./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4020805481

<...>
Warning: Permanently added '10.128.0.164' (ED25519) to the list of known hosts.
execve("./syz-executor4020805481", ["./syz-executor4020805481"], 0x7ffdbaa05340 /* 10 vars */) = 0
brk(NULL)                               = 0x55557050c000
brk(0x55557050cd00)                     = 0x55557050cd00
arch_prctl(ARCH_SET_FS, 0x55557050c380) = 0
set_tid_address(0x55557050c650)         = 296
set_robust_list(0x55557050c660, 24)     = 0
rseq(0x55557050cca0, 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-executor4020805481", 4096) = 28
getrandom("\x9c\xad\x7d\x00\xb7\x33\xd6\x40", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557050cd00
brk(0x55557052dd00)                     = 0x55557052dd00
brk(0x55557052e000)                     = 0x55557052e000
mprotect(0x7f3990f86000, 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
mkdir("./syzkaller.HHNFS5", 0700)       = 0
chmod("./syzkaller.HHNFS5", 0777)       = 0
chdir("./syzkaller.HHNFS5")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 297 attached
, child_tidptr=0x55557050c650) = 297
[pid   297] set_robust_list(0x55557050c660, 24) = 0
[pid   297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   297] getppid()                   = 0
[pid   297] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   297] unshare(CLONE_NEWNS)        = 0
[pid   297] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   297] unshare(CLONE_NEWCGROUP)    = 0
[pid   297] unshare(CLONE_NEWUTS)       = 0
[pid   297] unshare(CLONE_SYSVSEM)      = 0
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] getpid()                    = 1
[pid   297] 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   297] 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   297] unshare(CLONE_NEWNET)       = 0
[pid   297] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "0 65535", 7)      = 7
[pid   297] close(3)                    = 0
[pid   297] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "100000", 6)       = 6
[pid   297] close(3)                    = 0
[pid   297] mkdir("./syz-tmp", 0777)    = 0
[pid   297] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   297] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   297] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   297] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   297] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   297] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   297] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] 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   297] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   297] 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   297] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   297] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   297] chdir("/")                  = 0
[pid   297] umount2("./pivot", MNT_DETACH) = 0
[pid   297] chroot("./newroot")         = 0
[pid   297] chdir("/")                  = 0
[pid   297] mkdir("/dev/gadgetfs", 0777) = 0
[pid   297] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   297] mkdir("/dev/binderfs", 0777) = 0
[pid   297] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   297] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   297] mkdir("./0", 0777)          = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557050c650) = 2
./strace-static-x86_64: Process 299 attached
[pid   299] set_robust_list(0x55557050c660, 24) = 0
[pid   299] chdir("./0")                = 0
[   21.980753][   T36] audit: type=1400 audit(1750446389.610:64): avc:  denied  { execmem } for  pid=296 comm="syz-executor402" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.001687][   T36] audit: type=1400 audit(1750446389.610:65): avc:  denied  { mounton } for  pid=297 comm="syz-executor402" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   299] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program
) = 0
[pid   299] setpgid(0, 0)               = 0
[pid   299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   299] write(3, "1000", 4)         = 4
[pid   299] close(3)                    = 0
[pid   299] symlink("/dev/binderfs", "./binderfs") = 0
[pid   299] write(1, "executing program\n", 18) = 18
[pid   299] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   299] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   299] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   299] mount("./file0/file0", "./file0/file0", NULL, MS_NOSUID|MS_NOEXEC|MS_SYNCHRONOUS|MS_BIND|MS_POSIXACL|MS_UNBINDABLE|MS_SLAVE|MS_I_VERSION, NULL) = 0
[pid   299] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   299] exit_group(0)               = ?
