = 0
[ 151.274305][ T5569] loop0: detected capacity change from 0 to 4096
[ 151.291154][ T5569] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 151.299251][ T5569] NILFS (loop0): trying rollback from an earlier position
[ 151.315729][ T5569] NILFS (loop0): recovery complete
[pid 5569] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5569] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5569] chdir("./file0") = 0
[pid 5569] ioctl(4, LOOP_CLR_FD) = 0
[pid 5569] close(4) = 0
[pid 5569] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5569] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 151.321617][ T5570] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 151.336243][ T27] audit: type=1800 audit(1676306839.088:252): pid=5569 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5569] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5569] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5569] exit_group(0) = ?
[pid 5569] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5569, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./250", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./250", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./250/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./250/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./250/binderfs") = 0
umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./250/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./250/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./250/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./250/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./250") = 0
mkdir("./251", 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=0x555555db65d0) = 5571
./strace-static-x86_64: Process 5571 attached
[pid 5571] chdir("./251") = 0
[pid 5571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5571] setpgid(0, 0) = 0
[pid 5571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5571] write(3, "1000", 4) = 4
[pid 5571] close(3) = 0
[pid 5571] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5571] memfd_create("syzkaller", 0) = 3
[pid 5571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5571] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5571] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5571] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5571] close(3) = 0
[pid 5571] mkdir("./file0", 0777) = 0
[ 151.618997][ T5571] loop0: detected capacity change from 0 to 4096
[ 151.636607][ T5571] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 151.644616][ T5571] NILFS (loop0): trying rollback from an earlier position
[ 151.659342][ T5571] NILFS (loop0): recovery complete
[pid 5571] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5571] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5571] chdir("./file0") = 0
[pid 5571] ioctl(4, LOOP_CLR_FD) = 0
[pid 5571] close(4) = 0
[pid 5571] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5571] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 151.665312][ T5572] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 151.694788][ T27] audit: type=1800 audit(1676306839.448:253): pid=5571 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5571] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5571] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5571] exit_group(0) = ?
[pid 5571] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5571, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./251", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./251", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./251/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./251/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./251/binderfs") = 0
umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./251/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./251/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./251/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./251/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./251") = 0
mkdir("./252", 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=0x555555db65d0) = 5573
./strace-static-x86_64: Process 5573 attached
[pid 5573] chdir("./252") = 0
[pid 5573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5573] setpgid(0, 0) = 0
[pid 5573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5573] write(3, "1000", 4) = 4
[pid 5573] close(3) = 0
[pid 5573] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5573] memfd_create("syzkaller", 0) = 3
[pid 5573] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5573] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5573] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5573] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5573] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5573] close(3) = 0
[pid 5573] mkdir("./file0", 0777) = 0
[ 151.977631][ T5573] loop0: detected capacity change from 0 to 4096
[ 151.994457][ T5573] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 152.002573][ T5573] NILFS (loop0): trying rollback from an earlier position
[ 152.016116][ T5573] NILFS (loop0): recovery complete
[pid 5573] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5573] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5573] chdir("./file0") = 0
[pid 5573] ioctl(4, LOOP_CLR_FD) = 0
[pid 5573] close(4) = 0
[pid 5573] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5573] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 152.022025][ T5574] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 152.034310][ T27] audit: type=1800 audit(1676306839.788:254): pid=5573 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5573] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5573] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5573] exit_group(0) = ?
[pid 5573] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5573, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./252", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./252", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./252/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./252/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./252/binderfs") = 0
umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./252/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./252/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./252/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./252/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./252") = 0
mkdir("./253", 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=0x555555db65d0) = 5575
./strace-static-x86_64: Process 5575 attached
[pid 5575] chdir("./253") = 0
[pid 5575] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5575] setpgid(0, 0) = 0
[pid 5575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5575] write(3, "1000", 4) = 4
[pid 5575] close(3) = 0
[pid 5575] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5575] memfd_create("syzkaller", 0) = 3
[pid 5575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5575] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5575] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5575] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5575] close(3) = 0
[pid 5575] mkdir("./file0", 0777) = 0
[pid 5575] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5575] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5575] chdir("./file0") = 0
[pid 5575] ioctl(4, LOOP_CLR_FD) = 0
[pid 5575] close(4) = 0
[ 152.311016][ T5575] loop0: detected capacity change from 0 to 4096
[ 152.326954][ T5575] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 152.334986][ T5575] NILFS (loop0): trying rollback from an earlier position
[ 152.348735][ T5575] NILFS (loop0): recovery complete
[pid 5575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5575] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 152.354935][ T5576] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 152.375554][ T27] audit: type=1800 audit(1676306840.118:255): pid=5575 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5575] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5575] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5575] exit_group(0) = ?
[pid 5575] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5575, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./253", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./253", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./253/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./253/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./253/binderfs") = 0
umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./253/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./253/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./253/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./253/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./253") = 0
mkdir("./254", 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=0x555555db65d0) = 5577
./strace-static-x86_64: Process 5577 attached
[pid 5577] chdir("./254") = 0
[pid 5577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5577] setpgid(0, 0) = 0
[pid 5577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5577] write(3, "1000", 4) = 4
[pid 5577] close(3) = 0
[pid 5577] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5577] memfd_create("syzkaller", 0) = 3
[pid 5577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5577] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5577] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5577] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5577] close(3) = 0
[pid 5577] mkdir("./file0", 0777) = 0
[ 152.654445][ T5577] loop0: detected capacity change from 0 to 4096
[ 152.671187][ T5577] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 152.679359][ T5577] NILFS (loop0): trying rollback from an earlier position
[ 152.692752][ T5577] NILFS (loop0): recovery complete
[pid 5577] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5577] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5577] chdir("./file0") = 0
[pid 5577] ioctl(4, LOOP_CLR_FD) = 0
[pid 5577] close(4) = 0
[pid 5577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5577] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 152.698651][ T5578] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5577] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5577] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5577] exit_group(0) = ?
[pid 5577] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5577, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./254", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./254", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./254/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./254/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./254/binderfs") = 0
umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./254/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./254/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./254/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./254/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./254") = 0
mkdir("./255", 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=0x555555db65d0) = 5579
./strace-static-x86_64: Process 5579 attached
[pid 5579] chdir("./255") = 0
[pid 5579] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5579] setpgid(0, 0) = 0
[pid 5579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5579] write(3, "1000", 4) = 4
[pid 5579] close(3) = 0
[pid 5579] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5579] memfd_create("syzkaller", 0) = 3
[pid 5579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5579] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5579] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5579] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5579] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5579] close(3) = 0
[pid 5579] mkdir("./file0", 0777) = 0
[ 153.006714][ T5579] loop0: detected capacity change from 0 to 4096
[ 153.026402][ T5579] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 153.034462][ T5579] NILFS (loop0): trying rollback from an earlier position
[ 153.050243][ T5579] NILFS (loop0): recovery complete
[pid 5579] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5579] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5579] chdir("./file0") = 0
[pid 5579] ioctl(4, LOOP_CLR_FD) = 0
[pid 5579] close(4) = 0
[pid 5579] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5579] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 153.056665][ T5580] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5579] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5579] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5579] exit_group(0) = ?
[pid 5579] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5579, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./255", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./255", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./255/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./255/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./255/binderfs") = 0
umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./255/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./255/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./255/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./255/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./255") = 0
mkdir("./256", 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=0x555555db65d0) = 5581
./strace-static-x86_64: Process 5581 attached
[pid 5581] chdir("./256") = 0
[pid 5581] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5581] setpgid(0, 0) = 0
[pid 5581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5581] write(3, "1000", 4) = 4
[pid 5581] close(3) = 0
[pid 5581] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5581] memfd_create("syzkaller", 0) = 3
[pid 5581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5581] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5581] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5581] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5581] close(3) = 0
[pid 5581] mkdir("./file0", 0777) = 0
[ 153.359208][ T5581] loop0: detected capacity change from 0 to 4096
[ 153.376878][ T5581] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 153.384970][ T5581] NILFS (loop0): trying rollback from an earlier position
[ 153.399264][ T5581] NILFS (loop0): recovery complete
[pid 5581] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5581] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5581] chdir("./file0") = 0
[pid 5581] ioctl(4, LOOP_CLR_FD) = 0
[pid 5581] close(4) = 0
[pid 5581] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5581] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 153.405257][ T5582] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5581] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5581] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5581] exit_group(0) = ?
[pid 5581] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5581, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./256", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./256", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./256/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./256/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./256/binderfs") = 0
umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./256/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./256/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./256/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./256/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./256") = 0
mkdir("./257", 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=0x555555db65d0) = 5583
./strace-static-x86_64: Process 5583 attached
[pid 5583] chdir("./257") = 0
[pid 5583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5583] setpgid(0, 0) = 0
[pid 5583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5583] write(3, "1000", 4) = 4
[pid 5583] close(3) = 0
[pid 5583] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5583] memfd_create("syzkaller", 0) = 3
[pid 5583] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5583] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5583] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5583] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5583] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5583] close(3) = 0
[pid 5583] mkdir("./file0", 0777) = 0
[ 153.705720][ T5583] loop0: detected capacity change from 0 to 4096
[ 153.722146][ T5583] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 153.730198][ T5583] NILFS (loop0): trying rollback from an earlier position
[ 153.744123][ T5583] NILFS (loop0): recovery complete
[pid 5583] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5583] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5583] chdir("./file0") = 0
[pid 5583] ioctl(4, LOOP_CLR_FD) = 0
[pid 5583] close(4) = 0
[pid 5583] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5583] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 153.751209][ T5584] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5583] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5583] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5583] exit_group(0) = ?
[pid 5583] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5583, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./257", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./257", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./257/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./257/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./257/binderfs") = 0
umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./257/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./257/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./257/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./257/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./257") = 0
mkdir("./258", 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=0x555555db65d0) = 5585
./strace-static-x86_64: Process 5585 attached
[pid 5585] chdir("./258") = 0
[pid 5585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5585] setpgid(0, 0) = 0
[pid 5585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5585] write(3, "1000", 4) = 4
[pid 5585] close(3) = 0
[pid 5585] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5585] memfd_create("syzkaller", 0) = 3
[pid 5585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5585] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5585] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5585] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5585] close(3) = 0
[pid 5585] mkdir("./file0", 0777) = 0
[pid 5585] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 154.049370][ T5585] loop0: detected capacity change from 0 to 4096
[ 154.065457][ T5585] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 154.073559][ T5585] NILFS (loop0): trying rollback from an earlier position
[ 154.087575][ T5585] NILFS (loop0): recovery complete
[pid 5585] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5585] chdir("./file0") = 0
[pid 5585] ioctl(4, LOOP_CLR_FD) = 0
[pid 5585] close(4) = 0
[pid 5585] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5585] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 154.094398][ T5586] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5585] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5585] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5585] exit_group(0) = ?
[pid 5585] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5585, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./258", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./258", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./258/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./258/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./258/binderfs") = 0
umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./258/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./258/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./258/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./258/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./258") = 0
mkdir("./259", 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=0x555555db65d0) = 5587
./strace-static-x86_64: Process 5587 attached
[pid 5587] chdir("./259") = 0
[pid 5587] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5587] setpgid(0, 0) = 0
[pid 5587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5587] write(3, "1000", 4) = 4
[pid 5587] close(3) = 0
[pid 5587] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5587] memfd_create("syzkaller", 0) = 3
[pid 5587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5587] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5587] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5587] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5587] close(3) = 0
[pid 5587] mkdir("./file0", 0777) = 0
[ 154.395526][ T5587] loop0: detected capacity change from 0 to 4096
[ 154.413060][ T5587] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 154.421121][ T5587] NILFS (loop0): trying rollback from an earlier position
[ 154.434883][ T5587] NILFS (loop0): recovery complete
[pid 5587] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5587] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5587] chdir("./file0") = 0
[pid 5587] ioctl(4, LOOP_CLR_FD) = 0
[pid 5587] close(4) = 0
[pid 5587] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5587] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 154.441191][ T5588] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 154.449669][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 154.449681][ T27] audit: type=1800 audit(1676306842.208:261): pid=5587 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5587] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5587] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5587] exit_group(0) = ?
[pid 5587] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5587, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./259", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./259", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./259/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./259/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./259/binderfs") = 0
umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./259/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./259/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./259/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./259/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./259") = 0
mkdir("./260", 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 5589 attached
<unfinished ...>
[pid 5589] chdir("./260") = 0
[pid 5589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5589] setpgid(0, 0) = 0
[pid 5589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5589
[pid 5589] <... openat resumed>) = 3
[pid 5589] write(3, "1000", 4) = 4
[pid 5589] close(3) = 0
[pid 5589] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5589] memfd_create("syzkaller", 0) = 3
[pid 5589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5589] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5589] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5589] close(3) = 0
[pid 5589] mkdir("./file0", 0777) = 0
[ 154.754037][ T5589] loop0: detected capacity change from 0 to 4096
[ 154.770248][ T5589] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 154.778454][ T5589] NILFS (loop0): trying rollback from an earlier position
[ 154.791393][ T5589] NILFS (loop0): recovery complete
[pid 5589] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5589] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5589] chdir("./file0") = 0
[pid 5589] ioctl(4, LOOP_CLR_FD) = 0
[pid 5589] close(4) = 0
[pid 5589] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5589] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 154.797186][ T5590] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 154.813090][ T27] audit: type=1800 audit(1676306842.578:262): pid=5589 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5589] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5589] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5589] exit_group(0) = ?
[pid 5589] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5589, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./260", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./260", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./260/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./260/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./260/binderfs") = 0
umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./260/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./260/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./260/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./260/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./260") = 0
mkdir("./261", 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=0x555555db65d0) = 5591
./strace-static-x86_64: Process 5591 attached
[pid 5591] chdir("./261") = 0
[pid 5591] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5591] setpgid(0, 0) = 0
[pid 5591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5591] write(3, "1000", 4) = 4
[pid 5591] close(3) = 0
[pid 5591] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5591] memfd_create("syzkaller", 0) = 3
[pid 5591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5591] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5591] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5591] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5591] close(3) = 0
[pid 5591] mkdir("./file0", 0777) = 0
[ 155.111693][ T5591] loop0: detected capacity change from 0 to 4096
[ 155.128121][ T5591] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 155.136173][ T5591] NILFS (loop0): trying rollback from an earlier position
[ 155.150949][ T5591] NILFS (loop0): recovery complete
[pid 5591] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5591] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5591] chdir("./file0") = 0
[pid 5591] ioctl(4, LOOP_CLR_FD) = 0
[pid 5591] close(4) = 0
[pid 5591] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5591] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 155.157256][ T5592] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 155.162793][ T27] audit: type=1800 audit(1676306842.918:263): pid=5591 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5591] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5591] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5591] exit_group(0) = ?
[pid 5591] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5591, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./261", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./261", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./261/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./261/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./261/binderfs") = 0
umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./261/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./261/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./261/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./261/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./261") = 0
mkdir("./262", 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=0x555555db65d0) = 5593
./strace-static-x86_64: Process 5593 attached
[pid 5593] chdir("./262") = 0
[pid 5593] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5593] setpgid(0, 0) = 0
[pid 5593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5593] write(3, "1000", 4) = 4
[pid 5593] close(3) = 0
[pid 5593] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5593] memfd_create("syzkaller", 0) = 3
[pid 5593] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5593] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5593] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5593] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5593] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5593] close(3) = 0
[pid 5593] mkdir("./file0", 0777) = 0
[ 155.474119][ T5593] loop0: detected capacity change from 0 to 4096
[ 155.492843][ T5593] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 155.500984][ T5593] NILFS (loop0): trying rollback from an earlier position
[ 155.517081][ T5593] NILFS (loop0): recovery complete
[pid 5593] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5593] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5593] chdir("./file0") = 0
[pid 5593] ioctl(4, LOOP_CLR_FD) = 0
[pid 5593] close(4) = 0
[pid 5593] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5593] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 155.523295][ T5594] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 155.538733][ T27] audit: type=1800 audit(1676306843.298:264): pid=5593 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5593] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5593] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5593] exit_group(0) = ?
[pid 5593] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5593, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./262", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./262", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./262/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./262/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./262/binderfs") = 0
umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./262/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./262/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./262/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./262/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./262") = 0
mkdir("./263", 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=0x555555db65d0) = 5595
./strace-static-x86_64: Process 5595 attached
[pid 5595] chdir("./263") = 0
[pid 5595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5595] setpgid(0, 0) = 0
[pid 5595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5595] write(3, "1000", 4) = 4
[pid 5595] close(3) = 0
[pid 5595] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5595] memfd_create("syzkaller", 0) = 3
[pid 5595] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5595] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5595] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5595] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5595] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5595] close(3) = 0
[pid 5595] mkdir("./file0", 0777) = 0
[pid 5595] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5595] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5595] chdir("./file0") = 0
[ 155.828386][ T5595] loop0: detected capacity change from 0 to 4096
[ 155.845343][ T5595] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 155.853549][ T5595] NILFS (loop0): trying rollback from an earlier position
[ 155.867577][ T5595] NILFS (loop0): recovery complete
[pid 5595] ioctl(4, LOOP_CLR_FD) = 0
[pid 5595] close(4) = 0
[pid 5595] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5595] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 155.874452][ T5596] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 155.886244][ T27] audit: type=1800 audit(1676306843.648:265): pid=5595 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5595] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5595] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5595] exit_group(0) = ?
[pid 5595] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5595, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./263", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./263", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./263/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./263/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./263/binderfs") = 0
umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./263/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./263/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./263/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./263/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./263") = 0
mkdir("./264", 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=0x555555db65d0) = 5597
./strace-static-x86_64: Process 5597 attached
[pid 5597] chdir("./264") = 0
[pid 5597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5597] setpgid(0, 0) = 0
[pid 5597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5597] write(3, "1000", 4) = 4
[pid 5597] close(3) = 0
[pid 5597] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5597] memfd_create("syzkaller", 0) = 3
[pid 5597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5597] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5597] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5597] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5597] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5597] close(3) = 0
[pid 5597] mkdir("./file0", 0777) = 0
[ 156.164875][ T5597] loop0: detected capacity change from 0 to 4096
[ 156.182769][ T5597] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 156.190835][ T5597] NILFS (loop0): trying rollback from an earlier position
[ 156.204569][ T5597] NILFS (loop0): recovery complete
[pid 5597] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5597] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5597] chdir("./file0") = 0
[pid 5597] ioctl(4, LOOP_CLR_FD) = 0
[pid 5597] close(4) = 0
[pid 5597] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5597] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 156.211102][ T5598] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 156.225942][ T27] audit: type=1800 audit(1676306843.988:266): pid=5597 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5597] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5597] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5597] exit_group(0) = ?
[pid 5597] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5597, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./264", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./264", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./264/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./264/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./264/binderfs") = 0
umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./264/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./264/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./264/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./264/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./264") = 0
mkdir("./265", 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=0x555555db65d0) = 5599
./strace-static-x86_64: Process 5599 attached
[pid 5599] chdir("./265") = 0
[pid 5599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5599] setpgid(0, 0) = 0
[pid 5599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5599] write(3, "1000", 4) = 4
[pid 5599] close(3) = 0
[pid 5599] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5599] memfd_create("syzkaller", 0) = 3
[pid 5599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5599] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5599] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5599] close(3) = 0
[pid 5599] mkdir("./file0", 0777) = 0
[ 156.517476][ T5599] loop0: detected capacity change from 0 to 4096
[ 156.533066][ T5599] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 156.541170][ T5599] NILFS (loop0): trying rollback from an earlier position
[ 156.555203][ T5599] NILFS (loop0): recovery complete
[pid 5599] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5599] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5599] chdir("./file0") = 0
[pid 5599] ioctl(4, LOOP_CLR_FD) = 0
[pid 5599] close(4) = 0
[pid 5599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5599] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 156.561720][ T5600] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 156.576931][ T27] audit: type=1800 audit(1676306844.338:267): pid=5599 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5599] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5599] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5599] exit_group(0) = ?
[pid 5599] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5599, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./265", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./265", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./265/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./265/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./265/binderfs") = 0
umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./265/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./265/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./265/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./265/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./265") = 0
mkdir("./266", 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=0x555555db65d0) = 5601
./strace-static-x86_64: Process 5601 attached
[pid 5601] chdir("./266") = 0
[pid 5601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5601] setpgid(0, 0) = 0
[pid 5601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5601] write(3, "1000", 4) = 4
[pid 5601] close(3) = 0
[pid 5601] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5601] memfd_create("syzkaller", 0) = 3
[pid 5601] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5601] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5601] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5601] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5601] close(3) = 0
[pid 5601] mkdir("./file0", 0777) = 0
[ 156.875003][ T5601] loop0: detected capacity change from 0 to 4096
[ 156.891000][ T5601] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 156.899146][ T5601] NILFS (loop0): trying rollback from an earlier position
[ 156.916567][ T5601] NILFS (loop0): recovery complete
[pid 5601] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5601] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5601] chdir("./file0") = 0
[pid 5601] ioctl(4, LOOP_CLR_FD) = 0
[pid 5601] close(4) = 0
[pid 5601] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5601] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 156.922681][ T5602] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 156.955909][ T27] audit: type=1800 audit(1676306844.708:268): pid=5601 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5601] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5601] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5601] exit_group(0) = ?
[pid 5601] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5601, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./266", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./266", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./266/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./266/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./266/binderfs") = 0
umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./266/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./266/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./266/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./266/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./266") = 0
mkdir("./267", 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=0x555555db65d0) = 5603
./strace-static-x86_64: Process 5603 attached
[pid 5603] chdir("./267") = 0
[pid 5603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5603] setpgid(0, 0) = 0
[pid 5603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5603] write(3, "1000", 4) = 4
[pid 5603] close(3) = 0
[pid 5603] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5603] memfd_create("syzkaller", 0) = 3
[pid 5603] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5603] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5603] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5603] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5603] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5603] close(3) = 0
[pid 5603] mkdir("./file0", 0777) = 0
[ 157.239413][ T5603] loop0: detected capacity change from 0 to 4096
[ 157.253951][ T5603] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 157.262044][ T5603] NILFS (loop0): trying rollback from an earlier position
[ 157.276310][ T5603] NILFS (loop0): recovery complete
[pid 5603] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5603] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5603] chdir("./file0") = 0
[pid 5603] ioctl(4, LOOP_CLR_FD) = 0
[pid 5603] close(4) = 0
[pid 5603] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5603] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 157.282317][ T5604] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 157.298762][ T27] audit: type=1800 audit(1676306845.058:269): pid=5603 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5603] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5603] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5603] exit_group(0) = ?
[pid 5603] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5603, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./267", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./267", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./267/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./267/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./267/binderfs") = 0
umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./267/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./267/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./267/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./267/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./267") = 0
mkdir("./268", 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=0x555555db65d0) = 5605
./strace-static-x86_64: Process 5605 attached
[pid 5605] chdir("./268") = 0
[pid 5605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5605] setpgid(0, 0) = 0
[pid 5605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5605] write(3, "1000", 4) = 4
[pid 5605] close(3) = 0
[pid 5605] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5605] memfd_create("syzkaller", 0) = 3
[pid 5605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5605] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5605] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5605] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5605] close(3) = 0
[pid 5605] mkdir("./file0", 0777) = 0
[pid 5605] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 157.574259][ T5605] loop0: detected capacity change from 0 to 4096
[ 157.590304][ T5605] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 157.598374][ T5605] NILFS (loop0): trying rollback from an earlier position
[ 157.611561][ T5605] NILFS (loop0): recovery complete
[pid 5605] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5605] chdir("./file0") = 0
[pid 5605] ioctl(4, LOOP_CLR_FD) = 0
[pid 5605] close(4) = 0
[pid 5605] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5605] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 157.618420][ T5606] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 157.631534][ T27] audit: type=1800 audit(1676306845.398:270): pid=5605 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5605] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5605] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5605] exit_group(0) = ?
[pid 5605] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5605, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./268", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./268", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./268/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./268/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./268/binderfs") = 0
umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./268/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./268/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./268/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./268/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./268") = 0
mkdir("./269", 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=0x555555db65d0) = 5607
./strace-static-x86_64: Process 5607 attached
[pid 5607] chdir("./269") = 0
[pid 5607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5607] setpgid(0, 0) = 0
[pid 5607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5607] write(3, "1000", 4) = 4
[pid 5607] close(3) = 0
[pid 5607] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5607] memfd_create("syzkaller", 0) = 3
[pid 5607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5607] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5607] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5607] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5607] close(3) = 0
[pid 5607] mkdir("./file0", 0777) = 0
[ 157.910604][ T5607] loop0: detected capacity change from 0 to 4096
[ 157.926803][ T5607] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 157.934824][ T5607] NILFS (loop0): trying rollback from an earlier position
[ 157.948412][ T5607] NILFS (loop0): recovery complete
[pid 5607] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5607] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5607] chdir("./file0") = 0
[pid 5607] ioctl(4, LOOP_CLR_FD) = 0
[pid 5607] close(4) = 0
[pid 5607] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5607] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 157.954597][ T5608] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5607] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5607] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5607] exit_group(0) = ?
[pid 5607] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5607, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./269", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./269", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./269/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./269/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./269/binderfs") = 0
umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./269/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./269/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./269/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./269/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./269") = 0
mkdir("./270", 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=0x555555db65d0) = 5609
./strace-static-x86_64: Process 5609 attached
[pid 5609] chdir("./270") = 0
[pid 5609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5609] setpgid(0, 0) = 0
[pid 5609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5609] write(3, "1000", 4) = 4
[pid 5609] close(3) = 0
[pid 5609] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5609] memfd_create("syzkaller", 0) = 3
[pid 5609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5609] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5609] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5609] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5609] close(3) = 0
[pid 5609] mkdir("./file0", 0777) = 0
[ 158.244008][ T5609] loop0: detected capacity change from 0 to 4096
[ 158.258739][ T5609] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 158.266845][ T5609] NILFS (loop0): trying rollback from an earlier position
[ 158.280112][ T5609] NILFS (loop0): recovery complete
[pid 5609] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5609] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5609] chdir("./file0") = 0
[pid 5609] ioctl(4, LOOP_CLR_FD) = 0
[pid 5609] close(4) = 0
[pid 5609] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5609] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 158.286362][ T5610] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5609] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5609] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5609] exit_group(0) = ?
[pid 5609] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5609, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./270", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./270", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./270/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./270/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./270/binderfs") = 0
umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./270/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./270/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./270/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./270/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./270") = 0
mkdir("./271", 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=0x555555db65d0) = 5611
./strace-static-x86_64: Process 5611 attached
[pid 5611] chdir("./271") = 0
[pid 5611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5611] setpgid(0, 0) = 0
[pid 5611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5611] write(3, "1000", 4) = 4
[pid 5611] close(3) = 0
[pid 5611] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5611] memfd_create("syzkaller", 0) = 3
[pid 5611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5611] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5611] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5611] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5611] close(3) = 0
[pid 5611] mkdir("./file0", 0777) = 0
[ 158.569244][ T5611] loop0: detected capacity change from 0 to 4096
[ 158.585732][ T5611] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 158.593845][ T5611] NILFS (loop0): trying rollback from an earlier position
[ 158.608044][ T5611] NILFS (loop0): recovery complete
[pid 5611] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5611] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5611] chdir("./file0") = 0
[pid 5611] ioctl(4, LOOP_CLR_FD) = 0
[pid 5611] close(4) = 0
[pid 5611] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5611] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 158.614367][ T5612] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5611] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5611] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5611] exit_group(0) = ?
[pid 5611] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5611, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./271", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./271", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./271/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./271/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./271/binderfs") = 0
umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./271/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./271/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./271/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./271/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./271") = 0
mkdir("./272", 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=0x555555db65d0) = 5613
./strace-static-x86_64: Process 5613 attached
[pid 5613] chdir("./272") = 0
[pid 5613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5613] setpgid(0, 0) = 0
[pid 5613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5613] write(3, "1000", 4) = 4
[pid 5613] close(3) = 0
[pid 5613] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5613] memfd_create("syzkaller", 0) = 3
[pid 5613] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5613] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5613] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5613] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5613] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5613] close(3) = 0
[pid 5613] mkdir("./file0", 0777) = 0
[pid 5613] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5613] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 158.897008][ T5613] loop0: detected capacity change from 0 to 4096
[ 158.911843][ T5613] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 158.919915][ T5613] NILFS (loop0): trying rollback from an earlier position
[ 158.933874][ T5613] NILFS (loop0): recovery complete
[pid 5613] chdir("./file0") = 0
[pid 5613] ioctl(4, LOOP_CLR_FD) = 0
[pid 5613] close(4) = 0
[pid 5613] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5613] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 158.940608][ T5614] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5613] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5613] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5613] exit_group(0) = ?
[pid 5613] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5613, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./272", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./272", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./272/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./272/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./272/binderfs") = 0
umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./272/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./272/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./272/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./272/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./272") = 0
mkdir("./273", 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=0x555555db65d0) = 5615
./strace-static-x86_64: Process 5615 attached
[pid 5615] chdir("./273") = 0
[pid 5615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5615] setpgid(0, 0) = 0
[pid 5615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5615] write(3, "1000", 4) = 4
[pid 5615] close(3) = 0
[pid 5615] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5615] memfd_create("syzkaller", 0) = 3
[pid 5615] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5615] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5615] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5615] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5615] close(3) = 0
[pid 5615] mkdir("./file0", 0777) = 0
[pid 5615] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 159.243840][ T5615] loop0: detected capacity change from 0 to 4096
[ 159.260160][ T5615] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 159.268309][ T5615] NILFS (loop0): trying rollback from an earlier position
[ 159.281424][ T5615] NILFS (loop0): recovery complete
[pid 5615] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5615] chdir("./file0") = 0
[pid 5615] ioctl(4, LOOP_CLR_FD) = 0
[pid 5615] close(4) = 0
[pid 5615] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5615] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 159.288659][ T5616] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5615] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5615] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5615] exit_group(0) = ?
[pid 5615] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5615, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./273", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./273", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./273/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./273/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./273/binderfs") = 0
umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./273/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./273/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./273/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./273/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./273") = 0
mkdir("./274", 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=0x555555db65d0) = 5617
./strace-static-x86_64: Process 5617 attached
[pid 5617] chdir("./274") = 0
[pid 5617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5617] setpgid(0, 0) = 0
[pid 5617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5617] write(3, "1000", 4) = 4
[pid 5617] close(3) = 0
[pid 5617] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5617] memfd_create("syzkaller", 0) = 3
[pid 5617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5617] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5617] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5617] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5617] close(3) = 0
[pid 5617] mkdir("./file0", 0777) = 0
[pid 5617] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5617] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5617] chdir("./file0") = 0
[pid 5617] ioctl(4, LOOP_CLR_FD) = 0
[ 159.587741][ T5617] loop0: detected capacity change from 0 to 4096
[ 159.603449][ T5617] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 159.611571][ T5617] NILFS (loop0): trying rollback from an earlier position
[ 159.625850][ T5617] NILFS (loop0): recovery complete
[pid 5617] close(4) = 0
[pid 5617] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5617] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 159.632036][ T5618] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 159.647838][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 159.647850][ T27] audit: type=1800 audit(1676306847.408:276): pid=5617 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5617] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5617] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5617] exit_group(0) = ?
[pid 5617] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5617, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./274", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./274", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./274/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./274/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./274/binderfs") = 0
umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./274/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./274/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./274/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./274/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./274") = 0
mkdir("./275", 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=0x555555db65d0) = 5619
./strace-static-x86_64: Process 5619 attached
[pid 5619] chdir("./275") = 0
[pid 5619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5619] setpgid(0, 0) = 0
[pid 5619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5619] write(3, "1000", 4) = 4
[pid 5619] close(3) = 0
[pid 5619] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5619] memfd_create("syzkaller", 0) = 3
[pid 5619] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5619] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5619] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5619] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5619] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5619] close(3) = 0
[pid 5619] mkdir("./file0", 0777) = 0
[ 159.982307][ T5619] loop0: detected capacity change from 0 to 4096
[ 159.998550][ T5619] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 160.006644][ T5619] NILFS (loop0): trying rollback from an earlier position
[ 160.021477][ T5619] NILFS (loop0): recovery complete
[pid 5619] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5619] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5619] chdir("./file0") = 0
[pid 5619] ioctl(4, LOOP_CLR_FD) = 0
[pid 5619] close(4) = 0
[pid 5619] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5619] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 160.027941][ T5620] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 160.044416][ T27] audit: type=1800 audit(1676306847.808:277): pid=5619 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5619] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5619] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5619] exit_group(0) = ?
[pid 5619] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5619, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./275", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./275", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./275/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./275/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./275/binderfs") = 0
umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./275/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./275/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./275/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./275/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./275") = 0
mkdir("./276", 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=0x555555db65d0) = 5621
./strace-static-x86_64: Process 5621 attached
[pid 5621] chdir("./276") = 0
[pid 5621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5621] setpgid(0, 0) = 0
[pid 5621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5621] write(3, "1000", 4) = 4
[pid 5621] close(3) = 0
[pid 5621] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5621] memfd_create("syzkaller", 0) = 3
[pid 5621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5621] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5621] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5621] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5621] close(3) = 0
[pid 5621] mkdir("./file0", 0777) = 0
[ 160.344675][ T5621] loop0: detected capacity change from 0 to 4096
[ 160.363590][ T5621] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 160.371717][ T5621] NILFS (loop0): trying rollback from an earlier position
[ 160.386603][ T5621] NILFS (loop0): recovery complete
[pid 5621] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5621] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5621] chdir("./file0") = 0
[pid 5621] ioctl(4, LOOP_CLR_FD) = 0
[pid 5621] close(4) = 0
[pid 5621] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5621] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 160.392520][ T5622] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 160.407603][ T27] audit: type=1800 audit(1676306848.168:278): pid=5621 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5621] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5621] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5621] exit_group(0) = ?
[pid 5621] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5621, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./276", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./276", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./276/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./276/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./276/binderfs") = 0
umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./276/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./276/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./276/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./276/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./276") = 0
mkdir("./277", 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=0x555555db65d0) = 5623
./strace-static-x86_64: Process 5623 attached
[pid 5623] chdir("./277") = 0
[pid 5623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5623] setpgid(0, 0) = 0
[pid 5623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5623] write(3, "1000", 4) = 4
[pid 5623] close(3) = 0
[pid 5623] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5623] memfd_create("syzkaller", 0) = 3
[pid 5623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5623] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5623] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5623] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5623] close(3) = 0
[pid 5623] mkdir("./file0", 0777) = 0
[pid 5623] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5623] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5623] chdir("./file0") = 0
[ 160.698971][ T5623] loop0: detected capacity change from 0 to 4096
[ 160.715258][ T5623] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 160.723376][ T5623] NILFS (loop0): trying rollback from an earlier position
[ 160.737981][ T5623] NILFS (loop0): recovery complete
[pid 5623] ioctl(4, LOOP_CLR_FD) = 0
[pid 5623] close(4) = 0
[pid 5623] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5623] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 160.744801][ T5624] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 160.767438][ T27] audit: type=1800 audit(1676306848.528:279): pid=5623 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5623] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5623] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5623] exit_group(0) = ?
[pid 5623] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5623, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./277", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./277", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./277/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./277/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./277/binderfs") = 0
umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./277/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./277/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./277/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./277/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./277") = 0
mkdir("./278", 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=0x555555db65d0) = 5625
./strace-static-x86_64: Process 5625 attached
[pid 5625] chdir("./278") = 0
[pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5625] setpgid(0, 0) = 0
[pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5625] write(3, "1000", 4) = 4
[pid 5625] close(3) = 0
[pid 5625] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5625] memfd_create("syzkaller", 0) = 3
[pid 5625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5625] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5625] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5625] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5625] close(3) = 0
[pid 5625] mkdir("./file0", 0777) = 0
[pid 5625] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 161.069242][ T5625] loop0: detected capacity change from 0 to 4096
[ 161.086373][ T5625] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 161.094408][ T5625] NILFS (loop0): trying rollback from an earlier position
[ 161.108391][ T5625] NILFS (loop0): recovery complete
[pid 5625] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5625] chdir("./file0") = 0
[pid 5625] ioctl(4, LOOP_CLR_FD) = 0
[pid 5625] close(4) = 0
[pid 5625] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5625] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 161.115924][ T5626] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 161.128196][ T27] audit: type=1800 audit(1676306848.888:280): pid=5625 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5625] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5625] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5625] exit_group(0) = ?
[pid 5625] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5625, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./278", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./278", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./278/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./278/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./278/binderfs") = 0
umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./278/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./278/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./278/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./278/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./278") = 0
mkdir("./279", 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=0x555555db65d0) = 5627
./strace-static-x86_64: Process 5627 attached
[pid 5627] chdir("./279") = 0
[pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5627] setpgid(0, 0) = 0
[pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5627] write(3, "1000", 4) = 4
[pid 5627] close(3) = 0
[pid 5627] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5627] memfd_create("syzkaller", 0) = 3
[pid 5627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5627] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5627] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5627] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5627] close(3) = 0
[pid 5627] mkdir("./file0", 0777) = 0
[ 161.424060][ T5627] loop0: detected capacity change from 0 to 4096
[ 161.440126][ T5627] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 161.448314][ T5627] NILFS (loop0): trying rollback from an earlier position
[ 161.462739][ T5627] NILFS (loop0): recovery complete
[pid 5627] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5627] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5627] chdir("./file0") = 0
[pid 5627] ioctl(4, LOOP_CLR_FD) = 0
[pid 5627] close(4) = 0
[pid 5627] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5627] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 161.469603][ T5628] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 161.487990][ T27] audit: type=1800 audit(1676306849.248:281): pid=5627 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5627] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5627] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5627] exit_group(0) = ?
[pid 5627] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5627, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./279", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./279", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./279/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./279/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./279/binderfs") = 0
umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./279/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./279/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./279/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./279/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./279") = 0
mkdir("./280", 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=0x555555db65d0) = 5629
./strace-static-x86_64: Process 5629 attached
[pid 5629] chdir("./280") = 0
[pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5629] setpgid(0, 0) = 0
[pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5629] write(3, "1000", 4) = 4
[pid 5629] close(3) = 0
[pid 5629] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5629] memfd_create("syzkaller", 0) = 3
[pid 5629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5629] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5629] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5629] close(3) = 0
[pid 5629] mkdir("./file0", 0777) = 0
[ 161.791329][ T5629] loop0: detected capacity change from 0 to 4096
[ 161.806428][ T5629] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 161.814492][ T5629] NILFS (loop0): trying rollback from an earlier position
[ 161.828038][ T5629] NILFS (loop0): recovery complete
[pid 5629] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5629] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5629] chdir("./file0") = 0
[pid 5629] ioctl(4, LOOP_CLR_FD) = 0
[pid 5629] close(4) = 0
[pid 5629] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5629] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 161.834415][ T5630] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 161.856209][ T27] audit: type=1800 audit(1676306849.608:282): pid=5629 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5629] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5629] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5629] exit_group(0) = ?
[pid 5629] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5629, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./280", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./280", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./280/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./280/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./280/binderfs") = 0
umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./280/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./280/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./280/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./280/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./280") = 0
mkdir("./281", 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=0x555555db65d0) = 5631
./strace-static-x86_64: Process 5631 attached
[pid 5631] chdir("./281") = 0
[pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5631] setpgid(0, 0) = 0
[pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5631] write(3, "1000", 4) = 4
[pid 5631] close(3) = 0
[pid 5631] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5631] memfd_create("syzkaller", 0) = 3
[pid 5631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5631] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5631] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5631] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5631] close(3) = 0
[pid 5631] mkdir("./file0", 0777) = 0
[ 162.154342][ T5631] loop0: detected capacity change from 0 to 4096
[ 162.172114][ T5631] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 162.180276][ T5631] NILFS (loop0): trying rollback from an earlier position
[ 162.195142][ T5631] NILFS (loop0): recovery complete
[pid 5631] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5631] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5631] chdir("./file0") = 0
[pid 5631] ioctl(4, LOOP_CLR_FD) = 0
[pid 5631] close(4) = 0
[pid 5631] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5631] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 162.201264][ T5632] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 162.216327][ T27] audit: type=1800 audit(1676306849.978:283): pid=5631 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5631] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5631] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5631] exit_group(0) = ?
[pid 5631] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5631, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./281", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./281", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./281/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./281/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./281/binderfs") = 0
umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./281/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./281/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./281/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./281/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./281") = 0
mkdir("./282", 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=0x555555db65d0) = 5633
./strace-static-x86_64: Process 5633 attached
[pid 5633] chdir("./282") = 0
[pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5633] setpgid(0, 0) = 0
[pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5633] write(3, "1000", 4) = 4
[pid 5633] close(3) = 0
[pid 5633] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5633] memfd_create("syzkaller", 0) = 3
[pid 5633] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5633] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5633] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5633] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5633] close(3) = 0
[pid 5633] mkdir("./file0", 0777) = 0
[pid 5633] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5633] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 162.537289][ T5633] loop0: detected capacity change from 0 to 4096
[ 162.553023][ T5633] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 162.561152][ T5633] NILFS (loop0): trying rollback from an earlier position
[ 162.575389][ T5633] NILFS (loop0): recovery complete
[pid 5633] chdir("./file0") = 0
[pid 5633] ioctl(4, LOOP_CLR_FD) = 0
[pid 5633] close(4) = 0
[pid 5633] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5633] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 162.582802][ T5634] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 162.603282][ T27] audit: type=1800 audit(1676306850.358:284): pid=5633 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5633] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5633] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5633] exit_group(0) = ?
[pid 5633] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5633, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./282", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./282", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./282/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./282/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./282/binderfs") = 0
umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./282/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./282/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./282/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./282/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./282") = 0
mkdir("./283", 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=0x555555db65d0) = 5635
./strace-static-x86_64: Process 5635 attached
[pid 5635] chdir("./283") = 0
[pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5635] setpgid(0, 0) = 0
[pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5635] write(3, "1000", 4) = 4
[pid 5635] close(3) = 0
[pid 5635] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5635] memfd_create("syzkaller", 0) = 3
[pid 5635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5635] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5635] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5635] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5635] close(3) = 0
[pid 5635] mkdir("./file0", 0777) = 0
[pid 5635] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 162.916533][ T5635] loop0: detected capacity change from 0 to 4096
[ 162.933143][ T5635] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 162.941228][ T5635] NILFS (loop0): trying rollback from an earlier position
[ 162.955472][ T5635] NILFS (loop0): recovery complete
[pid 5635] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5635] chdir("./file0") = 0
[pid 5635] ioctl(4, LOOP_CLR_FD) = 0
[pid 5635] close(4) = 0
[pid 5635] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5635] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 162.961870][ T5636] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 162.976359][ T27] audit: type=1800 audit(1676306850.738:285): pid=5635 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5635] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5635] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5635] exit_group(0) = ?
[pid 5635] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5635, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./283", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./283", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./283/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./283/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./283/binderfs") = 0
umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./283/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./283/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./283/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./283/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./283") = 0
mkdir("./284", 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=0x555555db65d0) = 5637
./strace-static-x86_64: Process 5637 attached
[pid 5637] chdir("./284") = 0
[pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5637] setpgid(0, 0) = 0
[pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5637] write(3, "1000", 4) = 4
[pid 5637] close(3) = 0
[pid 5637] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5637] memfd_create("syzkaller", 0) = 3
[pid 5637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5637] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5637] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5637] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5637] close(3) = 0
[pid 5637] mkdir("./file0", 0777) = 0
[pid 5637] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 163.271156][ T5637] loop0: detected capacity change from 0 to 4096
[ 163.287591][ T5637] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 163.295691][ T5637] NILFS (loop0): trying rollback from an earlier position
[ 163.309912][ T5637] NILFS (loop0): recovery complete
[pid 5637] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5637] chdir("./file0") = 0
[pid 5637] ioctl(4, LOOP_CLR_FD) = 0
[pid 5637] close(4) = 0
[pid 5637] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5637] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 163.316844][ T5638] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5637] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5637] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5637] exit_group(0) = ?
[pid 5637] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5637, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./284", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./284", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./284/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./284/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./284/binderfs") = 0
umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./284/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./284/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./284/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./284/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./284") = 0
mkdir("./285", 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=0x555555db65d0) = 5639
./strace-static-x86_64: Process 5639 attached
[pid 5639] chdir("./285") = 0
[pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5639] setpgid(0, 0) = 0
[pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5639] write(3, "1000", 4) = 4
[pid 5639] close(3) = 0
[pid 5639] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5639] memfd_create("syzkaller", 0) = 3
[pid 5639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5639] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5639] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5639] close(3) = 0
[pid 5639] mkdir("./file0", 0777) = 0
[ 163.629907][ T5639] loop0: detected capacity change from 0 to 4096
[ 163.647556][ T5639] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 163.655732][ T5639] NILFS (loop0): trying rollback from an earlier position
[ 163.670237][ T5639] NILFS (loop0): recovery complete
[pid 5639] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5639] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5639] chdir("./file0") = 0
[pid 5639] ioctl(4, LOOP_CLR_FD) = 0
[pid 5639] close(4) = 0
[pid 5639] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5639] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 163.676019][ T5640] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5639] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5639] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5639] exit_group(0) = ?
[pid 5639] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5639, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./285", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./285", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./285/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./285/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./285/binderfs") = 0
umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./285/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./285/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./285/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./285/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./285") = 0
mkdir("./286", 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=0x555555db65d0) = 5641
./strace-static-x86_64: Process 5641 attached
[pid 5641] chdir("./286") = 0
[pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5641] setpgid(0, 0) = 0
[pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5641] write(3, "1000", 4) = 4
[pid 5641] close(3) = 0
[pid 5641] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5641] memfd_create("syzkaller", 0) = 3
[pid 5641] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5641] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5641] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5641] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5641] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5641] close(3) = 0
[pid 5641] mkdir("./file0", 0777) = 0
[ 163.974546][ T5641] loop0: detected capacity change from 0 to 4096
[ 163.992431][ T5641] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 164.000556][ T5641] NILFS (loop0): trying rollback from an earlier position
[ 164.015071][ T5641] NILFS (loop0): recovery complete
[pid 5641] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5641] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5641] chdir("./file0") = 0
[pid 5641] ioctl(4, LOOP_CLR_FD) = 0
[pid 5641] close(4) = 0
[pid 5641] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5641] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 164.020946][ T5642] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5641] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5641] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5641] exit_group(0) = ?
[pid 5641] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5641, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./286", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./286", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./286/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./286/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./286/binderfs") = 0
umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./286/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./286/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./286/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./286/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./286") = 0
mkdir("./287", 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=0x555555db65d0) = 5643
./strace-static-x86_64: Process 5643 attached
[pid 5643] chdir("./287") = 0
[pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5643] setpgid(0, 0) = 0
[pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5643] write(3, "1000", 4) = 4
[pid 5643] close(3) = 0
[pid 5643] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5643] memfd_create("syzkaller", 0) = 3
[pid 5643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5643] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5643] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5643] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5643] close(3) = 0
[pid 5643] mkdir("./file0", 0777) = 0
[ 164.308864][ T5643] loop0: detected capacity change from 0 to 4096
[ 164.324836][ T5643] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 164.333156][ T5643] NILFS (loop0): trying rollback from an earlier position
[ 164.349911][ T5643] NILFS (loop0): recovery complete
[pid 5643] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5643] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5643] chdir("./file0") = 0
[pid 5643] ioctl(4, LOOP_CLR_FD) = 0
[pid 5643] close(4) = 0
[pid 5643] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5643] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 164.356508][ T5644] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5643] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5643] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5643] exit_group(0) = ?
[pid 5643] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5643, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./287", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./287", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./287/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./287/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./287/binderfs") = 0
umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./287/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./287/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./287/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./287/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./287") = 0
mkdir("./288", 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=0x555555db65d0) = 5645
./strace-static-x86_64: Process 5645 attached
[pid 5645] chdir("./288") = 0
[pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5645] setpgid(0, 0) = 0
[pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5645] write(3, "1000", 4) = 4
[pid 5645] close(3) = 0
[pid 5645] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5645] memfd_create("syzkaller", 0) = 3
[pid 5645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5645] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5645] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5645] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5645] close(3) = 0
[pid 5645] mkdir("./file0", 0777) = 0
[ 164.670572][ T5645] loop0: detected capacity change from 0 to 4096
[ 164.686701][ T5645] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 164.694763][ T5645] NILFS (loop0): trying rollback from an earlier position
[ 164.709508][ T5645] NILFS (loop0): recovery complete
[pid 5645] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5645] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5645] chdir("./file0") = 0
[pid 5645] ioctl(4, LOOP_CLR_FD) = 0
[pid 5645] close(4) = 0
[pid 5645] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5645] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 164.715906][ T5646] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 164.736248][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 164.736266][ T27] audit: type=1800 audit(1676306852.488:290): pid=5645 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5645] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5645] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5645] exit_group(0) = ?
[pid 5645] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5645, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./288", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./288", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./288/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./288/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./288/binderfs") = 0
umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./288/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./288/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./288/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./288/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./288") = 0
mkdir("./289", 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=0x555555db65d0) = 5647
./strace-static-x86_64: Process 5647 attached
[pid 5647] chdir("./289") = 0
[pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5647] setpgid(0, 0) = 0
[pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5647] write(3, "1000", 4) = 4
[pid 5647] close(3) = 0
[pid 5647] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5647] memfd_create("syzkaller", 0) = 3
[pid 5647] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5647] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5647] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5647] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5647] close(3) = 0
[pid 5647] mkdir("./file0", 0777) = 0
[ 165.036461][ T5647] loop0: detected capacity change from 0 to 4096
[ 165.053428][ T5647] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 165.061536][ T5647] NILFS (loop0): trying rollback from an earlier position
[ 165.076542][ T5647] NILFS (loop0): recovery complete
[pid 5647] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5647] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5647] chdir("./file0") = 0
[pid 5647] ioctl(4, LOOP_CLR_FD) = 0
[pid 5647] close(4) = 0
[pid 5647] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5647] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 165.083156][ T5648] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 165.106255][ T27] audit: type=1800 audit(1676306852.858:291): pid=5647 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5647] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5647] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5647] exit_group(0) = ?
[pid 5647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5647, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./289", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./289", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./289/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./289/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./289/binderfs") = 0
umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./289/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./289/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./289/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./289/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./289") = 0
mkdir("./290", 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=0x555555db65d0) = 5649
./strace-static-x86_64: Process 5649 attached
[pid 5649] chdir("./290") = 0
[pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5649] setpgid(0, 0) = 0
[pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5649] write(3, "1000", 4) = 4
[pid 5649] close(3) = 0
[pid 5649] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5649] memfd_create("syzkaller", 0) = 3
[pid 5649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5649] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5649] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5649] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5649] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5649] close(3) = 0
[pid 5649] mkdir("./file0", 0777) = 0
[ 165.423481][ T5649] loop0: detected capacity change from 0 to 4096
[ 165.439877][ T5649] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 165.447964][ T5649] NILFS (loop0): trying rollback from an earlier position
[ 165.461871][ T5649] NILFS (loop0): recovery complete
[pid 5649] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5649] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5649] chdir("./file0") = 0
[pid 5649] ioctl(4, LOOP_CLR_FD) = 0
[pid 5649] close(4) = 0
[pid 5649] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5649] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 165.468620][ T5650] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 165.486196][ T27] audit: type=1800 audit(1676306853.228:292): pid=5649 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5649] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5649] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5649] exit_group(0) = ?
[pid 5649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5649, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
umount2("./290", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./290", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./290/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./290/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./290/binderfs") = 0
umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./290/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./290/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./290/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./290/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./290") = 0
mkdir("./291", 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=0x555555db65d0) = 5651
./strace-static-x86_64: Process 5651 attached
[pid 5651] chdir("./291") = 0
[pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5651] setpgid(0, 0) = 0
[pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5651] write(3, "1000", 4) = 4
[pid 5651] close(3) = 0
[pid 5651] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5651] memfd_create("syzkaller", 0) = 3
[pid 5651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5651] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5651] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5651] close(3) = 0
[pid 5651] mkdir("./file0", 0777) = 0
[pid 5651] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5651] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5651] chdir("./file0") = 0
[ 165.793003][ T5651] loop0: detected capacity change from 0 to 4096
[ 165.809430][ T5651] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 165.817500][ T5651] NILFS (loop0): trying rollback from an earlier position
[ 165.832042][ T5651] NILFS (loop0): recovery complete
[pid 5651] ioctl(4, LOOP_CLR_FD) = 0
[pid 5651] close(4) = 0
[pid 5651] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5651] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 165.838114][ T5652] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 165.856409][ T27] audit: type=1800 audit(1676306853.608:293): pid=5651 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5651] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5651] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5651] exit_group(0) = ?
[pid 5651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5651, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./291", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./291", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./291/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./291/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./291/binderfs") = 0
umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./291/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./291/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./291/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./291/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./291") = 0
mkdir("./292", 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=0x555555db65d0) = 5653
./strace-static-x86_64: Process 5653 attached
[pid 5653] chdir("./292") = 0
[pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5653] setpgid(0, 0) = 0
[pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5653] write(3, "1000", 4) = 4
[pid 5653] close(3) = 0
[pid 5653] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5653] memfd_create("syzkaller", 0) = 3
[pid 5653] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5653] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5653] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5653] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5653] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5653] close(3) = 0
[pid 5653] mkdir("./file0", 0777) = 0
[ 166.174805][ T5653] loop0: detected capacity change from 0 to 4096
[ 166.191029][ T5653] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 166.199104][ T5653] NILFS (loop0): trying rollback from an earlier position
[ 166.217840][ T5653] NILFS (loop0): recovery complete
[pid 5653] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5653] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5653] chdir("./file0") = 0
[pid 5653] ioctl(4, LOOP_CLR_FD) = 0
[pid 5653] close(4) = 0
[pid 5653] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5653] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 166.224219][ T5654] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 166.238813][ T27] audit: type=1800 audit(1676306853.998:294): pid=5653 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5653] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5653] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5653] exit_group(0) = ?
[pid 5653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5653, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./292", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./292", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./292/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./292/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./292/binderfs") = 0
umount2("./292/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./292/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./292/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./292/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./292/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./292/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./292") = 0
mkdir("./293", 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=0x555555db65d0) = 5655
./strace-static-x86_64: Process 5655 attached
[pid 5655] chdir("./293") = 0
[pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5655] setpgid(0, 0) = 0
[pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5655] write(3, "1000", 4) = 4
[pid 5655] close(3) = 0
[pid 5655] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5655] memfd_create("syzkaller", 0) = 3
[pid 5655] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5655] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5655] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5655] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5655] close(3) = 0
[pid 5655] mkdir("./file0", 0777) = 0
[ 166.544579][ T5655] loop0: detected capacity change from 0 to 4096
[ 166.563699][ T5655] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 166.571903][ T5655] NILFS (loop0): trying rollback from an earlier position
[ 166.588756][ T5655] NILFS (loop0): recovery complete
[pid 5655] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5655] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5655] chdir("./file0") = 0
[pid 5655] ioctl(4, LOOP_CLR_FD) = 0
[pid 5655] close(4) = 0
[pid 5655] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5655] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 166.594975][ T5656] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 166.601251][ T27] audit: type=1800 audit(1676306854.358:295): pid=5655 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5655] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5655] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5655] exit_group(0) = ?
[pid 5655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5655, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./293", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./293", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./293/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./293/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./293/binderfs") = 0
umount2("./293/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./293/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./293/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./293/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./293/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./293/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./293") = 0
mkdir("./294", 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=0x555555db65d0) = 5657
./strace-static-x86_64: Process 5657 attached
[pid 5657] chdir("./294") = 0
[pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5657] setpgid(0, 0) = 0
[pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5657] write(3, "1000", 4) = 4
[pid 5657] close(3) = 0
[pid 5657] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5657] memfd_create("syzkaller", 0) = 3
[pid 5657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5657] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5657] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5657] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5657] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5657] close(3) = 0
[pid 5657] mkdir("./file0", 0777) = 0
[ 166.913731][ T5657] loop0: detected capacity change from 0 to 4096
[ 166.933182][ T5657] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 166.941576][ T5657] NILFS (loop0): trying rollback from an earlier position
[ 166.956212][ T5657] NILFS (loop0): recovery complete
[pid 5657] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5657] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5657] chdir("./file0") = 0
[pid 5657] ioctl(4, LOOP_CLR_FD) = 0
[pid 5657] close(4) = 0
[pid 5657] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5657] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 166.962317][ T5658] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 166.968621][ T27] audit: type=1800 audit(1676306854.728:296): pid=5657 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5657] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5657] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5657] exit_group(0) = ?
[pid 5657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5657, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./294", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./294", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./294/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./294/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./294/binderfs") = 0
umount2("./294/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./294/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./294/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./294/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./294/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./294/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./294") = 0
mkdir("./295", 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=0x555555db65d0) = 5659
./strace-static-x86_64: Process 5659 attached
[pid 5659] chdir("./295") = 0
[pid 5659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5659] setpgid(0, 0) = 0
[pid 5659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5659] write(3, "1000", 4) = 4
[pid 5659] close(3) = 0
[pid 5659] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5659] memfd_create("syzkaller", 0) = 3
[pid 5659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5659] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5659] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5659] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5659] close(3) = 0
[pid 5659] mkdir("./file0", 0777) = 0
[ 167.291816][ T5659] loop0: detected capacity change from 0 to 4096
[ 167.310869][ T5659] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 167.318969][ T5659] NILFS (loop0): trying rollback from an earlier position
[ 167.334856][ T5659] NILFS (loop0): recovery complete
[pid 5659] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5659] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5659] chdir("./file0") = 0
[pid 5659] ioctl(4, LOOP_CLR_FD) = 0
[pid 5659] close(4) = 0
[pid 5659] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5659] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 167.341249][ T5660] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 167.362244][ T27] audit: type=1800 audit(1676306855.118:297): pid=5659 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5659] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5659] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5659] exit_group(0) = ?
[pid 5659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5659, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./295", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./295", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./295/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./295/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./295/binderfs") = 0
umount2("./295/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./295/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./295/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./295/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./295/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./295/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./295") = 0
mkdir("./296", 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=0x555555db65d0) = 5661
./strace-static-x86_64: Process 5661 attached
[pid 5661] chdir("./296") = 0
[pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5661] setpgid(0, 0) = 0
[pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5661] write(3, "1000", 4) = 4
[pid 5661] close(3) = 0
[pid 5661] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5661] memfd_create("syzkaller", 0) = 3
[pid 5661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5661] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5661] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5661] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5661] close(3) = 0
[pid 5661] mkdir("./file0", 0777) = 0
[ 167.666056][ T5661] loop0: detected capacity change from 0 to 4096
[ 167.683943][ T5661] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 167.692036][ T5661] NILFS (loop0): trying rollback from an earlier position
[ 167.706391][ T5661] NILFS (loop0): recovery complete
[pid 5661] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5661] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5661] chdir("./file0") = 0
[pid 5661] ioctl(4, LOOP_CLR_FD) = 0
[pid 5661] close(4) = 0
[pid 5661] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5661] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 167.712821][ T5662] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 167.738268][ T27] audit: type=1800 audit(1676306855.498:298): pid=5661 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5661] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5661] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5661] exit_group(0) = ?
[pid 5661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5661, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./296", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./296", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./296/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./296/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./296/binderfs") = 0
umount2("./296/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./296/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./296/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./296/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./296/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./296/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./296") = 0
mkdir("./297", 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 5663 attached
, child_tidptr=0x555555db65d0) = 5663
[pid 5663] chdir("./297") = 0
[pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5663] setpgid(0, 0) = 0
[pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5663] write(3, "1000", 4) = 4
[pid 5663] close(3) = 0
[pid 5663] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5663] memfd_create("syzkaller", 0) = 3
[pid 5663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5663] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5663] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5663] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5663] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5663] close(3) = 0
[pid 5663] mkdir("./file0", 0777) = 0
[ 168.041313][ T5663] loop0: detected capacity change from 0 to 4096
[ 168.059999][ T5663] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 168.068137][ T5663] NILFS (loop0): trying rollback from an earlier position
[ 168.083085][ T5663] NILFS (loop0): recovery complete
[pid 5663] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5663] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5663] chdir("./file0") = 0
[pid 5663] ioctl(4, LOOP_CLR_FD) = 0
[pid 5663] close(4) = 0
[pid 5663] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5663] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 168.089387][ T5664] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 168.106245][ T27] audit: type=1800 audit(1676306855.858:299): pid=5663 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5663] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5663] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5663] exit_group(0) = ?
[pid 5663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5663, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./297", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./297", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./297/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./297/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./297/binderfs") = 0
umount2("./297/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./297/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./297/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./297/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./297/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./297/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./297") = 0
mkdir("./298", 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=0x555555db65d0) = 5665
./strace-static-x86_64: Process 5665 attached
[pid 5665] chdir("./298") = 0
[pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5665] setpgid(0, 0) = 0
[pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5665] write(3, "1000", 4) = 4
[pid 5665] close(3) = 0
[pid 5665] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5665] memfd_create("syzkaller", 0) = 3
[pid 5665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5665] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5665] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5665] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5665] close(3) = 0
[pid 5665] mkdir("./file0", 0777) = 0
[pid 5665] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5665] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 168.436312][ T5665] loop0: detected capacity change from 0 to 4096
[ 168.455385][ T5665] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 168.463728][ T5665] NILFS (loop0): trying rollback from an earlier position
[ 168.477458][ T5665] NILFS (loop0): recovery complete
[pid 5665] chdir("./file0") = 0
[pid 5665] ioctl(4, LOOP_CLR_FD) = 0
[pid 5665] close(4) = 0
[pid 5665] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5665] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 168.483682][ T5666] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5665] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5665] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5665] exit_group(0) = ?
[pid 5665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5665, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./298", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./298", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./298/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./298/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./298/binderfs") = 0
umount2("./298/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./298/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./298/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./298/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./298/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./298/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./298") = 0
mkdir("./299", 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=0x555555db65d0) = 5667
./strace-static-x86_64: Process 5667 attached
[pid 5667] chdir("./299") = 0
[pid 5667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5667] setpgid(0, 0) = 0
[pid 5667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5667] write(3, "1000", 4) = 4
[pid 5667] close(3) = 0
[pid 5667] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5667] memfd_create("syzkaller", 0) = 3
[pid 5667] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5667] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5667] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5667] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5667] close(3) = 0
[pid 5667] mkdir("./file0", 0777) = 0
[ 168.755380][ T5667] loop0: detected capacity change from 0 to 4096
[ 168.772085][ T5667] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 168.780180][ T5667] NILFS (loop0): trying rollback from an earlier position
[ 168.794378][ T5667] NILFS (loop0): recovery complete
[pid 5667] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5667] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5667] chdir("./file0") = 0
[pid 5667] ioctl(4, LOOP_CLR_FD) = 0
[pid 5667] close(4) = 0
[pid 5667] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5667] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 168.800457][ T5668] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5667] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5667] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5667] exit_group(0) = ?
