./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2299634913

<...>
Warning: Permanently added '10.128.0.33' (ED25519) to the list of known hosts.
execve("./syz-executor2299634913", ["./syz-executor2299634913"], 0x7fffce8e3e80 /* 10 vars */) = 0
brk(NULL)                               = 0x55555c597000
brk(0x55555c597d00)                     = 0x55555c597d00
arch_prctl(ARCH_SET_FS, 0x55555c597380) = 0
set_tid_address(0x55555c597650)         = 282
set_robust_list(0x55555c597660, 24)     = 0
rseq(0x55555c597ca0, 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-executor2299634913", 4096) = 28
getrandom("\x3d\xdd\x7f\xbb\xc3\xb8\x84\x58", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555c597d00
brk(0x55555c5b8d00)                     = 0x55555c5b8d00
brk(0x55555c5b9000)                     = 0x55555c5b9000
mprotect(0x7f9434da7000, 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.b9dZc2", 0700)       = 0
chmod("./syzkaller.b9dZc2", 0777)       = 0
chdir("./syzkaller.b9dZc2")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555c597650) = 283
./strace-static-x86_64: Process 283 attached
[pid   283] set_robust_list(0x55555c597660, 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
[pid   283] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[   23.358979][   T24] audit: type=1400 audit(1752876372.940:64): avc:  denied  { execmem } for  pid=282 comm="syz-executor229" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   23.378972][   T24] audit: type=1400 audit(1752876372.960:65): avc:  denied  { mounton } for  pid=283 comm="syz-executor229" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   283] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   283] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[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
[   23.406536][   T24] audit: type=1400 audit(1752876372.990:66): avc:  denied  { mounton } for  pid=283 comm="syz-executor229" path="/root/syzkaller.b9dZc2/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   23.431814][   T24] audit: type=1400 audit(1752876372.990:67): avc:  denied  { mount } for  pid=283 comm="syz-executor229" 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("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=0x55555c597650) = 2
./strace-static-x86_64: Process 284 attached
[pid   284] set_robust_list(0x55555c597660, 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
executing program
[pid   284] symlink("/dev/binderfs", "./binderfs") = 0
[pid   284] write(1, "executing program\n", 18) = 18
[pid   284] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   284] mount("", "./file0", "incremental-fs", 0, 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)
[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=1} ---
[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=120, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(3, 0x55555c5986f0 /* 6 entries */, 32768) = 176
[pid   283] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   283] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   283] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(4, 0x55555c5a0730 /* 2 entries */, 32768) = 48
[pid   283] getdents64(4, 0x55555c5a0730 /* 0 entries */, 32768) = 0
[pid   283] close(4)                    = 0
[pid   283] rmdir("./0/.incomplete")    = 0
[pid   283] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   283] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   283] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   283] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   283] getdents64(4, 0x55555c5a0730 /* 2 entries */, 32768) = 48
[pid   283] getdents64(4, 0x55555c5a0730 /* 0 entries */, 32768) = 0
[pid   283] close(4)                    = 0
[pid   283] rmdir("./0/.index")         = 0
[   23.433869][  T283] request_module fs-gadgetfs succeeded, but still no fs?
[   23.454773][   T24] audit: type=1400 audit(1752876373.000:68): avc:  denied  { mounton } for  pid=283 comm="syz-executor229" path="/root/syzkaller.b9dZc2/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
[   23.471209][  T284] incfs: ino conflict with backing FS 9
[   23.487283][   T24] audit: type=1400 audit(1752876373.000:69): avc:  denied  { mount } for  pid=283 comm="syz-executor229" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   23.514365][  T283] ------------[ cut here ]------------
[   23.514778][   T24] audit: type=1400 audit(1752876373.000:70): avc:  denied  { mounton } for  pid=283 comm="syz-executor229" path="/root/syzkaller.b9dZc2/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
[   23.520015][  T283] WARNING: CPU: 0 PID: 283 at fs/inode.c:304 drop_nlink+0xc5/0x110
[   23.547225][   T24] audit: type=1400 audit(1752876373.000:71): avc:  denied  { mounton } for  pid=283 comm="syz-executor229" path="/root/syzkaller.b9dZc2/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=13698 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   23.555276][  T283] Modules linked in:
[   23.583352][   T24] audit: type=1400 audit(1752876373.000:72): avc:  denied  { unmount } for  pid=283 comm="syz-executor229" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   23.583382][  T283] 
