./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4083106233

<...>
Warning: Permanently added '10.128.1.178' (ED25519) to the list of known hosts.
execve("./syz-executor4083106233", ["./syz-executor4083106233"], 0x7ffe6e92b7a0 /* 10 vars */) = 0
brk(NULL)                               = 0x55555a1c2000
brk(0x55555a1c2d00)                     = 0x55555a1c2d00
arch_prctl(ARCH_SET_FS, 0x55555a1c2380) = 0
set_tid_address(0x55555a1c2650)         = 293
set_robust_list(0x55555a1c2660, 24)     = 0
rseq(0x55555a1c2ca0, 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-executor4083106233", 4096) = 28
getrandom("\xf4\xe4\xdc\x17\x94\xf1\x7f\x9a", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555a1c2d00
brk(0x55555a1e3d00)                     = 0x55555a1e3d00
brk(0x55555a1e4000)                     = 0x55555a1e4000
mprotect(0x7f3ef525b000, 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.vZdqjh", 0700)       = 0
chmod("./syzkaller.vZdqjh", 0777)       = 0
chdir("./syzkaller.vZdqjh")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555a1c2650) = 294
./strace-static-x86_64: Process 294 attached
[pid   294] set_robust_list(0x55555a1c2660, 24) = 0
[pid   294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   294] getppid()                   = 0
[pid   294] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   294] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   294] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   294] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   294] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   294] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   294] unshare(CLONE_NEWNS)        = 0
[pid   294] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   294] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   294] unshare(CLONE_NEWCGROUP)    = 0
[pid   294] unshare(CLONE_NEWUTS)       = 0
[pid   294] unshare(CLONE_SYSVSEM)      = 0
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   294] getpid()                    = 1
[pid   294] 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   294] 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   294] unshare(CLONE_NEWNET)       = 0
[pid   294] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   294] write(3, "0 65535", 7)      = 7
[pid   294] close(3)                    = 0
[pid   294] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   294] write(3, "100000", 6)       = 6
[pid   294] close(3)                    = 0
[pid   294] mkdir("./syz-tmp", 0777)    = 0
[   21.248001][   T30] audit: type=1400 audit(1737495793.096:66): avc:  denied  { execmem } for  pid=293 comm="syz-executor408" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   21.255857][   T30] audit: type=1400 audit(1737495793.096:67): avc:  denied  { mounton } for  pid=294 comm="syz-executor408" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   294] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   294] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   294] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   294] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   294] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   294] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   294] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   294] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   294] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   294] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   294] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   294] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   294] 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   294] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   294] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   294] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   294] chdir("/")                  = 0
[pid   294] umount2("./pivot", MNT_DETACH) = 0
[pid   294] chroot("./newroot")         = 0
[pid   294] chdir("/")                  = 0
[pid   294] mkdir("/dev/gadgetfs", 0777) = 0
[   21.277353][   T30] audit: type=1400 audit(1737495793.126:68): avc:  denied  { mounton } for  pid=294 comm="syz-executor408" path="/root/syzkaller.vZdqjh/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   21.302213][   T30] audit: type=1400 audit(1737495793.126:69): avc:  denied  { mount } for  pid=294 comm="syz-executor408" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   21.303104][  T294] request_module fs-gadgetfs succeeded, but still no fs?
[pid   294] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULLexecuting program
) = -1 ENODEV (No such device)
[pid   294] mkdir("/dev/binderfs", 0777) = 0
[pid   294] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   294] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   294] mkdir("./0", 0777)          = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555a1c2650) = 2
./strace-static-x86_64: Process 295 attached
[pid   295] set_robust_list(0x55555a1c2660, 24) = 0
[pid   295] chdir("./0")                = 0
[pid   295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   295] setpgid(0, 0)               = 0
[pid   295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   295] write(3, "1000", 4)         = 4
[pid   295] close(3)                    = 0
[pid   295] symlink("/dev/binderfs", "./binderfs") = 0
[pid   295] write(1, "executing program\n", 18) = 18
[pid   295] mkdir("./file0", 000)       = 0
[pid   295] mount(".", "./file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   295] mount("./file0", "./file0", "incremental-fs", MS_RDONLY, NULL) = 0
[pid   295] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   295] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   295] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   295] exit_group(0)               = ?
