./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2220127092

<...>
[   18.023771][   T24] audit: type=1400 audit(1754909333.310:62): avc:  denied  { rlimitinh } for  pid=215 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   18.043114][   T24] audit: type=1400 audit(1754909333.310:63): avc:  denied  { siginh } for  pid=215 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.1.233' (ED25519) to the list of known hosts.
execve("./syz-executor2220127092", ["./syz-executor2220127092"], 0x7ffd4d5e9cb0 /* 10 vars */) = 0
brk(NULL)                               = 0x555558c0c000
brk(0x555558c0cd00)                     = 0x555558c0cd00
arch_prctl(ARCH_SET_FS, 0x555558c0c380) = 0
set_tid_address(0x555558c0c650)         = 282
set_robust_list(0x555558c0c660, 24)     = 0
rseq(0x555558c0cca0, 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-executor2220127092", 4096) = 28
getrandom("\x30\xbd\xf0\x9e\x68\xa4\x63\x36", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555558c0cd00
brk(0x555558c2dd00)                     = 0x555558c2dd00
brk(0x555558c2e000)                     = 0x555558c2e000
mprotect(0x7f765a8a4000, 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.tURkdt", 0700)       = 0
chmod("./syzkaller.tURkdt", 0777)       = 0
chdir("./syzkaller.tURkdt")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555558c0c650) = 283
./strace-static-x86_64: Process 283 attached
[pid   283] set_robust_list(0x555558c0c660, 24) = 0
[pid   283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   283] getppid()                   = 0
[pid   283] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   283] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   283] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   283] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   283] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   283] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   283] unshare(CLONE_NEWNS)        = 0
[pid   283] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   283] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   283] unshare(CLONE_NEWCGROUP)    = 0
[pid   283] unshare(CLONE_NEWUTS)       = 0
[pid   283] unshare(CLONE_SYSVSEM)      = 0
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   283] getpid()                    = 1
[pid   283] 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   283] 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   283] unshare(CLONE_NEWNET)       = 0
[pid   283] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   283] write(3, "0 65535", 7)      = 7
[pid   283] close(3)                    = 0
[pid   283] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   283] write(3, "100000", 6)       = 6
[pid   283] close(3)                    = 0
[pid   283] mkdir("./syz-tmp", 0777)    = 0
[   32.563334][   T24] audit: type=1400 audit(1754909347.890:64): avc:  denied  { execmem } for  pid=282 comm="syz-executor222" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   32.584908][   T24] audit: type=1400 audit(1754909347.900:65): avc:  denied  { mounton } for  pid=283 comm="syz-executor222" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   283] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   283] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   283] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[   32.627119][   T24] audit: type=1400 audit(1754909347.960:66): avc:  denied  { mounton } for  pid=283 comm="syz-executor222" path="/root/syzkaller.tURkdt/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   32.652218][   T24] audit: type=1400 audit(1754909347.960:67): avc:  denied  { mount } for  pid=283 comm="syz-executor222" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   283] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   283] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   283] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   283] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   283] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   283] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   283] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   283] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   283] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   283] 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   283] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   283] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   283] 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   283] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   283] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   283] chdir("/")                  = 0
[pid   283] umount2("./pivot", MNT_DETACH) = 0
[pid   283] chroot("./newroot")         = 0
[pid   283] chdir("/")                  = 0
[pid   283] mkdir("/dev/gadgetfs", 0777) = 0
[   32.677759][   T24] audit: type=1400 audit(1754909348.010:68): avc:  denied  { mounton } for  pid=283 comm="syz-executor222" path="/root/syzkaller.tURkdt/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
[   32.703911][   T24] audit: type=1400 audit(1754909348.010:69): avc:  denied  { mount } for  pid=283 comm="syz-executor222" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[pid   283] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   283] mkdir("/dev/binderfs", 0777) = 0
[pid   283] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   283] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   283] mkdir("./0", 0777)          = 0
[pid   283] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555558c0c650) = 2
./strace-static-x86_64: Process 284 attached
[pid   284] set_robust_list(0x555558c0c660, 24) = 0
[pid   284] chdir("./0")                = 0
[pid   284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   284] setpgid(0, 0)               = 0
[pid   284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   284] write(3, "1000", 4)         = 4
[pid   284] close(3)                    = 0
[pid   284] symlink("/dev/binderfs", "./binderfs") = 0
[pid   284] write(1, "executing program\n", 18executing program
) = 18
[pid   284] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   284] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   284] mount(".", "./file0/../file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   284] 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   284] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   284] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   284] close(29)                   = -1 EBADF (Bad file descriptor)
[   32.710648][  T283] request_module fs-gadgetfs succeeded, but still no fs?
