./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2929417318

<...>
Warning: Permanently added '10.128.1.224' (ED25519) to the list of known hosts.
execve("./syz-executor2929417318", ["./syz-executor2929417318"], 0x7fffaa5dcde0 /* 10 vars */) = 0
brk(NULL)                               = 0x5555780f9000
brk(0x5555780f9d00)                     = 0x5555780f9d00
arch_prctl(ARCH_SET_FS, 0x5555780f9380) = 0
set_tid_address(0x5555780f9650)         = 282
set_robust_list(0x5555780f9660, 24)     = 0
rseq(0x5555780f9ca0, 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-executor2929417318", 4096) = 28
getrandom("\x6e\xa8\x0b\x3a\x4e\x08\x06\x04", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555780f9d00
brk(0x55557811ad00)                     = 0x55557811ad00
brk(0x55557811b000)                     = 0x55557811b000
mprotect(0x7fea879ca000, 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.udyl3J", 0700)       = 0
chmod("./syzkaller.udyl3J", 0777)       = 0
chdir("./syzkaller.udyl3J")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555780f9650) = 283
./strace-static-x86_64: Process 283 attached
[pid   283] set_robust_list(0x5555780f9660, 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
[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
[   20.080966][   T24] audit: type=1400 audit(1751686129.010:64): avc:  denied  { execmem } for  pid=282 comm="syz-executor292" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   20.086319][   T24] audit: type=1400 audit(1751686129.030:65): avc:  denied  { mounton } for  pid=283 comm="syz-executor292" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   20.101521][   T24] audit: type=1400 audit(1751686129.030:66): avc:  denied  { mounton } for  pid=283 comm="syz-executor292" path="/root/syzkaller.udyl3J/syz-tmp" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir 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=0x5555780f9650) = 2
./strace-static-x86_64: Process 284 attached
[pid   284] set_robust_list(0x5555780f9660, 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", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   20.126005][   T24] audit: type=1400 audit(1751686129.030:67): avc:  denied  { mount } for  pid=283 comm="syz-executor292" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   20.127759][  T283] request_module fs-gadgetfs succeeded, but still no fs?
[   20.148216][   T24] audit: type=1400 audit(1751686129.050:68): avc:  denied  { mounton } for  pid=283 comm="syz-executor292" path="/root/syzkaller.udyl3J/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
[pid   284] mount("./file0", "./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, 0x5555780fa6f0 /* 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, 0x555578102730 /* 2 entries */, 32768) = 48
[pid   283] getdents64(4, 0x555578102730 /* 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, 0x555578102730 /* 2 entries */, 32768) = 48
[pid   283] getdents64(4, 0x555578102730 /* 0 entries */, 32768) = 0
[pid   283] close(4)                    = 0
[pid   283] rmdir("./0/.index")         = 0
[   20.160567][  T284] incfs: ino conflict with backing FS 9
[   20.180356][   T24] audit: type=1400 audit(1751686129.050:69): avc:  denied  { mount } for  pid=283 comm="syz-executor292" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   20.207916][   T24] audit: type=1400 audit(1751686129.050:70): avc:  denied  { mounton } for  pid=283 comm="syz-executor292" path="/root/syzkaller.udyl3J/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
[   20.207996][  T283] ------------[ cut here ]------------
[   20.234566][   T24] audit: type=1400 audit(1751686129.050:71): avc:  denied  { mounton } for  pid=283 comm="syz-executor292" path="/root/syzkaller.udyl3J/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14635 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   20.240172][  T283] WARNING: CPU: 1 PID: 283 at fs/inode.c:304 drop_nlink+0xc5/0x110
[   20.267505][   T24] audit: type=1400 audit(1751686129.050:72): avc:  denied  { unmount } for  pid=283 comm="syz-executor292" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   20.275418][  T283] Modules linked in:
[   20.294973][   T24] audit: type=1400 audit(1751686129.070:73): avc:  denied  { mounton } for  pid=283 comm="syz-executor292" path="/dev/gadgetfs" dev="devtmpfs" ino=517 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   20.298867][  T283] CPU: 1 PID: 283 Comm: syz-executor292 Not tainted 5.10.238-syzkaller-00008-g59e9a7228857 #0
[   20.331970][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   20.342011][  T283] RIP: 0010:drop_nlink+0xc5/0x110
[   20.347002][  T283] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 a3 23 f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 2b 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
[   20.366603][  T283] RSP: 0018:ffffc9000094fbe8 EFLAGS: 00010293