[pid   299] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   297] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   297] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(3, 0x55557050d6f0 /* 4 entries */, 32768) = 112
[pid   297] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   297] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   297] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   297] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(4, 0x555570515730 /* 4 entries */, 32768) = 112
[pid   297] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   297] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] newfstatat(AT_FDCWD, "./0/file0/file0", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   297] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   297] newfstatat(5, "", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(5, 0x55557051d770 /* 4 entries */, 32768) = 112
[pid   297] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] newfstatat(AT_FDCWD, "./0/file0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   297] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0/file0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   297] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(6, 0x5555705257b0 /* 2 entries */, 32768) = 48
[pid   297] getdents64(6, 0x5555705257b0 /* 0 entries */, 32768) = 0
[pid   297] close(6)                    = 0
[pid   297] rmdir("./0/file0/file0/.incomplete") = 0
[pid   297] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] newfstatat(AT_FDCWD, "./0/file0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   297] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0/file0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   297] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(6, 0x5555705257b0 /* 2 entries */, 32768) = 48
[pid   297] getdents64(6, 0x5555705257b0 /* 0 entries */, 32768) = 0
[pid   297] close(6)                    = 0
[pid   297] rmdir("./0/file0/file0/.index") = 0
[pid   297] getdents64(5, 0x55557051d770 /* 0 entries */, 32768) = 0
[pid   297] close(5)                    = 0
[pid   297] rmdir("./0/file0/file0")    = -1 EBUSY (Device or resource busy)
[pid   297] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] exit_group(1)               = ?
[   22.023434][   T36] audit: type=1400 audit(1750446389.640:66): avc:  denied  { mounton } for  pid=297 comm="syz-executor402" path="/root/syzkaller.HHNFS5/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   22.048150][   T36] audit: type=1400 audit(1750446389.640:67): avc:  denied  { mount } for  pid=297 comm="syz-executor402" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   22.070660][   T36] audit: type=1400 audit(1750446389.640:68): avc:  denied  { mounton } for  pid=297 comm="syz-executor402" path="/root/syzkaller.HHNFS5/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
[   22.071296][  T297] ------------[ cut here ]------------
[   22.096200][   T36] audit: type=1400 audit(1750446389.640:69): avc:  denied  { mount } for  pid=297 comm="syz-executor402" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   22.101411][  T297] WARNING: CPU: 1 PID: 297 at fs/inode.c:340 drop_nlink+0xce/0x110
[   22.123459][   T36] audit: type=1400 audit(1750446389.640:70): avc:  denied  { mounton } for  pid=297 comm="syz-executor402" path="/root/syzkaller.HHNFS5/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
[   22.131147][  T297] Modules linked in:
[   22.157922][   T36] audit: type=1400 audit(1750446389.640:71): avc:  denied  { mounton } for  pid=297 comm="syz-executor402" path="/root/syzkaller.HHNFS5/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=2287 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   22.161715][  T297] CPU: 1 UID: 0 PID: 297 Comm: syz-executor402 Not tainted 6.12.23-syzkaller-g6c1c18fcb8b7 #0 ba78288b1e32eb9f88d3f8d8da6b79a037cd8362
