./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3857329065

<...>
Warning: Permanently added '10.128.0.52' (ED25519) to the list of known hosts.
execve("./syz-executor3857329065", ["./syz-executor3857329065"], 0x7ffda3aeaab0 /* 10 vars */) = 0
brk(NULL)                               = 0x555570412000
brk(0x555570412e00)                     = 0x555570412e00
arch_prctl(ARCH_SET_FS, 0x555570412480) = 0
set_tid_address(0x555570412750)         = 290
set_robust_list(0x555570412760, 24)     = 0
rseq(0x555570412da0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3857329065", 4096) = 28
getrandom("\x6c\x5a\xdd\x58\xbf\x59\xf9\xe4", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555570412e00
brk(0x555570433e00)                     = 0x555570433e00
brk(0x555570434000)                     = 0x555570434000
mprotect(0x7f67cfb49000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f67cfa9fdf0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f67cfaa7bf0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f67cfa9fdf0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f67cfaa7bf0}, NULL, 8) = 0
mkdir("./syzkaller.XntHCp", 0700)       = 0
chmod("./syzkaller.XntHCp", 0777)       = 0
chdir("./syzkaller.XntHCp")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555570412750) = 291
./strace-static-x86_64: Process 291 attached
[pid   291] set_robust_list(0x555570412760, 24) = 0
[pid   291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   291] getppid()                   = 0
[pid   291] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   291] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   291] unshare(CLONE_NEWNS)        = 0
[pid   291] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   291] unshare(CLONE_NEWCGROUP)    = 0
[pid   291] unshare(CLONE_NEWUTS)       = 0
[pid   291] unshare(CLONE_SYSVSEM)      = 0
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   291] getpid()                    = 1
[pid   291] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   291] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   291] unshare(CLONE_NEWNET)       = 0
[pid   291] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   291] write(3, "0 65535", 7)      = 7
[pid   291] close(3)                    = 0
[pid   291] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   291] write(3, "100000", 6)       = 6
[pid   291] close(3)                    = 0
[pid   291] mkdir("./syz-tmp", 0777)    = 0
[pid   291] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   291] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   291] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   291] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   291] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   291] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   291] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   291] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   291] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   291] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   291] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   291] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   291] chdir("/")                  = 0
[pid   291] umount2("./pivot", MNT_DETACH) = 0
[pid   291] chroot("./newroot")         = 0
[pid   291] chdir("/")                  = 0
[pid   291] mkdir("/dev/gadgetfs", 0777) = 0
[   24.177602][   T24] audit: type=1400 audit(1743607447.840:66): avc:  denied  { execmem } for  pid=290 comm="syz-executor385" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   24.196872][   T24] audit: type=1400 audit(1743607447.840:67): avc:  denied  { mounton } for  pid=291 comm="syz-executor385" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   24.218448][   T24] audit: type=1400 audit(1743607447.860:68): avc:  denied  { mounton } for  pid=291 comm="syz-executor385" path="/root/syzkaller.XntHCp/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   24.242847][   T24] audit: type=1400 audit(1743607447.860:69): avc:  denied  { mount } for  pid=291 comm="syz-executor385" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   24.245017][  T291] request_module fs-gadgetfs succeeded, but still no fs?
[   24.264898][   T24] audit: type=1400 audit(1743607447.890:70): avc:  denied  { mounton } for  pid=291 comm="syz-executor385" path="/root/syzkaller.XntHCp/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   24.264915][   T24] audit: type=1400 audit(1743607447.890:71): avc:  denied  { mount } for  pid=291 comm="syz-executor385" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[pid   291] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   291] mkdir("/dev/binderfs", 0777) = 0
[pid   291] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   291] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   291] mkdir("./0", 0777)          = 0
[pid   291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   291] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[   24.264932][   T24] audit: type=1400 audit(1743607447.890:72): avc:  denied  { mounton } for  pid=291 comm="syz-executor385" path="/root/syzkaller.XntHCp/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   24.264949][   T24] audit: type=1400 audit(1743607447.890:73): avc:  denied  { mounton } for  pid=291 comm="syz-executor385" path="/root/syzkaller.XntHCp/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14593 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[pid   291] close(3)                    = 0
[pid   291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555570412750) = 2
./strace-static-x86_64: Process 294 attached
[pid   294] set_robust_list(0x555570412760, 24) = 0
[pid   294] chdir("./0")                = 0
[pid   294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   294] setpgid(0, 0)               = 0
[pid   294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   294] write(3, "1000", 4)         = 4
[pid   294] close(3)                    = 0
[pid   294] symlink("/dev/binderfs", "./binderfs") = 0
[pid   294] write(1, "executing program\n", 18executing program
) = 18
[pid   294] mkdir("./file0", 0777)      = 0
[pid   294] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   294] mount("./file0", "./file0", "incremental-fs", MS_NOEXEC|MS_NOATIME|MS_STRICTATIME, NULL) = 0
[pid   294] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   294] mount("./file0/file0", "./file0/file0", NULL, MS_NOSUID|MS_NOEXEC|MS_SYNCHRONOUS|MS_MANDLOCK|MS_BIND|MS_POSIXACL|MS_I_VERSION, NULL) = 0
[pid   294] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   294] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   294] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   294] exit_group(0)               = ?