[pid 5667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5667, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./299", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./299", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./299/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./299/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./299/binderfs") = 0
umount2("./299/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./299/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./299/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./299/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./299/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./299/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./299") = 0
mkdir("./300", 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=0x555555db65d0) = 5669
./strace-static-x86_64: Process 5669 attached
[pid 5669] chdir("./300") = 0
[pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5669] setpgid(0, 0) = 0
[pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5669] write(3, "1000", 4) = 4
[pid 5669] close(3) = 0
[pid 5669] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5669] memfd_create("syzkaller", 0) = 3
[pid 5669] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5669] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5669] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5669] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5669] close(3) = 0
[pid 5669] mkdir("./file0", 0777) = 0
[ 169.068883][ T5669] loop0: detected capacity change from 0 to 4096
[ 169.083987][ T5669] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 169.092104][ T5669] NILFS (loop0): trying rollback from an earlier position
[ 169.106078][ T5669] NILFS (loop0): recovery complete
[pid 5669] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5669] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5669] chdir("./file0") = 0
[pid 5669] ioctl(4, LOOP_CLR_FD) = 0
[pid 5669] close(4) = 0
[pid 5669] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5669] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 169.112069][ T5670] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5669] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5669] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5669] exit_group(0) = ?
[pid 5669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5669, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./300", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./300", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./300/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./300/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./300/binderfs") = 0
umount2("./300/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./300/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./300/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./300/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./300/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./300/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./300") = 0
mkdir("./301", 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=0x555555db65d0) = 5671
./strace-static-x86_64: Process 5671 attached
[pid 5671] chdir("./301") = 0
[pid 5671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5671] setpgid(0, 0) = 0
[pid 5671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5671] write(3, "1000", 4) = 4
[pid 5671] close(3) = 0
[pid 5671] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5671] memfd_create("syzkaller", 0) = 3
[pid 5671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5671] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5671] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5671] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5671] close(3) = 0
[pid 5671] mkdir("./file0", 0777) = 0
[ 169.394279][ T5671] loop0: detected capacity change from 0 to 4096
[ 169.411532][ T5671] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 169.419584][ T5671] NILFS (loop0): trying rollback from an earlier position
[ 169.433604][ T5671] NILFS (loop0): recovery complete
[pid 5671] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5671] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5671] chdir("./file0") = 0
[pid 5671] ioctl(4, LOOP_CLR_FD) = 0
[pid 5671] close(4) = 0
[pid 5671] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5671] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 169.439505][ T5672] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5671] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5671] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5671] exit_group(0) = ?
[pid 5671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5671, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./301", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./301", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./301/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./301/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./301/binderfs") = 0
umount2("./301/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./301/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./301/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./301/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./301/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./301/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./301") = 0
mkdir("./302", 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=0x555555db65d0) = 5673
./strace-static-x86_64: Process 5673 attached
[pid 5673] chdir("./302") = 0
[pid 5673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5673] setpgid(0, 0) = 0
[pid 5673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5673] write(3, "1000", 4) = 4
[pid 5673] close(3) = 0
[pid 5673] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5673] memfd_create("syzkaller", 0) = 3
[pid 5673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5673] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5673] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5673] close(3) = 0
[pid 5673] mkdir("./file0", 0777) = 0
[ 169.727566][ T5673] loop0: detected capacity change from 0 to 4096
[ 169.742609][ T5673] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 169.750692][ T5673] NILFS (loop0): trying rollback from an earlier position
[ 169.764403][ T5673] NILFS (loop0): recovery complete
[pid 5673] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5673] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5673] chdir("./file0") = 0
[pid 5673] ioctl(4, LOOP_CLR_FD) = 0
[pid 5673] close(4) = 0
[pid 5673] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5673] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 169.770349][ T5674] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 169.786200][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 169.786212][ T27] audit: type=1800 audit(1676306857.538:304): pid=5673 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5673] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5673] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5673] exit_group(0) = ?
[pid 5673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5673, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./302", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./302", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./302/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./302/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./302/binderfs") = 0
umount2("./302/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./302/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./302/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./302/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./302/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./302/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./302") = 0
mkdir("./303", 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=0x555555db65d0) = 5675
./strace-static-x86_64: Process 5675 attached
[pid 5675] chdir("./303") = 0
[pid 5675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5675] setpgid(0, 0) = 0
[pid 5675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5675] write(3, "1000", 4) = 4
[pid 5675] close(3) = 0
[pid 5675] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5675] memfd_create("syzkaller", 0) = 3
[pid 5675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5675] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5675] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5675] close(3) = 0
[pid 5675] mkdir("./file0", 0777) = 0
[ 170.064829][ T5675] loop0: detected capacity change from 0 to 4096
[ 170.081373][ T5675] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 170.089443][ T5675] NILFS (loop0): trying rollback from an earlier position
[ 170.103185][ T5675] NILFS (loop0): recovery complete
[pid 5675] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5675] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5675] chdir("./file0") = 0
[pid 5675] ioctl(4, LOOP_CLR_FD) = 0
[pid 5675] close(4) = 0
[pid 5675] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5675] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 170.109267][ T5676] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 170.114783][ T27] audit: type=1800 audit(1676306857.878:305): pid=5675 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5675] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5675] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5675] exit_group(0) = ?
[pid 5675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5675, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./303", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./303", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./303/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./303/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./303/binderfs") = 0
umount2("./303/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./303/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./303/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./303/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./303/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./303/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./303") = 0
mkdir("./304", 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=0x555555db65d0) = 5677
./strace-static-x86_64: Process 5677 attached
[pid 5677] chdir("./304") = 0
[pid 5677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5677] setpgid(0, 0) = 0
[pid 5677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5677] write(3, "1000", 4) = 4
[pid 5677] close(3) = 0
[pid 5677] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5677] memfd_create("syzkaller", 0) = 3
[pid 5677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5677] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5677] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5677] close(3) = 0
[pid 5677] mkdir("./file0", 0777) = 0
[ 170.426999][ T5677] loop0: detected capacity change from 0 to 4096
[ 170.443325][ T5677] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 170.451425][ T5677] NILFS (loop0): trying rollback from an earlier position
[ 170.465642][ T5677] NILFS (loop0): recovery complete
[pid 5677] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5677] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5677] chdir("./file0") = 0
[pid 5677] ioctl(4, LOOP_CLR_FD) = 0
[pid 5677] close(4) = 0
[pid 5677] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5677] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 170.471528][ T5678] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 170.489650][ T27] audit: type=1800 audit(1676306858.248:306): pid=5677 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5677] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5677] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5677] exit_group(0) = ?
[pid 5677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5677, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./304", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./304", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./304/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./304/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./304/binderfs") = 0
umount2("./304/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./304/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./304/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./304/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./304/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./304/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./304") = 0
mkdir("./305", 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 5679 attached
, child_tidptr=0x555555db65d0) = 5679
[pid 5679] chdir("./305") = 0
[pid 5679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5679] setpgid(0, 0) = 0
[pid 5679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5679] write(3, "1000", 4) = 4
[pid 5679] close(3) = 0
[pid 5679] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5679] memfd_create("syzkaller", 0) = 3
[pid 5679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5679] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5679] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5679] close(3) = 0
[pid 5679] mkdir("./file0", 0777) = 0
[ 170.790636][ T5679] loop0: detected capacity change from 0 to 4096
[ 170.806775][ T5679] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 170.814823][ T5679] NILFS (loop0): trying rollback from an earlier position
[ 170.829693][ T5679] NILFS (loop0): recovery complete
[pid 5679] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5679] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5679] chdir("./file0") = 0
[pid 5679] ioctl(4, LOOP_CLR_FD) = 0
[pid 5679] close(4) = 0
[pid 5679] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5679] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 170.836325][ T5680] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 170.853535][ T27] audit: type=1800 audit(1676306858.608:307): pid=5679 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5679] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5679] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5679] exit_group(0) = ?
[pid 5679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5679, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./305", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./305", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./305/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./305/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./305/binderfs") = 0
umount2("./305/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./305/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./305/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./305/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./305/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./305/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./305") = 0
mkdir("./306", 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=0x555555db65d0) = 5681
./strace-static-x86_64: Process 5681 attached
[pid 5681] chdir("./306") = 0
[pid 5681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5681] setpgid(0, 0) = 0
[pid 5681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5681] write(3, "1000", 4) = 4
[pid 5681] close(3) = 0
[pid 5681] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5681] memfd_create("syzkaller", 0) = 3
[pid 5681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5681] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5681] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5681] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5681] close(3) = 0
[pid 5681] mkdir("./file0", 0777) = 0
[ 171.165333][ T5681] loop0: detected capacity change from 0 to 4096
[ 171.181085][ T5681] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 171.189230][ T5681] NILFS (loop0): trying rollback from an earlier position
[ 171.202909][ T5681] NILFS (loop0): recovery complete
[pid 5681] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5681] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5681] chdir("./file0") = 0
[pid 5681] ioctl(4, LOOP_CLR_FD) = 0
[pid 5681] close(4) = 0
[pid 5681] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5681] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 171.208959][ T5682] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 171.226213][ T27] audit: type=1800 audit(1676306858.978:308): pid=5681 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5681] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5681] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5681] exit_group(0) = ?
[pid 5681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5681, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./306", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./306", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./306/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./306/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./306/binderfs") = 0
umount2("./306/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./306/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./306/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./306/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./306/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./306/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./306") = 0
mkdir("./307", 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=0x555555db65d0) = 5683
./strace-static-x86_64: Process 5683 attached
[pid 5683] chdir("./307") = 0
[pid 5683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5683] setpgid(0, 0) = 0
[pid 5683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5683] write(3, "1000", 4) = 4
[pid 5683] close(3) = 0
[pid 5683] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5683] memfd_create("syzkaller", 0) = 3
[pid 5683] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5683] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5683] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5683] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5683] close(3) = 0
[pid 5683] mkdir("./file0", 0777) = 0
[ 171.507824][ T5683] loop0: detected capacity change from 0 to 4096
[ 171.522752][ T5683] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 171.530908][ T5683] NILFS (loop0): trying rollback from an earlier position
[ 171.546342][ T5683] NILFS (loop0): recovery complete
[pid 5683] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5683] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5683] chdir("./file0") = 0
[pid 5683] ioctl(4, LOOP_CLR_FD) = 0
[pid 5683] close(4) = 0
[pid 5683] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5683] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 171.552342][ T5684] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 171.557363][ T27] audit: type=1800 audit(1676306859.318:309): pid=5683 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5683] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5683] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5683] exit_group(0) = ?
[pid 5683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5683, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./307", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./307", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./307/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./307/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./307/binderfs") = 0
umount2("./307/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./307/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./307/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./307/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./307/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./307/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./307") = 0
mkdir("./308", 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=0x555555db65d0) = 5685
./strace-static-x86_64: Process 5685 attached
[pid 5685] chdir("./308") = 0
[pid 5685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5685] setpgid(0, 0) = 0
[pid 5685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5685] write(3, "1000", 4) = 4
[pid 5685] close(3) = 0
[pid 5685] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5685] memfd_create("syzkaller", 0) = 3
[pid 5685] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5685] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5685] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5685] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5685] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5685] close(3) = 0
[pid 5685] mkdir("./file0", 0777) = 0
[ 171.838208][ T5685] loop0: detected capacity change from 0 to 4096
[ 171.854644][ T5685] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 171.862855][ T5685] NILFS (loop0): trying rollback from an earlier position
[ 171.876361][ T5685] NILFS (loop0): recovery complete
[pid 5685] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5685] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5685] chdir("./file0") = 0
[pid 5685] ioctl(4, LOOP_CLR_FD) = 0
[pid 5685] close(4) = 0
[pid 5685] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5685] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 171.882249][ T5686] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 171.886668][ T27] audit: type=1800 audit(1676306859.648:310): pid=5685 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5685] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5685] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5685] exit_group(0) = ?
[pid 5685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5685, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./308", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./308", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./308/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./308/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./308/binderfs") = 0
umount2("./308/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./308/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./308/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./308/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./308/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./308/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./308") = 0
mkdir("./309", 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=0x555555db65d0) = 5687
./strace-static-x86_64: Process 5687 attached
[pid 5687] chdir("./309") = 0
[pid 5687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5687] setpgid(0, 0) = 0
[pid 5687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5687] write(3, "1000", 4) = 4
[pid 5687] close(3) = 0
[pid 5687] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5687] memfd_create("syzkaller", 0) = 3
[pid 5687] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5687] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5687] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5687] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5687] close(3) = 0
[pid 5687] mkdir("./file0", 0777) = 0
[pid 5687] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5687] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5687] chdir("./file0") = 0
[pid 5687] ioctl(4, LOOP_CLR_FD) = 0
[pid 5687] close(4) = 0
[ 172.179070][ T5687] loop0: detected capacity change from 0 to 4096
[ 172.194942][ T5687] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 172.203240][ T5687] NILFS (loop0): trying rollback from an earlier position
[ 172.217713][ T5687] NILFS (loop0): recovery complete
[pid 5687] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5687] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 172.224124][ T5688] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 172.230800][ T27] audit: type=1800 audit(1676306859.988:311): pid=5687 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5687] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5687] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5687] exit_group(0) = ?
[pid 5687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5687, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./309", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./309", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./309/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./309/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./309/binderfs") = 0
umount2("./309/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./309/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./309/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./309/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./309/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./309/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./309") = 0
mkdir("./310", 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=0x555555db65d0) = 5689
./strace-static-x86_64: Process 5689 attached
[pid 5689] chdir("./310") = 0
[pid 5689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5689] setpgid(0, 0) = 0
[pid 5689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5689] write(3, "1000", 4) = 4
[pid 5689] close(3) = 0
[pid 5689] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5689] memfd_create("syzkaller", 0) = 3
[pid 5689] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5689] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5689] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5689] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5689] close(3) = 0
[pid 5689] mkdir("./file0", 0777) = 0
[ 172.519187][ T5689] loop0: detected capacity change from 0 to 4096
[ 172.536720][ T5689] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 172.544914][ T5689] NILFS (loop0): trying rollback from an earlier position
[ 172.559464][ T5689] NILFS (loop0): recovery complete
[pid 5689] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5689] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5689] chdir("./file0") = 0
[pid 5689] ioctl(4, LOOP_CLR_FD) = 0
[pid 5689] close(4) = 0
[pid 5689] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5689] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 172.565844][ T5690] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 172.581649][ T27] audit: type=1800 audit(1676306860.338:312): pid=5689 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5689] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5689] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5689] exit_group(0) = ?
[pid 5689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5689, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./310", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./310", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./310/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./310/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./310/binderfs") = 0
umount2("./310/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./310/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./310/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./310/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./310/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./310/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./310") = 0
mkdir("./311", 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=0x555555db65d0) = 5691
./strace-static-x86_64: Process 5691 attached
[pid 5691] chdir("./311") = 0
[pid 5691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5691] setpgid(0, 0) = 0
[pid 5691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5691] write(3, "1000", 4) = 4
[pid 5691] close(3) = 0
[pid 5691] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5691] memfd_create("syzkaller", 0) = 3
[pid 5691] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5691] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5691] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5691] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5691] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5691] close(3) = 0
[pid 5691] mkdir("./file0", 0777) = 0
[pid 5691] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5691] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 172.859413][ T5691] loop0: detected capacity change from 0 to 4096
[ 172.877587][ T5691] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 172.885606][ T5691] NILFS (loop0): trying rollback from an earlier position
[ 172.899415][ T5691] NILFS (loop0): recovery complete
[pid 5691] chdir("./file0") = 0
[pid 5691] ioctl(4, LOOP_CLR_FD) = 0
[pid 5691] close(4) = 0
[pid 5691] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5691] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 172.905755][ T5692] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 172.919206][ T27] audit: type=1800 audit(1676306860.678:313): pid=5691 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5691] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5691] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5691] exit_group(0) = ?
[pid 5691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5691, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./311", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./311", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./311/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./311/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./311/binderfs") = 0
umount2("./311/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./311/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./311/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./311/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./311/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./311/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./311") = 0
mkdir("./312", 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=0x555555db65d0) = 5693
./strace-static-x86_64: Process 5693 attached
[pid 5693] chdir("./312") = 0
[pid 5693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5693] setpgid(0, 0) = 0
[pid 5693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5693] write(3, "1000", 4) = 4
[pid 5693] close(3) = 0
[pid 5693] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5693] memfd_create("syzkaller", 0) = 3
[pid 5693] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5693] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5693] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5693] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5693] close(3) = 0
[pid 5693] mkdir("./file0", 0777) = 0
[ 173.213253][ T5693] loop0: detected capacity change from 0 to 4096
[ 173.230069][ T5693] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 173.238140][ T5693] NILFS (loop0): trying rollback from an earlier position
[ 173.251146][ T5693] NILFS (loop0): recovery complete
[pid 5693] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5693] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5693] chdir("./file0") = 0
[pid 5693] ioctl(4, LOOP_CLR_FD) = 0
[pid 5693] close(4) = 0
[pid 5693] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5693] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 173.256970][ T5694] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5693] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5693] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5693] exit_group(0) = ?
[pid 5693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5693, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./312", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./312", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./312/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./312/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./312/binderfs") = 0
umount2("./312/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./312/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./312/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./312/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./312/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./312/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./312") = 0
mkdir("./313", 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=0x555555db65d0) = 5695
./strace-static-x86_64: Process 5695 attached
[pid 5695] chdir("./313") = 0
[pid 5695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5695] setpgid(0, 0) = 0
[pid 5695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5695] write(3, "1000", 4) = 4
[pid 5695] close(3) = 0
[pid 5695] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5695] memfd_create("syzkaller", 0) = 3
[pid 5695] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5695] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5695] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5695] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5695] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5695] close(3) = 0
[pid 5695] mkdir("./file0", 0777) = 0
[ 173.537831][ T5695] loop0: detected capacity change from 0 to 4096
[ 173.553666][ T5695] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 173.561760][ T5695] NILFS (loop0): trying rollback from an earlier position
[ 173.575697][ T5695] NILFS (loop0): recovery complete
[pid 5695] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5695] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5695] chdir("./file0") = 0
[pid 5695] ioctl(4, LOOP_CLR_FD) = 0
[pid 5695] close(4) = 0
[pid 5695] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5695] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 173.581620][ T5696] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5695] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5695] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5695] exit_group(0) = ?
[pid 5695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./313", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./313", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./313/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./313/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./313/binderfs") = 0
umount2("./313/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./313/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./313/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./313/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./313/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./313/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./313") = 0
mkdir("./314", 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 5697 attached
, child_tidptr=0x555555db65d0) = 5697
[pid 5697] chdir("./314") = 0
[pid 5697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5697] setpgid(0, 0) = 0
[pid 5697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5697] write(3, "1000", 4) = 4
[pid 5697] close(3) = 0
[pid 5697] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5697] memfd_create("syzkaller", 0) = 3
[pid 5697] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5697] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5697] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5697] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5697] close(3) = 0
[pid 5697] mkdir("./file0", 0777) = 0
[ 173.882408][ T5697] loop0: detected capacity change from 0 to 4096
[ 173.898557][ T5697] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 173.906615][ T5697] NILFS (loop0): trying rollback from an earlier position
[ 173.920439][ T5697] NILFS (loop0): recovery complete
[pid 5697] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5697] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5697] chdir("./file0") = 0
[pid 5697] ioctl(4, LOOP_CLR_FD) = 0
[pid 5697] close(4) = 0
[pid 5697] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5697] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 173.926850][ T5698] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5697] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5697] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5697] exit_group(0) = ?
[pid 5697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5697, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./314", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./314", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./314/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./314/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./314/binderfs") = 0
umount2("./314/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./314/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./314/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./314/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./314/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./314/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./314") = 0
mkdir("./315", 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=0x555555db65d0) = 5699
./strace-static-x86_64: Process 5699 attached
[pid 5699] chdir("./315") = 0
[pid 5699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5699] setpgid(0, 0) = 0
[pid 5699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5699] write(3, "1000", 4) = 4
[pid 5699] close(3) = 0
[pid 5699] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5699] memfd_create("syzkaller", 0) = 3
[pid 5699] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5699] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5699] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5699] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5699] close(3) = 0
[pid 5699] mkdir("./file0", 0777) = 0
[pid 5699] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 174.216972][ T5699] loop0: detected capacity change from 0 to 4096
[ 174.233914][ T5699] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 174.242004][ T5699] NILFS (loop0): trying rollback from an earlier position
[ 174.258640][ T5699] NILFS (loop0): recovery complete
[pid 5699] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5699] chdir("./file0") = 0
[pid 5699] ioctl(4, LOOP_CLR_FD) = 0
[pid 5699] close(4) = 0
[pid 5699] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5699] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 174.264779][ T5700] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5699] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5699] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5699] exit_group(0) = ?
[pid 5699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5699, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./315", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./315", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./315/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./315/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./315/binderfs") = 0
umount2("./315/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./315/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./315/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./315/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./315/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./315/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./315") = 0
mkdir("./316", 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=0x555555db65d0) = 5701
./strace-static-x86_64: Process 5701 attached
[pid 5701] chdir("./316") = 0
[pid 5701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5701] setpgid(0, 0) = 0
[pid 5701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5701] write(3, "1000", 4) = 4
[pid 5701] close(3) = 0
[pid 5701] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5701] memfd_create("syzkaller", 0) = 3
[pid 5701] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5701] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5701] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5701] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5701] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5701] close(3) = 0
[pid 5701] mkdir("./file0", 0777) = 0
[ 174.559757][ T5701] loop0: detected capacity change from 0 to 4096
[ 174.576024][ T5701] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 174.584219][ T5701] NILFS (loop0): trying rollback from an earlier position
[ 174.598660][ T5701] NILFS (loop0): recovery complete
[pid 5701] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5701] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5701] chdir("./file0") = 0
[pid 5701] ioctl(4, LOOP_CLR_FD) = 0
[pid 5701] close(4) = 0
[pid 5701] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5701] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 174.604708][ T5702] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5701] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5701] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5701] exit_group(0) = ?
[pid 5701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./316", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./316", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./316/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./316/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./316/binderfs") = 0
umount2("./316/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./316/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./316/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./316/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./316/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./316/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./316") = 0
mkdir("./317", 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=0x555555db65d0) = 5703
./strace-static-x86_64: Process 5703 attached
[pid 5703] chdir("./317") = 0
[pid 5703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5703] setpgid(0, 0) = 0
[pid 5703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5703] write(3, "1000", 4) = 4
[pid 5703] close(3) = 0
[pid 5703] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5703] memfd_create("syzkaller", 0) = 3
[pid 5703] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5703] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5703] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5703] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5703] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5703] close(3) = 0
[pid 5703] mkdir("./file0", 0777) = 0
[ 174.897371][ T5703] loop0: detected capacity change from 0 to 4096
[ 174.912590][ T5703] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 174.920715][ T5703] NILFS (loop0): trying rollback from an earlier position
[ 174.934683][ T5703] NILFS (loop0): recovery complete
[pid 5703] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5703] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5703] chdir("./file0") = 0
[pid 5703] ioctl(4, LOOP_CLR_FD) = 0
[pid 5703] close(4) = 0
[pid 5703] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5703] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 174.940438][ T5704] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 174.956374][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 174.956386][ T27] audit: type=1800 audit(1676306862.718:319): pid=5703 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5703] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5703] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5703] exit_group(0) = ?
[pid 5703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./317", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./317", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./317/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./317/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./317/binderfs") = 0
umount2("./317/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./317/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./317/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./317/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./317/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./317/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./317") = 0
mkdir("./318", 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=0x555555db65d0) = 5705
./strace-static-x86_64: Process 5705 attached
[pid 5705] chdir("./318") = 0
[pid 5705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5705] setpgid(0, 0) = 0
[pid 5705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5705] write(3, "1000", 4) = 4
[pid 5705] close(3) = 0
[pid 5705] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5705] memfd_create("syzkaller", 0) = 3
[pid 5705] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5705] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5705] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5705] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5705] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5705] close(3) = 0
[pid 5705] mkdir("./file0", 0777) = 0
[ 175.239990][ T5705] loop0: detected capacity change from 0 to 4096
[ 175.255907][ T5705] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 175.264060][ T5705] NILFS (loop0): trying rollback from an earlier position
[ 175.277587][ T5705] NILFS (loop0): recovery complete
[pid 5705] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5705] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5705] chdir("./file0") = 0
[pid 5705] ioctl(4, LOOP_CLR_FD) = 0
[pid 5705] close(4) = 0
[pid 5705] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5705] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 175.283382][ T5706] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 175.306198][ T27] audit: type=1800 audit(1676306863.058:320): pid=5705 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5705] sendfile(4, 5, NULL, 2147538701) = 65536
[pid 5705] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5705] exit_group(0) = ?
[pid 5705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5705, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./318", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./318", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./318/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./318/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./318/binderfs") = 0
umount2("./318/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./318/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./318/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./318/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./318/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[ 175.336353][ T5706] NILFS (loop0): nilfs_direct_assign (ino=6): invalid key: 130
[ 175.344338][ T5706] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=6)
[ 175.354751][ T5706] Remounting filesystem read-only
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./318/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./318") = 0
mkdir("./319", 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=0x555555db65d0) = 5707
./strace-static-x86_64: Process 5707 attached
[pid 5707] chdir("./319") = 0
[pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5707] setpgid(0, 0) = 0
[pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5707] write(3, "1000", 4) = 4
[pid 5707] close(3) = 0
[pid 5707] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5707] memfd_create("syzkaller", 0) = 3
[pid 5707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5707] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5707] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5707] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5707] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5707] close(3) = 0
[pid 5707] mkdir("./file0", 0777) = 0
[ 175.453131][ T5707] loop0: detected capacity change from 0 to 4096
[ 175.469908][ T5707] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 175.478003][ T5707] NILFS (loop0): trying rollback from an earlier position
[ 175.491031][ T5707] NILFS (loop0): recovery complete
[pid 5707] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5707] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5707] chdir("./file0") = 0
[pid 5707] ioctl(4, LOOP_CLR_FD) = 0
[pid 5707] close(4) = 0
[pid 5707] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5707] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 175.496797][ T5708] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 175.509751][ T27] audit: type=1800 audit(1676306863.268:321): pid=5707 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5707] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5707] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5707] exit_group(0) = ?
[pid 5707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./319", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./319", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./319/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./319/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./319/binderfs") = 0
umount2("./319/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./319/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./319/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./319/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./319/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./319/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./319") = 0
mkdir("./320", 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=0x555555db65d0) = 5709
./strace-static-x86_64: Process 5709 attached
[pid 5709] chdir("./320") = 0
[pid 5709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5709] setpgid(0, 0) = 0
[pid 5709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5709] write(3, "1000", 4) = 4
[pid 5709] close(3) = 0
[pid 5709] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5709] memfd_create("syzkaller", 0) = 3
[pid 5709] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5709] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5709] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5709] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5709] close(3) = 0
[pid 5709] mkdir("./file0", 0777) = 0
[pid 5709] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 175.794703][ T5709] loop0: detected capacity change from 0 to 4096
[ 175.812999][ T5709] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 175.821124][ T5709] NILFS (loop0): trying rollback from an earlier position
[ 175.834223][ T5709] NILFS (loop0): recovery complete
[pid 5709] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5709] chdir("./file0") = 0
[pid 5709] ioctl(4, LOOP_CLR_FD) = 0
[pid 5709] close(4) = 0
[pid 5709] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5709] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 175.841180][ T5710] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 175.854590][ T27] audit: type=1800 audit(1676306863.618:322): pid=5709 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5709] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5709] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5709] exit_group(0) = ?
[pid 5709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5709, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./320", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./320", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./320/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./320/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./320/binderfs") = 0
umount2("./320/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./320/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./320/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./320/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./320/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./320/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./320") = 0
mkdir("./321", 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=0x555555db65d0) = 5711
./strace-static-x86_64: Process 5711 attached
[pid 5711] chdir("./321") = 0
[pid 5711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5711] setpgid(0, 0) = 0
[pid 5711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5711] write(3, "1000", 4) = 4
[pid 5711] close(3) = 0
[pid 5711] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5711] memfd_create("syzkaller", 0) = 3
[pid 5711] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5711] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5711] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5711] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5711] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5711] close(3) = 0
[pid 5711] mkdir("./file0", 0777) = 0
[pid 5711] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5711] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5711] chdir("./file0") = 0
[pid 5711] ioctl(4, LOOP_CLR_FD) = 0
[ 176.148240][ T5711] loop0: detected capacity change from 0 to 4096
[ 176.165381][ T5711] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 176.173539][ T5711] NILFS (loop0): trying rollback from an earlier position
[ 176.186727][ T5711] NILFS (loop0): recovery complete
[pid 5711] close(4) = 0
[pid 5711] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5711] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 176.192779][ T5712] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 176.207460][ T27] audit: type=1800 audit(1676306863.968:323): pid=5711 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5711] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5711] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5711] exit_group(0) = ?
[pid 5711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5711, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./321", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./321", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./321/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./321/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./321/binderfs") = 0
umount2("./321/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./321/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./321/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./321/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./321/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./321/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./321") = 0
mkdir("./322", 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=0x555555db65d0) = 5713
./strace-static-x86_64: Process 5713 attached
[pid 5713] chdir("./322") = 0
[pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5713] setpgid(0, 0) = 0
[pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5713] write(3, "1000", 4) = 4
[pid 5713] close(3) = 0
[pid 5713] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5713] memfd_create("syzkaller", 0) = 3
[pid 5713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5713] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5713] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5713] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5713] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5713] close(3) = 0
[pid 5713] mkdir("./file0", 0777) = 0
[ 176.497306][ T5713] loop0: detected capacity change from 0 to 4096
[ 176.513131][ T5713] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 176.521195][ T5713] NILFS (loop0): trying rollback from an earlier position
[ 176.535174][ T5713] NILFS (loop0): recovery complete
[pid 5713] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5713] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5713] chdir("./file0") = 0
[pid 5713] ioctl(4, LOOP_CLR_FD) = 0
[pid 5713] close(4) = 0
[pid 5713] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5713] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 176.541668][ T5714] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 176.556068][ T27] audit: type=1800 audit(1676306864.318:324): pid=5713 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5713] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5713] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5713] exit_group(0) = ?
[pid 5713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./322", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./322", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./322/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./322/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./322/binderfs") = 0
umount2("./322/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./322/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./322/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./322/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./322/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./322/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./322") = 0
mkdir("./323", 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=0x555555db65d0) = 5715
./strace-static-x86_64: Process 5715 attached
[pid 5715] chdir("./323") = 0
[pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5715] setpgid(0, 0) = 0
[pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5715] write(3, "1000", 4) = 4
[pid 5715] close(3) = 0
[pid 5715] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5715] memfd_create("syzkaller", 0) = 3
[pid 5715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5715] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5715] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5715] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5715] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5715] close(3) = 0
[pid 5715] mkdir("./file0", 0777) = 0
[ 176.851063][ T5715] loop0: detected capacity change from 0 to 4096
[ 176.867685][ T5715] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 176.875759][ T5715] NILFS (loop0): trying rollback from an earlier position
[ 176.890569][ T5715] NILFS (loop0): recovery complete
[pid 5715] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5715] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5715] chdir("./file0") = 0
[pid 5715] ioctl(4, LOOP_CLR_FD) = 0
[pid 5715] close(4) = 0
[pid 5715] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5715] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 176.896517][ T5716] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 176.909872][ T27] audit: type=1800 audit(1676306864.668:325): pid=5715 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5715] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5715] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5715] exit_group(0) = ?
[pid 5715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./323", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./323", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./323/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./323/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./323/binderfs") = 0
umount2("./323/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./323/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./323/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./323/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./323/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./323/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./323") = 0
mkdir("./324", 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=0x555555db65d0) = 5717
./strace-static-x86_64: Process 5717 attached
[pid 5717] chdir("./324") = 0
[pid 5717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5717] setpgid(0, 0) = 0
[pid 5717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5717] write(3, "1000", 4) = 4
[pid 5717] close(3) = 0
[pid 5717] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5717] memfd_create("syzkaller", 0) = 3
[pid 5717] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5717] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5717] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5717] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5717] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5717] close(3) = 0
[pid 5717] mkdir("./file0", 0777) = 0
[ 177.203820][ T5717] loop0: detected capacity change from 0 to 4096
[ 177.218776][ T5717] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 177.226961][ T5717] NILFS (loop0): trying rollback from an earlier position
[ 177.240253][ T5717] NILFS (loop0): recovery complete
[pid 5717] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5717] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5717] chdir("./file0") = 0
[pid 5717] ioctl(4, LOOP_CLR_FD) = 0
[pid 5717] close(4) = 0
[pid 5717] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5717] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 177.245956][ T5718] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 177.266213][ T27] audit: type=1800 audit(1676306865.018:326): pid=5717 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5717] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5717] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5717] exit_group(0) = ?
[pid 5717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5717, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./324", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./324", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./324/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./324/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./324/binderfs") = 0
umount2("./324/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./324/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./324/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./324/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./324/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./324/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./324") = 0
mkdir("./325", 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=0x555555db65d0) = 5719
./strace-static-x86_64: Process 5719 attached
[pid 5719] chdir("./325") = 0
[pid 5719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5719] setpgid(0, 0) = 0
[pid 5719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5719] write(3, "1000", 4) = 4
[pid 5719] close(3) = 0
[pid 5719] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5719] memfd_create("syzkaller", 0) = 3
[pid 5719] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5719] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5719] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5719] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5719] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5719] close(3) = 0
[pid 5719] mkdir("./file0", 0777) = 0
[ 177.539886][ T5719] loop0: detected capacity change from 0 to 4096
[ 177.554789][ T5719] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 177.562827][ T5719] NILFS (loop0): trying rollback from an earlier position
[ 177.576076][ T5719] NILFS (loop0): recovery complete
[pid 5719] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5719] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5719] chdir("./file0") = 0
[pid 5719] ioctl(4, LOOP_CLR_FD) = 0
[pid 5719] close(4) = 0
[pid 5719] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5719] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 177.582170][ T5720] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 177.595828][ T27] audit: type=1800 audit(1676306865.358:327): pid=5719 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5719] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5719] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5719] exit_group(0) = ?
[pid 5719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5719, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./325", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./325", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./325/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./325/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./325/binderfs") = 0
umount2("./325/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./325/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./325/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./325/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./325/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./325/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./325") = 0
mkdir("./326", 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=0x555555db65d0) = 5721
./strace-static-x86_64: Process 5721 attached
[pid 5721] chdir("./326") = 0
[pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5721] setpgid(0, 0) = 0
[pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5721] write(3, "1000", 4) = 4
[pid 5721] close(3) = 0
[pid 5721] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5721] memfd_create("syzkaller", 0) = 3
[pid 5721] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5721] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5721] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5721] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5721] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5721] close(3) = 0
[pid 5721] mkdir("./file0", 0777) = 0
[ 177.881378][ T5721] loop0: detected capacity change from 0 to 4096
[ 177.899008][ T5721] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 177.907122][ T5721] NILFS (loop0): trying rollback from an earlier position
[ 177.921162][ T5721] NILFS (loop0): recovery complete
[pid 5721] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5721] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5721] chdir("./file0") = 0
[pid 5721] ioctl(4, LOOP_CLR_FD) = 0
[pid 5721] close(4) = 0
[pid 5721] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5721] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 177.927090][ T5722] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 177.941459][ T27] audit: type=1800 audit(1676306865.708:328): pid=5721 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5721] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5721] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5721] exit_group(0) = ?
[pid 5721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./326", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./326", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./326/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./326/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./326/binderfs") = 0
umount2("./326/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./326/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./326/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./326/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./326/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./326/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./326") = 0
mkdir("./327", 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=0x555555db65d0) = 5723
./strace-static-x86_64: Process 5723 attached
[pid 5723] chdir("./327") = 0
[pid 5723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5723] setpgid(0, 0) = 0
[pid 5723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5723] write(3, "1000", 4) = 4
[pid 5723] close(3) = 0
[pid 5723] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5723] memfd_create("syzkaller", 0) = 3
[pid 5723] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5723] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5723] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5723] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5723] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5723] close(3) = 0
[pid 5723] mkdir("./file0", 0777) = 0
[ 178.230533][ T5723] loop0: detected capacity change from 0 to 4096
[ 178.248040][ T5723] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 178.256031][ T5723] NILFS (loop0): trying rollback from an earlier position
[ 178.271519][ T5723] NILFS (loop0): recovery complete
[pid 5723] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5723] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5723] chdir("./file0") = 0
[pid 5723] ioctl(4, LOOP_CLR_FD) = 0
[pid 5723] close(4) = 0
[pid 5723] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5723] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 178.277353][ T5724] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5723] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5723] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5723] exit_group(0) = ?
[pid 5723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5723, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./327", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./327", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./327/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./327/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./327/binderfs") = 0
umount2("./327/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./327/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./327/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./327/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./327/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./327/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./327") = 0
mkdir("./328", 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=0x555555db65d0) = 5725
./strace-static-x86_64: Process 5725 attached
[pid 5725] chdir("./328") = 0
[pid 5725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5725] setpgid(0, 0) = 0
[pid 5725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5725] write(3, "1000", 4) = 4
[pid 5725] close(3) = 0
[pid 5725] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5725] memfd_create("syzkaller", 0) = 3
[pid 5725] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5725] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5725] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5725] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5725] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5725] close(3) = 0
[pid 5725] mkdir("./file0", 0777) = 0
[ 178.560583][ T5725] loop0: detected capacity change from 0 to 4096
[ 178.576958][ T5725] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 178.585016][ T5725] NILFS (loop0): trying rollback from an earlier position
[ 178.598921][ T5725] NILFS (loop0): recovery complete
[pid 5725] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5725] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5725] chdir("./file0") = 0
[pid 5725] ioctl(4, LOOP_CLR_FD) = 0
[pid 5725] close(4) = 0
[pid 5725] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5725] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 178.605359][ T5726] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5725] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5725] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5725] exit_group(0) = ?
[pid 5725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5725, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./328", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./328", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./328/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./328/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./328/binderfs") = 0
umount2("./328/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./328/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./328/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./328/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./328/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./328/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./328") = 0
mkdir("./329", 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=0x555555db65d0) = 5727
./strace-static-x86_64: Process 5727 attached
[pid 5727] chdir("./329") = 0
[pid 5727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5727] setpgid(0, 0) = 0
[pid 5727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5727] write(3, "1000", 4) = 4
[pid 5727] close(3) = 0
[pid 5727] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5727] memfd_create("syzkaller", 0) = 3
[pid 5727] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5727] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5727] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5727] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5727] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5727] close(3) = 0
[pid 5727] mkdir("./file0", 0777) = 0
[ 178.895226][ T5727] loop0: detected capacity change from 0 to 4096
[ 178.910604][ T5727] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 178.918645][ T5727] NILFS (loop0): trying rollback from an earlier position
[ 178.932732][ T5727] NILFS (loop0): recovery complete
[pid 5727] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5727] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5727] chdir("./file0") = 0
[pid 5727] ioctl(4, LOOP_CLR_FD) = 0
[pid 5727] close(4) = 0
[pid 5727] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5727] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 178.938689][ T5728] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5727] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5727] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5727] exit_group(0) = ?
[pid 5727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5727, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./329", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./329", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./329/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./329/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./329/binderfs") = 0
umount2("./329/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./329/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./329/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./329/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./329/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./329/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./329") = 0
mkdir("./330", 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=0x555555db65d0) = 5729
./strace-static-x86_64: Process 5729 attached
[pid 5729] chdir("./330") = 0
[pid 5729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5729] setpgid(0, 0) = 0
[pid 5729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5729] write(3, "1000", 4) = 4
[pid 5729] close(3) = 0
[pid 5729] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5729] memfd_create("syzkaller", 0) = 3
[pid 5729] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5729] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5729] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5729] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5729] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5729] close(3) = 0
[pid 5729] mkdir("./file0", 0777) = 0
[ 179.233889][ T5729] loop0: detected capacity change from 0 to 4096
[ 179.249955][ T5729] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 179.258187][ T5729] NILFS (loop0): trying rollback from an earlier position
[ 179.272227][ T5729] NILFS (loop0): recovery complete
[pid 5729] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5729] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5729] chdir("./file0") = 0
[pid 5729] ioctl(4, LOOP_CLR_FD) = 0
[pid 5729] close(4) = 0
[pid 5729] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5729] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 179.278239][ T5730] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5729] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5729] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5729] exit_group(0) = ?
[pid 5729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5729, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./330", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./330", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./330/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./330/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./330/binderfs") = 0
umount2("./330/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./330/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./330/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./330/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./330/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./330/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./330") = 0
mkdir("./331", 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=0x555555db65d0) = 5731
./strace-static-x86_64: Process 5731 attached
[pid 5731] chdir("./331") = 0
[pid 5731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5731] setpgid(0, 0) = 0
[pid 5731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5731] write(3, "1000", 4) = 4
[pid 5731] close(3) = 0
[pid 5731] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5731] memfd_create("syzkaller", 0) = 3
[pid 5731] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5731] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5731] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5731] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5731] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5731] close(3) = 0
[pid 5731] mkdir("./file0", 0777) = 0
[ 179.543340][ T5731] loop0: detected capacity change from 0 to 4096
[ 179.559145][ T5731] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 179.567251][ T5731] NILFS (loop0): trying rollback from an earlier position
[ 179.581680][ T5731] NILFS (loop0): recovery complete
[pid 5731] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5731] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5731] chdir("./file0") = 0
[pid 5731] ioctl(4, LOOP_CLR_FD) = 0
[pid 5731] close(4) = 0
[pid 5731] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5731] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 179.587912][ T5732] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5731] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5731] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5731] exit_group(0) = ?
[pid 5731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5731, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./331", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./331", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./331/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./331/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./331/binderfs") = 0
umount2("./331/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./331/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./331/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./331/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./331/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./331/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./331") = 0
mkdir("./332", 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=0x555555db65d0) = 5733
./strace-static-x86_64: Process 5733 attached
[pid 5733] chdir("./332") = 0
[pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5733] setpgid(0, 0) = 0
[pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5733] write(3, "1000", 4) = 4
[pid 5733] close(3) = 0
[pid 5733] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5733] memfd_create("syzkaller", 0) = 3
[pid 5733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5733] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5733] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5733] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5733] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5733] close(3) = 0
[pid 5733] mkdir("./file0", 0777) = 0
[ 179.871317][ T5733] loop0: detected capacity change from 0 to 4096
[ 179.887128][ T5733] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 179.895166][ T5733] NILFS (loop0): trying rollback from an earlier position
[ 179.909343][ T5733] NILFS (loop0): recovery complete
[pid 5733] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5733] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5733] chdir("./file0") = 0
[pid 5733] ioctl(4, LOOP_CLR_FD) = 0
[pid 5733] close(4) = 0
[pid 5733] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5733] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 179.915170][ T5734] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5733] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5733] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5733] exit_group(0) = ?
[pid 5733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./332", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./332", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./332/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./332/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./332/binderfs") = 0
umount2("./332/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./332/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./332/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./332/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./332/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./332/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./332") = 0
mkdir("./333", 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=0x555555db65d0) = 5735
./strace-static-x86_64: Process 5735 attached
[pid 5735] chdir("./333") = 0
[pid 5735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5735] setpgid(0, 0) = 0
[pid 5735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5735] write(3, "1000", 4) = 4
[pid 5735] close(3) = 0
[pid 5735] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5735] memfd_create("syzkaller", 0) = 3
[pid 5735] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5735] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5735] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5735] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5735] close(3) = 0
[pid 5735] mkdir("./file0", 0777) = 0
[pid 5735] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 180.198502][ T5735] loop0: detected capacity change from 0 to 4096
[ 180.214308][ T5735] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 180.222351][ T5735] NILFS (loop0): trying rollback from an earlier position
[ 180.235907][ T5735] NILFS (loop0): recovery complete
[pid 5735] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5735] chdir("./file0") = 0
[pid 5735] ioctl(4, LOOP_CLR_FD) = 0
[pid 5735] close(4) = 0
[pid 5735] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5735] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 180.242530][ T5736] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 180.258152][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 180.258164][ T27] audit: type=1800 audit(1676306868.018:335): pid=5735 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5735] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5735] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5735] exit_group(0) = ?
[pid 5735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5735, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./333", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./333", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./333/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./333/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./333/binderfs") = 0
umount2("./333/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./333/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./333/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./333/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./333/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./333/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./333") = 0
mkdir("./334", 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=0x555555db65d0) = 5737
./strace-static-x86_64: Process 5737 attached
[pid 5737] chdir("./334") = 0
[pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5737] setpgid(0, 0) = 0
[pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5737] write(3, "1000", 4) = 4
[pid 5737] close(3) = 0
[pid 5737] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5737] memfd_create("syzkaller", 0) = 3
[pid 5737] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5737] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5737] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5737] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5737] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5737] close(3) = 0
[pid 5737] mkdir("./file0", 0777) = 0
[ 180.555290][ T5737] loop0: detected capacity change from 0 to 4096
[ 180.570744][ T5737] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 180.578777][ T5737] NILFS (loop0): trying rollback from an earlier position
[ 180.592580][ T5737] NILFS (loop0): recovery complete
[pid 5737] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5737] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5737] chdir("./file0") = 0
[pid 5737] ioctl(4, LOOP_CLR_FD) = 0
[pid 5737] close(4) = 0
[pid 5737] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5737] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 180.598407][ T5738] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 180.612048][ T27] audit: type=1800 audit(1676306868.378:336): pid=5737 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[ 180.647813][ T5738] NILFS (loop0): nilfs_direct_assign (ino=6): invalid key: 130
[pid 5737] sendfile(4, 5, NULL, 2147538701) = 65536
[pid 5737] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5737] exit_group(0) = ?
[pid 5737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./334", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./334", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./334/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./334/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./334/binderfs") = 0
umount2("./334/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./334/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./334/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./334/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./334/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./334/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./334") = 0
mkdir("./335", 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 5739 attached
[ 180.655664][ T5738] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=6)
[ 180.665473][ T5738] Remounting filesystem read-only
, child_tidptr=0x555555db65d0) = 5739
[pid 5739] chdir("./335") = 0
[pid 5739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5739] setpgid(0, 0) = 0
[pid 5739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5739] write(3, "1000", 4) = 4
[pid 5739] close(3) = 0
[pid 5739] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5739] memfd_create("syzkaller", 0) = 3
[pid 5739] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5739] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5739] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5739] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5739] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5739] close(3) = 0
[pid 5739] mkdir("./file0", 0777) = 0
[ 180.754677][ T5739] loop0: detected capacity change from 0 to 4096
[ 180.772294][ T5739] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 180.780393][ T5739] NILFS (loop0): trying rollback from an earlier position
[ 180.793986][ T5739] NILFS (loop0): recovery complete
[pid 5739] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5739] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5739] chdir("./file0") = 0
[pid 5739] ioctl(4, LOOP_CLR_FD) = 0
[pid 5739] close(4) = 0
[pid 5739] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5739] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 180.800181][ T5740] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 180.827553][ T27] audit: type=1800 audit(1676306868.588:337): pid=5739 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5739] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5739] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5739] exit_group(0) = ?
[pid 5739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5739, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./335", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./335", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./335/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./335/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./335/binderfs") = 0
umount2("./335/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./335/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./335/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./335/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./335/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./335/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./335") = 0
mkdir("./336", 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=0x555555db65d0) = 5741
./strace-static-x86_64: Process 5741 attached
[pid 5741] chdir("./336") = 0
[pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5741] setpgid(0, 0) = 0
[pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5741] write(3, "1000", 4) = 4
[pid 5741] close(3) = 0
[pid 5741] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5741] memfd_create("syzkaller", 0) = 3
[pid 5741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5741] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5741] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5741] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5741] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5741] close(3) = 0
[pid 5741] mkdir("./file0", 0777) = 0
[ 181.109932][ T5741] loop0: detected capacity change from 0 to 4096
[ 181.127747][ T5741] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 181.136050][ T5741] NILFS (loop0): trying rollback from an earlier position
[ 181.150823][ T5741] NILFS (loop0): recovery complete
[pid 5741] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5741] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5741] chdir("./file0") = 0
[pid 5741] ioctl(4, LOOP_CLR_FD) = 0
[pid 5741] close(4) = 0
[pid 5741] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5741] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 181.156958][ T5742] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 181.171581][ T27] audit: type=1800 audit(1676306868.938:338): pid=5741 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5741] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5741] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5741] exit_group(0) = ?
[pid 5741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./336", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./336", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./336/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./336/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./336/binderfs") = 0
umount2("./336/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./336/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./336/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./336/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./336/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./336/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./336") = 0
mkdir("./337", 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=0x555555db65d0) = 5743
./strace-static-x86_64: Process 5743 attached
[pid 5743] chdir("./337") = 0
[pid 5743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5743] setpgid(0, 0) = 0
[pid 5743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5743] write(3, "1000", 4) = 4
[pid 5743] close(3) = 0
[pid 5743] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5743] memfd_create("syzkaller", 0) = 3
[pid 5743] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5743] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5743] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5743] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5743] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5743] close(3) = 0
[pid 5743] mkdir("./file0", 0777) = 0
[pid 5743] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5743] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5743] chdir("./file0") = 0
[pid 5743] ioctl(4, LOOP_CLR_FD) = 0
[pid 5743] close(4) = 0
[ 181.455241][ T5743] loop0: detected capacity change from 0 to 4096
[ 181.473052][ T5743] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 181.481136][ T5743] NILFS (loop0): trying rollback from an earlier position
[ 181.495063][ T5743] NILFS (loop0): recovery complete
[pid 5743] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5743] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 181.512985][ T5744] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 181.516216][ T27] audit: type=1800 audit(1676306869.258:339): pid=5743 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5743] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5743] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5743] exit_group(0) = ?
[pid 5743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5743, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./337", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./337", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./337/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./337/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./337/binderfs") = 0
umount2("./337/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./337/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./337/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./337/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./337/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./337/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./337") = 0
mkdir("./338", 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=0x555555db65d0) = 5745
./strace-static-x86_64: Process 5745 attached
[pid 5745] chdir("./338") = 0
[pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5745] setpgid(0, 0) = 0
[pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5745] write(3, "1000", 4) = 4
[pid 5745] close(3) = 0
[pid 5745] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5745] memfd_create("syzkaller", 0) = 3
[pid 5745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5745] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5745] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5745] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5745] close(3) = 0
[pid 5745] mkdir("./file0", 0777) = 0
[ 181.829247][ T5745] loop0: detected capacity change from 0 to 4096
[ 181.845887][ T5745] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 181.854064][ T5745] NILFS (loop0): trying rollback from an earlier position
[ 181.869175][ T5745] NILFS (loop0): recovery complete
[pid 5745] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5745] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5745] chdir("./file0") = 0
[pid 5745] ioctl(4, LOOP_CLR_FD) = 0
[pid 5745] close(4) = 0
[pid 5745] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5745] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 181.875971][ T5746] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 181.887784][ T27] audit: type=1800 audit(1676306869.648:340): pid=5745 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5745] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5745] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5745] exit_group(0) = ?
[pid 5745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./338", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./338", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./338/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./338/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./338/binderfs") = 0
umount2("./338/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./338/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./338/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./338/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./338/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./338/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./338") = 0
mkdir("./339", 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=0x555555db65d0) = 5747
./strace-static-x86_64: Process 5747 attached
[pid 5747] chdir("./339") = 0
[pid 5747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5747] setpgid(0, 0) = 0
[pid 5747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5747] write(3, "1000", 4) = 4
[pid 5747] close(3) = 0
[pid 5747] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5747] memfd_create("syzkaller", 0) = 3
[pid 5747] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5747] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5747] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5747] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5747] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5747] close(3) = 0
[pid 5747] mkdir("./file0", 0777) = 0
[ 182.174406][ T5747] loop0: detected capacity change from 0 to 4096
[ 182.191890][ T5747] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 182.199972][ T5747] NILFS (loop0): trying rollback from an earlier position
[ 182.214198][ T5747] NILFS (loop0): recovery complete
[pid 5747] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5747] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5747] chdir("./file0") = 0
[pid 5747] ioctl(4, LOOP_CLR_FD) = 0
[pid 5747] close(4) = 0
[pid 5747] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5747] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 182.221079][ T5748] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 182.236225][ T27] audit: type=1800 audit(1676306869.998:341): pid=5747 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5747] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5747] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5747] exit_group(0) = ?
[pid 5747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5747, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./339", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./339", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./339/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./339/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./339/binderfs") = 0
umount2("./339/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./339/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./339/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./339/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./339/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./339/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./339") = 0
mkdir("./340", 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=0x555555db65d0) = 5749
./strace-static-x86_64: Process 5749 attached
[pid 5749] chdir("./340") = 0
[pid 5749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5749] setpgid(0, 0) = 0
[pid 5749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5749] write(3, "1000", 4) = 4
[pid 5749] close(3) = 0
[pid 5749] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5749] memfd_create("syzkaller", 0) = 3
[pid 5749] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5749] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5749] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5749] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5749] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5749] close(3) = 0
[pid 5749] mkdir("./file0", 0777) = 0
[ 182.501401][ T5749] loop0: detected capacity change from 0 to 4096
[ 182.519825][ T5749] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 182.528141][ T5749] NILFS (loop0): trying rollback from an earlier position
[ 182.544197][ T5749] NILFS (loop0): recovery complete
[pid 5749] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5749] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5749] chdir("./file0") = 0
[pid 5749] ioctl(4, LOOP_CLR_FD) = 0
[pid 5749] close(4) = 0
[pid 5749] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5749] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 182.550382][ T5750] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 182.564137][ T27] audit: type=1800 audit(1676306870.328:342): pid=5749 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5749] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5749] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5749] exit_group(0) = ?
[pid 5749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5749, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./340", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./340", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./340/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./340/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./340/binderfs") = 0
umount2("./340/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./340/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./340/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./340/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./340/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./340/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./340") = 0
mkdir("./341", 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=0x555555db65d0) = 5751
./strace-static-x86_64: Process 5751 attached
[pid 5751] chdir("./341") = 0
[pid 5751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5751] setpgid(0, 0) = 0
[pid 5751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5751] write(3, "1000", 4) = 4
[pid 5751] close(3) = 0
[pid 5751] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5751] memfd_create("syzkaller", 0) = 3
[pid 5751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5751] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5751] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5751] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5751] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5751] close(3) = 0
[pid 5751] mkdir("./file0", 0777) = 0
[pid 5751] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5751] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5751] chdir("./file0") = 0
[pid 5751] ioctl(4, LOOP_CLR_FD) = 0
[ 182.877839][ T5751] loop0: detected capacity change from 0 to 4096
[ 182.893518][ T5751] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 182.901595][ T5751] NILFS (loop0): trying rollback from an earlier position
[ 182.915814][ T5751] NILFS (loop0): recovery complete
[pid 5751] close(4) = 0
[pid 5751] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5751] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 182.921752][ T5752] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 182.936189][ T27] audit: type=1800 audit(1676306870.688:343): pid=5751 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5751] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5751] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5751] exit_group(0) = ?
[pid 5751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5751, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./341", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./341", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./341/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./341/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./341/binderfs") = 0
umount2("./341/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./341/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./341/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./341/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./341/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./341/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./341") = 0
mkdir("./342", 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=0x555555db65d0) = 5753
./strace-static-x86_64: Process 5753 attached
[pid 5753] chdir("./342") = 0
[pid 5753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5753] setpgid(0, 0) = 0
[pid 5753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5753] write(3, "1000", 4) = 4
[pid 5753] close(3) = 0
[pid 5753] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5753] memfd_create("syzkaller", 0) = 3
[pid 5753] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5753] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5753] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5753] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5753] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5753] close(3) = 0
[pid 5753] mkdir("./file0", 0777) = 0
[pid 5753] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 183.233485][ T5753] loop0: detected capacity change from 0 to 4096
[ 183.252556][ T5753] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 183.260699][ T5753] NILFS (loop0): trying rollback from an earlier position
[ 183.275066][ T5753] NILFS (loop0): recovery complete
[pid 5753] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5753] chdir("./file0") = 0
[pid 5753] ioctl(4, LOOP_CLR_FD) = 0
[pid 5753] close(4) = 0
[pid 5753] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5753] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 183.281327][ T5754] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 183.294714][ T27] audit: type=1800 audit(1676306871.058:344): pid=5753 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5753] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5753] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5753] exit_group(0) = ?
[pid 5753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5753, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./342", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./342", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./342/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./342/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./342/binderfs") = 0
umount2("./342/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./342/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./342/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./342/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./342/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./342/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./342") = 0
mkdir("./343", 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=0x555555db65d0) = 5755
./strace-static-x86_64: Process 5755 attached
[pid 5755] chdir("./343") = 0
[pid 5755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5755] setpgid(0, 0) = 0
[pid 5755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5755] write(3, "1000", 4) = 4
[pid 5755] close(3) = 0
[pid 5755] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5755] memfd_create("syzkaller", 0) = 3
[pid 5755] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5755] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5755] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5755] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5755] close(3) = 0
[pid 5755] mkdir("./file0", 0777) = 0
[ 183.602212][ T5755] loop0: detected capacity change from 0 to 4096
[ 183.618067][ T5755] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 183.626101][ T5755] NILFS (loop0): trying rollback from an earlier position
[ 183.639868][ T5755] NILFS (loop0): recovery complete
[pid 5755] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5755] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5755] chdir("./file0") = 0
[pid 5755] ioctl(4, LOOP_CLR_FD) = 0
[pid 5755] close(4) = 0
[pid 5755] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5755] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 183.645852][ T5756] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5755] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5755] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5755] exit_group(0) = ?
[pid 5755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5755, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./343", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./343", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./343/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./343/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./343/binderfs") = 0
umount2("./343/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./343/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./343/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./343/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./343/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./343/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./343") = 0
mkdir("./344", 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=0x555555db65d0) = 5757
./strace-static-x86_64: Process 5757 attached
[pid 5757] chdir("./344") = 0
[pid 5757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5757] setpgid(0, 0) = 0
[pid 5757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5757] write(3, "1000", 4) = 4
[pid 5757] close(3) = 0
[pid 5757] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5757] memfd_create("syzkaller", 0) = 3
[pid 5757] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5757] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5757] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5757] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5757] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5757] close(3) = 0
[pid 5757] mkdir("./file0", 0777) = 0
[ 183.960347][ T5757] loop0: detected capacity change from 0 to 4096
[ 183.977396][ T5757] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 183.985564][ T5757] NILFS (loop0): trying rollback from an earlier position
[ 184.002236][ T5757] NILFS (loop0): recovery complete
[pid 5757] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5757] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5757] chdir("./file0") = 0
[pid 5757] ioctl(4, LOOP_CLR_FD) = 0
[pid 5757] close(4) = 0
[pid 5757] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5757] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 184.008560][ T5758] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5757] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5757] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5757] exit_group(0) = ?
[pid 5757] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5757, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./344", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./344", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./344/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./344/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./344/binderfs") = 0
umount2("./344/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./344/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./344/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./344/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./344/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./344/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./344") = 0
mkdir("./345", 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=0x555555db65d0) = 5759
./strace-static-x86_64: Process 5759 attached
[pid 5759] chdir("./345") = 0
[pid 5759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5759] setpgid(0, 0) = 0
[pid 5759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5759] write(3, "1000", 4) = 4
[pid 5759] close(3) = 0
[pid 5759] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5759] memfd_create("syzkaller", 0) = 3
[pid 5759] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5759] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5759] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5759] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5759] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5759] close(3) = 0
[pid 5759] mkdir("./file0", 0777) = 0
[ 184.333662][ T5759] loop0: detected capacity change from 0 to 4096
[ 184.351206][ T5759] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 184.359331][ T5759] NILFS (loop0): trying rollback from an earlier position
[ 184.373793][ T5759] NILFS (loop0): recovery complete
[pid 5759] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5759] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5759] chdir("./file0") = 0
[pid 5759] ioctl(4, LOOP_CLR_FD) = 0
[pid 5759] close(4) = 0
[pid 5759] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5759] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 184.379881][ T5760] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5759] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5759] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5759] exit_group(0) = ?
[pid 5759] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5759, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./345", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./345", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./345/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./345/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./345/binderfs") = 0
umount2("./345/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./345/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./345/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./345/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./345/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./345/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./345") = 0
mkdir("./346", 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=0x555555db65d0) = 5761
./strace-static-x86_64: Process 5761 attached
[pid 5761] chdir("./346") = 0
[pid 5761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5761] setpgid(0, 0) = 0
[pid 5761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5761] write(3, "1000", 4) = 4
[pid 5761] close(3) = 0
[pid 5761] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5761] memfd_create("syzkaller", 0) = 3
[pid 5761] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5761] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5761] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5761] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5761] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5761] close(3) = 0
[pid 5761] mkdir("./file0", 0777) = 0
[pid 5761] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5761] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5761] chdir("./file0") = 0
[ 184.696933][ T5761] loop0: detected capacity change from 0 to 4096
[ 184.714667][ T5761] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 184.722823][ T5761] NILFS (loop0): trying rollback from an earlier position
[ 184.736402][ T5761] NILFS (loop0): recovery complete
[pid 5761] ioctl(4, LOOP_CLR_FD) = 0
[pid 5761] close(4) = 0
[pid 5761] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5761] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 184.742588][ T5762] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5761] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5761] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5761] exit_group(0) = ?
[pid 5761] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5761, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./346", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./346", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./346/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./346/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./346/binderfs") = 0
umount2("./346/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./346/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./346/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./346/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./346/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./346/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./346") = 0
mkdir("./347", 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=0x555555db65d0) = 5763
./strace-static-x86_64: Process 5763 attached
[pid 5763] chdir("./347") = 0
[pid 5763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5763] setpgid(0, 0) = 0
[pid 5763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5763] write(3, "1000", 4) = 4
[pid 5763] close(3) = 0
[pid 5763] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5763] memfd_create("syzkaller", 0) = 3
[pid 5763] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5763] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5763] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5763] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5763] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5763] close(3) = 0
[pid 5763] mkdir("./file0", 0777) = 0
[ 185.049692][ T5763] loop0: detected capacity change from 0 to 4096
[ 185.065939][ T5763] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 185.074343][ T5763] NILFS (loop0): trying rollback from an earlier position
[ 185.088369][ T5763] NILFS (loop0): recovery complete
[pid 5763] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5763] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5763] chdir("./file0") = 0
[pid 5763] ioctl(4, LOOP_CLR_FD) = 0
[pid 5763] close(4) = 0
[pid 5763] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5763] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 185.094455][ T5764] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5763] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5763] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5763] exit_group(0) = ?
[pid 5763] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5763, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./347", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./347", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./347/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./347/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./347/binderfs") = 0
umount2("./347/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./347/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./347/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./347/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./347/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./347/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./347") = 0
mkdir("./348", 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=0x555555db65d0) = 5765
./strace-static-x86_64: Process 5765 attached
[pid 5765] chdir("./348") = 0
[pid 5765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5765] setpgid(0, 0) = 0
[pid 5765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5765] write(3, "1000", 4) = 4
[pid 5765] close(3) = 0
[pid 5765] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5765] memfd_create("syzkaller", 0) = 3
[pid 5765] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5765] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5765] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5765] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5765] close(3) = 0
[pid 5765] mkdir("./file0", 0777) = 0
[pid 5765] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5765] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5765] chdir("./file0") = 0
[pid 5765] ioctl(4, LOOP_CLR_FD) = 0
[pid 5765] close(4) = 0
[ 185.407347][ T5765] loop0: detected capacity change from 0 to 4096
[ 185.424010][ T5765] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 185.432198][ T5765] NILFS (loop0): trying rollback from an earlier position
[ 185.446491][ T5765] NILFS (loop0): recovery complete
[pid 5765] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5765] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 185.452553][ T5766] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 185.466174][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 185.466187][ T27] audit: type=1800 audit(1676306873.218:350): pid=5765 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5765] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5765] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5765] exit_group(0) = ?
