ci2-android-5-10/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-10/syz-executor1918242311

<...>
Warning: Permanently added '10.128.1.23' (ED25519) to the list of known hosts.
execve("ci2-android-5-10/syz-executor1918242311", ["ci2-android-5-10/syz-executor1918242311"], 0x7ffc14cb4a80 /* 10 vars */) = 0
brk(NULL)                               = 0x55556db03000
brk(0x55556db03d40)                     = 0x55556db03d40
arch_prctl(ARCH_SET_FS, 0x55556db033c0) = 0
set_tid_address(0x55556db03690)         = 297
set_robust_list(0x55556db036a0, 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-5-10/syz-executor1918242311", 4096) = 45
getrandom("\x12\x9d\x45\xc8\x4b\xab\x95\x75", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55556db03d40
brk(0x55556db24d40)                     = 0x55556db24d40
brk(0x55556db25000)                     = 0x55556db25000
mprotect(0x7fd2f3e49000, 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("\xed\xe6\x4c\x49\x4c\x0e\x72\x5a", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.HShjBp", 0700)       = 0
chmod("./syzkaller.HShjBp", 0777)       = 0
chdir("./syzkaller.HShjBp")             = 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=0x55556db03690) = 298
ci2-android-5-10/strace-static-x86_64: Process 298 attached
[pid   297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   298] set_robust_list(0x55556db036a0, 24) = 0
[pid   298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   298] getppid()                   = 0
[pid   298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   298] unshare(CLONE_NEWNS)        = 0
[pid   298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   298] unshare(CLONE_NEWCGROUP)    = 0
[pid   298] unshare(CLONE_NEWUTS)       = 0
[pid   298] unshare(CLONE_SYSVSEM)      = 0
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   298] getpid()                    = 1
[pid   298] 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   298] 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   298] unshare(CLONE_NEWNET)       = 0
[pid   298] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   298] write(3, "0 65535", 7)      = 7
[pid   298] close(3)                    = 0
[pid   298] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   298] write(3, "100000", 6)       = 6
[pid   298] close(3)                    = 0
[pid   298] mkdir("./syz-tmp", 0777)    = 0
[   25.988715][   T24] audit: type=1400 audit(1786263792.530:64): avc:  denied  { execmem } for  pid=297 comm="syz-executor191" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   26.011428][   T24] audit: type=1400 audit(1786263792.550:65): avc:  denied  { mounton } for  pid=298 comm="syz-executor191" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   298] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   298] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   298] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   298] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   298] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   298] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   298] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] 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   298] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   298] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   298] 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   298] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   298] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   298] chdir("/")                  = 0
[pid   298] umount2("./pivot", MNT_DETACH) = 0
[   26.045061][   T24] audit: type=1400 audit(1786263792.590:66): avc:  denied  { mounton } for  pid=298 comm="syz-executor191" path="/root/syzkaller.HShjBp/syz-tmp" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   26.069677][   T24] audit: type=1400 audit(1786263792.590:67): avc:  denied  { mount } for  pid=298 comm="syz-executor191" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   298] chroot("./newroot")         = 0
[pid   298] chdir("/")                  = 0
[pid   298] mkdir("/dev/gadgetfs", 0777) = 0
[pid   298] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   298] mkdir("/dev/binderfs", 0777) = 0
[pid   298] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   298] mkdir("./0", 0777)          = 0
[pid   298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556db03690) = 2
[pid   298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-5-10/strace-static-x86_64: Process 299 attached
[pid   299] set_robust_list(0x55556db036a0, 24) = 0
[pid   299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[   26.091868][   T24] audit: type=1400 audit(1786263792.600:68): avc:  denied  { mounton } for  pid=298 comm="syz-executor191" path="/root/syzkaller.HShjBp/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
[   26.100290][  T298] request_module fs-gadgetfs succeeded, but still no fs?
