ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor1453728951

<...>
Warning: Permanently added '10.128.1.40' (ED25519) to the list of known hosts.
execve("ci2-android-6-1/syz-executor1453728951", ["ci2-android-6-1/syz-executor1453728951"], 0x7ffdd93cf7b0 /* 10 vars */) = 0
brk(NULL)                               = 0x555560326000
brk(0x555560326d40)                     = 0x555560326d40
arch_prctl(ARCH_SET_FS, 0x5555603263c0) = 0
set_tid_address(0x555560326690)         = 304
set_robust_list(0x5555603266a0, 24)     = 0
rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-1/syz-executor1453728951", 4096) = 44
getrandom("\x7a\xb7\x5e\xf1\x4d\xc4\x31\x8a", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555560326d40
brk(0x555560347d40)                     = 0x555560347d40
brk(0x555560348000)                     = 0x555560348000
mprotect(0x7f9649f6f000, 20480, 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
getrandom("\xa2\x93\x55\xe6\x4d\x09\x42\xfd", 8, GRND_NONBLOCK) = 8
getrandom("\xde\xf8\x2e\x13\x49\x87\xf5\x06", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.kUeURD", 0700)       = 0
chmod("./syzkaller.kUeURD", 0777)       = 0
chdir("./syzkaller.kUeURD")             = 0
unshare(CLONE_NEWPID)                   = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8)   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560326690) = 305
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-6-1/strace-static-x86_64: Process 305 attached
[pid   305] set_robust_list(0x5555603266a0, 24) = 0
[pid   305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   305] getppid()                   = 0
[pid   305] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   305] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   305] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   305] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   305] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   305] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   305] unshare(CLONE_NEWNS)        = 0
[pid   305] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   305] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   305] unshare(CLONE_NEWCGROUP)    = 0
[pid   305] unshare(CLONE_NEWUTS)       = 0
[pid   305] unshare(CLONE_SYSVSEM)      = 0
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   305] getpid()                    = 1
[pid   305] 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   305] 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   305] unshare(CLONE_NEWNET)       = 0
[pid   305] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   305] write(3, "0 65535", 7)      = 7
[pid   305] close(3)                    = 0
[pid   305] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   305] write(3, "100000", 6)       = 6
[pid   305] close(3)                    = 0
[pid   305] mkdir("./syz-tmp", 0777)    = 0
[pid   305] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   305] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   305] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   305] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   305] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   305] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   305] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   305] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   305] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   305] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   305] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   305] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   305] 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   305] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   305] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   305] 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   305] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   305] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   305] chdir("/")                  = 0
[pid   305] umount2("./pivot", MNT_DETACH) = 0
[pid   305] chroot("./newroot")         = 0
[pid   305] chdir("/")                  = 0
[   31.242623][   T28] audit: type=1400 audit(1789818903.310:64): avc:  denied  { execmem } for  pid=304 comm="syz-executor145" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   31.265323][   T28] audit: type=1400 audit(1789818903.320:65): avc:  denied  { mounton } for  pid=305 comm="syz-executor145" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   305] mkdir("/dev/gadgetfs", 0777) = 0
[pid   305] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   305] mkdir("/dev/binderfs", 0777) = 0
[pid   305] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   305] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   305] mkdir("./0", 0777)          = 0
[pid   305] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   305] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560326690) = 2
[pid   305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-6-1/strace-static-x86_64: Process 306 attached
[pid   306] set_robust_list(0x5555603266a0, 24) = 0
[pid   306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   306] chdir("./0")                = 0
[pid   306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   306] setpgid(0, 0)               = 0
[pid   306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   306] write(3, "1000", 4)         = 4
[pid   306] close(3)                    = 0
[pid   306] symlink("/dev/binderfs", "./binderfs") = 0
[pid   306] write(1, "executing program\n", 18) = 18
[pid   306] futex(0x7f9649f75b2c, FUTEX_WAKE_PRIVATE, 1000000) = 0
executing program
[pid   306] rt_sigaction(SIGRT_1, {sa_handler=0x7f9649ed7090, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f9649ec9040}, NULL, 8) = 0
[pid   306] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f9649e83000
[pid   306] mprotect(0x7f9649e84000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f9649ea3990, parent_tid=0x7f9649ea3990, exit_signal=0, stack=0x7f9649e83000, stack_size=0x20300, tls=0x7f9649ea36c0} => {parent_tid=[3]}, 88) = 3
[pid   306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   306] futex(0x7f9649f75b28, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f9649f75b2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}ci2-android-6-1/strace-static-x86_64: Process 307 attached
 <unfinished ...>
[pid   307] set_robust_list(0x7f9649ea39a0, 24) = 0
[pid   307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   307] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   307] futex(0x7f9649f75b2c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] <... futex resumed>)        = 0
[pid   306] futex(0x7f9649f75b28, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f9649f75b2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... futex resumed>)        = 1
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[   31.288546][   T28] audit: type=1400 audit(1789818903.340:66): avc:  denied  { mounton } for  pid=305 comm="syz-executor145" path="/root/syzkaller.kUeURD/syz-tmp" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   31.289699][  T305] request_module fs-gadgetfs succeeded, but still no fs?