[   32.726600][   T24] audit: type=1400 audit(1754909348.010:70): avc:  denied  { mounton } for  pid=283 comm="syz-executor222" path="/root/syzkaller.tURkdt/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
[pid   284] exit_group(0)               = ?
[pid   284] +++ exited with 0 +++
[pid   283] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   283] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   283] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   283] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(3, 0x555558c0d6f0 /* 4 entries */, 32768) = 112
[pid   283] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   283] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   283] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
[pid   283] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   283] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(4, 0x555558c15730 /* 4 entries */, 32768) = 112
[pid   283] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   283] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] newfstatat(AT_FDCWD, "./0/file0/file0", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   283] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] openat(AT_FDCWD, "./0/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   283] newfstatat(5, "", {st_mode=S_IFDIR|000, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(5, 0x555558c1d770 /* 4 entries */, 32768) = 112
[pid   283] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] newfstatat(AT_FDCWD, "./0/file0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   283] umount2("./0/file0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] openat(AT_FDCWD, "./0/file0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   283] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(6, 0x555558c257b0 /* 2 entries */, 32768) = 48
[pid   283] getdents64(6, 0x555558c257b0 /* 0 entries */, 32768) = 0
[pid   283] close(6)                    = 0
[pid   283] rmdir("./0/file0/file0/.incomplete") = 0
[pid   283] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] newfstatat(AT_FDCWD, "./0/file0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   283] umount2("./0/file0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] openat(AT_FDCWD, "./0/file0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
[pid   283] newfstatat(6, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(6, 0x555558c257b0 /* 2 entries */, 32768) = 48
[pid   283] getdents64(6, 0x555558c257b0 /* 0 entries */, 32768) = 0
[pid   283] close(6)                    = 0
[pid   283] rmdir("./0/file0/file0/.index") = 0
[pid   283] getdents64(5, 0x555558c1d770 /* 0 entries */, 32768) = 0
[pid   283] close(5)                    = 0
[pid   283] rmdir("./0/file0/file0")    = -1 EBUSY (Device or resource busy)
[pid   283] umount2("./0/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[   32.760942][   T24] audit: type=1400 audit(1754909348.010:71): avc:  denied  { mounton } for  pid=283 comm="syz-executor222" path="/root/syzkaller.tURkdt/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14454 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   32.789574][   T24] audit: type=1400 audit(1754909348.020:72): avc:  denied  { unmount } for  pid=283 comm="syz-executor222" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[pid   283] exit_group(1)               = ?
[   32.810672][   T24] audit: type=1400 audit(1754909348.040:73): avc:  denied  { mounton } for  pid=283 comm="syz-executor222" path="/dev/gadgetfs" dev="devtmpfs" ino=517 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   32.835391][  T283] ------------[ cut here ]------------
[   32.841088][  T283] WARNING: CPU: 0 PID: 283 at fs/inode.c:304 drop_nlink+0xc5/0x110
[   32.849351][  T283] Modules linked in:
[   32.853476][  T283] CPU: 0 PID: 283 Comm: syz-executor222 Not tainted 5.10.240-syzkaller #0
[   32.862961][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   32.873459][  T283] RIP: 0010:drop_nlink+0xc5/0x110
[   32.878623][  T283] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 83 23 f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 eb 31 b8 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   32.898581][  T283] RSP: 0018:ffffc90000ba7b68 EFLAGS: 00010293
[   32.904797][  T283] RAX: ffffffff81ab6e85 RBX: ffff88811a2c19c0 RCX: ffff888104dda780
[   32.913016][  T283] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   32.921229][  T283] RBP: ffffc90000ba7b90 R08: 0000000000000004 R09: 0000000000000003
[   32.929786][  T283] R10: fffff52000174f5c R11: 1ffff92000174f5c R12: dffffc0000000000
[   32.938098][  T283] R13: 1ffff11023458341 R14: ffff88811a2c1a08 R15: 0000000000000000
[   32.946304][  T283] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   32.955468][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.962181][  T283] CR2: 00007f765a8ab1b0 CR3: 000000000620f000 CR4: 00000000003506b0
[   32.970421][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.978683][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.987178][  T283] Call Trace:
[   32.990871][  T283]  shmem_rmdir+0x5b/0x90
[   32.995382][  T283]  vfs_rmdir+0x1b3/0x3e0
[   33.000048][  T283]  incfs_kill_sb+0xfe/0x210
[   33.004677][  T283]  deactivate_locked_super+0xa0/0x100
[   33.010429][  T283]  deactivate_super+0xaf/0xe0
[   33.015396][  T283]  cleanup_mnt+0x446/0x500
[   33.019950][  T283]  __cleanup_mnt+0x19/0x20
[   33.024624][  T283]  task_work_run+0x127/0x190
[   33.029514][  T283]  do_exit+0xa4f/0x2480
[   33.034168][  T283]  ? put_task_struct+0x90/0x90
[   33.039245][  T283]  ? ptrace_notify+0x1c4/0x250
[   33.044279][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   33.049579][  T283]  do_group_exit+0x141/0x310
[   33.054470][  T283]  __x64_sys_exit_group+0x3f/0x40
[   33.059731][  T283]  do_syscall_64+0x31/0x40
[   33.064215][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   33.070265][  T283] RIP: 0033:0x7f765a82e789
[   33.074727][  T283] Code: Unable to access opcode bytes at RIP 0x7f765a82e75f.