[   20.372646][  T283] RAX: ffffffff81ab62e5 RBX: ffff888121cd1620 RCX: ffff888106b813c0
[   20.380584][  T283] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   20.388572][  T283] RBP: ffffc9000094fc10 R08: 0000000000000004 R09: 0000000000000003
[   20.396572][  T283] R10: fffff52000129f6c R11: 1ffff92000129f6c R12: dffffc0000000000
[   20.404649][  T283] R13: 1ffff1102439a2cd R14: ffff888121cd1668 R15: 0000000000000000
[   20.412630][  T283] FS:  00005555780f9380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   20.421528][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.428093][  T283] CR2: 000055d35127a748 CR3: 00000001071fb000 CR4: 00000000003506a0
[   20.436044][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.443994][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.451945][  T283] Call Trace:
[   20.455200][  T283]  shmem_rmdir+0x5b/0x90
[   20.459401][  T283]  vfs_rmdir+0x1b3/0x3e0
[   20.463625][  T283]  incfs_kill_sb+0xfe/0x210
[   20.468104][  T283]  deactivate_locked_super+0xa0/0x100
[   20.473465][  T283]  deactivate_super+0xaf/0xe0
[   20.478112][  T283]  cleanup_mnt+0x446/0x500
[   20.482507][  T283]  __cleanup_mnt+0x19/0x20
[   20.486903][  T283]  task_work_run+0x127/0x190
[   20.491456][  T283]  ptrace_notify+0x212/0x250
[   20.496025][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   20.501018][  T283]  ? user_path_at_empty+0x43/0x50
[   20.506022][  T283]  ? __x64_sys_umount+0x125/0x160
[   20.511025][  T283]  ? path_umount+0xf90/0xf90
[   20.515600][  T283]  syscall_exit_work+0x6e/0x140
[   20.520421][  T283]  syscall_exit_to_user_mode+0x5b/0x90
[   20.525855][  T283]  do_syscall_64+0x3d/0x40
[   20.530247][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   20.536115][  T283] RIP: 0033:0x7fea87957ac7
[   20.540513][  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
[   20.560099][  T283] RSP: 002b:00007fff96aaf098 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   20.568493][  T283] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fea87957ac7
[   20.576462][  T283] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff96aaf150
[   20.584411][  T283] RBP: 00007fff96aaf150 R08: 0000000000000000 R09: 0000000000000000
[   20.592368][  T283] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff96ab01c0
[   20.600310][  T283] R13: 00005555780fa6c0 R14: 00007fff96ab01c0 R15: 0000000000000001
[   20.608276][  T283] ---[ end trace 31de7cb7e2ab5080 ]---
[   20.613739][  T283] ==================================================================
[   20.621766][  T283] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   20.627968][  T283] Write of size 4 at addr 0000000000000170 by task syz-executor292/283
[   20.636161][  T283] 
[   20.638459][  T283] CPU: 1 PID: 283 Comm: syz-executor292 Tainted: G        W         5.10.238-syzkaller-00008-g59e9a7228857 #0
[   20.650041][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   20.660057][  T283] Call Trace:
[   20.663318][  T283]  __dump_stack+0x21/0x24
[   20.667613][  T283]  dump_stack_lvl+0x169/0x1d8
[   20.672266][  T283]  ? thaw_kernel_threads+0x220/0x220
[   20.677523][  T283]  ? show_regs_print_info+0x18/0x18
[   20.682688][  T283]  ? _raw_spin_lock+0x8e/0xe0
[   20.687338][  T283]  ? _raw_spin_trylock_bh+0x130/0x130
[   20.692671][  T283]  ? ihold+0x20/0x60
[   20.696528][  T283]  kasan_report+0xd8/0x130
[   20.700904][  T283]  ? ihold+0x20/0x60
[   20.704760][  T283]  kasan_check_range+0x280/0x290
[   20.709656][  T283]  __kasan_check_write+0x14/0x20
[   20.714564][  T283]  ihold+0x20/0x60
[   20.718247][  T283]  vfs_rmdir+0x247/0x3e0
[   20.722452][  T283]  incfs_kill_sb+0xfe/0x210
[   20.726918][  T283]  deactivate_locked_super+0xa0/0x100
[   20.732250][  T283]  deactivate_super+0xaf/0xe0
[   20.736886][  T283]  cleanup_mnt+0x446/0x500
[   20.741261][  T283]  __cleanup_mnt+0x19/0x20
[   20.745654][  T283]  task_work_run+0x127/0x190
[   20.750222][  T283]  ptrace_notify+0x212/0x250
[   20.754772][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   20.759754][  T283]  ? user_path_at_empty+0x43/0x50
[   20.764739][  T283]  ? __x64_sys_umount+0x125/0x160
[   20.769738][  T283]  ? path_umount+0xf90/0xf90
[   20.774301][  T283]  syscall_exit_work+0x6e/0x140
[   20.779118][  T283]  syscall_exit_to_user_mode+0x5b/0x90
[   20.784538][  T283]  do_syscall_64+0x3d/0x40
[   20.788918][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   20.794782][  T283] RIP: 0033:0x7fea87957ac7
[   20.799167][  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
[   20.818742][  T283] RSP: 002b:00007fff96aaf098 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   20.827130][  T283] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fea87957ac7
[   20.835067][  T283] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff96aaf150
[   20.843016][  T283] RBP: 00007fff96aaf150 R08: 0000000000000000 R09: 0000000000000000