[pid   294] +++ exited with 0 +++
[pid   291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   291] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   291] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   291] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(3, 0x5555704137f0 /* 4 entries */, 32768) = 112
[pid   291] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   291] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   291] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   291] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   291] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(4, 0x55557041b830 /* 4 entries */, 32768) = 112
[pid   291] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   291] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] newfstatat(AT_FDCWD, "./0/file0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   291] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   291] newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(5, 0x555570423870 /* 4 entries */, 32768) = 112
[pid   291] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] newfstatat(AT_FDCWD, "./0/file0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   291] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0/file0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   291] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(6, 0x55557042b8b0 /* 2 entries */, 32768) = 48
[pid   291] getdents64(6, 0x55557042b8b0 /* 0 entries */, 32768) = 0
[pid   291] close(6)                    = 0
[pid   291] rmdir("./0/file0/file0/.incomplete") = 0
[pid   291] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] newfstatat(AT_FDCWD, "./0/file0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   291] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] openat(AT_FDCWD, "./0/file0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   291] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   291] getdents64(6, 0x55557042b8b0 /* 2 entries */, 32768) = 48
[pid   291] getdents64(6, 0x55557042b8b0 /* 0 entries */, 32768) = 0
[pid   291] close(6)                    = 0
[pid   291] rmdir("./0/file0/file0/.index") = 0
[pid   291] getdents64(5, 0x555570423870 /* 0 entries */, 32768) = 0
[pid   291] close(5)                    = 0
[pid   291] rmdir("./0/file0/file0")    = -1 EBUSY (Device or resource busy)
[pid   291] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   291] exit_group(1)               = ?
[   24.264965][   T24] audit: type=1400 audit(1743607447.890:74): avc:  denied  { unmount } for  pid=291 comm="syz-executor385" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   24.264980][   T24] audit: type=1400 audit(1743607447.910:75): avc:  denied  { mounton } for  pid=291 comm="syz-executor385" path="/dev/gadgetfs" dev="devtmpfs" ino=509 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   24.426594][  T294] ======================================================
[   24.426594][  T294] WARNING: the mand mount option is being deprecated and
[   24.426594][  T294]          will be removed in v5.15!