[pid   299] chdir("./0")                = 0
[pid   299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   299] setpgid(0, 0)               = 0
[pid   299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   299] write(3, "1000", 4)         = 4
[pid   299] close(3)                    = 0
[pid   299] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   299] write(1, "executing program\n", 18) = 18
[pid   299] futex(0x7fd2f3e4fb2c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] rt_sigaction(SIGRT_1, {sa_handler=0x7fd2f3db1090, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd2f3da3040}, NULL, 8) = 0
[pid   299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid   299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd2f3d5d000
[pid   299] mprotect(0x7fd2f3d5e000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd2f3d7d990, parent_tid=0x7fd2f3d7d990, exit_signal=0, stack=0x7fd2f3d5d000, stack_size=0x20300, tls=0x7fd2f3d7d6c0} => {parent_tid=[3]}, 88) = 3
[pid   299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   299] futex(0x7fd2f3e4fb28, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] futex(0x7fd2f3e4fb2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}ci2-android-5-10/strace-static-x86_64: Process 300 attached
 <unfinished ...>
[pid   300] set_robust_list(0x7fd2f3d7d9a0, 24) = 0
[pid   300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   300] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   300] futex(0x7fd2f3e4fb2c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... futex resumed>)        = 0
[pid   299] futex(0x7fd2f3e4fb28, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] futex(0x7fd2f3e4fb2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... futex resumed>)        = 1
[pid   300] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0
[   26.117359][   T24] audit: type=1400 audit(1786263792.600:69): avc:  denied  { mount } for  pid=298 comm="syz-executor191" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   26.146231][   T24] audit: type=1400 audit(1786263792.610:70): avc:  denied  { mounton } for  pid=298 comm="syz-executor191" path="/root/syzkaller.HShjBp/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
[pid   300] mount("./file0", "./file0", "incremental-fs", 0, NULL) = -1 EINVAL (Invalid argument)
[pid   300] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   299] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   299] futex(0x7fd2f3e4fb3c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd2f3d3c000
[pid   299] mprotect(0x7fd2f3d3d000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd2f3d5c990, parent_tid=0x7fd2f3d5c990, exit_signal=0, stack=0x7fd2f3d3c000, stack_size=0x20300, tls=0x7fd2f3d5c6c0} => {parent_tid=[4]}, 88) = 4
[pid   299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   299] futex(0x7fd2f3e4fb38, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   299] futex(0x7fd2f3e4fb3c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[   26.173294][   T24] audit: type=1400 audit(1786263792.620:71): avc:  denied  { mounton } for  pid=298 comm="syz-executor191" path="/root/syzkaller.HShjBp/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14117 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   26.183681][  T300] incfs: mount failed -22
[   26.201123][   T24] audit: type=1400 audit(1786263792.630:72): avc:  denied  { unmount } for  pid=298 comm="syz-executor191" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   26.208209][  T300] incfs: mount failed -22
[pid   300] mount("./file0", "./file0", "incremental-fs", 0, NULLci2-android-5-10/strace-static-x86_64: Process 301 attached
) = -1 EINVAL (Invalid argument)
[pid   300] mount("./file0", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   301] set_robust_list(0x7fd2f3d5c9a0, 24) = 0