[   20.850961][  T283] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff96ab01c0
[   20.858894][  T283] R13: 00005555780fa6c0 R14: 00007fff96ab01c0 R15: 0000000000000001
[   20.866841][  T283] ==================================================================
[   20.874861][  T283] Disabling lock debugging due to kernel taint
[   20.881054][  T283] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   20.888840][  T283] #PF: supervisor write access in kernel mode
[   20.894882][  T283] #PF: error_code(0x0002) - not-present page
[   20.900832][  T283] PGD 0 P4D 0 
[   20.904173][  T283] Oops: 0002 [#1] PREEMPT SMP KASAN
[   20.909418][  T283] CPU: 1 PID: 283 Comm: syz-executor292 Tainted: G    B   W         5.10.238-syzkaller-00008-g59e9a7228857 #0
[   20.921086][  T283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   20.931113][  T283] RIP: 0010:ihold+0x26/0x60
[   20.935579][  T283] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 41 29 b8 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 90 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 c1
[   20.955148][  T283] RSP: 0018:ffffc9000094fc28 EFLAGS: 00010246
[   20.961177][  T283] RAX: ffff888106b81300 RBX: 0000000000000000 RCX: 0000000000000286
[   20.969114][  T283] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   20.977050][  T283] RBP: ffffc9000094fc38 R08: 0000000000000004 R09: 0000000000000003
[   20.984984][  T283] R10: fffffbfff0d8e448 R11: 1ffffffff0d8e448 R12: 1ffff110238fe97c
[   20.992930][  T283] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   21.000879][  T283] FS:  00005555780f9380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   21.009772][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.016320][  T283] CR2: 0000000000000170 CR3: 00000001071fb000 CR4: 00000000003506a0
[   21.024264][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   21.032211][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   21.040141][  T283] Call Trace:
[   21.043395][  T283]  vfs_rmdir+0x247/0x3e0
[   21.047601][  T283]  incfs_kill_sb+0xfe/0x210
[   21.052066][  T283]  deactivate_locked_super+0xa0/0x100
[   21.057395][  T283]  deactivate_super+0xaf/0xe0
[   21.062034][  T283]  cleanup_mnt+0x446/0x500
[   21.066421][  T283]  __cleanup_mnt+0x19/0x20
[   21.070811][  T283]  task_work_run+0x127/0x190
[   21.075379][  T283]  ptrace_notify+0x212/0x250
[   21.079938][  T283]  ? do_notify_parent+0x7e0/0x7e0
[   21.085280][  T283]  ? user_path_at_empty+0x43/0x50
[   21.090285][  T283]  ? __x64_sys_umount+0x125/0x160
[   21.095269][  T283]  ? path_umount+0xf90/0xf90
[   21.099825][  T283]  syscall_exit_work+0x6e/0x140
[   21.104637][  T283]  syscall_exit_to_user_mode+0x5b/0x90
[   21.110060][  T283]  do_syscall_64+0x3d/0x40
[   21.114468][  T283]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   21.120321][  T283] RIP: 0033:0x7fea87957ac7
[   21.124699][  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
[   21.144276][  T283] RSP: 002b:00007fff96aaf098 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   21.152646][  T283] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fea87957ac7
[   21.160593][  T283] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff96aaf150
[   21.168536][  T283] RBP: 00007fff96aaf150 R08: 0000000000000000 R09: 0000000000000000
[   21.176474][  T283] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff96ab01c0
[   21.184410][  T283] R13: 00005555780fa6c0 R14: 00007fff96ab01c0 R15: 0000000000000001
[   21.192346][  T283] Modules linked in:
[   21.196205][  T283] CR2: 0000000000000170
[   21.200320][  T283] ---[ end trace 31de7cb7e2ab5081 ]---
[   21.205745][  T283] RIP: 0010:ihold+0x26/0x60
[   21.210209][  T283] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 41 29 b8 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 90 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 c1
[   21.229789][  T283] RSP: 0018:ffffc9000094fc28 EFLAGS: 00010246
[   21.235820][  T283] RAX: ffff888106b81300 RBX: 0000000000000000 RCX: 0000000000000286
[   21.243755][  T283] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   21.251690][  T283] RBP: ffffc9000094fc38 R08: 0000000000000004 R09: 0000000000000003
[   21.259623][  T283] R10: fffffbfff0d8e448 R11: 1ffffffff0d8e448 R12: 1ffff110238fe97c
[   21.267565][  T283] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   21.275509][  T283] FS:  00005555780f9380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   21.284418][  T283] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.290989][  T283] CR2: 0000000000000170 CR3: 00000001071fb000 CR4: 00000000003506a0
[   21.298939][  T283] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   21.306877][  T283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   21.314811][  T283] Kernel panic - not syncing: Fatal exception
[   21.320994][  T283] Kernel Offset: disabled
[   21.325290][  T283] Rebooting in 86400 seconds..