[pid   295] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   294] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   294] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   294] getdents64(3, 0x55555a1c36f0 /* 6 entries */, 32768) = 176
[pid   294] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   294] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   294] getdents64(4, 0x55555a1cb730 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x55555a1cb730 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./0/.incomplete")    = 0
[pid   294] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   294] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   294] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   294] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   294] getdents64(4, 0x55555a1cb730 /* 2 entries */, 32768) = 48
[pid   294] getdents64(4, 0x55555a1cb730 /* 0 entries */, 32768) = 0
[pid   294] close(4)                    = 0
[pid   294] rmdir("./0/.index")         = 0
[   21.324597][   T30] audit: type=1400 audit(1737495793.126:70): avc:  denied  { mounton } for  pid=294 comm="syz-executor408" path="/root/syzkaller.vZdqjh/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
[   21.335218][  T295] incfs: ino conflict with backing FS 8
[   21.356663][   T30] audit: type=1400 audit(1737495793.126:71): avc:  denied  { mount } for  pid=294 comm="syz-executor408" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   21.383237][   T30] audit: type=1400 audit(1737495793.126:72): avc:  denied  { mounton } for  pid=294 comm="syz-executor408" path="/root/syzkaller.vZdqjh/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
[   21.383368][  T294] ------------[ cut here ]------------
[   21.409696][   T30] audit: type=1400 audit(1737495793.126:73): avc:  denied  { mounton } for  pid=294 comm="syz-executor408" path="/root/syzkaller.vZdqjh/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14233 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   21.415244][  T294] WARNING: CPU: 1 PID: 294 at fs/inode.c:307 drop_nlink+0xc1/0x110
[   21.442445][   T30] audit: type=1400 audit(1737495793.126:74): avc:  denied  { unmount } for  pid=294 comm="syz-executor408" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   21.442469][   T30] audit: type=1400 audit(1737495793.156:75): avc:  denied  { mounton } for  pid=294 comm="syz-executor408" path="/dev/gadgetfs" dev="devtmpfs" ino=514 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   21.450385][  T294] Modules linked in:
[   21.496364][  T294] CPU: 1 PID: 294 Comm: syz-executor408 Not tainted 5.15.176-syzkaller-00972-g829d9f138569 #0
[   21.506713][  T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[   21.516620][  T294] RIP: 0010:drop_nlink+0xc1/0x110
[   21.521455][  T294] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 97 f4 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 6f 8d ae ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   21.540912][  T294] RSP: 0018:ffffc90000ae7bc8 EFLAGS: 00010293
[   21.546809][  T294] RAX: ffffffff81c1def1 RBX: 0000000000000000 RCX: ffff888125582780
[   21.554722][  T294] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   21.562516][  T294] RBP: ffffc90000ae7bf0 R08: ffffffff81c1de74 R09: 0000000000000003
[   21.570331][  T294] R10: fffff5200015cf68 R11: dffffc0000000001 R12: dffffc0000000000
[   21.578143][  T294] R13: 1ffff11023b1f987 R14: ffff88811d8fcbf0 R15: ffff88811d8fcc38