[pid   301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   301] 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   301] futex(0x7fd2f3e4fb3c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   299] <... futex resumed>)        = 0
[pid   301] futex(0x7fd2f3e4fb38, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   300] <... mount resumed>)        = -1 EINVAL (Invalid argument)
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   26.226188][   T24] audit: type=1400 audit(1786263792.640:73): avc:  denied  { mounton } for  pid=298 comm="syz-executor191" path="/dev/gadgetfs" dev="devtmpfs" ino=517 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   26.239645][  T300] incfs: mount failed -22
[   26.258130][  T300] incfs: mount failed -22
[   26.263153][  T300] incfs: ino conflict with backing FS 9
[   26.269287][  T300] incfs: ino conflict with backing FS 9
[   26.275458][  T300] incfs: ino conflict with backing FS 9
[   26.281495][  T300] incfs: ino conflict with backing FS 9
[   26.287952][  T300] incfs: ino conflict with backing FS 9
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   26.294196][  T300] incfs: ino conflict with backing FS 9
[   26.300262][  T300] incfs: ino conflict with backing FS 9
[   26.306408][  T300] incfs: ino conflict with backing FS 9
[   26.312720][  T300] incfs: ino conflict with backing FS 9
[   26.318818][  T300] incfs: ino conflict with backing FS 9
[   26.324977][  T300] incfs: ino conflict with backing FS 9
[   26.331138][  T300] incfs: ino conflict with backing FS 9
[   26.337526][  T300] incfs: ino conflict with backing FS 9
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   26.343668][  T300] incfs: ino conflict with backing FS 9
[   26.349872][  T300] incfs: ino conflict with backing FS 9
[   26.356001][  T300] incfs: ino conflict with backing FS 9
[   26.363465][  T300] incfs: ino conflict with backing FS 9
[   26.369614][  T300] incfs: ino conflict with backing FS 9
[   26.375867][  T300] incfs: ino conflict with backing FS 9
[   26.381937][  T300] incfs: ino conflict with backing FS 9
[   26.388047][  T300] incfs: ino conflict with backing FS 9
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   26.394320][  T300] incfs: ino conflict with backing FS 9
[   26.400447][  T300] incfs: ino conflict with backing FS 9
[   26.406582][  T300] incfs: ino conflict with backing FS 9
[   26.412885][  T300] incfs: ino conflict with backing FS 9
[   26.418961][  T300] incfs: ino conflict with backing FS 9
[   26.425101][  T300] incfs: ino conflict with backing FS 9
[   26.431261][  T300] incfs: ino conflict with backing FS 9
[   26.437445][  T300] incfs: ino conflict with backing FS 9
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[   26.443746][  T300] incfs: ino conflict with backing FS 9
[   26.449852][  T300] incfs: ino conflict with backing FS 9
[   26.455966][  T300] incfs: ino conflict with backing FS 9
[   26.462234][  T300] incfs: ino conflict with backing FS 9
[   26.468470][  T300] incfs: ino conflict with backing FS 9
[   26.474567][  T300] incfs: ino conflict with backing FS 9
[   26.480749][  T300] incfs: ino conflict with backing FS 9
[   26.486925][  T300] incfs: ino conflict with backing FS 9
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL) = 0
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   299] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(5 <unfinished ...>
[pid   300] <... mount resumed>)        = 0
[pid   299] <... close resumed>)        = -1 EBADF (Bad file descriptor)
[pid   299] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   299] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   299] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   300] mount("", "./file0", "incremental-fs", 0, NULL <unfinished ...>
[pid   299] exit_group(0 <unfinished ...>
[pid   301] <... futex resumed>)        = ?
[pid   299] <... exit_group resumed>)   = ?
[pid   301] +++ exited with 0 +++
[pid   300] <... mount resumed>)        = ?
