./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3098703460

<...>
Warning: Permanently added '10.128.0.10' (ED25519) to the list of known hosts.
execve("./syz-executor3098703460", ["./syz-executor3098703460"], 0x7ffd166622e0 /* 10 vars */) = 0
brk(NULL)                               = 0x5555593d4000
brk(0x5555593d4d00)                     = 0x5555593d4d00
arch_prctl(ARCH_SET_FS, 0x5555593d4380) = 0
set_tid_address(0x5555593d4650)         = 295
set_robust_list(0x5555593d4660, 24)     = 0
rseq(0x5555593d4ca0, 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-executor3098703460", 4096) = 28
getrandom("\x20\xac\xe6\x51\x3f\xb2\xd6\x4d", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555593d4d00
brk(0x5555593f5d00)                     = 0x5555593f5d00
brk(0x5555593f6000)                     = 0x5555593f6000
mprotect(0x7f5e8c2ee000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
mkdir("./syzkaller.r6vsUN", 0700)       = 0
chmod("./syzkaller.r6vsUN", 0777)       = 0
chdir("./syzkaller.r6vsUN")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555593d4650) = 296
./strace-static-x86_64: Process 296 attached
[pid   296] set_robust_list(0x5555593d4660, 24) = 0
[pid   296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   296] getppid()                   = 0
[pid   296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   296] unshare(CLONE_NEWNS)        = 0
[pid   296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   296] unshare(CLONE_NEWCGROUP)    = 0
[pid   296] unshare(CLONE_NEWUTS)       = 0
[pid   296] unshare(CLONE_SYSVSEM)      = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] getpid()                    = 1
[pid   296] 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   296] 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   296] unshare(CLONE_NEWNET)       = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "0 65535", 7)      = 7
[pid   296] close(3)                    = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "100000", 6)       = 6
[pid   296] close(3)                    = 0
[pid   296] mkdir("./syz-tmp", 0777)    = 0
[pid   296] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   296] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   296] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   296] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   296] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   296] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   296] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] 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   296] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   296] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   296] chdir("/")                  = 0
[pid   296] umount2("./pivot", MNT_DETACH) = 0
[pid   296] chroot("./newroot")         = 0
[pid   296] chdir("/")                  = 0
[pid   296] mkdir("/dev/gadgetfs", 0777) = 0
[   24.054877][   T28] audit: type=1400 audit(1735757055.190:66): avc:  denied  { execmem } for  pid=295 comm="syz-executor309" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   24.074992][   T28] audit: type=1400 audit(1735757055.190:67): avc:  denied  { mounton } for  pid=296 comm="syz-executor309" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   296] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   296] mkdir("/dev/binderfs", 0777) = 0
[pid   296] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   296] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   296] mkdir("./0", 0777)          = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555593d4650) = 2
./strace-static-x86_64: Process 297 attached
[pid   297] set_robust_list(0x5555593d4660, 24) = 0
[pid   297] chdir("./0")                = 0
[pid   297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   297] setpgid(0, 0)               = 0
[pid   297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "1000", 4executing program
)         = 4
[pid   297] close(3)                    = 0
[pid   297] symlink("/dev/binderfs", "./binderfs") = 0
[pid   297] write(1, "executing program\n", 18) = 18
[pid   297] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   297] mount(".", "./file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[   24.097265][   T28] audit: type=1400 audit(1735757055.220:68): avc:  denied  { mounton } for  pid=296 comm="syz-executor309" path="/root/syzkaller.r6vsUN/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   24.099091][  T296] request_module fs-gadgetfs succeeded, but still no fs?
[   24.122111][   T28] audit: type=1400 audit(1735757055.220:69): avc:  denied  { mount } for  pid=296 comm="syz-executor309" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   297] mount("./file0", "./file0", "incremental-fs", MS_RDONLY, NULL) = 0
[pid   297] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   297] exit_group(0)               = ?