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL) = -1 EINVAL (Invalid argument)
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL) = -1 EINVAL (Invalid argument)
[pid   306] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7f9649f75b2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7f9649f75b3c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f9649e62000
[pid   306] mprotect(0x7f9649e63000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[   31.314352][   T28] audit: type=1400 audit(1789818903.350:67): avc:  denied  { mount } for  pid=305 comm="syz-executor145" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   31.334608][  T307] incfs: mount failed -22
[   31.346105][   T28] audit: type=1400 audit(1789818903.350:68): avc:  denied  { mounton } for  pid=305 comm="syz-executor145" path="/root/syzkaller.kUeURD/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
[   31.351509][  T307] incfs: mount failed -22
[pid   306] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f9649e82990, parent_tid=0x7f9649e82990, exit_signal=0, stack=0x7f9649e62000, stack_size=0x20300, tls=0x7f9649e826c0} => {parent_tid=[4]}, 88) = 4
[pid   306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   306] futex(0x7f9649f75b38, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] futex(0x7f9649f75b3c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULLci2-android-6-1/strace-static-x86_64: Process 308 attached
) = -1 EINVAL (Invalid argument)
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   308] set_robust_list(0x7f9649e829a0, 24 <unfinished ...>
[pid   306] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   307] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[   31.377879][   T28] audit: type=1400 audit(1789818903.350:69): avc:  denied  { mount } for  pid=305 comm="syz-executor145" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   31.385495][  T307] incfs: mount failed -22
[   31.407237][   T28] audit: type=1400 audit(1789818903.350:70): avc:  denied  { mounton } for  pid=305 comm="syz-executor145" path="/root/syzkaller.kUeURD/syz-tmp/newroot/selinux" dev="tmpfs" ino=5 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   31.412423][  T307] incfs: mount failed -22
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   308] <... set_robust_list resumed>) = 0
[pid   307] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[   31.438352][   T28] audit: type=1400 audit(1789818903.350:71): avc:  denied  { mounton } for  pid=305 comm="syz-executor145" path="/root/syzkaller.kUeURD/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
[   31.443564][  T307] incfs: mount failed -22
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   308] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid   307] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   308] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid   307] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid   307] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[   31.472916][   T28] audit: type=1400 audit(1789818903.350:72): avc:  denied  { mounton } for  pid=305 comm="syz-executor145" path="/root/syzkaller.kUeURD/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14198 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   31.478114][  T307] incfs: mount failed -22
[   31.506079][   T28] audit: type=1400 audit(1789818903.350:73): avc:  denied  { unmount } for  pid=305 comm="syz-executor145" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   31.511632][  T307] incfs: mount failed -22
[   31.536269][  T307] incfs: mount failed -22
[pid   308] sendmsg(-1, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=NULL, iov_len=0}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_OOB|MSG_MORE) = -1 EBADF (Bad file descriptor)
[pid   308] futex(0x7f9649f75b3c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   308] <... futex resumed>)        = 0
[pid   308] futex(0x7f9649f75b38, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   307] <... mount resumed>)        = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   31.541216][  T307] incfs: ino conflict with backing FS 9