[   24.426594][  T294] ======================================================
[   24.468585][  T291] ------------[ cut here ]------------
[   24.473924][  T291] WARNING: CPU: 0 PID: 291 at fs/inode.c:304 drop_nlink+0xc1/0x110
[   24.481685][  T291] Modules linked in:
[   24.485425][  T291] CPU: 0 PID: 291 Comm: syz-executor385 Not tainted 5.10.234-syzkaller-00033-g094fc3778d6b #0
[   24.495617][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   24.505516][  T291] RIP: 0010:drop_nlink+0xc1/0x110
[   24.510321][  T291] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 67 cb f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0f 2a b3 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   24.529918][  T291] RSP: 0018:ffffc90000b27b08 EFLAGS: 00010293
[   24.535804][  T291] RAX: ffffffff81b79541 RBX: 0000000000000000 RCX: ffff888104dd8000
[   24.543639][  T291] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   24.551412][  T291] RBP: ffffc90000b27b30 R08: ffffffff81b794c4 R09: 0000000000000003
[   24.559391][  T291] R10: fffff52000164f50 R11: dffffc0000000001 R12: dffffc0000000000
[   24.567218][  T291] R13: 1ffff11021a2bee1 R14: ffff88810d15f6c0 R15: ffff88810d15f708
[   24.575021][  T291] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.583790][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.590217][  T291] CR2: 00007f67cfb501d0 CR3: 000000010c8b3000 CR4: 00000000003506b0
[   24.598161][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.605949][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.613747][  T291] Call Trace:
[   24.616848][  T291]  ? show_regs+0x58/0x60
[   24.620920][  T291]  ? __warn+0x160/0x2f0
[   24.625009][  T291]  ? drop_nlink+0xc1/0x110
[   24.629288][  T291]  ? report_bug+0x3d9/0x5b0
[   24.633654][  T291]  ? drop_nlink+0xc1/0x110
[   24.637883][  T291]  ? handle_bug+0x41/0x70
[   24.642081][  T291]  ? exc_invalid_op+0x1b/0x50
[   24.646550][  T291]  ? asm_exc_invalid_op+0x12/0x20
[   24.651411][  T291]  ? drop_nlink+0x44/0x110
[   24.655730][  T291]  ? drop_nlink+0xc1/0x110
[   24.659917][  T291]  ? drop_nlink+0xc1/0x110
[   24.664203][  T291]  ? drop_nlink+0xc1/0x110
[   24.668425][  T291]  shmem_rmdir+0x59/0x90
[   24.672530][  T291]  vfs_rmdir+0x2b7/0x3f0
[   24.676580][  T291]  incfs_kill_sb+0x108/0x220
[   24.681005][  T291]  deactivate_locked_super+0xad/0x110
[   24.686313][  T291]  deactivate_super+0xbe/0xf0
[   24.690734][  T291]  cleanup_mnt+0x45c/0x510
[   24.695032][  T291]  __cleanup_mnt+0x19/0x20
[   24.699248][  T291]  task_work_run+0x129/0x190
[   24.703730][  T291]  do_exit+0xc83/0x2a50
[   24.707662][  T291]  ? put_task_struct+0x80/0x80
[   24.712291][  T291]  ? _raw_spin_unlock_irq+0x4e/0x70
[   24.717305][  T291]  ? ptrace_notify+0x24c/0x350
[   24.721922][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.726754][  T291]  ? debug_smp_processor_id+0x17/0x20
[   24.732113][  T291]  ? fpregs_assert_state_consistent+0xb6/0xe0
[   24.737950][  T291]  do_group_exit+0x141/0x310
[   24.742427][  T291]  __x64_sys_exit_group+0x3f/0x40
[   24.747239][  T291]  do_syscall_64+0x34/0x70
[   24.751488][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.757269][  T291] RIP: 0033:0x7f67cfad2f89
[   24.761482][  T291] Code: Unable to access opcode bytes at RIP 0x7f67cfad2f5f.
[   24.768724][  T291] RSP: 002b:00007ffd89a14e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   24.776952][  T291] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f67cfad2f89
[   24.784846][  T291] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   24.792666][  T291] RBP: 00007f67cfb4f370 R08: ffffffffffffffb8 R09: 0000000000000000
[   24.800455][  T291] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f67cfb4f370
[   24.808303][  T291] R13: 0000000000000000 R14: 00007f67cfb4fdc0 R15: 00007f67cfaa0cf0
[   24.816100][  T291] ---[ end trace d404e1e27ec9ba38 ]---
[   24.821390][  T291] ==================================================================
[   24.829265][  T291] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   24.835343][  T291] Write of size 4 at addr 0000000000000170 by task syz-executor385/291