[   22.189408][   T36] audit: type=1400 audit(1750446389.640:72): avc:  denied  { unmount } for  pid=297 comm="syz-executor402" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   22.202928][  T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   22.222722][   T36] audit: type=1400 audit(1750446389.660:73): avc:  denied  { mounton } for  pid=297 comm="syz-executor402" path="/dev/gadgetfs" dev="devtmpfs" ino=434 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   22.232597][  T297] RIP: 0010:drop_nlink+0xce/0x110
[   22.260449][  T297] Code: 04 00 00 be 08 00 00 00 e8 7f 56 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 e2 68 98 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
[   22.280089][  T297] RSP: 0018:ffffc9000124fa80 EFLAGS: 00010293
[   22.286178][  T297] RAX: ffffffff81ed146e RBX: ffff888100fe47e0 RCX: ffff888121bc1300
[   22.294178][  T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   22.302166][  T297] RBP: ffffc9000124faa8 R08: 0000000000000003 R09: 0000000000000004
[   22.310129][  T297] R10: dffffc0000000000 R11: fffff52000249f40 R12: dffffc0000000000
[   22.318115][  T297] R13: 1ffff110201fc905 R14: ffff888100fe4828 R15: 0000000000000000
[   22.326105][  T297] FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   22.335087][  T297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.341673][  T297] CR2: 00007f3990f8d1b0 CR3: 000000010b74e000 CR4: 00000000003526b0
[   22.349695][  T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.357691][  T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.365676][  T297] Call Trace:
[   22.368940][  T297]  <TASK>
[   22.371849][  T297]  shmem_rmdir+0x5f/0x90
[   22.376118][  T297]  vfs_rmdir+0x3dd/0x560
[   22.380341][  T297]  incfs_kill_sb+0x109/0x230
[   22.384940][  T297]  deactivate_locked_super+0xd5/0x2a0
[   22.390299][  T297]  deactivate_super+0xb8/0xe0
[   22.394977][  T297]  cleanup_mnt+0x3f1/0x480
[   22.399388][  T297]  __cleanup_mnt+0x1d/0x40
[   22.403808][  T297]  task_work_run+0x1e0/0x250
[   22.408388][  T297]  ? __cfi_task_work_run+0x10/0x10
[   22.413499][  T297]  ? free_nsproxy+0x223/0x290
[   22.418171][  T297]  do_exit+0x9b4/0x2630
[   22.422328][  T297]  ? __cfi_do_exit+0x10/0x10
[   22.426909][  T297]  ? __kasan_check_write+0x18/0x20
[   22.432028][  T297]  ? _raw_spin_lock_irq+0x8d/0x120
[   22.437137][  T297]  ? __cfi__raw_spin_lock_irq+0x10/0x10
[   22.442688][  T297]  ? zap_other_threads+0x334/0x370
[   22.447796][  T297]  do_group_exit+0x22a/0x300
[   22.452392][  T297]  __x64_sys_exit_group+0x43/0x50
[   22.457404][  T297]  x64_sys_call+0x2ed2/0x2ee0
[   22.462092][  T297]  do_syscall_64+0x58/0xf0
[   22.466503][  T297]  ? clear_bhb_loop+0x35/0x90
[   22.471157][  T297]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   22.477057][  T297] RIP: 0033:0x7f3990f10789
[   22.481468][  T297] Code: Unable to access opcode bytes at 0x7f3990f1075f.
[   22.488491][  T297] RSP: 002b:00007ffc50e027f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   22.496930][  T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3990f10789
[   22.504916][  T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   22.512899][  T297] RBP: 00007f3990f8c350 R08: ffffffffffffffb8 R09: 0000000000000000
[   22.520858][  T297] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f3990f8c350
[   22.528840][  T297] R13: 0000000000000000 R14: 00007f3990f8cda0 R15: 00007f3990ee1760
[   22.536836][  T297]  </TASK>
[   22.539844][  T297] ---[ end trace 0000000000000000 ]---
[   22.545421][  T297] ==================================================================
[   22.553475][  T297] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70
[   22.559698][  T297] Write of size 4 at addr 0000000000000168 by task syz-executor402/297
[   22.567903][  T297] 