[   33.082193][  T283] RSP: 002b:00007ffcdbfc9ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   33.090800][  T283] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f765a82e789
[   33.099115][  T283] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   33.107472][  T283] RBP: 00007f765a8aa350 R08: ffffffffffffffb8 R09: 0000000000000000
[   33.115535][  T283] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f765a8aa350
[   33.123749][  T283] R13: 0000000000000000 R14: 00007f765a8aada0 R15: 00007f765a7ff760
[   33.131821][  T283] ---[ end trace 1c2f746eddbed3ed ]---
[   33.137584][  T283] ==================================================================
[   33.146041][  T283] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   33.152429][  T283] Write of size 4 at addr 0000000000000170 by task syz-executor222/283
[   33.160677][  T283] 
[   33.163057][  T283] CPU: 0 PID: 283 Comm: syz-executor222 Tainted: G        W         5.10.240-syzkaller #0
[   33.173083][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   33.183170][  T283] Call Trace:
[   33.186765][  T283]  __dump_stack+0x21/0x24
[   33.191486][  T283]  dump_stack_lvl+0x169/0x1d8
[   33.196668][  T283]  ? thaw_kernel_threads+0x220/0x220
[   33.202210][  T283]  ? show_regs_print_info+0x18/0x18
[   33.207507][  T283]  ? _raw_spin_lock+0x8e/0xe0
[   33.212319][  T283]  ? _raw_spin_trylock_bh+0x130/0x130
[   33.218055][  T283]  ? ihold+0x20/0x60
[   33.222417][  T283]  kasan_report+0xd8/0x130
[   33.226868][  T283]  ? ihold+0x20/0x60
[   33.231757][  T283]  kasan_check_range+0x280/0x290
[   33.236886][  T283]  __kasan_check_write+0x14/0x20
[   33.241956][  T283]  ihold+0x20/0x60
[   33.245721][  T283]  vfs_rmdir+0x247/0x3e0
[   33.250009][  T283]  incfs_kill_sb+0xfe/0x210
[   33.254559][  T283]  deactivate_locked_super+0xa0/0x100
[   33.260064][  T283]  deactivate_super+0xaf/0xe0
[   33.264906][  T283]  cleanup_mnt+0x446/0x500
[   33.269445][  T283]  __cleanup_mnt+0x19/0x20
[   33.273903][  T283]  task_work_run+0x127/0x190
[   33.278956][  T283]  do_exit+0xa4f/0x2480
[   33.283183][  T283]  ? put_task_struct+0x90/0x90
[   33.288469][  T283]  ? ptrace_notify+0x1c4/0x250
[   33.293272][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   33.298816][  T283]  do_group_exit+0x141/0x310
[   33.303734][  T283]  __x64_sys_exit_group+0x3f/0x40
[   33.309277][  T283]  do_syscall_64+0x31/0x40
[   33.314090][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   33.320008][  T283] RIP: 0033:0x7f765a82e789
[   33.324445][  T283] Code: Unable to access opcode bytes at RIP 0x7f765a82e75f.