[   24.843492][  T291] 
[   24.845691][  T291] CPU: 0 PID: 291 Comm: syz-executor385 Tainted: G        W         5.10.234-syzkaller-00033-g094fc3778d6b #0
[   24.857123][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   24.867025][  T291] Call Trace:
[   24.870157][  T291]  dump_stack_lvl+0x1e2/0x24b
[   24.874671][  T291]  ? panic+0x812/0x812
[   24.878560][  T291]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   24.883854][  T291]  ? _raw_spin_lock+0xa4/0x1b0
[   24.888470][  T291]  ? _raw_spin_trylock_bh+0x190/0x190
[   24.893680][  T291]  kasan_report+0x167/0x1c0
[   24.898004][  T291]  ? ihold+0x20/0x60
[   24.901757][  T291]  ? ihold+0x20/0x60
[   24.905472][  T291]  kasan_check_range+0x293/0x2a0
[   24.910249][  T291]  __kasan_check_write+0x14/0x20
[   24.915028][  T291]  ihold+0x20/0x60
[   24.918575][  T291]  vfs_rmdir+0x200/0x3f0
[   24.922658][  T291]  incfs_kill_sb+0x108/0x220
[   24.927083][  T291]  deactivate_locked_super+0xad/0x110
[   24.932392][  T291]  deactivate_super+0xbe/0xf0
[   24.936983][  T291]  cleanup_mnt+0x45c/0x510
[   24.941318][  T291]  __cleanup_mnt+0x19/0x20
[   24.945572][  T291]  task_work_run+0x129/0x190
[   24.949998][  T291]  do_exit+0xc83/0x2a50
[   24.953989][  T291]  ? put_task_struct+0x80/0x80
[   24.958607][  T291]  ? _raw_spin_unlock_irq+0x4e/0x70
[   24.963720][  T291]  ? ptrace_notify+0x24c/0x350
[   24.968450][  T291]  ? do_notify_parent+0xa10/0xa10
[   24.973328][  T291]  ? debug_smp_processor_id+0x17/0x20
[   24.978497][  T291]  ? fpregs_assert_state_consistent+0xb6/0xe0
[   24.984401][  T291]  do_group_exit+0x141/0x310
[   24.988822][  T291]  __x64_sys_exit_group+0x3f/0x40
[   24.993700][  T291]  do_syscall_64+0x34/0x70
[   24.997935][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   25.003670][  T291] RIP: 0033:0x7f67cfad2f89
[   25.007927][  T291] Code: Unable to access opcode bytes at RIP 0x7f67cfad2f5f.
[   25.015118][  T291] RSP: 002b:00007ffd89a14e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   25.023370][  T291] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f67cfad2f89
[   25.031174][  T291] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   25.039082][  T291] RBP: 00007f67cfb4f370 R08: ffffffffffffffb8 R09: 0000000000000000
[   25.046887][  T291] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f67cfb4f370
[   25.054785][  T291] R13: 0000000000000000 R14: 00007f67cfb4fdc0 R15: 00007f67cfaa0cf0
[   25.062598][  T291] ==================================================================
[   25.070495][  T291] Disabling lock debugging due to kernel taint
[   25.076595][  T291] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   25.084126][  T291] #PF: supervisor write access in kernel mode
[   25.090028][  T291] #PF: error_code(0x0002) - not-present page
[   25.095843][  T291] PGD 0 P4D 0 
[   25.099058][  T291] Oops: 0002 [#1] PREEMPT SMP KASAN
[   25.104093][  T291] CPU: 0 PID: 291 Comm: syz-executor385 Tainted: G    B   W         5.10.234-syzkaller-00033-g094fc3778d6b #0
[   25.115545][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   25.125450][  T291] RIP: 0010:ihold+0x25/0x60
[   25.129786][  T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 21 22 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 50 c3 f0 ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 a4 25 b3
[   25.149231][  T291] RSP: 0018:ffffc90000b27b48 EFLAGS: 00010246
[   25.155127][  T291] RAX: ffff888104dd8000 RBX: 0000000000000001 RCX: ffff888104dd8000
[   25.162942][  T291] RDX: 0000000000000000 RSI: 0000000000000286 RDI: 00000000ffffffff
[   25.170752][  T291] RBP: ffffc90000b27b58 R08: ffffffff813e2b8b R09: 0000000000000003
[   25.178566][  T291] R10: fffffbfff0e11248 R11: dffffc0000000001 R12: dffffc0000000000
[   25.186376][  T291] R13: ffff88810cd97aa0 R14: 0000000000000000 R15: 0000000000000000
[   25.194275][  T291] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   25.203042][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.209464][  T291] CR2: 0000000000000170 CR3: 000000010c8b3000 CR4: 00000000003506b0