[   31.547374][  T307] incfs: ino conflict with backing FS 9
[   31.553903][  T307] incfs: ino conflict with backing FS 9
[   31.560429][  T307] incfs: ino conflict with backing FS 9
[   31.566682][  T307] incfs: ino conflict with backing FS 9
[   31.574110][  T307] incfs: ino conflict with backing FS 9
[   31.580366][  T307] incfs: ino conflict with backing FS 9
[   31.586636][  T307] incfs: ino conflict with backing FS 9
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   31.592859][  T307] incfs: ino conflict with backing FS 9
[   31.599219][  T307] incfs: ino conflict with backing FS 9
[   31.605722][  T307] incfs: ino conflict with backing FS 9
[   31.612150][  T307] incfs: ino conflict with backing FS 9
[   31.618394][  T307] incfs: ino conflict with backing FS 9
[   31.624808][  T307] incfs: ino conflict with backing FS 9
[   31.631403][  T307] incfs: ino conflict with backing FS 9
[   31.637853][  T307] incfs: ino conflict with backing FS 9
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   31.644176][  T307] incfs: ino conflict with backing FS 9
[   31.650746][  T307] incfs: ino conflict with backing FS 9
[   31.657249][  T307] incfs: ino conflict with backing FS 9
[   31.663307][  T307] incfs: ino conflict with backing FS 9
[   31.669966][  T307] incfs: ino conflict with backing FS 9
[   31.677640][  T307] incfs: ino conflict with backing FS 9
[   31.684685][  T307] incfs: ino conflict with backing FS 9
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   31.692214][  T307] incfs: ino conflict with backing FS 9
[   31.699586][  T307] incfs: ino conflict with backing FS 9
[   31.706036][  T307] incfs: ino conflict with backing FS 9
[   31.713204][  T307] incfs: ino conflict with backing FS 9
[   31.720918][  T307] incfs: ino conflict with backing FS 9
[   31.727399][  T307] incfs: ino conflict with backing FS 9
[   31.734257][  T307] incfs: ino conflict with backing FS 9
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   306] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   306] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(25 <unfinished ...>
[pid   307] <... mount resumed>)        = 0
[pid   306] <... close resumed>)        = -1 EBADF (Bad file descriptor)
[pid   306] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   306] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   307] mount("", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   306] exit_group(0 <unfinished ...>
[pid   308] <... futex resumed>)        = ?
[pid   307] <... mount resumed>)        = ?
[pid   306] <... exit_group resumed>)   = ?
[pid   308] +++ exited with 0 +++
[pid   307] +++ exited with 0 +++
[pid   306] +++ exited with 0 +++
[pid   305] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=31 /* 0.31 s */} ---
[pid   305] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
[pid   305] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   305] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   305] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0
[pid   305] getdents64(3, 0x555560327750 /* 6 entries */, 32768) = 176
[pid   305] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   305] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   305] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   305] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   305] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   305] getdents64(4, 0x55556032f790 /* 2 entries */, 32768) = 48
[pid   305] getdents64(4, 0x55556032f790 /* 0 entries */, 32768) = 0
[pid   305] close(4)                    = 0
[pid   305] rmdir("./0/.incomplete")    = 0
[pid   305] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   305] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   305] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   305] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   305] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   305] getdents64(4, 0x55556032f790 /* 2 entries */, 32768) = 48
[pid   305] getdents64(4, 0x55556032f790 /* 0 entries */, 32768) = 0
[pid   305] close(4)                    = 0