[pid 5765] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5765, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./348", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./348", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./348/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./348/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./348/binderfs") = 0
umount2("./348/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./348/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./348/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./348/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./348/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./348/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./348") = 0
mkdir("./349", 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=0x555555db65d0) = 5767
./strace-static-x86_64: Process 5767 attached
[pid 5767] chdir("./349") = 0
[pid 5767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5767] setpgid(0, 0) = 0
[pid 5767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5767] write(3, "1000", 4) = 4
[pid 5767] close(3) = 0
[pid 5767] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5767] memfd_create("syzkaller", 0) = 3
[pid 5767] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5767] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5767] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5767] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5767] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5767] close(3) = 0
[pid 5767] mkdir("./file0", 0777) = 0
[ 185.764765][ T5767] loop0: detected capacity change from 0 to 4096
[ 185.782204][ T5767] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 185.790496][ T5767] NILFS (loop0): trying rollback from an earlier position
[ 185.804867][ T5767] NILFS (loop0): recovery complete
[pid 5767] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5767] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5767] chdir("./file0") = 0
[pid 5767] ioctl(4, LOOP_CLR_FD) = 0
[pid 5767] close(4) = 0
[pid 5767] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5767] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 185.811443][ T5768] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 185.825254][ T27] audit: type=1800 audit(1676306873.578:351): pid=5767 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5767] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5767] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5767] exit_group(0) = ?
[pid 5767] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5767, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./349", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./349", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./349/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./349/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./349/binderfs") = 0
umount2("./349/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./349/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./349/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./349/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./349/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./349/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./349") = 0
mkdir("./350", 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=0x555555db65d0) = 5769
./strace-static-x86_64: Process 5769 attached
[pid 5769] chdir("./350") = 0
[pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5769] setpgid(0, 0) = 0
[pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5769] write(3, "1000", 4) = 4
[pid 5769] close(3) = 0
[pid 5769] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5769] memfd_create("syzkaller", 0) = 3
[pid 5769] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5769] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5769] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5769] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5769] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5769] close(3) = 0
[pid 5769] mkdir("./file0", 0777) = 0
[ 186.131971][ T5769] loop0: detected capacity change from 0 to 4096
[ 186.148815][ T5769] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 186.156882][ T5769] NILFS (loop0): trying rollback from an earlier position
[ 186.171736][ T5769] NILFS (loop0): recovery complete
[pid 5769] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5769] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5769] chdir("./file0") = 0
[pid 5769] ioctl(4, LOOP_CLR_FD) = 0
[pid 5769] close(4) = 0
[pid 5769] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5769] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 186.177643][ T5770] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 186.191181][ T27] audit: type=1800 audit(1676306873.958:352): pid=5769 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5769] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5769] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5769] exit_group(0) = ?
[pid 5769] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./350", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./350", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./350/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./350/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./350/binderfs") = 0
umount2("./350/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./350/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./350/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./350/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./350/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./350/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./350") = 0
mkdir("./351", 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=0x555555db65d0) = 5771
./strace-static-x86_64: Process 5771 attached
[pid 5771] chdir("./351") = 0
[pid 5771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5771] setpgid(0, 0) = 0
[pid 5771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5771] write(3, "1000", 4) = 4
[pid 5771] close(3) = 0
[pid 5771] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5771] memfd_create("syzkaller", 0) = 3
[pid 5771] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5771] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5771] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5771] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5771] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5771] close(3) = 0
[pid 5771] mkdir("./file0", 0777) = 0
[ 186.506904][ T5771] loop0: detected capacity change from 0 to 4096
[ 186.523241][ T5771] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 186.531417][ T5771] NILFS (loop0): trying rollback from an earlier position
[ 186.549111][ T5771] NILFS (loop0): recovery complete
[pid 5771] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5771] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5771] chdir("./file0") = 0
[pid 5771] ioctl(4, LOOP_CLR_FD) = 0
[pid 5771] close(4) = 0
[pid 5771] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5771] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 186.555435][ T5772] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 186.562229][ T27] audit: type=1800 audit(1676306874.308:353): pid=5771 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5771] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5771] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5771] exit_group(0) = ?
[pid 5771] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5771, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./351", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./351", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./351/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./351/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./351/binderfs") = 0
umount2("./351/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./351/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./351/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./351/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./351/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./351/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./351") = 0
mkdir("./352", 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=0x555555db65d0) = 5773
./strace-static-x86_64: Process 5773 attached
[pid 5773] chdir("./352") = 0
[pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5773] setpgid(0, 0) = 0
[pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5773] write(3, "1000", 4) = 4
[pid 5773] close(3) = 0
[pid 5773] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5773] memfd_create("syzkaller", 0) = 3
[pid 5773] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5773] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5773] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5773] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5773] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5773] close(3) = 0
[pid 5773] mkdir("./file0", 0777) = 0
[ 186.860849][ T5773] loop0: detected capacity change from 0 to 4096
[ 186.877130][ T5773] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 186.885160][ T5773] NILFS (loop0): trying rollback from an earlier position
[ 186.901307][ T5773] NILFS (loop0): recovery complete
[pid 5773] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5773] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5773] chdir("./file0") = 0
[pid 5773] ioctl(4, LOOP_CLR_FD) = 0
[pid 5773] close(4) = 0
[pid 5773] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5773] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 186.907708][ T5774] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 186.922064][ T27] audit: type=1800 audit(1676306874.688:354): pid=5773 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5773] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5773] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5773] exit_group(0) = ?
[pid 5773] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./352", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./352", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./352/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./352/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./352/binderfs") = 0
umount2("./352/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./352/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./352/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./352/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./352/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./352/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./352") = 0
mkdir("./353", 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 5775 attached
, child_tidptr=0x555555db65d0) = 5775
[pid 5775] chdir("./353") = 0
[pid 5775] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5775] setpgid(0, 0) = 0
[pid 5775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5775] write(3, "1000", 4) = 4
[pid 5775] close(3) = 0
[pid 5775] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5775] memfd_create("syzkaller", 0) = 3
[pid 5775] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5775] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5775] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5775] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5775] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5775] close(3) = 0
[pid 5775] mkdir("./file0", 0777) = 0
[pid 5775] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5775] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5775] chdir("./file0") = 0
[pid 5775] ioctl(4, LOOP_CLR_FD) = 0
[pid 5775] close(4) = 0
[ 187.226313][ T5775] loop0: detected capacity change from 0 to 4096
[ 187.242166][ T5775] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 187.250281][ T5775] NILFS (loop0): trying rollback from an earlier position
[ 187.264135][ T5775] NILFS (loop0): recovery complete
[pid 5775] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5775] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 187.270195][ T5776] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 187.286165][ T27] audit: type=1800 audit(1676306875.038:355): pid=5775 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5775] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5775] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5775] exit_group(0) = ?
[pid 5775] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5775, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./353", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./353", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./353/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./353/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./353/binderfs") = 0
umount2("./353/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./353/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./353/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./353/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./353/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./353/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./353") = 0
mkdir("./354", 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=0x555555db65d0) = 5777
./strace-static-x86_64: Process 5777 attached
[pid 5777] chdir("./354") = 0
[pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5777] setpgid(0, 0) = 0
[pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5777] write(3, "1000", 4) = 4
[pid 5777] close(3) = 0
[pid 5777] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5777] memfd_create("syzkaller", 0) = 3
[pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5777] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5777] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5777] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5777] close(3) = 0
[pid 5777] mkdir("./file0", 0777) = 0
[ 187.550257][ T5777] loop0: detected capacity change from 0 to 4096
[ 187.566726][ T5777] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 187.574814][ T5777] NILFS (loop0): trying rollback from an earlier position
[ 187.590993][ T5777] NILFS (loop0): recovery complete
[pid 5777] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5777] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5777] chdir("./file0") = 0
[pid 5777] ioctl(4, LOOP_CLR_FD) = 0
[pid 5777] close(4) = 0
[pid 5777] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5777] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 187.597228][ T5778] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 187.611783][ T27] audit: type=1800 audit(1676306875.378:356): pid=5777 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5777] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5777] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5777] exit_group(0) = ?
[pid 5777] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./354", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./354", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./354/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./354/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./354/binderfs") = 0
umount2("./354/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./354/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./354/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./354/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./354/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./354/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./354") = 0
mkdir("./355", 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=0x555555db65d0) = 5779
./strace-static-x86_64: Process 5779 attached
[pid 5779] chdir("./355") = 0
[pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5779] setpgid(0, 0) = 0
[pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5779] write(3, "1000", 4) = 4
[pid 5779] close(3) = 0
[pid 5779] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5779] memfd_create("syzkaller", 0) = 3
[pid 5779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5779] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5779] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5779] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5779] close(3) = 0
[pid 5779] mkdir("./file0", 0777) = 0
[ 187.889113][ T5779] loop0: detected capacity change from 0 to 4096
[ 187.904044][ T5779] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 187.912219][ T5779] NILFS (loop0): trying rollback from an earlier position
[ 187.928459][ T5779] NILFS (loop0): recovery complete
[pid 5779] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5779] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5779] chdir("./file0") = 0
[pid 5779] ioctl(4, LOOP_CLR_FD) = 0
[pid 5779] close(4) = 0
[pid 5779] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5779] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 187.935008][ T5780] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 187.958483][ T27] audit: type=1800 audit(1676306875.698:357): pid=5779 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5779] sendfile(4, 5, NULL, 2147538701) = 65536
[pid 5779] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5779] exit_group(0) = ?
[pid 5779] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5779, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./355", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./355", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./355/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./355/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./355/binderfs") = 0
umount2("./355/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./355/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./355/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./355/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./355/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./355/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./355") = 0
mkdir("./356", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 187.983384][ T5780] NILFS (loop0): nilfs_direct_assign (ino=6): invalid key: 130
[ 187.991116][ T5780] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=6)
[ 188.001115][ T5780] Remounting filesystem read-only
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=0x555555db65d0) = 5781
./strace-static-x86_64: Process 5781 attached
[pid 5781] chdir("./356") = 0
[pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5781] setpgid(0, 0) = 0
[pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5781] write(3, "1000", 4) = 4
[pid 5781] close(3) = 0
[pid 5781] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5781] memfd_create("syzkaller", 0) = 3
[pid 5781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5781] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5781] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5781] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5781] close(3) = 0
[pid 5781] mkdir("./file0", 0777) = 0
[pid 5781] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 188.105960][ T5781] loop0: detected capacity change from 0 to 4096
[ 188.124967][ T5781] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 188.133242][ T5781] NILFS (loop0): trying rollback from an earlier position
[ 188.147927][ T5781] NILFS (loop0): recovery complete
[pid 5781] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5781] chdir("./file0") = 0
[pid 5781] ioctl(4, LOOP_CLR_FD) = 0
[pid 5781] close(4) = 0
[pid 5781] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5781] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 188.154673][ T5782] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 188.164975][ T27] audit: type=1800 audit(1676306875.908:358): pid=5781 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5781] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5781] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5781] exit_group(0) = ?
[pid 5781] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./356", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./356", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./356/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./356/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./356/binderfs") = 0
umount2("./356/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./356/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./356/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./356/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./356/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./356/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./356") = 0
mkdir("./357", 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=0x555555db65d0) = 5783
./strace-static-x86_64: Process 5783 attached
[pid 5783] chdir("./357") = 0
[pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5783] setpgid(0, 0) = 0
[pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5783] write(3, "1000", 4) = 4
[pid 5783] close(3) = 0
[pid 5783] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5783] memfd_create("syzkaller", 0) = 3
[pid 5783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5783] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5783] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5783] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5783] close(3) = 0
[pid 5783] mkdir("./file0", 0777) = 0
[ 188.488939][ T5783] loop0: detected capacity change from 0 to 4096
[ 188.505419][ T5783] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 188.513491][ T5783] NILFS (loop0): trying rollback from an earlier position
[ 188.527862][ T5783] NILFS (loop0): recovery complete
[pid 5783] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5783] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5783] chdir("./file0") = 0
[pid 5783] ioctl(4, LOOP_CLR_FD) = 0
[pid 5783] close(4) = 0
[ 188.533623][ T5784] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5783] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5783] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 188.560261][ T27] audit: type=1800 audit(1676306876.318:359): pid=5783 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5783] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5783] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5783] exit_group(0) = ?
[pid 5783] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./357", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./357", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./357/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./357/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./357/binderfs") = 0
umount2("./357/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./357/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./357/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./357/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./357/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./357/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./357") = 0
mkdir("./358", 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=0x555555db65d0) = 5785
./strace-static-x86_64: Process 5785 attached
[pid 5785] chdir("./358") = 0
[pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5785] setpgid(0, 0) = 0
[pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5785] write(3, "1000", 4) = 4
[pid 5785] close(3) = 0
[pid 5785] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5785] memfd_create("syzkaller", 0) = 3
[pid 5785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5785] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5785] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5785] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5785] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5785] close(3) = 0
[pid 5785] mkdir("./file0", 0777) = 0
[pid 5785] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 188.834317][ T5785] loop0: detected capacity change from 0 to 4096
[ 188.850413][ T5785] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 188.858487][ T5785] NILFS (loop0): trying rollback from an earlier position
[ 188.872406][ T5785] NILFS (loop0): recovery complete
[pid 5785] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5785] chdir("./file0") = 0
[pid 5785] ioctl(4, LOOP_CLR_FD) = 0
[pid 5785] close(4) = 0
[pid 5785] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5785] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 188.880061][ T5786] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5785] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5785] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5785] exit_group(0) = ?
[pid 5785] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5785, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./358", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./358", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./358/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./358/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./358/binderfs") = 0
umount2("./358/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./358/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./358/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./358/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./358/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./358/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./358") = 0
mkdir("./359", 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=0x555555db65d0) = 5787
./strace-static-x86_64: Process 5787 attached
[pid 5787] chdir("./359") = 0
[pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5787] setpgid(0, 0) = 0
[pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5787] write(3, "1000", 4) = 4
[pid 5787] close(3) = 0
[pid 5787] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5787] memfd_create("syzkaller", 0) = 3
[pid 5787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5787] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5787] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5787] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5787] close(3) = 0
[pid 5787] mkdir("./file0", 0777) = 0
[pid 5787] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 189.200635][ T5787] loop0: detected capacity change from 0 to 4096
[ 189.218097][ T5787] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 189.226207][ T5787] NILFS (loop0): trying rollback from an earlier position
[ 189.240164][ T5787] NILFS (loop0): recovery complete
[pid 5787] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5787] chdir("./file0") = 0
[pid 5787] ioctl(4, LOOP_CLR_FD) = 0
[pid 5787] close(4) = 0
[pid 5787] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5787] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 189.247812][ T5788] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5787] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5787] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5787] exit_group(0) = ?
[pid 5787] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./359", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./359", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./359/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./359/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./359/binderfs") = 0
umount2("./359/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./359/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./359/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./359/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./359/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./359/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./359") = 0
mkdir("./360", 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=0x555555db65d0) = 5789
./strace-static-x86_64: Process 5789 attached
[pid 5789] chdir("./360") = 0
[pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5789] setpgid(0, 0) = 0
[pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5789] write(3, "1000", 4) = 4
[pid 5789] close(3) = 0
[pid 5789] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5789] memfd_create("syzkaller", 0) = 3
[pid 5789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5789] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5789] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5789] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5789] close(3) = 0
[pid 5789] mkdir("./file0", 0777) = 0
[ 189.557928][ T5789] loop0: detected capacity change from 0 to 4096
[ 189.574531][ T5789] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 189.582663][ T5789] NILFS (loop0): trying rollback from an earlier position
[ 189.599477][ T5789] NILFS (loop0): recovery complete
[pid 5789] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5789] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5789] chdir("./file0") = 0
[pid 5789] ioctl(4, LOOP_CLR_FD) = 0
[pid 5789] close(4) = 0
[pid 5789] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5789] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 189.605749][ T5790] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5789] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5789] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5789] exit_group(0) = ?
[pid 5789] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5789, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./360", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./360", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./360/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./360/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./360/binderfs") = 0
umount2("./360/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./360/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./360/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./360/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./360/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./360/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./360") = 0
mkdir("./361", 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=0x555555db65d0) = 5791
./strace-static-x86_64: Process 5791 attached
[pid 5791] chdir("./361") = 0
[pid 5791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5791] setpgid(0, 0) = 0
[pid 5791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5791] write(3, "1000", 4) = 4
[pid 5791] close(3) = 0
[pid 5791] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5791] memfd_create("syzkaller", 0) = 3
[pid 5791] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5791] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5791] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5791] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5791] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5791] close(3) = 0
[pid 5791] mkdir("./file0", 0777) = 0
[ 189.908546][ T5791] loop0: detected capacity change from 0 to 4096
[ 189.924221][ T5791] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 189.932409][ T5791] NILFS (loop0): trying rollback from an earlier position
[ 189.947109][ T5791] NILFS (loop0): recovery complete
[pid 5791] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5791] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5791] chdir("./file0") = 0
[pid 5791] ioctl(4, LOOP_CLR_FD) = 0
[pid 5791] close(4) = 0
[pid 5791] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5791] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 189.953974][ T5792] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5791] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5791] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5791] exit_group(0) = ?
[pid 5791] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5791, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./361", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./361", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./361/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./361/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./361/binderfs") = 0
umount2("./361/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./361/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./361/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./361/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./361/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./361/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./361") = 0
mkdir("./362", 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=0x555555db65d0) = 5793
./strace-static-x86_64: Process 5793 attached
[pid 5793] chdir("./362") = 0
[pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5793] setpgid(0, 0) = 0
[pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5793] write(3, "1000", 4) = 4
[pid 5793] close(3) = 0
[pid 5793] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5793] memfd_create("syzkaller", 0) = 3
[pid 5793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5793] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5793] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5793] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5793] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5793] close(3) = 0
[pid 5793] mkdir("./file0", 0777) = 0
[pid 5793] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 190.283725][ T5793] loop0: detected capacity change from 0 to 4096
[ 190.301193][ T5793] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 190.309360][ T5793] NILFS (loop0): trying rollback from an earlier position
[ 190.324247][ T5793] NILFS (loop0): recovery complete
[pid 5793] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5793] chdir("./file0") = 0
[pid 5793] ioctl(4, LOOP_CLR_FD) = 0
[pid 5793] close(4) = 0
[pid 5793] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5793] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 190.332166][ T5794] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5793] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5793] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5793] exit_group(0) = ?
[pid 5793] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5793, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./362", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./362", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./362/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./362/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./362/binderfs") = 0
umount2("./362/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./362/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./362/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./362/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./362/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./362/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./362") = 0
mkdir("./363", 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=0x555555db65d0) = 5795
./strace-static-x86_64: Process 5795 attached
[pid 5795] chdir("./363") = 0
[pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5795] setpgid(0, 0) = 0
[pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5795] write(3, "1000", 4) = 4
[pid 5795] close(3) = 0
[pid 5795] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5795] memfd_create("syzkaller", 0) = 3
[pid 5795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5795] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5795] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5795] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5795] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5795] close(3) = 0
[pid 5795] mkdir("./file0", 0777) = 0
[ 190.660326][ T5795] loop0: detected capacity change from 0 to 4096
[ 190.678733][ T5795] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 190.686825][ T5795] NILFS (loop0): trying rollback from an earlier position
[ 190.701663][ T5795] NILFS (loop0): recovery complete
[pid 5795] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5795] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5795] chdir("./file0") = 0
[pid 5795] ioctl(4, LOOP_CLR_FD) = 0
[pid 5795] close(4) = 0
[pid 5795] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5795] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 190.708438][ T5796] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 190.722229][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 190.722264][ T27] audit: type=1800 audit(1676306878.488:365): pid=5795 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5795] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5795] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5795] exit_group(0) = ?
[pid 5795] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./363", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./363", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./363/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./363/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./363/binderfs") = 0
umount2("./363/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./363/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./363/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./363/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./363/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./363/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./363") = 0
mkdir("./364", 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=0x555555db65d0) = 5797
./strace-static-x86_64: Process 5797 attached
[pid 5797] chdir("./364") = 0
[pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5797] setpgid(0, 0) = 0
[pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5797] write(3, "1000", 4) = 4
[pid 5797] close(3) = 0
[pid 5797] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5797] memfd_create("syzkaller", 0) = 3
[pid 5797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5797] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5797] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5797] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5797] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5797] close(3) = 0
[pid 5797] mkdir("./file0", 0777) = 0
[ 191.024930][ T5797] loop0: detected capacity change from 0 to 4096
[ 191.040958][ T5797] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 191.049080][ T5797] NILFS (loop0): trying rollback from an earlier position
[ 191.062969][ T5797] NILFS (loop0): recovery complete
[pid 5797] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5797] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5797] chdir("./file0") = 0
[pid 5797] ioctl(4, LOOP_CLR_FD) = 0
[pid 5797] close(4) = 0
[pid 5797] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5797] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 191.068874][ T5798] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 191.082335][ T27] audit: type=1800 audit(1676306878.848:366): pid=5797 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5797] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5797] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5797] exit_group(0) = ?
[pid 5797] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./364", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./364", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./364/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./364/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./364/binderfs") = 0
umount2("./364/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./364/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./364/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./364/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./364/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./364/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./364") = 0
mkdir("./365", 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=0x555555db65d0) = 5799
./strace-static-x86_64: Process 5799 attached
[pid 5799] chdir("./365") = 0
[pid 5799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5799] setpgid(0, 0) = 0
[pid 5799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5799] write(3, "1000", 4) = 4
[pid 5799] close(3) = 0
[pid 5799] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5799] memfd_create("syzkaller", 0) = 3
[pid 5799] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5799] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5799] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5799] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5799] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5799] close(3) = 0
[pid 5799] mkdir("./file0", 0777) = 0
[pid 5799] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5799] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5799] chdir("./file0") = 0
[pid 5799] ioctl(4, LOOP_CLR_FD) = 0
[pid 5799] close(4) = 0
[ 191.400788][ T5799] loop0: detected capacity change from 0 to 4096
[ 191.417636][ T5799] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 191.425733][ T5799] NILFS (loop0): trying rollback from an earlier position
[ 191.440649][ T5799] NILFS (loop0): recovery complete
[pid 5799] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5799] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 191.454259][ T27] audit: type=1800 audit(1676306879.208:367): pid=5799 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[ 191.463756][ T5800] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5799] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5799] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5799] exit_group(0) = ?
[pid 5799] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5799, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./365", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./365", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./365/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./365/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./365/binderfs") = 0
umount2("./365/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./365/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./365/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./365/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./365/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./365/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./365") = 0
mkdir("./366", 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=0x555555db65d0) = 5801
./strace-static-x86_64: Process 5801 attached
[pid 5801] chdir("./366") = 0
[pid 5801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5801] setpgid(0, 0) = 0
[pid 5801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5801] write(3, "1000", 4) = 4
[pid 5801] close(3) = 0
[pid 5801] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5801] memfd_create("syzkaller", 0) = 3
[pid 5801] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5801] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5801] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5801] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5801] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5801] close(3) = 0
[pid 5801] mkdir("./file0", 0777) = 0
[ 191.763481][ T5801] loop0: detected capacity change from 0 to 4096
[ 191.779686][ T5801] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 191.787786][ T5801] NILFS (loop0): trying rollback from an earlier position
[ 191.802365][ T5801] NILFS (loop0): recovery complete
[pid 5801] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5801] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5801] chdir("./file0") = 0
[pid 5801] ioctl(4, LOOP_CLR_FD) = 0
[pid 5801] close(4) = 0
[pid 5801] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5801] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 191.809144][ T5802] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 191.819513][ T27] audit: type=1800 audit(1676306879.568:368): pid=5801 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5801] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5801] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5801] exit_group(0) = ?
[pid 5801] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5801, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./366", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./366", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./366/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./366/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./366/binderfs") = 0
umount2("./366/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./366/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./366/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./366/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./366/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./366/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./366") = 0
mkdir("./367", 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=0x555555db65d0) = 5803
./strace-static-x86_64: Process 5803 attached
[pid 5803] chdir("./367") = 0
[pid 5803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5803] setpgid(0, 0) = 0
[pid 5803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5803] write(3, "1000", 4) = 4
[pid 5803] close(3) = 0
[pid 5803] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5803] memfd_create("syzkaller", 0) = 3
[pid 5803] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5803] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5803] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5803] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5803] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5803] close(3) = 0
[pid 5803] mkdir("./file0", 0777) = 0
[ 192.125373][ T5803] loop0: detected capacity change from 0 to 4096
[ 192.151917][ T5803] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 192.159986][ T5803] NILFS (loop0): trying rollback from an earlier position
[pid 5803] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5803] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5803] chdir("./file0") = 0
[pid 5803] ioctl(4, LOOP_CLR_FD) = 0
[pid 5803] close(4) = 0
[pid 5803] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5803] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 192.174059][ T5803] NILFS (loop0): recovery complete
[ 192.181239][ T5804] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 192.193707][ T27] audit: type=1800 audit(1676306879.958:369): pid=5803 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5803] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5803] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5803] exit_group(0) = ?
[pid 5803] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5803, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./367", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./367", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./367/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./367/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./367/binderfs") = 0
umount2("./367/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./367/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./367/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./367/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./367/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./367/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./367") = 0
mkdir("./368", 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=0x555555db65d0) = 5805
./strace-static-x86_64: Process 5805 attached
[pid 5805] chdir("./368") = 0
[pid 5805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5805] setpgid(0, 0) = 0
[pid 5805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5805] write(3, "1000", 4) = 4
[pid 5805] close(3) = 0
[pid 5805] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5805] memfd_create("syzkaller", 0) = 3
[pid 5805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5805] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5805] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5805] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5805] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5805] close(3) = 0
[pid 5805] mkdir("./file0", 0777) = 0
[pid 5805] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 192.477698][ T5805] loop0: detected capacity change from 0 to 4096
[ 192.493012][ T5805] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 192.501168][ T5805] NILFS (loop0): trying rollback from an earlier position
[ 192.515641][ T5805] NILFS (loop0): recovery complete
[pid 5805] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5805] chdir("./file0") = 0
[pid 5805] ioctl(4, LOOP_CLR_FD) = 0
[pid 5805] close(4) = 0
[pid 5805] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5805] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 192.521860][ T5806] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 192.537201][ T27] audit: type=1800 audit(1676306880.288:370): pid=5805 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5805] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5805] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5805] exit_group(0) = ?
[pid 5805] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5805, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./368", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./368", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./368/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./368/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./368/binderfs") = 0
umount2("./368/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./368/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./368/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./368/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./368/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./368/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./368") = 0
mkdir("./369", 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 5807 attached
<unfinished ...>
[pid 5807] chdir("./369") = 0
[pid 5807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5807] setpgid(0, 0) = 0
[pid 5807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5807] write(3, "1000", 4) = 4
[pid 5807] close(3) = 0
[pid 5807] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5807] memfd_create("syzkaller", 0) = 3
[pid 5807] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5060] <... clone resumed>, child_tidptr=0x555555db65d0) = 5807
[pid 5807] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5807] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5807] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5807] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5807] close(3) = 0
[pid 5807] mkdir("./file0", 0777) = 0
[pid 5807] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5807] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5807] chdir("./file0") = 0
[pid 5807] ioctl(4, LOOP_CLR_FD) = 0
[pid 5807] close(4) = 0
[pid 5807] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[ 192.825403][ T5807] loop0: detected capacity change from 0 to 4096
[ 192.841196][ T5807] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 192.849248][ T5807] NILFS (loop0): trying rollback from an earlier position
[ 192.862527][ T5807] NILFS (loop0): recovery complete
[pid 5807] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 192.868848][ T5808] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 192.886168][ T27] audit: type=1800 audit(1676306880.628:371): pid=5807 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5807] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5807] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5807] exit_group(0) = ?
[pid 5807] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5807, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./369", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./369", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./369/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./369/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./369/binderfs") = 0
umount2("./369/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./369/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./369/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./369/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./369/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./369/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./369") = 0
mkdir("./370", 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=0x555555db65d0) = 5809
./strace-static-x86_64: Process 5809 attached
[pid 5809] chdir("./370") = 0
[pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5809] setpgid(0, 0) = 0
[pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5809] write(3, "1000", 4) = 4
[pid 5809] close(3) = 0
[pid 5809] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5809] memfd_create("syzkaller", 0) = 3
[pid 5809] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5809] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5809] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5809] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5809] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5809] close(3) = 0
[pid 5809] mkdir("./file0", 0777) = 0
[ 193.173602][ T5809] loop0: detected capacity change from 0 to 4096
[ 193.190527][ T5809] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 193.198637][ T5809] NILFS (loop0): trying rollback from an earlier position
[ 193.213047][ T5809] NILFS (loop0): recovery complete
[pid 5809] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5809] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5809] chdir("./file0") = 0
[pid 5809] ioctl(4, LOOP_CLR_FD) = 0
[pid 5809] close(4) = 0
[pid 5809] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5809] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 193.219052][ T5810] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 193.236201][ T27] audit: type=1800 audit(1676306880.988:372): pid=5809 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5809] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5809] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5809] exit_group(0) = ?
[pid 5809] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
umount2("./370", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./370", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./370/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./370/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./370/binderfs") = 0
umount2("./370/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./370/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./370/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./370/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./370/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./370/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./370") = 0
mkdir("./371", 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=0x555555db65d0) = 5811
./strace-static-x86_64: Process 5811 attached
[pid 5811] chdir("./371") = 0
[pid 5811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5811] setpgid(0, 0) = 0
[pid 5811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5811] write(3, "1000", 4) = 4
[pid 5811] close(3) = 0
[pid 5811] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5811] memfd_create("syzkaller", 0) = 3
[pid 5811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5811] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5811] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5811] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5811] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5811] close(3) = 0
[pid 5811] mkdir("./file0", 0777) = 0
[ 193.525513][ T5811] loop0: detected capacity change from 0 to 4096
[ 193.542699][ T5811] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 193.550785][ T5811] NILFS (loop0): trying rollback from an earlier position
[ 193.564778][ T5811] NILFS (loop0): recovery complete
[pid 5811] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5811] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5811] chdir("./file0") = 0
[pid 5811] ioctl(4, LOOP_CLR_FD) = 0
[pid 5811] close(4) = 0
[pid 5811] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5811] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 193.570847][ T5812] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 193.585317][ T27] audit: type=1800 audit(1676306881.338:373): pid=5811 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5811] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5811] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5811] exit_group(0) = ?
[pid 5811] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5811, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./371", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./371", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./371/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./371/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./371/binderfs") = 0
umount2("./371/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./371/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./371/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./371/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./371/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./371/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./371") = 0
mkdir("./372", 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=0x555555db65d0) = 5813
./strace-static-x86_64: Process 5813 attached
[pid 5813] chdir("./372") = 0
[pid 5813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5813] setpgid(0, 0) = 0
[pid 5813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5813] write(3, "1000", 4) = 4
[pid 5813] close(3) = 0
[pid 5813] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5813] memfd_create("syzkaller", 0) = 3
[pid 5813] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5813] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5813] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5813] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5813] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5813] close(3) = 0
[pid 5813] mkdir("./file0", 0777) = 0
[pid 5813] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5813] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5813] chdir("./file0") = 0
[pid 5813] ioctl(4, LOOP_CLR_FD) = 0
[pid 5813] close(4) = 0
[ 193.887037][ T5813] loop0: detected capacity change from 0 to 4096
[ 193.903708][ T5813] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 193.911816][ T5813] NILFS (loop0): trying rollback from an earlier position
[ 193.925867][ T5813] NILFS (loop0): recovery complete
[pid 5813] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5813] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 193.932152][ T5814] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 193.938325][ T27] audit: type=1800 audit(1676306881.698:374): pid=5813 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5813] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5813] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5813] exit_group(0) = ?
[pid 5813] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5813, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./372", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./372", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./372/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./372/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./372/binderfs") = 0
umount2("./372/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./372/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./372/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./372/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./372/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./372/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./372") = 0
mkdir("./373", 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=0x555555db65d0) = 5815
./strace-static-x86_64: Process 5815 attached
[pid 5815] chdir("./373") = 0
[pid 5815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5815] setpgid(0, 0) = 0
[pid 5815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5815] write(3, "1000", 4) = 4
[pid 5815] close(3) = 0
[pid 5815] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5815] memfd_create("syzkaller", 0) = 3
[pid 5815] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5815] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5815] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5815] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5815] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5815] close(3) = 0
[pid 5815] mkdir("./file0", 0777) = 0
[pid 5815] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 194.248587][ T5815] loop0: detected capacity change from 0 to 4096
[ 194.263906][ T5815] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 194.271965][ T5815] NILFS (loop0): trying rollback from an earlier position
[ 194.289311][ T5815] NILFS (loop0): recovery complete
[pid 5815] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5815] chdir("./file0") = 0
[pid 5815] ioctl(4, LOOP_CLR_FD) = 0
[pid 5815] close(4) = 0
[pid 5815] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5815] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 194.295390][ T5816] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5815] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5815] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5815] exit_group(0) = ?
[pid 5815] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5815, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./373", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./373", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./373/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./373/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./373/binderfs") = 0
umount2("./373/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./373/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./373/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./373/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./373/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./373/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./373") = 0
mkdir("./374", 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=0x555555db65d0) = 5817
./strace-static-x86_64: Process 5817 attached
[pid 5817] chdir("./374") = 0
[pid 5817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5817] setpgid(0, 0) = 0
[pid 5817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5817] write(3, "1000", 4) = 4
[pid 5817] close(3) = 0
[pid 5817] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5817] memfd_create("syzkaller", 0) = 3
[pid 5817] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5817] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5817] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5817] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5817] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5817] close(3) = 0
[pid 5817] mkdir("./file0", 0777) = 0
[pid 5817] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5817] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 194.586303][ T5817] loop0: detected capacity change from 0 to 4096
[ 194.601477][ T5817] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 194.609746][ T5817] NILFS (loop0): trying rollback from an earlier position
[ 194.624173][ T5817] NILFS (loop0): recovery complete
[pid 5817] chdir("./file0") = 0
[pid 5817] ioctl(4, LOOP_CLR_FD) = 0
[pid 5817] close(4) = 0
[pid 5817] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5817] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 194.630883][ T5818] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5817] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5817] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5817] exit_group(0) = ?
[pid 5817] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5817, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./374", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./374", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./374/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./374/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./374/binderfs") = 0
umount2("./374/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./374/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./374/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./374/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./374/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./374/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./374") = 0
mkdir("./375", 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=0x555555db65d0) = 5819
./strace-static-x86_64: Process 5819 attached
[pid 5819] chdir("./375") = 0
[pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5819] setpgid(0, 0) = 0
[pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5819] write(3, "1000", 4) = 4
[pid 5819] close(3) = 0
[pid 5819] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5819] memfd_create("syzkaller", 0) = 3
[pid 5819] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5819] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5819] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5819] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5819] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5819] close(3) = 0
[pid 5819] mkdir("./file0", 0777) = 0
[pid 5819] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5819] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5819] chdir("./file0") = 0
[pid 5819] ioctl(4, LOOP_CLR_FD) = 0
[ 194.915657][ T5819] loop0: detected capacity change from 0 to 4096
[ 194.931817][ T5819] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 194.939878][ T5819] NILFS (loop0): trying rollback from an earlier position
[ 194.953617][ T5819] NILFS (loop0): recovery complete
[pid 5819] close(4) = 0
[pid 5819] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5819] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 194.959648][ T5820] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5819] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5819] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5819] exit_group(0) = ?
[pid 5819] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5819, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./375", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./375", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./375/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./375/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./375/binderfs") = 0
umount2("./375/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./375/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./375/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./375/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./375/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./375/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./375") = 0
mkdir("./376", 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=0x555555db65d0) = 5821
./strace-static-x86_64: Process 5821 attached
[pid 5821] chdir("./376") = 0
[pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5821] setpgid(0, 0) = 0
[pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5821] write(3, "1000", 4) = 4
[pid 5821] close(3) = 0
[pid 5821] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5821] memfd_create("syzkaller", 0) = 3
[pid 5821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5821] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5821] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5821] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5821] close(3) = 0
[pid 5821] mkdir("./file0", 0777) = 0
[ 195.247450][ T5821] loop0: detected capacity change from 0 to 4096
[ 195.263752][ T5821] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 195.271807][ T5821] NILFS (loop0): trying rollback from an earlier position
[ 195.286234][ T5821] NILFS (loop0): recovery complete
[pid 5821] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5821] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5821] chdir("./file0") = 0
[pid 5821] ioctl(4, LOOP_CLR_FD) = 0
[pid 5821] close(4) = 0
[pid 5821] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5821] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 195.292115][ T5822] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5821] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5821] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5821] exit_group(0) = ?
[pid 5821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5821, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./376", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./376", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./376/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./376/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./376/binderfs") = 0
umount2("./376/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./376/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./376/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./376/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./376/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./376/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./376") = 0
mkdir("./377", 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=0x555555db65d0) = 5823
./strace-static-x86_64: Process 5823 attached
[pid 5823] chdir("./377") = 0
[pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5823] setpgid(0, 0) = 0
[pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5823] write(3, "1000", 4) = 4
[pid 5823] close(3) = 0
[pid 5823] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5823] memfd_create("syzkaller", 0) = 3
[pid 5823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5823] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5823] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5823] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5823] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5823] close(3) = 0
[pid 5823] mkdir("./file0", 0777) = 0
[ 195.568921][ T5823] loop0: detected capacity change from 0 to 4096
[ 195.584228][ T5823] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 195.592309][ T5823] NILFS (loop0): trying rollback from an earlier position
[ 195.606401][ T5823] NILFS (loop0): recovery complete
[pid 5823] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5823] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5823] chdir("./file0") = 0
[pid 5823] ioctl(4, LOOP_CLR_FD) = 0
[pid 5823] close(4) = 0
[pid 5823] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5823] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 195.612621][ T5824] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5823] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5823] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5823] exit_group(0) = ?
[pid 5823] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5823, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./377", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./377", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./377/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./377/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./377/binderfs") = 0
umount2("./377/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./377/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./377/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./377/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./377/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./377/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./377") = 0
mkdir("./378", 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=0x555555db65d0) = 5825
./strace-static-x86_64: Process 5825 attached
[pid 5825] chdir("./378") = 0
[pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5825] setpgid(0, 0) = 0
[pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5825] write(3, "1000", 4) = 4
[pid 5825] close(3) = 0
[pid 5825] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5825] memfd_create("syzkaller", 0) = 3
[pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5825] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5825] close(3) = 0
[pid 5825] mkdir("./file0", 0777) = 0
[pid 5825] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5825] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5825] chdir("./file0") = 0
[pid 5825] ioctl(4, LOOP_CLR_FD) = 0
[ 195.900495][ T5825] loop0: detected capacity change from 0 to 4096
[ 195.916903][ T5825] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 195.925047][ T5825] NILFS (loop0): trying rollback from an earlier position
[ 195.939238][ T5825] NILFS (loop0): recovery complete
[pid 5825] close(4) = 0
[pid 5825] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5825] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 195.945367][ T5826] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 195.969140][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 195.969154][ T27] audit: type=1800 audit(1676306883.708:380): pid=5825 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5825] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5825] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5825] exit_group(0) = ?
[pid 5825] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5825, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
umount2("./378", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./378", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./378/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./378/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./378/binderfs") = 0
umount2("./378/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./378/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./378/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./378/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./378/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./378/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./378") = 0
mkdir("./379", 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=0x555555db65d0) = 5827
./strace-static-x86_64: Process 5827 attached
[pid 5827] chdir("./379") = 0
[pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5827] setpgid(0, 0) = 0
[pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5827] write(3, "1000", 4) = 4
[pid 5827] close(3) = 0
[pid 5827] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5827] memfd_create("syzkaller", 0) = 3
[pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5827] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5827] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5827] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5827] close(3) = 0
[pid 5827] mkdir("./file0", 0777) = 0
[ 196.261996][ T5827] loop0: detected capacity change from 0 to 4096
[ 196.277510][ T5827] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 196.285529][ T5827] NILFS (loop0): trying rollback from an earlier position
[ 196.300381][ T5827] NILFS (loop0): recovery complete
[pid 5827] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5827] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5827] chdir("./file0") = 0
[pid 5827] ioctl(4, LOOP_CLR_FD) = 0
[pid 5827] close(4) = 0
[pid 5827] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5827] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 196.306502][ T5828] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 196.328572][ T27] audit: type=1800 audit(1676306884.088:381): pid=5827 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5827] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5827] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5827] exit_group(0) = ?
[pid 5827] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./379", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./379", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./379/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./379/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./379/binderfs") = 0
umount2("./379/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./379/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./379/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./379/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./379/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./379/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./379") = 0
mkdir("./380", 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=0x555555db65d0) = 5829
./strace-static-x86_64: Process 5829 attached
[pid 5829] chdir("./380") = 0
[pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5829] setpgid(0, 0) = 0
[pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5829] write(3, "1000", 4) = 4
[pid 5829] close(3) = 0
[pid 5829] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5829] memfd_create("syzkaller", 0) = 3
[pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5829] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5829] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5829] close(3) = 0
[pid 5829] mkdir("./file0", 0777) = 0
[pid 5829] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5829] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5829] chdir("./file0") = 0
[ 196.622405][ T5829] loop0: detected capacity change from 0 to 4096
[ 196.640522][ T5829] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 196.648583][ T5829] NILFS (loop0): trying rollback from an earlier position
[ 196.663577][ T5829] NILFS (loop0): recovery complete
[pid 5829] ioctl(4, LOOP_CLR_FD) = 0
[pid 5829] close(4) = 0
[pid 5829] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5829] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 196.669751][ T5830] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 196.687399][ T27] audit: type=1800 audit(1676306884.438:382): pid=5829 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5829] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5829] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5829] exit_group(0) = ?
[pid 5829] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./380", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./380", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./380/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./380/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./380/binderfs") = 0
umount2("./380/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./380/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./380/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./380/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./380/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./380/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./380") = 0
mkdir("./381", 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=0x555555db65d0) = 5831
./strace-static-x86_64: Process 5831 attached
[pid 5831] chdir("./381") = 0
[pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5831] setpgid(0, 0) = 0
[pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5831] write(3, "1000", 4) = 4
[pid 5831] close(3) = 0
[pid 5831] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5831] memfd_create("syzkaller", 0) = 3
[pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5831] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5831] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5831] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5831] close(3) = 0
[pid 5831] mkdir("./file0", 0777) = 0
[pid 5831] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5831] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5831] chdir("./file0") = 0
[ 196.970056][ T5831] loop0: detected capacity change from 0 to 4096
[ 196.986958][ T5831] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 196.995019][ T5831] NILFS (loop0): trying rollback from an earlier position
[ 197.008967][ T5831] NILFS (loop0): recovery complete
[pid 5831] ioctl(4, LOOP_CLR_FD) = 0
[pid 5831] close(4) = 0
[pid 5831] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5831] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 197.015541][ T5832] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 197.027516][ T27] audit: type=1800 audit(1676306884.788:383): pid=5831 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5831] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5831] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5831] exit_group(0) = ?
[pid 5831] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5831, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./381", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./381", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./381/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./381/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./381/binderfs") = 0
umount2("./381/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./381/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./381/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./381/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./381/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./381/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./381") = 0
mkdir("./382", 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=0x555555db65d0) = 5833
./strace-static-x86_64: Process 5833 attached
[pid 5833] chdir("./382") = 0
[pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5833] setpgid(0, 0) = 0
[pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5833] write(3, "1000", 4) = 4
[pid 5833] close(3) = 0
[pid 5833] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5833] memfd_create("syzkaller", 0) = 3
[pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5833] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5833] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5833] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5833] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5833] close(3) = 0
[pid 5833] mkdir("./file0", 0777) = 0
[pid 5833] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5833] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5833] chdir("./file0") = 0
[pid 5833] ioctl(4, LOOP_CLR_FD) = 0
[pid 5833] close(4) = 0
[ 197.332151][ T5833] loop0: detected capacity change from 0 to 4096
[ 197.348037][ T5833] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 197.356095][ T5833] NILFS (loop0): trying rollback from an earlier position
[ 197.368780][ T5833] NILFS (loop0): recovery complete
[pid 5833] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5833] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 197.374542][ T5834] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 197.395754][ T27] audit: type=1800 audit(1676306885.138:384): pid=5833 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5833] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5833] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5833] exit_group(0) = ?
[pid 5833] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./382", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./382", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./382/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./382/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./382/binderfs") = 0
umount2("./382/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./382/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./382/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./382/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./382/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./382/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./382") = 0
mkdir("./383", 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=0x555555db65d0) = 5835
./strace-static-x86_64: Process 5835 attached
[pid 5835] chdir("./383") = 0
[pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5835] setpgid(0, 0) = 0
[pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5835] write(3, "1000", 4) = 4
[pid 5835] close(3) = 0
[pid 5835] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5835] memfd_create("syzkaller", 0) = 3
[pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5835] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5835] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5835] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5835] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5835] close(3) = 0
[pid 5835] mkdir("./file0", 0777) = 0
[ 197.659697][ T5835] loop0: detected capacity change from 0 to 4096
[ 197.675234][ T5835] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 197.683341][ T5835] NILFS (loop0): trying rollback from an earlier position
[ 197.697253][ T5835] NILFS (loop0): recovery complete
[pid 5835] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5835] chdir("./file0") = 0
[pid 5835] ioctl(4, LOOP_CLR_FD) = 0
[pid 5835] close(4) = 0
[pid 5835] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5835] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 197.703637][ T5836] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 197.724475][ T27] audit: type=1800 audit(1676306885.458:385): pid=5835 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5835] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5835] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5835] exit_group(0) = ?
[pid 5835] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./383", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./383", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./383/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./383/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./383/binderfs") = 0
umount2("./383/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./383/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./383/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./383/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./383/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./383/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./383") = 0
mkdir("./384", 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=0x555555db65d0) = 5837
./strace-static-x86_64: Process 5837 attached
[pid 5837] chdir("./384") = 0
[pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5837] setpgid(0, 0) = 0
[pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5837] write(3, "1000", 4) = 4
[pid 5837] close(3) = 0
[pid 5837] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5837] memfd_create("syzkaller", 0) = 3
[pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5837] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5837] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5837] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5837] close(3) = 0
[pid 5837] mkdir("./file0", 0777) = 0
[ 198.015981][ T5837] loop0: detected capacity change from 0 to 4096
[ 198.032644][ T5837] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 198.040729][ T5837] NILFS (loop0): trying rollback from an earlier position
[ 198.055445][ T5837] NILFS (loop0): recovery complete
[pid 5837] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5837] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5837] chdir("./file0") = 0
[pid 5837] ioctl(4, LOOP_CLR_FD) = 0
[pid 5837] close(4) = 0
[pid 5837] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5837] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 198.061517][ T5838] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 198.076187][ T27] audit: type=1800 audit(1676306885.818:386): pid=5837 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5837] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5837] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5837] exit_group(0) = ?
[pid 5837] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5837, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./384", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./384", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./384/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./384/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./384/binderfs") = 0
umount2("./384/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./384/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./384/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./384/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./384/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./384/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./384") = 0
mkdir("./385", 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=0x555555db65d0) = 5839
./strace-static-x86_64: Process 5839 attached
[pid 5839] chdir("./385") = 0
[pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5839] setpgid(0, 0) = 0
[pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5839] write(3, "1000", 4) = 4
[pid 5839] close(3) = 0
[pid 5839] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5839] memfd_create("syzkaller", 0) = 3
[pid 5839] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5839] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5839] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5839] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5839] close(3) = 0
[pid 5839] mkdir("./file0", 0777) = 0
[pid 5839] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 198.346757][ T5839] loop0: detected capacity change from 0 to 4096
[ 198.364495][ T5839] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 198.372609][ T5839] NILFS (loop0): trying rollback from an earlier position
[ 198.386549][ T5839] NILFS (loop0): recovery complete
[pid 5839] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5839] chdir("./file0") = 0
[pid 5839] ioctl(4, LOOP_CLR_FD) = 0
[pid 5839] close(4) = 0
[pid 5839] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5839] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 198.392539][ T5840] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 198.405680][ T27] audit: type=1800 audit(1676306886.158:387): pid=5839 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5839] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5839] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5839] exit_group(0) = ?
[pid 5839] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5839, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./385", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./385", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./385/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./385/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./385/binderfs") = 0
umount2("./385/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./385/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./385/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./385/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./385/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./385/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./385") = 0
mkdir("./386", 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=0x555555db65d0) = 5841
./strace-static-x86_64: Process 5841 attached
[pid 5841] chdir("./386") = 0
[pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5841] setpgid(0, 0) = 0
[pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5841] write(3, "1000", 4) = 4
[pid 5841] close(3) = 0
[pid 5841] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5841] memfd_create("syzkaller", 0) = 3
[pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5841] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5841] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5841] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5841] close(3) = 0
[pid 5841] mkdir("./file0", 0777) = 0
[pid 5841] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5841] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5841] chdir("./file0") = 0
[pid 5841] ioctl(4, LOOP_CLR_FD) = 0
[pid 5841] close(4) = 0
[ 198.704233][ T5841] loop0: detected capacity change from 0 to 4096
[ 198.721289][ T5841] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 198.729351][ T5841] NILFS (loop0): trying rollback from an earlier position
[ 198.742090][ T5841] NILFS (loop0): recovery complete
[pid 5841] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5841] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 198.749061][ T5842] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 198.760646][ T27] audit: type=1800 audit(1676306886.528:388): pid=5841 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5841] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5841] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5841] exit_group(0) = ?
[pid 5841] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./386", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./386", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./386/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./386/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./386/binderfs") = 0
umount2("./386/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./386/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./386/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./386/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./386/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./386/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./386") = 0
mkdir("./387", 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=0x555555db65d0) = 5843
./strace-static-x86_64: Process 5843 attached
[pid 5843] chdir("./387") = 0
[pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5843] setpgid(0, 0) = 0
[pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5843] write(3, "1000", 4) = 4
[pid 5843] close(3) = 0
[pid 5843] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5843] memfd_create("syzkaller", 0) = 3
[pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5843] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5843] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5843] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5843] close(3) = 0
[pid 5843] mkdir("./file0", 0777) = 0
[ 199.115790][ T5843] loop0: detected capacity change from 0 to 4096
[ 199.142661][ T5843] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 199.151306][ T5843] NILFS (loop0): trying rollback from an earlier position
[pid 5843] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5843] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5843] chdir("./file0") = 0
[pid 5843] ioctl(4, LOOP_CLR_FD) = 0
[pid 5843] close(4) = 0
[pid 5843] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5843] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 199.167994][ T5843] NILFS (loop0): recovery complete
[ 199.175316][ T5844] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 199.198528][ T27] audit: type=1800 audit(1676306886.958:389): pid=5843 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5843] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5843] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5843] exit_group(0) = ?
[pid 5843] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./387", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./387", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./387/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./387/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./387/binderfs") = 0
umount2("./387/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./387/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./387/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./387/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./387/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./387/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./387") = 0
mkdir("./388", 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=0x555555db65d0) = 5845
./strace-static-x86_64: Process 5845 attached
[pid 5845] chdir("./388") = 0
[pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5845] setpgid(0, 0) = 0
[pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5845] write(3, "1000", 4) = 4
[pid 5845] close(3) = 0
[pid 5845] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5845] memfd_create("syzkaller", 0) = 3
[pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5845] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5845] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5845] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5845] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5845] close(3) = 0
[pid 5845] mkdir("./file0", 0777) = 0
[ 199.619737][ T5845] loop0: detected capacity change from 0 to 4096
[ 199.635654][ T5845] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 199.643893][ T5845] NILFS (loop0): trying rollback from an earlier position
[ 199.659590][ T5845] NILFS (loop0): recovery complete
[pid 5845] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5845] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5845] chdir("./file0") = 0
[pid 5845] ioctl(4, LOOP_CLR_FD) = 0
[pid 5845] close(4) = 0
[pid 5845] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5845] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 199.665372][ T5846] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5845] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5845] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5845] exit_group(0) = ?
[pid 5845] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
umount2("./388", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./388", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./388/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./388/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./388/binderfs") = 0
umount2("./388/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./388/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./388/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./388/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./388/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./388/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./388") = 0
mkdir("./389", 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=0x555555db65d0) = 5847
./strace-static-x86_64: Process 5847 attached
[pid 5847] chdir("./389") = 0
[pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5847] setpgid(0, 0) = 0
[pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5847] write(3, "1000", 4) = 4
[pid 5847] close(3) = 0
[pid 5847] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5847] memfd_create("syzkaller", 0) = 3
[pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5847] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5847] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5847] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5847] close(3) = 0
[pid 5847] mkdir("./file0", 0777) = 0
[ 199.964999][ T5847] loop0: detected capacity change from 0 to 4096
[ 199.980894][ T5847] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 199.989029][ T5847] NILFS (loop0): trying rollback from an earlier position
[ 200.002716][ T5847] NILFS (loop0): recovery complete
[pid 5847] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5847] chdir("./file0") = 0
[pid 5847] ioctl(4, LOOP_CLR_FD) = 0
[pid 5847] close(4) = 0
[pid 5847] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5847] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 200.008503][ T5848] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5847] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5847] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5847] exit_group(0) = ?
[pid 5847] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./389", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./389", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./389/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./389/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./389/binderfs") = 0
umount2("./389/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./389/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./389/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./389/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./389/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./389/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./389") = 0
mkdir("./390", 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=0x555555db65d0) = 5849
./strace-static-x86_64: Process 5849 attached
[pid 5849] chdir("./390") = 0
[pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5849] setpgid(0, 0) = 0
[pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5849] write(3, "1000", 4) = 4
[pid 5849] close(3) = 0
[pid 5849] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5849] memfd_create("syzkaller", 0) = 3
[pid 5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5849] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5849] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5849] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5849] close(3) = 0
[pid 5849] mkdir("./file0", 0777) = 0
[ 200.284997][ T5849] loop0: detected capacity change from 0 to 4096
[ 200.302183][ T5849] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 200.310271][ T5849] NILFS (loop0): trying rollback from an earlier position
[ 200.323597][ T5849] NILFS (loop0): recovery complete
[pid 5849] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5849] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5849] chdir("./file0") = 0
[pid 5849] ioctl(4, LOOP_CLR_FD) = 0
[pid 5849] close(4) = 0
[pid 5849] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5849] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 200.329666][ T5850] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5849] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5849] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5849] exit_group(0) = ?
[pid 5849] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5849, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./390", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./390", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./390/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./390/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./390/binderfs") = 0
umount2("./390/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./390/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./390/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./390/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./390/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./390/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./390") = 0
mkdir("./391", 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=0x555555db65d0) = 5851
./strace-static-x86_64: Process 5851 attached
[pid 5851] chdir("./391") = 0
[pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5851] setpgid(0, 0) = 0
[pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5851] write(3, "1000", 4) = 4
[pid 5851] close(3) = 0
[pid 5851] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5851] memfd_create("syzkaller", 0) = 3
[pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5851] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5851] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5851] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5851] close(3) = 0
[pid 5851] mkdir("./file0", 0777) = 0
[ 200.610672][ T5851] loop0: detected capacity change from 0 to 4096
[ 200.626430][ T5851] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 200.634487][ T5851] NILFS (loop0): trying rollback from an earlier position
[ 200.648098][ T5851] NILFS (loop0): recovery complete
[pid 5851] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5851] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5851] chdir("./file0") = 0
[pid 5851] ioctl(4, LOOP_CLR_FD) = 0
[pid 5851] close(4) = 0
[pid 5851] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5851] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 200.654040][ T5852] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5851] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5851] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5851] exit_group(0) = ?
[pid 5851] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5851, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./391", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./391", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./391/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./391/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./391/binderfs") = 0
umount2("./391/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./391/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./391/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./391/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./391/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./391/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./391") = 0
mkdir("./392", 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=0x555555db65d0) = 5853
./strace-static-x86_64: Process 5853 attached
[pid 5853] chdir("./392") = 0
[pid 5853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5853] setpgid(0, 0) = 0
[pid 5853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5853] write(3, "1000", 4) = 4
[pid 5853] close(3) = 0
[pid 5853] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5853] memfd_create("syzkaller", 0) = 3
[pid 5853] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5853] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5853] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5853] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5853] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5853] close(3) = 0
[pid 5853] mkdir("./file0", 0777) = 0
[pid 5853] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5853] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 200.943055][ T5853] loop0: detected capacity change from 0 to 4096
[ 200.959798][ T5853] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 200.968013][ T5853] NILFS (loop0): trying rollback from an earlier position
[ 200.983794][ T5853] NILFS (loop0): recovery complete
[pid 5853] chdir("./file0") = 0
[pid 5853] ioctl(4, LOOP_CLR_FD) = 0
[pid 5853] close(4) = 0
[pid 5853] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5853] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 200.990036][ T5854] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 201.004149][ T27] kauditd_printk_skb: 4 callbacks suppressed
[ 201.004162][ T27] audit: type=1800 audit(1676306888.758:394): pid=5853 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5853] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5853] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5853] exit_group(0) = ?
[pid 5853] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5853, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./392", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./392", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./392/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./392/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./392/binderfs") = 0
umount2("./392/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./392/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./392/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./392/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./392/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./392/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./392") = 0
mkdir("./393", 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=0x555555db65d0) = 5855
./strace-static-x86_64: Process 5855 attached
[pid 5855] chdir("./393") = 0
[pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5855] setpgid(0, 0) = 0
[pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5855] write(3, "1000", 4) = 4
[pid 5855] close(3) = 0
[pid 5855] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5855] memfd_create("syzkaller", 0) = 3
[pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5855] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5855] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5855] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5855] close(3) = 0
[pid 5855] mkdir("./file0", 0777) = 0
[pid 5855] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5855] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5855] chdir("./file0") = 0
[ 201.297513][ T5855] loop0: detected capacity change from 0 to 4096
[ 201.314785][ T5855] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 201.322951][ T5855] NILFS (loop0): trying rollback from an earlier position
[ 201.336768][ T5855] NILFS (loop0): recovery complete
[pid 5855] ioctl(4, LOOP_CLR_FD) = 0
[pid 5855] close(4) = 0
[pid 5855] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5855] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 201.342978][ T5856] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 201.356154][ T27] audit: type=1800 audit(1676306889.108:395): pid=5855 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5855] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5855] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5855] exit_group(0) = ?
[pid 5855] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./393", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./393", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./393/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./393/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./393/binderfs") = 0
umount2("./393/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./393/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./393/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./393/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./393/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./393/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./393") = 0
mkdir("./394", 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=0x555555db65d0) = 5857
./strace-static-x86_64: Process 5857 attached
[pid 5857] chdir("./394") = 0
[pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5857] setpgid(0, 0) = 0
[pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5857] write(3, "1000", 4) = 4
[pid 5857] close(3) = 0
[pid 5857] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5857] memfd_create("syzkaller", 0) = 3
[pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5857] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5857] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5857] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5857] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5857] close(3) = 0
[pid 5857] mkdir("./file0", 0777) = 0
[ 201.626770][ T5857] loop0: detected capacity change from 0 to 4096
[ 201.645507][ T5857] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 201.653875][ T5857] NILFS (loop0): trying rollback from an earlier position
[ 201.667924][ T5857] NILFS (loop0): recovery complete
[pid 5857] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5857] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5857] chdir("./file0") = 0
[pid 5857] ioctl(4, LOOP_CLR_FD) = 0
[pid 5857] close(4) = 0
[pid 5857] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5857] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 201.673804][ T5858] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 201.687742][ T27] audit: type=1800 audit(1676306889.448:396): pid=5857 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5857] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5857] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5857] exit_group(0) = ?
[pid 5857] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./394", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./394", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./394/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./394/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./394/binderfs") = 0
umount2("./394/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./394/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./394/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./394/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./394/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./394/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./394") = 0
mkdir("./395", 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=0x555555db65d0) = 5859
./strace-static-x86_64: Process 5859 attached
[pid 5859] chdir("./395") = 0
[pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5859] setpgid(0, 0) = 0
[pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5859] write(3, "1000", 4) = 4
[pid 5859] close(3) = 0
[pid 5859] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5859] memfd_create("syzkaller", 0) = 3
[pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5859] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5859] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5859] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5859] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5859] close(3) = 0
[pid 5859] mkdir("./file0", 0777) = 0
[ 201.982661][ T5859] loop0: detected capacity change from 0 to 4096
[ 202.000072][ T5859] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 202.008752][ T5859] NILFS (loop0): trying rollback from an earlier position
[ 202.022280][ T5859] NILFS (loop0): recovery complete
[pid 5859] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5859] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5859] chdir("./file0") = 0
[pid 5859] ioctl(4, LOOP_CLR_FD) = 0
[pid 5859] close(4) = 0
[pid 5859] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5859] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 202.028083][ T5860] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 202.040982][ T27] audit: type=1800 audit(1676306889.798:397): pid=5859 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5859] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5859] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5859] exit_group(0) = ?
[pid 5859] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./395", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./395", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./395/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./395/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./395/binderfs") = 0
umount2("./395/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./395/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./395/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./395/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./395/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./395/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./395") = 0
mkdir("./396", 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=0x555555db65d0) = 5861
./strace-static-x86_64: Process 5861 attached
[pid 5861] chdir("./396") = 0
[pid 5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5861] setpgid(0, 0) = 0
[pid 5861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5861] write(3, "1000", 4) = 4
[pid 5861] close(3) = 0
[pid 5861] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5861] memfd_create("syzkaller", 0) = 3
[pid 5861] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5861] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5861] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5861] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5861] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5861] close(3) = 0
[pid 5861] mkdir("./file0", 0777) = 0
[pid 5861] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5861] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5861] chdir("./file0") = 0
[pid 5861] ioctl(4, LOOP_CLR_FD) = 0
[pid 5861] close(4) = 0
[ 202.323997][ T5861] loop0: detected capacity change from 0 to 4096
[ 202.338825][ T5861] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 202.346877][ T5861] NILFS (loop0): trying rollback from an earlier position
[ 202.360626][ T5861] NILFS (loop0): recovery complete
[pid 5861] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5861] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 202.366592][ T5862] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 202.375852][ T27] audit: type=1800 audit(1676306890.128:398): pid=5861 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5861] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5861] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5861] exit_group(0) = ?
[pid 5861] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5861, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./396", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./396", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./396/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./396/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./396/binderfs") = 0
umount2("./396/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./396/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./396/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./396/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./396/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./396/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./396") = 0
mkdir("./397", 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=0x555555db65d0) = 5863
./strace-static-x86_64: Process 5863 attached
[pid 5863] chdir("./397") = 0
[pid 5863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5863] setpgid(0, 0) = 0
[pid 5863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5863] write(3, "1000", 4) = 4
[pid 5863] close(3) = 0
[pid 5863] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5863] memfd_create("syzkaller", 0) = 3
[pid 5863] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5863] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5863] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5863] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5863] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5863] close(3) = 0
[pid 5863] mkdir("./file0", 0777) = 0
[pid 5863] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5863] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5863] chdir("./file0") = 0
[pid 5863] ioctl(4, LOOP_CLR_FD) = 0
[pid 5863] close(4) = 0
[ 202.668739][ T5863] loop0: detected capacity change from 0 to 4096
[ 202.683632][ T5863] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 202.691750][ T5863] NILFS (loop0): trying rollback from an earlier position
[ 202.708045][ T5863] NILFS (loop0): recovery complete
[pid 5863] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5863] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 202.725564][ T5864] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 202.726184][ T27] audit: type=1800 audit(1676306890.478:399): pid=5863 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5863] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5863] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5863] exit_group(0) = ?