[   25.217284][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.225087][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.232910][  T291] Call Trace:
[   25.236034][  T291]  ? __die_body+0x62/0xb0
[   25.240193][  T291]  ? __die+0x7e/0x90
[   25.243923][  T291]  ? no_context+0x9f9/0xd20
[   25.248264][  T291]  ? is_prefetch+0x5c0/0x5c0
[   25.252691][  T291]  ? preempt_schedule+0xd9/0xe0
[   25.257378][  T291]  ? __kasan_check_read+0x11/0x20
[   25.262238][  T291]  ? preempt_schedule_common+0xbe/0xf0
[   25.267536][  T291]  ? preempt_schedule+0xd9/0xe0
[   25.272220][  T291]  ? schedule_preempt_disabled+0x20/0x20
[   25.277693][  T291]  ? sysvec_apic_timer_interrupt+0xcb/0xe0
[   25.283330][  T291]  ? __bad_area_nosemaphore+0xc4/0x430
[   25.288625][  T291]  ? bad_area_nosemaphore+0x2d/0x40
[   25.293661][  T291]  ? exc_page_fault+0x3df/0x5b0
[   25.298348][  T291]  ? asm_exc_page_fault+0x1e/0x30
[   25.303211][  T291]  ? check_panic_on_warn+0x5b/0xb0
[   25.308156][  T291]  ? ihold+0x25/0x60
[   25.311889][  T291]  ? ihold+0x20/0x60
[   25.315619][  T291]  vfs_rmdir+0x200/0x3f0
[   25.319700][  T291]  incfs_kill_sb+0x108/0x220
[   25.324128][  T291]  deactivate_locked_super+0xad/0x110
[   25.329336][  T291]  deactivate_super+0xbe/0xf0
[   25.333852][  T291]  cleanup_mnt+0x45c/0x510
[   25.338156][  T291]  __cleanup_mnt+0x19/0x20
[   25.342356][  T291]  task_work_run+0x129/0x190
[   25.346782][  T291]  do_exit+0xc83/0x2a50
[   25.350774][  T291]  ? put_task_struct+0x80/0x80
[   25.355373][  T291]  ? _raw_spin_unlock_irq+0x4e/0x70
[   25.360412][  T291]  ? ptrace_notify+0x24c/0x350
[   25.365009][  T291]  ? do_notify_parent+0xa10/0xa10
[   25.369871][  T291]  ? debug_smp_processor_id+0x17/0x20
[   25.375082][  T291]  ? fpregs_assert_state_consistent+0xb6/0xe0
[   25.380979][  T291]  do_group_exit+0x141/0x310
[   25.385407][  T291]  __x64_sys_exit_group+0x3f/0x40
[   25.390268][  T291]  do_syscall_64+0x34/0x70
[   25.394524][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   25.400250][  T291] RIP: 0033:0x7f67cfad2f89
[   25.404501][  T291] Code: Unable to access opcode bytes at RIP 0x7f67cfad2f5f.
[   25.411704][  T291] RSP: 002b:00007ffd89a14e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   25.419955][  T291] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f67cfad2f89
[   25.427852][  T291] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   25.435665][  T291] RBP: 00007f67cfb4f370 R08: ffffffffffffffb8 R09: 0000000000000000
[   25.443476][  T291] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f67cfb4f370
[   25.451291][  T291] R13: 0000000000000000 R14: 00007f67cfb4fdc0 R15: 00007f67cfaa0cf0
[   25.459188][  T291] Modules linked in:
[   25.462916][  T291] CR2: 0000000000000170
[   25.466913][  T291] ---[ end trace d404e1e27ec9ba39 ]---
[   25.472214][  T291] RIP: 0010:ihold+0x25/0x60
[   25.476547][  T291] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 21 22 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 50 c3 f0 ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 a4 25 b3
[   25.496164][  T291] RSP: 0018:ffffc90000b27b48 EFLAGS: 00010246
[   25.502078][  T291] RAX: ffff888104dd8000 RBX: 0000000000000001 RCX: ffff888104dd8000
[   25.509877][  T291] RDX: 0000000000000000 RSI: 0000000000000286 RDI: 00000000ffffffff
[   25.517691][  T291] RBP: ffffc90000b27b58 R08: ffffffff813e2b8b R09: 0000000000000003
[   25.525500][  T291] R10: fffffbfff0e11248 R11: dffffc0000000001 R12: dffffc0000000000
[   25.533315][  T291] R13: ffff88810cd97aa0 R14: 0000000000000000 R15: 0000000000000000
[   25.541125][  T291] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   25.549978][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.556401][  T291] CR2: 0000000000000170 CR3: 000000010c8b3000 CR4: 00000000003506b0
[   25.564215][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.572024][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.579835][  T291] Kernel panic - not syncing: Fatal exception
[   25.585812][  T291] Kernel Offset: disabled
[   25.589905][  T291] Rebooting in 86400 seconds..