[pid   300] +++ exited with 0 +++
[pid   299] +++ exited with 0 +++
[pid   298] --- 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   298] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
[pid   298] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   298] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0
[pid   298] getdents64(3, 0x55556db04750 /* 6 entries */, 32768) = 176
[pid   298] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   298] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   298] getdents64(4, 0x55556db0c790 /* 2 entries */, 32768) = 48
[pid   298] getdents64(4, 0x55556db0c790 /* 0 entries */, 32768) = 0
[pid   298] close(4)                    = 0
[pid   298] rmdir("./0/.incomplete")    = 0
[pid   298] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   298] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   298] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   298] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   298] getdents64(4, 0x55556db0c790 /* 2 entries */, 32768) = 48
[pid   298] getdents64(4, 0x55556db0c790 /* 0 entries */, 32768) = 0
[pid   298] close(4)                    = 0
[pid   298] rmdir("./0/.index")         = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[pid   298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0
[   26.493365][  T300] incfs: ino conflict with backing FS 9
[   26.499575][  T300] incfs: ino conflict with backing FS 9
[   26.505835][  T300] incfs: ino conflict with backing FS 9
[   26.512154][  T300] incfs: ino conflict with backing FS 9
[   26.518583][  T300] incfs: ino conflict with backing FS 9
[   26.524610][  T300] incfs: ino conflict with backing FS 9
[   26.532969][  T300] incfs: ino conflict with backing FS 9
[   26.565889][  T298] ------------[ cut here ]------------
[   26.571428][  T298] WARNING: CPU: 1 PID: 298 at fs/inode.c:304 drop_nlink+0xc5/0x110
[   26.579562][  T298] Modules linked in:
[   26.583508][  T298] CPU: 0 PID: 298 Comm: syz-executor191 Not tainted syzkaller #0
[   26.591456][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   26.601731][  T298] RIP: 0010:drop_nlink+0xc5/0x110
[   26.606836][  T298] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 33 fd f1 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fb 85 b7 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   26.626594][  T298] RSP: 0018:ffffc90000ad7c10 EFLAGS: 00010293
[   26.632659][  T298] RAX: ffffffff81ad1fe5 RBX: ffff88810ae31d60 RCX: ffff88812083bb40
[   26.640764][  T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.648817][  T298] RBP: ffffc90000ad7c38 R08: 0000000000000003 R09: 0000000000000004
[   26.656887][  T298] R10: dffffc0000000000 R11: fffff5200015af70 R12: dffffc0000000000
[   26.664894][  T298] R13: 1ffff110215c63b5 R14: ffff88810ae31da8 R15: 0000000000000000
[   26.672928][  T298] FS:  000055556db033c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   26.682082][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.688865][  T298] CR2: 000055556db14798 CR3: 000000010af21000 CR4: 00000000003506b0
[   26.696932][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.704942][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.712913][  T298] Call Trace:
[   26.716283][  T298]  shmem_rmdir+0x5b/0x90
[   26.720574][  T298]  vfs_rmdir+0x1ab/0x3c0
[   26.724864][  T298]  incfs_kill_sb+0xf7/0x200
[   26.729576][  T298]  deactivate_locked_super+0xa0/0x100
[   26.735029][  T298]  deactivate_super+0xaf/0xe0
[   26.739734][  T298]  cleanup_mnt+0x44f/0x500
[   26.744216][  T298]  __cleanup_mnt+0x19/0x20
[   26.748839][  T298]  task_work_run+0x127/0x190
[   26.753439][  T298]  ptrace_notify+0x230/0x270
[   26.758114][  T298]  ? do_notify_parent+0x810/0x810
[   26.763172][  T298]  ? user_path_at_empty+0x43/0x50
[   26.768328][  T298]  ? __x64_sys_umount+0x12d/0x170
[   26.773380][  T298]  ? path_umount+0xfa0/0xfa0
[   26.778171][  T298]  syscall_exit_work+0x6e/0x140
[   26.783096][  T298]  syscall_exit_to_user_mode+0x2f/0x40
[   26.788643][  T298]  do_syscall_64+0x3d/0x40
