./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2575959111

<...>
Warning: Permanently added '10.128.15.196' (ED25519) to the list of known hosts.
execve("./syz-executor2575959111", ["./syz-executor2575959111"], 0x7ffe5b0ec090 /* 10 vars */) = 0
brk(NULL)                               = 0x55555979b000
brk(0x55555979bd00)                     = 0x55555979bd00
arch_prctl(ARCH_SET_FS, 0x55555979b380) = 0
set_tid_address(0x55555979b650)         = 296
set_robust_list(0x55555979b660, 24)     = 0
rseq(0x55555979bca0, 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-executor2575959111", 4096) = 28
getrandom("\x0d\x1c\xd3\x8a\x57\x8f\xc0\xe7", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555979bd00
brk(0x5555597bcd00)                     = 0x5555597bcd00
brk(0x5555597bd000)                     = 0x5555597bd000
mprotect(0x7fdccce3c000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000
mkdir("./syzkaller.aI0E21", 0700)       = 0
chmod("./syzkaller.aI0E21", 0777)       = 0
chdir("./syzkaller.aI0E21")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555979b650) = 297
./strace-static-x86_64: Process 297 attached
[pid   297] set_robust_list(0x55555979b660, 24) = 0
[pid   297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   297] getppid()                   = 0
[pid   297] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   297] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   297] unshare(CLONE_NEWNS)        = 0
[pid   297] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   297] unshare(CLONE_NEWCGROUP)    = 0
[pid   297] unshare(CLONE_NEWUTS)       = 0
[pid   297] unshare(CLONE_SYSVSEM)      = 0
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   297] getpid()                    = 1
[pid   297] 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   297] 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   297] unshare(CLONE_NEWNET)       = 0
[pid   297] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "0 65535", 7)      = 7
[pid   297] close(3)                    = 0
[pid   297] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "100000", 6)       = 6
[pid   297] close(3)                    = 0
[pid   297] mkdir("./syz-tmp", 0777)    = 0
[pid   297] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   297] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   297] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   297] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   297] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[   22.779052][   T28] audit: type=1400 audit(1739143757.501:66): avc:  denied  { execmem } for  pid=296 comm="syz-executor257" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.799039][   T28] audit: type=1400 audit(1739143757.501:67): avc:  denied  { mounton } for  pid=297 comm="syz-executor257" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   297] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   297] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] 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   297] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   297] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   297] 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   297] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   297] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   297] chdir("/")                  = 0
[pid   297] umount2("./pivot", MNT_DETACH) = 0
[pid   297] chroot("./newroot")         = 0
[pid   297] chdir("/")                  = 0
[pid   297] mkdir("/dev/gadgetfs", 0777) = 0
[   22.824149][   T28] audit: type=1400 audit(1739143757.541:68): avc:  denied  { mounton } for  pid=297 comm="syz-executor257" path="/root/syzkaller.aI0E21/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   22.848496][   T28] audit: type=1400 audit(1739143757.541:69): avc:  denied  { mount } for  pid=297 comm="syz-executor257" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   22.849964][  T297] request_module fs-gadgetfs succeeded, but still no fs?
[pid   297] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULLexecuting program
) = -1 ENODEV (No such device)
[pid   297] mkdir("/dev/binderfs", 0777) = 0
[pid   297] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   297] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   297] mkdir("./0", 0777)          = 0
[pid   297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555979b650) = 2
./strace-static-x86_64: Process 298 attached
[pid   298] set_robust_list(0x55555979b660, 24) = 0
[pid   298] chdir("./0")                = 0
[pid   298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   298] setpgid(0, 0)               = 0
[pid   298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   298] write(3, "1000", 4)         = 4
[pid   298] close(3)                    = 0
[pid   298] symlink("/dev/binderfs", "./binderfs") = 0
[pid   298] write(1, "executing program\n", 18) = 18
[pid   298] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   298] mount(".", "./file0", NULL, MS_RDONLY|MS_SYNCHRONOUS|MS_DIRSYNC|MS_BIND|MS_SHARED, NULL) = 0
[pid   298] mount("./file0", "./file0", "incremental-fs", MS_RDONLY, NULL) = 0
[pid   298] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   298] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   298] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   298] exit_group(0)               = ?