[pid   297] +++ exited with 0 +++
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   296] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   296] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(3, 0x5555593d56f0 /* 6 entries */, 32768) = 176
[pid   296] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   296] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(4, 0x5555593dd730 /* 2 entries */, 32768) = 48
[pid   296] getdents64(4, 0x5555593dd730 /* 0 entries */, 32768) = 0
[pid   296] close(4)                    = 0
[pid   296] rmdir("./0/.incomplete")    = 0
[pid   296] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   296] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(4, 0x5555593dd730 /* 2 entries */, 32768) = 48
[pid   296] getdents64(4, 0x5555593dd730 /* 0 entries */, 32768) = 0
[pid   296] close(4)                    = 0
[pid   296] rmdir("./0/.index")         = 0
[   24.137393][  T297] incfs: ino conflict with backing FS 8
[   24.151759][   T28] audit: type=1400 audit(1735757055.220:70): avc:  denied  { mounton } for  pid=296 comm="syz-executor309" path="/root/syzkaller.r6vsUN/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   24.181101][  T296] ------------[ cut here ]------------
[   24.181522][   T28] audit: type=1400 audit(1735757055.220:71): avc:  denied  { mount } for  pid=296 comm="syz-executor309" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   24.186390][  T296] WARNING: CPU: 0 PID: 296 at fs/inode.c:332 drop_nlink+0xc1/0x110
[   24.208139][   T28] audit: type=1400 audit(1735757055.220:72): avc:  denied  { mounton } for  pid=296 comm="syz-executor309" path="/root/syzkaller.r6vsUN/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   24.215826][  T296] Modules linked in:
[   24.242697][   T28] audit: type=1400 audit(1735757055.220:73): avc:  denied  { mounton } for  pid=296 comm="syz-executor309" path="/root/syzkaller.r6vsUN/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14671 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   24.246098][  T296] CPU: 0 PID: 296 Comm: syz-executor309 Not tainted 6.1.118-syzkaller-00078-ge2b9748880b9 #0
[   24.274069][   T28] audit: type=1400 audit(1735757055.220:74): avc:  denied  { unmount } for  pid=296 comm="syz-executor309" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   24.283435][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.283450][  T296] RIP: 0010:drop_nlink+0xc1/0x110
[   24.317615][  T296] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 57 d7 ef ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 df 61 a8 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   24.317664][   T28] audit: type=1400 audit(1735757055.240:75): avc:  denied  { mounton } for  pid=296 comm="syz-executor309" path="/dev/gadgetfs" dev="devtmpfs" ino=522 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   24.337116][  T296] RSP: 0018:ffffc90000db7b30 EFLAGS: 00010293
[   24.365890][  T296] RAX: ffffffff81cd24d1 RBX: 0000000000000000 RCX: ffff88811146d100
[   24.373709][  T296] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   24.381505][  T296] RBP: ffffc90000db7b58 R08: ffffffff81cd2454 R09: 0000000000000003
[   24.389301][  T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
[   24.397177][  T296] R13: 1ffff110245d9e3e R14: ffff888122ecf1a8 R15: ffff888122ecf1f0
[   24.404936][  T296] FS:  00005555593d4380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   24.413711][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.420110][  T296] CR2: 00005570380d0338 CR3: 0000000120bdf000 CR4: 00000000003506b0
[   24.428125][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.435897][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.443728][  T296] Call Trace:
[   24.446821][  T296]  <TASK>
[   24.449599][  T296]  ? show_regs+0x58/0x60
[   24.453730][  T296]  ? __warn+0x160/0x3d0
[   24.458192][  T296]  ? drop_nlink+0xc1/0x110
[   24.462560][  T296]  ? report_bug+0x4d5/0x7d0
[   24.466873][  T296]  ? drop_nlink+0xc1/0x110
[   24.471149][  T296]  ? handle_bug+0x41/0x70
[   24.475288][  T296]  ? exc_invalid_op+0x1b/0x50
[   24.479807][  T296]  ? asm_exc_invalid_op+0x1b/0x20
[   24.484699][  T296]  ? drop_nlink+0x44/0x110
[   24.488915][  T296]  ? drop_nlink+0xc1/0x110
[   24.493217][  T296]  ? drop_nlink+0xc1/0x110
[   24.497558][  T296]  shmem_rmdir+0x59/0x90
[   24.501675][  T296]  vfs_rmdir+0x398/0x500
[   24.505737][  T296]  incfs_kill_sb+0x113/0x230
[   24.510140][  T296]  deactivate_locked_super+0xad/0x110
[   24.515385][  T296]  deactivate_super+0xbe/0xf0
[   24.519860][  T296]  cleanup_mnt+0x485/0x510
[   24.524138][  T296]  __cleanup_mnt+0x19/0x20
[   24.528365][  T296]  task_work_run+0x24d/0x2e0
[   24.532818][  T296]  ? task_work_cancel+0x2e0/0x2e0