[   26.793091][  T298]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   26.799063][  T298] RIP: 0033:0x7fd2f3d9e187
[   26.803524][  T298] 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
[   26.823228][  T298] RSP: 002b:00007ffd1fb77e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   26.831823][  T298] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd2f3d9e187
[   26.840089][  T298] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd1fb77f30
[   26.849153][  T298] RBP: 00007ffd1fb77f30 R08: 00007ffd1fb78f30 R09: 00000000ffffffff
[   26.857207][  T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1fb78fe0
[   26.865246][  T298] R13: 000055556db04720 R14: 00000000000065fa R15: 00007ffd1fb78fe0
[   26.873326][  T298] ---[ end trace e7016014180cfa54 ]---
[   26.879142][  T298] ==================================================================
[   26.887239][  T298] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   26.893498][  T298] Write of size 4 at addr 0000000000000170 by task syz-executor191/298
[   26.901816][  T298] 
[   26.904230][  T298] CPU: 0 PID: 298 Comm: syz-executor191 Tainted: G        W         syzkaller #0
[   26.913331][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   26.923406][  T298] Call Trace:
[   26.926700][  T298]  __dump_stack+0x21/0x24
[   26.931025][  T298]  dump_stack_lvl+0x1a7/0x208
[   26.935785][  T298]  ? thaw_kernel_threads+0x220/0x220
[   26.941153][  T298]  ? show_regs_print_info+0x18/0x18
[   26.946351][  T298]  ? _raw_spin_lock+0x94/0xf0
[   26.951026][  T298]  ? _raw_spin_trylock_bh+0x150/0x150
[   26.956396][  T298]  ? ihold+0x20/0x60
[   26.960291][  T298]  kasan_report+0xbd/0x140
[   26.964703][  T298]  ? ihold+0x20/0x60
[   26.968592][  T298]  kasan_check_range+0x249/0x2a0
[   26.973521][  T298]  __kasan_check_write+0x14/0x20
[   26.978452][  T298]  ihold+0x20/0x60
[   26.982175][  T298]  vfs_rmdir+0x2d5/0x3c0
[   26.986410][  T298]  incfs_kill_sb+0xf7/0x200
[   26.990910][  T298]  deactivate_locked_super+0xa0/0x100
[   26.996275][  T298]  deactivate_super+0xaf/0xe0
[   27.000949][  T298]  cleanup_mnt+0x44f/0x500
[   27.005526][  T298]  __cleanup_mnt+0x19/0x20
[   27.009948][  T298]  task_work_run+0x127/0x190
[   27.014580][  T298]  ptrace_notify+0x230/0x270
[   27.019259][  T298]  ? do_notify_parent+0x810/0x810
[   27.024288][  T298]  ? user_path_at_empty+0x43/0x50
[   27.029343][  T298]  ? __x64_sys_umount+0x12d/0x170
[   27.034377][  T298]  ? path_umount+0xfa0/0xfa0
[   27.038976][  T298]  syscall_exit_work+0x6e/0x140
[   27.043839][  T298]  syscall_exit_to_user_mode+0x2f/0x40
[   27.049331][  T298]  do_syscall_64+0x3d/0x40
[   27.053752][  T298]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   27.059649][  T298] RIP: 0033:0x7fd2f3d9e187
[   27.064063][  T298] 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
[   27.083844][  T298] RSP: 002b:00007ffd1fb77e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   27.092297][  T298] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd2f3d9e187
[   27.100275][  T298] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd1fb77f30
[   27.108260][  T298] RBP: 00007ffd1fb77f30 R08: 00007ffd1fb78f30 R09: 00000000ffffffff
[   27.116318][  T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1fb78fe0
[   27.124604][  T298] R13: 000055556db04720 R14: 00000000000065fa R15: 00007ffd1fb78fe0
[   27.132585][  T298] ==================================================================
[   27.140732][  T298] Disabling lock debugging due to kernel taint
[   27.147244][  T298] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   27.155569][  T298] #PF: supervisor write access in kernel mode
[   27.161932][  T298] #PF: error_code(0x0002) - not-present page
[   27.167912][  T298] PGD 0 P4D 0 
[   27.171439][  T298] Oops: 0002 [#1] PREEMPT SMP KASAN
[   27.176915][  T298] CPU: 0 PID: 298 Comm: syz-executor191 Tainted: G    B   W         syzkaller #0
[   27.186451][  T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   27.196519][  T298] RIP: 0010:ihold+0x26/0x60