[   33.331834][  T283] RSP: 002b:00007ffcdbfc9ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   33.340419][  T283] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f765a82e789
[   33.348451][  T283] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   33.356732][  T283] RBP: 00007f765a8aa350 R08: ffffffffffffffb8 R09: 0000000000000000
[   33.365085][  T283] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f765a8aa350
[   33.373150][  T283] R13: 0000000000000000 R14: 00007f765a8aada0 R15: 00007f765a7ff760
[   33.381285][  T283] ==================================================================
[   33.389829][  T283] Disabling lock debugging due to kernel taint
[   33.396303][  T283] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   33.404275][  T283] #PF: supervisor write access in kernel mode
[   33.410579][  T283] #PF: error_code(0x0002) - not-present page
[   33.417041][  T283] PGD 0 P4D 0 
[   33.420505][  T283] Oops: 0002 [#1] PREEMPT SMP KASAN
[   33.425759][  T283] CPU: 0 PID: 283 Comm: syz-executor222 Tainted: G    B   W         5.10.240-syzkaller #0
[   33.435873][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   33.446212][  T283] RIP: 0010:ihold+0x26/0x60
[   33.450780][  T283] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 01 2a b8 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 70 1b f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 81
[   33.470995][  T283] RSP: 0018:ffffc90000ba7ba8 EFLAGS: 00010246
[   33.477135][  T283] RAX: ffff888104dda700 RBX: 0000000000000000 RCX: 0000000000000282
[   33.485264][  T283] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   33.493514][  T283] RBP: ffffc90000ba7bb8 R08: 0000000000000004 R09: 0000000000000003
[   33.501635][  T283] R10: fffffbfff0d8ec48 R11: 1ffffffff0d8ec48 R12: 1ffff110243084d2
[   33.509667][  T283] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   33.517707][  T283] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   33.526801][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.533530][  T283] CR2: 0000000000000170 CR3: 000000000620f000 CR4: 00000000003506b0
[   33.541563][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   33.549690][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   33.557706][  T283] Call Trace:
[   33.561153][  T283]  vfs_rmdir+0x247/0x3e0
[   33.565567][  T283]  incfs_kill_sb+0xfe/0x210
[   33.570135][  T283]  deactivate_locked_super+0xa0/0x100
[   33.575751][  T283]  deactivate_super+0xaf/0xe0
[   33.580487][  T283]  cleanup_mnt+0x446/0x500
[   33.584984][  T283]  __cleanup_mnt+0x19/0x20
[   33.589560][  T283]  task_work_run+0x127/0x190
[   33.594563][  T283]  do_exit+0xa4f/0x2480
[   33.598808][  T283]  ? put_task_struct+0x90/0x90
[   33.603839][  T283]  ? ptrace_notify+0x1c4/0x250
[   33.608665][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   33.613843][  T283]  do_group_exit+0x141/0x310
[   33.618515][  T283]  __x64_sys_exit_group+0x3f/0x40
[   33.623697][  T283]  do_syscall_64+0x31/0x40
[   33.628293][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   33.634255][  T283] RIP: 0033:0x7f765a82e789
[   33.638807][  T283] Code: Unable to access opcode bytes at RIP 0x7f765a82e75f.
[   33.646495][  T283] RSP: 002b:00007ffcdbfc9ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   33.655185][  T283] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f765a82e789
[   33.663305][  T283] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
[   33.671609][  T283] RBP: 00007f765a8aa350 R08: ffffffffffffffb8 R09: 0000000000000000
[   33.679952][  T283] R10: 0000000000001000 R11: 0000000000000246 R12: 00007f765a8aa350
[   33.688080][  T283] R13: 0000000000000000 R14: 00007f765a8aada0 R15: 00007f765a7ff760
[   33.696372][  T283] Modules linked in:
[   33.700618][  T283] CR2: 0000000000000170
[   33.704844][  T283] ---[ end trace 1c2f746eddbed3ee ]---
[   33.710385][  T283] RIP: 0010:ihold+0x26/0x60
[   33.715130][  T283] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 01 2a b8 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 70 1b f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 81
[   33.735056][  T283] RSP: 0018:ffffc90000ba7ba8 EFLAGS: 00010246
[   33.741211][  T283] RAX: ffff888104dda700 RBX: 0000000000000000 RCX: 0000000000000282
[   33.749646][  T283] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   33.758040][  T283] RBP: ffffc90000ba7bb8 R08: 0000000000000004 R09: 0000000000000003
[   33.766363][  T283] R10: fffffbfff0d8ec48 R11: 1ffffffff0d8ec48 R12: 1ffff110243084d2
[   33.774529][  T283] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   33.783275][  T283] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   33.792360][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.799434][  T283] CR2: 0000000000000170 CR3: 000000000620f000 CR4: 00000000003506b0
[   33.807550][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   33.815748][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   33.823767][  T283] Kernel panic - not syncing: Fatal exception
[   33.830231][  T283] Kernel Offset: disabled
[   33.834587][  T283] Rebooting in 86400 seconds..