[pid   298] +++ exited with 0 +++
[pid   297] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   297] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   297] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   297] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=120, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(3, 0x55555979c6f0 /* 6 entries */, 32768) = 176
[pid   297] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   297] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(4, 0x5555597a4730 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4, 0x5555597a4730 /* 0 entries */, 32768) = 0
[pid   297] close(4)                    = 0
[pid   297] rmdir("./0/.incomplete")    = 0
[pid   297] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   297] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   297] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   297] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   297] getdents64(4, 0x5555597a4730 /* 2 entries */, 32768) = 48
[pid   297] getdents64(4, 0x5555597a4730 /* 0 entries */, 32768) = 0
[pid   297] close(4)                    = 0
[pid   297] rmdir("./0/.index")         = 0
[   22.870960][   T28] audit: type=1400 audit(1739143757.541:70): avc:  denied  { mounton } for  pid=297 comm="syz-executor257" path="/root/syzkaller.aI0E21/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
[   22.883061][  T298] incfs: ino conflict with backing FS 9
[   22.903068][   T28] audit: type=1400 audit(1739143757.551:71): avc:  denied  { mount } for  pid=297 comm="syz-executor257" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   22.929770][  T297] ------------[ cut here ]------------
[   22.930166][   T28] audit: type=1400 audit(1739143757.551:72): avc:  denied  { mounton } for  pid=297 comm="syz-executor257" path="/root/syzkaller.aI0E21/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
[   22.935048][  T297] WARNING: CPU: 1 PID: 297 at fs/inode.c:332 drop_nlink+0xc1/0x110
[   22.961577][   T28] audit: type=1400 audit(1739143757.551:73): avc:  denied  { mounton } for  pid=297 comm="syz-executor257" path="/root/syzkaller.aI0E21/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=7756 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   22.969250][  T297] Modules linked in:
[   22.996780][   T28] audit: type=1400 audit(1739143757.551:74): avc:  denied  { unmount } for  pid=297 comm="syz-executor257" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   23.000241][  T297] CPU: 1 PID: 297 Comm: syz-executor257 Not tainted 6.1.124-syzkaller-00004-g1ac09f5c0571 #0
[   23.019809][   T28] audit: type=1400 audit(1739143757.571:75): avc:  denied  { mounton } for  pid=297 comm="syz-executor257" path="/dev/gadgetfs" dev="devtmpfs" ino=522 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   23.029659][  T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[   23.029680][  T297] RIP: 0010:drop_nlink+0xc1/0x110
[   23.067055][  T297] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 d7 d5 ef ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7f 4d a8 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   23.086609][  T297] RSP: 0018:ffffc90000ef7b30 EFLAGS: 00010293
[   23.092497][  T297] RAX: ffffffff81cd4741 RBX: 0000000000000000 RCX: ffff8881102b9440
[   23.100337][  T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.108471][  T297] RBP: ffffc90000ef7b58 R08: ffffffff81cd46c4 R09: 0000000000000003
[   23.116263][  T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
[   23.124104][  T297] R13: 1ffff110237a4892 R14: ffff88811bd24448 R15: ffff88811bd24490