[   23.587354][   T24] audit: type=1400 audit(1752876373.020:73): avc:  denied  { mounton } for  pid=283 comm="syz-executor229" path="/dev/gadgetfs" dev="devtmpfs" ino=517 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   23.607472][  T283] CPU: 0 PID: 283 Comm: syz-executor229 Not tainted 5.10.239-syzkaller #0
[   23.641760][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   23.652062][  T283] RIP: 0010:drop_nlink+0xc5/0x110
[   23.657106][  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 4b 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
[   23.677002][  T283] RSP: 0018:ffffc90000b17be8 EFLAGS: 00010293
[   23.683124][  T283] RAX: ffffffff81ab63f5 RBX: ffff888121bc2100 RCX: ffff8881063ae2c0
[   23.691351][  T283] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.699545][  T283] RBP: ffffc90000b17c10 R08: 0000000000000004 R09: 0000000000000003
[   23.707564][  T283] R10: fffff52000162f6c R11: 1ffff92000162f6c R12: dffffc0000000000
[   23.715597][  T283] R13: 1ffff11024378429 R14: ffff888121bc2148 R15: 0000000000000000
[   23.723611][  T283] FS:  000055555c597380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   23.733089][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.739776][  T283] CR2: 000056261823f748 CR3: 00000001057db000 CR4: 00000000003506b0
[   23.748085][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.756190][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.764720][  T283] Call Trace:
[   23.768029][  T283]  shmem_rmdir+0x5b/0x90
[   23.772307][  T283]  vfs_rmdir+0x1b3/0x3e0
[   23.776727][  T283]  incfs_kill_sb+0xfe/0x210
[   23.781292][  T283]  deactivate_locked_super+0xa0/0x100
[   23.786678][  T283]  deactivate_super+0xaf/0xe0
[   23.791398][  T283]  cleanup_mnt+0x446/0x500
[   23.795821][  T283]  __cleanup_mnt+0x19/0x20
[   23.800258][  T283]  task_work_run+0x127/0x190
[   23.804860][  T283]  ptrace_notify+0x212/0x250
[   23.809495][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   23.814660][  T283]  ? user_path_at_empty+0x43/0x50
[   23.819693][  T283]  ? __x64_sys_umount+0x125/0x160
[   23.824750][  T283]  ? path_umount+0xf90/0xf90
[   23.829446][  T283]  syscall_exit_work+0x6e/0x140
[   23.834360][  T283]  syscall_exit_to_user_mode+0x5b/0x90
[   23.839906][  T283]  do_syscall_64+0x3d/0x40
[   23.844438][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   23.850569][  T283] RIP: 0033:0x7f9434d34a87
[   23.855193][  T283] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   23.875562][  T283] RSP: 002b:00007ffd60c3d6b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   23.884110][  T283] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9434d34a87
[   23.892173][  T283] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd60c3d770
[   23.900195][  T283] RBP: 00007ffd60c3d770 R08: 0000000000000000 R09: 0000000000000000
[   23.908262][  T283] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd60c3e7e0
[   23.916623][  T283] R13: 000055555c5986c0 R14: 00007ffd60c3e7e0 R15: 0000000000000001
[   23.924641][  T283] ---[ end trace d9998e1e803bdb11 ]---
[   23.930209][  T283] ==================================================================
[   23.938292][  T283] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   23.944557][  T283] Write of size 4 at addr 0000000000000170 by task syz-executor229/283
[   23.952864][  T283] 
[   23.955186][  T283] CPU: 0 PID: 283 Comm: syz-executor229 Tainted: G        W         5.10.239-syzkaller #0
[   23.965077][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   23.975124][  T283] Call Trace:
[   23.978550][  T283]  __dump_stack+0x21/0x24
[   23.982970][  T283]  dump_stack_lvl+0x169/0x1d8
[   23.987726][  T283]  ? thaw_kernel_threads+0x220/0x220
[   23.993110][  T283]  ? show_regs_print_info+0x18/0x18
[   23.998311][  T283]  ? _raw_spin_lock+0x8e/0xe0
[   24.003339][  T283]  ? _raw_spin_trylock_bh+0x130/0x130
[   24.008716][  T283]  ? ihold+0x20/0x60
[   24.012629][  T283]  kasan_report+0xd8/0x130
[   24.017038][  T283]  ? ihold+0x20/0x60
[   24.020926][  T283]  kasan_check_range+0x280/0x290
[   24.025970][  T283]  __kasan_check_write+0x14/0x20
[   24.031308][  T283]  ihold+0x20/0x60
[   24.035019][  T283]  vfs_rmdir+0x247/0x3e0
[   24.039345][  T283]  incfs_kill_sb+0xfe/0x210
[   24.044001][  T283]  deactivate_locked_super+0xa0/0x100
[   24.049468][  T283]  deactivate_super+0xaf/0xe0
[   24.054235][  T283]  cleanup_mnt+0x446/0x500
[   24.059220][  T283]  __cleanup_mnt+0x19/0x20
[   24.063809][  T283]  task_work_run+0x127/0x190
[   24.068535][  T283]  ptrace_notify+0x212/0x250
[   24.073237][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   24.078350][  T283]  ? user_path_at_empty+0x43/0x50
[   24.083367][  T283]  ? __x64_sys_umount+0x125/0x160
[   24.088391][  T283]  ? path_umount+0xf90/0xf90
[   24.093000][  T283]  syscall_exit_work+0x6e/0x140
[   24.097928][  T283]  syscall_exit_to_user_mode+0x5b/0x90
[   24.103374][  T283]  do_syscall_64+0x3d/0x40
[   24.107888][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.113872][  T283] RIP: 0033:0x7f9434d34a87