[pid 5863] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5863, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./397", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./397", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./397/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./397/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./397/binderfs") = 0
umount2("./397/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./397/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./397/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./397/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./397/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./397/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./397") = 0
mkdir("./398", 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=0x555555db65d0) = 5865
./strace-static-x86_64: Process 5865 attached
[pid 5865] chdir("./398") = 0
[pid 5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5865] setpgid(0, 0) = 0
[pid 5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5865] write(3, "1000", 4) = 4
[pid 5865] close(3) = 0
[pid 5865] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5865] memfd_create("syzkaller", 0) = 3
[pid 5865] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5865] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5865] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5865] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5865] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5865] close(3) = 0
[pid 5865] mkdir("./file0", 0777) = 0
[pid 5865] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5865] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 202.993218][ T5865] loop0: detected capacity change from 0 to 4096
[ 203.008389][ T5865] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 203.016504][ T5865] NILFS (loop0): trying rollback from an earlier position
[ 203.029805][ T5865] NILFS (loop0): recovery complete
[pid 5865] chdir("./file0") = 0
[pid 5865] ioctl(4, LOOP_CLR_FD) = 0
[pid 5865] close(4) = 0
[pid 5865] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5865] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 203.036696][ T5866] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 203.048210][ T27] audit: type=1800 audit(1676306890.808:400): pid=5865 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5865] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5865] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5865] exit_group(0) = ?
[pid 5865] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5865, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./398", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./398", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./398/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./398/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./398/binderfs") = 0
umount2("./398/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./398/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./398/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./398/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./398/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./398/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./398") = 0
mkdir("./399", 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 5867 attached
, child_tidptr=0x555555db65d0) = 5867
[pid 5867] chdir("./399") = 0
[pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5867] setpgid(0, 0) = 0
[pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5867] write(3, "1000", 4) = 4
[pid 5867] close(3) = 0
[pid 5867] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5867] memfd_create("syzkaller", 0) = 3
[pid 5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5867] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5867] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5867] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5867] close(3) = 0
[pid 5867] mkdir("./file0", 0777) = 0
[ 203.342362][ T5867] loop0: detected capacity change from 0 to 4096
[ 203.357977][ T5867] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 203.365985][ T5867] NILFS (loop0): trying rollback from an earlier position
[ 203.379875][ T5867] NILFS (loop0): recovery complete
[pid 5867] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5867] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5867] chdir("./file0") = 0
[pid 5867] ioctl(4, LOOP_CLR_FD) = 0
[pid 5867] close(4) = 0
[pid 5867] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5867] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 203.386091][ T5868] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 203.399267][ T27] audit: type=1800 audit(1676306891.158:401): pid=5867 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5867] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5867] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5867] exit_group(0) = ?
[pid 5867] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./399", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./399", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./399/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./399/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./399/binderfs") = 0
umount2("./399/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./399/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./399/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./399/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./399/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./399/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./399") = 0
mkdir("./400", 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=0x555555db65d0) = 5869
./strace-static-x86_64: Process 5869 attached
[pid 5869] chdir("./400") = 0
[pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5869] setpgid(0, 0) = 0
[pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5869] write(3, "1000", 4) = 4
[pid 5869] close(3) = 0
[pid 5869] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5869] memfd_create("syzkaller", 0) = 3
[pid 5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5869] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5869] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5869] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5869] close(3) = 0
[pid 5869] mkdir("./file0", 0777) = 0
[ 203.682621][ T5869] loop0: detected capacity change from 0 to 4096
[ 203.699453][ T5869] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 203.707534][ T5869] NILFS (loop0): trying rollback from an earlier position
[ 203.721283][ T5869] NILFS (loop0): recovery complete
[pid 5869] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5869] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5869] chdir("./file0") = 0
[pid 5869] ioctl(4, LOOP_CLR_FD) = 0
[pid 5869] close(4) = 0
[pid 5869] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5869] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 203.727153][ T5870] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 203.743353][ T27] audit: type=1800 audit(1676306891.508:402): pid=5869 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5869] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5869] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5869] exit_group(0) = ?
[pid 5869] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./400", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./400", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./400/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./400/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./400/binderfs") = 0
umount2("./400/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./400/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./400/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./400/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./400/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./400/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./400") = 0
mkdir("./401", 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=0x555555db65d0) = 5871
./strace-static-x86_64: Process 5871 attached
[pid 5871] chdir("./401") = 0
[pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5871] setpgid(0, 0) = 0
[pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5871] write(3, "1000", 4) = 4
[pid 5871] close(3) = 0
[pid 5871] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5871] memfd_create("syzkaller", 0) = 3
[pid 5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5871] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5871] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5871] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5871] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5871] close(3) = 0
[pid 5871] mkdir("./file0", 0777) = 0
[ 204.016617][ T5871] loop0: detected capacity change from 0 to 4096
[ 204.032253][ T5871] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 204.040390][ T5871] NILFS (loop0): trying rollback from an earlier position
[ 204.054030][ T5871] NILFS (loop0): recovery complete
[pid 5871] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5871] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5871] chdir("./file0") = 0
[pid 5871] ioctl(4, LOOP_CLR_FD) = 0
[pid 5871] close(4) = 0
[pid 5871] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5871] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 204.059897][ T5872] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 204.078525][ T27] audit: type=1800 audit(1676306891.838:403): pid=5871 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5871] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5871] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5871] exit_group(0) = ?
[pid 5871] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./401", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./401", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./401/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./401/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./401/binderfs") = 0
umount2("./401/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./401/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./401/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./401/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./401/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./401/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./401") = 0
mkdir("./402", 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=0x555555db65d0) = 5873
./strace-static-x86_64: Process 5873 attached
[pid 5873] chdir("./402") = 0
[pid 5873] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5873] setpgid(0, 0) = 0
[pid 5873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5873] write(3, "1000", 4) = 4
[pid 5873] close(3) = 0
[pid 5873] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5873] memfd_create("syzkaller", 0) = 3
[pid 5873] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5873] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5873] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5873] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5873] close(3) = 0
[pid 5873] mkdir("./file0", 0777) = 0
[ 204.338488][ T5873] loop0: detected capacity change from 0 to 4096
[ 204.353881][ T5873] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 204.361986][ T5873] NILFS (loop0): trying rollback from an earlier position
[ 204.376307][ T5873] NILFS (loop0): recovery complete
[pid 5873] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5873] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5873] chdir("./file0") = 0
[pid 5873] ioctl(4, LOOP_CLR_FD) = 0
[pid 5873] close(4) = 0
[pid 5873] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5873] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 204.382040][ T5874] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5873] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5873] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5873] exit_group(0) = ?
[pid 5873] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5873, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./402", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./402", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./402/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./402/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./402/binderfs") = 0
umount2("./402/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./402/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./402/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./402/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./402/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./402/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./402") = 0
mkdir("./403", 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=0x555555db65d0) = 5875
./strace-static-x86_64: Process 5875 attached
[pid 5875] chdir("./403") = 0
[pid 5875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5875] setpgid(0, 0) = 0
[pid 5875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5875] write(3, "1000", 4) = 4
[pid 5875] close(3) = 0
[pid 5875] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5875] memfd_create("syzkaller", 0) = 3
[pid 5875] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5875] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5875] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5875] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5875] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5875] close(3) = 0
[pid 5875] mkdir("./file0", 0777) = 0
[pid 5875] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5875] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5875] chdir("./file0") = 0
[pid 5875] ioctl(4, LOOP_CLR_FD) = 0
[ 204.664393][ T5875] loop0: detected capacity change from 0 to 4096
[ 204.680524][ T5875] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 204.688587][ T5875] NILFS (loop0): trying rollback from an earlier position
[ 204.702461][ T5875] NILFS (loop0): recovery complete
[pid 5875] close(4) = 0
[pid 5875] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5875] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 204.708259][ T5876] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5875] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5875] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5875] exit_group(0) = ?
[pid 5875] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5875, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./403", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./403", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./403/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./403/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./403/binderfs") = 0
umount2("./403/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./403/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./403/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./403/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./403/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./403/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./403") = 0
mkdir("./404", 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=0x555555db65d0) = 5877
./strace-static-x86_64: Process 5877 attached
[pid 5877] chdir("./404") = 0
[pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5877] setpgid(0, 0) = 0
[pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5877] write(3, "1000", 4) = 4
[pid 5877] close(3) = 0
[pid 5877] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5877] memfd_create("syzkaller", 0) = 3
[pid 5877] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5877] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5877] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5877] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5877] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5877] close(3) = 0
[pid 5877] mkdir("./file0", 0777) = 0
[ 204.978663][ T5877] loop0: detected capacity change from 0 to 4096
[ 204.993077][ T5877] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 205.001143][ T5877] NILFS (loop0): trying rollback from an earlier position
[ 205.014602][ T5877] NILFS (loop0): recovery complete
[pid 5877] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5877] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5877] chdir("./file0") = 0
[pid 5877] ioctl(4, LOOP_CLR_FD) = 0
[pid 5877] close(4) = 0
[pid 5877] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5877] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 205.020735][ T5878] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5877] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5877] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5877] exit_group(0) = ?
[pid 5877] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5877, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./404", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./404", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./404/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./404/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./404/binderfs") = 0
umount2("./404/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./404/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./404/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./404/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./404/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./404/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./404") = 0
mkdir("./405", 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=0x555555db65d0) = 5879
./strace-static-x86_64: Process 5879 attached
[pid 5879] chdir("./405") = 0
[pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5879] setpgid(0, 0) = 0
[pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5879] write(3, "1000", 4) = 4
[pid 5879] close(3) = 0
[pid 5879] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5879] memfd_create("syzkaller", 0) = 3
[pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5879] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5879] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5879] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5879] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5879] close(3) = 0
[pid 5879] mkdir("./file0", 0777) = 0
[ 205.299102][ T5879] loop0: detected capacity change from 0 to 4096
[ 205.317139][ T5879] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 205.325148][ T5879] NILFS (loop0): trying rollback from an earlier position
[ 205.339243][ T5879] NILFS (loop0): recovery complete
[pid 5879] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5879] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5879] chdir("./file0") = 0
[pid 5879] ioctl(4, LOOP_CLR_FD) = 0
[pid 5879] close(4) = 0
[pid 5879] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5879] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 205.345479][ T5880] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5879] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5879] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5879] exit_group(0) = ?
[pid 5879] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./405", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./405", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./405/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./405/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./405/binderfs") = 0
umount2("./405/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./405/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./405/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./405/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./405/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./405/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./405") = 0
mkdir("./406", 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=0x555555db65d0) = 5881
./strace-static-x86_64: Process 5881 attached
[pid 5881] chdir("./406") = 0
[pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5881] setpgid(0, 0) = 0
[pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5881] write(3, "1000", 4) = 4
[pid 5881] close(3) = 0
[pid 5881] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5881] memfd_create("syzkaller", 0) = 3
[pid 5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5881] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5881] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5881] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5881] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5881] close(3) = 0
[pid 5881] mkdir("./file0", 0777) = 0
[ 205.635795][ T5881] loop0: detected capacity change from 0 to 4096
[ 205.651462][ T5881] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 205.659503][ T5881] NILFS (loop0): trying rollback from an earlier position
[ 205.673238][ T5881] NILFS (loop0): recovery complete
[pid 5881] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5881] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5881] chdir("./file0") = 0
[pid 5881] ioctl(4, LOOP_CLR_FD) = 0
[pid 5881] close(4) = 0
[pid 5881] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5881] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 205.679388][ T5882] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5881] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5881] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5881] exit_group(0) = ?
[pid 5881] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./406", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./406", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./406/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./406/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./406/binderfs") = 0
umount2("./406/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./406/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./406/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./406/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./406/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./406/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./406") = 0
mkdir("./407", 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=0x555555db65d0) = 5883
./strace-static-x86_64: Process 5883 attached
[pid 5883] chdir("./407") = 0
[pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5883] setpgid(0, 0) = 0
[pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5883] write(3, "1000", 4) = 4
[pid 5883] close(3) = 0
[pid 5883] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5883] memfd_create("syzkaller", 0) = 3
[pid 5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5883] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5883] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5883] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5883] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5883] close(3) = 0
[pid 5883] mkdir("./file0", 0777) = 0
[ 205.969568][ T5883] loop0: detected capacity change from 0 to 4096
[ 205.985214][ T5883] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 205.993617][ T5883] NILFS (loop0): trying rollback from an earlier position
[ 206.008236][ T5883] NILFS (loop0): recovery complete
[pid 5883] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5883] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5883] chdir("./file0") = 0
[pid 5883] ioctl(4, LOOP_CLR_FD) = 0
[pid 5883] close(4) = 0
[pid 5883] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5883] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 206.014437][ T5884] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 206.027433][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 206.027442][ T27] audit: type=1800 audit(1676306893.788:409): pid=5883 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5883] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5883] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5883] exit_group(0) = ?
[pid 5883] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./407", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./407", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./407/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./407/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./407/binderfs") = 0
umount2("./407/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./407/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./407/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./407/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./407/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./407/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./407") = 0
mkdir("./408", 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=0x555555db65d0) = 5885
./strace-static-x86_64: Process 5885 attached
[pid 5885] chdir("./408") = 0
[pid 5885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5885] setpgid(0, 0) = 0
[pid 5885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5885] write(3, "1000", 4) = 4
[pid 5885] close(3) = 0
[pid 5885] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5885] memfd_create("syzkaller", 0) = 3
[pid 5885] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5885] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5885] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5885] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5885] close(3) = 0
[pid 5885] mkdir("./file0", 0777) = 0
[pid 5885] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5885] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5885] chdir("./file0") = 0
[pid 5885] ioctl(4, LOOP_CLR_FD) = 0
[ 206.300362][ T5885] loop0: detected capacity change from 0 to 4096
[ 206.314666][ T5885] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 206.322921][ T5885] NILFS (loop0): trying rollback from an earlier position
[ 206.336312][ T5885] NILFS (loop0): recovery complete
[pid 5885] close(4) = 0
[pid 5885] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5885] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 206.342593][ T5886] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 206.355602][ T27] audit: type=1800 audit(1676306894.118:410): pid=5885 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5885] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5885] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5885] exit_group(0) = ?
[pid 5885] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5885, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./408", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./408", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./408/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./408/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./408/binderfs") = 0
umount2("./408/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./408/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./408/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./408/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./408/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./408/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./408") = 0
mkdir("./409", 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=0x555555db65d0) = 5887
./strace-static-x86_64: Process 5887 attached
[pid 5887] chdir("./409") = 0
[pid 5887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5887] setpgid(0, 0) = 0
[pid 5887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5887] write(3, "1000", 4) = 4
[pid 5887] close(3) = 0
[pid 5887] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5887] memfd_create("syzkaller", 0) = 3
[pid 5887] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5887] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5887] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5887] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5887] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5887] close(3) = 0
[pid 5887] mkdir("./file0", 0777) = 0
[ 206.623625][ T5887] loop0: detected capacity change from 0 to 4096
[ 206.639624][ T5887] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 206.647770][ T5887] NILFS (loop0): trying rollback from an earlier position
[ 206.661611][ T5887] NILFS (loop0): recovery complete
[pid 5887] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5887] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5887] chdir("./file0") = 0
[pid 5887] ioctl(4, LOOP_CLR_FD) = 0
[pid 5887] close(4) = 0
[pid 5887] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5887] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 206.668014][ T5888] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 206.681168][ T27] audit: type=1800 audit(1676306894.448:411): pid=5887 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5887] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5887] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5887] exit_group(0) = ?
[pid 5887] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5887, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./409", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./409", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./409/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./409/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./409/binderfs") = 0
umount2("./409/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./409/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./409/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./409/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./409/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./409/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./409") = 0
mkdir("./410", 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=0x555555db65d0) = 5889
./strace-static-x86_64: Process 5889 attached
[pid 5889] chdir("./410") = 0
[pid 5889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5889] setpgid(0, 0) = 0
[pid 5889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5889] write(3, "1000", 4) = 4
[pid 5889] close(3) = 0
[pid 5889] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5889] memfd_create("syzkaller", 0) = 3
[pid 5889] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5889] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5889] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5889] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5889] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5889] close(3) = 0
[pid 5889] mkdir("./file0", 0777) = 0
[ 206.957810][ T5889] loop0: detected capacity change from 0 to 4096
[ 206.973920][ T5889] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 206.981959][ T5889] NILFS (loop0): trying rollback from an earlier position
[ 206.996045][ T5889] NILFS (loop0): recovery complete
[pid 5889] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5889] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5889] chdir("./file0") = 0
[pid 5889] ioctl(4, LOOP_CLR_FD) = 0
[pid 5889] close(4) = 0
[pid 5889] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5889] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 207.002339][ T5890] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 207.016190][ T27] audit: type=1800 audit(1676306894.768:412): pid=5889 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5889] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5889] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5889] exit_group(0) = ?
[pid 5889] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5889, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./410", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./410", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./410/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./410/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./410/binderfs") = 0
umount2("./410/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./410/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./410/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./410/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./410/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./410/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./410") = 0
mkdir("./411", 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=0x555555db65d0) = 5891
./strace-static-x86_64: Process 5891 attached
[pid 5891] chdir("./411") = 0
[pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5891] setpgid(0, 0) = 0
[pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5891] write(3, "1000", 4) = 4
[pid 5891] close(3) = 0
[pid 5891] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5891] memfd_create("syzkaller", 0) = 3
[pid 5891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5891] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5891] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5891] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5891] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5891] close(3) = 0
[pid 5891] mkdir("./file0", 0777) = 0
[pid 5891] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5891] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5891] chdir("./file0") = 0
[pid 5891] ioctl(4, LOOP_CLR_FD) = 0
[ 207.290510][ T5891] loop0: detected capacity change from 0 to 4096
[ 207.304808][ T5891] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 207.312926][ T5891] NILFS (loop0): trying rollback from an earlier position
[ 207.327348][ T5891] NILFS (loop0): recovery complete
[pid 5891] close(4) = 0
[pid 5891] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5891] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 207.333951][ T5892] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 207.347096][ T27] audit: type=1800 audit(1676306895.108:413): pid=5891 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5891] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5891] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5891] exit_group(0) = ?
[pid 5891] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./411", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./411", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./411/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./411/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./411/binderfs") = 0
umount2("./411/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./411/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./411/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./411/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./411/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./411/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./411") = 0
mkdir("./412", 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=0x555555db65d0) = 5893
./strace-static-x86_64: Process 5893 attached
[pid 5893] chdir("./412") = 0
[pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5893] setpgid(0, 0) = 0
[pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5893] write(3, "1000", 4) = 4
[pid 5893] close(3) = 0
[pid 5893] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5893] memfd_create("syzkaller", 0) = 3
[pid 5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5893] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5893] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5893] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5893] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5893] close(3) = 0
[pid 5893] mkdir("./file0", 0777) = 0
[ 207.635451][ T5893] loop0: detected capacity change from 0 to 4096
[ 207.651958][ T5893] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 207.660007][ T5893] NILFS (loop0): trying rollback from an earlier position
[ 207.673494][ T5893] NILFS (loop0): recovery complete
[pid 5893] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5893] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5893] chdir("./file0") = 0
[pid 5893] ioctl(4, LOOP_CLR_FD) = 0
[pid 5893] close(4) = 0
[pid 5893] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5893] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 207.679572][ T5894] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 207.692075][ T27] audit: type=1800 audit(1676306895.448:414): pid=5893 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5893] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5893] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5893] exit_group(0) = ?
[pid 5893] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./412", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./412", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./412/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./412/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./412/binderfs") = 0
umount2("./412/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./412/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./412/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./412/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./412/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./412/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./412") = 0
mkdir("./413", 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=0x555555db65d0) = 5895
./strace-static-x86_64: Process 5895 attached
[pid 5895] chdir("./413") = 0
[pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5895] setpgid(0, 0) = 0
[pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5895] write(3, "1000", 4) = 4
[pid 5895] close(3) = 0
[pid 5895] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5895] memfd_create("syzkaller", 0) = 3
[pid 5895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5895] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5895] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5895] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5895] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5895] close(3) = 0
[pid 5895] mkdir("./file0", 0777) = 0
[ 207.973291][ T5895] loop0: detected capacity change from 0 to 4096
[ 207.987944][ T5895] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 207.995944][ T5895] NILFS (loop0): trying rollback from an earlier position
[ 208.010342][ T5895] NILFS (loop0): recovery complete
[pid 5895] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5895] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5895] chdir("./file0") = 0
[pid 5895] ioctl(4, LOOP_CLR_FD) = 0
[pid 5895] close(4) = 0
[pid 5895] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5895] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 208.016559][ T5896] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 208.032404][ T27] audit: type=1800 audit(1676306895.788:415): pid=5895 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5895] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5895] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5895] exit_group(0) = ?
[pid 5895] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./413", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./413", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./413/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./413/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./413/binderfs") = 0
umount2("./413/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./413/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./413/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./413/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./413/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./413/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./413") = 0
mkdir("./414", 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=0x555555db65d0) = 5897
./strace-static-x86_64: Process 5897 attached
[pid 5897] chdir("./414") = 0
[pid 5897] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5897] setpgid(0, 0) = 0
[pid 5897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5897] write(3, "1000", 4) = 4
[pid 5897] close(3) = 0
[pid 5897] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5897] memfd_create("syzkaller", 0) = 3
[pid 5897] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5897] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5897] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5897] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5897] close(3) = 0
[pid 5897] mkdir("./file0", 0777) = 0
[pid 5897] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5897] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5897] chdir("./file0") = 0
[pid 5897] ioctl(4, LOOP_CLR_FD) = 0
[ 208.331175][ T5897] loop0: detected capacity change from 0 to 4096
[ 208.346538][ T5897] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 208.354560][ T5897] NILFS (loop0): trying rollback from an earlier position
[ 208.368779][ T5897] NILFS (loop0): recovery complete
[pid 5897] close(4) = 0
[pid 5897] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5897] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 208.375453][ T5898] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 208.388224][ T27] audit: type=1800 audit(1676306896.148:416): pid=5897 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5897] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5897] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5897] exit_group(0) = ?
[pid 5897] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5897, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./414", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./414", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./414/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./414/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./414/binderfs") = 0
umount2("./414/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./414/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./414/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./414/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./414/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./414/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./414") = 0
mkdir("./415", 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 5899 attached
, child_tidptr=0x555555db65d0) = 5899
[pid 5899] chdir("./415") = 0
[pid 5899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5899] setpgid(0, 0) = 0
[pid 5899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5899] write(3, "1000", 4) = 4
[pid 5899] close(3) = 0
[pid 5899] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5899] memfd_create("syzkaller", 0) = 3
[pid 5899] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5899] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5899] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5899] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5899] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5899] close(3) = 0
[pid 5899] mkdir("./file0", 0777) = 0
[ 208.671679][ T5899] loop0: detected capacity change from 0 to 4096
[ 208.687776][ T5899] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 208.695832][ T5899] NILFS (loop0): trying rollback from an earlier position
[ 208.709618][ T5899] NILFS (loop0): recovery complete
[pid 5899] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5899] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5899] chdir("./file0") = 0
[pid 5899] ioctl(4, LOOP_CLR_FD) = 0
[pid 5899] close(4) = 0
[pid 5899] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5899] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 208.715537][ T5900] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 208.736197][ T27] audit: type=1800 audit(1676306896.488:417): pid=5899 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5899] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5899] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5899] exit_group(0) = ?
[pid 5899] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5899, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./415", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./415", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./415/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./415/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./415/binderfs") = 0
umount2("./415/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./415/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./415/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./415/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./415/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./415/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./415") = 0
mkdir("./416", 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=0x555555db65d0) = 5901
./strace-static-x86_64: Process 5901 attached
[pid 5901] chdir("./416") = 0
[pid 5901] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5901] setpgid(0, 0) = 0
[pid 5901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5901] write(3, "1000", 4) = 4
[pid 5901] close(3) = 0
[pid 5901] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5901] memfd_create("syzkaller", 0) = 3
[pid 5901] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5901] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5901] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5901] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5901] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5901] close(3) = 0
[pid 5901] mkdir("./file0", 0777) = 0
[ 209.027218][ T5901] loop0: detected capacity change from 0 to 4096
[ 209.044821][ T5901] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 209.052946][ T5901] NILFS (loop0): trying rollback from an earlier position
[ 209.068522][ T5901] NILFS (loop0): recovery complete
[pid 5901] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5901] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5901] chdir("./file0") = 0
[pid 5901] ioctl(4, LOOP_CLR_FD) = 0
[pid 5901] close(4) = 0
[pid 5901] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5901] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 209.074376][ T5902] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 209.099349][ T27] audit: type=1800 audit(1676306896.858:418): pid=5901 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5901] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5901] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5901] exit_group(0) = ?
[pid 5901] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5901, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./416", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./416", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./416/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./416/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./416/binderfs") = 0
umount2("./416/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./416/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./416/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./416/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./416/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./416/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./416") = 0
mkdir("./417", 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=0x555555db65d0) = 5903
./strace-static-x86_64: Process 5903 attached
[pid 5903] chdir("./417") = 0
[pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5903] setpgid(0, 0) = 0
[pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5903] write(3, "1000", 4) = 4
[pid 5903] close(3) = 0
[pid 5903] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5903] memfd_create("syzkaller", 0) = 3
[pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5903] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5903] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5903] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5903] close(3) = 0
[pid 5903] mkdir("./file0", 0777) = 0
[ 209.371857][ T5903] loop0: detected capacity change from 0 to 4096
[ 209.388233][ T5903] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 209.396286][ T5903] NILFS (loop0): trying rollback from an earlier position
[ 209.409965][ T5903] NILFS (loop0): recovery complete
[pid 5903] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5903] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5903] chdir("./file0") = 0
[pid 5903] ioctl(4, LOOP_CLR_FD) = 0
[pid 5903] close(4) = 0
[pid 5903] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5903] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 209.415961][ T5904] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5903] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5903] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5903] exit_group(0) = ?
[pid 5903] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./417", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./417", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./417/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./417/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./417/binderfs") = 0
umount2("./417/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./417/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./417/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./417/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./417/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./417/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./417") = 0
mkdir("./418", 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=0x555555db65d0) = 5905
./strace-static-x86_64: Process 5905 attached
[pid 5905] chdir("./418") = 0
[pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5905] setpgid(0, 0) = 0
[pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5905] write(3, "1000", 4) = 4
[pid 5905] close(3) = 0
[pid 5905] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5905] memfd_create("syzkaller", 0) = 3
[pid 5905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5905] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5905] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5905] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5905] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5905] close(3) = 0
[pid 5905] mkdir("./file0", 0777) = 0
[ 209.701084][ T5905] loop0: detected capacity change from 0 to 4096
[ 209.715722][ T5905] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 209.723808][ T5905] NILFS (loop0): trying rollback from an earlier position
[ 209.737182][ T5905] NILFS (loop0): recovery complete
[pid 5905] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5905] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5905] chdir("./file0") = 0
[pid 5905] ioctl(4, LOOP_CLR_FD) = 0
[pid 5905] close(4) = 0
[pid 5905] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5905] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 209.742950][ T5906] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5905] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5905] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5905] exit_group(0) = ?
[pid 5905] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./418", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./418", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./418/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./418/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./418/binderfs") = 0
umount2("./418/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./418/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./418/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./418/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./418/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./418/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./418") = 0
mkdir("./419", 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=0x555555db65d0) = 5907
./strace-static-x86_64: Process 5907 attached
[pid 5907] chdir("./419") = 0
[pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5907] setpgid(0, 0) = 0
[pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5907] write(3, "1000", 4) = 4
[pid 5907] close(3) = 0
[pid 5907] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5907] memfd_create("syzkaller", 0) = 3
[pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5907] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5907] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5907] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5907] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5907] close(3) = 0
[pid 5907] mkdir("./file0", 0777) = 0
[ 210.014447][ T5907] loop0: detected capacity change from 0 to 4096
[ 210.029757][ T5907] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 210.037780][ T5907] NILFS (loop0): trying rollback from an earlier position
[ 210.051312][ T5907] NILFS (loop0): recovery complete
[pid 5907] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5907] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5907] chdir("./file0") = 0
[pid 5907] ioctl(4, LOOP_CLR_FD) = 0
[pid 5907] close(4) = 0
[pid 5907] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5907] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 210.057287][ T5908] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5907] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5907] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5907] exit_group(0) = ?
[pid 5907] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./419", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./419", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./419/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./419/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./419/binderfs") = 0
umount2("./419/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./419/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./419/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./419/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./419/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./419/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./419") = 0
mkdir("./420", 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=0x555555db65d0) = 5909
./strace-static-x86_64: Process 5909 attached
[pid 5909] chdir("./420") = 0
[pid 5909] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5909] setpgid(0, 0) = 0
[pid 5909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5909] write(3, "1000", 4) = 4
[pid 5909] close(3) = 0
[pid 5909] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5909] memfd_create("syzkaller", 0) = 3
[pid 5909] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5909] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5909] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5909] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5909] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5909] close(3) = 0
[pid 5909] mkdir("./file0", 0777) = 0
[ 210.337927][ T5909] loop0: detected capacity change from 0 to 4096
[ 210.353306][ T5909] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 210.361343][ T5909] NILFS (loop0): trying rollback from an earlier position
[ 210.375117][ T5909] NILFS (loop0): recovery complete
[pid 5909] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5909] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5909] chdir("./file0") = 0
[pid 5909] ioctl(4, LOOP_CLR_FD) = 0
[pid 5909] close(4) = 0
[pid 5909] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5909] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 210.381368][ T5910] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5909] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5909] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5909] exit_group(0) = ?
[pid 5909] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5909, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./420", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./420", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./420/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./420/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./420/binderfs") = 0
umount2("./420/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./420/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./420/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./420/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./420/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./420/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./420") = 0
mkdir("./421", 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=0x555555db65d0) = 5911
./strace-static-x86_64: Process 5911 attached
[pid 5911] chdir("./421") = 0
[pid 5911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5911] setpgid(0, 0) = 0
[pid 5911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5911] write(3, "1000", 4) = 4
[pid 5911] close(3) = 0
[pid 5911] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5911] memfd_create("syzkaller", 0) = 3
[pid 5911] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5911] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5911] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5911] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5911] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5911] close(3) = 0
[pid 5911] mkdir("./file0", 0777) = 0
[ 210.670773][ T5911] loop0: detected capacity change from 0 to 4096
[ 210.689262][ T5911] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 210.697592][ T5911] NILFS (loop0): trying rollback from an earlier position
[ 210.711742][ T5911] NILFS (loop0): recovery complete
[pid 5911] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5911] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5911] chdir("./file0") = 0
[pid 5911] ioctl(4, LOOP_CLR_FD) = 0
[pid 5911] close(4) = 0
[pid 5911] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5911] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 210.717628][ T5912] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5911] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5911] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5911] exit_group(0) = ?
[pid 5911] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5911, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./421", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./421", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./421/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./421/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./421/binderfs") = 0
umount2("./421/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./421/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./421/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./421/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./421/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./421/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./421") = 0
mkdir("./422", 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=0x555555db65d0) = 5913
./strace-static-x86_64: Process 5913 attached
[pid 5913] chdir("./422") = 0
[pid 5913] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5913] setpgid(0, 0) = 0
[pid 5913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5913] write(3, "1000", 4) = 4
[pid 5913] close(3) = 0
[pid 5913] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5913] memfd_create("syzkaller", 0) = 3
[pid 5913] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5913] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5913] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5913] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5913] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5913] close(3) = 0
[pid 5913] mkdir("./file0", 0777) = 0
[ 211.019261][ T5913] loop0: detected capacity change from 0 to 4096
[ 211.034264][ T5913] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 211.042335][ T5913] NILFS (loop0): trying rollback from an earlier position
[ 211.056507][ T5913] NILFS (loop0): recovery complete
[pid 5913] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5913] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5913] chdir("./file0") = 0
[pid 5913] ioctl(4, LOOP_CLR_FD) = 0
[pid 5913] close(4) = 0
[pid 5913] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5913] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 211.062664][ T5914] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 211.075709][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 211.075721][ T27] audit: type=1800 audit(1676306898.828:424): pid=5913 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5913] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5913] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5913] exit_group(0) = ?
[pid 5913] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5913, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./422", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./422", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./422/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./422/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./422/binderfs") = 0
umount2("./422/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./422/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./422/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./422/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./422/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./422/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./422") = 0
mkdir("./423", 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=0x555555db65d0) = 5915
./strace-static-x86_64: Process 5915 attached
[pid 5915] chdir("./423") = 0
[pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5915] setpgid(0, 0) = 0
[pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5915] write(3, "1000", 4) = 4
[pid 5915] close(3) = 0
[pid 5915] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5915] memfd_create("syzkaller", 0) = 3
[pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5915] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5915] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5915] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5915] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5915] close(3) = 0
[pid 5915] mkdir("./file0", 0777) = 0
[ 211.370976][ T5915] loop0: detected capacity change from 0 to 4096
[ 211.387937][ T5915] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 211.395996][ T5915] NILFS (loop0): trying rollback from an earlier position
[ 211.410333][ T5915] NILFS (loop0): recovery complete
[pid 5915] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5915] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5915] chdir("./file0") = 0
[pid 5915] ioctl(4, LOOP_CLR_FD) = 0
[pid 5915] close(4) = 0
[pid 5915] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5915] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 211.416451][ T5916] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 211.436234][ T27] audit: type=1800 audit(1676306899.178:425): pid=5915 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5915] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5915] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5915] exit_group(0) = ?
[pid 5915] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./423", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./423", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./423/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./423/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./423/binderfs") = 0
umount2("./423/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./423/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./423/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./423/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./423/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./423/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./423") = 0
mkdir("./424", 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=0x555555db65d0) = 5917
./strace-static-x86_64: Process 5917 attached
[pid 5917] chdir("./424") = 0
[pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5917] setpgid(0, 0) = 0
[pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5917] write(3, "1000", 4) = 4
[pid 5917] close(3) = 0
[pid 5917] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5917] memfd_create("syzkaller", 0) = 3
[pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5917] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5917] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5917] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5917] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5917] close(3) = 0
[pid 5917] mkdir("./file0", 0777) = 0
[ 211.709706][ T5917] loop0: detected capacity change from 0 to 4096
[ 211.725734][ T5917] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 211.733884][ T5917] NILFS (loop0): trying rollback from an earlier position
[ 211.750987][ T5917] NILFS (loop0): recovery complete
[pid 5917] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5917] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5917] chdir("./file0") = 0
[pid 5917] ioctl(4, LOOP_CLR_FD) = 0
[pid 5917] close(4) = 0
[pid 5917] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5917] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 211.757189][ T5918] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 211.762651][ T27] audit: type=1800 audit(1676306899.518:426): pid=5917 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5917] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5917] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5917] exit_group(0) = ?
[pid 5917] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./424", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./424", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./424/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./424/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./424/binderfs") = 0
umount2("./424/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./424/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./424/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./424/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./424/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./424/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./424") = 0
mkdir("./425", 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=0x555555db65d0) = 5919
./strace-static-x86_64: Process 5919 attached
[pid 5919] chdir("./425") = 0
[pid 5919] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5919] setpgid(0, 0) = 0
[pid 5919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5919] write(3, "1000", 4) = 4
[pid 5919] close(3) = 0
[pid 5919] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5919] memfd_create("syzkaller", 0) = 3
[pid 5919] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5919] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5919] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5919] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5919] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5919] close(3) = 0
[pid 5919] mkdir("./file0", 0777) = 0
[ 212.054057][ T5919] loop0: detected capacity change from 0 to 4096
[ 212.070730][ T5919] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 212.078782][ T5919] NILFS (loop0): trying rollback from an earlier position
[ 212.092551][ T5919] NILFS (loop0): recovery complete
[pid 5919] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5919] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5919] chdir("./file0") = 0
[pid 5919] ioctl(4, LOOP_CLR_FD) = 0
[pid 5919] close(4) = 0
[pid 5919] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5919] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 212.098623][ T5920] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 212.113067][ T27] audit: type=1800 audit(1676306899.878:427): pid=5919 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5919] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5919] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5919] exit_group(0) = ?
[pid 5919] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5919, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./425", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./425", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./425/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./425/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./425/binderfs") = 0
umount2("./425/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./425/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./425/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./425/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./425/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./425/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./425") = 0
mkdir("./426", 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=0x555555db65d0) = 5921
./strace-static-x86_64: Process 5921 attached
[pid 5921] chdir("./426") = 0
[pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5921] setpgid(0, 0) = 0
[pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5921] write(3, "1000", 4) = 4
[pid 5921] close(3) = 0
[pid 5921] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5921] memfd_create("syzkaller", 0) = 3
[pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5921] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5921] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5921] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5921] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5921] close(3) = 0
[pid 5921] mkdir("./file0", 0777) = 0
[ 212.399787][ T5921] loop0: detected capacity change from 0 to 4096
[ 212.416198][ T5921] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 212.424271][ T5921] NILFS (loop0): trying rollback from an earlier position
[ 212.437627][ T5921] NILFS (loop0): recovery complete
[pid 5921] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5921] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5921] chdir("./file0") = 0
[pid 5921] ioctl(4, LOOP_CLR_FD) = 0
[pid 5921] close(4) = 0
[pid 5921] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5921] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 212.443502][ T5922] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 212.456819][ T27] audit: type=1800 audit(1676306900.218:428): pid=5921 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5921] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5921] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5921] exit_group(0) = ?
[pid 5921] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5921, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./426", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./426", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./426/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./426/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./426/binderfs") = 0
umount2("./426/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./426/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./426/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./426/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./426/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./426/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./426") = 0
mkdir("./427", 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=0x555555db65d0) = 5923
./strace-static-x86_64: Process 5923 attached
[pid 5923] chdir("./427") = 0
[pid 5923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5923] setpgid(0, 0) = 0
[pid 5923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5923] write(3, "1000", 4) = 4
[pid 5923] close(3) = 0
[pid 5923] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5923] memfd_create("syzkaller", 0) = 3
[pid 5923] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5923] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5923] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5923] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5923] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5923] close(3) = 0
[pid 5923] mkdir("./file0", 0777) = 0
[ 212.719715][ T5923] loop0: detected capacity change from 0 to 4096
[ 212.735839][ T5923] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 212.743860][ T5923] NILFS (loop0): trying rollback from an earlier position
[ 212.756968][ T5923] NILFS (loop0): recovery complete
[pid 5923] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5923] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5923] chdir("./file0") = 0
[pid 5923] ioctl(4, LOOP_CLR_FD) = 0
[pid 5923] close(4) = 0
[pid 5923] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5923] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 212.762746][ T5924] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 212.776093][ T27] audit: type=1800 audit(1676306900.538:429): pid=5923 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5923] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5923] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5923] exit_group(0) = ?
[pid 5923] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5923, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./427", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./427", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./427/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./427/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./427/binderfs") = 0
umount2("./427/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./427/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./427/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./427/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./427/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./427/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./427") = 0
mkdir("./428", 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=0x555555db65d0) = 5925
./strace-static-x86_64: Process 5925 attached
[pid 5925] chdir("./428") = 0
[pid 5925] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5925] setpgid(0, 0) = 0
[pid 5925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5925] write(3, "1000", 4) = 4
[pid 5925] close(3) = 0
[pid 5925] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5925] memfd_create("syzkaller", 0) = 3
[pid 5925] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5925] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5925] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5925] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5925] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5925] close(3) = 0
[pid 5925] mkdir("./file0", 0777) = 0
[pid 5925] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5925] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5925] chdir("./file0") = 0
[pid 5925] ioctl(4, LOOP_CLR_FD) = 0
[ 213.062859][ T5925] loop0: detected capacity change from 0 to 4096
[ 213.079544][ T5925] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 213.087701][ T5925] NILFS (loop0): trying rollback from an earlier position
[ 213.101043][ T5925] NILFS (loop0): recovery complete
[pid 5925] close(4) = 0
[pid 5925] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5925] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 213.106912][ T5926] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 213.125423][ T27] audit: type=1800 audit(1676306900.888:430): pid=5925 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5925] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5925] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5925] exit_group(0) = ?
[pid 5925] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5925, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./428", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./428", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./428/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./428/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./428/binderfs") = 0
umount2("./428/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./428/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./428/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./428/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./428/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./428/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./428") = 0
mkdir("./429", 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=0x555555db65d0) = 5927
./strace-static-x86_64: Process 5927 attached
[pid 5927] chdir("./429") = 0
[pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5927] setpgid(0, 0) = 0
[pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5927] write(3, "1000", 4) = 4
[pid 5927] close(3) = 0
[pid 5927] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5927] memfd_create("syzkaller", 0) = 3
[pid 5927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5927] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5927] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5927] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5927] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5927] close(3) = 0
[pid 5927] mkdir("./file0", 0777) = 0
[pid 5927] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5927] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5927] chdir("./file0") = 0
[pid 5927] ioctl(4, LOOP_CLR_FD) = 0
[pid 5927] close(4) = 0
[ 213.384579][ T5927] loop0: detected capacity change from 0 to 4096
[ 213.400897][ T5927] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 213.408967][ T5927] NILFS (loop0): trying rollback from an earlier position
[ 213.422882][ T5927] NILFS (loop0): recovery complete
[pid 5927] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5927] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 213.429216][ T5928] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 213.446176][ T27] audit: type=1800 audit(1676306901.198:431): pid=5927 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5927] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5927] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5927] exit_group(0) = ?
[pid 5927] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5927, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./429", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./429", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./429/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./429/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./429/binderfs") = 0
umount2("./429/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./429/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./429/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./429/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./429/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./429/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./429") = 0
mkdir("./430", 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=0x555555db65d0) = 5929
./strace-static-x86_64: Process 5929 attached
[pid 5929] chdir("./430") = 0
[pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5929] setpgid(0, 0) = 0
[pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5929] write(3, "1000", 4) = 4
[pid 5929] close(3) = 0
[pid 5929] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5929] memfd_create("syzkaller", 0) = 3
[pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5929] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5929] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5929] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5929] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5929] close(3) = 0
[pid 5929] mkdir("./file0", 0777) = 0
[pid 5929] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5929] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5929] chdir("./file0") = 0
[pid 5929] ioctl(4, LOOP_CLR_FD) = 0
[ 213.715822][ T5929] loop0: detected capacity change from 0 to 4096
[ 213.731984][ T5929] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 213.740182][ T5929] NILFS (loop0): trying rollback from an earlier position
[ 213.753949][ T5929] NILFS (loop0): recovery complete
[pid 5929] close(4) = 0
[pid 5929] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5929] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 213.760253][ T5930] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 213.774608][ T27] audit: type=1800 audit(1676306901.538:432): pid=5929 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5929] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5929] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5929] exit_group(0) = ?
[pid 5929] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./430", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./430", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./430/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./430/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./430/binderfs") = 0
umount2("./430/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./430/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./430/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./430/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./430/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./430/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./430") = 0
mkdir("./431", 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=0x555555db65d0) = 5931
./strace-static-x86_64: Process 5931 attached
[pid 5931] chdir("./431") = 0
[pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5931] setpgid(0, 0) = 0
[pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5931] write(3, "1000", 4) = 4
[pid 5931] close(3) = 0
[pid 5931] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5931] memfd_create("syzkaller", 0) = 3
[pid 5931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5931] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5931] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5931] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5931] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5931] close(3) = 0
[pid 5931] mkdir("./file0", 0777) = 0
[ 214.039560][ T5931] loop0: detected capacity change from 0 to 4096
[ 214.057212][ T5931] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 214.065265][ T5931] NILFS (loop0): trying rollback from an earlier position
[ 214.079470][ T5931] NILFS (loop0): recovery complete
[pid 5931] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5931] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5931] chdir("./file0") = 0
[pid 5931] ioctl(4, LOOP_CLR_FD) = 0
[pid 5931] close(4) = 0
[pid 5931] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5931] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 214.085331][ T5932] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 214.101231][ T27] audit: type=1800 audit(1676306901.858:433): pid=5931 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5931] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5931] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5931] exit_group(0) = ?
[pid 5931] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5931, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./431", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./431", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./431/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./431/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./431/binderfs") = 0
umount2("./431/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./431/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./431/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./431/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./431/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./431/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./431") = 0
mkdir("./432", 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=0x555555db65d0) = 5933
./strace-static-x86_64: Process 5933 attached
[pid 5933] chdir("./432") = 0
[pid 5933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5933] setpgid(0, 0) = 0
[pid 5933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5933] write(3, "1000", 4) = 4
[pid 5933] close(3) = 0
[pid 5933] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5933] memfd_create("syzkaller", 0) = 3
[pid 5933] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5933] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5933] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5933] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5933] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5933] close(3) = 0
[pid 5933] mkdir("./file0", 0777) = 0
[ 214.381940][ T5933] loop0: detected capacity change from 0 to 4096
[ 214.399127][ T5933] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 214.407254][ T5933] NILFS (loop0): trying rollback from an earlier position
[ 214.422728][ T5933] NILFS (loop0): recovery complete
[pid 5933] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5933] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5933] chdir("./file0") = 0
[pid 5933] ioctl(4, LOOP_CLR_FD) = 0
[pid 5933] close(4) = 0
[pid 5933] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5933] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 214.429044][ T5934] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5933] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5933] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5933] exit_group(0) = ?
[pid 5933] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5933, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./432", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./432", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./432/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./432/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./432/binderfs") = 0
umount2("./432/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./432/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./432/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./432/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./432/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./432/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./432") = 0
mkdir("./433", 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=0x555555db65d0) = 5935
./strace-static-x86_64: Process 5935 attached
[pid 5935] chdir("./433") = 0
[pid 5935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5935] setpgid(0, 0) = 0
[pid 5935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5935] write(3, "1000", 4) = 4
[pid 5935] close(3) = 0
[pid 5935] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5935] memfd_create("syzkaller", 0) = 3
[pid 5935] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5935] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5935] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5935] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5935] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5935] close(3) = 0
[pid 5935] mkdir("./file0", 0777) = 0
[pid 5935] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5935] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5935] chdir("./file0") = 0
[pid 5935] ioctl(4, LOOP_CLR_FD) = 0
[pid 5935] close(4) = 0
[ 214.719592][ T5935] loop0: detected capacity change from 0 to 4096
[ 214.735210][ T5935] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 214.743366][ T5935] NILFS (loop0): trying rollback from an earlier position
[ 214.758101][ T5935] NILFS (loop0): recovery complete
[pid 5935] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5935] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 214.764207][ T5936] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5935] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5935] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5935] exit_group(0) = ?
[pid 5935] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5935, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./433", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./433", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./433/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./433/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./433/binderfs") = 0
umount2("./433/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./433/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./433/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./433/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./433/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./433/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./433") = 0
mkdir("./434", 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=0x555555db65d0) = 5937
./strace-static-x86_64: Process 5937 attached
[pid 5937] chdir("./434") = 0
[pid 5937] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5937] setpgid(0, 0) = 0
[pid 5937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5937] write(3, "1000", 4) = 4
[pid 5937] close(3) = 0
[pid 5937] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5937] memfd_create("syzkaller", 0) = 3
[pid 5937] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5937] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5937] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5937] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5937] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5937] close(3) = 0
[pid 5937] mkdir("./file0", 0777) = 0
[ 215.043288][ T5937] loop0: detected capacity change from 0 to 4096
[ 215.059404][ T5937] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 215.067577][ T5937] NILFS (loop0): trying rollback from an earlier position
[ 215.081114][ T5937] NILFS (loop0): recovery complete
[pid 5937] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5937] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5937] chdir("./file0") = 0
[pid 5937] ioctl(4, LOOP_CLR_FD) = 0
[pid 5937] close(4) = 0
[pid 5937] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5937] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 215.087135][ T5938] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5937] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5937] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5937] exit_group(0) = ?
[pid 5937] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5937, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./434", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./434", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./434/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./434/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./434/binderfs") = 0
umount2("./434/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./434/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./434/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./434/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./434/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./434/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./434") = 0
mkdir("./435", 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=0x555555db65d0) = 5939
./strace-static-x86_64: Process 5939 attached
[pid 5939] chdir("./435") = 0
[pid 5939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5939] setpgid(0, 0) = 0
[pid 5939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5939] write(3, "1000", 4) = 4
[pid 5939] close(3) = 0
[pid 5939] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5939] memfd_create("syzkaller", 0) = 3
[pid 5939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5939] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5939] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5939] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5939] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5939] close(3) = 0
[pid 5939] mkdir("./file0", 0777) = 0
[ 215.352021][ T5939] loop0: detected capacity change from 0 to 4096
[ 215.367923][ T5939] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 215.375974][ T5939] NILFS (loop0): trying rollback from an earlier position
[ 215.389678][ T5939] NILFS (loop0): recovery complete
[pid 5939] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5939] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5939] chdir("./file0") = 0
[pid 5939] ioctl(4, LOOP_CLR_FD) = 0
[pid 5939] close(4) = 0
[pid 5939] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5939] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 215.395834][ T5940] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5939] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5939] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5939] exit_group(0) = ?
[pid 5939] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5939, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./435", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./435", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./435/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./435/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./435/binderfs") = 0
umount2("./435/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./435/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./435/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./435/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./435/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./435/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./435") = 0
mkdir("./436", 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=0x555555db65d0) = 5941
./strace-static-x86_64: Process 5941 attached
[pid 5941] chdir("./436") = 0
[pid 5941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5941] setpgid(0, 0) = 0
[pid 5941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5941] write(3, "1000", 4) = 4
[pid 5941] close(3) = 0
[pid 5941] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5941] memfd_create("syzkaller", 0) = 3
[pid 5941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5941] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5941] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5941] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5941] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5941] close(3) = 0
[pid 5941] mkdir("./file0", 0777) = 0
[ 215.680963][ T5941] loop0: detected capacity change from 0 to 4096
[ 215.696192][ T5941] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 215.704212][ T5941] NILFS (loop0): trying rollback from an earlier position
[ 215.718091][ T5941] NILFS (loop0): recovery complete
[pid 5941] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5941] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5941] chdir("./file0") = 0
[pid 5941] ioctl(4, LOOP_CLR_FD) = 0
[pid 5941] close(4) = 0
[pid 5941] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5941] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 215.724038][ T5942] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5941] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5941] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5941] exit_group(0) = ?
[pid 5941] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5941, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./436", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./436", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./436/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./436/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./436/binderfs") = 0
umount2("./436/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./436/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./436/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./436/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./436/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./436/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./436") = 0
mkdir("./437", 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=0x555555db65d0) = 5943
./strace-static-x86_64: Process 5943 attached
[pid 5943] chdir("./437") = 0
[pid 5943] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5943] setpgid(0, 0) = 0
[pid 5943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5943] write(3, "1000", 4) = 4
[pid 5943] close(3) = 0
[pid 5943] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5943] memfd_create("syzkaller", 0) = 3
[pid 5943] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5943] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5943] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5943] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5943] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5943] close(3) = 0
[pid 5943] mkdir("./file0", 0777) = 0
[pid 5943] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 216.012417][ T5943] loop0: detected capacity change from 0 to 4096
[ 216.030929][ T5943] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 216.039253][ T5943] NILFS (loop0): trying rollback from an earlier position
[ 216.053146][ T5943] NILFS (loop0): recovery complete
[pid 5943] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5943] chdir("./file0") = 0
[pid 5943] ioctl(4, LOOP_CLR_FD) = 0
[pid 5943] close(4) = 0
[pid 5943] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5943] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 216.059907][ T5944] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5943] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5943] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5943] exit_group(0) = ?
[pid 5943] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5943, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./437", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./437", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./437/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./437/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./437/binderfs") = 0
umount2("./437/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./437/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./437/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./437/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./437/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./437/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./437") = 0
mkdir("./438", 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=0x555555db65d0) = 5945
./strace-static-x86_64: Process 5945 attached
[pid 5945] chdir("./438") = 0
[pid 5945] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5945] setpgid(0, 0) = 0
[pid 5945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5945] write(3, "1000", 4) = 4
[pid 5945] close(3) = 0
[pid 5945] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5945] memfd_create("syzkaller", 0) = 3
[pid 5945] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5945] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5945] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5945] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5945] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5945] close(3) = 0
[pid 5945] mkdir("./file0", 0777) = 0
[ 216.342782][ T5945] loop0: detected capacity change from 0 to 4096
[ 216.359415][ T5945] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 216.367795][ T5945] NILFS (loop0): trying rollback from an earlier position
[ 216.381222][ T5945] NILFS (loop0): recovery complete
[pid 5945] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5945] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5945] chdir("./file0") = 0
[pid 5945] ioctl(4, LOOP_CLR_FD) = 0
[pid 5945] close(4) = 0
[pid 5945] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5945] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 216.387513][ T5946] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 216.397663][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 216.397674][ T27] audit: type=1800 audit(1676306904.148:440): pid=5945 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5945] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5945] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5945] exit_group(0) = ?
[pid 5945] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5945, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./438", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./438", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./438/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./438/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./438/binderfs") = 0
umount2("./438/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./438/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./438/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./438/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./438/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./438/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./438") = 0
mkdir("./439", 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=0x555555db65d0) = 5947
./strace-static-x86_64: Process 5947 attached
[pid 5947] chdir("./439") = 0
[pid 5947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5947] setpgid(0, 0) = 0
[pid 5947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5947] write(3, "1000", 4) = 4
[pid 5947] close(3) = 0
[pid 5947] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5947] memfd_create("syzkaller", 0) = 3
[pid 5947] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5947] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5947] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5947] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5947] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5947] close(3) = 0
[pid 5947] mkdir("./file0", 0777) = 0
[pid 5947] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5947] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5947] chdir("./file0") = 0
[pid 5947] ioctl(4, LOOP_CLR_FD) = 0
[ 216.668911][ T5947] loop0: detected capacity change from 0 to 4096
[ 216.684525][ T5947] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 216.692561][ T5947] NILFS (loop0): trying rollback from an earlier position
[ 216.706385][ T5947] NILFS (loop0): recovery complete
[pid 5947] close(4) = 0
[pid 5947] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5947] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 216.712119][ T5948] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 216.725673][ T27] audit: type=1800 audit(1676306904.488:441): pid=5947 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5947] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5947] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5947] exit_group(0) = ?
[pid 5947] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5947, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./439", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./439", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./439/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./439/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./439/binderfs") = 0
umount2("./439/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./439/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./439/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./439/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./439/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./439/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./439") = 0
mkdir("./440", 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=0x555555db65d0) = 5949
./strace-static-x86_64: Process 5949 attached
[pid 5949] chdir("./440") = 0
[pid 5949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5949] setpgid(0, 0) = 0
[pid 5949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5949] write(3, "1000", 4) = 4
[pid 5949] close(3) = 0
[pid 5949] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5949] memfd_create("syzkaller", 0) = 3
[pid 5949] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5949] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5949] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5949] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5949] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5949] close(3) = 0
[pid 5949] mkdir("./file0", 0777) = 0
[pid 5949] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5949] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5949] chdir("./file0") = 0
[pid 5949] ioctl(4, LOOP_CLR_FD) = 0
[ 217.004309][ T5949] loop0: detected capacity change from 0 to 4096
[ 217.020947][ T5949] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 217.029031][ T5949] NILFS (loop0): trying rollback from an earlier position
[ 217.042525][ T5949] NILFS (loop0): recovery complete
[pid 5949] close(4) = 0
[pid 5949] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5949] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 217.048331][ T5950] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 217.069537][ T27] audit: type=1800 audit(1676306904.828:442): pid=5949 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5949] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5949] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5949] exit_group(0) = ?
[pid 5949] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5949, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./440", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./440", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./440/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./440/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./440/binderfs") = 0
umount2("./440/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./440/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./440/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./440/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./440/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./440/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./440") = 0
mkdir("./441", 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=0x555555db65d0) = 5951
./strace-static-x86_64: Process 5951 attached
[pid 5951] chdir("./441") = 0
[pid 5951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5951] setpgid(0, 0) = 0
[pid 5951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5951] write(3, "1000", 4) = 4
[pid 5951] close(3) = 0
[pid 5951] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5951] memfd_create("syzkaller", 0) = 3
[pid 5951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5951] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5951] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5951] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5951] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5951] close(3) = 0
[pid 5951] mkdir("./file0", 0777) = 0
[pid 5951] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5951] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 217.335451][ T5951] loop0: detected capacity change from 0 to 4096
[ 217.350050][ T5951] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 217.358131][ T5951] NILFS (loop0): trying rollback from an earlier position
[ 217.373398][ T5951] NILFS (loop0): recovery complete
[pid 5951] chdir("./file0") = 0
[pid 5951] ioctl(4, LOOP_CLR_FD) = 0
[pid 5951] close(4) = 0
[pid 5951] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5951] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 217.379420][ T5952] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 217.398255][ T27] audit: type=1800 audit(1676306905.158:443): pid=5951 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5951] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5951] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5951] exit_group(0) = ?
[pid 5951] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5951, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./441", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./441", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./441/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./441/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./441/binderfs") = 0
umount2("./441/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./441/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./441/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./441/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./441/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./441/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./441") = 0
mkdir("./442", 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=0x555555db65d0) = 5953
./strace-static-x86_64: Process 5953 attached
[pid 5953] chdir("./442") = 0
[pid 5953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5953] setpgid(0, 0) = 0
[pid 5953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5953] write(3, "1000", 4) = 4
[pid 5953] close(3) = 0
[pid 5953] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5953] memfd_create("syzkaller", 0) = 3
[pid 5953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5953] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5953] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5953] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5953] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5953] close(3) = 0
[pid 5953] mkdir("./file0", 0777) = 0
[ 217.679467][ T5953] loop0: detected capacity change from 0 to 4096
[ 217.697121][ T5953] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 217.705217][ T5953] NILFS (loop0): trying rollback from an earlier position
[ 217.718833][ T5953] NILFS (loop0): recovery complete
[pid 5953] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5953] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5953] chdir("./file0") = 0
[pid 5953] ioctl(4, LOOP_CLR_FD) = 0
[pid 5953] close(4) = 0
[pid 5953] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5953] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 217.725099][ T5954] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 217.729886][ T27] audit: type=1800 audit(1676306905.478:444): pid=5953 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5953] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5953] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5953] exit_group(0) = ?
[pid 5953] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5953, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./442", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./442", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./442/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./442/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./442/binderfs") = 0
umount2("./442/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./442/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./442/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./442/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./442/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./442/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./442") = 0
mkdir("./443", 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=0x555555db65d0) = 5955
./strace-static-x86_64: Process 5955 attached
[pid 5955] chdir("./443") = 0
[pid 5955] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5955] setpgid(0, 0) = 0
[pid 5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5955] write(3, "1000", 4) = 4
[pid 5955] close(3) = 0
[pid 5955] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5955] memfd_create("syzkaller", 0) = 3
[pid 5955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5955] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5955] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5955] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5955] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5955] close(3) = 0
[pid 5955] mkdir("./file0", 0777) = 0
[ 218.024059][ T5955] loop0: detected capacity change from 0 to 4096
[ 218.040264][ T5955] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 218.048302][ T5955] NILFS (loop0): trying rollback from an earlier position
[ 218.061697][ T5955] NILFS (loop0): recovery complete
[pid 5955] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5955] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5955] chdir("./file0") = 0
[pid 5955] ioctl(4, LOOP_CLR_FD) = 0
[pid 5955] close(4) = 0
[pid 5955] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5955] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 218.067872][ T5956] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 218.077759][ T27] audit: type=1800 audit(1676306905.838:445): pid=5955 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5955] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5955] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5955] exit_group(0) = ?
[pid 5955] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5955, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./443", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./443", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./443/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./443/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./443/binderfs") = 0
umount2("./443/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./443/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./443/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./443/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./443/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./443/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./443") = 0
mkdir("./444", 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=0x555555db65d0) = 5957
./strace-static-x86_64: Process 5957 attached
[pid 5957] chdir("./444") = 0
[pid 5957] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5957] setpgid(0, 0) = 0
[pid 5957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5957] write(3, "1000", 4) = 4
[pid 5957] close(3) = 0
[pid 5957] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5957] memfd_create("syzkaller", 0) = 3
[pid 5957] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5957] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5957] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5957] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5957] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5957] close(3) = 0
[pid 5957] mkdir("./file0", 0777) = 0
[ 218.352651][ T5957] loop0: detected capacity change from 0 to 4096
[ 218.367859][ T5957] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 218.375869][ T5957] NILFS (loop0): trying rollback from an earlier position
[ 218.389718][ T5957] NILFS (loop0): recovery complete
[pid 5957] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5957] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5957] chdir("./file0") = 0
[pid 5957] ioctl(4, LOOP_CLR_FD) = 0
[pid 5957] close(4) = 0
[pid 5957] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5957] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 218.395446][ T5958] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 218.412249][ T27] audit: type=1800 audit(1676306906.168:446): pid=5957 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5957] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5957] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5957] exit_group(0) = ?
[pid 5957] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5957, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./444", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./444", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./444/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./444/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./444/binderfs") = 0
umount2("./444/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./444/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./444/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./444/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./444/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./444/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./444") = 0
mkdir("./445", 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=0x555555db65d0) = 5959
./strace-static-x86_64: Process 5959 attached
[pid 5959] chdir("./445") = 0
[pid 5959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5959] setpgid(0, 0) = 0
[pid 5959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5959] write(3, "1000", 4) = 4
[pid 5959] close(3) = 0
[pid 5959] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5959] memfd_create("syzkaller", 0) = 3
[pid 5959] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5959] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5959] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5959] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5959] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5959] close(3) = 0
[pid 5959] mkdir("./file0", 0777) = 0
[pid 5959] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5959] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5959] chdir("./file0") = 0
[pid 5959] ioctl(4, LOOP_CLR_FD) = 0
[ 218.668332][ T5959] loop0: detected capacity change from 0 to 4096
[ 218.684119][ T5959] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 218.692224][ T5959] NILFS (loop0): trying rollback from an earlier position
[ 218.705666][ T5959] NILFS (loop0): recovery complete
[pid 5959] close(4) = 0
[pid 5959] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5959] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 218.711544][ T5960] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 218.726877][ T27] audit: type=1800 audit(1676306906.488:447): pid=5959 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5959] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5959] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5959] exit_group(0) = ?
[pid 5959] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5959, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./445", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./445", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./445/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./445/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./445/binderfs") = 0
umount2("./445/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./445/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./445/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./445/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./445/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./445/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./445") = 0
mkdir("./446", 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=0x555555db65d0) = 5961
./strace-static-x86_64: Process 5961 attached
[pid 5961] chdir("./446") = 0
[pid 5961] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5961] setpgid(0, 0) = 0
[pid 5961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5961] write(3, "1000", 4) = 4
[pid 5961] close(3) = 0
[pid 5961] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5961] memfd_create("syzkaller", 0) = 3
[pid 5961] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5961] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5961] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5961] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5961] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5961] close(3) = 0
[pid 5961] mkdir("./file0", 0777) = 0
[ 218.989091][ T5961] loop0: detected capacity change from 0 to 4096
[ 219.006003][ T5961] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 219.014141][ T5961] NILFS (loop0): trying rollback from an earlier position
[ 219.027928][ T5961] NILFS (loop0): recovery complete
[pid 5961] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5961] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5961] chdir("./file0") = 0
[pid 5961] ioctl(4, LOOP_CLR_FD) = 0
[pid 5961] close(4) = 0
[pid 5961] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5961] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 219.034179][ T5962] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 219.037679][ T27] audit: type=1800 audit(1676306906.798:448): pid=5961 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5961] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5961] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5961] exit_group(0) = ?