[   21.585936][  T294] FS:  000055555a1c2380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   21.594821][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.601317][  T294] CR2: 00005639a02cc000 CR3: 000000010e97f000 CR4: 00000000003506b0
[   21.609140][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   21.616925][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   21.624764][  T294] Call Trace:
[   21.627874][  T294]  <TASK>
[   21.630640][  T294]  ? show_regs+0x58/0x60
[   21.634717][  T294]  ? __warn+0x160/0x2f0
[   21.638732][  T294]  ? drop_nlink+0xc1/0x110
[   21.642970][  T294]  ? report_bug+0x3d9/0x5b0
[   21.647350][  T294]  ? drop_nlink+0xc1/0x110
[   21.651565][  T294]  ? handle_bug+0x41/0x70
[   21.655721][  T294]  ? exc_invalid_op+0x1b/0x50
[   21.660305][  T294]  ? asm_exc_invalid_op+0x1b/0x20
[   21.665096][  T294]  ? drop_nlink+0x44/0x110
[   21.669387][  T294]  ? drop_nlink+0xc1/0x110
[   21.673602][  T294]  ? drop_nlink+0xc1/0x110
[   21.678014][  T294]  ? drop_nlink+0xc1/0x110
[   21.682220][  T294]  shmem_rmdir+0x59/0x90
[   21.686299][  T294]  vfs_rmdir+0x324/0x470
[   21.690415][  T294]  incfs_kill_sb+0x113/0x230
[   21.694808][  T294]  deactivate_locked_super+0xad/0x110
[   21.700068][  T294]  deactivate_super+0xbe/0xf0
[   21.704529][  T294]  cleanup_mnt+0x45c/0x510
[   21.708821][  T294]  __cleanup_mnt+0x19/0x20
[   21.713041][  T294]  task_work_run+0x129/0x190
[   21.717496][  T294]  ptrace_notify+0x29e/0x350
[   21.721888][  T294]  ? do_notify_parent+0xa30/0xa30
[   21.726753][  T294]  ? user_path_at_empty+0x14e/0x1a0
[   21.731825][  T294]  ? __x64_sys_umount+0x122/0x170
[   21.736640][  T294]  ? path_umount+0xea0/0xea0
[   21.741096][  T294]  syscall_exit_to_user_mode+0xa3/0x160
[   21.746451][  T294]  do_syscall_64+0x47/0xb0
[   21.750729][  T294]  ? clear_bhb_loop+0x35/0x90
[   21.755215][  T294]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   21.760989][  T294] RIP: 0033:0x7f3ef51e8a47
[   21.765204][  T294] 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
[   21.784708][  T294] RSP: 002b:00007ffc86b5b9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   21.792901][  T294] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3ef51e8a47
[   21.800719][  T294] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc86b5bab0
[   21.808522][  T294] RBP: 00007ffc86b5bab0 R08: 0000000000000000 R09: 0000000000000000
[   21.816323][  T294] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffc86b5cb20
[   21.824177][  T294] R13: 000055555a1c36c0 R14: 00007ffc86b5cb20 R15: 0000000000000001
[   21.831981][  T294]  </TASK>
[   21.834803][  T294] ---[ end trace c1c047471ac6028d ]---
[   21.840185][  T294] ==================================================================
[   21.847999][  T294] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   21.854071][  T294] Write of size 4 at addr 0000000000000170 by task syz-executor408/294
[   21.862143][  T294] 
[   21.864314][  T294] CPU: 0 PID: 294 Comm: syz-executor408 Tainted: G        W         5.15.176-syzkaller-00972-g829d9f138569 #0
[   21.875769][  T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[   21.885665][  T294] Call Trace:
[   21.888790][  T294]  <TASK>
[   21.891571][  T294]  dump_stack_lvl+0x151/0x1c0
[   21.896081][  T294]  ? io_uring_drop_tctx_refs+0x190/0x190
[   21.901548][  T294]  ? _raw_spin_lock+0xa4/0x1b0
[   21.906150][  T294]  ? _raw_spin_trylock_bh+0x190/0x190
[   21.911356][  T294]  kasan_report+0x16f/0x1c0
[   21.915711][  T294]  ? ihold+0x20/0x60
[   21.919430][  T294]  ? ihold+0x20/0x60