[   22.570204][  T297] CPU: 1 UID: 0 PID: 297 Comm: syz-executor402 Tainted: G        W          6.12.23-syzkaller-g6c1c18fcb8b7 #0 ba78288b1e32eb9f88d3f8d8da6b79a037cd8362
[   22.570220][  T297] Tainted: [W]=WARN
[   22.570223][  T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   22.570229][  T297] Call Trace:
[   22.570234][  T297]  <TASK>
[   22.570238][  T297]  __dump_stack+0x21/0x30
[   22.570252][  T297]  dump_stack_lvl+0x10c/0x190
[   22.570263][  T297]  ? __cfi_dump_stack_lvl+0x10/0x10
[   22.570274][  T297]  print_report+0x3d/0x70
[   22.570283][  T297]  kasan_report+0x163/0x1a0
[   22.570296][  T297]  ? ihold+0x24/0x70
[   22.570308][  T297]  ? _raw_spin_unlock+0x45/0x60
[   22.570320][  T297]  ? ihold+0x24/0x70
[   22.570331][  T297]  kasan_check_range+0x299/0x2a0
[   22.570344][  T297]  __kasan_check_write+0x18/0x20
[   22.570354][  T297]  ihold+0x24/0x70
[   22.570365][  T297]  vfs_rmdir+0x26a/0x560
[   22.570374][  T297]  incfs_kill_sb+0x109/0x230
[   22.570384][  T297]  deactivate_locked_super+0xd5/0x2a0
[   22.570393][  T297]  deactivate_super+0xb8/0xe0
[   22.570402][  T297]  cleanup_mnt+0x3f1/0x480
[   22.570414][  T297]  __cleanup_mnt+0x1d/0x40
[   22.570425][  T297]  task_work_run+0x1e0/0x250
[   22.570435][  T297]  ? __cfi_task_work_run+0x10/0x10
[   22.570444][  T297]  ? free_nsproxy+0x223/0x290
[   22.570455][  T297]  do_exit+0x9b4/0x2630
[   22.570465][  T297]  ? __cfi_do_exit+0x10/0x10
[   22.570474][  T297]  ? __kasan_check_write+0x18/0x20
[   22.570483][  T297]  ? _raw_spin_lock_irq+0x8d/0x120
[   22.570495][  T297]  ? __cfi__raw_spin_lock_irq+0x10/0x10
[   22.570506][  T297]  ? zap_other_threads+0x334/0x370
[   22.570520][  T297]  do_group_exit+0x22a/0x300
[   22.570529][  T297]  __x64_sys_exit_group+0x43/0x50
[   22.570538][  T297]  x64_sys_call+0x2ed2/0x2ee0
[   22.570555][  T297]  do_syscall_64+0x58/0xf0
[   22.570567][  T297]  ? clear_bhb_loop+0x35/0x90
[   22.570581][  T297]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   22.570594][  T297] RIP: 0033:0x7f3990f10789
[   22.570603][  T297] Code: Unable to access opcode bytes at 0x7f3990f1075f.
[   22.570608][  T297] RSP: 002b:00007ffc50e027f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   22.570619][  T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3990f10789
[   22.570626][  T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   22.570632][  T297] RBP: 00007f3990f8c350 R08: ffffffffffffffb8 R09: 0000000000000000
[   22.570638][  T297] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f3990f8c350
[   22.570645][  T297] R13: 0000000000000000 R14: 00007f3990f8cda0 R15: 00007f3990ee1760
[   22.570652][  T297]  </TASK>
[   22.570656][  T297] ==================================================================
[   22.825454][  T297] Disabling lock debugging due to kernel taint
[   22.831640][  T297] BUG: kernel NULL pointer dereference, address: 0000000000000168
[   22.839438][  T297] #PF: supervisor write access in kernel mode
[   22.845511][  T297] #PF: error_code(0x0002) - not-present page
[   22.851461][  T297] PGD 0 P4D 0 
[   22.854809][  T297] Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI
[   22.860849][  T297] CPU: 1 UID: 0 PID: 297 Comm: syz-executor402 Tainted: G    B   W          6.12.23-syzkaller-g6c1c18fcb8b7 #0 ba78288b1e32eb9f88d3f8d8da6b79a037cd8362
[   22.876094][  T297] Tainted: [B]=BAD_PAGE, [W]=WARN
[   22.881081][  T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   22.891107][  T297] RIP: 0010:ihold+0x2a/0x70
[   22.895589][  T297] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 cd 5f 98 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 4d ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 dd
[   22.915168][  T297] RSP: 0018:ffffc9000124fac0 EFLAGS: 00010246
[   22.921235][  T297] RAX: ffff888121bc1300 RBX: 0000000000000000 RCX: ffff888121bc1300