[pid   305] rmdir("./0/.index")         = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   305] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[   31.741177][  T307] incfs: ino conflict with backing FS 9
[   31.747774][  T307] incfs: ino conflict with backing FS 9
[   31.777885][  T305] ------------[ cut here ]------------
[   31.785834][  T305] WARNING: CPU: 0 PID: 305 at fs/inode.c:335 drop_nlink+0xc5/0x110
[   31.797173][  T305] Modules linked in:
[   31.802234][  T305] CPU: 0 PID: 305 Comm: syz-executor145 Not tainted syzkaller #0
[   31.810548][  T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   31.822224][  T305] RIP: 0010:drop_nlink+0xc5/0x110
[   31.827897][  T305] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 b3 ac f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 bb 1e ab ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   31.848615][  T305] RSP: 0018:ffffc90000e97b60 EFLAGS: 00010293
[   31.855278][  T305] RAX: ffffffff81c64b65 RBX: ffff888123a3d368 RCX: ffff88810f75d100
[   31.864145][  T305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   31.878710][  T305] RBP: ffffc90000e97b88 R08: 0000000000000003 R09: 0000000000000004
[   31.888480][  T305] R10: dffffc0000000000 R11: fffff520001d2f5c R12: dffffc0000000000
[   31.896732][  T305] R13: 1ffff11024747a76 R14: ffff888123a3d3b0 R15: 0000000000000000
[   31.905489][  T305] FS:  00005555603263c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   31.914733][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.922442][  T305] CR2: 0000555560337798 CR3: 000000010d7c7000 CR4: 00000000003506b0
[   31.931716][  T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.940731][  T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.949012][  T305] Call Trace:
[   31.952782][  T305]  <TASK>
[   31.956147][  T305]  shmem_rmdir+0x5b/0x90
[   31.961070][  T305]  vfs_rmdir+0x381/0x4f0
[   31.965756][  T305]  incfs_kill_sb+0xfe/0x210
[   31.970376][  T305]  deactivate_locked_super+0xb5/0x120
[   31.976401][  T305]  deactivate_super+0xaf/0xe0
[   31.981336][  T305]  cleanup_mnt+0x45e/0x4e0
[   31.985914][  T305]  __cleanup_mnt+0x19/0x20
[   31.990542][  T305]  task_work_run+0x1e1/0x250
[   31.996711][  T305]  ? __cfi_task_work_run+0x10/0x10
[   32.003609][  T305]  ? path_umount+0x345/0xf60
[   32.008888][  T305]  ? __kasan_slab_free+0x11/0x20
[   32.014047][  T305]  ptrace_notify+0x23f/0x270
[   32.019006][  T305]  ? __cfi_path_umount+0x10/0x10
[   32.024251][  T305]  ? __cfi_ptrace_notify+0x10/0x10
[   32.029679][  T305]  ? user_path_at_empty+0x162/0x1c0
[   32.035993][  T305]  ? __x64_sys_umount+0x12d/0x170
[   32.041117][  T305]  ? __cfi___x64_sys_umount+0x10/0x10
[   32.047000][  T305]  ? fpregs_restore_userregs+0x128/0x260
[   32.053120][  T305]  syscall_exit_work+0x84/0x140
[   32.059044][  T305]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   32.066613][  T305]  syscall_exit_to_user_mode+0xd/0x30
[   32.073106][  T305]  do_syscall_64+0x58/0xa0
[   32.077700][  T305]  ? clear_bhb_loop+0x30/0x80
[   32.083083][  T305]  ? clear_bhb_loop+0x30/0x80
[   32.088191][  T305]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   32.094300][  T305] RIP: 0033:0x7f9649ec4187
[   32.099059][  T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 28 09 0b 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8
[   32.119547][  T305] RSP: 002b:00007ffce3e74f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   32.128579][  T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9649ec4187
[   32.139477][  T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce3e75050
[   32.148392][  T305] RBP: 00007ffce3e75050 R08: 00007ffce3e76050 R09: 00000000ffffffff
[   32.156862][  T305] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce3e76100
[   32.166233][  T305] R13: 0000555560327720 R14: 0000000000007a45 R15: 00007ffce3e76100
[   32.174410][  T305]  </TASK>
[   32.177592][  T305] ---[ end trace 0000000000000000 ]---
[   32.183531][  T305] ==================================================================
[   32.192157][  T305] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   32.200223][  T305] Write of size 4 at addr 0000000000000170 by task syz-executor145/305