[pid 5961] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5961, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./446", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./446", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./446/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./446/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./446/binderfs") = 0
umount2("./446/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./446/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./446/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./446/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./446/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./446/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./446") = 0
mkdir("./447", 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=0x555555db65d0) = 5963
./strace-static-x86_64: Process 5963 attached
[pid 5963] chdir("./447") = 0
[pid 5963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5963] setpgid(0, 0) = 0
[pid 5963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5963] write(3, "1000", 4) = 4
[pid 5963] close(3) = 0
[pid 5963] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5963] memfd_create("syzkaller", 0) = 3
[pid 5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5963] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5963] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5963] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5963] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5963] close(3) = 0
[pid 5963] mkdir("./file0", 0777) = 0
[pid 5963] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5963] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5963] chdir("./file0") = 0
[pid 5963] ioctl(4, LOOP_CLR_FD) = 0
[ 219.333036][ T5963] loop0: detected capacity change from 0 to 4096
[ 219.349609][ T5963] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 219.357695][ T5963] NILFS (loop0): trying rollback from an earlier position
[ 219.372194][ T5963] NILFS (loop0): recovery complete
[pid 5963] close(4) = 0
[pid 5963] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5963] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 219.378133][ T5964] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 219.392302][ T27] audit: type=1800 audit(1676306907.148:449): pid=5963 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5963] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5963] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5963] exit_group(0) = ?
[pid 5963] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5963, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./447", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./447", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./447/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./447/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./447/binderfs") = 0
umount2("./447/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./447/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./447/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./447/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./447/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./447/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./447") = 0
mkdir("./448", 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=0x555555db65d0) = 5965
./strace-static-x86_64: Process 5965 attached
[pid 5965] chdir("./448") = 0
[pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5965] setpgid(0, 0) = 0
[pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5965] write(3, "1000", 4) = 4
[pid 5965] close(3) = 0
[pid 5965] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5965] memfd_create("syzkaller", 0) = 3
[pid 5965] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5965] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5965] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5965] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5965] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5965] close(3) = 0
[pid 5965] mkdir("./file0", 0777) = 0
[ 219.656872][ T5965] loop0: detected capacity change from 0 to 4096
[ 219.673084][ T5965] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 219.681195][ T5965] NILFS (loop0): trying rollback from an earlier position
[ 219.693903][ T5965] NILFS (loop0): recovery complete
[pid 5965] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5965] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5965] chdir("./file0") = 0
[pid 5965] ioctl(4, LOOP_CLR_FD) = 0
[pid 5965] close(4) = 0
[pid 5965] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5965] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 219.700144][ T5966] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5965] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5965] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5965] exit_group(0) = ?
[pid 5965] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5965, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./448", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./448", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./448/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./448/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./448/binderfs") = 0
umount2("./448/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./448/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./448/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./448/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./448/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./448/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./448") = 0
mkdir("./449", 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=0x555555db65d0) = 5967
./strace-static-x86_64: Process 5967 attached
[pid 5967] chdir("./449") = 0
[pid 5967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5967] setpgid(0, 0) = 0
[pid 5967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5967] write(3, "1000", 4) = 4
[pid 5967] close(3) = 0
[pid 5967] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5967] memfd_create("syzkaller", 0) = 3
[pid 5967] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5967] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5967] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5967] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5967] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5967] close(3) = 0
[pid 5967] mkdir("./file0", 0777) = 0
[ 219.983376][ T5967] loop0: detected capacity change from 0 to 4096
[ 219.999906][ T5967] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 220.007993][ T5967] NILFS (loop0): trying rollback from an earlier position
[ 220.021368][ T5967] NILFS (loop0): recovery complete
[pid 5967] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5967] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5967] chdir("./file0") = 0
[pid 5967] ioctl(4, LOOP_CLR_FD) = 0
[pid 5967] close(4) = 0
[pid 5967] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5967] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 220.027887][ T5968] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5967] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5967] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5967] exit_group(0) = ?
[pid 5967] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5967, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./449", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./449", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./449/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./449/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./449/binderfs") = 0
umount2("./449/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./449/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./449/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./449/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./449/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./449/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./449") = 0
mkdir("./450", 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=0x555555db65d0) = 5969
./strace-static-x86_64: Process 5969 attached
[pid 5969] chdir("./450") = 0
[pid 5969] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5969] setpgid(0, 0) = 0
[pid 5969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5969] write(3, "1000", 4) = 4
[pid 5969] close(3) = 0
[pid 5969] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5969] memfd_create("syzkaller", 0) = 3
[pid 5969] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5969] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5969] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5969] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5969] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5969] close(3) = 0
[pid 5969] mkdir("./file0", 0777) = 0
[pid 5969] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 220.316098][ T5969] loop0: detected capacity change from 0 to 4096
[ 220.334224][ T5969] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 220.342546][ T5969] NILFS (loop0): trying rollback from an earlier position
[ 220.356469][ T5969] NILFS (loop0): recovery complete
[pid 5969] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5969] chdir("./file0") = 0
[pid 5969] ioctl(4, LOOP_CLR_FD) = 0
[pid 5969] close(4) = 0
[pid 5969] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5969] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 220.362743][ T5970] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5969] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5969] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5969] exit_group(0) = ?
[pid 5969] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5969, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./450", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./450", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./450/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./450/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./450/binderfs") = 0
umount2("./450/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./450/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./450/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./450/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./450/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./450/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./450") = 0
mkdir("./451", 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=0x555555db65d0) = 5971
./strace-static-x86_64: Process 5971 attached
[pid 5971] chdir("./451") = 0
[pid 5971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5971] setpgid(0, 0) = 0
[pid 5971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5971] write(3, "1000", 4) = 4
[pid 5971] close(3) = 0
[pid 5971] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5971] memfd_create("syzkaller", 0) = 3
[pid 5971] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5971] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5971] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5971] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5971] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5971] close(3) = 0
[pid 5971] mkdir("./file0", 0777) = 0
[pid 5971] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5971] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5971] chdir("./file0") = 0
[pid 5971] ioctl(4, LOOP_CLR_FD) = 0
[ 220.649969][ T5971] loop0: detected capacity change from 0 to 4096
[ 220.665487][ T5971] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 220.673577][ T5971] NILFS (loop0): trying rollback from an earlier position
[ 220.687197][ T5971] NILFS (loop0): recovery complete
[pid 5971] close(4) = 0
[pid 5971] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5971] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 220.693170][ T5972] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5971] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5971] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5971] exit_group(0) = ?
[pid 5971] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5971, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./451", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./451", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./451/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./451/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./451/binderfs") = 0
umount2("./451/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./451/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./451/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./451/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./451/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./451/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./451") = 0
mkdir("./452", 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=0x555555db65d0) = 5973
./strace-static-x86_64: Process 5973 attached
[pid 5973] chdir("./452") = 0
[pid 5973] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5973] setpgid(0, 0) = 0
[pid 5973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5973] write(3, "1000", 4) = 4
[pid 5973] close(3) = 0
[pid 5973] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5973] memfd_create("syzkaller", 0) = 3
[pid 5973] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5973] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5973] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5973] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5973] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5973] close(3) = 0
[pid 5973] mkdir("./file0", 0777) = 0
[ 220.985847][ T5973] loop0: detected capacity change from 0 to 4096
[ 221.004374][ T5973] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 221.012948][ T5973] NILFS (loop0): trying rollback from an earlier position
[ 221.027091][ T5973] NILFS (loop0): recovery complete
[pid 5973] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5973] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5973] chdir("./file0") = 0
[pid 5973] ioctl(4, LOOP_CLR_FD) = 0
[pid 5973] close(4) = 0
[pid 5973] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5973] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 221.033196][ T5974] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5973] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5973] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5973] exit_group(0) = ?
[pid 5973] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5973, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./452", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./452", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./452/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./452/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./452/binderfs") = 0
umount2("./452/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./452/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./452/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./452/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./452/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./452/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./452") = 0
mkdir("./453", 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=0x555555db65d0) = 5975
./strace-static-x86_64: Process 5975 attached
[pid 5975] chdir("./453") = 0
[pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5975] setpgid(0, 0) = 0
[pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5975] write(3, "1000", 4) = 4
[pid 5975] close(3) = 0
[pid 5975] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5975] memfd_create("syzkaller", 0) = 3
[pid 5975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5975] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5975] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5975] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5975] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5975] close(3) = 0
[pid 5975] mkdir("./file0", 0777) = 0
[ 221.310461][ T5975] loop0: detected capacity change from 0 to 4096
[ 221.326001][ T5975] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 221.334090][ T5975] NILFS (loop0): trying rollback from an earlier position
[ 221.347923][ T5975] NILFS (loop0): recovery complete
[pid 5975] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5975] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5975] chdir("./file0") = 0
[pid 5975] ioctl(4, LOOP_CLR_FD) = 0
[pid 5975] close(4) = 0
[pid 5975] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5975] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 221.354325][ T5976] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5975] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5975] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5975] exit_group(0) = ?
[pid 5975] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5975, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./453", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./453", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./453/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./453/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./453/binderfs") = 0
umount2("./453/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./453/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./453/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./453/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./453/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./453/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./453") = 0
mkdir("./454", 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 5977 attached
, child_tidptr=0x555555db65d0) = 5977
[pid 5977] chdir("./454") = 0
[pid 5977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5977] setpgid(0, 0) = 0
[pid 5977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5977] write(3, "1000", 4) = 4
[pid 5977] close(3) = 0
[pid 5977] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5977] memfd_create("syzkaller", 0) = 3
[pid 5977] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5977] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5977] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5977] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5977] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5977] close(3) = 0
[pid 5977] mkdir("./file0", 0777) = 0
[ 221.642420][ T5977] loop0: detected capacity change from 0 to 4096
[ 221.657239][ T5977] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 221.665260][ T5977] NILFS (loop0): trying rollback from an earlier position
[ 221.679954][ T5977] NILFS (loop0): recovery complete
[pid 5977] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5977] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5977] chdir("./file0") = 0
[pid 5977] ioctl(4, LOOP_CLR_FD) = 0
[pid 5977] close(4) = 0
[pid 5977] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5977] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 221.686518][ T5978] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 221.698274][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 221.698286][ T27] audit: type=1800 audit(1676306909.458:456): pid=5977 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5977] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5977] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5977] exit_group(0) = ?
[pid 5977] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5977, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./454", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./454", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./454/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./454/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./454/binderfs") = 0
umount2("./454/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./454/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./454/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./454/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./454/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./454/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./454") = 0
mkdir("./455", 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=0x555555db65d0) = 5979
./strace-static-x86_64: Process 5979 attached
[pid 5979] chdir("./455") = 0
[pid 5979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5979] setpgid(0, 0) = 0
[pid 5979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5979] write(3, "1000", 4) = 4
[pid 5979] close(3) = 0
[pid 5979] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5979] memfd_create("syzkaller", 0) = 3
[pid 5979] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5979] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5979] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5979] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5979] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5979] close(3) = 0
[pid 5979] mkdir("./file0", 0777) = 0
[pid 5979] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5979] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5979] chdir("./file0") = 0
[pid 5979] ioctl(4, LOOP_CLR_FD) = 0
[ 221.986687][ T5979] loop0: detected capacity change from 0 to 4096
[ 222.004521][ T5979] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 222.012853][ T5979] NILFS (loop0): trying rollback from an earlier position
[ 222.026463][ T5979] NILFS (loop0): recovery complete
[pid 5979] close(4) = 0
[pid 5979] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5979] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 222.032161][ T5980] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 222.040310][ T27] audit: type=1800 audit(1676306909.788:457): pid=5979 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5979] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5979] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5979] exit_group(0) = ?
[pid 5979] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5979, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./455", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./455", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./455/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./455/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./455/binderfs") = 0
umount2("./455/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./455/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./455/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./455/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./455/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./455/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./455") = 0
mkdir("./456", 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=0x555555db65d0) = 5981
./strace-static-x86_64: Process 5981 attached
[pid 5981] chdir("./456") = 0
[pid 5981] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5981] setpgid(0, 0) = 0
[pid 5981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5981] write(3, "1000", 4) = 4
[pid 5981] close(3) = 0
[pid 5981] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5981] memfd_create("syzkaller", 0) = 3
[pid 5981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5981] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5981] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5981] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5981] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5981] close(3) = 0
[pid 5981] mkdir("./file0", 0777) = 0
[pid 5981] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5981] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5981] chdir("./file0") = 0
[ 222.348807][ T5981] loop0: detected capacity change from 0 to 4096
[ 222.364423][ T5981] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 222.372969][ T5981] NILFS (loop0): trying rollback from an earlier position
[ 222.387628][ T5981] NILFS (loop0): recovery complete
[pid 5981] ioctl(4, LOOP_CLR_FD) = 0
[pid 5981] close(4) = 0
[pid 5981] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5981] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 222.393996][ T5982] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 222.407370][ T27] audit: type=1800 audit(1676306910.168:458): pid=5981 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5981] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5981] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5981] exit_group(0) = ?
[pid 5981] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5981, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./456", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./456", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./456/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./456/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./456/binderfs") = 0
umount2("./456/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./456/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./456/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./456/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./456/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./456/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./456") = 0
mkdir("./457", 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=0x555555db65d0) = 5983
./strace-static-x86_64: Process 5983 attached
[pid 5983] chdir("./457") = 0
[pid 5983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5983] setpgid(0, 0) = 0
[pid 5983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5983] write(3, "1000", 4) = 4
[pid 5983] close(3) = 0
[pid 5983] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5983] memfd_create("syzkaller", 0) = 3
[pid 5983] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5983] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5983] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5983] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5983] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5983] close(3) = 0
[pid 5983] mkdir("./file0", 0777) = 0
[ 222.679944][ T5983] loop0: detected capacity change from 0 to 4096
[ 222.695698][ T5983] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 222.703836][ T5983] NILFS (loop0): trying rollback from an earlier position
[ 222.717526][ T5983] NILFS (loop0): recovery complete
[pid 5983] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5983] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5983] chdir("./file0") = 0
[pid 5983] ioctl(4, LOOP_CLR_FD) = 0
[pid 5983] close(4) = 0
[pid 5983] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5983] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 222.723987][ T5984] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 222.736586][ T27] audit: type=1800 audit(1676306910.498:459): pid=5983 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5983] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5983] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5983] exit_group(0) = ?
[pid 5983] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5983, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./457", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./457", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./457/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./457/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./457/binderfs") = 0
umount2("./457/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./457/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./457/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./457/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./457/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./457/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./457") = 0
mkdir("./458", 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=0x555555db65d0) = 5985
./strace-static-x86_64: Process 5985 attached
[pid 5985] chdir("./458") = 0
[pid 5985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5985] setpgid(0, 0) = 0
[pid 5985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5985] write(3, "1000", 4) = 4
[pid 5985] close(3) = 0
[pid 5985] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5985] memfd_create("syzkaller", 0) = 3
[pid 5985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5985] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5985] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5985] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5985] close(3) = 0
[pid 5985] mkdir("./file0", 0777) = 0
[pid 5985] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5985] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5985] chdir("./file0") = 0
[ 223.005637][ T5985] loop0: detected capacity change from 0 to 4096
[ 223.022139][ T5985] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 223.030236][ T5985] NILFS (loop0): trying rollback from an earlier position
[ 223.044111][ T5985] NILFS (loop0): recovery complete
[pid 5985] ioctl(4, LOOP_CLR_FD) = 0
[pid 5985] close(4) = 0
[pid 5985] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5985] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 223.051161][ T5986] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 223.063394][ T27] audit: type=1800 audit(1676306910.828:460): pid=5985 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5985] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5985] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5985] exit_group(0) = ?
[pid 5985] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5985, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./458", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./458", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./458/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./458/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./458/binderfs") = 0
umount2("./458/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./458/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./458/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./458/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./458/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./458/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./458") = 0
mkdir("./459", 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=0x555555db65d0) = 5987
./strace-static-x86_64: Process 5987 attached
[pid 5987] chdir("./459") = 0
[pid 5987] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5987] setpgid(0, 0) = 0
[pid 5987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5987] write(3, "1000", 4) = 4
[pid 5987] close(3) = 0
[pid 5987] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5987] memfd_create("syzkaller", 0) = 3
[pid 5987] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5987] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5987] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5987] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5987] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5987] close(3) = 0
[pid 5987] mkdir("./file0", 0777) = 0
[pid 5987] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5987] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5987] chdir("./file0") = 0
[pid 5987] ioctl(4, LOOP_CLR_FD) = 0
[pid 5987] close(4) = 0
[ 223.336693][ T5987] loop0: detected capacity change from 0 to 4096
[ 223.352720][ T5987] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 223.360786][ T5987] NILFS (loop0): trying rollback from an earlier position
[ 223.374664][ T5987] NILFS (loop0): recovery complete
[pid 5987] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5987] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 223.380692][ T5988] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 223.387355][ T27] audit: type=1800 audit(1676306911.148:461): pid=5987 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5987] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5987] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5987] exit_group(0) = ?
[pid 5987] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5987, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./459", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./459", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./459/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./459/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./459/binderfs") = 0
umount2("./459/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./459/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./459/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./459/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./459/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./459/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./459") = 0
mkdir("./460", 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=0x555555db65d0) = 5989
./strace-static-x86_64: Process 5989 attached
[pid 5989] chdir("./460") = 0
[pid 5989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5989] setpgid(0, 0) = 0
[pid 5989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5989] write(3, "1000", 4) = 4
[pid 5989] close(3) = 0
[pid 5989] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5989] memfd_create("syzkaller", 0) = 3
[pid 5989] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5989] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5989] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5989] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5989] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5989] close(3) = 0
[pid 5989] mkdir("./file0", 0777) = 0
[pid 5989] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5989] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5989] chdir("./file0") = 0
[pid 5989] ioctl(4, LOOP_CLR_FD) = 0
[pid 5989] close(4) = 0
[ 223.683410][ T5989] loop0: detected capacity change from 0 to 4096
[ 223.700103][ T5989] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 223.708161][ T5989] NILFS (loop0): trying rollback from an earlier position
[ 223.721673][ T5989] NILFS (loop0): recovery complete
[pid 5989] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5989] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 223.727569][ T5990] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 223.746148][ T27] audit: type=1800 audit(1676306911.488:462): pid=5989 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5989] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5989] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5989] exit_group(0) = ?
[pid 5989] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5989, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./460", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./460", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./460/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./460/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./460/binderfs") = 0
umount2("./460/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./460/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./460/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./460/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./460/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./460/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./460") = 0
mkdir("./461", 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=0x555555db65d0) = 5991
./strace-static-x86_64: Process 5991 attached
[pid 5991] chdir("./461") = 0
[pid 5991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5991] setpgid(0, 0) = 0
[pid 5991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5991] write(3, "1000", 4) = 4
[pid 5991] close(3) = 0
[pid 5991] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5991] memfd_create("syzkaller", 0) = 3
[pid 5991] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5991] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5991] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5991] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5991] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5991] close(3) = 0
[pid 5991] mkdir("./file0", 0777) = 0
[pid 5991] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5991] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 224.019813][ T5991] loop0: detected capacity change from 0 to 4096
[ 224.035994][ T5991] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 224.044234][ T5991] NILFS (loop0): trying rollback from an earlier position
[ 224.058390][ T5991] NILFS (loop0): recovery complete
[pid 5991] chdir("./file0") = 0
[pid 5991] ioctl(4, LOOP_CLR_FD) = 0
[pid 5991] close(4) = 0
[pid 5991] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5991] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 224.064610][ T5992] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 224.077658][ T27] audit: type=1800 audit(1676306911.838:463): pid=5991 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5991] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5991] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5991] exit_group(0) = ?
[pid 5991] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5991, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./461", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./461", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./461/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./461/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./461/binderfs") = 0
umount2("./461/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./461/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./461/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./461/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./461/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./461/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./461") = 0
mkdir("./462", 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=0x555555db65d0) = 5993
./strace-static-x86_64: Process 5993 attached
[pid 5993] chdir("./462") = 0
[pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5993] setpgid(0, 0) = 0
[pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5993] write(3, "1000", 4) = 4
[pid 5993] close(3) = 0
[pid 5993] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5993] memfd_create("syzkaller", 0) = 3
[pid 5993] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5993] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5993] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5993] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5993] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5993] close(3) = 0
[pid 5993] mkdir("./file0", 0777) = 0
[ 224.365439][ T5993] loop0: detected capacity change from 0 to 4096
[ 224.380852][ T5993] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 224.389179][ T5993] NILFS (loop0): trying rollback from an earlier position
[ 224.403236][ T5993] NILFS (loop0): recovery complete
[pid 5993] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5993] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5993] chdir("./file0") = 0
[pid 5993] ioctl(4, LOOP_CLR_FD) = 0
[pid 5993] close(4) = 0
[pid 5993] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5993] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 224.409418][ T5994] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 224.423852][ T27] audit: type=1800 audit(1676306912.178:464): pid=5993 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5993] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5993] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5993] exit_group(0) = ?
[pid 5993] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5993, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./462", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./462", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./462/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./462/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./462/binderfs") = 0
umount2("./462/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./462/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./462/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./462/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./462/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./462/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./462") = 0
mkdir("./463", 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=0x555555db65d0) = 5995
./strace-static-x86_64: Process 5995 attached
[pid 5995] chdir("./463") = 0
[pid 5995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5995] setpgid(0, 0) = 0
[pid 5995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5995] write(3, "1000", 4) = 4
[pid 5995] close(3) = 0
[pid 5995] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5995] memfd_create("syzkaller", 0) = 3
[pid 5995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5995] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5995] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5995] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5995] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5995] close(3) = 0
[pid 5995] mkdir("./file0", 0777) = 0
[ 224.691520][ T5995] loop0: detected capacity change from 0 to 4096
[ 224.708695][ T5995] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 224.716735][ T5995] NILFS (loop0): trying rollback from an earlier position
[ 224.730686][ T5995] NILFS (loop0): recovery complete
[pid 5995] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5995] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5995] chdir("./file0") = 0
[pid 5995] ioctl(4, LOOP_CLR_FD) = 0
[pid 5995] close(4) = 0
[pid 5995] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5995] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 224.737047][ T5996] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 224.756153][ T27] audit: type=1800 audit(1676306912.498:465): pid=5995 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 5995] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5995] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5995] exit_group(0) = ?
[pid 5995] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5995, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./463", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./463", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./463/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./463/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./463/binderfs") = 0
umount2("./463/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./463/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./463/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./463/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./463/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./463/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./463") = 0
mkdir("./464", 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=0x555555db65d0) = 5997
./strace-static-x86_64: Process 5997 attached
[pid 5997] chdir("./464") = 0
[pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5997] setpgid(0, 0) = 0
[pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5997] write(3, "1000", 4) = 4
[pid 5997] close(3) = 0
[pid 5997] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5997] memfd_create("syzkaller", 0) = 3
[pid 5997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5997] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5997] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5997] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5997] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5997] close(3) = 0
[pid 5997] mkdir("./file0", 0777) = 0
[pid 5997] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 225.020552][ T5997] loop0: detected capacity change from 0 to 4096
[ 225.037538][ T5997] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 225.045613][ T5997] NILFS (loop0): trying rollback from an earlier position
[ 225.060728][ T5997] NILFS (loop0): recovery complete
[pid 5997] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5997] chdir("./file0") = 0
[pid 5997] ioctl(4, LOOP_CLR_FD) = 0
[pid 5997] close(4) = 0
[pid 5997] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5997] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 225.066800][ T5998] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5997] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5997] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5997] exit_group(0) = ?
[pid 5997] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5997, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./464", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./464", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./464/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./464/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./464/binderfs") = 0
umount2("./464/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./464/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./464/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./464/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./464/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./464/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./464") = 0
mkdir("./465", 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=0x555555db65d0) = 5999
./strace-static-x86_64: Process 5999 attached
[pid 5999] chdir("./465") = 0
[pid 5999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5999] setpgid(0, 0) = 0
[pid 5999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5999] write(3, "1000", 4) = 4
[pid 5999] close(3) = 0
[pid 5999] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5999] memfd_create("syzkaller", 0) = 3
[pid 5999] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 5999] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 5999] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 5999] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5999] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5999] close(3) = 0
[pid 5999] mkdir("./file0", 0777) = 0
[ 225.341791][ T5999] loop0: detected capacity change from 0 to 4096
[ 225.357685][ T5999] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 225.365691][ T5999] NILFS (loop0): trying rollback from an earlier position
[ 225.379592][ T5999] NILFS (loop0): recovery complete
[pid 5999] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 5999] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5999] chdir("./file0") = 0
[pid 5999] ioctl(4, LOOP_CLR_FD) = 0
[pid 5999] close(4) = 0
[pid 5999] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5999] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 225.385462][ T6000] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 5999] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 5999] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 5999] exit_group(0) = ?
[pid 5999] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5999, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./465", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./465", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./465/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./465/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./465/binderfs") = 0
umount2("./465/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./465/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./465/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./465/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./465/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./465/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./465") = 0
mkdir("./466", 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=0x555555db65d0) = 6001
./strace-static-x86_64: Process 6001 attached
[pid 6001] chdir("./466") = 0
[pid 6001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6001] setpgid(0, 0) = 0
[pid 6001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6001] write(3, "1000", 4) = 4
[pid 6001] close(3) = 0
[pid 6001] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6001] memfd_create("syzkaller", 0) = 3
[pid 6001] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6001] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6001] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6001] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6001] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6001] close(3) = 0
[pid 6001] mkdir("./file0", 0777) = 0
[ 225.660398][ T6001] loop0: detected capacity change from 0 to 4096
[ 225.675841][ T6001] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 225.683942][ T6001] NILFS (loop0): trying rollback from an earlier position
[ 225.696668][ T6001] NILFS (loop0): recovery complete
[pid 6001] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6001] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6001] chdir("./file0") = 0
[pid 6001] ioctl(4, LOOP_CLR_FD) = 0
[pid 6001] close(4) = 0
[pid 6001] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6001] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 225.702409][ T6002] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6001] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6001] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6001] exit_group(0) = ?
[pid 6001] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6001, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./466", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./466", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./466/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./466/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./466/binderfs") = 0
umount2("./466/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./466/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./466/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./466/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./466/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./466/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./466") = 0
mkdir("./467", 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=0x555555db65d0) = 6003
./strace-static-x86_64: Process 6003 attached
[pid 6003] chdir("./467") = 0
[pid 6003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6003] setpgid(0, 0) = 0
[pid 6003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6003] write(3, "1000", 4) = 4
[pid 6003] close(3) = 0
[pid 6003] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6003] memfd_create("syzkaller", 0) = 3
[pid 6003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6003] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6003] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6003] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6003] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6003] close(3) = 0
[pid 6003] mkdir("./file0", 0777) = 0
[ 225.985507][ T6003] loop0: detected capacity change from 0 to 4096
[ 226.000612][ T6003] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 226.008647][ T6003] NILFS (loop0): trying rollback from an earlier position
[ 226.021559][ T6003] NILFS (loop0): recovery complete
[pid 6003] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6003] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6003] chdir("./file0") = 0
[pid 6003] ioctl(4, LOOP_CLR_FD) = 0
[pid 6003] close(4) = 0
[pid 6003] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6003] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 226.027335][ T6004] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6003] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6003] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6003] exit_group(0) = ?
[pid 6003] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6003, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./467", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./467", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./467/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./467/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./467/binderfs") = 0
umount2("./467/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./467/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./467/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./467/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./467/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./467/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./467") = 0
mkdir("./468", 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=0x555555db65d0) = 6005
./strace-static-x86_64: Process 6005 attached
[pid 6005] chdir("./468") = 0
[pid 6005] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6005] setpgid(0, 0) = 0
[pid 6005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6005] write(3, "1000", 4) = 4
[pid 6005] close(3) = 0
[pid 6005] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6005] memfd_create("syzkaller", 0) = 3
[pid 6005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6005] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6005] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6005] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6005] close(3) = 0
[pid 6005] mkdir("./file0", 0777) = 0
[pid 6005] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6005] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6005] chdir("./file0") = 0
[ 226.301099][ T6005] loop0: detected capacity change from 0 to 4096
[ 226.317456][ T6005] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 226.325469][ T6005] NILFS (loop0): trying rollback from an earlier position
[ 226.339887][ T6005] NILFS (loop0): recovery complete
[pid 6005] ioctl(4, LOOP_CLR_FD) = 0
[pid 6005] close(4) = 0
[pid 6005] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6005] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 226.346007][ T6006] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6005] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6005] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6005] exit_group(0) = ?
[pid 6005] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6005, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./468", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./468", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./468/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./468/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./468/binderfs") = 0
umount2("./468/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./468/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./468/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./468/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./468/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./468/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./468") = 0
mkdir("./469", 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=0x555555db65d0) = 6007
./strace-static-x86_64: Process 6007 attached
[pid 6007] chdir("./469") = 0
[pid 6007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6007] setpgid(0, 0) = 0
[pid 6007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6007] write(3, "1000", 4) = 4
[pid 6007] close(3) = 0
[pid 6007] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6007] memfd_create("syzkaller", 0) = 3
[pid 6007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6007] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6007] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6007] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6007] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6007] close(3) = 0
[pid 6007] mkdir("./file0", 0777) = 0
[pid 6007] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6007] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6007] chdir("./file0") = 0
[pid 6007] ioctl(4, LOOP_CLR_FD) = 0
[ 226.625914][ T6007] loop0: detected capacity change from 0 to 4096
[ 226.641884][ T6007] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 226.649996][ T6007] NILFS (loop0): trying rollback from an earlier position
[ 226.664183][ T6007] NILFS (loop0): recovery complete
[pid 6007] close(4) = 0
[pid 6007] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6007] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 226.670128][ T6008] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6007] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6007] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6007] exit_group(0) = ?
[pid 6007] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6007, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./469", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./469", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./469/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./469/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./469/binderfs") = 0
umount2("./469/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./469/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./469/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./469/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./469/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./469/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./469") = 0
mkdir("./470", 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=0x555555db65d0) = 6009
./strace-static-x86_64: Process 6009 attached
[pid 6009] chdir("./470") = 0
[pid 6009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6009] setpgid(0, 0) = 0
[pid 6009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6009] write(3, "1000", 4) = 4
[pid 6009] close(3) = 0
[pid 6009] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6009] memfd_create("syzkaller", 0) = 3
[pid 6009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6009] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6009] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6009] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6009] close(3) = 0
[pid 6009] mkdir("./file0", 0777) = 0
[pid 6009] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6009] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6009] chdir("./file0") = 0
[ 226.957248][ T6009] loop0: detected capacity change from 0 to 4096
[ 226.975460][ T6009] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 226.983848][ T6009] NILFS (loop0): trying rollback from an earlier position
[ 226.998075][ T6009] NILFS (loop0): recovery complete
[pid 6009] ioctl(4, LOOP_CLR_FD) = 0
[pid 6009] close(4) = 0
[pid 6009] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6009] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 227.003883][ T6010] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 227.017709][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 227.017720][ T27] audit: type=1800 audit(1676306914.778:472): pid=6009 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6009] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6009] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6009] exit_group(0) = ?
[pid 6009] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6009, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./470", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./470", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./470/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./470/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./470/binderfs") = 0
umount2("./470/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./470/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./470/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./470/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./470/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./470/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./470") = 0
mkdir("./471", 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=0x555555db65d0) = 6011
./strace-static-x86_64: Process 6011 attached
[pid 6011] chdir("./471") = 0
[pid 6011] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6011] setpgid(0, 0) = 0
[pid 6011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6011] write(3, "1000", 4) = 4
[pid 6011] close(3) = 0
[pid 6011] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6011] memfd_create("syzkaller", 0) = 3
[pid 6011] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6011] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6011] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6011] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6011] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6011] close(3) = 0
[pid 6011] mkdir("./file0", 0777) = 0
[ 227.312018][ T6011] loop0: detected capacity change from 0 to 4096
[ 227.326857][ T6011] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 227.334863][ T6011] NILFS (loop0): trying rollback from an earlier position
[ 227.348817][ T6011] NILFS (loop0): recovery complete
[pid 6011] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6011] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6011] chdir("./file0") = 0
[pid 6011] ioctl(4, LOOP_CLR_FD) = 0
[pid 6011] close(4) = 0
[pid 6011] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6011] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 227.354710][ T6012] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 227.367725][ T27] audit: type=1800 audit(1676306915.128:473): pid=6011 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6011] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6011] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6011] exit_group(0) = ?
[pid 6011] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6011, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./471", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./471", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./471/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./471/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./471/binderfs") = 0
umount2("./471/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./471/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./471/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./471/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./471/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./471/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./471") = 0
mkdir("./472", 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=0x555555db65d0) = 6016
./strace-static-x86_64: Process 6016 attached
[pid 6016] chdir("./472") = 0
[pid 6016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6016] setpgid(0, 0) = 0
[pid 6016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6016] write(3, "1000", 4) = 4
[pid 6016] close(3) = 0
[pid 6016] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6016] memfd_create("syzkaller", 0) = 3
[pid 6016] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6016] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6016] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6016] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6016] close(3) = 0
[pid 6016] mkdir("./file0", 0777) = 0
[pid 6016] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6016] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6016] chdir("./file0") = 0
[pid 6016] ioctl(4, LOOP_CLR_FD) = 0
[ 227.669496][ T6016] loop0: detected capacity change from 0 to 4096
[ 227.685483][ T6016] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 227.693634][ T6016] NILFS (loop0): trying rollback from an earlier position
[ 227.707409][ T6016] NILFS (loop0): recovery complete
[pid 6016] close(4) = 0
[pid 6016] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6016] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 227.713148][ T6017] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 227.734145][ T27] audit: type=1800 audit(1676306915.488:474): pid=6016 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6016] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6016] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6016] exit_group(0) = ?
[pid 6016] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6016, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./472", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./472", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./472/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./472/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./472/binderfs") = 0
umount2("./472/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./472/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./472/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./472/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./472/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./472/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./472") = 0
mkdir("./473", 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=0x555555db65d0) = 6018
./strace-static-x86_64: Process 6018 attached
[pid 6018] chdir("./473") = 0
[pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6018] setpgid(0, 0) = 0
[pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6018] write(3, "1000", 4) = 4
[pid 6018] close(3) = 0
[pid 6018] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6018] memfd_create("syzkaller", 0) = 3
[pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6018] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6018] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6018] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6018] close(3) = 0
[pid 6018] mkdir("./file0", 0777) = 0
[ 228.011625][ T6018] loop0: detected capacity change from 0 to 4096
[ 228.028323][ T6018] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 228.036427][ T6018] NILFS (loop0): trying rollback from an earlier position
[ 228.050043][ T6018] NILFS (loop0): recovery complete
[pid 6018] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6018] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6018] chdir("./file0") = 0
[pid 6018] ioctl(4, LOOP_CLR_FD) = 0
[pid 6018] close(4) = 0
[pid 6018] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6018] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 228.055995][ T6019] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 228.070427][ T27] audit: type=1800 audit(1676306915.828:475): pid=6018 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6018] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6018] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6018] exit_group(0) = ?
[pid 6018] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6018, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./473", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./473", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./473/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./473/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./473/binderfs") = 0
umount2("./473/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./473/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./473/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./473/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./473/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./473/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./473") = 0
mkdir("./474", 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=0x555555db65d0) = 6020
./strace-static-x86_64: Process 6020 attached
[pid 6020] chdir("./474") = 0
[pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6020] setpgid(0, 0) = 0
[pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6020] write(3, "1000", 4) = 4
[pid 6020] close(3) = 0
[pid 6020] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6020] memfd_create("syzkaller", 0) = 3
[pid 6020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6020] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6020] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6020] close(3) = 0
[pid 6020] mkdir("./file0", 0777) = 0
[pid 6020] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6020] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6020] chdir("./file0") = 0
[ 228.340216][ T6020] loop0: detected capacity change from 0 to 4096
[ 228.358440][ T6020] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 228.366592][ T6020] NILFS (loop0): trying rollback from an earlier position
[ 228.380494][ T6020] NILFS (loop0): recovery complete
[pid 6020] ioctl(4, LOOP_CLR_FD) = 0
[pid 6020] close(4) = 0
[pid 6020] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6020] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 228.386496][ T6021] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 228.393260][ T27] audit: type=1800 audit(1676306916.148:476): pid=6020 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6020] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6020] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6020] exit_group(0) = ?
[pid 6020] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./474", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./474", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./474/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./474/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./474/binderfs") = 0
umount2("./474/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./474/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./474/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./474/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./474/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./474/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./474") = 0
mkdir("./475", 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=0x555555db65d0) = 6022
./strace-static-x86_64: Process 6022 attached
[pid 6022] chdir("./475") = 0
[pid 6022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6022] setpgid(0, 0) = 0
[pid 6022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6022] write(3, "1000", 4) = 4
[pid 6022] close(3) = 0
[pid 6022] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6022] memfd_create("syzkaller", 0) = 3
[pid 6022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6022] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6022] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6022] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6022] close(3) = 0
[pid 6022] mkdir("./file0", 0777) = 0
[ 228.677626][ T6022] loop0: detected capacity change from 0 to 4096
[ 228.694561][ T6022] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 228.702663][ T6022] NILFS (loop0): trying rollback from an earlier position
[ 228.715476][ T6022] NILFS (loop0): recovery complete
[pid 6022] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6022] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6022] chdir("./file0") = 0
[pid 6022] ioctl(4, LOOP_CLR_FD) = 0
[pid 6022] close(4) = 0
[pid 6022] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6022] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 228.721538][ T6023] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 228.734068][ T27] audit: type=1800 audit(1676306916.488:477): pid=6022 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6022] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6022] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6022] exit_group(0) = ?
[pid 6022] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6022, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./475", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./475", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./475/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./475/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./475/binderfs") = 0
umount2("./475/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./475/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./475/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./475/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./475/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./475/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./475") = 0
mkdir("./476", 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=0x555555db65d0) = 6024
./strace-static-x86_64: Process 6024 attached
[pid 6024] chdir("./476") = 0
[pid 6024] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6024] setpgid(0, 0) = 0
[pid 6024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6024] write(3, "1000", 4) = 4
[pid 6024] close(3) = 0
[pid 6024] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6024] memfd_create("syzkaller", 0) = 3
[pid 6024] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6024] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6024] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6024] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6024] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6024] close(3) = 0
[pid 6024] mkdir("./file0", 0777) = 0
[pid 6024] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6024] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 229.027969][ T6024] loop0: detected capacity change from 0 to 4096
[ 229.042717][ T6024] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 229.050782][ T6024] NILFS (loop0): trying rollback from an earlier position
[ 229.064938][ T6024] NILFS (loop0): recovery complete
[pid 6024] chdir("./file0") = 0
[pid 6024] ioctl(4, LOOP_CLR_FD) = 0
[pid 6024] close(4) = 0
[pid 6024] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6024] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 229.071478][ T6025] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 229.084226][ T27] audit: type=1800 audit(1676306916.848:478): pid=6024 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6024] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6024] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6024] exit_group(0) = ?
[pid 6024] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6024, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./476", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./476", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./476/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./476/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./476/binderfs") = 0
umount2("./476/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./476/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./476/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./476/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./476/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./476/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./476") = 0
mkdir("./477", 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=0x555555db65d0) = 6026
./strace-static-x86_64: Process 6026 attached
[pid 6026] chdir("./477") = 0
[pid 6026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6026] setpgid(0, 0) = 0
[pid 6026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6026] write(3, "1000", 4) = 4
[pid 6026] close(3) = 0
[pid 6026] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6026] memfd_create("syzkaller", 0) = 3
[pid 6026] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6026] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6026] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6026] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6026] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6026] close(3) = 0
[pid 6026] mkdir("./file0", 0777) = 0
[pid 6026] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 229.353622][ T6026] loop0: detected capacity change from 0 to 4096
[ 229.374120][ T6026] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 229.382503][ T6026] NILFS (loop0): trying rollback from an earlier position
[ 229.395537][ T6026] NILFS (loop0): recovery complete
[pid 6026] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6026] chdir("./file0") = 0
[pid 6026] ioctl(4, LOOP_CLR_FD) = 0
[pid 6026] close(4) = 0
[pid 6026] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6026] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 229.402167][ T6028] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 229.415964][ T27] audit: type=1800 audit(1676306917.168:479): pid=6026 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6026] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6026] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6026] exit_group(0) = ?
[pid 6026] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6026, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./477", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./477", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./477/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./477/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./477/binderfs") = 0
umount2("./477/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./477/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./477/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./477/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./477/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./477/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./477") = 0
mkdir("./478", 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=0x555555db65d0) = 6029
./strace-static-x86_64: Process 6029 attached
[pid 6029] chdir("./478") = 0
[pid 6029] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6029] setpgid(0, 0) = 0
[pid 6029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6029] write(3, "1000", 4) = 4
[pid 6029] close(3) = 0
[pid 6029] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6029] memfd_create("syzkaller", 0) = 3
[pid 6029] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6029] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6029] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6029] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6029] close(3) = 0
[pid 6029] mkdir("./file0", 0777) = 0
[pid 6029] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6029] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6029] chdir("./file0") = 0
[pid 6029] ioctl(4, LOOP_CLR_FD) = 0
[ 229.690651][ T6029] loop0: detected capacity change from 0 to 4096
[ 229.705181][ T6029] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 229.713619][ T6029] NILFS (loop0): trying rollback from an earlier position
[ 229.727095][ T6029] NILFS (loop0): recovery complete
[pid 6029] close(4) = 0
[pid 6029] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6029] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 229.732835][ T6030] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 229.751494][ T27] audit: type=1800 audit(1676306917.508:480): pid=6029 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6029] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6029] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6029] exit_group(0) = ?
[pid 6029] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6029, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./478", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./478", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./478/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./478/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./478/binderfs") = 0
umount2("./478/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./478/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./478/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./478/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./478/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./478/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./478") = 0
mkdir("./479", 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=0x555555db65d0) = 6031
./strace-static-x86_64: Process 6031 attached
[pid 6031] chdir("./479") = 0
[pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6031] setpgid(0, 0) = 0
[pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6031] write(3, "1000", 4) = 4
[pid 6031] close(3) = 0
[pid 6031] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6031] memfd_create("syzkaller", 0) = 3
[pid 6031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6031] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6031] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6031] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6031] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6031] close(3) = 0
[pid 6031] mkdir("./file0", 0777) = 0
[ 230.028786][ T6031] loop0: detected capacity change from 0 to 4096
[ 230.044526][ T6031] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 230.052630][ T6031] NILFS (loop0): trying rollback from an earlier position
[ 230.067385][ T6031] NILFS (loop0): recovery complete
[pid 6031] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6031] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6031] chdir("./file0") = 0
[pid 6031] ioctl(4, LOOP_CLR_FD) = 0
[pid 6031] close(4) = 0
[pid 6031] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6031] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 230.073505][ T6032] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 230.096167][ T27] audit: type=1800 audit(1676306917.838:481): pid=6031 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6031] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6031] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6031] exit_group(0) = ?
[pid 6031] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6031, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./479", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./479", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./479/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./479/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./479/binderfs") = 0
umount2("./479/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./479/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./479/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./479/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./479/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./479/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./479") = 0
mkdir("./480", 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=0x555555db65d0) = 6035
./strace-static-x86_64: Process 6035 attached
[pid 6035] chdir("./480") = 0
[pid 6035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6035] setpgid(0, 0) = 0
[pid 6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6035] write(3, "1000", 4) = 4
[pid 6035] close(3) = 0
[pid 6035] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6035] memfd_create("syzkaller", 0) = 3
[pid 6035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6035] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6035] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6035] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6035] close(3) = 0
[pid 6035] mkdir("./file0", 0777) = 0
[ 230.380282][ T6035] loop0: detected capacity change from 0 to 4096
[ 230.396079][ T6035] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 230.404210][ T6035] NILFS (loop0): trying rollback from an earlier position
[ 230.418747][ T6035] NILFS (loop0): recovery complete
[pid 6035] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6035] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6035] chdir("./file0") = 0
[pid 6035] ioctl(4, LOOP_CLR_FD) = 0
[pid 6035] close(4) = 0
[pid 6035] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6035] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 230.424755][ T6036] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6035] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6035] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6035] exit_group(0) = ?
[pid 6035] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6035, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./480", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./480", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./480/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./480/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./480/binderfs") = 0
umount2("./480/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./480/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./480/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./480/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./480/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./480/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./480") = 0
mkdir("./481", 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=0x555555db65d0) = 6037
./strace-static-x86_64: Process 6037 attached
[pid 6037] chdir("./481") = 0
[pid 6037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6037] setpgid(0, 0) = 0
[pid 6037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6037] write(3, "1000", 4) = 4
[pid 6037] close(3) = 0
[pid 6037] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6037] memfd_create("syzkaller", 0) = 3
[pid 6037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6037] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6037] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6037] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6037] close(3) = 0
[pid 6037] mkdir("./file0", 0777) = 0
[ 230.708874][ T6037] loop0: detected capacity change from 0 to 4096
[ 230.724674][ T6037] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 230.732796][ T6037] NILFS (loop0): trying rollback from an earlier position
[ 230.746492][ T6037] NILFS (loop0): recovery complete
[pid 6037] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6037] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6037] chdir("./file0") = 0
[pid 6037] ioctl(4, LOOP_CLR_FD) = 0
[pid 6037] close(4) = 0
[pid 6037] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6037] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 230.752499][ T6038] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6037] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6037] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6037] exit_group(0) = ?
[pid 6037] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6037, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./481", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./481", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./481/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./481/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./481/binderfs") = 0
umount2("./481/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./481/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./481/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./481/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./481/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./481/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./481") = 0
mkdir("./482", 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 6039 attached
, child_tidptr=0x555555db65d0) = 6039
[pid 6039] chdir("./482") = 0
[pid 6039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6039] setpgid(0, 0) = 0
[pid 6039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6039] write(3, "1000", 4) = 4
[pid 6039] close(3) = 0
[pid 6039] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6039] memfd_create("syzkaller", 0) = 3
[pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6039] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6039] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6039] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6039] close(3) = 0
[pid 6039] mkdir("./file0", 0777) = 0
[ 231.015290][ T6039] loop0: detected capacity change from 0 to 4096
[ 231.032347][ T6039] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 231.040475][ T6039] NILFS (loop0): trying rollback from an earlier position
[ 231.054422][ T6039] NILFS (loop0): recovery complete
[pid 6039] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6039] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6039] chdir("./file0") = 0
[pid 6039] ioctl(4, LOOP_CLR_FD) = 0
[pid 6039] close(4) = 0
[pid 6039] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6039] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 231.060291][ T6040] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6039] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6039] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6039] exit_group(0) = ?
[pid 6039] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6039, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./482", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./482", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./482/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./482/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./482/binderfs") = 0
umount2("./482/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./482/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./482/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./482/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./482/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./482/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./482") = 0
mkdir("./483", 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=0x555555db65d0) = 6041
./strace-static-x86_64: Process 6041 attached
[pid 6041] chdir("./483") = 0
[pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6041] setpgid(0, 0) = 0
[pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6041] write(3, "1000", 4) = 4
[pid 6041] close(3) = 0
[pid 6041] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6041] memfd_create("syzkaller", 0) = 3
[pid 6041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6041] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6041] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6041] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6041] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6041] close(3) = 0
[pid 6041] mkdir("./file0", 0777) = 0
[ 231.319305][ T6041] loop0: detected capacity change from 0 to 4096
[ 231.335436][ T6041] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 231.343523][ T6041] NILFS (loop0): trying rollback from an earlier position
[ 231.357602][ T6041] NILFS (loop0): recovery complete
[pid 6041] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6041] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6041] chdir("./file0") = 0
[pid 6041] ioctl(4, LOOP_CLR_FD) = 0
[pid 6041] close(4) = 0
[pid 6041] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6041] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 231.363506][ T6042] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6041] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6041] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6041] exit_group(0) = ?
[pid 6041] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6041, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./483", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./483", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./483/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./483/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./483/binderfs") = 0
umount2("./483/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./483/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./483/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./483/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./483/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./483/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./483") = 0
mkdir("./484", 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=0x555555db65d0) = 6043
./strace-static-x86_64: Process 6043 attached
[pid 6043] chdir("./484") = 0
[pid 6043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6043] setpgid(0, 0) = 0
[pid 6043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6043] write(3, "1000", 4) = 4
[pid 6043] close(3) = 0
[pid 6043] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6043] memfd_create("syzkaller", 0) = 3
[pid 6043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6043] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6043] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6043] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6043] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6043] close(3) = 0
[pid 6043] mkdir("./file0", 0777) = 0
[ 231.635746][ T6043] loop0: detected capacity change from 0 to 4096
[ 231.651829][ T6043] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 231.659902][ T6043] NILFS (loop0): trying rollback from an earlier position
[ 231.673534][ T6043] NILFS (loop0): recovery complete
[pid 6043] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6043] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6043] chdir("./file0") = 0
[pid 6043] ioctl(4, LOOP_CLR_FD) = 0
[pid 6043] close(4) = 0
[pid 6043] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6043] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 231.679648][ T6044] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6043] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6043] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6043] exit_group(0) = ?
[pid 6043] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6043, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./484", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./484", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./484/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./484/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./484/binderfs") = 0
umount2("./484/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./484/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./484/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./484/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./484/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./484/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./484") = 0
mkdir("./485", 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=0x555555db65d0) = 6045
./strace-static-x86_64: Process 6045 attached
[pid 6045] chdir("./485") = 0
[pid 6045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6045] setpgid(0, 0) = 0
[pid 6045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6045] write(3, "1000", 4) = 4
[pid 6045] close(3) = 0
[pid 6045] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6045] memfd_create("syzkaller", 0) = 3
[pid 6045] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6045] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6045] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6045] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6045] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6045] close(3) = 0
[pid 6045] mkdir("./file0", 0777) = 0
[pid 6045] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6045] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6045] chdir("./file0") = 0
[pid 6045] ioctl(4, LOOP_CLR_FD) = 0
[pid 6045] close(4) = 0
[pid 6045] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6045] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 231.963494][ T6045] loop0: detected capacity change from 0 to 4096
[ 231.979881][ T6045] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 231.988041][ T6045] NILFS (loop0): trying rollback from an earlier position
[ 232.002450][ T6045] NILFS (loop0): recovery complete
[ 232.008366][ T6046] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6045] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6045] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6045] exit_group(0) = ?
[pid 6045] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6045, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./485", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./485", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./485/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./485/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./485/binderfs") = 0
umount2("./485/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./485/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./485/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./485/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./485/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./485/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./485") = 0
mkdir("./486", 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=0x555555db65d0) = 6047
./strace-static-x86_64: Process 6047 attached
[pid 6047] chdir("./486") = 0
[pid 6047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6047] setpgid(0, 0) = 0
[pid 6047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6047] write(3, "1000", 4) = 4
[pid 6047] close(3) = 0
[pid 6047] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6047] memfd_create("syzkaller", 0) = 3
[pid 6047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6047] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6047] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6047] close(3) = 0
[pid 6047] mkdir("./file0", 0777) = 0
[pid 6047] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6047] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6047] chdir("./file0") = 0
[pid 6047] ioctl(4, LOOP_CLR_FD) = 0
[ 232.300459][ T6047] loop0: detected capacity change from 0 to 4096
[ 232.316718][ T6047] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 232.324798][ T6047] NILFS (loop0): trying rollback from an earlier position
[ 232.338907][ T6047] NILFS (loop0): recovery complete
[pid 6047] close(4) = 0
[pid 6047] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6047] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 232.345215][ T6048] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 232.358236][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 232.358249][ T27] audit: type=1800 audit(1676306920.118:488): pid=6047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6047] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6047] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6047] exit_group(0) = ?
[pid 6047] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6047, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./486", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./486", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./486/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./486/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./486/binderfs") = 0
umount2("./486/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./486/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./486/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./486/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./486/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./486/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./486") = 0
mkdir("./487", 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=0x555555db65d0) = 6049
./strace-static-x86_64: Process 6049 attached
[pid 6049] chdir("./487") = 0
[pid 6049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6049] setpgid(0, 0) = 0
[pid 6049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6049] write(3, "1000", 4) = 4
[pid 6049] close(3) = 0
[pid 6049] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6049] memfd_create("syzkaller", 0) = 3
[pid 6049] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6049] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6049] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6049] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6049] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6049] close(3) = 0
[pid 6049] mkdir("./file0", 0777) = 0
[ 232.634134][ T6049] loop0: detected capacity change from 0 to 4096
[ 232.650893][ T6049] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 232.658953][ T6049] NILFS (loop0): trying rollback from an earlier position
[ 232.672471][ T6049] NILFS (loop0): recovery complete
[pid 6049] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6049] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6049] chdir("./file0") = 0
[pid 6049] ioctl(4, LOOP_CLR_FD) = 0
[pid 6049] close(4) = 0
[pid 6049] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6049] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 232.678380][ T6050] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 232.692571][ T27] audit: type=1800 audit(1676306920.448:489): pid=6049 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6049] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6049] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6049] exit_group(0) = ?
[pid 6049] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6049, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./487", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./487", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./487/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./487/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./487/binderfs") = 0
umount2("./487/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./487/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./487/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./487/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./487/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./487/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./487") = 0
mkdir("./488", 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=0x555555db65d0) = 6051
./strace-static-x86_64: Process 6051 attached
[pid 6051] chdir("./488") = 0
[pid 6051] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6051] setpgid(0, 0) = 0
[pid 6051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6051] write(3, "1000", 4) = 4
[pid 6051] close(3) = 0
[pid 6051] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6051] memfd_create("syzkaller", 0) = 3
[pid 6051] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6051] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6051] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6051] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6051] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6051] close(3) = 0
[pid 6051] mkdir("./file0", 0777) = 0
[pid 6051] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6051] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6051] chdir("./file0") = 0
[pid 6051] ioctl(4, LOOP_CLR_FD) = 0
[ 232.971757][ T6051] loop0: detected capacity change from 0 to 4096
[ 232.987595][ T6051] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 232.995593][ T6051] NILFS (loop0): trying rollback from an earlier position
[ 233.009671][ T6051] NILFS (loop0): recovery complete
[pid 6051] close(4) = 0
[pid 6051] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6051] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 233.016258][ T6052] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 233.033110][ T27] audit: type=1800 audit(1676306920.788:490): pid=6051 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6051] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6051] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6051] exit_group(0) = ?
[pid 6051] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6051, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./488", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./488", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./488/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./488/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./488/binderfs") = 0
umount2("./488/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./488/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./488/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./488/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./488/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./488/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./488") = 0
mkdir("./489", 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=0x555555db65d0) = 6053
./strace-static-x86_64: Process 6053 attached
[pid 6053] chdir("./489") = 0
[pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6053] setpgid(0, 0) = 0
[pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6053] write(3, "1000", 4) = 4
[pid 6053] close(3) = 0
[pid 6053] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6053] memfd_create("syzkaller", 0) = 3
[pid 6053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6053] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6053] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6053] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6053] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6053] close(3) = 0
[pid 6053] mkdir("./file0", 0777) = 0
[pid 6053] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6053] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6053] chdir("./file0") = 0
[ 233.309585][ T6053] loop0: detected capacity change from 0 to 4096
[ 233.325101][ T6053] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 233.333293][ T6053] NILFS (loop0): trying rollback from an earlier position
[ 233.349289][ T6053] NILFS (loop0): recovery complete
[pid 6053] ioctl(4, LOOP_CLR_FD) = 0
[pid 6053] close(4) = 0
[pid 6053] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6053] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 233.355350][ T6054] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 233.369079][ T27] audit: type=1800 audit(1676306921.128:491): pid=6053 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6053] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6053] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6053] exit_group(0) = ?
[pid 6053] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6053, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./489", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./489", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./489/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./489/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./489/binderfs") = 0
umount2("./489/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./489/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./489/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./489/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./489/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./489/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./489") = 0
mkdir("./490", 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=0x555555db65d0) = 6055
./strace-static-x86_64: Process 6055 attached
[pid 6055] chdir("./490") = 0
[pid 6055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6055] setpgid(0, 0) = 0
[pid 6055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6055] write(3, "1000", 4) = 4
[pid 6055] close(3) = 0
[pid 6055] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6055] memfd_create("syzkaller", 0) = 3
[pid 6055] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6055] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6055] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6055] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6055] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6055] close(3) = 0
[pid 6055] mkdir("./file0", 0777) = 0
[ 233.651766][ T6055] loop0: detected capacity change from 0 to 4096
[ 233.667122][ T6055] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 233.675224][ T6055] NILFS (loop0): trying rollback from an earlier position
[ 233.689157][ T6055] NILFS (loop0): recovery complete
[pid 6055] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6055] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6055] chdir("./file0") = 0
[pid 6055] ioctl(4, LOOP_CLR_FD) = 0
[pid 6055] close(4) = 0
[pid 6055] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6055] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 233.695073][ T6056] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 233.716200][ T27] audit: type=1800 audit(1676306921.468:492): pid=6055 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6055] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6055] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6055] exit_group(0) = ?
[pid 6055] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6055, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./490", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./490", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./490/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./490/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./490/binderfs") = 0
umount2("./490/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./490/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./490/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./490/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./490/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./490/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./490") = 0
mkdir("./491", 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=0x555555db65d0) = 6057
./strace-static-x86_64: Process 6057 attached
[pid 6057] chdir("./491") = 0
[pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6057] setpgid(0, 0) = 0
[pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6057] write(3, "1000", 4) = 4
[pid 6057] close(3) = 0
[pid 6057] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6057] memfd_create("syzkaller", 0) = 3
[pid 6057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6057] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6057] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6057] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6057] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6057] close(3) = 0
[pid 6057] mkdir("./file0", 0777) = 0
[ 234.005338][ T6057] loop0: detected capacity change from 0 to 4096
[ 234.021778][ T6057] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 234.029857][ T6057] NILFS (loop0): trying rollback from an earlier position
[ 234.043669][ T6057] NILFS (loop0): recovery complete
[pid 6057] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6057] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6057] chdir("./file0") = 0
[pid 6057] ioctl(4, LOOP_CLR_FD) = 0
[pid 6057] close(4) = 0
[pid 6057] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6057] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 234.049969][ T6058] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 234.066242][ T27] audit: type=1800 audit(1676306921.818:493): pid=6057 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6057] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6057] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6057] exit_group(0) = ?
[pid 6057] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6057, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./491", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./491", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./491/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./491/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./491/binderfs") = 0
umount2("./491/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./491/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./491/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./491/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./491/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./491/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./491") = 0
mkdir("./492", 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=0x555555db65d0) = 6059
./strace-static-x86_64: Process 6059 attached
[pid 6059] chdir("./492") = 0
[pid 6059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6059] setpgid(0, 0) = 0
[pid 6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6059] write(3, "1000", 4) = 4
[pid 6059] close(3) = 0
[pid 6059] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6059] memfd_create("syzkaller", 0) = 3
[pid 6059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6059] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6059] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6059] close(3) = 0
[pid 6059] mkdir("./file0", 0777) = 0
[ 234.350277][ T6059] loop0: detected capacity change from 0 to 4096
[ 234.366469][ T6059] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 234.374549][ T6059] NILFS (loop0): trying rollback from an earlier position
[ 234.388658][ T6059] NILFS (loop0): recovery complete
[pid 6059] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6059] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6059] chdir("./file0") = 0
[pid 6059] ioctl(4, LOOP_CLR_FD) = 0
[pid 6059] close(4) = 0
[pid 6059] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6059] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 234.394755][ T6060] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 234.398105][ T27] audit: type=1800 audit(1676306922.158:494): pid=6059 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6059] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6059] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6059] exit_group(0) = ?
[pid 6059] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6059, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./492", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./492", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./492/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./492/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./492/binderfs") = 0
umount2("./492/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./492/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./492/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./492/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./492/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./492/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./492") = 0
mkdir("./493", 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=0x555555db65d0) = 6061
./strace-static-x86_64: Process 6061 attached
[pid 6061] chdir("./493") = 0
[pid 6061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6061] setpgid(0, 0) = 0
[pid 6061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6061] write(3, "1000", 4) = 4
[pid 6061] close(3) = 0
[pid 6061] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6061] memfd_create("syzkaller", 0) = 3
[pid 6061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6061] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6061] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6061] close(3) = 0
[pid 6061] mkdir("./file0", 0777) = 0
[ 234.691331][ T6061] loop0: detected capacity change from 0 to 4096
[ 234.707772][ T6061] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 234.715836][ T6061] NILFS (loop0): trying rollback from an earlier position
[ 234.729326][ T6061] NILFS (loop0): recovery complete
[pid 6061] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6061] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6061] chdir("./file0") = 0
[pid 6061] ioctl(4, LOOP_CLR_FD) = 0
[pid 6061] close(4) = 0
[pid 6061] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6061] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 234.735062][ T6062] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 234.759286][ T27] audit: type=1800 audit(1676306922.498:495): pid=6061 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6061] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6061] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6061] exit_group(0) = ?
[pid 6061] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6061, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./493", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./493", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./493/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./493/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./493/binderfs") = 0
umount2("./493/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./493/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./493/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./493/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./493/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./493/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./493") = 0
mkdir("./494", 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=0x555555db65d0) = 6063
./strace-static-x86_64: Process 6063 attached
[pid 6063] chdir("./494") = 0
[pid 6063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6063] setpgid(0, 0) = 0
[pid 6063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6063] write(3, "1000", 4) = 4
[pid 6063] close(3) = 0
[pid 6063] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6063] memfd_create("syzkaller", 0) = 3
[pid 6063] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6063] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6063] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6063] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6063] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6063] close(3) = 0
[pid 6063] mkdir("./file0", 0777) = 0
[ 235.011335][ T6063] loop0: detected capacity change from 0 to 4096
[ 235.026563][ T6063] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 235.034586][ T6063] NILFS (loop0): trying rollback from an earlier position
[ 235.048053][ T6063] NILFS (loop0): recovery complete
[pid 6063] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6063] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6063] chdir("./file0") = 0
[pid 6063] ioctl(4, LOOP_CLR_FD) = 0
[pid 6063] close(4) = 0
[pid 6063] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6063] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 235.053801][ T6064] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 235.068123][ T27] audit: type=1800 audit(1676306922.828:496): pid=6063 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6063] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6063] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6063] exit_group(0) = ?
[pid 6063] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6063, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./494", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./494", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./494/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./494/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./494/binderfs") = 0
umount2("./494/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./494/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./494/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./494/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./494/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./494/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./494") = 0
mkdir("./495", 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=0x555555db65d0) = 6065
./strace-static-x86_64: Process 6065 attached
[pid 6065] chdir("./495") = 0
[pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6065] setpgid(0, 0) = 0
[pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6065] write(3, "1000", 4) = 4
[pid 6065] close(3) = 0
[pid 6065] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6065] memfd_create("syzkaller", 0) = 3
[pid 6065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6065] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6065] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6065] close(3) = 0
[pid 6065] mkdir("./file0", 0777) = 0
[ 235.334641][ T6065] loop0: detected capacity change from 0 to 4096
[ 235.349880][ T6065] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 235.357943][ T6065] NILFS (loop0): trying rollback from an earlier position
[ 235.371295][ T6065] NILFS (loop0): recovery complete
[pid 6065] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6065] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6065] chdir("./file0") = 0
[pid 6065] ioctl(4, LOOP_CLR_FD) = 0
[pid 6065] close(4) = 0
[pid 6065] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6065] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 235.377198][ T6066] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 235.391325][ T27] audit: type=1800 audit(1676306923.158:497): pid=6065 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6065] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6065] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6065] exit_group(0) = ?