[   22.929182][  T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   22.937126][  T297] RBP: ffffc9000124fad0 R08: ffffffff88954947 R09: 1ffffffff112a928
[   22.945070][  T297] R10: dffffc0000000000 R11: fffffbfff112a929 R12: ffff888100fe47ec
[   22.953016][  T297] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   22.960959][  T297] FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   22.969861][  T297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.976418][  T297] CR2: 0000000000000168 CR3: 000000010b74e000 CR4: 00000000003526b0
[   22.984364][  T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.992306][  T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.000261][  T297] Call Trace:
[   23.003605][  T297]  <TASK>
[   23.006513][  T297]  vfs_rmdir+0x26a/0x560
[   23.010740][  T297]  incfs_kill_sb+0x109/0x230
[   23.015307][  T297]  deactivate_locked_super+0xd5/0x2a0
[   23.020654][  T297]  deactivate_super+0xb8/0xe0
[   23.025302][  T297]  cleanup_mnt+0x3f1/0x480
[   23.029692][  T297]  __cleanup_mnt+0x1d/0x40
[   23.034086][  T297]  task_work_run+0x1e0/0x250
[   23.038676][  T297]  ? __cfi_task_work_run+0x10/0x10
[   23.043759][  T297]  ? free_nsproxy+0x223/0x290
[   23.048415][  T297]  do_exit+0x9b4/0x2630
[   23.052543][  T297]  ? __cfi_do_exit+0x10/0x10
[   23.057103][  T297]  ? __kasan_check_write+0x18/0x20
[   23.062186][  T297]  ? _raw_spin_lock_irq+0x8d/0x120
[   23.067273][  T297]  ? __cfi__raw_spin_lock_irq+0x10/0x10
[   23.072800][  T297]  ? zap_other_threads+0x334/0x370
[   23.077888][  T297]  do_group_exit+0x22a/0x300
[   23.082450][  T297]  __x64_sys_exit_group+0x43/0x50
[   23.087448][  T297]  x64_sys_call+0x2ed2/0x2ee0
[   23.092100][  T297]  do_syscall_64+0x58/0xf0
[   23.096492][  T297]  ? clear_bhb_loop+0x35/0x90
[   23.101143][  T297]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[   23.107015][  T297] RIP: 0033:0x7f3990f10789
[   23.111402][  T297] Code: Unable to access opcode bytes at 0x7f3990f1075f.
[   23.118393][  T297] RSP: 002b:00007ffc50e027f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   23.126775][  T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3990f10789
[   23.134726][  T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   23.142671][  T297] RBP: 00007f3990f8c350 R08: ffffffffffffffb8 R09: 0000000000000000
[   23.150617][  T297] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f3990f8c350
[   23.158560][  T297] R13: 0000000000000000 R14: 00007f3990f8cda0 R15: 00007f3990ee1760
[   23.166517][  T297]  </TASK>
[   23.169512][  T297] Modules linked in:
[   23.173388][  T297] CR2: 0000000000000168
[   23.177511][  T297] ---[ end trace 0000000000000000 ]---
[   23.182935][  T297] RIP: 0010:ihold+0x2a/0x70
[   23.187418][  T297] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 cd 5f 98 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 4d ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 dd
[   23.206994][  T297] RSP: 0018:ffffc9000124fac0 EFLAGS: 00010246
[   23.213033][  T297] RAX: ffff888121bc1300 RBX: 0000000000000000 RCX: ffff888121bc1300
[   23.220977][  T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.228919][  T297] RBP: ffffc9000124fad0 R08: ffffffff88954947 R09: 1ffffffff112a928
[   23.236863][  T297] R10: dffffc0000000000 R11: fffffbfff112a929 R12: ffff888100fe47ec
[   23.244812][  T297] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   23.252754][  T297] FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   23.261654][  T297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.268210][  T297] CR2: 0000000000000168 CR3: 000000010b74e000 CR4: 00000000003526b0
[   23.276157][  T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.284110][  T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.292057][  T297] Kernel panic - not syncing: Fatal exception
[   23.298335][  T297] Kernel Offset: disabled
[   23.302636][  T297] Rebooting in 86400 seconds..