[   24.118285][  T283] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   24.138862][  T283] RSP: 002b:00007ffd60c3d6b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.147455][  T283] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9434d34a87
[   24.155890][  T283] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd60c3d770
[   24.164032][  T283] RBP: 00007ffd60c3d770 R08: 0000000000000000 R09: 0000000000000000
[   24.172211][  T283] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd60c3e7e0
[   24.180184][  T283] R13: 000055555c5986c0 R14: 00007ffd60c3e7e0 R15: 0000000000000001
[   24.188607][  T283] ==================================================================
[   24.196837][  T283] Disabling lock debugging due to kernel taint
[   24.203125][  T283] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   24.211029][  T283] #PF: supervisor write access in kernel mode
[   24.217315][  T283] #PF: error_code(0x0002) - not-present page
[   24.223304][  T283] PGD 0 P4D 0 
[   24.226773][  T283] Oops: 0002 [#1] PREEMPT SMP KASAN
[   24.232050][  T283] CPU: 0 PID: 283 Comm: syz-executor229 Tainted: G    B   W         5.10.239-syzkaller #0
[   24.242218][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   24.252280][  T283] RIP: 0010:ihold+0x26/0x60
[   24.256868][  T283] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 61 29 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 e1
[   24.276731][  T283] RSP: 0018:ffffc90000b17c28 EFLAGS: 00010246
[   24.282801][  T283] RAX: ffff8881063ae200 RBX: 0000000000000000 RCX: 0000000000000286
[   24.291299][  T283] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   24.299266][  T283] RBP: ffffc90000b17c38 R08: 0000000000000004 R09: 0000000000000003
[   24.307357][  T283] R10: fffffbfff0d8e448 R11: 1ffffffff0d8e448 R12: 1ffff110242008d2
[   24.315432][  T283] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   24.323590][  T283] FS:  000055555c597380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.332602][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.339440][  T283] CR2: 0000000000000170 CR3: 00000001057db000 CR4: 00000000003506b0
[   24.347639][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.355786][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.363838][  T283] Call Trace:
[   24.367128][  T283]  vfs_rmdir+0x247/0x3e0
[   24.371379][  T283]  incfs_kill_sb+0xfe/0x210
[   24.375890][  T283]  deactivate_locked_super+0xa0/0x100
[   24.381369][  T283]  deactivate_super+0xaf/0xe0
[   24.386050][  T283]  cleanup_mnt+0x446/0x500
[   24.390461][  T283]  __cleanup_mnt+0x19/0x20
[   24.395131][  T283]  task_work_run+0x127/0x190
[   24.399979][  T283]  ptrace_notify+0x212/0x250
[   24.404577][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   24.409707][  T283]  ? user_path_at_empty+0x43/0x50
[   24.414912][  T283]  ? __x64_sys_umount+0x125/0x160
[   24.419928][  T283]  ? path_umount+0xf90/0xf90
[   24.424650][  T283]  syscall_exit_work+0x6e/0x140
[   24.429584][  T283]  syscall_exit_to_user_mode+0x5b/0x90
[   24.435214][  T283]  do_syscall_64+0x3d/0x40
[   24.439840][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   24.445726][  T283] RIP: 0033:0x7f9434d34a87
[   24.450134][  T283] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   24.469824][  T283] RSP: 002b:00007ffd60c3d6b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.478454][  T283] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9434d34a87
[   24.486492][  T283] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd60c3d770
[   24.494572][  T283] RBP: 00007ffd60c3d770 R08: 0000000000000000 R09: 0000000000000000
[   24.502830][  T283] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd60c3e7e0
[   24.510922][  T283] R13: 000055555c5986c0 R14: 00007ffd60c3e7e0 R15: 0000000000000001
[   24.518981][  T283] Modules linked in:
[   24.522913][  T283] CR2: 0000000000000170
[   24.527188][  T283] ---[ end trace d9998e1e803bdb12 ]---
[   24.532650][  T283] RIP: 0010:ihold+0x26/0x60
[   24.537148][  T283] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 61 29 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 e1
[   24.556772][  T283] RSP: 0018:ffffc90000b17c28 EFLAGS: 00010246
[   24.563279][  T283] RAX: ffff8881063ae200 RBX: 0000000000000000 RCX: 0000000000000286
[   24.571262][  T283] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   24.579242][  T283] RBP: ffffc90000b17c38 R08: 0000000000000004 R09: 0000000000000003
[   24.587522][  T283] R10: fffffbfff0d8e448 R11: 1ffffffff0d8e448 R12: 1ffff110242008d2
[   24.595490][  T283] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   24.603565][  T283] FS:  000055555c597380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.612499][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.619600][  T283] CR2: 0000000000000170 CR3: 00000001057db000 CR4: 00000000003506b0
[   24.627903][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.635870][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.643837][  T283] Kernel panic - not syncing: Fatal exception
[   24.650082][  T283] Kernel Offset: disabled
[   24.654407][  T283] Rebooting in 86400 seconds..