[   23.131907][  T297] FS:  000055555979b380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   23.140674][  T297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.147087][  T297] CR2: 00005555597ac738 CR3: 0000000125d9c000 CR4: 00000000003506a0
[   23.154927][  T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.162717][  T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.170545][  T297] Call Trace:
[   23.173643][  T297]  <TASK>
[   23.176417][  T297]  ? show_regs+0x58/0x60
[   23.180520][  T297]  ? __warn+0x160/0x3d0
[   23.184485][  T297]  ? drop_nlink+0xc1/0x110
[   23.188762][  T297]  ? report_bug+0x4d5/0x7d0
[   23.193078][  T297]  ? drop_nlink+0xc1/0x110
[   23.197334][  T297]  ? handle_bug+0x41/0x70
[   23.201533][  T297]  ? exc_invalid_op+0x1b/0x50
[   23.206018][  T297]  ? asm_exc_invalid_op+0x1b/0x20
[   23.211443][  T297]  ? drop_nlink+0x44/0x110
[   23.216256][  T297]  ? drop_nlink+0xc1/0x110
[   23.220530][  T297]  ? drop_nlink+0xc1/0x110
[   23.224756][  T297]  shmem_rmdir+0x59/0x90
[   23.228865][  T297]  vfs_rmdir+0x398/0x500
[   23.232943][  T297]  incfs_kill_sb+0x113/0x230
[   23.237340][  T297]  deactivate_locked_super+0xad/0x110
[   23.242574][  T297]  deactivate_super+0xbe/0xf0
[   23.247091][  T297]  cleanup_mnt+0x485/0x510
[   23.251338][  T297]  __cleanup_mnt+0x19/0x20
[   23.255566][  T297]  task_work_run+0x24d/0x2e0
[   23.260019][  T297]  ? task_work_cancel+0x2e0/0x2e0
[   23.264853][  T297]  ptrace_notify+0x29e/0x350
[   23.269314][  T297]  ? do_notify_parent+0xa20/0xa20
[   23.274160][  T297]  ? user_path_at_empty+0x14e/0x1a0
[   23.279215][  T297]  ? __x64_sys_umount+0x122/0x170
[   23.284052][  T297]  ? path_umount+0xe70/0xe70
[   23.288491][  T297]  syscall_exit_to_user_mode+0x99/0x130
[   23.293861][  T297]  do_syscall_64+0x47/0xb0
[   23.298121][  T297]  ? clear_bhb_loop+0x55/0xb0
[   23.302607][  T297]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   23.308359][  T297] RIP: 0033:0x7fdcccdc9a87
[   23.312592][  T297] 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
[   23.332088][  T297] RSP: 002b:00007ffca0902b68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   23.340301][  T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdcccdc9a87
[   23.348139][  T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca0902c20
[   23.355899][  T297] RBP: 00007ffca0902c20 R08: 0000000000000000 R09: 0000000000000000
[   23.363732][  T297] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffca0903c90
[   23.371535][  T297] R13: 000055555979c6c0 R14: 00007ffca0903c90 R15: 0000000000000001
[   23.379714][  T297]  </TASK>
[   23.382544][  T297] ---[ end trace 0000000000000000 ]---
[   23.387987][  T297] ==================================================================
[   23.395858][  T297] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   23.402026][  T297] Write of size 4 at addr 0000000000000170 by task syz-executor257/297
[   23.410137][  T297] 
[   23.412259][  T297] CPU: 1 PID: 297 Comm: syz-executor257 Tainted: G        W          6.1.124-syzkaller-00004-g1ac09f5c0571 #0
[   23.423715][  T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[   23.433611][  T297] Call Trace:
[   23.436732][  T297]  <TASK>
[   23.439513][  T297]  dump_stack_lvl+0x151/0x1b7
[   23.444036][  T297]  ? nf_tcp_handle_invalid+0x3f1/0x3f1
[   23.449319][  T297]  ? _printk+0xd1/0x111
[   23.453398][  T297]  print_report+0xe1/0x4e0
[   23.457651][  T297]  ? __virt_addr_valid+0x59/0x2f0
[   23.462509][  T297]  ? kasan_addr_to_slab+0xd/0x80
[   23.467289][  T297]  ? ihold+0x20/0x60
[   23.471037][  T297]  kasan_report+0x13c/0x170