[   24.537678][  T296]  ptrace_notify+0x29e/0x350
[   24.542100][  T296]  ? do_notify_parent+0xa20/0xa20
[   24.546939][  T296]  ? user_path_at_empty+0x14e/0x1a0
[   24.551996][  T296]  ? __x64_sys_umount+0x122/0x170
[   24.556845][  T296]  ? path_umount+0xe70/0xe70
[   24.561291][  T296]  syscall_exit_to_user_mode+0x99/0x130
[   24.566647][  T296]  do_syscall_64+0x47/0xb0
[   24.570923][  T296]  ? clear_bhb_loop+0x55/0xb0
[   24.575439][  T296]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   24.581342][  T296] RIP: 0033:0x7f5e8c27ba47
[   24.585566][  T296] 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
[   24.605048][  T296] RSP: 002b:00007ffd11d38ee8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.613359][  T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5e8c27ba47
[   24.621284][  T296] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd11d38fa0
[   24.629324][  T296] RBP: 00007ffd11d38fa0 R08: 0000000000000000 R09: 0000000000000000
[   24.637187][  T296] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd11d3a010
[   24.645057][  T296] R13: 00005555593d56c0 R14: 00007ffd11d3a010 R15: 0000000000000001
[   24.652879][  T296]  </TASK>
[   24.655713][  T296] ---[ end trace 0000000000000000 ]---
[   24.661215][  T296] ==================================================================
[   24.669101][  T296] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   24.675166][  T296] Write of size 4 at addr 0000000000000170 by task syz-executor309/296
[   24.683287][  T296] 
[   24.685410][  T296] CPU: 0 PID: 296 Comm: syz-executor309 Tainted: G        W          6.1.118-syzkaller-00078-ge2b9748880b9 #0
[   24.696864][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.706756][  T296] Call Trace:
[   24.709879][  T296]  <TASK>
[   24.712654][  T296]  dump_stack_lvl+0x151/0x1b7
[   24.717172][  T296]  ? nf_tcp_handle_invalid+0x3f1/0x3f1
[   24.722463][  T296]  ? _printk+0xd1/0x111
[   24.726458][  T296]  print_report+0xe1/0x4e0
[   24.730721][  T296]  ? __virt_addr_valid+0x59/0x2f0
[   24.735574][  T296]  ? kasan_addr_to_slab+0xd/0x80
[   24.740347][  T296]  ? ihold+0x20/0x60
[   24.744081][  T296]  kasan_report+0x13c/0x170
[   24.748418][  T296]  ? ihold+0x20/0x60
[   24.752154][  T296]  kasan_check_range+0x294/0x2a0
[   24.756921][  T296]  __kasan_check_write+0x14/0x20
[   24.761695][  T296]  ihold+0x20/0x60
[   24.765252][  T296]  vfs_rmdir+0x268/0x500
[   24.769332][  T296]  incfs_kill_sb+0x113/0x230
[   24.773845][  T296]  deactivate_locked_super+0xad/0x110
[   24.779052][  T296]  deactivate_super+0xbe/0xf0
[   24.783566][  T296]  cleanup_mnt+0x485/0x510
[   24.787837][  T296]  __cleanup_mnt+0x19/0x20
[   24.792069][  T296]  task_work_run+0x24d/0x2e0
[   24.796495][  T296]  ? task_work_cancel+0x2e0/0x2e0
[   24.801360][  T296]  ptrace_notify+0x29e/0x350
[   24.805786][  T296]  ? do_notify_parent+0xa20/0xa20
[   24.810643][  T296]  ? user_path_at_empty+0x14e/0x1a0
[   24.815680][  T296]  ? __x64_sys_umount+0x122/0x170
[   24.820537][  T296]  ? path_umount+0xe70/0xe70
[   24.824966][  T296]  syscall_exit_to_user_mode+0x99/0x130
[   24.830493][  T296]  do_syscall_64+0x47/0xb0
[   24.834744][  T296]  ? clear_bhb_loop+0x55/0xb0
[   24.839260][  T296]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   24.845009][  T296] RIP: 0033:0x7f5e8c27ba47
[   24.849240][  T296] 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
[   24.868686][  T296] RSP: 002b:00007ffd11d38ee8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   24.876930][  T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5e8c27ba47
[   24.884740][  T296] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd11d38fa0
[   24.892639][  T296] RBP: 00007ffd11d38fa0 R08: 0000000000000000 R09: 0000000000000000
[   24.900451][  T296] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd11d3a010
[   24.908266][  T296] R13: 00005555593d56c0 R14: 00007ffd11d3a010 R15: 0000000000000001
[   24.916084][  T296]  </TASK>
[   24.918937][  T296] ==================================================================
[   24.929918][  T296] Disabling lock debugging due to kernel taint
[   24.936012][  T296] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   24.943526][  T296] #PF: supervisor write access in kernel mode
[   24.949426][  T296] #PF: error_code(0x0002) - not-present page
[   24.955249][  T296] PGD 0 P4D 0 
[   24.958453][  T296] Oops: 0002 [#1] PREEMPT SMP KASAN
[   24.963490][  T296] CPU: 1 PID: 296 Comm: syz-executor309 Tainted: G    B   W          6.1.118-syzkaller-00078-ge2b9748880b9 #0
[   24.974944][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.984952][  T296] RIP: 0010:ihold+0x25/0x60