[pid 6065] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6065, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./495", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./495", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./495/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./495/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./495/binderfs") = 0
umount2("./495/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./495/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./495/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./495/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./495/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./495/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./495") = 0
mkdir("./496", 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=0x555555db65d0) = 6067
./strace-static-x86_64: Process 6067 attached
[pid 6067] chdir("./496") = 0
[pid 6067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6067] setpgid(0, 0) = 0
[pid 6067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6067] write(3, "1000", 4) = 4
[pid 6067] close(3) = 0
[pid 6067] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6067] memfd_create("syzkaller", 0) = 3
[pid 6067] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6067] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6067] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6067] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6067] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6067] close(3) = 0
[pid 6067] mkdir("./file0", 0777) = 0
[ 235.669307][ T6067] loop0: detected capacity change from 0 to 4096
[ 235.684267][ T6067] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 235.692333][ T6067] NILFS (loop0): trying rollback from an earlier position
[ 235.708398][ T6067] NILFS (loop0): recovery complete
[pid 6067] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6067] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6067] chdir("./file0") = 0
[pid 6067] ioctl(4, LOOP_CLR_FD) = 0
[pid 6067] close(4) = 0
[pid 6067] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6067] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 235.714696][ T6068] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6067] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6067] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6067] exit_group(0) = ?
[pid 6067] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6067, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./496", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./496", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./496/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./496/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./496/binderfs") = 0
umount2("./496/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./496/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./496/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./496/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./496/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./496/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./496") = 0
mkdir("./497", 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=0x555555db65d0) = 6069
./strace-static-x86_64: Process 6069 attached
[pid 6069] chdir("./497") = 0
[pid 6069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6069] setpgid(0, 0) = 0
[pid 6069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6069] write(3, "1000", 4) = 4
[pid 6069] close(3) = 0
[pid 6069] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6069] memfd_create("syzkaller", 0) = 3
[pid 6069] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6069] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6069] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6069] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6069] close(3) = 0
[pid 6069] mkdir("./file0", 0777) = 0
[ 236.018827][ T6069] loop0: detected capacity change from 0 to 4096
[ 236.036020][ T6069] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 236.044162][ T6069] NILFS (loop0): trying rollback from an earlier position
[ 236.058609][ T6069] NILFS (loop0): recovery complete
[pid 6069] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6069] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6069] chdir("./file0") = 0
[pid 6069] ioctl(4, LOOP_CLR_FD) = 0
[pid 6069] close(4) = 0
[pid 6069] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6069] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 236.064619][ T6070] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6069] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6069] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6069] exit_group(0) = ?
[pid 6069] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6069, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./497", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./497", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./497/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./497/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./497/binderfs") = 0
umount2("./497/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./497/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./497/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./497/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./497/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./497/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./497") = 0
mkdir("./498", 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=0x555555db65d0) = 6071
./strace-static-x86_64: Process 6071 attached
[pid 6071] chdir("./498") = 0
[pid 6071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6071] setpgid(0, 0) = 0
[pid 6071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6071] write(3, "1000", 4) = 4
[pid 6071] close(3) = 0
[pid 6071] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6071] memfd_create("syzkaller", 0) = 3
[pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6071] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6071] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6071] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6071] close(3) = 0
[pid 6071] mkdir("./file0", 0777) = 0
[pid 6071] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6071] chdir("./file0") = 0
[pid 6071] ioctl(4, LOOP_CLR_FD) = 0
[ 236.337381][ T6071] loop0: detected capacity change from 0 to 4096
[ 236.352838][ T6071] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 236.360944][ T6071] NILFS (loop0): trying rollback from an earlier position
[ 236.374323][ T6071] NILFS (loop0): recovery complete
[pid 6071] close(4) = 0
[pid 6071] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6071] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 236.386233][ T6072] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6071] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6071] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6071] exit_group(0) = ?
[pid 6071] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6071, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./498", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./498", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./498/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./498/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./498/binderfs") = 0
umount2("./498/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./498/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./498/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./498/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./498/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./498/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./498") = 0
mkdir("./499", 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=0x555555db65d0) = 6073
./strace-static-x86_64: Process 6073 attached
[pid 6073] chdir("./499") = 0
[pid 6073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6073] setpgid(0, 0) = 0
[pid 6073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6073] write(3, "1000", 4) = 4
[pid 6073] close(3) = 0
[pid 6073] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6073] memfd_create("syzkaller", 0) = 3
[pid 6073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6073] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6073] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6073] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6073] close(3) = 0
[pid 6073] mkdir("./file0", 0777) = 0
[ 236.658583][ T6073] loop0: detected capacity change from 0 to 4096
[ 236.673755][ T6073] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 236.681824][ T6073] NILFS (loop0): trying rollback from an earlier position
[ 236.696553][ T6073] NILFS (loop0): recovery complete
[pid 6073] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6073] chdir("./file0") = 0
[pid 6073] ioctl(4, LOOP_CLR_FD) = 0
[pid 6073] close(4) = 0
[pid 6073] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6073] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 236.702352][ T6074] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6073] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6073] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6073] exit_group(0) = ?
[pid 6073] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6073, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./499", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./499", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./499/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./499/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./499/binderfs") = 0
umount2("./499/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./499/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./499/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./499/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./499/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./499/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./499") = 0
mkdir("./500", 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=0x555555db65d0) = 6075
./strace-static-x86_64: Process 6075 attached
[pid 6075] chdir("./500") = 0
[pid 6075] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6075] setpgid(0, 0) = 0
[pid 6075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6075] write(3, "1000", 4) = 4
[pid 6075] close(3) = 0
[pid 6075] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6075] memfd_create("syzkaller", 0) = 3
[pid 6075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6075] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6075] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6075] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6075] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6075] close(3) = 0
[pid 6075] mkdir("./file0", 0777) = 0
[ 236.974418][ T6075] loop0: detected capacity change from 0 to 4096
[ 236.990097][ T6075] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 236.998204][ T6075] NILFS (loop0): trying rollback from an earlier position
[ 237.011631][ T6075] NILFS (loop0): recovery complete
[pid 6075] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6075] chdir("./file0") = 0
[pid 6075] ioctl(4, LOOP_CLR_FD) = 0
[pid 6075] close(4) = 0
[pid 6075] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6075] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 237.017481][ T6076] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6075] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6075] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6075] exit_group(0) = ?
[pid 6075] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6075, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./500", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./500", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./500/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./500/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./500/binderfs") = 0
umount2("./500/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./500/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./500/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./500/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./500/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./500/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./500") = 0
mkdir("./501", 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=0x555555db65d0) = 6077
./strace-static-x86_64: Process 6077 attached
[pid 6077] chdir("./501") = 0
[pid 6077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6077] setpgid(0, 0) = 0
[pid 6077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6077] write(3, "1000", 4) = 4
[pid 6077] close(3) = 0
[pid 6077] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6077] memfd_create("syzkaller", 0) = 3
[pid 6077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6077] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6077] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6077] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6077] close(3) = 0
[pid 6077] mkdir("./file0", 0777) = 0
[ 237.293142][ T6077] loop0: detected capacity change from 0 to 4096
[ 237.309085][ T6077] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 237.317189][ T6077] NILFS (loop0): trying rollback from an earlier position
[ 237.331423][ T6077] NILFS (loop0): recovery complete
[pid 6077] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6077] chdir("./file0") = 0
[pid 6077] ioctl(4, LOOP_CLR_FD) = 0
[pid 6077] close(4) = 0
[pid 6077] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6077] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 237.337659][ T6078] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6077] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6077] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6077] exit_group(0) = ?
[pid 6077] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6077, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./501", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./501", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./501/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./501/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./501/binderfs") = 0
umount2("./501/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./501/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./501/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./501/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./501/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./501/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./501") = 0
mkdir("./502", 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=0x555555db65d0) = 6079
./strace-static-x86_64: Process 6079 attached
[pid 6079] chdir("./502") = 0
[pid 6079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6079] setpgid(0, 0) = 0
[pid 6079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6079] write(3, "1000", 4) = 4
[pid 6079] close(3) = 0
[pid 6079] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6079] memfd_create("syzkaller", 0) = 3
[pid 6079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6079] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6079] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6079] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6079] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6079] close(3) = 0
[pid 6079] mkdir("./file0", 0777) = 0
[pid 6079] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6079] chdir("./file0") = 0
[pid 6079] ioctl(4, LOOP_CLR_FD) = 0
[pid 6079] close(4) = 0
[pid 6079] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[ 237.612038][ T6079] loop0: detected capacity change from 0 to 4096
[ 237.627868][ T6079] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 237.635867][ T6079] NILFS (loop0): trying rollback from an earlier position
[ 237.650045][ T6079] NILFS (loop0): recovery complete
[pid 6079] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 237.655898][ T6080] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 237.676242][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 237.676255][ T27] audit: type=1800 audit(1676306925.418:504): pid=6079 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6079] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6079] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6079] exit_group(0) = ?
[pid 6079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6079, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./502", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./502", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./502/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./502/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./502/binderfs") = 0
umount2("./502/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./502/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./502/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./502/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./502/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./502/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./502") = 0
mkdir("./503", 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=0x555555db65d0) = 6081
./strace-static-x86_64: Process 6081 attached
[pid 6081] chdir("./503") = 0
[pid 6081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6081] setpgid(0, 0) = 0
[pid 6081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6081] write(3, "1000", 4) = 4
[pid 6081] close(3) = 0
[pid 6081] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6081] memfd_create("syzkaller", 0) = 3
[pid 6081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6081] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6081] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6081] close(3) = 0
[pid 6081] mkdir("./file0", 0777) = 0
[ 237.957191][ T6081] loop0: detected capacity change from 0 to 4096
[ 237.972492][ T6081] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 237.980532][ T6081] NILFS (loop0): trying rollback from an earlier position
[ 237.994221][ T6081] NILFS (loop0): recovery complete
[pid 6081] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6081] chdir("./file0") = 0
[pid 6081] ioctl(4, LOOP_CLR_FD) = 0
[pid 6081] close(4) = 0
[pid 6081] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6081] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 238.000230][ T6082] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 238.005530][ T27] audit: type=1800 audit(1676306925.758:505): pid=6081 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6081] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6081] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6081] exit_group(0) = ?
[pid 6081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6081, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./503", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./503", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./503/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./503/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./503/binderfs") = 0
umount2("./503/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./503/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./503/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./503/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./503/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./503/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./503") = 0
mkdir("./504", 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=0x555555db65d0) = 6083
./strace-static-x86_64: Process 6083 attached
[pid 6083] chdir("./504") = 0
[pid 6083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6083] setpgid(0, 0) = 0
[pid 6083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6083] write(3, "1000", 4) = 4
[pid 6083] close(3) = 0
[pid 6083] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6083] memfd_create("syzkaller", 0) = 3
[pid 6083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6083] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6083] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6083] close(3) = 0
[pid 6083] mkdir("./file0", 0777) = 0
[ 238.289071][ T6083] loop0: detected capacity change from 0 to 4096
[ 238.305259][ T6083] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 238.313373][ T6083] NILFS (loop0): trying rollback from an earlier position
[ 238.327178][ T6083] NILFS (loop0): recovery complete
[pid 6083] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6083] chdir("./file0") = 0
[pid 6083] ioctl(4, LOOP_CLR_FD) = 0
[pid 6083] close(4) = 0
[pid 6083] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6083] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 238.332989][ T6084] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 238.346406][ T27] audit: type=1800 audit(1676306926.108:506): pid=6083 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6083] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6083] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6083] exit_group(0) = ?
[pid 6083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6083, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./504", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./504", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./504/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./504/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./504/binderfs") = 0
umount2("./504/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./504/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./504/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./504/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./504/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./504/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./504") = 0
mkdir("./505", 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=0x555555db65d0) = 6085
./strace-static-x86_64: Process 6085 attached
[pid 6085] chdir("./505") = 0
[pid 6085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6085] setpgid(0, 0) = 0
[pid 6085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6085] write(3, "1000", 4) = 4
[pid 6085] close(3) = 0
[pid 6085] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6085] memfd_create("syzkaller", 0) = 3
[pid 6085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6085] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6085] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6085] close(3) = 0
[pid 6085] mkdir("./file0", 0777) = 0
[ 238.614209][ T6085] loop0: detected capacity change from 0 to 4096
[ 238.630653][ T6085] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 238.638939][ T6085] NILFS (loop0): trying rollback from an earlier position
[ 238.652568][ T6085] NILFS (loop0): recovery complete
[pid 6085] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6085] chdir("./file0") = 0
[pid 6085] ioctl(4, LOOP_CLR_FD) = 0
[pid 6085] close(4) = 0
[pid 6085] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6085] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 238.658449][ T6086] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 238.666433][ T27] audit: type=1800 audit(1676306926.428:507): pid=6085 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6085] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6085] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6085] exit_group(0) = ?
[pid 6085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6085, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./505", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./505", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./505/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./505/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./505/binderfs") = 0
umount2("./505/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./505/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./505/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./505/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./505/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./505/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./505") = 0
mkdir("./506", 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=0x555555db65d0) = 6087
./strace-static-x86_64: Process 6087 attached
[pid 6087] chdir("./506") = 0
[pid 6087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6087] setpgid(0, 0) = 0
[pid 6087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6087] write(3, "1000", 4) = 4
[pid 6087] close(3) = 0
[pid 6087] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6087] memfd_create("syzkaller", 0) = 3
[pid 6087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6087] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6087] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6087] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6087] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6087] close(3) = 0
[pid 6087] mkdir("./file0", 0777) = 0
[ 238.936817][ T6087] loop0: detected capacity change from 0 to 4096
[ 238.952799][ T6087] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 238.960863][ T6087] NILFS (loop0): trying rollback from an earlier position
[ 238.974355][ T6087] NILFS (loop0): recovery complete
[pid 6087] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6087] chdir("./file0") = 0
[pid 6087] ioctl(4, LOOP_CLR_FD) = 0
[pid 6087] close(4) = 0
[pid 6087] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6087] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 238.980568][ T6088] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 238.994774][ T27] audit: type=1800 audit(1676306926.748:508): pid=6087 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6087] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6087] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6087] exit_group(0) = ?
[pid 6087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6087, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./506", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./506", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./506/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./506/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./506/binderfs") = 0
umount2("./506/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./506/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./506/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./506/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./506/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./506/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./506") = 0
mkdir("./507", 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=0x555555db65d0) = 6089
./strace-static-x86_64: Process 6089 attached
[pid 6089] chdir("./507") = 0
[pid 6089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6089] setpgid(0, 0) = 0
[pid 6089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6089] write(3, "1000", 4) = 4
[pid 6089] close(3) = 0
[pid 6089] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6089] memfd_create("syzkaller", 0) = 3
[pid 6089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6089] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6089] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6089] close(3) = 0
[pid 6089] mkdir("./file0", 0777) = 0
[pid 6089] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6089] chdir("./file0") = 0
[pid 6089] ioctl(4, LOOP_CLR_FD) = 0
[pid 6089] close(4) = 0
[ 239.275433][ T6089] loop0: detected capacity change from 0 to 4096
[ 239.290409][ T6089] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 239.298469][ T6089] NILFS (loop0): trying rollback from an earlier position
[ 239.311376][ T6089] NILFS (loop0): recovery complete
[pid 6089] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6089] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 239.317362][ T6090] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 239.323236][ T27] audit: type=1800 audit(1676306927.078:509): pid=6089 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6089] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6089] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6089] exit_group(0) = ?
[pid 6089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6089, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./507", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./507", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./507/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./507/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./507/binderfs") = 0
umount2("./507/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./507/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./507/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./507/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./507/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./507/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./507") = 0
mkdir("./508", 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=0x555555db65d0) = 6091
./strace-static-x86_64: Process 6091 attached
[pid 6091] chdir("./508") = 0
[pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6091] setpgid(0, 0) = 0
[pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6091] write(3, "1000", 4) = 4
[pid 6091] close(3) = 0
[pid 6091] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6091] memfd_create("syzkaller", 0) = 3
[pid 6091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6091] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6091] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6091] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6091] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6091] close(3) = 0
[pid 6091] mkdir("./file0", 0777) = 0
[pid 6091] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6091] chdir("./file0") = 0
[pid 6091] ioctl(4, LOOP_CLR_FD) = 0
[ 239.605626][ T6091] loop0: detected capacity change from 0 to 4096
[ 239.620507][ T6091] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 239.628545][ T6091] NILFS (loop0): trying rollback from an earlier position
[ 239.642419][ T6091] NILFS (loop0): recovery complete
[pid 6091] close(4) = 0
[pid 6091] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6091] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 239.648830][ T6092] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 239.662296][ T27] audit: type=1800 audit(1676306927.428:510): pid=6091 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6091] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6091] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6091] exit_group(0) = ?
[pid 6091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6091, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./508", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./508", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./508/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./508/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./508/binderfs") = 0
umount2("./508/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./508/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./508/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./508/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./508/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./508/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./508") = 0
mkdir("./509", 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=0x555555db65d0) = 6093
./strace-static-x86_64: Process 6093 attached
[pid 6093] chdir("./509") = 0
[pid 6093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6093] setpgid(0, 0) = 0
[pid 6093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6093] write(3, "1000", 4) = 4
[pid 6093] close(3) = 0
[pid 6093] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6093] memfd_create("syzkaller", 0) = 3
[pid 6093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6093] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6093] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6093] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6093] close(3) = 0
[pid 6093] mkdir("./file0", 0777) = 0
[ 239.943416][ T6093] loop0: detected capacity change from 0 to 4096
[ 239.959767][ T6093] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 239.967886][ T6093] NILFS (loop0): trying rollback from an earlier position
[ 239.981304][ T6093] NILFS (loop0): recovery complete
[pid 6093] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6093] chdir("./file0") = 0
[pid 6093] ioctl(4, LOOP_CLR_FD) = 0
[pid 6093] close(4) = 0
[pid 6093] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6093] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 239.987237][ T6094] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 240.008112][ T27] audit: type=1800 audit(1676306927.768:511): pid=6093 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6093] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6093] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6093] exit_group(0) = ?
[pid 6093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6093, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./509", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./509", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./509/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./509/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./509/binderfs") = 0
umount2("./509/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./509/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./509/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./509/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./509/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./509/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./509") = 0
mkdir("./510", 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=0x555555db65d0) = 6095
./strace-static-x86_64: Process 6095 attached
[pid 6095] chdir("./510") = 0
[pid 6095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6095] setpgid(0, 0) = 0
[pid 6095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6095] write(3, "1000", 4) = 4
[pid 6095] close(3) = 0
[pid 6095] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6095] memfd_create("syzkaller", 0) = 3
[pid 6095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6095] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6095] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6095] close(3) = 0
[pid 6095] mkdir("./file0", 0777) = 0
[pid 6095] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6095] chdir("./file0") = 0
[pid 6095] ioctl(4, LOOP_CLR_FD) = 0
[pid 6095] close(4) = 0
[ 240.281573][ T6095] loop0: detected capacity change from 0 to 4096
[ 240.297515][ T6095] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 240.305523][ T6095] NILFS (loop0): trying rollback from an earlier position
[ 240.319745][ T6095] NILFS (loop0): recovery complete
[pid 6095] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6095] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 240.325682][ T6096] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 240.334434][ T27] audit: type=1800 audit(1676306928.078:512): pid=6095 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6095] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6095] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6095] exit_group(0) = ?
[pid 6095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6095, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./510", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./510", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./510/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./510/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./510/binderfs") = 0
umount2("./510/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./510/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./510/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./510/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./510/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./510/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./510") = 0
mkdir("./511", 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=0x555555db65d0) = 6097
./strace-static-x86_64: Process 6097 attached
[pid 6097] chdir("./511") = 0
[pid 6097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6097] setpgid(0, 0) = 0
[pid 6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6097] write(3, "1000", 4) = 4
[pid 6097] close(3) = 0
[pid 6097] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6097] memfd_create("syzkaller", 0) = 3
[pid 6097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6097] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6097] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6097] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6097] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6097] close(3) = 0
[pid 6097] mkdir("./file0", 0777) = 0
[pid 6097] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6097] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 240.617237][ T6097] loop0: detected capacity change from 0 to 4096
[ 240.635083][ T6097] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 240.643158][ T6097] NILFS (loop0): trying rollback from an earlier position
[ 240.658204][ T6097] NILFS (loop0): recovery complete
[pid 6097] chdir("./file0") = 0
[pid 6097] ioctl(4, LOOP_CLR_FD) = 0
[pid 6097] close(4) = 0
[pid 6097] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6097] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 240.664174][ T6098] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 240.677744][ T27] audit: type=1800 audit(1676306928.438:513): pid=6097 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6097] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6097] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6097] exit_group(0) = ?
[pid 6097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6097, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./511", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./511", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./511/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./511/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./511/binderfs") = 0
umount2("./511/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./511/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./511/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./511/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./511/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./511/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./511") = 0
mkdir("./512", 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=0x555555db65d0) = 6099
./strace-static-x86_64: Process 6099 attached
[pid 6099] chdir("./512") = 0
[pid 6099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6099] setpgid(0, 0) = 0
[pid 6099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6099] write(3, "1000", 4) = 4
[pid 6099] close(3) = 0
[pid 6099] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6099] memfd_create("syzkaller", 0) = 3
[pid 6099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6099] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6099] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6099] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6099] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6099] close(3) = 0
[pid 6099] mkdir("./file0", 0777) = 0
[ 240.941289][ T6099] loop0: detected capacity change from 0 to 4096
[ 240.958112][ T6099] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 240.966214][ T6099] NILFS (loop0): trying rollback from an earlier position
[ 240.980208][ T6099] NILFS (loop0): recovery complete
[pid 6099] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6099] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6099] chdir("./file0") = 0
[pid 6099] ioctl(4, LOOP_CLR_FD) = 0
[pid 6099] close(4) = 0
[pid 6099] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6099] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 240.986186][ T6100] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6099] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6099] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6099] exit_group(0) = ?
[pid 6099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6099, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./512", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./512", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./512/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./512/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./512/binderfs") = 0
umount2("./512/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./512/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./512/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./512/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./512/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./512/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./512") = 0
mkdir("./513", 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=0x555555db65d0) = 6101
./strace-static-x86_64: Process 6101 attached
[pid 6101] chdir("./513") = 0
[pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6101] setpgid(0, 0) = 0
[pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6101] write(3, "1000", 4) = 4
[pid 6101] close(3) = 0
[pid 6101] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6101] memfd_create("syzkaller", 0) = 3
[pid 6101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6101] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6101] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6101] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6101] close(3) = 0
[pid 6101] mkdir("./file0", 0777) = 0
[pid 6101] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6101] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 241.271770][ T6101] loop0: detected capacity change from 0 to 4096
[ 241.288706][ T6101] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 241.296812][ T6101] NILFS (loop0): trying rollback from an earlier position
[ 241.311907][ T6101] NILFS (loop0): recovery complete
[pid 6101] chdir("./file0") = 0
[pid 6101] ioctl(4, LOOP_CLR_FD) = 0
[pid 6101] close(4) = 0
[pid 6101] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6101] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 241.317987][ T6102] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6101] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6101] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6101] exit_group(0) = ?
[pid 6101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6101, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./513", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./513", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./513/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./513/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./513/binderfs") = 0
umount2("./513/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./513/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./513/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./513/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./513/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./513/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./513") = 0
mkdir("./514", 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=0x555555db65d0) = 6103
./strace-static-x86_64: Process 6103 attached
[pid 6103] chdir("./514") = 0
[pid 6103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6103] setpgid(0, 0) = 0
[pid 6103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6103] write(3, "1000", 4) = 4
[pid 6103] close(3) = 0
[pid 6103] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6103] memfd_create("syzkaller", 0) = 3
[pid 6103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6103] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6103] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6103] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6103] close(3) = 0
[pid 6103] mkdir("./file0", 0777) = 0
[pid 6103] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6103] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 241.608494][ T6103] loop0: detected capacity change from 0 to 4096
[ 241.623477][ T6103] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 241.631502][ T6103] NILFS (loop0): trying rollback from an earlier position
[ 241.645206][ T6103] NILFS (loop0): recovery complete
[pid 6103] chdir("./file0") = 0
[pid 6103] ioctl(4, LOOP_CLR_FD) = 0
[pid 6103] close(4) = 0
[pid 6103] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6103] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 241.651049][ T6104] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6103] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6103] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6103] exit_group(0) = ?
[pid 6103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6103, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./514", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./514", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./514/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./514/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./514/binderfs") = 0
umount2("./514/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./514/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./514/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./514/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./514/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./514/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./514") = 0
mkdir("./515", 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=0x555555db65d0) = 6105
./strace-static-x86_64: Process 6105 attached
[pid 6105] chdir("./515") = 0
[pid 6105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6105] setpgid(0, 0) = 0
[pid 6105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6105] write(3, "1000", 4) = 4
[pid 6105] close(3) = 0
[pid 6105] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6105] memfd_create("syzkaller", 0) = 3
[pid 6105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6105] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6105] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6105] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6105] close(3) = 0
[pid 6105] mkdir("./file0", 0777) = 0
[ 241.938465][ T6105] loop0: detected capacity change from 0 to 4096
[ 241.953711][ T6105] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 241.961796][ T6105] NILFS (loop0): trying rollback from an earlier position
[ 241.974756][ T6105] NILFS (loop0): recovery complete
[pid 6105] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6105] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6105] chdir("./file0") = 0
[pid 6105] ioctl(4, LOOP_CLR_FD) = 0
[pid 6105] close(4) = 0
[pid 6105] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6105] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 241.980768][ T6106] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6105] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6105] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6105] exit_group(0) = ?
[pid 6105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6105, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./515", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./515", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./515/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./515/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./515/binderfs") = 0
umount2("./515/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./515/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./515/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./515/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./515/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./515/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./515") = 0
mkdir("./516", 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=0x555555db65d0) = 6107
./strace-static-x86_64: Process 6107 attached
[pid 6107] chdir("./516") = 0
[pid 6107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6107] setpgid(0, 0) = 0
[pid 6107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6107] write(3, "1000", 4) = 4
[pid 6107] close(3) = 0
[pid 6107] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6107] memfd_create("syzkaller", 0) = 3
[pid 6107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6107] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6107] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6107] close(3) = 0
[pid 6107] mkdir("./file0", 0777) = 0
[pid 6107] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6107] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6107] chdir("./file0") = 0
[pid 6107] ioctl(4, LOOP_CLR_FD) = 0
[pid 6107] close(4) = 0
[ 242.249981][ T6107] loop0: detected capacity change from 0 to 4096
[ 242.266283][ T6107] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 242.274361][ T6107] NILFS (loop0): trying rollback from an earlier position
[ 242.287831][ T6107] NILFS (loop0): recovery complete
[pid 6107] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6107] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 242.294193][ T6108] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6107] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6107] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6107] exit_group(0) = ?
[pid 6107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6107, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./516", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./516", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./516/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./516/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./516/binderfs") = 0
umount2("./516/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./516/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./516/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./516/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./516/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./516/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./516") = 0
mkdir("./517", 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=0x555555db65d0) = 6109
./strace-static-x86_64: Process 6109 attached
[pid 6109] chdir("./517") = 0
[pid 6109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6109] setpgid(0, 0) = 0
[pid 6109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6109] write(3, "1000", 4) = 4
[pid 6109] close(3) = 0
[pid 6109] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6109] memfd_create("syzkaller", 0) = 3
[pid 6109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6109] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6109] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6109] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6109] close(3) = 0
[pid 6109] mkdir("./file0", 0777) = 0
[pid 6109] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6109] chdir("./file0") = 0
[pid 6109] ioctl(4, LOOP_CLR_FD) = 0
[ 242.570027][ T6109] loop0: detected capacity change from 0 to 4096
[ 242.585321][ T6109] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 242.593407][ T6109] NILFS (loop0): trying rollback from an earlier position
[ 242.607348][ T6109] NILFS (loop0): recovery complete
[pid 6109] close(4) = 0
[pid 6109] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6109] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 242.613169][ T6110] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6109] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6109] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6109] exit_group(0) = ?
[pid 6109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6109, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./517", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./517", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./517/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./517/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./517/binderfs") = 0
umount2("./517/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./517/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./517/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./517/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./517/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./517/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./517") = 0
mkdir("./518", 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=0x555555db65d0) = 6111
./strace-static-x86_64: Process 6111 attached
[pid 6111] chdir("./518") = 0
[pid 6111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6111] setpgid(0, 0) = 0
[pid 6111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6111] write(3, "1000", 4) = 4
[pid 6111] close(3) = 0
[pid 6111] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6111] memfd_create("syzkaller", 0) = 3
[pid 6111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6111] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6111] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6111] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6111] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6111] close(3) = 0
[pid 6111] mkdir("./file0", 0777) = 0
[pid 6111] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6111] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6111] chdir("./file0") = 0
[pid 6111] ioctl(4, LOOP_CLR_FD) = 0
[ 242.892669][ T6111] loop0: detected capacity change from 0 to 4096
[ 242.907877][ T6111] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 242.915872][ T6111] NILFS (loop0): trying rollback from an earlier position
[ 242.929883][ T6111] NILFS (loop0): recovery complete
[pid 6111] close(4) = 0
[pid 6111] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6111] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 242.936034][ T6112] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 242.949691][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 242.949702][ T27] audit: type=1800 audit(1676306930.708:520): pid=6111 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6111] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6111] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6111] exit_group(0) = ?
[pid 6111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6111, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./518", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./518", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./518/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./518/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./518/binderfs") = 0
umount2("./518/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./518/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./518/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./518/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./518/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./518/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./518") = 0
mkdir("./519", 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=0x555555db65d0) = 6113
./strace-static-x86_64: Process 6113 attached
[pid 6113] chdir("./519") = 0
[pid 6113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6113] setpgid(0, 0) = 0
[pid 6113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6113] write(3, "1000", 4) = 4
[pid 6113] close(3) = 0
[pid 6113] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6113] memfd_create("syzkaller", 0) = 3
[pid 6113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6113] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6113] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6113] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6113] close(3) = 0
[pid 6113] mkdir("./file0", 0777) = 0
[ 243.215195][ T6113] loop0: detected capacity change from 0 to 4096
[ 243.240411][ T6113] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 243.248480][ T6113] NILFS (loop0): trying rollback from an earlier position
[pid 6113] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6113] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6113] chdir("./file0") = 0
[pid 6113] ioctl(4, LOOP_CLR_FD) = 0
[pid 6113] close(4) = 0
[pid 6113] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6113] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 243.262560][ T6113] NILFS (loop0): recovery complete
[ 243.268580][ T6114] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 243.286204][ T27] audit: type=1800 audit(1676306931.038:521): pid=6113 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6113] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6113] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6113] exit_group(0) = ?
[pid 6113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6113, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./519", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./519", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./519/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./519/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./519/binderfs") = 0
umount2("./519/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./519/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./519/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./519/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./519/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./519/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./519") = 0
mkdir("./520", 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=0x555555db65d0) = 6115
./strace-static-x86_64: Process 6115 attached
[pid 6115] chdir("./520") = 0
[pid 6115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6115] setpgid(0, 0) = 0
[pid 6115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6115] write(3, "1000", 4) = 4
[pid 6115] close(3) = 0
[pid 6115] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6115] memfd_create("syzkaller", 0) = 3
[pid 6115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6115] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6115] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6115] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6115] close(3) = 0
[pid 6115] mkdir("./file0", 0777) = 0
[pid 6115] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6115] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6115] chdir("./file0") = 0
[ 243.550006][ T6115] loop0: detected capacity change from 0 to 4096
[ 243.564848][ T6115] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 243.573129][ T6115] NILFS (loop0): trying rollback from an earlier position
[ 243.587139][ T6115] NILFS (loop0): recovery complete
[pid 6115] ioctl(4, LOOP_CLR_FD) = 0
[pid 6115] close(4) = 0
[pid 6115] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6115] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 243.593178][ T6116] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 243.606190][ T27] audit: type=1800 audit(1676306931.368:522): pid=6115 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6115] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6115] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6115] exit_group(0) = ?
[pid 6115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6115, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./520", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./520", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./520/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./520/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./520/binderfs") = 0
umount2("./520/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./520/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./520/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./520/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./520/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./520/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./520") = 0
mkdir("./521", 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=0x555555db65d0) = 6117
./strace-static-x86_64: Process 6117 attached
[pid 6117] chdir("./521") = 0
[pid 6117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6117] setpgid(0, 0) = 0
[pid 6117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6117] write(3, "1000", 4) = 4
[pid 6117] close(3) = 0
[pid 6117] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6117] memfd_create("syzkaller", 0) = 3
[pid 6117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6117] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6117] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6117] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6117] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6117] close(3) = 0
[pid 6117] mkdir("./file0", 0777) = 0
[ 243.890423][ T6117] loop0: detected capacity change from 0 to 4096
[ 243.908059][ T6117] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 243.916223][ T6117] NILFS (loop0): trying rollback from an earlier position
[ 243.930399][ T6117] NILFS (loop0): recovery complete
[pid 6117] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6117] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6117] chdir("./file0") = 0
[pid 6117] ioctl(4, LOOP_CLR_FD) = 0
[pid 6117] close(4) = 0
[pid 6117] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6117] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 243.936523][ T6118] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 243.949899][ T27] audit: type=1800 audit(1676306931.708:523): pid=6117 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6117] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6117] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6117] exit_group(0) = ?
[pid 6117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6117, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./521", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./521", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./521/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./521/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./521/binderfs") = 0
umount2("./521/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./521/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./521/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./521/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./521/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./521/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./521") = 0
mkdir("./522", 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=0x555555db65d0) = 6119
./strace-static-x86_64: Process 6119 attached
[pid 6119] chdir("./522") = 0
[pid 6119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6119] setpgid(0, 0) = 0
[pid 6119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6119] write(3, "1000", 4) = 4
[pid 6119] close(3) = 0
[pid 6119] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6119] memfd_create("syzkaller", 0) = 3
[pid 6119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6119] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6119] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6119] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6119] close(3) = 0
[pid 6119] mkdir("./file0", 0777) = 0
[pid 6119] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6119] chdir("./file0") = 0
[pid 6119] ioctl(4, LOOP_CLR_FD) = 0
[ 244.218502][ T6119] loop0: detected capacity change from 0 to 4096
[ 244.234470][ T6119] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 244.242624][ T6119] NILFS (loop0): trying rollback from an earlier position
[ 244.256716][ T6119] NILFS (loop0): recovery complete
[pid 6119] close(4) = 0
[pid 6119] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6119] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 244.262475][ T6120] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 244.275799][ T27] audit: type=1800 audit(1676306932.038:524): pid=6119 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6119] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6119] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6119] exit_group(0) = ?
[pid 6119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6119, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./522", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./522", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./522/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./522/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./522/binderfs") = 0
umount2("./522/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./522/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./522/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./522/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./522/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./522/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./522") = 0
mkdir("./523", 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=0x555555db65d0) = 6121
./strace-static-x86_64: Process 6121 attached
[pid 6121] chdir("./523") = 0
[pid 6121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6121] setpgid(0, 0) = 0
[pid 6121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6121] write(3, "1000", 4) = 4
[pid 6121] close(3) = 0
[pid 6121] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6121] memfd_create("syzkaller", 0) = 3
[pid 6121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6121] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6121] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6121] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6121] close(3) = 0
[pid 6121] mkdir("./file0", 0777) = 0
[ 244.548874][ T6121] loop0: detected capacity change from 0 to 4096
[ 244.564775][ T6121] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 244.572831][ T6121] NILFS (loop0): trying rollback from an earlier position
[ 244.586904][ T6121] NILFS (loop0): recovery complete
[pid 6121] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6121] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6121] chdir("./file0") = 0
[pid 6121] ioctl(4, LOOP_CLR_FD) = 0
[pid 6121] close(4) = 0
[pid 6121] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6121] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 244.593037][ T6122] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 244.605857][ T27] audit: type=1800 audit(1676306932.368:525): pid=6121 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6121] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6121] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6121] exit_group(0) = ?
[pid 6121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6121, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./523", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./523", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./523/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./523/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./523/binderfs") = 0
umount2("./523/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./523/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./523/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./523/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./523/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./523/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./523") = 0
mkdir("./524", 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=0x555555db65d0) = 6123
./strace-static-x86_64: Process 6123 attached
[pid 6123] chdir("./524") = 0
[pid 6123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6123] setpgid(0, 0) = 0
[pid 6123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6123] write(3, "1000", 4) = 4
[pid 6123] close(3) = 0
[pid 6123] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6123] memfd_create("syzkaller", 0) = 3
[pid 6123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6123] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6123] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6123] close(3) = 0
[pid 6123] mkdir("./file0", 0777) = 0
[ 244.875619][ T6123] loop0: detected capacity change from 0 to 4096
[ 244.889958][ T6123] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 244.898011][ T6123] NILFS (loop0): trying rollback from an earlier position
[ 244.910598][ T6123] NILFS (loop0): recovery complete
[pid 6123] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6123] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6123] chdir("./file0") = 0
[pid 6123] ioctl(4, LOOP_CLR_FD) = 0
[pid 6123] close(4) = 0
[pid 6123] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6123] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 244.916621][ T6124] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 244.936169][ T27] audit: type=1800 audit(1676306932.678:526): pid=6123 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6123] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6123] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6123] exit_group(0) = ?
[pid 6123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6123, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./524", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./524", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./524/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./524/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./524/binderfs") = 0
umount2("./524/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./524/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./524/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./524/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./524/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./524/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./524") = 0
mkdir("./525", 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=0x555555db65d0) = 6125
./strace-static-x86_64: Process 6125 attached
[pid 6125] chdir("./525") = 0
[pid 6125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6125] setpgid(0, 0) = 0
[pid 6125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6125] write(3, "1000", 4) = 4
[pid 6125] close(3) = 0
[pid 6125] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6125] memfd_create("syzkaller", 0) = 3
[pid 6125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6125] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6125] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6125] close(3) = 0
[pid 6125] mkdir("./file0", 0777) = 0
[pid 6125] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6125] chdir("./file0") = 0
[ 245.188292][ T6125] loop0: detected capacity change from 0 to 4096
[ 245.204557][ T6125] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 245.212628][ T6125] NILFS (loop0): trying rollback from an earlier position
[ 245.226689][ T6125] NILFS (loop0): recovery complete
[pid 6125] ioctl(4, LOOP_CLR_FD) = 0
[pid 6125] close(4) = 0
[pid 6125] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6125] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 245.232539][ T6126] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 245.247133][ T27] audit: type=1800 audit(1676306933.008:527): pid=6125 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6125] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6125] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6125] exit_group(0) = ?
[pid 6125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6125, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./525", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./525", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./525/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./525/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./525/binderfs") = 0
umount2("./525/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./525/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./525/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./525/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./525/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./525/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./525") = 0
mkdir("./526", 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=0x555555db65d0) = 6127
./strace-static-x86_64: Process 6127 attached
[pid 6127] chdir("./526") = 0
[pid 6127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6127] setpgid(0, 0) = 0
[pid 6127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6127] write(3, "1000", 4) = 4
[pid 6127] close(3) = 0
[pid 6127] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6127] memfd_create("syzkaller", 0) = 3
[pid 6127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6127] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6127] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6127] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6127] close(3) = 0
[pid 6127] mkdir("./file0", 0777) = 0
[ 245.524865][ T6127] loop0: detected capacity change from 0 to 4096
[ 245.540085][ T6127] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 245.548160][ T6127] NILFS (loop0): trying rollback from an earlier position
[ 245.562081][ T6127] NILFS (loop0): recovery complete
[pid 6127] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6127] chdir("./file0") = 0
[pid 6127] ioctl(4, LOOP_CLR_FD) = 0
[pid 6127] close(4) = 0
[pid 6127] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6127] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 245.568154][ T6128] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 245.586152][ T27] audit: type=1800 audit(1676306933.328:528): pid=6127 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6127] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6127] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6127] exit_group(0) = ?
[pid 6127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6127, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./526", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./526", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./526/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./526/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./526/binderfs") = 0
umount2("./526/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./526/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./526/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./526/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./526/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./526/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./526") = 0
mkdir("./527", 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=0x555555db65d0) = 6129
./strace-static-x86_64: Process 6129 attached
[pid 6129] chdir("./527") = 0
[pid 6129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6129] setpgid(0, 0) = 0
[pid 6129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6129] write(3, "1000", 4) = 4
[pid 6129] close(3) = 0
[pid 6129] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6129] memfd_create("syzkaller", 0) = 3
[pid 6129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6129] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6129] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6129] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6129] close(3) = 0
[pid 6129] mkdir("./file0", 0777) = 0
[ 245.838440][ T6129] loop0: detected capacity change from 0 to 4096
[ 245.853004][ T6129] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 245.861384][ T6129] NILFS (loop0): trying rollback from an earlier position
[ 245.875323][ T6129] NILFS (loop0): recovery complete
[pid 6129] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6129] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6129] chdir("./file0") = 0
[pid 6129] ioctl(4, LOOP_CLR_FD) = 0
[pid 6129] close(4) = 0
[pid 6129] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6129] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 245.881716][ T6130] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 245.895801][ T27] audit: type=1800 audit(1676306933.658:529): pid=6129 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6129] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6129] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6129] exit_group(0) = ?
[pid 6129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6129, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./527", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./527", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./527/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./527/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./527/binderfs") = 0
umount2("./527/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./527/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./527/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./527/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./527/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./527/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./527") = 0
mkdir("./528", 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=0x555555db65d0) = 6131
./strace-static-x86_64: Process 6131 attached
[pid 6131] chdir("./528") = 0
[pid 6131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6131] setpgid(0, 0) = 0
[pid 6131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6131] write(3, "1000", 4) = 4
[pid 6131] close(3) = 0
[pid 6131] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6131] memfd_create("syzkaller", 0) = 3
[pid 6131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6131] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6131] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6131] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6131] close(3) = 0
[pid 6131] mkdir("./file0", 0777) = 0
[ 246.200376][ T6131] loop0: detected capacity change from 0 to 4096
[ 246.217372][ T6131] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 246.225424][ T6131] NILFS (loop0): trying rollback from an earlier position
[ 246.240224][ T6131] NILFS (loop0): recovery complete
[pid 6131] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6131] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6131] chdir("./file0") = 0
[pid 6131] ioctl(4, LOOP_CLR_FD) = 0
[pid 6131] close(4) = 0
[pid 6131] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6131] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 246.246401][ T6132] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6131] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6131] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6131] exit_group(0) = ?
[pid 6131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6131, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./528", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./528", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./528/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./528/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./528/binderfs") = 0
umount2("./528/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./528/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./528/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./528/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./528/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./528/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./528") = 0
mkdir("./529", 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=0x555555db65d0) = 6133
./strace-static-x86_64: Process 6133 attached
[pid 6133] chdir("./529") = 0
[pid 6133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6133] setpgid(0, 0) = 0
[pid 6133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6133] write(3, "1000", 4) = 4
[pid 6133] close(3) = 0
[pid 6133] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6133] memfd_create("syzkaller", 0) = 3
[pid 6133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6133] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6133] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6133] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6133] close(3) = 0
[pid 6133] mkdir("./file0", 0777) = 0
[ 246.525000][ T6133] loop0: detected capacity change from 0 to 4096
[ 246.540433][ T6133] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 246.548515][ T6133] NILFS (loop0): trying rollback from an earlier position
[ 246.562324][ T6133] NILFS (loop0): recovery complete
[pid 6133] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6133] chdir("./file0") = 0
[pid 6133] ioctl(4, LOOP_CLR_FD) = 0
[pid 6133] close(4) = 0
[pid 6133] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6133] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 246.568510][ T6134] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6133] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6133] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6133] exit_group(0) = ?
[pid 6133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6133, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./529", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./529", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./529/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./529/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./529/binderfs") = 0
umount2("./529/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./529/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./529/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./529/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./529/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./529/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./529") = 0
mkdir("./530", 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=0x555555db65d0) = 6135
./strace-static-x86_64: Process 6135 attached
[pid 6135] chdir("./530") = 0
[pid 6135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6135] setpgid(0, 0) = 0
[pid 6135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6135] write(3, "1000", 4) = 4
[pid 6135] close(3) = 0
[pid 6135] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6135] memfd_create("syzkaller", 0) = 3
[pid 6135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6135] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6135] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6135] close(3) = 0
[pid 6135] mkdir("./file0", 0777) = 0
[ 246.854783][ T6135] loop0: detected capacity change from 0 to 4096
[ 246.870661][ T6135] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 246.878711][ T6135] NILFS (loop0): trying rollback from an earlier position
[ 246.892444][ T6135] NILFS (loop0): recovery complete
[pid 6135] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6135] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6135] chdir("./file0") = 0
[pid 6135] ioctl(4, LOOP_CLR_FD) = 0
[pid 6135] close(4) = 0
[pid 6135] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6135] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 246.898699][ T6136] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6135] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6135] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6135] exit_group(0) = ?
[pid 6135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6135, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./530", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./530", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./530/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./530/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./530/binderfs") = 0
umount2("./530/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./530/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./530/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./530/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./530/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./530/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./530") = 0
mkdir("./531", 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=0x555555db65d0) = 6137
./strace-static-x86_64: Process 6137 attached
[pid 6137] chdir("./531") = 0
[pid 6137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6137] setpgid(0, 0) = 0
[pid 6137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6137] write(3, "1000", 4) = 4
[pid 6137] close(3) = 0
[pid 6137] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6137] memfd_create("syzkaller", 0) = 3
[pid 6137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6137] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6137] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6137] close(3) = 0
[pid 6137] mkdir("./file0", 0777) = 0
[pid 6137] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6137] chdir("./file0") = 0
[ 247.187054][ T6137] loop0: detected capacity change from 0 to 4096
[ 247.203310][ T6137] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 247.211412][ T6137] NILFS (loop0): trying rollback from an earlier position
[ 247.228070][ T6137] NILFS (loop0): recovery complete
[pid 6137] ioctl(4, LOOP_CLR_FD) = 0
[pid 6137] close(4) = 0
[pid 6137] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6137] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 247.234373][ T6138] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6137] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6137] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6137] exit_group(0) = ?
[pid 6137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6137, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./531", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./531", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./531/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./531/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./531/binderfs") = 0
umount2("./531/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./531/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./531/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./531/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./531/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./531/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./531") = 0
mkdir("./532", 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=0x555555db65d0) = 6139
./strace-static-x86_64: Process 6139 attached
[pid 6139] chdir("./532") = 0
[pid 6139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6139] setpgid(0, 0) = 0
[pid 6139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6139] write(3, "1000", 4) = 4
[pid 6139] close(3) = 0
[pid 6139] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6139] memfd_create("syzkaller", 0) = 3
[pid 6139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6139] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6139] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6139] close(3) = 0
[pid 6139] mkdir("./file0", 0777) = 0
[pid 6139] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6139] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 247.508805][ T6139] loop0: detected capacity change from 0 to 4096
[ 247.525264][ T6139] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 247.533453][ T6139] NILFS (loop0): trying rollback from an earlier position
[ 247.547656][ T6139] NILFS (loop0): recovery complete
[pid 6139] chdir("./file0") = 0
[pid 6139] ioctl(4, LOOP_CLR_FD) = 0
[pid 6139] close(4) = 0
[pid 6139] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6139] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 247.553566][ T6140] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6139] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6139] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6139] exit_group(0) = ?
[pid 6139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6139, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./532", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./532", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./532/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./532/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./532/binderfs") = 0
umount2("./532/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./532/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./532/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./532/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./532/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./532/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./532") = 0
mkdir("./533", 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=0x555555db65d0) = 6141
./strace-static-x86_64: Process 6141 attached
[pid 6141] chdir("./533") = 0
[pid 6141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6141] setpgid(0, 0) = 0
[pid 6141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6141] write(3, "1000", 4) = 4
[pid 6141] close(3) = 0
[pid 6141] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6141] memfd_create("syzkaller", 0) = 3
[pid 6141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6141] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6141] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6141] close(3) = 0
[pid 6141] mkdir("./file0", 0777) = 0
[pid 6141] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 247.856601][ T6141] loop0: detected capacity change from 0 to 4096
[ 247.874351][ T6141] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 247.882450][ T6141] NILFS (loop0): trying rollback from an earlier position
[ 247.898294][ T6141] NILFS (loop0): recovery complete
[pid 6141] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6141] chdir("./file0") = 0
[pid 6141] ioctl(4, LOOP_CLR_FD) = 0
[pid 6141] close(4) = 0
[pid 6141] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6141] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 247.904264][ T6142] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6141] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6141] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6141] exit_group(0) = ?
[pid 6141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6141, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./533", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./533", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./533/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./533/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./533/binderfs") = 0
umount2("./533/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./533/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./533/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./533/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./533/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./533/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./533") = 0
mkdir("./534", 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=0x555555db65d0) = 6143
./strace-static-x86_64: Process 6143 attached
[pid 6143] chdir("./534") = 0
[pid 6143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6143] setpgid(0, 0) = 0
[pid 6143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6143] write(3, "1000", 4) = 4
[pid 6143] close(3) = 0
[pid 6143] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6143] memfd_create("syzkaller", 0) = 3
[pid 6143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6143] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6143] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6143] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6143] close(3) = 0
[pid 6143] mkdir("./file0", 0777) = 0
[pid 6143] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6143] chdir("./file0") = 0
[ 248.200958][ T6143] loop0: detected capacity change from 0 to 4096
[ 248.218523][ T6143] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 248.226834][ T6143] NILFS (loop0): trying rollback from an earlier position
[ 248.243113][ T6143] NILFS (loop0): recovery complete
[pid 6143] ioctl(4, LOOP_CLR_FD) = 0
[pid 6143] close(4) = 0
[pid 6143] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6143] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 248.251408][ T6144] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 248.254456][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 248.254468][ T27] audit: type=1800 audit(1676306936.008:536): pid=6143 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6143] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6143] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6143] exit_group(0) = ?
[pid 6143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6143, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./534", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./534", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./534/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./534/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./534/binderfs") = 0
umount2("./534/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./534/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./534/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./534/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./534/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./534/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./534") = 0
mkdir("./535", 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=0x555555db65d0) = 6145
./strace-static-x86_64: Process 6145 attached
[pid 6145] chdir("./535") = 0
[pid 6145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6145] setpgid(0, 0) = 0
[pid 6145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6145] write(3, "1000", 4) = 4
[pid 6145] close(3) = 0
[pid 6145] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6145] memfd_create("syzkaller", 0) = 3
[pid 6145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6145] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6145] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6145] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6145] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6145] close(3) = 0
[pid 6145] mkdir("./file0", 0777) = 0
[pid 6145] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6145] chdir("./file0") = 0
[pid 6145] ioctl(4, LOOP_CLR_FD) = 0
[ 248.537478][ T6145] loop0: detected capacity change from 0 to 4096
[ 248.552999][ T6145] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 248.561051][ T6145] NILFS (loop0): trying rollback from an earlier position
[ 248.575020][ T6145] NILFS (loop0): recovery complete
[pid 6145] close(4) = 0
[pid 6145] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6145] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 248.580930][ T6146] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 248.594031][ T27] audit: type=1800 audit(1676306936.358:537): pid=6145 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6145] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6145] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6145] exit_group(0) = ?
[pid 6145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6145, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./535", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./535", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./535/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./535/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./535/binderfs") = 0
umount2("./535/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./535/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./535/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./535/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./535/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./535/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./535") = 0
mkdir("./536", 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=0x555555db65d0) = 6147
./strace-static-x86_64: Process 6147 attached
[pid 6147] chdir("./536") = 0
[pid 6147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6147] setpgid(0, 0) = 0
[pid 6147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6147] write(3, "1000", 4) = 4
[pid 6147] close(3) = 0
[pid 6147] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6147] memfd_create("syzkaller", 0) = 3
[pid 6147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6147] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6147] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6147] close(3) = 0
[pid 6147] mkdir("./file0", 0777) = 0
[pid 6147] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6147] chdir("./file0") = 0
[pid 6147] ioctl(4, LOOP_CLR_FD) = 0
[pid 6147] close(4) = 0
[ 248.881881][ T6147] loop0: detected capacity change from 0 to 4096
[ 248.898064][ T6147] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 248.906071][ T6147] NILFS (loop0): trying rollback from an earlier position
[ 248.920211][ T6147] NILFS (loop0): recovery complete
[pid 6147] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6147] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 248.926688][ T6148] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 248.946206][ T27] audit: type=1800 audit(1676306936.688:538): pid=6147 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6147] sendfile(4, 5, NULL, 2147538701) = 65536
[pid 6147] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6147] exit_group(0) = ?
[pid 6147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6147, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./536", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./536", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./536/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./536/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./536/binderfs") = 0
umount2("./536/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./536/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./536/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./536/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./536/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./536/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./536") = 0
mkdir("./537", 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=0x555555db65d0) = 6149
./strace-static-x86_64: Process 6149 attached
[pid 6149] chdir("./537") = 0
[ 248.976403][ T6148] NILFS (loop0): nilfs_direct_assign (ino=6): invalid key: 130
[ 248.984078][ T6148] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=6)
[ 248.993724][ T6148] Remounting filesystem read-only
[pid 6149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6149] setpgid(0, 0) = 0
[pid 6149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6149] write(3, "1000", 4) = 4
[pid 6149] close(3) = 0
[pid 6149] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6149] memfd_create("syzkaller", 0) = 3
[pid 6149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6149] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6149] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6149] close(3) = 0
[pid 6149] mkdir("./file0", 0777) = 0
[pid 6149] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6149] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6149] chdir("./file0") = 0
[pid 6149] ioctl(4, LOOP_CLR_FD) = 0
[ 249.078108][ T6149] loop0: detected capacity change from 0 to 4096
[ 249.092922][ T6149] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 249.101041][ T6149] NILFS (loop0): trying rollback from an earlier position
[ 249.113613][ T6149] NILFS (loop0): recovery complete
[pid 6149] close(4) = 0
[pid 6149] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6149] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 249.119420][ T6150] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 249.139705][ T27] audit: type=1800 audit(1676306936.898:539): pid=6149 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6149] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6149] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6149] exit_group(0) = ?
[pid 6149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6149, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./537", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./537", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./537/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./537/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./537/binderfs") = 0
umount2("./537/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./537/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./537/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./537/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./537/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./537/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./537") = 0
mkdir("./538", 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=0x555555db65d0) = 6151
./strace-static-x86_64: Process 6151 attached
[pid 6151] chdir("./538") = 0
[pid 6151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6151] setpgid(0, 0) = 0
[pid 6151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6151] write(3, "1000", 4) = 4
[pid 6151] close(3) = 0
[pid 6151] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6151] memfd_create("syzkaller", 0) = 3
[pid 6151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6151] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6151] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6151] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6151] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6151] close(3) = 0
[pid 6151] mkdir("./file0", 0777) = 0
[ 249.415754][ T6151] loop0: detected capacity change from 0 to 4096
[ 249.431652][ T6151] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 249.439709][ T6151] NILFS (loop0): trying rollback from an earlier position
[ 249.453706][ T6151] NILFS (loop0): recovery complete
[pid 6151] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6151] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6151] chdir("./file0") = 0
[pid 6151] ioctl(4, LOOP_CLR_FD) = 0
[pid 6151] close(4) = 0
[pid 6151] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6151] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 249.459580][ T6152] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 249.476262][ T27] audit: type=1800 audit(1676306937.228:540): pid=6151 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6151] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6151] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6151] exit_group(0) = ?
[pid 6151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6151, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./538", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./538", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./538/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./538/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./538/binderfs") = 0
umount2("./538/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./538/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./538/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./538/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./538/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./538/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./538") = 0
mkdir("./539", 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=0x555555db65d0) = 6153
./strace-static-x86_64: Process 6153 attached
[pid 6153] chdir("./539") = 0
[pid 6153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6153] setpgid(0, 0) = 0
[pid 6153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6153] write(3, "1000", 4) = 4
[pid 6153] close(3) = 0
[pid 6153] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6153] memfd_create("syzkaller", 0) = 3
[pid 6153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6153] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6153] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6153] close(3) = 0
[pid 6153] mkdir("./file0", 0777) = 0
[pid 6153] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6153] chdir("./file0") = 0
[pid 6153] ioctl(4, LOOP_CLR_FD) = 0
[pid 6153] close(4) = 0
[pid 6153] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[ 249.757206][ T6153] loop0: detected capacity change from 0 to 4096
[ 249.772117][ T6153] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 249.780195][ T6153] NILFS (loop0): trying rollback from an earlier position
[ 249.794071][ T6153] NILFS (loop0): recovery complete
[pid 6153] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 249.800081][ T6154] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 249.816261][ T27] audit: type=1800 audit(1676306937.568:541): pid=6153 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6153] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6153] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6153] exit_group(0) = ?
[pid 6153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6153, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
umount2("./539", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./539", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./539/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./539/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./539/binderfs") = 0
umount2("./539/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./539/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./539/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./539/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./539/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./539/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./539") = 0
mkdir("./540", 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=0x555555db65d0) = 6155
./strace-static-x86_64: Process 6155 attached
[pid 6155] chdir("./540") = 0
[pid 6155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6155] setpgid(0, 0) = 0
[pid 6155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6155] write(3, "1000", 4) = 4
[pid 6155] close(3) = 0
[pid 6155] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6155] memfd_create("syzkaller", 0) = 3
[pid 6155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6155] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6155] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6155] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6155] close(3) = 0
[pid 6155] mkdir("./file0", 0777) = 0
[pid 6155] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6155] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 250.097328][ T6155] loop0: detected capacity change from 0 to 4096
[ 250.115602][ T6155] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 250.123951][ T6155] NILFS (loop0): trying rollback from an earlier position
[ 250.138432][ T6155] NILFS (loop0): recovery complete
[pid 6155] chdir("./file0") = 0
[pid 6155] ioctl(4, LOOP_CLR_FD) = 0
[pid 6155] close(4) = 0
[pid 6155] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6155] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 250.144774][ T6156] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 250.167905][ T27] audit: type=1800 audit(1676306937.898:542): pid=6155 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6155] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6155] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6155] exit_group(0) = ?
[pid 6155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6155, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./540", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./540", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./540/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./540/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./540/binderfs") = 0
umount2("./540/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./540/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./540/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./540/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./540/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./540/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./540") = 0
mkdir("./541", 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=0x555555db65d0) = 6157
./strace-static-x86_64: Process 6157 attached
[pid 6157] chdir("./541") = 0
[pid 6157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6157] setpgid(0, 0) = 0
[pid 6157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6157] write(3, "1000", 4) = 4
[pid 6157] close(3) = 0
[pid 6157] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6157] memfd_create("syzkaller", 0) = 3
[pid 6157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6157] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6157] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6157] close(3) = 0
[pid 6157] mkdir("./file0", 0777) = 0
[pid 6157] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 250.423886][ T6157] loop0: detected capacity change from 0 to 4096
[ 250.439916][ T6157] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 250.447968][ T6157] NILFS (loop0): trying rollback from an earlier position
[ 250.460402][ T6157] NILFS (loop0): recovery complete
[pid 6157] chdir("./file0") = 0
[pid 6157] ioctl(4, LOOP_CLR_FD) = 0
[pid 6157] close(4) = 0
[pid 6157] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6157] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 250.468466][ T6158] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 250.478324][ T27] audit: type=1800 audit(1676306938.228:543): pid=6157 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6157] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6157] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6157] exit_group(0) = ?
[pid 6157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6157, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./541", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./541", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./541/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./541/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./541/binderfs") = 0
umount2("./541/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./541/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./541/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./541/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./541/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./541/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./541") = 0
mkdir("./542", 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=0x555555db65d0) = 6159
./strace-static-x86_64: Process 6159 attached
[pid 6159] chdir("./542") = 0
[pid 6159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6159] setpgid(0, 0) = 0
[pid 6159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6159] write(3, "1000", 4) = 4
[pid 6159] close(3) = 0
[pid 6159] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6159] memfd_create("syzkaller", 0) = 3
[pid 6159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6159] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6159] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6159] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6159] close(3) = 0
[pid 6159] mkdir("./file0", 0777) = 0
[ 250.748772][ T6159] loop0: detected capacity change from 0 to 4096
[ 250.762573][ T6159] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 250.770639][ T6159] NILFS (loop0): trying rollback from an earlier position
[ 250.782957][ T6159] NILFS (loop0): recovery complete
[pid 6159] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6159] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6159] chdir("./file0") = 0
[pid 6159] ioctl(4, LOOP_CLR_FD) = 0
[pid 6159] close(4) = 0
[pid 6159] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6159] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 250.788995][ T6160] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 250.806173][ T27] audit: type=1800 audit(1676306938.558:544): pid=6159 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6159] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6159] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6159] exit_group(0) = ?
[pid 6159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6159, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./542", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./542", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./542/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./542/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./542/binderfs") = 0
umount2("./542/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./542/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./542/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./542/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./542/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./542/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./542") = 0
mkdir("./543", 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=0x555555db65d0) = 6161
./strace-static-x86_64: Process 6161 attached
[pid 6161] chdir("./543") = 0
[pid 6161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6161] setpgid(0, 0) = 0
[pid 6161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6161] write(3, "1000", 4) = 4
[pid 6161] close(3) = 0
[pid 6161] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6161] memfd_create("syzkaller", 0) = 3
[pid 6161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6161] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6161] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6161] close(3) = 0
[pid 6161] mkdir("./file0", 0777) = 0
[ 251.064951][ T6161] loop0: detected capacity change from 0 to 4096
[ 251.082465][ T6161] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 251.091012][ T6161] NILFS (loop0): trying rollback from an earlier position
[ 251.104725][ T6161] NILFS (loop0): recovery complete
[pid 6161] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6161] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6161] chdir("./file0") = 0
[pid 6161] ioctl(4, LOOP_CLR_FD) = 0
[pid 6161] close(4) = 0
[pid 6161] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6161] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 251.111040][ T6162] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 251.124157][ T27] audit: type=1800 audit(1676306938.878:545): pid=6161 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6161] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6161] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6161] exit_group(0) = ?
[pid 6161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6161, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./543", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./543", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./543/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./543/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./543/binderfs") = 0
umount2("./543/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./543/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./543/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./543/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./543/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./543/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./543") = 0
mkdir("./544", 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=0x555555db65d0) = 6163
./strace-static-x86_64: Process 6163 attached
[pid 6163] chdir("./544") = 0
[pid 6163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6163] setpgid(0, 0) = 0
[pid 6163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6163] write(3, "1000", 4) = 4
[pid 6163] close(3) = 0
[pid 6163] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6163] memfd_create("syzkaller", 0) = 3
[pid 6163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6163] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6163] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6163] close(3) = 0
[pid 6163] mkdir("./file0", 0777) = 0
[pid 6163] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 251.390315][ T6163] loop0: detected capacity change from 0 to 4096
[ 251.406958][ T6163] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 251.414990][ T6163] NILFS (loop0): trying rollback from an earlier position
[ 251.429148][ T6163] NILFS (loop0): recovery complete
[pid 6163] chdir("./file0") = 0
[pid 6163] ioctl(4, LOOP_CLR_FD) = 0
[pid 6163] close(4) = 0
[pid 6163] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6163] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 251.435284][ T6164] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6163] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6163] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6163] exit_group(0) = ?