[   23.475357][  T297]  ? ihold+0x20/0x60
[   23.479090][  T297]  kasan_check_range+0x294/0x2a0
[   23.483867][  T297]  __kasan_check_write+0x14/0x20
[   23.488637][  T297]  ihold+0x20/0x60
[   23.492194][  T297]  vfs_rmdir+0x268/0x500
[   23.496271][  T297]  incfs_kill_sb+0x113/0x230
[   23.500699][  T297]  deactivate_locked_super+0xad/0x110
[   23.505905][  T297]  deactivate_super+0xbe/0xf0
[   23.510419][  T297]  cleanup_mnt+0x485/0x510
[   23.514762][  T297]  __cleanup_mnt+0x19/0x20
[   23.519016][  T297]  task_work_run+0x24d/0x2e0
[   23.523437][  T297]  ? task_work_cancel+0x2e0/0x2e0
[   23.528302][  T297]  ptrace_notify+0x29e/0x350
[   23.532839][  T297]  ? do_notify_parent+0xa20/0xa20
[   23.537698][  T297]  ? user_path_at_empty+0x14e/0x1a0
[   23.542733][  T297]  ? __x64_sys_umount+0x122/0x170
[   23.547593][  T297]  ? path_umount+0xe70/0xe70
[   23.552026][  T297]  syscall_exit_to_user_mode+0x99/0x130
[   23.557400][  T297]  do_syscall_64+0x47/0xb0
[   23.561653][  T297]  ? clear_bhb_loop+0x55/0xb0
[   23.566170][  T297]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   23.571897][  T297] RIP: 0033:0x7fdcccdc9a87
[   23.576153][  T297] 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
[   23.595590][  T297] RSP: 002b:00007ffca0902b68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   23.603834][  T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdcccdc9a87
[   23.611645][  T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca0902c20
[   23.619456][  T297] RBP: 00007ffca0902c20 R08: 0000000000000000 R09: 0000000000000000
[   23.627354][  T297] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffca0903c90
[   23.635167][  T297] R13: 000055555979c6c0 R14: 00007ffca0903c90 R15: 0000000000000001
[   23.643010][  T297]  </TASK>
[   23.645845][  T297] ==================================================================
[   23.654171][  T297] Disabling lock debugging due to kernel taint
[   23.660206][  T297] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   23.667765][  T297] #PF: supervisor write access in kernel mode
[   23.673696][  T297] #PF: error_code(0x0002) - not-present page
[   23.679494][  T297] PGD 0 P4D 0 
[   23.682694][  T297] Oops: 0002 [#1] PREEMPT SMP KASAN
[   23.687730][  T297] CPU: 1 PID: 297 Comm: syz-executor257 Tainted: G    B   W          6.1.124-syzkaller-00004-g1ac09f5c0571 #0
[   23.699185][  T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[   23.709083][  T297] RIP: 0010:ihold+0x25/0x60
[   23.713419][  T297] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 51 45 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 80 cd 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 d4 48 a8
[   23.732865][  T297] RSP: 0018:ffffc90000ef7b70 EFLAGS: 00010246
[   23.738767][  T297] RAX: ffff8881102b9400 RBX: 0000000000000001 RCX: ffff8881102b9440
[   23.746578][  T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.754407][  T297] RBP: ffffc90000ef7b80 R08: ffffffff8144b2c3 R09: fffffbfff0f6e6fd
[   23.762285][  T297] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110237a4906
[   23.770100][  T297] R13: ffff888123ce5440 R14: 0000000000000000 R15: 1ffff1102479ca8e
[   23.777921][  T297] FS:  000055555979b380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   23.786674][  T297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.793356][  T297] CR2: 0000000000000170 CR3: 0000000125d9c000 CR4: 00000000003506a0
[   23.801345][  T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.809153][  T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.816967][  T297] Call Trace:
[   23.820090][  T297]  <TASK>