[   27.201017][  T298] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 11 7e b7 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 20 f5 f1 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 91
[   27.220653][  T298] RSP: 0018:ffffc90000ad7c50 EFLAGS: 00010246
[   27.226858][  T298] RAX: ffff88812083bb00 RBX: 0000000000000000 RCX: ffff88812083bb40
[   27.234844][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   27.242916][  T298] RBP: ffffc90000ad7c60 R08: 0000000000000003 R09: 0000000000000004
[   27.250901][  T298] R10: dffffc0000000000 R11: fffffbfff0dcf648 R12: dffffc0000000000
[   27.258881][  T298] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   27.267033][  T298] FS:  000055556db033c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   27.276162][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.283088][  T298] CR2: 0000000000000170 CR3: 000000010af21000 CR4: 00000000003506b0
[   27.291110][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.299091][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.307064][  T298] Call Trace:
[   27.310453][  T298]  vfs_rmdir+0x2d5/0x3c0
[   27.314727][  T298]  incfs_kill_sb+0xf7/0x200
[   27.319244][  T298]  deactivate_locked_super+0xa0/0x100
[   27.324626][  T298]  deactivate_super+0xaf/0xe0
[   27.329315][  T298]  cleanup_mnt+0x44f/0x500
[   27.333768][  T298]  __cleanup_mnt+0x19/0x20
[   27.338241][  T298]  task_work_run+0x127/0x190
[   27.342963][  T298]  ptrace_notify+0x230/0x270
[   27.347569][  T298]  ? do_notify_parent+0x810/0x810
[   27.352613][  T298]  ? user_path_at_empty+0x43/0x50
[   27.357640][  T298]  ? __x64_sys_umount+0x12d/0x170
[   27.362663][  T298]  ? path_umount+0xfa0/0xfa0
[   27.367340][  T298]  syscall_exit_work+0x6e/0x140
[   27.372195][  T298]  syscall_exit_to_user_mode+0x2f/0x40
[   27.377696][  T298]  do_syscall_64+0x3d/0x40
[   27.382131][  T298]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   27.388042][  T298] RIP: 0033:0x7fd2f3d9e187
[   27.392466][  T298] 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
[   27.412081][  T298] RSP: 002b:00007ffd1fb77e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[   27.420546][  T298] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd2f3d9e187
[   27.428559][  T298] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd1fb77f30
[   27.436640][  T298] RBP: 00007ffd1fb77f30 R08: 00007ffd1fb78f30 R09: 00000000ffffffff
[   27.444618][  T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1fb78fe0
[   27.452612][  T298] R13: 000055556db04720 R14: 00000000000065fa R15: 00007ffd1fb78fe0
[   27.460586][  T298] Modules linked in:
[   27.464508][  T298] CR2: 0000000000000170
[   27.468670][  T298] ---[ end trace e7016014180cfa55 ]---
[   27.474150][  T298] RIP: 0010:ihold+0x26/0x60
[   27.478672][  T298] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 11 7e b7 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 20 f5 f1 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 91
[   27.498656][  T298] RSP: 0018:ffffc90000ad7c50 EFLAGS: 00010246
[   27.504724][  T298] RAX: ffff88812083bb00 RBX: 0000000000000000 RCX: ffff88812083bb40
[   27.512707][  T298] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   27.520706][  T298] RBP: ffffc90000ad7c60 R08: 0000000000000003 R09: 0000000000000004
[   27.528679][  T298] R10: dffffc0000000000 R11: fffffbfff0dcf648 R12: dffffc0000000000
[   27.536666][  T298] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
[   27.544657][  T298] FS:  000055556db033c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   27.553584][  T298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.560168][  T298] CR2: 0000000000000170 CR3: 000000010af21000 CR4: 00000000003506b0
[   27.568151][  T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.576125][  T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.584096][  T298] Kernel panic - not syncing: Fatal exception
[   27.590308][  T298] Kernel Offset: disabled
[   27.594648][  T298] Rebooting in 86400 seconds..