[pid 6163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6163, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./544", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./544", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./544/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./544/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./544/binderfs") = 0
umount2("./544/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./544/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./544/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./544/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./544/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./544/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./544") = 0
mkdir("./545", 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=0x555555db65d0) = 6165
./strace-static-x86_64: Process 6165 attached
[pid 6165] chdir("./545") = 0
[pid 6165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6165] setpgid(0, 0) = 0
[pid 6165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6165] write(3, "1000", 4) = 4
[pid 6165] close(3) = 0
[pid 6165] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6165] memfd_create("syzkaller", 0) = 3
[pid 6165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6165] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6165] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6165] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6165] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6165] close(3) = 0
[pid 6165] mkdir("./file0", 0777) = 0
[pid 6165] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6165] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6165] chdir("./file0") = 0
[pid 6165] ioctl(4, LOOP_CLR_FD) = 0
[pid 6165] close(4) = 0
[pid 6165] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6165] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 251.720371][ T6165] loop0: detected capacity change from 0 to 4096
[ 251.735840][ T6165] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 251.743938][ T6165] NILFS (loop0): trying rollback from an earlier position
[ 251.757589][ T6165] NILFS (loop0): recovery complete
[ 251.763411][ T6166] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6165] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6165] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6165] exit_group(0) = ?
[pid 6165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6165, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./545", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./545", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./545/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./545/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./545/binderfs") = 0
umount2("./545/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./545/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./545/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./545/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./545/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./545/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./545") = 0
mkdir("./546", 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=0x555555db65d0) = 6167
./strace-static-x86_64: Process 6167 attached
[pid 6167] chdir("./546") = 0
[pid 6167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6167] setpgid(0, 0) = 0
[pid 6167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6167] write(3, "1000", 4) = 4
[pid 6167] close(3) = 0
[pid 6167] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6167] memfd_create("syzkaller", 0) = 3
[pid 6167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6167] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6167] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6167] close(3) = 0
[pid 6167] mkdir("./file0", 0777) = 0
[pid 6167] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6167] chdir("./file0") = 0
[ 252.042859][ T6167] loop0: detected capacity change from 0 to 4096
[ 252.058871][ T6167] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 252.066915][ T6167] NILFS (loop0): trying rollback from an earlier position
[ 252.080625][ T6167] NILFS (loop0): recovery complete
[pid 6167] ioctl(4, LOOP_CLR_FD) = 0
[pid 6167] close(4) = 0
[pid 6167] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6167] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 252.086799][ T6168] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6167] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6167] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6167] exit_group(0) = ?
[pid 6167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6167, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./546", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./546", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./546/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./546/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./546/binderfs") = 0
umount2("./546/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./546/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./546/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./546/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./546/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./546/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./546") = 0
mkdir("./547", 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=0x555555db65d0) = 6169
./strace-static-x86_64: Process 6169 attached
[pid 6169] chdir("./547") = 0
[pid 6169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6169] setpgid(0, 0) = 0
[pid 6169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6169] write(3, "1000", 4) = 4
[pid 6169] close(3) = 0
[pid 6169] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6169] memfd_create("syzkaller", 0) = 3
[pid 6169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6169] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6169] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6169] close(3) = 0
[pid 6169] mkdir("./file0", 0777) = 0
[pid 6169] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 252.371414][ T6169] loop0: detected capacity change from 0 to 4096
[ 252.389605][ T6169] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 252.397709][ T6169] NILFS (loop0): trying rollback from an earlier position
[ 252.412058][ T6169] NILFS (loop0): recovery complete
[pid 6169] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6169] chdir("./file0") = 0
[pid 6169] ioctl(4, LOOP_CLR_FD) = 0
[pid 6169] close(4) = 0
[pid 6169] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6169] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 252.418199][ T6170] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6169] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6169] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6169] exit_group(0) = ?
[pid 6169] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6169, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./547", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./547", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./547/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./547/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./547/binderfs") = 0
umount2("./547/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./547/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./547/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./547/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./547/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./547/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./547") = 0
mkdir("./548", 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=0x555555db65d0) = 6171
./strace-static-x86_64: Process 6171 attached
[pid 6171] chdir("./548") = 0
[pid 6171] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6171] setpgid(0, 0) = 0
[pid 6171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6171] write(3, "1000", 4) = 4
[pid 6171] close(3) = 0
[pid 6171] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6171] memfd_create("syzkaller", 0) = 3
[pid 6171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6171] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6171] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6171] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6171] close(3) = 0
[pid 6171] mkdir("./file0", 0777) = 0
[ 252.692667][ T6171] loop0: detected capacity change from 0 to 4096
[ 252.709086][ T6171] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 252.717169][ T6171] NILFS (loop0): trying rollback from an earlier position
[ 252.731291][ T6171] NILFS (loop0): recovery complete
[pid 6171] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6171] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6171] chdir("./file0") = 0
[pid 6171] ioctl(4, LOOP_CLR_FD) = 0
[pid 6171] close(4) = 0
[pid 6171] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6171] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 252.737462][ T6172] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6171] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6171] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6171] exit_group(0) = ?
[pid 6171] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6171, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./548", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./548", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./548/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./548/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./548/binderfs") = 0
umount2("./548/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./548/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./548/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./548/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./548/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./548/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./548") = 0
mkdir("./549", 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=0x555555db65d0) = 6173
./strace-static-x86_64: Process 6173 attached
[pid 6173] chdir("./549") = 0
[pid 6173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6173] setpgid(0, 0) = 0
[pid 6173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6173] write(3, "1000", 4) = 4
[pid 6173] close(3) = 0
[pid 6173] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6173] memfd_create("syzkaller", 0) = 3
[pid 6173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6173] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6173] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6173] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6173] close(3) = 0
[pid 6173] mkdir("./file0", 0777) = 0
[ 253.014746][ T6173] loop0: detected capacity change from 0 to 4096
[ 253.031985][ T6173] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 253.040073][ T6173] NILFS (loop0): trying rollback from an earlier position
[ 253.053742][ T6173] NILFS (loop0): recovery complete
[pid 6173] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6173] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6173] chdir("./file0") = 0
[pid 6173] ioctl(4, LOOP_CLR_FD) = 0
[pid 6173] close(4) = 0
[pid 6173] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6173] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 253.059629][ T6174] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6173] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6173] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6173] exit_group(0) = ?
[pid 6173] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6173, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./549", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./549", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./549/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./549/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./549/binderfs") = 0
umount2("./549/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./549/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./549/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./549/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./549/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./549/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./549") = 0
mkdir("./550", 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=0x555555db65d0) = 6175
./strace-static-x86_64: Process 6175 attached
[pid 6175] chdir("./550") = 0
[pid 6175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6175] setpgid(0, 0) = 0
[pid 6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6175] write(3, "1000", 4) = 4
[pid 6175] close(3) = 0
[pid 6175] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6175] memfd_create("syzkaller", 0) = 3
[pid 6175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6175] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6175] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6175] close(3) = 0
[pid 6175] mkdir("./file0", 0777) = 0
[ 253.321825][ T6175] loop0: detected capacity change from 0 to 4096
[ 253.339030][ T6175] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 253.347101][ T6175] NILFS (loop0): trying rollback from an earlier position
[ 253.360573][ T6175] NILFS (loop0): recovery complete
[pid 6175] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6175] chdir("./file0") = 0
[pid 6175] ioctl(4, LOOP_CLR_FD) = 0
[pid 6175] close(4) = 0
[pid 6175] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6175] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 253.366708][ T6176] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 253.380014][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 253.380026][ T27] audit: type=1800 audit(1676306941.138:552): pid=6175 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6175] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6175] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6175] exit_group(0) = ?
[pid 6175] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6175, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./550", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./550", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./550/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./550/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./550/binderfs") = 0
umount2("./550/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./550/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./550/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./550/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./550/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./550/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./550") = 0
mkdir("./551", 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=0x555555db65d0) = 6177
./strace-static-x86_64: Process 6177 attached
[pid 6177] chdir("./551") = 0
[pid 6177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6177] setpgid(0, 0) = 0
[pid 6177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6177] write(3, "1000", 4) = 4
[pid 6177] close(3) = 0
[pid 6177] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6177] memfd_create("syzkaller", 0) = 3
[pid 6177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6177] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6177] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6177] close(3) = 0
[pid 6177] mkdir("./file0", 0777) = 0
[ 253.659138][ T6177] loop0: detected capacity change from 0 to 4096
[ 253.675169][ T6177] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 253.683235][ T6177] NILFS (loop0): trying rollback from an earlier position
[ 253.699367][ T6177] NILFS (loop0): recovery complete
[pid 6177] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6177] chdir("./file0") = 0
[pid 6177] ioctl(4, LOOP_CLR_FD) = 0
[pid 6177] close(4) = 0
[pid 6177] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6177] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 253.705371][ T6178] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 253.717881][ T27] audit: type=1800 audit(1676306941.478:553): pid=6177 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6177] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6177] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6177] exit_group(0) = ?
[pid 6177] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6177, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./551", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./551", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./551/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./551/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./551/binderfs") = 0
umount2("./551/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./551/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./551/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./551/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./551/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./551/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./551") = 0
mkdir("./552", 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=0x555555db65d0) = 6179
./strace-static-x86_64: Process 6179 attached
[pid 6179] chdir("./552") = 0
[pid 6179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6179] setpgid(0, 0) = 0
[pid 6179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6179] write(3, "1000", 4) = 4
[pid 6179] close(3) = 0
[pid 6179] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6179] memfd_create("syzkaller", 0) = 3
[pid 6179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6179] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6179] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6179] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6179] close(3) = 0
[pid 6179] mkdir("./file0", 0777) = 0
[ 254.002290][ T6179] loop0: detected capacity change from 0 to 4096
[ 254.018876][ T6179] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 254.026934][ T6179] NILFS (loop0): trying rollback from an earlier position
[ 254.040349][ T6179] NILFS (loop0): recovery complete
[pid 6179] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6179] chdir("./file0") = 0
[pid 6179] ioctl(4, LOOP_CLR_FD) = 0
[pid 6179] close(4) = 0
[pid 6179] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6179] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 254.046586][ T6180] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 254.050562][ T27] audit: type=1800 audit(1676306941.808:554): pid=6179 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6179] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6179] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6179] exit_group(0) = ?
[pid 6179] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6179, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./552", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./552", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./552/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./552/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./552/binderfs") = 0
umount2("./552/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./552/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./552/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./552/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./552/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./552/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./552") = 0
mkdir("./553", 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=0x555555db65d0) = 6181
./strace-static-x86_64: Process 6181 attached
[pid 6181] chdir("./553") = 0
[pid 6181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6181] setpgid(0, 0) = 0
[pid 6181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6181] write(3, "1000", 4) = 4
[pid 6181] close(3) = 0
[pid 6181] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6181] memfd_create("syzkaller", 0) = 3
[pid 6181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6181] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6181] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6181] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6181] close(3) = 0
[pid 6181] mkdir("./file0", 0777) = 0
[pid 6181] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6181] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 254.336763][ T6181] loop0: detected capacity change from 0 to 4096
[ 254.353100][ T6181] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 254.361270][ T6181] NILFS (loop0): trying rollback from an earlier position
[ 254.377524][ T6181] NILFS (loop0): recovery complete
[pid 6181] chdir("./file0") = 0
[pid 6181] ioctl(4, LOOP_CLR_FD) = 0
[pid 6181] close(4) = 0
[pid 6181] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6181] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 254.383391][ T6182] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 254.406138][ T27] audit: type=1800 audit(1676306942.148:555): pid=6181 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6181] sendfile(4, 5, NULL, 2147538701) = 65536
[pid 6181] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6181] exit_group(0) = ?
[pid 6181] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6181, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./553", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./553", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./553/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./553/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./553/binderfs") = 0
umount2("./553/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./553/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./553/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./553/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./553/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./553/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./553") = 0
mkdir("./554", 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=0x555555db65d0) = 6183
./strace-static-x86_64: Process 6183 attached
[pid 6183] chdir("./554") = 0
[ 254.432537][ T6182] NILFS (loop0): nilfs_direct_assign (ino=6): invalid key: 130
[ 254.440258][ T6182] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=6)
[ 254.450136][ T6182] Remounting filesystem read-only
[pid 6183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6183] setpgid(0, 0) = 0
[pid 6183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6183] write(3, "1000", 4) = 4
[pid 6183] close(3) = 0
[pid 6183] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6183] memfd_create("syzkaller", 0) = 3
[pid 6183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6183] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6183] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6183] close(3) = 0
[pid 6183] mkdir("./file0", 0777) = 0
[pid 6183] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6183] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6183] chdir("./file0") = 0
[pid 6183] ioctl(4, LOOP_CLR_FD) = 0
[ 254.541485][ T6183] loop0: detected capacity change from 0 to 4096
[ 254.557035][ T6183] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 254.565032][ T6183] NILFS (loop0): trying rollback from an earlier position
[ 254.579840][ T6183] NILFS (loop0): recovery complete
[pid 6183] close(4) = 0
[pid 6183] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6183] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 254.586589][ T6184] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 254.599645][ T27] audit: type=1800 audit(1676306942.358:556): pid=6183 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6183] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6183] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6183] exit_group(0) = ?
[pid 6183] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6183, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./554", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./554", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./554/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./554/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./554/binderfs") = 0
umount2("./554/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./554/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./554/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./554/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./554/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./554/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./554") = 0
mkdir("./555", 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=0x555555db65d0) = 6185
./strace-static-x86_64: Process 6185 attached
[pid 6185] chdir("./555") = 0
[pid 6185] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6185] setpgid(0, 0) = 0
[pid 6185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6185] write(3, "1000", 4) = 4
[pid 6185] close(3) = 0
[pid 6185] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6185] memfd_create("syzkaller", 0) = 3
[pid 6185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6185] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6185] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6185] close(3) = 0
[pid 6185] mkdir("./file0", 0777) = 0
[pid 6185] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6185] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6185] chdir("./file0") = 0
[pid 6185] ioctl(4, LOOP_CLR_FD) = 0
[pid 6185] close(4) = 0
[ 254.862232][ T6185] loop0: detected capacity change from 0 to 4096
[ 254.877385][ T6185] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 254.885393][ T6185] NILFS (loop0): trying rollback from an earlier position
[ 254.898109][ T6185] NILFS (loop0): recovery complete
[pid 6185] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6185] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 254.903906][ T6186] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 254.912410][ T27] audit: type=1800 audit(1676306942.658:557): pid=6185 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6185] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6185] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6185] exit_group(0) = ?
[pid 6185] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6185, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./555", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./555", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./555/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./555/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./555/binderfs") = 0
umount2("./555/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./555/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./555/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./555/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./555/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./555/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./555") = 0
mkdir("./556", 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=0x555555db65d0) = 6187
./strace-static-x86_64: Process 6187 attached
[pid 6187] chdir("./556") = 0
[pid 6187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6187] setpgid(0, 0) = 0
[pid 6187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6187] write(3, "1000", 4) = 4
[pid 6187] close(3) = 0
[pid 6187] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6187] memfd_create("syzkaller", 0) = 3
[pid 6187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6187] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6187] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6187] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6187] close(3) = 0
[pid 6187] mkdir("./file0", 0777) = 0
[pid 6187] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6187] chdir("./file0") = 0
[pid 6187] ioctl(4, LOOP_CLR_FD) = 0
[ 255.195431][ T6187] loop0: detected capacity change from 0 to 4096
[ 255.212093][ T6187] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 255.220192][ T6187] NILFS (loop0): trying rollback from an earlier position
[ 255.234258][ T6187] NILFS (loop0): recovery complete
[pid 6187] close(4) = 0
[pid 6187] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6187] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 255.241199][ T6188] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 255.249143][ T27] audit: type=1800 audit(1676306943.008:558): pid=6187 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6187] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6187] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6187] exit_group(0) = ?
[pid 6187] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6187, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./556", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./556", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./556/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./556/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./556/binderfs") = 0
umount2("./556/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./556/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./556/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./556/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./556/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./556/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./556") = 0
mkdir("./557", 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=0x555555db65d0) = 6189
./strace-static-x86_64: Process 6189 attached
[pid 6189] chdir("./557") = 0
[pid 6189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6189] setpgid(0, 0) = 0
[pid 6189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6189] write(3, "1000", 4) = 4
[pid 6189] close(3) = 0
[pid 6189] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6189] memfd_create("syzkaller", 0) = 3
[pid 6189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6189] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6189] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6189] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6189] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6189] close(3) = 0
[pid 6189] mkdir("./file0", 0777) = 0
[ 255.536010][ T6189] loop0: detected capacity change from 0 to 4096
[ 255.552421][ T6189] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 255.560532][ T6189] NILFS (loop0): trying rollback from an earlier position
[ 255.574510][ T6189] NILFS (loop0): recovery complete
[pid 6189] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6189] chdir("./file0") = 0
[pid 6189] ioctl(4, LOOP_CLR_FD) = 0
[pid 6189] close(4) = 0
[pid 6189] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6189] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 255.580822][ T6190] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 255.593547][ T27] audit: type=1800 audit(1676306943.358:559): pid=6189 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6189] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6189] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6189] exit_group(0) = ?
[pid 6189] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6189, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./557", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./557", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./557/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./557/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./557/binderfs") = 0
umount2("./557/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./557/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./557/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./557/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./557/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./557/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./557") = 0
mkdir("./558", 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=0x555555db65d0) = 6191
./strace-static-x86_64: Process 6191 attached
[pid 6191] chdir("./558") = 0
[pid 6191] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6191] setpgid(0, 0) = 0
[pid 6191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6191] write(3, "1000", 4) = 4
[pid 6191] close(3) = 0
[pid 6191] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6191] memfd_create("syzkaller", 0) = 3
[pid 6191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6191] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6191] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6191] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6191] close(3) = 0
[pid 6191] mkdir("./file0", 0777) = 0
[ 255.877540][ T6191] loop0: detected capacity change from 0 to 4096
[ 255.894672][ T6191] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 255.902791][ T6191] NILFS (loop0): trying rollback from an earlier position
[ 255.917178][ T6191] NILFS (loop0): recovery complete
[pid 6191] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6191] chdir("./file0") = 0
[pid 6191] ioctl(4, LOOP_CLR_FD) = 0
[pid 6191] close(4) = 0
[pid 6191] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6191] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 255.922951][ T6192] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 255.936259][ T27] audit: type=1800 audit(1676306943.688:560): pid=6191 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6191] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6191] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6191] exit_group(0) = ?
[pid 6191] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6191, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./558", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./558", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./558/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./558/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./558/binderfs") = 0
umount2("./558/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./558/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./558/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./558/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./558/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./558/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./558") = 0
mkdir("./559", 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=0x555555db65d0) = 6193
./strace-static-x86_64: Process 6193 attached
[pid 6193] chdir("./559") = 0
[pid 6193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6193] setpgid(0, 0) = 0
[pid 6193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6193] write(3, "1000", 4) = 4
[pid 6193] close(3) = 0
[pid 6193] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6193] memfd_create("syzkaller", 0) = 3
[pid 6193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6193] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6193] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6193] close(3) = 0
[pid 6193] mkdir("./file0", 0777) = 0
[pid 6193] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6193] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 256.203119][ T6193] loop0: detected capacity change from 0 to 4096
[ 256.219392][ T6193] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 256.227430][ T6193] NILFS (loop0): trying rollback from an earlier position
[ 256.243242][ T6193] NILFS (loop0): recovery complete
[pid 6193] chdir("./file0") = 0
[pid 6193] ioctl(4, LOOP_CLR_FD) = 0
[pid 6193] close(4) = 0
[pid 6193] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6193] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 256.251537][ T6194] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 256.267814][ T27] audit: type=1800 audit(1676306944.028:561): pid=6193 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6193] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6193] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6193] exit_group(0) = ?
[pid 6193] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6193, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./559", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./559", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./559/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./559/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./559/binderfs") = 0
umount2("./559/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./559/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./559/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./559/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./559/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./559/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./559") = 0
mkdir("./560", 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=0x555555db65d0) = 6195
./strace-static-x86_64: Process 6195 attached
[pid 6195] chdir("./560") = 0
[pid 6195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6195] setpgid(0, 0) = 0
[pid 6195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6195] write(3, "1000", 4) = 4
[pid 6195] close(3) = 0
[pid 6195] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6195] memfd_create("syzkaller", 0) = 3
[pid 6195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6195] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6195] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6195] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6195] close(3) = 0
[pid 6195] mkdir("./file0", 0777) = 0
[pid 6195] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6195] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6195] chdir("./file0") = 0
[pid 6195] ioctl(4, LOOP_CLR_FD) = 0
[pid 6195] close(4) = 0
[ 256.565227][ T6195] loop0: detected capacity change from 0 to 4096
[ 256.581641][ T6195] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 256.589743][ T6195] NILFS (loop0): trying rollback from an earlier position
[ 256.602727][ T6195] NILFS (loop0): recovery complete
[pid 6195] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6195] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 256.608559][ T6196] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6195] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6195] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6195] exit_group(0) = ?
[pid 6195] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6195, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./560", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./560", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./560/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./560/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./560/binderfs") = 0
umount2("./560/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./560/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./560/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./560/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./560/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./560/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./560") = 0
mkdir("./561", 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=0x555555db65d0) = 6197
./strace-static-x86_64: Process 6197 attached
[pid 6197] chdir("./561") = 0
[pid 6197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6197] setpgid(0, 0) = 0
[pid 6197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6197] write(3, "1000", 4) = 4
[pid 6197] close(3) = 0
[pid 6197] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6197] memfd_create("syzkaller", 0) = 3
[pid 6197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6197] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6197] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6197] close(3) = 0
[pid 6197] mkdir("./file0", 0777) = 0
[pid 6197] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 256.889417][ T6197] loop0: detected capacity change from 0 to 4096
[ 256.906239][ T6197] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 256.914243][ T6197] NILFS (loop0): trying rollback from an earlier position
[ 256.928871][ T6197] NILFS (loop0): recovery complete
[pid 6197] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6197] chdir("./file0") = 0
[pid 6197] ioctl(4, LOOP_CLR_FD) = 0
[pid 6197] close(4) = 0
[pid 6197] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6197] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 256.935092][ T6198] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6197] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6197] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6197] exit_group(0) = ?
[pid 6197] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6197, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./561", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./561", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./561/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./561/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./561/binderfs") = 0
umount2("./561/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./561/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./561/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./561/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./561/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./561/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./561") = 0
mkdir("./562", 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=0x555555db65d0) = 6199
./strace-static-x86_64: Process 6199 attached
[pid 6199] chdir("./562") = 0
[pid 6199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6199] setpgid(0, 0) = 0
[pid 6199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6199] write(3, "1000", 4) = 4
[pid 6199] close(3) = 0
[pid 6199] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6199] memfd_create("syzkaller", 0) = 3
[pid 6199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6199] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6199] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6199] close(3) = 0
[pid 6199] mkdir("./file0", 0777) = 0
[ 257.235020][ T6199] loop0: detected capacity change from 0 to 4096
[ 257.250924][ T6199] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 257.258994][ T6199] NILFS (loop0): trying rollback from an earlier position
[ 257.273660][ T6199] NILFS (loop0): recovery complete
[pid 6199] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6199] chdir("./file0") = 0
[pid 6199] ioctl(4, LOOP_CLR_FD) = 0
[pid 6199] close(4) = 0
[pid 6199] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6199] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 257.279624][ T6200] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6199] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6199] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6199] exit_group(0) = ?
[pid 6199] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6199, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./562", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./562", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./562/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./562/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./562/binderfs") = 0
umount2("./562/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./562/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./562/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./562/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./562/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./562/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./562") = 0
mkdir("./563", 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=0x555555db65d0) = 6201
./strace-static-x86_64: Process 6201 attached
[pid 6201] chdir("./563") = 0
[pid 6201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6201] setpgid(0, 0) = 0
[pid 6201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6201] write(3, "1000", 4) = 4
[pid 6201] close(3) = 0
[pid 6201] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6201] memfd_create("syzkaller", 0) = 3
[pid 6201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6201] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6201] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6201] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6201] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6201] close(3) = 0
[pid 6201] mkdir("./file0", 0777) = 0
[ 257.567461][ T6201] loop0: detected capacity change from 0 to 4096
[ 257.583906][ T6201] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 257.592268][ T6201] NILFS (loop0): trying rollback from an earlier position
[ 257.607876][ T6201] NILFS (loop0): recovery complete
[pid 6201] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6201] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6201] chdir("./file0") = 0
[pid 6201] ioctl(4, LOOP_CLR_FD) = 0
[pid 6201] close(4) = 0
[pid 6201] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6201] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 257.613824][ T6202] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6201] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6201] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6201] exit_group(0) = ?
[pid 6201] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6201, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./563", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./563", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./563/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./563/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./563/binderfs") = 0
umount2("./563/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./563/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./563/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./563/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./563/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./563/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./563") = 0
mkdir("./564", 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=0x555555db65d0) = 6203
./strace-static-x86_64: Process 6203 attached
[pid 6203] chdir("./564") = 0
[pid 6203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6203] setpgid(0, 0) = 0
[pid 6203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6203] write(3, "1000", 4) = 4
[pid 6203] close(3) = 0
[pid 6203] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6203] memfd_create("syzkaller", 0) = 3
[pid 6203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6203] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6203] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6203] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6203] close(3) = 0
[pid 6203] mkdir("./file0", 0777) = 0
[pid 6203] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6203] chdir("./file0") = 0
[pid 6203] ioctl(4, LOOP_CLR_FD) = 0
[ 257.901713][ T6203] loop0: detected capacity change from 0 to 4096
[ 257.917770][ T6203] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 257.925873][ T6203] NILFS (loop0): trying rollback from an earlier position
[ 257.940187][ T6203] NILFS (loop0): recovery complete
[pid 6203] close(4) = 0
[pid 6203] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6203] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 257.945949][ T6204] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6203] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6203] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6203] exit_group(0) = ?
[pid 6203] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6203, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
umount2("./564", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./564", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./564/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./564/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./564/binderfs") = 0
umount2("./564/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./564/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./564/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./564/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./564/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./564/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./564") = 0
mkdir("./565", 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=0x555555db65d0) = 6205
./strace-static-x86_64: Process 6205 attached
[pid 6205] chdir("./565") = 0
[pid 6205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6205] setpgid(0, 0) = 0
[pid 6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6205] write(3, "1000", 4) = 4
[pid 6205] close(3) = 0
[pid 6205] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6205] memfd_create("syzkaller", 0) = 3
[pid 6205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6205] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6205] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6205] close(3) = 0
[pid 6205] mkdir("./file0", 0777) = 0
[ 258.235125][ T6205] loop0: detected capacity change from 0 to 4096
[ 258.250116][ T6205] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 258.258182][ T6205] NILFS (loop0): trying rollback from an earlier position
[ 258.272300][ T6205] NILFS (loop0): recovery complete
[pid 6205] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6205] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6205] chdir("./file0") = 0
[pid 6205] ioctl(4, LOOP_CLR_FD) = 0
[pid 6205] close(4) = 0
[pid 6205] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6205] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 258.278646][ T6206] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6205] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6205] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6205] exit_group(0) = ?
[pid 6205] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6205, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./565", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./565", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./565/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./565/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./565/binderfs") = 0
umount2("./565/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./565/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./565/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./565/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./565/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./565/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./565") = 0
mkdir("./566", 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=0x555555db65d0) = 6207
./strace-static-x86_64: Process 6207 attached
[pid 6207] chdir("./566") = 0
[pid 6207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6207] setpgid(0, 0) = 0
[pid 6207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6207] write(3, "1000", 4) = 4
[pid 6207] close(3) = 0
[pid 6207] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6207] memfd_create("syzkaller", 0) = 3
[pid 6207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6207] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6207] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6207] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6207] close(3) = 0
[pid 6207] mkdir("./file0", 0777) = 0
[pid 6207] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6207] chdir("./file0") = 0
[ 258.558576][ T6207] loop0: detected capacity change from 0 to 4096
[ 258.573207][ T6207] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 258.581345][ T6207] NILFS (loop0): trying rollback from an earlier position
[ 258.595043][ T6207] NILFS (loop0): recovery complete
[pid 6207] ioctl(4, LOOP_CLR_FD) = 0
[pid 6207] close(4) = 0
[pid 6207] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6207] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 258.601586][ T6208] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 258.614113][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 258.614125][ T27] audit: type=1800 audit(1676306946.378:568): pid=6207 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6207] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6207] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6207] exit_group(0) = ?
[pid 6207] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6207, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./566", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./566", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./566/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./566/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./566/binderfs") = 0
umount2("./566/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./566/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./566/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./566/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./566/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./566/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./566") = 0
mkdir("./567", 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=0x555555db65d0) = 6209
./strace-static-x86_64: Process 6209 attached
[pid 6209] chdir("./567") = 0
[pid 6209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6209] setpgid(0, 0) = 0
[pid 6209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6209] write(3, "1000", 4) = 4
[pid 6209] close(3) = 0
[pid 6209] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6209] memfd_create("syzkaller", 0) = 3
[pid 6209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6209] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6209] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6209] close(3) = 0
[pid 6209] mkdir("./file0", 0777) = 0
[pid 6209] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6209] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6209] chdir("./file0") = 0
[pid 6209] ioctl(4, LOOP_CLR_FD) = 0
[pid 6209] close(4) = 0
[ 258.887122][ T6209] loop0: detected capacity change from 0 to 4096
[ 258.903684][ T6209] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 258.911725][ T6209] NILFS (loop0): trying rollback from an earlier position
[ 258.925572][ T6209] NILFS (loop0): recovery complete
[pid 6209] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6209] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 258.932031][ T6210] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 258.945277][ T27] audit: type=1800 audit(1676306946.698:569): pid=6209 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6209] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6209] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6209] exit_group(0) = ?
[pid 6209] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6209, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./567", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./567", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./567/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./567/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./567/binderfs") = 0
umount2("./567/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./567/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./567/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./567/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./567/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./567/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./567") = 0
mkdir("./568", 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=0x555555db65d0) = 6211
./strace-static-x86_64: Process 6211 attached
[pid 6211] chdir("./568") = 0
[pid 6211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6211] setpgid(0, 0) = 0
[pid 6211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6211] write(3, "1000", 4) = 4
[pid 6211] close(3) = 0
[pid 6211] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6211] memfd_create("syzkaller", 0) = 3
[pid 6211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6211] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6211] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6211] close(3) = 0
[pid 6211] mkdir("./file0", 0777) = 0
[ 259.234543][ T6211] loop0: detected capacity change from 0 to 4096
[ 259.250578][ T6211] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 259.258723][ T6211] NILFS (loop0): trying rollback from an earlier position
[ 259.272068][ T6211] NILFS (loop0): recovery complete
[pid 6211] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6211] chdir("./file0") = 0
[pid 6211] ioctl(4, LOOP_CLR_FD) = 0
[pid 6211] close(4) = 0
[pid 6211] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6211] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 259.278032][ T6212] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 259.291768][ T27] audit: type=1800 audit(1676306947.048:570): pid=6211 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6211] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6211] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6211] exit_group(0) = ?
[pid 6211] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6211, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./568", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./568", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./568/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./568/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./568/binderfs") = 0
umount2("./568/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./568/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./568/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./568/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./568/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./568/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./568") = 0
mkdir("./569", 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=0x555555db65d0) = 6213
./strace-static-x86_64: Process 6213 attached
[pid 6213] chdir("./569") = 0
[pid 6213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6213] setpgid(0, 0) = 0
[pid 6213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6213] write(3, "1000", 4) = 4
[pid 6213] close(3) = 0
[pid 6213] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6213] memfd_create("syzkaller", 0) = 3
[pid 6213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6213] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6213] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6213] close(3) = 0
[pid 6213] mkdir("./file0", 0777) = 0
[ 259.567913][ T6213] loop0: detected capacity change from 0 to 4096
[ 259.585862][ T6213] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 259.593997][ T6213] NILFS (loop0): trying rollback from an earlier position
[ 259.607706][ T6213] NILFS (loop0): recovery complete
[pid 6213] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6213] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6213] chdir("./file0") = 0
[pid 6213] ioctl(4, LOOP_CLR_FD) = 0
[pid 6213] close(4) = 0
[pid 6213] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6213] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 259.613532][ T6214] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 259.637930][ T27] audit: type=1800 audit(1676306947.378:571): pid=6213 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6213] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6213] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6213] exit_group(0) = ?
[pid 6213] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6213, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./569", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./569", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./569/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./569/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./569/binderfs") = 0
umount2("./569/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./569/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./569/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./569/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./569/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./569/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./569") = 0
mkdir("./570", 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=0x555555db65d0) = 6215
./strace-static-x86_64: Process 6215 attached
[pid 6215] chdir("./570") = 0
[pid 6215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6215] setpgid(0, 0) = 0
[pid 6215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6215] write(3, "1000", 4) = 4
[pid 6215] close(3) = 0
[pid 6215] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6215] memfd_create("syzkaller", 0) = 3
[pid 6215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6215] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6215] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6215] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6215] close(3) = 0
[pid 6215] mkdir("./file0", 0777) = 0
[ 259.923518][ T6215] loop0: detected capacity change from 0 to 4096
[ 259.940684][ T6215] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 259.948737][ T6215] NILFS (loop0): trying rollback from an earlier position
[ 259.963700][ T6215] NILFS (loop0): recovery complete
[pid 6215] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6215] chdir("./file0") = 0
[pid 6215] ioctl(4, LOOP_CLR_FD) = 0
[pid 6215] close(4) = 0
[pid 6215] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6215] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 259.969527][ T6216] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 259.983805][ T27] audit: type=1800 audit(1676306947.738:572): pid=6215 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6215] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6215] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6215] exit_group(0) = ?
[pid 6215] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6215, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./570", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./570", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./570/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./570/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./570/binderfs") = 0
umount2("./570/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./570/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./570/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./570/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./570/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./570/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./570") = 0
mkdir("./571", 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=0x555555db65d0) = 6217
./strace-static-x86_64: Process 6217 attached
[pid 6217] chdir("./571") = 0
[pid 6217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6217] setpgid(0, 0) = 0
[pid 6217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6217] write(3, "1000", 4) = 4
[pid 6217] close(3) = 0
[pid 6217] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6217] memfd_create("syzkaller", 0) = 3
[pid 6217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6217] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6217] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6217] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6217] close(3) = 0
[pid 6217] mkdir("./file0", 0777) = 0
[pid 6217] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6217] chdir("./file0") = 0
[pid 6217] ioctl(4, LOOP_CLR_FD) = 0
[ 260.273048][ T6217] loop0: detected capacity change from 0 to 4096
[ 260.288447][ T6217] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 260.296502][ T6217] NILFS (loop0): trying rollback from an earlier position
[ 260.309936][ T6217] NILFS (loop0): recovery complete
[pid 6217] close(4) = 0
[pid 6217] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6217] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 260.316203][ T6218] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 260.333418][ T27] audit: type=1800 audit(1676306948.088:573): pid=6217 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6217] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6217] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6217] exit_group(0) = ?
[pid 6217] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6217, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./571", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./571", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./571/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./571/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./571/binderfs") = 0
umount2("./571/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./571/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./571/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./571/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./571/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./571/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./571") = 0
mkdir("./572", 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=0x555555db65d0) = 6219
./strace-static-x86_64: Process 6219 attached
[pid 6219] chdir("./572") = 0
[pid 6219] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6219] setpgid(0, 0) = 0
[pid 6219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6219] write(3, "1000", 4) = 4
[pid 6219] close(3) = 0
[pid 6219] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6219] memfd_create("syzkaller", 0) = 3
[pid 6219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6219] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6219] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6219] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6219] close(3) = 0
[pid 6219] mkdir("./file0", 0777) = 0
[ 260.716735][ T6219] loop0: detected capacity change from 0 to 4096
[ 260.735566][ T6219] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 260.744107][ T6219] NILFS (loop0): trying rollback from an earlier position
[ 260.760652][ T6219] NILFS (loop0): recovery complete
[pid 6219] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6219] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6219] chdir("./file0") = 0
[pid 6219] ioctl(4, LOOP_CLR_FD) = 0
[pid 6219] close(4) = 0
[pid 6219] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6219] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 260.767266][ T6220] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 260.789993][ T27] audit: type=1800 audit(1676306948.548:574): pid=6219 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6219] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6219] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6219] exit_group(0) = ?
[pid 6219] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6219, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./572", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./572", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./572/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./572/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./572/binderfs") = 0
umount2("./572/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./572/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./572/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./572/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./572/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./572/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./572") = 0
mkdir("./573", 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=0x555555db65d0) = 6221
./strace-static-x86_64: Process 6221 attached
[pid 6221] chdir("./573") = 0
[pid 6221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6221] setpgid(0, 0) = 0
[pid 6221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6221] write(3, "1000", 4) = 4
[pid 6221] close(3) = 0
[pid 6221] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6221] memfd_create("syzkaller", 0) = 3
[pid 6221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6221] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6221] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6221] close(3) = 0
[pid 6221] mkdir("./file0", 0777) = 0
[ 261.136692][ T6221] loop0: detected capacity change from 0 to 4096
[ 261.153210][ T6221] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 261.161253][ T6221] NILFS (loop0): trying rollback from an earlier position
[ 261.177802][ T6221] NILFS (loop0): recovery complete
[pid 6221] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6221] chdir("./file0") = 0
[pid 6221] ioctl(4, LOOP_CLR_FD) = 0
[pid 6221] close(4) = 0
[pid 6221] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6221] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 261.183593][ T6222] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 261.198699][ T27] audit: type=1800 audit(1676306948.958:575): pid=6221 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6221] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6221] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6221] exit_group(0) = ?
[pid 6221] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6221, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./573", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./573", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./573/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./573/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./573/binderfs") = 0
umount2("./573/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./573/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./573/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./573/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./573/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./573/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./573") = 0
mkdir("./574", 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=0x555555db65d0) = 6223
./strace-static-x86_64: Process 6223 attached
[pid 6223] chdir("./574") = 0
[pid 6223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6223] setpgid(0, 0) = 0
[pid 6223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6223] write(3, "1000", 4) = 4
[pid 6223] close(3) = 0
[pid 6223] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6223] memfd_create("syzkaller", 0) = 3
[pid 6223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6223] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6223] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6223] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6223] close(3) = 0
[pid 6223] mkdir("./file0", 0777) = 0
[ 261.473583][ T6223] loop0: detected capacity change from 0 to 4096
[ 261.489675][ T6223] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 261.497707][ T6223] NILFS (loop0): trying rollback from an earlier position
[ 261.510881][ T6223] NILFS (loop0): recovery complete
[pid 6223] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6223] chdir("./file0") = 0
[pid 6223] ioctl(4, LOOP_CLR_FD) = 0
[pid 6223] close(4) = 0
[pid 6223] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6223] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 261.517093][ T6224] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 261.521723][ T27] audit: type=1800 audit(1676306949.278:576): pid=6223 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6223] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6223] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6223] exit_group(0) = ?
[pid 6223] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6223, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./574", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./574", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./574/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./574/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./574/binderfs") = 0
umount2("./574/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./574/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./574/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./574/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./574/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./574/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./574") = 0
mkdir("./575", 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=0x555555db65d0) = 6225
./strace-static-x86_64: Process 6225 attached
[pid 6225] chdir("./575") = 0
[pid 6225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6225] setpgid(0, 0) = 0
[pid 6225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6225] write(3, "1000", 4) = 4
[pid 6225] close(3) = 0
[pid 6225] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6225] memfd_create("syzkaller", 0) = 3
[pid 6225] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6225] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6225] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6225] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6225] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6225] close(3) = 0
[pid 6225] mkdir("./file0", 0777) = 0
[ 261.790216][ T6225] loop0: detected capacity change from 0 to 4096
[ 261.805772][ T6225] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 261.814045][ T6225] NILFS (loop0): trying rollback from an earlier position
[ 261.828054][ T6225] NILFS (loop0): recovery complete
[pid 6225] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6225] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6225] chdir("./file0") = 0
[pid 6225] ioctl(4, LOOP_CLR_FD) = 0
[pid 6225] close(4) = 0
[pid 6225] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6225] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 261.834340][ T6226] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 261.849931][ T27] audit: type=1800 audit(1676306949.608:577): pid=6225 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6225] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6225] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6225] exit_group(0) = ?
[pid 6225] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6225, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
umount2("./575", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./575", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./575/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./575/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./575/binderfs") = 0
umount2("./575/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./575/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./575/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./575/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./575/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./575/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./575") = 0
mkdir("./576", 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=0x555555db65d0) = 6227
./strace-static-x86_64: Process 6227 attached
[pid 6227] chdir("./576") = 0
[pid 6227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6227] setpgid(0, 0) = 0
[pid 6227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6227] write(3, "1000", 4) = 4
[pid 6227] close(3) = 0
[pid 6227] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6227] memfd_create("syzkaller", 0) = 3
[pid 6227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6227] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6227] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6227] close(3) = 0
[pid 6227] mkdir("./file0", 0777) = 0
[ 262.117207][ T6227] loop0: detected capacity change from 0 to 4096
[ 262.133929][ T6227] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 262.141998][ T6227] NILFS (loop0): trying rollback from an earlier position
[ 262.155806][ T6227] NILFS (loop0): recovery complete
[pid 6227] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6227] chdir("./file0") = 0
[pid 6227] ioctl(4, LOOP_CLR_FD) = 0
[pid 6227] close(4) = 0
[pid 6227] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6227] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 262.161750][ T6228] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6227] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6227] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6227] exit_group(0) = ?
[pid 6227] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6227, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./576", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./576", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./576/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./576/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./576/binderfs") = 0
umount2("./576/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./576/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./576/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./576/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./576/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./576/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./576") = 0
mkdir("./577", 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=0x555555db65d0) = 6229
./strace-static-x86_64: Process 6229 attached
[pid 6229] chdir("./577") = 0
[pid 6229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6229] setpgid(0, 0) = 0
[pid 6229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6229] write(3, "1000", 4) = 4
[pid 6229] close(3) = 0
[pid 6229] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6229] memfd_create("syzkaller", 0) = 3
[pid 6229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6229] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6229] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6229] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6229] close(3) = 0
[pid 6229] mkdir("./file0", 0777) = 0
[ 262.435454][ T6229] loop0: detected capacity change from 0 to 4096
[ 262.451356][ T6229] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 262.459473][ T6229] NILFS (loop0): trying rollback from an earlier position
[ 262.472614][ T6229] NILFS (loop0): recovery complete
[pid 6229] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6229] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6229] chdir("./file0") = 0
[pid 6229] ioctl(4, LOOP_CLR_FD) = 0
[pid 6229] close(4) = 0
[pid 6229] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6229] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 262.478397][ T6230] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6229] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6229] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6229] exit_group(0) = ?
[pid 6229] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6229, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./577", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./577", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./577/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./577/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./577/binderfs") = 0
umount2("./577/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./577/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./577/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./577/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./577/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./577/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./577") = 0
mkdir("./578", 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=0x555555db65d0) = 6231
./strace-static-x86_64: Process 6231 attached
[pid 6231] chdir("./578") = 0
[pid 6231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6231] setpgid(0, 0) = 0
[pid 6231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6231] write(3, "1000", 4) = 4
[pid 6231] close(3) = 0
[pid 6231] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6231] memfd_create("syzkaller", 0) = 3
[pid 6231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6231] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6231] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6231] close(3) = 0
[pid 6231] mkdir("./file0", 0777) = 0
[pid 6231] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6231] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6231] chdir("./file0") = 0
[pid 6231] ioctl(4, LOOP_CLR_FD) = 0
[pid 6231] close(4) = 0
[ 262.750460][ T6231] loop0: detected capacity change from 0 to 4096
[ 262.766556][ T6231] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 262.774565][ T6231] NILFS (loop0): trying rollback from an earlier position
[ 262.788524][ T6231] NILFS (loop0): recovery complete
[pid 6231] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6231] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 262.794433][ T6232] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6231] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6231] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6231] exit_group(0) = ?
[pid 6231] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6231, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./578", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./578", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./578/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./578/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./578/binderfs") = 0
umount2("./578/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./578/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./578/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./578/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./578/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./578/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./578") = 0
mkdir("./579", 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=0x555555db65d0) = 6233
./strace-static-x86_64: Process 6233 attached
[pid 6233] chdir("./579") = 0
[pid 6233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6233] setpgid(0, 0) = 0
[pid 6233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6233] write(3, "1000", 4) = 4
[pid 6233] close(3) = 0
[pid 6233] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6233] memfd_create("syzkaller", 0) = 3
[pid 6233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6233] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6233] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6233] close(3) = 0
[pid 6233] mkdir("./file0", 0777) = 0
[ 263.071529][ T6233] loop0: detected capacity change from 0 to 4096
[ 263.087368][ T6233] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 263.095383][ T6233] NILFS (loop0): trying rollback from an earlier position
[ 263.109015][ T6233] NILFS (loop0): recovery complete
[pid 6233] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6233] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6233] chdir("./file0") = 0
[pid 6233] ioctl(4, LOOP_CLR_FD) = 0
[pid 6233] close(4) = 0
[pid 6233] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6233] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 263.115364][ T6234] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6233] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6233] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6233] exit_group(0) = ?
[pid 6233] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6233, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./579", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./579", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./579/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./579/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./579/binderfs") = 0
umount2("./579/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./579/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./579/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./579/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./579/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./579/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./579") = 0
mkdir("./580", 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=0x555555db65d0) = 6235
./strace-static-x86_64: Process 6235 attached
[pid 6235] chdir("./580") = 0
[pid 6235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6235] setpgid(0, 0) = 0
[pid 6235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6235] write(3, "1000", 4) = 4
[pid 6235] close(3) = 0
[pid 6235] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6235] memfd_create("syzkaller", 0) = 3
[pid 6235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6235] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6235] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6235] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6235] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6235] close(3) = 0
[pid 6235] mkdir("./file0", 0777) = 0
[ 263.413437][ T6235] loop0: detected capacity change from 0 to 4096
[ 263.430242][ T6235] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 263.438286][ T6235] NILFS (loop0): trying rollback from an earlier position
[ 263.451629][ T6235] NILFS (loop0): recovery complete
[pid 6235] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6235] chdir("./file0") = 0
[pid 6235] ioctl(4, LOOP_CLR_FD) = 0
[pid 6235] close(4) = 0
[pid 6235] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6235] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 263.457847][ T6236] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6235] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6235] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6235] exit_group(0) = ?
[pid 6235] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6235, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./580", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./580", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./580/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./580/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./580/binderfs") = 0
umount2("./580/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./580/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./580/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./580/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./580/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./580/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./580") = 0
mkdir("./581", 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=0x555555db65d0) = 6237
./strace-static-x86_64: Process 6237 attached
[pid 6237] chdir("./581") = 0
[pid 6237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6237] setpgid(0, 0) = 0
[pid 6237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6237] write(3, "1000", 4) = 4
[pid 6237] close(3) = 0
[pid 6237] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6237] memfd_create("syzkaller", 0) = 3
[pid 6237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6237] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6237] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6237] close(3) = 0
[pid 6237] mkdir("./file0", 0777) = 0
[pid 6237] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 263.736685][ T6237] loop0: detected capacity change from 0 to 4096
[ 263.752998][ T6237] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 263.761103][ T6237] NILFS (loop0): trying rollback from an earlier position
[ 263.778211][ T6237] NILFS (loop0): recovery complete
[pid 6237] chdir("./file0") = 0
[pid 6237] ioctl(4, LOOP_CLR_FD) = 0
[pid 6237] close(4) = 0
[pid 6237] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6237] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 263.786467][ T6238] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 263.797982][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 263.797994][ T27] audit: type=1800 audit(1676306951.558:583): pid=6237 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6237] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6237] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6237] exit_group(0) = ?
[pid 6237] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6237, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./581", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./581", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./581/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./581/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./581/binderfs") = 0
umount2("./581/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./581/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./581/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./581/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./581/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./581/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./581") = 0
mkdir("./582", 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=0x555555db65d0) = 6239
./strace-static-x86_64: Process 6239 attached
[pid 6239] chdir("./582") = 0
[pid 6239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6239] setpgid(0, 0) = 0
[pid 6239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6239] write(3, "1000", 4) = 4
[pid 6239] close(3) = 0
[pid 6239] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6239] memfd_create("syzkaller", 0) = 3
[pid 6239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6239] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6239] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6239] close(3) = 0
[pid 6239] mkdir("./file0", 0777) = 0
[ 264.106917][ T6239] loop0: detected capacity change from 0 to 4096
[ 264.122880][ T6239] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 264.131007][ T6239] NILFS (loop0): trying rollback from an earlier position
[ 264.147769][ T6239] NILFS (loop0): recovery complete
[pid 6239] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6239] chdir("./file0") = 0
[pid 6239] ioctl(4, LOOP_CLR_FD) = 0
[pid 6239] close(4) = 0
[pid 6239] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6239] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 264.153577][ T6240] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 264.158581][ T27] audit: type=1800 audit(1676306951.918:584): pid=6239 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6239] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6239] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6239] exit_group(0) = ?
[pid 6239] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6239, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./582", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./582", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./582/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./582/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./582/binderfs") = 0
umount2("./582/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./582/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./582/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./582/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./582/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./582/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./582") = 0
mkdir("./583", 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=0x555555db65d0) = 6241
./strace-static-x86_64: Process 6241 attached
[pid 6241] chdir("./583") = 0
[pid 6241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6241] setpgid(0, 0) = 0
[pid 6241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6241] write(3, "1000", 4) = 4
[pid 6241] close(3) = 0
[pid 6241] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6241] memfd_create("syzkaller", 0) = 3
[pid 6241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6241] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6241] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6241] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6241] close(3) = 0
[pid 6241] mkdir("./file0", 0777) = 0
[pid 6241] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6241] chdir("./file0") = 0
[pid 6241] ioctl(4, LOOP_CLR_FD) = 0
[pid 6241] close(4) = 0
[ 264.448248][ T6241] loop0: detected capacity change from 0 to 4096
[ 264.464715][ T6241] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 264.472860][ T6241] NILFS (loop0): trying rollback from an earlier position
[ 264.487558][ T6241] NILFS (loop0): recovery complete
[pid 6241] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6241] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 264.493674][ T6242] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 264.500291][ T27] audit: type=1800 audit(1676306952.258:585): pid=6241 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6241] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6241] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6241] exit_group(0) = ?
[pid 6241] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6241, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./583", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./583", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./583/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./583/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./583/binderfs") = 0
umount2("./583/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./583/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./583/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./583/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./583/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./583/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./583") = 0
mkdir("./584", 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=0x555555db65d0) = 6243
./strace-static-x86_64: Process 6243 attached
[pid 6243] chdir("./584") = 0
[pid 6243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6243] setpgid(0, 0) = 0
[pid 6243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6243] write(3, "1000", 4) = 4
[pid 6243] close(3) = 0
[pid 6243] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6243] memfd_create("syzkaller", 0) = 3
[pid 6243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6243] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6243] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6243] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6243] close(3) = 0
[pid 6243] mkdir("./file0", 0777) = 0
[pid 6243] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6243] chdir("./file0") = 0
[pid 6243] ioctl(4, LOOP_CLR_FD) = 0
[ 264.779170][ T6243] loop0: detected capacity change from 0 to 4096
[ 264.795156][ T6243] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 264.803399][ T6243] NILFS (loop0): trying rollback from an earlier position
[ 264.817584][ T6243] NILFS (loop0): recovery complete
[pid 6243] close(4) = 0
[pid 6243] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6243] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 264.823663][ T6244] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 264.836858][ T27] audit: type=1800 audit(1676306952.598:586): pid=6243 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6243] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6243] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6243] exit_group(0) = ?
[pid 6243] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6243, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./584", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./584", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./584/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./584/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./584/binderfs") = 0
umount2("./584/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./584/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./584/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./584/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./584/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./584/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./584") = 0
mkdir("./585", 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=0x555555db65d0) = 6245
./strace-static-x86_64: Process 6245 attached
[pid 6245] chdir("./585") = 0
[pid 6245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6245] setpgid(0, 0) = 0
[pid 6245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6245] write(3, "1000", 4) = 4
[pid 6245] close(3) = 0
[pid 6245] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6245] memfd_create("syzkaller", 0) = 3
[pid 6245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6245] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6245] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6245] close(3) = 0
[pid 6245] mkdir("./file0", 0777) = 0
[pid 6245] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6245] chdir("./file0") = 0
[ 265.136228][ T6245] loop0: detected capacity change from 0 to 4096
[ 265.154400][ T6245] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 265.162707][ T6245] NILFS (loop0): trying rollback from an earlier position
[ 265.176626][ T6245] NILFS (loop0): recovery complete
[pid 6245] ioctl(4, LOOP_CLR_FD) = 0
[pid 6245] close(4) = 0
[pid 6245] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6245] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 265.182610][ T6246] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 265.195613][ T27] audit: type=1800 audit(1676306952.948:587): pid=6245 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6245] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6245] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6245] exit_group(0) = ?
[pid 6245] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6245, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./585", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./585", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./585/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./585/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./585/binderfs") = 0
umount2("./585/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./585/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./585/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./585/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./585/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./585/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./585") = 0
mkdir("./586", 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=0x555555db65d0) = 6247
./strace-static-x86_64: Process 6247 attached
[pid 6247] chdir("./586") = 0
[pid 6247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6247] setpgid(0, 0) = 0
[pid 6247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6247] write(3, "1000", 4) = 4
[pid 6247] close(3) = 0
[pid 6247] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6247] memfd_create("syzkaller", 0) = 3
[pid 6247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6247] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6247] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6247] close(3) = 0
[pid 6247] mkdir("./file0", 0777) = 0
[pid 6247] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6247] chdir("./file0") = 0
[pid 6247] ioctl(4, LOOP_CLR_FD) = 0
[pid 6247] close(4) = 0
[ 265.477578][ T6247] loop0: detected capacity change from 0 to 4096
[ 265.493930][ T6247] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 265.502038][ T6247] NILFS (loop0): trying rollback from an earlier position
[ 265.516067][ T6247] NILFS (loop0): recovery complete
[pid 6247] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6247] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 265.522461][ T6248] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 265.529128][ T27] audit: type=1800 audit(1676306953.288:588): pid=6247 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6247] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6247] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6247] exit_group(0) = ?
[pid 6247] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6247, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./586", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./586", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./586/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./586/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./586/binderfs") = 0
umount2("./586/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./586/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./586/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./586/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./586/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./586/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./586") = 0
mkdir("./587", 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=0x555555db65d0) = 6249
./strace-static-x86_64: Process 6249 attached
[pid 6249] chdir("./587") = 0
[pid 6249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6249] setpgid(0, 0) = 0
[pid 6249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6249] write(3, "1000", 4) = 4
[pid 6249] close(3) = 0
[pid 6249] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6249] memfd_create("syzkaller", 0) = 3
[pid 6249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6249] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6249] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6249] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6249] close(3) = 0
[pid 6249] mkdir("./file0", 0777) = 0
[pid 6249] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6249] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6249] chdir("./file0") = 0
[pid 6249] ioctl(4, LOOP_CLR_FD) = 0
[pid 6249] close(4) = 0
[ 265.809256][ T6249] loop0: detected capacity change from 0 to 4096
[ 265.825043][ T6249] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 265.833077][ T6249] NILFS (loop0): trying rollback from an earlier position
[ 265.846900][ T6249] NILFS (loop0): recovery complete
[pid 6249] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6249] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 265.853001][ T6250] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 265.859555][ T27] audit: type=1800 audit(1676306953.618:589): pid=6249 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6249] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6249] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6249] exit_group(0) = ?
[pid 6249] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6249, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./587", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./587", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./587/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./587/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./587/binderfs") = 0
umount2("./587/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./587/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./587/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./587/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./587/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./587/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./587") = 0
mkdir("./588", 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=0x555555db65d0) = 6251
./strace-static-x86_64: Process 6251 attached
[pid 6251] chdir("./588") = 0
[pid 6251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6251] setpgid(0, 0) = 0
[pid 6251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6251] write(3, "1000", 4) = 4
[pid 6251] close(3) = 0
[pid 6251] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6251] memfd_create("syzkaller", 0) = 3
[pid 6251] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6251] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6251] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6251] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6251] close(3) = 0
[pid 6251] mkdir("./file0", 0777) = 0
[pid 6251] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 266.147499][ T6251] loop0: detected capacity change from 0 to 4096
[ 266.163006][ T6251] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 266.171072][ T6251] NILFS (loop0): trying rollback from an earlier position
[ 266.184938][ T6251] NILFS (loop0): recovery complete
[pid 6251] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6251] chdir("./file0") = 0
[pid 6251] ioctl(4, LOOP_CLR_FD) = 0
[pid 6251] close(4) = 0
[pid 6251] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6251] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 266.191097][ T6252] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 266.202345][ T27] audit: type=1800 audit(1676306953.958:590): pid=6251 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6251] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6251] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6251] exit_group(0) = ?
[pid 6251] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6251, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./588", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./588", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./588/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./588/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./588/binderfs") = 0
umount2("./588/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./588/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./588/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./588/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./588/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./588/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./588") = 0
mkdir("./589", 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=0x555555db65d0) = 6253
./strace-static-x86_64: Process 6253 attached
[pid 6253] chdir("./589") = 0
[pid 6253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6253] setpgid(0, 0) = 0
[pid 6253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6253] write(3, "1000", 4) = 4
[pid 6253] close(3) = 0
[pid 6253] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6253] memfd_create("syzkaller", 0) = 3
[pid 6253] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6253] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6253] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6253] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6253] close(3) = 0
[pid 6253] mkdir("./file0", 0777) = 0
[pid 6253] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6253] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6253] chdir("./file0") = 0
[pid 6253] ioctl(4, LOOP_CLR_FD) = 0
[pid 6253] close(4) = 0
[ 266.488206][ T6253] loop0: detected capacity change from 0 to 4096
[ 266.502777][ T6253] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 266.510917][ T6253] NILFS (loop0): trying rollback from an earlier position
[ 266.524577][ T6253] NILFS (loop0): recovery complete
[pid 6253] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6253] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 266.530540][ T6254] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 266.538905][ T27] audit: type=1800 audit(1676306954.298:591): pid=6253 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6253] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6253] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6253] exit_group(0) = ?
[pid 6253] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6253, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
umount2("./589", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./589", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./589/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./589/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./589/binderfs") = 0
umount2("./589/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./589/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./589/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./589/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./589/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./589/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./589") = 0
mkdir("./590", 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=0x555555db65d0) = 6255
./strace-static-x86_64: Process 6255 attached
[pid 6255] chdir("./590") = 0
[pid 6255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6255] setpgid(0, 0) = 0
[pid 6255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6255] write(3, "1000", 4) = 4
[pid 6255] close(3) = 0
[pid 6255] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6255] memfd_create("syzkaller", 0) = 3
[pid 6255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6255] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6255] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6255] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6255] close(3) = 0
[pid 6255] mkdir("./file0", 0777) = 0
[pid 6255] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6255] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6255] chdir("./file0") = 0
[pid 6255] ioctl(4, LOOP_CLR_FD) = 0
[ 266.822537][ T6255] loop0: detected capacity change from 0 to 4096
[ 266.839208][ T6255] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 266.847335][ T6255] NILFS (loop0): trying rollback from an earlier position
[ 266.860874][ T6255] NILFS (loop0): recovery complete
[pid 6255] close(4) = 0
[pid 6255] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6255] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 266.866937][ T6256] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 266.875917][ T27] audit: type=1800 audit(1676306954.628:592): pid=6255 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6255] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6255] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6255] exit_group(0) = ?
[pid 6255] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6255, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./590", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./590", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./590/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./590/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./590/binderfs") = 0
umount2("./590/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./590/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./590/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./590/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./590/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./590/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./590") = 0
mkdir("./591", 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=0x555555db65d0) = 6257
./strace-static-x86_64: Process 6257 attached
[pid 6257] chdir("./591") = 0
[pid 6257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6257] setpgid(0, 0) = 0
[pid 6257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6257] write(3, "1000", 4) = 4
[pid 6257] close(3) = 0
[pid 6257] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6257] memfd_create("syzkaller", 0) = 3
[pid 6257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6257] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6257] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6257] close(3) = 0
[pid 6257] mkdir("./file0", 0777) = 0
[ 267.166812][ T6257] loop0: detected capacity change from 0 to 4096
[ 267.183072][ T6257] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 267.191127][ T6257] NILFS (loop0): trying rollback from an earlier position
[ 267.204702][ T6257] NILFS (loop0): recovery complete
[pid 6257] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6257] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6257] chdir("./file0") = 0
[pid 6257] ioctl(4, LOOP_CLR_FD) = 0
[pid 6257] close(4) = 0
[pid 6257] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6257] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 267.210996][ T6258] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6257] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6257] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6257] exit_group(0) = ?
[pid 6257] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6257, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./591", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./591", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./591/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./591/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./591/binderfs") = 0
umount2("./591/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./591/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./591/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./591/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./591/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./591/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./591") = 0
mkdir("./592", 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=0x555555db65d0) = 6259
./strace-static-x86_64: Process 6259 attached
[pid 6259] chdir("./592") = 0
[pid 6259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6259] setpgid(0, 0) = 0
[pid 6259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6259] write(3, "1000", 4) = 4
[pid 6259] close(3) = 0
[pid 6259] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6259] memfd_create("syzkaller", 0) = 3
[pid 6259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6259] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6259] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6259] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6259] close(3) = 0
[pid 6259] mkdir("./file0", 0777) = 0
[pid 6259] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6259] chdir("./file0") = 0
[pid 6259] ioctl(4, LOOP_CLR_FD) = 0
[ 267.471754][ T6259] loop0: detected capacity change from 0 to 4096
[ 267.486971][ T6259] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 267.494974][ T6259] NILFS (loop0): trying rollback from an earlier position
[ 267.511171][ T6259] NILFS (loop0): recovery complete
[pid 6259] close(4) = 0
[pid 6259] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6259] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 267.517238][ T6260] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6259] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6259] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6259] exit_group(0) = ?
[pid 6259] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6259, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./592", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./592", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./592/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./592/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./592/binderfs") = 0
umount2("./592/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./592/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./592/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./592/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./592/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./592/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./592") = 0
mkdir("./593", 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=0x555555db65d0) = 6261
./strace-static-x86_64: Process 6261 attached
[pid 6261] chdir("./593") = 0
[pid 6261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6261] setpgid(0, 0) = 0
[pid 6261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6261] write(3, "1000", 4) = 4
[pid 6261] close(3) = 0
[pid 6261] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6261] memfd_create("syzkaller", 0) = 3
[pid 6261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6261] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6261] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6261] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6261] close(3) = 0
[pid 6261] mkdir("./file0", 0777) = 0
[pid 6261] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6261] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6261] chdir("./file0") = 0
[pid 6261] ioctl(4, LOOP_CLR_FD) = 0
[ 267.780524][ T6261] loop0: detected capacity change from 0 to 4096
[ 267.797735][ T6261] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 267.805786][ T6261] NILFS (loop0): trying rollback from an earlier position
[ 267.819577][ T6261] NILFS (loop0): recovery complete
[pid 6261] close(4) = 0
[pid 6261] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6261] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 267.826407][ T6262] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6261] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6261] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6261] exit_group(0) = ?