[   32.208661][  T305] 
[   32.211341][  T305] CPU: 1 PID: 305 Comm: syz-executor145 Tainted: G        W          syzkaller #0
[   32.220979][  T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   32.231619][  T305] Call Trace:
[   32.234927][  T305]  <TASK>
[   32.238046][  T305]  __dump_stack+0x21/0x24
[   32.242687][  T305]  dump_stack_lvl+0x110/0x170
[   32.247488][  T305]  ? __cfi_dump_stack_lvl+0x8/0x8
[   32.252709][  T305]  ? __cfi_call_rcu+0x10/0x10
[   32.258093][  T305]  ? ihold+0x20/0x60
[   32.262398][  T305]  ? ihold+0x20/0x60
[   32.266481][  T305]  print_report+0x3d/0x60
[   32.271326][  T305]  kasan_report+0x122/0x150
[   32.275836][  T305]  ? ihold+0x20/0x60
[   32.280062][  T305]  kasan_check_range+0x249/0x2a0
[   32.285455][  T305]  __kasan_check_write+0x14/0x20
[   32.291250][  T305]  ihold+0x20/0x60
[   32.295700][  T305]  vfs_rmdir+0x24c/0x4f0
[   32.300576][  T305]  incfs_kill_sb+0xfe/0x210
[   32.305252][  T305]  deactivate_locked_super+0xb5/0x120
[   32.310931][  T305]  deactivate_super+0xaf/0xe0
[   32.316192][  T305]  cleanup_mnt+0x45e/0x4e0
[   32.320969][  T305]  __cleanup_mnt+0x19/0x20
[   32.326222][  T305]  task_work_run+0x1e1/0x250
[   32.331064][  T305]  ? __cfi_task_work_run+0x10/0x10
[   32.336209][  T305]  ? path_umount+0x345/0xf60
[   32.340924][  T305]  ? __kasan_slab_free+0x11/0x20
[   32.345918][  T305]  ptrace_notify+0x23f/0x270
[   32.350555][  T305]  ? __cfi_path_umount+0x10/0x10
[   32.355576][  T305]  ? __cfi_ptrace_notify+0x10/0x10
[   32.361209][  T305]  ? user_path_at_empty+0x162/0x1c0
[   32.366498][  T305]  ? __x64_sys_umount+0x12d/0x170
[   32.371534][  T305]  ? __cfi___x64_sys_umount+0x10/0x10
[   32.377100][  T305]  ? fpregs_restore_userregs+0x128/0x260
[   32.383194][  T305]  syscall_exit_work+0x84/0x140
[   32.388252][  T305]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   32.397920][  T305]  syscall_exit_to_user_mode+0xd/0x30
[   32.403956][  T305]  do_syscall_64+0x58/0xa0
[   32.408595][  T305]  ? clear_bhb_loop+0x30/0x80
[   32.413576][  T305]  ? clear_bhb_loop+0x30/0x80
[   32.418975][  T305]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   32.426357][  T305] RIP: 0033:0x7f9649ec4187
[   32.431837][  T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 28 09 0b 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8
[   32.454001][  T305] RSP: 002b:00007ffce3e74f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   32.462977][  T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9649ec4187
[   32.471226][  T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce3e75050
[   32.479558][  T305] RBP: 00007ffce3e75050 R08: 00007ffce3e76050 R09: 00000000ffffffff
[   32.487627][  T305] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce3e76100
[   32.495704][  T305] R13: 0000555560327720 R14: 0000000000007a45 R15: 00007ffce3e76100
[   32.504046][  T305]  </TASK>
[   32.507077][  T305] ==================================================================
[   32.515655][  T305] Disabling lock debugging due to kernel taint
[   32.522020][  T305] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   32.530028][  T305] #PF: supervisor write access in kernel mode
[   32.536181][  T305] #PF: error_code(0x0002) - not-present page
[   32.542373][  T305] PGD 0 P4D 0 
[   32.545847][  T305] Oops: 0002 [#1] PREEMPT SMP KASAN
[   32.551125][  T305] CPU: 1 PID: 305 Comm: syz-executor145 Tainted: G    B   W          syzkaller #0
[   32.561005][  T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   32.571487][  T305] RIP: 0010:ihold+0x26/0x60
[   32.576086][  T305] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 21 16 ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 f0 a3 f0 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 11
[   32.597256][  T305] RSP: 0018:ffffc90000e97ba0 EFLAGS: 00010246
[   32.603344][  T305] RAX: ffff88810f75d100 RBX: 0000000000000000 RCX: ffff88810f75d100
[   32.611903][  T305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   32.620726][  T305] RBP: ffffc90000e97bb0 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc
[   32.628790][  T305] R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: ffff888123a3d374
[   32.637971][  T305] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   32.646575][  T305] FS:  00005555603263c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   32.655710][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.663067][  T305] CR2: 0000000000000170 CR3: 000000010d7c7000 CR4: 00000000003506a0
[   32.671319][  T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.679392][  T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.687803][  T305] Call Trace:
[   32.691213][  T305]  <TASK>
[   32.694345][  T305]  vfs_rmdir+0x24c/0x4f0
[   32.699174][  T305]  incfs_kill_sb+0xfe/0x210
[   32.703698][  T305]  deactivate_locked_super+0xb5/0x120
[   32.709230][  T305]  deactivate_super+0xaf/0xe0
[   32.713917][  T305]  cleanup_mnt+0x45e/0x4e0
[   32.718444][  T305]  __cleanup_mnt+0x19/0x20
[   32.723042][  T305]  task_work_run+0x1e1/0x250
[   32.727692][  T305]  ? __cfi_task_work_run+0x10/0x10
[   32.733220][  T305]  ? path_umount+0x345/0xf60
[   32.737817][  T305]  ? __kasan_slab_free+0x11/0x20
[   32.742858][  T305]  ptrace_notify+0x23f/0x270
[   32.747671][  T305]  ? __cfi_path_umount+0x10/0x10
[   32.752841][  T305]  ? __cfi_ptrace_notify+0x10/0x10
[   32.758450][  T305]  ? user_path_at_empty+0x162/0x1c0
[   32.763675][  T305]  ? __x64_sys_umount+0x12d/0x170
[   32.768992][  T305]  ? __cfi___x64_sys_umount+0x10/0x10
[   32.774585][  T305]  ? fpregs_restore_userregs+0x128/0x260
[   32.780821][  T305]  syscall_exit_work+0x84/0x140
[   32.786046][  T305]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   32.792844][  T305]  syscall_exit_to_user_mode+0xd/0x30
[   32.798509][  T305]  do_syscall_64+0x58/0xa0
[   32.803327][  T305]  ? clear_bhb_loop+0x30/0x80
[   32.808659][  T305]  ? clear_bhb_loop+0x30/0x80
[   32.813374][  T305]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   32.819290][  T305] RIP: 0033:0x7f9649ec4187
[   32.823877][  T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 28 09 0b 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d0 ff ff ff f7 d8 64 89 02 b8
[   32.845095][  T305] RSP: 002b:00007ffce3e74f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   32.854672][  T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9649ec4187
[   32.864430][  T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce3e75050
[   32.872868][  T305] RBP: 00007ffce3e75050 R08: 00007ffce3e76050 R09: 00000000ffffffff
[   32.881291][  T305] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce3e76100
[   32.889366][  T305] R13: 0000555560327720 R14: 0000000000007a45 R15: 00007ffce3e76100
[   32.897468][  T305]  </TASK>
[   32.900860][  T305] Modules linked in:
[   32.905121][  T305] CR2: 0000000000000170
[   32.909612][  T305] ---[ end trace 0000000000000000 ]---
[   32.915667][  T305] RIP: 0010:ihold+0x26/0x60
[   32.920645][  T305] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 21 16 ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 f0 a3 f0 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 11
[   32.940971][  T305] RSP: 0018:ffffc90000e97ba0 EFLAGS: 00010246
[   32.947320][  T305] RAX: ffff88810f75d100 RBX: 0000000000000000 RCX: ffff88810f75d100
[   32.955386][  T305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   32.963872][  T305] RBP: ffffc90000e97bb0 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc
[   32.972289][  T305] R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: ffff888123a3d374
[   32.980540][  T305] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   32.989302][  T305] FS:  00005555603263c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[   32.998352][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.004955][  T305] CR2: 0000000000000170 CR3: 000000010d7c7000 CR4: 00000000003506a0
[   33.013040][  T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   33.021205][  T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   33.029748][  T305] Kernel panic - not syncing: Fatal exception
[   33.036397][  T305] Kernel Offset: disabled
[   33.041026][  T305] Rebooting in 86400 seconds..