[   21.923158][  T294]  kasan_check_range+0x293/0x2a0
[   21.927945][  T294]  __kasan_check_write+0x14/0x20
[   21.932708][  T294]  ihold+0x20/0x60
[   21.936266][  T294]  vfs_rmdir+0x201/0x470
[   21.940346][  T294]  incfs_kill_sb+0x113/0x230
[   21.944772][  T294]  deactivate_locked_super+0xad/0x110
[   21.949982][  T294]  deactivate_super+0xbe/0xf0
[   21.954495][  T294]  cleanup_mnt+0x45c/0x510
[   21.958751][  T294]  __cleanup_mnt+0x19/0x20
[   21.962998][  T294]  task_work_run+0x129/0x190
[   21.967425][  T294]  ptrace_notify+0x29e/0x350
[   21.971860][  T294]  ? do_notify_parent+0xa30/0xa30
[   21.976714][  T294]  ? user_path_at_empty+0x14e/0x1a0
[   21.981752][  T294]  ? __x64_sys_umount+0x122/0x170
[   21.986605][  T294]  ? path_umount+0xea0/0xea0
[   21.991041][  T294]  syscall_exit_to_user_mode+0xa3/0x160
[   21.996415][  T294]  do_syscall_64+0x47/0xb0
[   22.000667][  T294]  ? clear_bhb_loop+0x35/0x90
[   22.005183][  T294]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   22.010911][  T294] RIP: 0033:0x7f3ef51e8a47
[   22.015163][  T294] 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
[   22.034605][  T294] RSP: 002b:00007ffc86b5b9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   22.042855][  T294] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3ef51e8a47
[   22.050747][  T294] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc86b5bab0
[   22.058558][  T294] RBP: 00007ffc86b5bab0 R08: 0000000000000000 R09: 0000000000000000
[   22.066368][  T294] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffc86b5cb20
[   22.074181][  T294] R13: 000055555a1c36c0 R14: 00007ffc86b5cb20 R15: 0000000000000001
[   22.081996][  T294]  </TASK>
[   22.084857][  T294] ==================================================================
[   22.092765][  T294] Disabling lock debugging due to kernel taint
[   22.098956][  T294] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   22.106470][  T294] #PF: supervisor write access in kernel mode
[   22.112374][  T294] #PF: error_code(0x0002) - not-present page
[   22.118190][  T294] PGD 0 P4D 0 
[   22.121399][  T294] Oops: 0002 [#1] PREEMPT SMP KASAN
[   22.126436][  T294] CPU: 0 PID: 294 Comm: syz-executor408 Tainted: G    B   W         5.15.176-syzkaller-00972-g829d9f138569 #0
[   22.137890][  T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[   22.147785][  T294] RIP: 0010:ihold+0x25/0x60
[   22.152123][  T294] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 81 85 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 80 ec f0 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 04 89 ae
[   22.171567][  T294] RSP: 0018:ffffc90000ae7c08 EFLAGS: 00010246
[   22.177471][  T294] RAX: ffff888125582700 RBX: 0000000000000001 RCX: ffff888125582780
[   22.185282][  T294] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   22.193093][  T294] RBP: ffffc90000ae7c18 R08: ffffffff8141a99b R09: 0000000000000003
[   22.200902][  T294] R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: dffffc0000000000
[   22.208752][  T294] R13: ffff888112ec6990 R14: 0000000000000000 R15: 1ffff110225d8d38
[   22.216524][  T294] FS:  000055555a1c2380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.225293][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.231715][  T294] CR2: 0000000000000170 CR3: 000000010e97f000 CR4: 00000000003506b0
[   22.239528][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.247337][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.255149][  T294] Call Trace:
[   22.258274][  T294]  <TASK>