[pid 6261] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6261, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./593", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./593", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./593/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./593/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./593/binderfs") = 0
umount2("./593/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./593/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./593/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./593/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./593/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./593/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./593") = 0
mkdir("./594", 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=0x555555db65d0) = 6263
./strace-static-x86_64: Process 6263 attached
[pid 6263] chdir("./594") = 0
[pid 6263] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6263] setpgid(0, 0) = 0
[pid 6263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6263] write(3, "1000", 4) = 4
[pid 6263] close(3) = 0
[pid 6263] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6263] memfd_create("syzkaller", 0) = 3
[pid 6263] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6263] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6263] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6263] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6263] close(3) = 0
[pid 6263] mkdir("./file0", 0777) = 0
[ 268.102351][ T6263] loop0: detected capacity change from 0 to 4096
[ 268.118341][ T6263] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 268.126381][ T6263] NILFS (loop0): trying rollback from an earlier position
[ 268.139992][ T6263] NILFS (loop0): recovery complete
[pid 6263] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6263] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6263] chdir("./file0") = 0
[pid 6263] ioctl(4, LOOP_CLR_FD) = 0
[pid 6263] close(4) = 0
[pid 6263] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6263] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 268.146003][ T6264] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6263] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6263] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6263] exit_group(0) = ?
[pid 6263] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6263, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./594", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./594", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./594/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./594/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./594/binderfs") = 0
umount2("./594/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./594/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./594/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./594/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./594/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./594/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./594") = 0
mkdir("./595", 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=0x555555db65d0) = 6265
./strace-static-x86_64: Process 6265 attached
[pid 6265] chdir("./595") = 0
[pid 6265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6265] setpgid(0, 0) = 0
[pid 6265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6265] write(3, "1000", 4) = 4
[pid 6265] close(3) = 0
[pid 6265] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6265] memfd_create("syzkaller", 0) = 3
[pid 6265] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6265] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6265] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6265] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6265] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6265] close(3) = 0
[pid 6265] mkdir("./file0", 0777) = 0
[pid 6265] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6265] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6265] chdir("./file0") = 0
[pid 6265] ioctl(4, LOOP_CLR_FD) = 0
[pid 6265] close(4) = 0
[pid 6265] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6265] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 268.429568][ T6265] loop0: detected capacity change from 0 to 4096
[ 268.444651][ T6265] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 268.452740][ T6265] NILFS (loop0): trying rollback from an earlier position
[ 268.465676][ T6265] NILFS (loop0): recovery complete
[ 268.486751][ T6266] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6265] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6265] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6265] exit_group(0) = ?
[pid 6265] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6265, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./595", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./595", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./595/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./595/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./595/binderfs") = 0
umount2("./595/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./595/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./595/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./595/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./595/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./595/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./595") = 0
mkdir("./596", 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=0x555555db65d0) = 6267
./strace-static-x86_64: Process 6267 attached
[pid 6267] chdir("./596") = 0
[pid 6267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6267] setpgid(0, 0) = 0
[pid 6267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6267] write(3, "1000", 4) = 4
[pid 6267] close(3) = 0
[pid 6267] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6267] memfd_create("syzkaller", 0) = 3
[pid 6267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6267] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6267] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6267] close(3) = 0
[pid 6267] mkdir("./file0", 0777) = 0
[pid 6267] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6267] chdir("./file0") = 0
[ 268.752224][ T6267] loop0: detected capacity change from 0 to 4096
[ 268.769028][ T6267] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 268.777112][ T6267] NILFS (loop0): trying rollback from an earlier position
[ 268.790824][ T6267] NILFS (loop0): recovery complete
[pid 6267] ioctl(4, LOOP_CLR_FD) = 0
[pid 6267] close(4) = 0
[pid 6267] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6267] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 268.796757][ T6268] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 268.810415][ T27] kauditd_printk_skb: 5 callbacks suppressed
[ 268.810427][ T27] audit: type=1800 audit(1676306956.568:598): pid=6267 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6267] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6267] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6267] exit_group(0) = ?
[pid 6267] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6267, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./596", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./596", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./596/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./596/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./596/binderfs") = 0
umount2("./596/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./596/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./596/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./596/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./596/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./596/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./596") = 0
mkdir("./597", 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=0x555555db65d0) = 6269
./strace-static-x86_64: Process 6269 attached
[pid 6269] chdir("./597") = 0
[pid 6269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6269] setpgid(0, 0) = 0
[pid 6269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6269] write(3, "1000", 4) = 4
[pid 6269] close(3) = 0
[pid 6269] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6269] memfd_create("syzkaller", 0) = 3
[pid 6269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6269] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6269] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6269] close(3) = 0
[pid 6269] mkdir("./file0", 0777) = 0
[pid 6269] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6269] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6269] chdir("./file0") = 0
[pid 6269] ioctl(4, LOOP_CLR_FD) = 0
[pid 6269] close(4) = 0
[ 269.092202][ T6269] loop0: detected capacity change from 0 to 4096
[ 269.108443][ T6269] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 269.116500][ T6269] NILFS (loop0): trying rollback from an earlier position
[ 269.129537][ T6269] NILFS (loop0): recovery complete
[pid 6269] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6269] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 269.135268][ T6270] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 269.159243][ T27] audit: type=1800 audit(1676306956.888:599): pid=6269 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6269] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6269] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6269] exit_group(0) = ?
[pid 6269] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6269, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./597", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./597", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./597/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./597/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./597/binderfs") = 0
umount2("./597/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./597/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./597/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./597/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./597/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./597/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./597") = 0
mkdir("./598", 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=0x555555db65d0) = 6271
./strace-static-x86_64: Process 6271 attached
[pid 6271] chdir("./598") = 0
[pid 6271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6271] setpgid(0, 0) = 0
[pid 6271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6271] write(3, "1000", 4) = 4
[pid 6271] close(3) = 0
[pid 6271] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6271] memfd_create("syzkaller", 0) = 3
[pid 6271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6271] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6271] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6271] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6271] close(3) = 0
[pid 6271] mkdir("./file0", 0777) = 0
[pid 6271] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6271] chdir("./file0") = 0
[pid 6271] ioctl(4, LOOP_CLR_FD) = 0
[ 269.420521][ T6271] loop0: detected capacity change from 0 to 4096
[ 269.436840][ T6271] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 269.444915][ T6271] NILFS (loop0): trying rollback from an earlier position
[ 269.458567][ T6271] NILFS (loop0): recovery complete
[pid 6271] close(4) = 0
[pid 6271] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6271] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 269.464859][ T6272] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 269.478015][ T27] audit: type=1800 audit(1676306957.238:600): pid=6271 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6271] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6271] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6271] exit_group(0) = ?
[pid 6271] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6271, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./598", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./598", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./598/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./598/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./598/binderfs") = 0
umount2("./598/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./598/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./598/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./598/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./598/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./598/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./598") = 0
mkdir("./599", 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=0x555555db65d0) = 6273
./strace-static-x86_64: Process 6273 attached
[pid 6273] chdir("./599") = 0
[pid 6273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6273] setpgid(0, 0) = 0
[pid 6273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6273] write(3, "1000", 4) = 4
[pid 6273] close(3) = 0
[pid 6273] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6273] memfd_create("syzkaller", 0) = 3
[pid 6273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6273] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6273] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6273] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6273] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6273] close(3) = 0
[pid 6273] mkdir("./file0", 0777) = 0
[pid 6273] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6273] chdir("./file0") = 0
[pid 6273] ioctl(4, LOOP_CLR_FD) = 0
[ 269.740685][ T6273] loop0: detected capacity change from 0 to 4096
[ 269.756612][ T6273] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 269.764630][ T6273] NILFS (loop0): trying rollback from an earlier position
[ 269.778358][ T6273] NILFS (loop0): recovery complete
[pid 6273] close(4) = 0
[pid 6273] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6273] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 269.784272][ T6274] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 269.799145][ T27] audit: type=1800 audit(1676306957.558:601): pid=6273 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6273] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6273] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6273] exit_group(0) = ?
[pid 6273] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6273, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./599", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./599", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./599/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./599/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./599/binderfs") = 0
umount2("./599/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./599/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./599/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./599/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./599/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./599/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./599") = 0
mkdir("./600", 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=0x555555db65d0) = 6275
./strace-static-x86_64: Process 6275 attached
[pid 6275] chdir("./600") = 0
[pid 6275] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6275] setpgid(0, 0) = 0
[pid 6275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6275] write(3, "1000", 4) = 4
[pid 6275] close(3) = 0
[pid 6275] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6275] memfd_create("syzkaller", 0) = 3
[pid 6275] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6275] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6275] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6275] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6275] close(3) = 0
[pid 6275] mkdir("./file0", 0777) = 0
[ 270.077516][ T6275] loop0: detected capacity change from 0 to 4096
[ 270.093442][ T6275] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 270.101541][ T6275] NILFS (loop0): trying rollback from an earlier position
[ 270.115248][ T6275] NILFS (loop0): recovery complete
[pid 6275] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6275] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6275] chdir("./file0") = 0
[pid 6275] ioctl(4, LOOP_CLR_FD) = 0
[pid 6275] close(4) = 0
[pid 6275] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6275] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 270.121004][ T6276] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 270.136262][ T27] audit: type=1800 audit(1676306957.878:602): pid=6275 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6275] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6275] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6275] exit_group(0) = ?
[pid 6275] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6275, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./600", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./600", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./600/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./600/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./600/binderfs") = 0
umount2("./600/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./600/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./600/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./600/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./600/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./600/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./600") = 0
mkdir("./601", 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=0x555555db65d0) = 6277
./strace-static-x86_64: Process 6277 attached
[pid 6277] chdir("./601") = 0
[pid 6277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6277] setpgid(0, 0) = 0
[pid 6277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6277] write(3, "1000", 4) = 4
[pid 6277] close(3) = 0
[pid 6277] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6277] memfd_create("syzkaller", 0) = 3
[pid 6277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6277] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6277] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6277] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6277] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6277] close(3) = 0
[pid 6277] mkdir("./file0", 0777) = 0
[pid 6277] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6277] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6277] chdir("./file0") = 0
[pid 6277] ioctl(4, LOOP_CLR_FD) = 0
[ 270.387567][ T6277] loop0: detected capacity change from 0 to 4096
[ 270.403487][ T6277] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 270.411562][ T6277] NILFS (loop0): trying rollback from an earlier position
[ 270.424414][ T6277] NILFS (loop0): recovery complete
[pid 6277] close(4) = 0
[pid 6277] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6277] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 270.430989][ T6278] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 270.444312][ T27] audit: type=1800 audit(1676306958.208:603): pid=6277 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6277] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6277] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6277] exit_group(0) = ?
[pid 6277] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6277, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./601", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./601", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./601/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./601/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./601/binderfs") = 0
umount2("./601/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./601/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./601/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./601/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./601/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./601/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./601") = 0
mkdir("./602", 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=0x555555db65d0) = 6279
./strace-static-x86_64: Process 6279 attached
[pid 6279] chdir("./602") = 0
[pid 6279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6279] setpgid(0, 0) = 0
[pid 6279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6279] write(3, "1000", 4) = 4
[pid 6279] close(3) = 0
[pid 6279] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6279] memfd_create("syzkaller", 0) = 3
[pid 6279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6279] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6279] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6279] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6279] close(3) = 0
[pid 6279] mkdir("./file0", 0777) = 0
[pid 6279] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6279] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6279] chdir("./file0") = 0
[pid 6279] ioctl(4, LOOP_CLR_FD) = 0
[ 270.708257][ T6279] loop0: detected capacity change from 0 to 4096
[ 270.723580][ T6279] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 270.731867][ T6279] NILFS (loop0): trying rollback from an earlier position
[ 270.745574][ T6279] NILFS (loop0): recovery complete
[pid 6279] close(4) = 0
[pid 6279] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6279] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 270.751563][ T6280] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 270.765377][ T27] audit: type=1800 audit(1676306958.528:604): pid=6279 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6279] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6279] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6279] exit_group(0) = ?
[pid 6279] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6279, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./602", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./602", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./602/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./602/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./602/binderfs") = 0
umount2("./602/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./602/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./602/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./602/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./602/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./602/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./602") = 0
mkdir("./603", 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=0x555555db65d0) = 6281
./strace-static-x86_64: Process 6281 attached
[pid 6281] chdir("./603") = 0
[pid 6281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6281] setpgid(0, 0) = 0
[pid 6281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6281] write(3, "1000", 4) = 4
[pid 6281] close(3) = 0
[pid 6281] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6281] memfd_create("syzkaller", 0) = 3
[pid 6281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6281] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6281] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6281] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6281] close(3) = 0
[pid 6281] mkdir("./file0", 0777) = 0
[pid 6281] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6281] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6281] chdir("./file0") = 0
[pid 6281] ioctl(4, LOOP_CLR_FD) = 0
[pid 6281] close(4) = 0
[ 271.036876][ T6281] loop0: detected capacity change from 0 to 4096
[ 271.052019][ T6281] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 271.060099][ T6281] NILFS (loop0): trying rollback from an earlier position
[ 271.073588][ T6281] NILFS (loop0): recovery complete
[pid 6281] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6281] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 271.079642][ T6282] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 271.096395][ T27] audit: type=1800 audit(1676306958.838:605): pid=6281 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6281] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6281] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6281] exit_group(0) = ?
[pid 6281] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6281, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./603", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./603", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./603/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./603/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./603/binderfs") = 0
umount2("./603/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./603/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./603/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./603/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./603/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./603/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./603") = 0
mkdir("./604", 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=0x555555db65d0) = 6283
./strace-static-x86_64: Process 6283 attached
[pid 6283] chdir("./604") = 0
[pid 6283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6283] setpgid(0, 0) = 0
[pid 6283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6283] write(3, "1000", 4) = 4
[pid 6283] close(3) = 0
[pid 6283] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6283] memfd_create("syzkaller", 0) = 3
[pid 6283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6283] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6283] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6283] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6283] close(3) = 0
[pid 6283] mkdir("./file0", 0777) = 0
[ 271.367587][ T6283] loop0: detected capacity change from 0 to 4096
[ 271.384465][ T6283] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 271.392524][ T6283] NILFS (loop0): trying rollback from an earlier position
[ 271.406335][ T6283] NILFS (loop0): recovery complete
[pid 6283] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6283] chdir("./file0") = 0
[pid 6283] ioctl(4, LOOP_CLR_FD) = 0
[pid 6283] close(4) = 0
[pid 6283] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6283] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 271.412093][ T6284] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 271.426240][ T27] audit: type=1800 audit(1676306959.178:606): pid=6283 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6283] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6283] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6283] exit_group(0) = ?
[pid 6283] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6283, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./604", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./604", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./604/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./604/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./604/binderfs") = 0
umount2("./604/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./604/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./604/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./604/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./604/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./604/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./604") = 0
mkdir("./605", 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=0x555555db65d0) = 6285
./strace-static-x86_64: Process 6285 attached
[pid 6285] chdir("./605") = 0
[pid 6285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6285] setpgid(0, 0) = 0
[pid 6285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6285] write(3, "1000", 4) = 4
[pid 6285] close(3) = 0
[pid 6285] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6285] memfd_create("syzkaller", 0) = 3
[pid 6285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6285] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6285] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6285] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6285] close(3) = 0
[pid 6285] mkdir("./file0", 0777) = 0
[pid 6285] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6285] chdir("./file0") = 0
[ 271.690374][ T6285] loop0: detected capacity change from 0 to 4096
[ 271.705173][ T6285] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 271.713265][ T6285] NILFS (loop0): trying rollback from an earlier position
[ 271.727093][ T6285] NILFS (loop0): recovery complete
[pid 6285] ioctl(4, LOOP_CLR_FD) = 0
[pid 6285] close(4) = 0
[pid 6285] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6285] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 271.732826][ T6286] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 271.746197][ T27] audit: type=1800 audit(1676306959.508:607): pid=6285 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6285] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6285] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6285] exit_group(0) = ?
[pid 6285] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6285, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./605", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./605", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./605/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./605/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./605/binderfs") = 0
umount2("./605/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./605/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./605/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./605/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./605/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./605/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./605") = 0
mkdir("./606", 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=0x555555db65d0) = 6287
./strace-static-x86_64: Process 6287 attached
[pid 6287] chdir("./606") = 0
[pid 6287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6287] setpgid(0, 0) = 0
[pid 6287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6287] write(3, "1000", 4) = 4
[pid 6287] close(3) = 0
[pid 6287] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6287] memfd_create("syzkaller", 0) = 3
[pid 6287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6287] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6287] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6287] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6287] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6287] close(3) = 0
[pid 6287] mkdir("./file0", 0777) = 0
[pid 6287] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6287] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6287] chdir("./file0") = 0
[pid 6287] ioctl(4, LOOP_CLR_FD) = 0
[ 272.030873][ T6287] loop0: detected capacity change from 0 to 4096
[ 272.046590][ T6287] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 272.054679][ T6287] NILFS (loop0): trying rollback from an earlier position
[ 272.068154][ T6287] NILFS (loop0): recovery complete
[pid 6287] close(4) = 0
[pid 6287] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6287] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 272.074360][ T6288] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6287] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6287] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6287] exit_group(0) = ?
[pid 6287] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6287, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./606", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./606", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./606/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./606/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./606/binderfs") = 0
umount2("./606/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./606/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./606/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./606/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./606/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./606/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./606") = 0
mkdir("./607", 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=0x555555db65d0) = 6289
./strace-static-x86_64: Process 6289 attached
[pid 6289] chdir("./607") = 0
[pid 6289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6289] setpgid(0, 0) = 0
[pid 6289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6289] write(3, "1000", 4) = 4
[pid 6289] close(3) = 0
[pid 6289] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6289] memfd_create("syzkaller", 0) = 3
[pid 6289] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6289] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6289] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6289] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6289] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6289] close(3) = 0
[pid 6289] mkdir("./file0", 0777) = 0
[pid 6289] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6289] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6289] chdir("./file0") = 0
[pid 6289] ioctl(4, LOOP_CLR_FD) = 0
[pid 6289] close(4) = 0
[ 272.358411][ T6289] loop0: detected capacity change from 0 to 4096
[ 272.374004][ T6289] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 272.382068][ T6289] NILFS (loop0): trying rollback from an earlier position
[ 272.395885][ T6289] NILFS (loop0): recovery complete
[pid 6289] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6289] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 272.406402][ T6290] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6289] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6289] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6289] exit_group(0) = ?
[pid 6289] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6289, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./607", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./607", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./607/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./607/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./607/binderfs") = 0
umount2("./607/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./607/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./607/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./607/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./607/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./607/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./607") = 0
mkdir("./608", 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=0x555555db65d0) = 6291
./strace-static-x86_64: Process 6291 attached
[pid 6291] chdir("./608") = 0
[pid 6291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6291] setpgid(0, 0) = 0
[pid 6291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6291] write(3, "1000", 4) = 4
[pid 6291] close(3) = 0
[pid 6291] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6291] memfd_create("syzkaller", 0) = 3
[pid 6291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6291] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6291] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6291] close(3) = 0
[pid 6291] mkdir("./file0", 0777) = 0
[pid 6291] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6291] chdir("./file0") = 0
[pid 6291] ioctl(4, LOOP_CLR_FD) = 0
[ 272.681809][ T6291] loop0: detected capacity change from 0 to 4096
[ 272.696577][ T6291] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 272.704601][ T6291] NILFS (loop0): trying rollback from an earlier position
[ 272.718530][ T6291] NILFS (loop0): recovery complete
[pid 6291] close(4) = 0
[pid 6291] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6291] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 272.724856][ T6292] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6291] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6291] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6291] exit_group(0) = ?
[pid 6291] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6291, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./608", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./608", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./608/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./608/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./608/binderfs") = 0
umount2("./608/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./608/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./608/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./608/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./608/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./608/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./608") = 0
mkdir("./609", 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=0x555555db65d0) = 6293
./strace-static-x86_64: Process 6293 attached
[pid 6293] chdir("./609") = 0
[pid 6293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6293] setpgid(0, 0) = 0
[pid 6293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6293] write(3, "1000", 4) = 4
[pid 6293] close(3) = 0
[pid 6293] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6293] memfd_create("syzkaller", 0) = 3
[pid 6293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6293] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6293] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6293] close(3) = 0
[pid 6293] mkdir("./file0", 0777) = 0
[pid 6293] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6293] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6293] chdir("./file0") = 0
[pid 6293] ioctl(4, LOOP_CLR_FD) = 0
[ 272.993612][ T6293] loop0: detected capacity change from 0 to 4096
[ 273.010106][ T6293] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 273.018192][ T6293] NILFS (loop0): trying rollback from an earlier position
[ 273.031633][ T6293] NILFS (loop0): recovery complete
[pid 6293] close(4) = 0
[pid 6293] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6293] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 273.037947][ T6294] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6293] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6293] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6293] exit_group(0) = ?
[pid 6293] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6293, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./609", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./609", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./609/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./609/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./609/binderfs") = 0
umount2("./609/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./609/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./609/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./609/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./609/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./609/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./609") = 0
mkdir("./610", 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=0x555555db65d0) = 6295
./strace-static-x86_64: Process 6295 attached
[pid 6295] chdir("./610") = 0
[pid 6295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6295] setpgid(0, 0) = 0
[pid 6295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6295] write(3, "1000", 4) = 4
[pid 6295] close(3) = 0
[pid 6295] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6295] memfd_create("syzkaller", 0) = 3
[pid 6295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6295] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6295] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6295] close(3) = 0
[pid 6295] mkdir("./file0", 0777) = 0
[ 273.301249][ T6295] loop0: detected capacity change from 0 to 4096
[ 273.316423][ T6295] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 273.324441][ T6295] NILFS (loop0): trying rollback from an earlier position
[ 273.338519][ T6295] NILFS (loop0): recovery complete
[pid 6295] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6295] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6295] chdir("./file0") = 0
[pid 6295] ioctl(4, LOOP_CLR_FD) = 0
[pid 6295] close(4) = 0
[pid 6295] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6295] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 273.344932][ T6296] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6295] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6295] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6295] exit_group(0) = ?
[pid 6295] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6295, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./610", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./610", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./610/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./610/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./610/binderfs") = 0
umount2("./610/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./610/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./610/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./610/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./610/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./610/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./610") = 0
mkdir("./611", 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=0x555555db65d0) = 6297
./strace-static-x86_64: Process 6297 attached
[pid 6297] chdir("./611") = 0
[pid 6297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6297] setpgid(0, 0) = 0
[pid 6297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6297] write(3, "1000", 4) = 4
[pid 6297] close(3) = 0
[pid 6297] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6297] memfd_create("syzkaller", 0) = 3
[pid 6297] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6297] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6297] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6297] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6297] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6297] close(3) = 0
[pid 6297] mkdir("./file0", 0777) = 0
[ 273.617153][ T6297] loop0: detected capacity change from 0 to 4096
[ 273.632640][ T6297] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 273.640705][ T6297] NILFS (loop0): trying rollback from an earlier position
[ 273.654542][ T6297] NILFS (loop0): recovery complete
[pid 6297] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6297] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6297] chdir("./file0") = 0
[pid 6297] ioctl(4, LOOP_CLR_FD) = 0
[pid 6297] close(4) = 0
[pid 6297] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6297] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 273.660487][ T6298] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6297] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6297] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6297] exit_group(0) = ?
[pid 6297] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6297, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./611", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./611", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./611/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./611/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./611/binderfs") = 0
umount2("./611/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./611/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./611/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./611/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./611/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./611/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./611") = 0
mkdir("./612", 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=0x555555db65d0) = 6299
./strace-static-x86_64: Process 6299 attached
[pid 6299] chdir("./612") = 0
[pid 6299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6299] setpgid(0, 0) = 0
[pid 6299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6299] write(3, "1000", 4) = 4
[pid 6299] close(3) = 0
[pid 6299] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6299] memfd_create("syzkaller", 0) = 3
[pid 6299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6299] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6299] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6299] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6299] close(3) = 0
[pid 6299] mkdir("./file0", 0777) = 0
[pid 6299] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 273.923916][ T6299] loop0: detected capacity change from 0 to 4096
[ 273.940826][ T6299] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 273.949140][ T6299] NILFS (loop0): trying rollback from an earlier position
[ 273.963173][ T6299] NILFS (loop0): recovery complete
[pid 6299] chdir("./file0") = 0
[pid 6299] ioctl(4, LOOP_CLR_FD) = 0
[pid 6299] close(4) = 0
[pid 6299] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6299] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 273.969444][ T6300] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 273.982427][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 273.982440][ T27] audit: type=1800 audit(1676306961.748:614): pid=6299 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6299] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6299] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6299] exit_group(0) = ?
[pid 6299] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6299, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./612", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./612", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./612/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./612/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./612/binderfs") = 0
umount2("./612/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./612/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./612/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./612/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./612/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./612/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./612") = 0
mkdir("./613", 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=0x555555db65d0) = 6301
./strace-static-x86_64: Process 6301 attached
[pid 6301] chdir("./613") = 0
[pid 6301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6301] setpgid(0, 0) = 0
[pid 6301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6301] write(3, "1000", 4) = 4
[pid 6301] close(3) = 0
[pid 6301] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6301] memfd_create("syzkaller", 0) = 3
[pid 6301] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6301] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6301] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6301] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6301] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6301] close(3) = 0
[pid 6301] mkdir("./file0", 0777) = 0
[ 274.263782][ T6301] loop0: detected capacity change from 0 to 4096
[ 274.281208][ T6301] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 274.289266][ T6301] NILFS (loop0): trying rollback from an earlier position
[ 274.303363][ T6301] NILFS (loop0): recovery complete
[pid 6301] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6301] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6301] chdir("./file0") = 0
[pid 6301] ioctl(4, LOOP_CLR_FD) = 0
[pid 6301] close(4) = 0
[pid 6301] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6301] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 274.309434][ T6302] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 274.322016][ T27] audit: type=1800 audit(1676306962.078:615): pid=6301 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6301] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6301] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6301] exit_group(0) = ?
[pid 6301] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6301, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./613", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./613", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./613/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./613/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./613/binderfs") = 0
umount2("./613/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./613/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./613/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./613/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./613/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./613/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./613") = 0
mkdir("./614", 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=0x555555db65d0) = 6303
./strace-static-x86_64: Process 6303 attached
[pid 6303] chdir("./614") = 0
[pid 6303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6303] setpgid(0, 0) = 0
[pid 6303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6303] write(3, "1000", 4) = 4
[pid 6303] close(3) = 0
[pid 6303] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6303] memfd_create("syzkaller", 0) = 3
[pid 6303] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6303] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6303] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6303] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6303] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6303] close(3) = 0
[pid 6303] mkdir("./file0", 0777) = 0
[ 274.608350][ T6303] loop0: detected capacity change from 0 to 4096
[ 274.623969][ T6303] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 274.632027][ T6303] NILFS (loop0): trying rollback from an earlier position
[ 274.645419][ T6303] NILFS (loop0): recovery complete
[pid 6303] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6303] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6303] chdir("./file0") = 0
[pid 6303] ioctl(4, LOOP_CLR_FD) = 0
[pid 6303] close(4) = 0
[pid 6303] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6303] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 274.651526][ T6304] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 274.665438][ T27] audit: type=1800 audit(1676306962.418:616): pid=6303 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6303] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6303] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6303] exit_group(0) = ?
[pid 6303] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6303, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./614", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./614", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./614/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./614/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./614/binderfs") = 0
umount2("./614/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./614/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./614/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./614/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./614/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./614/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./614") = 0
mkdir("./615", 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=0x555555db65d0) = 6305
./strace-static-x86_64: Process 6305 attached
[pid 6305] chdir("./615") = 0
[pid 6305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6305] setpgid(0, 0) = 0
[pid 6305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6305] write(3, "1000", 4) = 4
[pid 6305] close(3) = 0
[pid 6305] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6305] memfd_create("syzkaller", 0) = 3
[pid 6305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6305] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6305] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6305] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6305] close(3) = 0
[pid 6305] mkdir("./file0", 0777) = 0
[ 274.930214][ T6305] loop0: detected capacity change from 0 to 4096
[ 274.947030][ T6305] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 274.955135][ T6305] NILFS (loop0): trying rollback from an earlier position
[ 274.969280][ T6305] NILFS (loop0): recovery complete
[pid 6305] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6305] chdir("./file0") = 0
[pid 6305] ioctl(4, LOOP_CLR_FD) = 0
[pid 6305] close(4) = 0
[pid 6305] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6305] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 274.975414][ T6306] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 274.988748][ T27] audit: type=1800 audit(1676306962.748:617): pid=6305 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6305] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6305] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6305] exit_group(0) = ?
[pid 6305] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6305, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
umount2("./615", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./615", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./615/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./615/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./615/binderfs") = 0
umount2("./615/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./615/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./615/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./615/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./615/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./615/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./615") = 0
mkdir("./616", 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=0x555555db65d0) = 6307
./strace-static-x86_64: Process 6307 attached
[pid 6307] chdir("./616") = 0
[pid 6307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6307] setpgid(0, 0) = 0
[pid 6307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6307] write(3, "1000", 4) = 4
[pid 6307] close(3) = 0
[pid 6307] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6307] memfd_create("syzkaller", 0) = 3
[pid 6307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6307] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6307] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6307] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6307] close(3) = 0
[pid 6307] mkdir("./file0", 0777) = 0
[ 275.268140][ T6307] loop0: detected capacity change from 0 to 4096
[ 275.286588][ T6307] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 275.294620][ T6307] NILFS (loop0): trying rollback from an earlier position
[ 275.308583][ T6307] NILFS (loop0): recovery complete
[pid 6307] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6307] chdir("./file0") = 0
[pid 6307] ioctl(4, LOOP_CLR_FD) = 0
[pid 6307] close(4) = 0
[pid 6307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6307] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 275.314843][ T6308] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 275.318639][ T27] audit: type=1800 audit(1676306963.078:618): pid=6307 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6307] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6307] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6307] exit_group(0) = ?
[pid 6307] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6307, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./616", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./616", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./616/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./616/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./616/binderfs") = 0
umount2("./616/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./616/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./616/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./616/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./616/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./616/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./616") = 0
mkdir("./617", 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=0x555555db65d0) = 6309
./strace-static-x86_64: Process 6309 attached
[pid 6309] chdir("./617") = 0
[pid 6309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6309] setpgid(0, 0) = 0
[pid 6309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6309] write(3, "1000", 4) = 4
[pid 6309] close(3) = 0
[pid 6309] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6309] memfd_create("syzkaller", 0) = 3
[pid 6309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6309] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6309] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6309] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6309] close(3) = 0
[pid 6309] mkdir("./file0", 0777) = 0
[pid 6309] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[ 275.602812][ T6309] loop0: detected capacity change from 0 to 4096
[ 275.618919][ T6309] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 275.626948][ T6309] NILFS (loop0): trying rollback from an earlier position
[ 275.642494][ T6309] NILFS (loop0): recovery complete
[pid 6309] chdir("./file0") = 0
[pid 6309] ioctl(4, LOOP_CLR_FD) = 0
[pid 6309] close(4) = 0
[pid 6309] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6309] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 275.650864][ T6310] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 275.666127][ T27] audit: type=1800 audit(1676306963.408:619): pid=6309 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6309] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6309] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6309] exit_group(0) = ?
[pid 6309] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6309, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./617", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./617", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./617/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./617/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./617/binderfs") = 0
umount2("./617/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./617/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./617/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./617/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./617/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./617/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./617") = 0
mkdir("./618", 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=0x555555db65d0) = 6311
./strace-static-x86_64: Process 6311 attached
[pid 6311] chdir("./618") = 0
[pid 6311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6311] setpgid(0, 0) = 0
[pid 6311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6311] write(3, "1000", 4) = 4
[pid 6311] close(3) = 0
[pid 6311] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6311] memfd_create("syzkaller", 0) = 3
[pid 6311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6311] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6311] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6311] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6311] close(3) = 0
[pid 6311] mkdir("./file0", 0777) = 0
[ 275.913082][ T6311] loop0: detected capacity change from 0 to 4096
[ 275.928946][ T6311] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 275.936981][ T6311] NILFS (loop0): trying rollback from an earlier position
[ 275.951398][ T6311] NILFS (loop0): recovery complete
[pid 6311] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6311] chdir("./file0") = 0
[pid 6311] ioctl(4, LOOP_CLR_FD) = 0
[pid 6311] close(4) = 0
[pid 6311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6311] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 275.957437][ T6312] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 275.976134][ T27] audit: type=1800 audit(1676306963.718:620): pid=6311 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6311] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6311] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6311] exit_group(0) = ?
[pid 6311] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6311, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./618", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./618", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./618/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./618/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./618/binderfs") = 0
umount2("./618/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./618/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./618/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./618/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./618/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./618/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./618") = 0
mkdir("./619", 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=0x555555db65d0) = 6313
./strace-static-x86_64: Process 6313 attached
[pid 6313] chdir("./619") = 0
[pid 6313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6313] setpgid(0, 0) = 0
[pid 6313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6313] write(3, "1000", 4) = 4
[pid 6313] close(3) = 0
[pid 6313] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6313] memfd_create("syzkaller", 0) = 3
[pid 6313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6313] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6313] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6313] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6313] close(3) = 0
[pid 6313] mkdir("./file0", 0777) = 0
[pid 6313] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6313] chdir("./file0") = 0
[pid 6313] ioctl(4, LOOP_CLR_FD) = 0
[ 276.232929][ T6313] loop0: detected capacity change from 0 to 4096
[ 276.249074][ T6313] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 276.257115][ T6313] NILFS (loop0): trying rollback from an earlier position
[ 276.271432][ T6313] NILFS (loop0): recovery complete
[pid 6313] close(4) = 0
[pid 6313] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6313] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 276.277383][ T6314] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 276.296277][ T27] audit: type=1800 audit(1676306964.048:621): pid=6313 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6313] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6313] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6313] exit_group(0) = ?
[pid 6313] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6313, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./619", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./619", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./619/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./619/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./619/binderfs") = 0
umount2("./619/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./619/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./619/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./619/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./619/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./619/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./619") = 0
mkdir("./620", 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=0x555555db65d0) = 6315
./strace-static-x86_64: Process 6315 attached
[pid 6315] chdir("./620") = 0
[pid 6315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6315] setpgid(0, 0) = 0
[pid 6315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6315] write(3, "1000", 4) = 4
[pid 6315] close(3) = 0
[pid 6315] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6315] memfd_create("syzkaller", 0) = 3
[pid 6315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6315] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6315] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6315] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6315] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6315] close(3) = 0
[pid 6315] mkdir("./file0", 0777) = 0
[ 276.555674][ T6315] loop0: detected capacity change from 0 to 4096
[ 276.573009][ T6315] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 276.581196][ T6315] NILFS (loop0): trying rollback from an earlier position
[ 276.594774][ T6315] NILFS (loop0): recovery complete
[pid 6315] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6315] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6315] chdir("./file0") = 0
[pid 6315] ioctl(4, LOOP_CLR_FD) = 0
[pid 6315] close(4) = 0
[pid 6315] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6315] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 276.600805][ T6316] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 276.614892][ T27] audit: type=1800 audit(1676306964.378:622): pid=6315 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6315] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6315] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6315] exit_group(0) = ?
[pid 6315] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6315, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./620", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./620", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./620/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./620/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./620/binderfs") = 0
umount2("./620/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./620/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./620/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./620/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./620/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./620/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./620") = 0
mkdir("./621", 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=0x555555db65d0) = 6317
./strace-static-x86_64: Process 6317 attached
[pid 6317] chdir("./621") = 0
[pid 6317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6317] setpgid(0, 0) = 0
[pid 6317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6317] write(3, "1000", 4) = 4
[pid 6317] close(3) = 0
[pid 6317] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6317] memfd_create("syzkaller", 0) = 3
[pid 6317] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6317] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6317] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6317] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6317] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6317] close(3) = 0
[pid 6317] mkdir("./file0", 0777) = 0
[ 276.886930][ T6317] loop0: detected capacity change from 0 to 4096
[ 276.903481][ T6317] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 276.911526][ T6317] NILFS (loop0): trying rollback from an earlier position
[ 276.925605][ T6317] NILFS (loop0): recovery complete
[pid 6317] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6317] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6317] chdir("./file0") = 0
[pid 6317] ioctl(4, LOOP_CLR_FD) = 0
[pid 6317] close(4) = 0
[pid 6317] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6317] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 276.931583][ T6318] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 276.948486][ T27] audit: type=1800 audit(1676306964.708:623): pid=6317 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6317] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6317] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6317] exit_group(0) = ?
[pid 6317] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6317, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./621", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./621", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./621/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./621/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./621/binderfs") = 0
umount2("./621/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./621/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./621/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./621/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./621/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./621/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./621") = 0
mkdir("./622", 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=0x555555db65d0) = 6319
./strace-static-x86_64: Process 6319 attached
[pid 6319] chdir("./622") = 0
[pid 6319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6319] setpgid(0, 0) = 0
[pid 6319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6319] write(3, "1000", 4) = 4
[pid 6319] close(3) = 0
[pid 6319] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6319] memfd_create("syzkaller", 0) = 3
[pid 6319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6319] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6319] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6319] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6319] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6319] close(3) = 0
[pid 6319] mkdir("./file0", 0777) = 0
[ 277.217760][ T6319] loop0: detected capacity change from 0 to 4096
[ 277.234466][ T6319] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 277.242517][ T6319] NILFS (loop0): trying rollback from an earlier position
[ 277.256445][ T6319] NILFS (loop0): recovery complete
[pid 6319] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6319] chdir("./file0") = 0
[pid 6319] ioctl(4, LOOP_CLR_FD) = 0
[pid 6319] close(4) = 0
[pid 6319] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6319] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 277.262336][ T6320] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6319] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6319] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6319] exit_group(0) = ?
[pid 6319] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6319, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./622", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./622", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./622/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./622/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./622/binderfs") = 0
umount2("./622/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./622/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./622/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./622/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./622/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./622/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./622") = 0
mkdir("./623", 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=0x555555db65d0) = 6321
./strace-static-x86_64: Process 6321 attached
[pid 6321] chdir("./623") = 0
[pid 6321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6321] setpgid(0, 0) = 0
[pid 6321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6321] write(3, "1000", 4) = 4
[pid 6321] close(3) = 0
[pid 6321] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6321] memfd_create("syzkaller", 0) = 3
[pid 6321] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6321] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6321] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6321] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6321] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6321] close(3) = 0
[pid 6321] mkdir("./file0", 0777) = 0
[pid 6321] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6321] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6321] chdir("./file0") = 0
[pid 6321] ioctl(4, LOOP_CLR_FD) = 0
[ 277.526362][ T6321] loop0: detected capacity change from 0 to 4096
[ 277.542026][ T6321] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 277.550109][ T6321] NILFS (loop0): trying rollback from an earlier position
[ 277.562910][ T6321] NILFS (loop0): recovery complete
[pid 6321] close(4) = 0
[pid 6321] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6321] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 277.568861][ T6322] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6321] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6321] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6321] exit_group(0) = ?
[pid 6321] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6321, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./623", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./623", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./623/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./623/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./623/binderfs") = 0
umount2("./623/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./623/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./623/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./623/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./623/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./623/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./623") = 0
mkdir("./624", 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=0x555555db65d0) = 6323
./strace-static-x86_64: Process 6323 attached
[pid 6323] chdir("./624") = 0
[pid 6323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6323] setpgid(0, 0) = 0
[pid 6323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6323] write(3, "1000", 4) = 4
[pid 6323] close(3) = 0
[pid 6323] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6323] memfd_create("syzkaller", 0) = 3
[pid 6323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6323] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6323] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6323] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6323] close(3) = 0
[pid 6323] mkdir("./file0", 0777) = 0
[pid 6323] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6323] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6323] chdir("./file0") = 0
[pid 6323] ioctl(4, LOOP_CLR_FD) = 0
[pid 6323] close(4) = 0
[pid 6323] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[ 277.852037][ T6323] loop0: detected capacity change from 0 to 4096
[ 277.868002][ T6323] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 277.876025][ T6323] NILFS (loop0): trying rollback from an earlier position
[ 277.889746][ T6323] NILFS (loop0): recovery complete
[pid 6323] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 277.895496][ T6324] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6323] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6323] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6323] exit_group(0) = ?
[pid 6323] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6323, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
umount2("./624", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./624", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./624/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./624/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./624/binderfs") = 0
umount2("./624/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./624/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./624/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./624/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./624/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./624/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./624") = 0
mkdir("./625", 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=0x555555db65d0) = 6325
./strace-static-x86_64: Process 6325 attached
[pid 6325] chdir("./625") = 0
[pid 6325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6325] setpgid(0, 0) = 0
[pid 6325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6325] write(3, "1000", 4) = 4
[pid 6325] close(3) = 0
[pid 6325] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6325] memfd_create("syzkaller", 0) = 3
[pid 6325] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6325] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6325] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6325] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6325] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6325] close(3) = 0
[pid 6325] mkdir("./file0", 0777) = 0
[pid 6325] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 278.170674][ T6325] loop0: detected capacity change from 0 to 4096
[ 278.185639][ T6325] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 278.193976][ T6325] NILFS (loop0): trying rollback from an earlier position
[ 278.207668][ T6325] NILFS (loop0): recovery complete
[pid 6325] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6325] chdir("./file0") = 0
[pid 6325] ioctl(4, LOOP_CLR_FD) = 0
[pid 6325] close(4) = 0
[pid 6325] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6325] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 278.213505][ T6326] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6325] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6325] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6325] exit_group(0) = ?
[pid 6325] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6325, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./625", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./625", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./625/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./625/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./625/binderfs") = 0
umount2("./625/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./625/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./625/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./625/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./625/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./625/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./625") = 0
mkdir("./626", 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=0x555555db65d0) = 6327
./strace-static-x86_64: Process 6327 attached
[pid 6327] chdir("./626") = 0
[pid 6327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6327] setpgid(0, 0) = 0
[pid 6327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6327] write(3, "1000", 4) = 4
[pid 6327] close(3) = 0
[pid 6327] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6327] memfd_create("syzkaller", 0) = 3
[pid 6327] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6327] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6327] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6327] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6327] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6327] close(3) = 0
[pid 6327] mkdir("./file0", 0777) = 0
[pid 6327] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6327] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6327] chdir("./file0") = 0
[pid 6327] ioctl(4, LOOP_CLR_FD) = 0
[ 278.499836][ T6327] loop0: detected capacity change from 0 to 4096
[ 278.515485][ T6327] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 278.523566][ T6327] NILFS (loop0): trying rollback from an earlier position
[ 278.537310][ T6327] NILFS (loop0): recovery complete
[pid 6327] close(4) = 0
[pid 6327] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6327] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 278.542994][ T6328] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6327] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6327] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6327] exit_group(0) = ?
[pid 6327] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6327, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
umount2("./626", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./626", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./626/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./626/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./626/binderfs") = 0
umount2("./626/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./626/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./626/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./626/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./626/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./626/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./626") = 0
mkdir("./627", 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=0x555555db65d0) = 6329
./strace-static-x86_64: Process 6329 attached
[pid 6329] chdir("./627") = 0
[pid 6329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6329] setpgid(0, 0) = 0
[pid 6329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6329] write(3, "1000", 4) = 4
[pid 6329] close(3) = 0
[pid 6329] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6329] memfd_create("syzkaller", 0) = 3
[pid 6329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6329] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6329] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6329] close(3) = 0
[pid 6329] mkdir("./file0", 0777) = 0
[pid 6329] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[ 278.818573][ T6329] loop0: detected capacity change from 0 to 4096
[ 278.837672][ T6329] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 278.845681][ T6329] NILFS (loop0): trying rollback from an earlier position
[ 278.859537][ T6329] NILFS (loop0): recovery complete
[pid 6329] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6329] chdir("./file0") = 0
[pid 6329] ioctl(4, LOOP_CLR_FD) = 0
[pid 6329] close(4) = 0
[pid 6329] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6329] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 278.866056][ T6330] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[pid 6329] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6329] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6329] exit_group(0) = ?
[pid 6329] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6329, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
umount2("./627", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./627", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./627/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./627/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./627/binderfs") = 0
umount2("./627/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./627/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./627/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./627/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./627/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./627/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./627") = 0
mkdir("./628", 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=0x555555db65d0) = 6331
./strace-static-x86_64: Process 6331 attached
[pid 6331] chdir("./628") = 0
[pid 6331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6331] setpgid(0, 0) = 0
[pid 6331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6331] write(3, "1000", 4) = 4
[pid 6331] close(3) = 0
[pid 6331] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6331] memfd_create("syzkaller", 0) = 3
[pid 6331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6331] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6331] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6331] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6331] close(3) = 0
[pid 6331] mkdir("./file0", 0777) = 0
[pid 6331] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6331] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6331] chdir("./file0") = 0
[pid 6331] ioctl(4, LOOP_CLR_FD) = 0
[pid 6331] close(4) = 0
[pid 6331] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[ 279.157680][ T6331] loop0: detected capacity change from 0 to 4096
[ 279.173080][ T6331] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 279.181167][ T6331] NILFS (loop0): trying rollback from an earlier position
[ 279.194961][ T6331] NILFS (loop0): recovery complete
[pid 6331] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 279.200867][ T6332] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 279.216222][ T27] kauditd_printk_skb: 6 callbacks suppressed
[ 279.216233][ T27] audit: type=1800 audit(1676306966.968:630): pid=6331 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6331] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6331] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6331] exit_group(0) = ?
[pid 6331] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6331, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./628", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./628", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./628/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./628/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./628/binderfs") = 0
umount2("./628/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./628/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./628/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./628/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./628/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./628/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./628") = 0
mkdir("./629", 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=0x555555db65d0) = 6333
./strace-static-x86_64: Process 6333 attached
[pid 6333] chdir("./629") = 0
[pid 6333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6333] setpgid(0, 0) = 0
[pid 6333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6333] write(3, "1000", 4) = 4
[pid 6333] close(3) = 0
[pid 6333] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6333] memfd_create("syzkaller", 0) = 3
[pid 6333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6333] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6333] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6333] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6333] close(3) = 0
[pid 6333] mkdir("./file0", 0777) = 0
[pid 6333] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6333] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6333] chdir("./file0") = 0
[pid 6333] ioctl(4, LOOP_CLR_FD) = 0
[ 279.490929][ T6333] loop0: detected capacity change from 0 to 4096
[ 279.506555][ T6333] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 279.514565][ T6333] NILFS (loop0): trying rollback from an earlier position
[ 279.528417][ T6333] NILFS (loop0): recovery complete
[pid 6333] close(4) = 0
[pid 6333] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6333] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 279.534289][ T6334] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 279.548639][ T27] audit: type=1800 audit(1676306967.308:631): pid=6333 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6333] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6333] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6333] exit_group(0) = ?
[pid 6333] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6333, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./629", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./629", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./629/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./629/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./629/binderfs") = 0
umount2("./629/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./629/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./629/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./629/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./629/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./629/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./629") = 0
mkdir("./630", 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=0x555555db65d0) = 6335
./strace-static-x86_64: Process 6335 attached
[pid 6335] chdir("./630") = 0
[pid 6335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6335] setpgid(0, 0) = 0
[pid 6335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6335] write(3, "1000", 4) = 4
[pid 6335] close(3) = 0
[pid 6335] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6335] memfd_create("syzkaller", 0) = 3
[pid 6335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6335] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6335] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6335] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6335] close(3) = 0
[pid 6335] mkdir("./file0", 0777) = 0
[pid 6335] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6335] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6335] chdir("./file0") = 0
[pid 6335] ioctl(4, LOOP_CLR_FD) = 0
[pid 6335] close(4) = 0
[ 279.825237][ T6335] loop0: detected capacity change from 0 to 4096
[ 279.841805][ T6335] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 279.849862][ T6335] NILFS (loop0): trying rollback from an earlier position
[ 279.863161][ T6335] NILFS (loop0): recovery complete
[pid 6335] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6335] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 279.877066][ T6336] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 279.887714][ T27] audit: type=1800 audit(1676306967.638:632): pid=6335 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6335] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6335] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6335] exit_group(0) = ?
[pid 6335] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6335, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
umount2("./630", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./630", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./630/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./630/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./630/binderfs") = 0
umount2("./630/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./630/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./630/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./630/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./630/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./630/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./630") = 0
mkdir("./631", 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=0x555555db65d0) = 6337
./strace-static-x86_64: Process 6337 attached
[pid 6337] chdir("./631") = 0
[pid 6337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6337] setpgid(0, 0) = 0
[pid 6337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6337] write(3, "1000", 4) = 4
[pid 6337] close(3) = 0
[pid 6337] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6337] memfd_create("syzkaller", 0) = 3
[pid 6337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6337] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6337] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6337] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6337] close(3) = 0
[pid 6337] mkdir("./file0", 0777) = 0
[pid 6337] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6337] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6337] chdir("./file0") = 0
[pid 6337] ioctl(4, LOOP_CLR_FD) = 0
[ 280.158113][ T6337] loop0: detected capacity change from 0 to 4096
[ 280.172998][ T6337] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 280.181079][ T6337] NILFS (loop0): trying rollback from an earlier position
[ 280.194448][ T6337] NILFS (loop0): recovery complete
[pid 6337] close(4) = 0
[pid 6337] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6337] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 280.200797][ T6338] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 280.213419][ T27] audit: type=1800 audit(1676306967.978:633): pid=6337 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6337] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6337] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6337] exit_group(0) = ?
[pid 6337] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6337, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./631", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./631", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./631/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./631/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./631/binderfs") = 0
umount2("./631/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./631/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./631/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./631/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./631/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./631/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./631") = 0
mkdir("./632", 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=0x555555db65d0) = 6339
./strace-static-x86_64: Process 6339 attached
[pid 6339] chdir("./632") = 0
[pid 6339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6339] setpgid(0, 0) = 0
[pid 6339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6339] write(3, "1000", 4) = 4
[pid 6339] close(3) = 0
[pid 6339] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6339] memfd_create("syzkaller", 0) = 3
[pid 6339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6339] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6339] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6339] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6339] close(3) = 0
[pid 6339] mkdir("./file0", 0777) = 0
[ 280.476059][ T6339] loop0: detected capacity change from 0 to 4096
[ 280.492204][ T6339] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 280.500247][ T6339] NILFS (loop0): trying rollback from an earlier position
[ 280.514162][ T6339] NILFS (loop0): recovery complete
[pid 6339] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6339] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6339] chdir("./file0") = 0
[pid 6339] ioctl(4, LOOP_CLR_FD) = 0
[pid 6339] close(4) = 0
[pid 6339] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6339] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 280.520023][ T6340] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 280.535982][ T27] audit: type=1800 audit(1676306968.288:634): pid=6339 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6339] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6339] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6339] exit_group(0) = ?
[pid 6339] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6339, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./632", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./632", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./632/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./632/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./632/binderfs") = 0
umount2("./632/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./632/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./632/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./632/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./632/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./632/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./632") = 0
mkdir("./633", 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=0x555555db65d0) = 6341
./strace-static-x86_64: Process 6341 attached
[pid 6341] chdir("./633") = 0
[pid 6341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6341] setpgid(0, 0) = 0
[pid 6341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6341] write(3, "1000", 4) = 4
[pid 6341] close(3) = 0
[pid 6341] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6341] memfd_create("syzkaller", 0) = 3
[pid 6341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6341] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6341] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6341] close(3) = 0
[pid 6341] mkdir("./file0", 0777) = 0
[ 280.795675][ T6341] loop0: detected capacity change from 0 to 4096
[ 280.811667][ T6341] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 280.819794][ T6341] NILFS (loop0): trying rollback from an earlier position
[ 280.833553][ T6341] NILFS (loop0): recovery complete
[pid 6341] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6341] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6341] chdir("./file0") = 0
[pid 6341] ioctl(4, LOOP_CLR_FD) = 0
[pid 6341] close(4) = 0
[pid 6341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6341] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 280.839280][ T6342] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 280.856426][ T27] audit: type=1800 audit(1676306968.618:635): pid=6341 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[pid 6341] sendfile(4, 5, NULL, 2147538701) = 899872
[pid 6341] ioctl(-1, F2FS_IOC_FLUSH_DEVICE, 0) = -1 EBADF (Bad file descriptor)
[pid 6341] exit_group(0) = ?
[pid 6341] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6341, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
umount2("./633", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./633", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(3, 0x555555db7620 /* 4 entries */, 32768) = 112
umount2("./633/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./633/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0
unlink("./633/binderfs") = 0
umount2("./633/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = 0
umount2("./633/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
lstat("./633/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
umount2("./633/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./633/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
getdents64(4, 0x555555dbf660 /* 2 entries */, 32768) = 48
getdents64(4, 0x555555dbf660 /* 0 entries */, 32768) = 0
close(4) = 0
rmdir("./633/file0") = 0
getdents64(3, 0x555555db7620 /* 0 entries */, 32768) = 0
close(3) = 0
rmdir("./633") = 0
mkdir("./634", 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=0x555555db65d0) = 6343
./strace-static-x86_64: Process 6343 attached
[pid 6343] chdir("./634") = 0
[pid 6343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 6343] setpgid(0, 0) = 0
[pid 6343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 6343] write(3, "1000", 4) = 4
[pid 6343] close(3) = 0
[pid 6343] symlink("/dev/binderfs", "./binderfs") = 0
[pid 6343] memfd_create("syzkaller", 0) = 3
[pid 6343] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ef2e77000
[pid 6343] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 2097152) = 2097152
[pid 6343] munmap(0x7f2ef2e77000, 2097152) = 0
[pid 6343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 6343] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 6343] close(3) = 0
[pid 6343] mkdir("./file0", 0777) = 0
[pid 6343] mount("/dev/loop0", "./file0", "nilfs2", MS_NODIRATIME|MS_REC, "") = 0
[pid 6343] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 6343] chdir("./file0") = 0
[ 281.124757][ T6343] loop0: detected capacity change from 0 to 4096
[ 281.141098][ T6343] NILFS (loop0): invalid segment: Checksum error in segment payload
[ 281.149173][ T6343] NILFS (loop0): trying rollback from an earlier position
[ 281.163003][ T6343] NILFS (loop0): recovery complete
[pid 6343] ioctl(4, LOOP_CLR_FD) = 0
[pid 6343] close(4) = 0
[pid 6343] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 6343] openat(AT_FDCWD, "/proc/self/exe", O_RDONLY) = 5
[ 281.169024][ T6344] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 281.187110][ T27] audit: type=1800 audit(1676306968.938:636): pid=6343 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor137" name="bus" dev="loop0" ino=12 res=0 errno=0
[ 281.222874][ T6344] ------------[ cut here ]------------
[ 281.229077][ T6344] WARNING: CPU: 1 PID: 6344 at fs/nilfs2/btree.c:2282 nilfs_btree_assign+0xa9f/0xd10
[ 281.238789][ T6344] Modules linked in:
[ 281.242714][ T6344] CPU: 1 PID: 6344 Comm: segctord Not tainted 6.2.0-rc8-syzkaller #0
[ 281.251299][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
[ 281.261438][ T6344] RIP: 0010:nilfs_btree_assign+0xa9f/0xd10
[ 281.267316][ T6344] Code: 00 0f 85 81 02 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7d 8b 3b fe 4c 8b 7c 24 38 eb a6 e8 71 8b 3b fe <0f> 0b 41 be fe ff ff ff eb 97 44 89 f1 80 e1 07 80 c1 03 38 c1 0f
[ 281.286973][ T6344] RSP: 0018:ffffc9000577f580 EFLAGS: 00010293
[ 281.293068][ T6344] RAX: ffffffff835046df RBX: ffff888073975360 RCX: ffff88801fc3d7c0
[ 281.301172][ T6344] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe
[ 281.309242][ T6344] RBP: ffffc9000577f6b0 R08: ffffffff8350403b R09: ffffed100d45c740
[ 281.317411][ T6344] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[ 281.325395][ T6344] R13: ffff888020414b00 R14: 00000000fffffffe R15: 1ffff92000aefec0
[ 281.333446][ T6344] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[ 281.342439][ T6344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 281.349086][ T6344] CR2: 00007f2ef304b000 CR3: 000000001c713000 CR4: 00000000003506e0
[ 281.357096][ T6344] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 281.365081][ T6344] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 281.373117][ T6344] Call Trace:
[ 281.376443][ T6344] <TASK>
[ 281.379395][ T6344] ? read_lock_is_recursive+0x20/0x20
[ 281.384848][ T6344] ? nilfs_btree_lookup_dirty_buffers+0xfd0/0xfd0
[ 281.391350][ T6344] ? __up_read+0x670/0x670
[ 281.395786][ T6344] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 281.401879][ T6344] nilfs_bmap_assign+0x8b/0x160
[ 281.406806][ T6344] nilfs_segctor_do_construct+0x3a11/0x6f70
[ 281.412835][ T6344] ? nilfs_transaction_unlock+0x210/0x210
[ 281.418607][ T6344] ? nilfs_segctor_confirm+0x24c/0x2d0
[ 281.424106][ T6344] ? rcu_read_lock_sched_held+0x8d/0x130
[ 281.429892][ T6344] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 281.435929][ T6344] ? nilfs_segctor_confirm+0x24c/0x2d0
[ 281.441441][ T6344] ? __lock_acquire+0x1f80/0x1f80
[ 281.446537][ T6344] ? do_raw_spin_unlock+0x13b/0x8b0
[ 281.451740][ T6344] ? _raw_spin_unlock+0x28/0x40
[ 281.456712][ T6344] ? nilfs_segctor_confirm+0x24c/0x2d0
[ 281.462199][ T6344] nilfs_segctor_construct+0x145/0x8c0
[ 281.467718][ T6344] nilfs_segctor_thread+0x53a/0x1140
[ 281.473050][ T6344] ? nilfs_construction_timeout+0x40/0x40
[ 281.478818][ T6344] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 281.484735][ T6344] ? _raw_spin_unlock+0x40/0x40
[ 281.489629][ T6344] ? wake_bit_function+0x220/0x220
[ 281.494813][ T6344] ? _raw_spin_unlock+0x40/0x40
[ 281.499735][ T6344] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[ 281.505744][ T6344] ? __kthread_parkme+0x164/0x1c0
[ 281.510900][ T6344] kthread+0x270/0x300
[ 281.515031][ T6344] ? nilfs_construction_timeout+0x40/0x40
[ 281.520870][ T6344] ? kthread_blkcg+0xd0/0xd0
[ 281.525496][ T6344] ret_from_fork+0x1f/0x30
[ 281.530022][ T6344] </TASK>
[ 281.533082][ T6344] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 281.540370][ T6344] CPU: 1 PID: 6344 Comm: segctord Not tainted 6.2.0-rc8-syzkaller #0
[ 281.548428][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
[ 281.558480][ T6344] Call Trace:
[ 281.561754][ T6344] <TASK>
[ 281.564686][ T6344] dump_stack_lvl+0x1e7/0x2d0
[ 281.569414][ T6344] ? nf_tcp_handle_invalid+0x640/0x640
[ 281.574876][ T6344] ? panic+0x770/0x770
[ 281.578955][ T6344] ? vscnprintf+0x5d/0x80
[ 281.583286][ T6344] panic+0x31c/0x770
[ 281.587183][ T6344] ? __warn+0x16c/0x5f0
[ 281.591365][ T6344] ? memcpy_page_flushcache+0x100/0x100
[ 281.596921][ T6344] ? ret_from_fork+0x1f/0x30
[ 281.601520][ T6344] __warn+0x419/0x5f0
[ 281.605504][ T6344] ? nilfs_btree_assign+0xa9f/0xd10
[ 281.610722][ T6344] ? nilfs_btree_assign+0xa9f/0xd10
[ 281.615926][ T6344] report_bug+0x1bd/0x2d0
[ 281.620308][ T6344] handle_bug+0x3d/0x70
[ 281.624469][ T6344] exc_invalid_op+0x1a/0x50
[ 281.628985][ T6344] asm_exc_invalid_op+0x1a/0x20
[ 281.633889][ T6344] RIP: 0010:nilfs_btree_assign+0xa9f/0xd10
[ 281.639712][ T6344] Code: 00 0f 85 81 02 00 00 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7d 8b 3b fe 4c 8b 7c 24 38 eb a6 e8 71 8b 3b fe <0f> 0b 41 be fe ff ff ff eb 97 44 89 f1 80 e1 07 80 c1 03 38 c1 0f
[ 281.659334][ T6344] RSP: 0018:ffffc9000577f580 EFLAGS: 00010293
[ 281.665403][ T6344] RAX: ffffffff835046df RBX: ffff888073975360 RCX: ffff88801fc3d7c0
[ 281.673385][ T6344] RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe
[ 281.681359][ T6344] RBP: ffffc9000577f6b0 R08: ffffffff8350403b R09: ffffed100d45c740
[ 281.689333][ T6344] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[ 281.697303][ T6344] R13: ffff888020414b00 R14: 00000000fffffffe R15: 1ffff92000aefec0
[ 281.705279][ T6344] ? nilfs_btree_assign+0x3fb/0xd10
[ 281.710479][ T6344] ? nilfs_btree_assign+0xa9f/0xd10
[ 281.715685][ T6344] ? read_lock_is_recursive+0x20/0x20
[ 281.721078][ T6344] ? nilfs_btree_lookup_dirty_buffers+0xfd0/0xfd0
[ 281.727496][ T6344] ? __up_read+0x670/0x670
[ 281.731932][ T6344] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 281.737929][ T6344] nilfs_bmap_assign+0x8b/0x160
[ 281.742783][ T6344] nilfs_segctor_do_construct+0x3a11/0x6f70
[ 281.748732][ T6344] ? nilfs_transaction_unlock+0x210/0x210
[ 281.754454][ T6344] ? nilfs_segctor_confirm+0x24c/0x2d0
[ 281.759916][ T6344] ? rcu_read_lock_sched_held+0x8d/0x130
[ 281.765553][ T6344] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 281.771557][ T6344] ? nilfs_segctor_confirm+0x24c/0x2d0
[ 281.777013][ T6344] ? __lock_acquire+0x1f80/0x1f80
[ 281.782078][ T6344] ? do_raw_spin_unlock+0x13b/0x8b0
[ 281.787278][ T6344] ? _raw_spin_unlock+0x28/0x40
[ 281.792126][ T6344] ? nilfs_segctor_confirm+0x24c/0x2d0
[ 281.797584][ T6344] nilfs_segctor_construct+0x145/0x8c0
[ 281.803057][ T6344] nilfs_segctor_thread+0x53a/0x1140
[ 281.808393][ T6344] ? nilfs_construction_timeout+0x40/0x40
[ 281.814120][ T6344] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 281.820022][ T6344] ? _raw_spin_unlock+0x40/0x40
[ 281.824882][ T6344] ? wake_bit_function+0x220/0x220
[ 281.830000][ T6344] ? _raw_spin_unlock+0x40/0x40
[ 281.834868][ T6344] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0
[ 281.840867][ T6344] ? __kthread_parkme+0x164/0x1c0
[ 281.845917][ T6344] kthread+0x270/0x300
[ 281.849992][ T6344] ? nilfs_construction_timeout+0x40/0x40
[ 281.855713][ T6344] ? kthread_blkcg+0xd0/0xd0
[ 281.860307][ T6344] ret_from_fork+0x1f/0x30
[ 281.864743][ T6344] </TASK>
[ 281.868031][ T6344] Kernel Offset: disabled
[ 281.872458][ T6344] Rebooting in 86400 seconds..