[   24.989296][  T296] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 b1 59 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 00 cf ef ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 34 5d a8
[   25.008914][  T296] RSP: 0018:ffffc90000db7b70 EFLAGS: 00010246
[   25.014810][  T296] RAX: ffff88811146d100 RBX: 0000000000000001 RCX: ffff88811146d100
[   25.022625][  T296] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.030431][  T296] RBP: ffffc90000db7b80 R08: ffffffff8144a503 R09: fffffbfff0f6e2fd
[   25.038253][  T296] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110245d9dc0
[   25.046067][  T296] R13: ffff8881249dd220 R14: 0000000000000000 R15: 1ffff1102493ba4a
[   25.053869][  T296] FS:  00005555593d4380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   25.062636][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.069180][  T296] CR2: 0000000000000170 CR3: 0000000120bdf000 CR4: 00000000003506a0
[   25.076987][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.084799][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.092610][  T296] Call Trace:
[   25.095734][  T296]  <TASK>
[   25.098587][  T296]  ? __die_body+0x62/0xb0
[   25.102675][  T296]  ? __die+0x7e/0x90
[   25.106407][  T296]  ? page_fault_oops+0x7f9/0xa90
[   25.111182][  T296]  ? vprintk_default+0x26/0x30
[   25.115784][  T296]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   25.121164][  T296]  ? add_taint+0x44/0xe0
[   25.125241][  T296]  ? panic+0x667/0x667
[   25.129150][  T296]  ? preempt_schedule_thunk+0x16/0x18
[   25.134357][  T296]  ? exc_page_fault+0x529/0x6d0
[   25.139166][  T296]  ? asm_exc_page_fault+0x27/0x30
[   25.144024][  T296]  ? add_taint+0x93/0xe0
[   25.148098][  T296]  ? ihold+0x25/0x60
[   25.151831][  T296]  vfs_rmdir+0x268/0x500
[   25.155909][  T296]  incfs_kill_sb+0x113/0x230
[   25.160344][  T296]  deactivate_locked_super+0xad/0x110
[   25.165555][  T296]  deactivate_super+0xbe/0xf0
[   25.170061][  T296]  cleanup_mnt+0x485/0x510
[   25.174348][  T296]  __cleanup_mnt+0x19/0x20
[   25.178563][  T296]  task_work_run+0x24d/0x2e0
[   25.182992][  T296]  ? task_work_cancel+0x2e0/0x2e0
[   25.187888][  T296]  ptrace_notify+0x29e/0x350
[   25.192279][  T296]  ? do_notify_parent+0xa20/0xa20
[   25.197134][  T296]  ? user_path_at_empty+0x14e/0x1a0
[   25.202170][  T296]  ? __x64_sys_umount+0x122/0x170
[   25.207029][  T296]  ? path_umount+0xe70/0xe70
[   25.211467][  T296]  syscall_exit_to_user_mode+0x99/0x130
[   25.216850][  T296]  do_syscall_64+0x47/0xb0
[   25.221094][  T296]  ? clear_bhb_loop+0x55/0xb0
[   25.225624][  T296]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   25.231335][  T296] RIP: 0033:0x7f5e8c27ba47
[   25.235586][  T296] 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
[   25.255035][  T296] RSP: 002b:00007ffd11d38ee8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   25.263272][  T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5e8c27ba47
[   25.271083][  T296] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd11d38fa0
[   25.278894][  T296] RBP: 00007ffd11d38fa0 R08: 0000000000000000 R09: 0000000000000000
[   25.286719][  T296] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd11d3a010
[   25.294525][  T296] R13: 00005555593d56c0 R14: 00007ffd11d3a010 R15: 0000000000000001
[   25.302351][  T296]  </TASK>
[   25.305190][  T296] Modules linked in:
[   25.309042][  T296] CR2: 0000000000000170
[   25.313024][  T296] ---[ end trace 0000000000000000 ]---
[   25.318315][  T296] RIP: 0010:ihold+0x25/0x60
[   25.322656][  T296] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 b1 59 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 00 cf ef ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 34 5d a8
[   25.342200][  T296] RSP: 0018:ffffc90000db7b70 EFLAGS: 00010246
[   25.348100][  T296] RAX: ffff88811146d100 RBX: 0000000000000001 RCX: ffff88811146d100
[   25.355913][  T296] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.363726][  T296] RBP: ffffc90000db7b80 R08: ffffffff8144a503 R09: fffffbfff0f6e2fd
[   25.371622][  T296] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110245d9dc0
[   25.379517][  T296] R13: ffff8881249dd220 R14: 0000000000000000 R15: 1ffff1102493ba4a
[   25.387333][  T296] FS:  00005555593d4380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   25.396100][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.402521][  T296] CR2: 0000000000000170 CR3: 0000000120bdf000 CR4: 00000000003506a0
[   25.410331][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.418228][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.426049][  T296] Kernel panic - not syncing: Fatal exception
[   25.432343][  T296] Kernel Offset: disabled
[   25.436475][  T296] Rebooting in 86400 seconds..