[   22.261054][  T294]  ? __die_body+0x62/0xb0
[   22.265219][  T294]  ? __die+0x7e/0x90
[   22.268957][  T294]  ? page_fault_oops+0x7f9/0xa90
[   22.273735][  T294]  ? __kasan_check_write+0x14/0x20
[   22.278674][  T294]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   22.284052][  T294]  ? __schedule+0xcd4/0x1590
[   22.288481][  T294]  ? exc_page_fault+0x510/0x7f0
[   22.293256][  T294]  ? asm_exc_page_fault+0x27/0x30
[   22.298114][  T294]  ? check_panic_on_warn+0x5b/0xb0
[   22.303059][  T294]  ? ihold+0x25/0x60
[   22.306792][  T294]  ? ihold+0x20/0x60
[   22.310524][  T294]  vfs_rmdir+0x201/0x470
[   22.314605][  T294]  incfs_kill_sb+0x113/0x230
[   22.319030][  T294]  deactivate_locked_super+0xad/0x110
[   22.324238][  T294]  deactivate_super+0xbe/0xf0
[   22.328756][  T294]  cleanup_mnt+0x45c/0x510
[   22.333005][  T294]  __cleanup_mnt+0x19/0x20
[   22.337259][  T294]  task_work_run+0x129/0x190
[   22.341686][  T294]  ptrace_notify+0x29e/0x350
[   22.346112][  T294]  ? do_notify_parent+0xa30/0xa30
[   22.350973][  T294]  ? user_path_at_empty+0x14e/0x1a0
[   22.356006][  T294]  ? __x64_sys_umount+0x122/0x170
[   22.360866][  T294]  ? path_umount+0xea0/0xea0
[   22.365293][  T294]  syscall_exit_to_user_mode+0xa3/0x160
[   22.370673][  T294]  do_syscall_64+0x47/0xb0
[   22.374927][  T294]  ? clear_bhb_loop+0x35/0x90
[   22.379441][  T294]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   22.385167][  T294] RIP: 0033:0x7f3ef51e8a47
[   22.389425][  T294] 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
[   22.408865][  T294] RSP: 002b:00007ffc86b5b9f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   22.417109][  T294] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3ef51e8a47
[   22.424922][  T294] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc86b5bab0
[   22.432744][  T294] RBP: 00007ffc86b5bab0 R08: 0000000000000000 R09: 0000000000000000
[   22.440546][  T294] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffc86b5cb20
[   22.448358][  T294] R13: 000055555a1c36c0 R14: 00007ffc86b5cb20 R15: 0000000000000001
[   22.456170][  T294]  </TASK>
[   22.459030][  T294] Modules linked in:
[   22.462778][  T294] CR2: 0000000000000170
[   22.466768][  T294] ---[ end trace c1c047471ac6028e ]---
[   22.472071][  T294] RIP: 0010:ihold+0x25/0x60
[   22.476399][  T294] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 81 85 ae ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 80 ec f0 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 04 89 ae
[   22.495830][  T294] RSP: 0018:ffffc90000ae7c08 EFLAGS: 00010246
[   22.501744][  T294] RAX: ffff888125582700 RBX: 0000000000000001 RCX: ffff888125582780
[   22.509545][  T294] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   22.517362][  T294] RBP: ffffc90000ae7c18 R08: ffffffff8141a99b R09: 0000000000000003
[   22.525168][  T294] R10: fffffbfff0e9a84c R11: dffffc0000000001 R12: dffffc0000000000
[   22.532979][  T294] R13: ffff888112ec6990 R14: 0000000000000000 R15: 1ffff110225d8d38
[   22.540879][  T294] FS:  000055555a1c2380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.549643][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.556066][  T294] CR2: 0000000000000170 CR3: 000000010e97f000 CR4: 00000000003506b0
[   22.563882][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.571698][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.579517][  T294] Kernel panic - not syncing: Fatal exception
[   22.585654][  T294] Kernel Offset: disabled
[   22.589774][  T294] Rebooting in 86400 seconds..