[   23.822866][  T297]  ? __die_body+0x62/0xb0
[   23.827117][  T297]  ? __die+0x7e/0x90
[   23.830851][  T297]  ? page_fault_oops+0x7f9/0xa90
[   23.835672][  T297]  ? vprintk_default+0x26/0x30
[   23.840224][  T297]  ? kernelmode_fixup_or_oops+0xd0/0xd0
[   23.845603][  T297]  ? add_taint+0x44/0xe0
[   23.849686][  T297]  ? panic+0x667/0x667
[   23.853591][  T297]  ? preempt_schedule_thunk+0x16/0x18
[   23.858802][  T297]  ? exc_page_fault+0x529/0x6d0
[   23.863487][  T297]  ? asm_exc_page_fault+0x27/0x30
[   23.868348][  T297]  ? add_taint+0x93/0xe0
[   23.872517][  T297]  ? ihold+0x25/0x60
[   23.876243][  T297]  vfs_rmdir+0x268/0x500
[   23.880324][  T297]  incfs_kill_sb+0x113/0x230
[   23.884751][  T297]  deactivate_locked_super+0xad/0x110
[   23.889973][  T297]  deactivate_super+0xbe/0xf0
[   23.894471][  T297]  cleanup_mnt+0x485/0x510
[   23.898723][  T297]  __cleanup_mnt+0x19/0x20
[   23.902978][  T297]  task_work_run+0x24d/0x2e0
[   23.907402][  T297]  ? task_work_cancel+0x2e0/0x2e0
[   23.912269][  T297]  ptrace_notify+0x29e/0x350
[   23.916691][  T297]  ? do_notify_parent+0xa20/0xa20
[   23.921721][  T297]  ? user_path_at_empty+0x14e/0x1a0
[   23.926756][  T297]  ? __x64_sys_umount+0x122/0x170
[   23.931879][  T297]  ? path_umount+0xe70/0xe70
[   23.936304][  T297]  syscall_exit_to_user_mode+0x99/0x130
[   23.941687][  T297]  do_syscall_64+0x47/0xb0
[   23.945941][  T297]  ? clear_bhb_loop+0x55/0xb0
[   23.950450][  T297]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   23.956179][  T297] RIP: 0033:0x7fdcccdc9a87
[   23.960432][  T297] 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
[   23.979873][  T297] RSP: 002b:00007ffca0902b68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   23.988120][  T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdcccdc9a87
[   23.995927][  T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca0902c20
[   24.003743][  T297] RBP: 00007ffca0902c20 R08: 0000000000000000 R09: 0000000000000000
[   24.011554][  T297] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffca0903c90
[   24.019364][  T297] R13: 000055555979c6c0 R14: 00007ffca0903c90 R15: 0000000000000001
[   24.027181][  T297]  </TASK>
[   24.030047][  T297] Modules linked in:
[   24.033787][  T297] CR2: 0000000000000170
[   24.037766][  T297] ---[ end trace 0000000000000000 ]---
[   24.043059][  T297] RIP: 0010:ihold+0x25/0x60
[   24.047401][  T297] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 51 45 a8 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 80 cd 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 d4 48 a8
[   24.066839][  T297] RSP: 0018:ffffc90000ef7b70 EFLAGS: 00010246
[   24.072745][  T297] RAX: ffff8881102b9400 RBX: 0000000000000001 RCX: ffff8881102b9440
[   24.080641][  T297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   24.088453][  T297] RBP: ffffc90000ef7b80 R08: ffffffff8144b2c3 R09: fffffbfff0f6e6fd
[   24.096261][  T297] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110237a4906
[   24.104073][  T297] R13: ffff888123ce5440 R14: 0000000000000000 R15: 1ffff1102479ca8e
[   24.111886][  T297] FS:  000055555979b380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   24.120653][  T297] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.127072][  T297] CR2: 0000000000000170 CR3: 0000000125d9c000 CR4: 00000000003506a0
[   24.134885][  T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.142696][  T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.150509][  T297] Kernel panic - not syncing: Fatal exception
[   24.156600][  T297] Kernel Offset: disabled
[   24.160798][  T297] Rebooting in 86400 seconds..