ci2-android-5-15/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-15/syz-executor445131660

<...>
Warning: Permanently added '10.128.0.239' (ED25519) to the list of known hosts.
execve("ci2-android-5-15/syz-executor445131660", ["ci2-android-5-15/syz-executor445131660"], 0x7ffd01bdcdb0 /* 10 vars */) = 0
brk(NULL)                               = 0x55557ef00000
brk(0x55557ef00e00)                     = 0x55557ef00e00
arch_prctl(ARCH_SET_FS, 0x55557ef00480) = 0
set_tid_address(0x55557ef00750)         = 303
set_robust_list(0x55557ef00760, 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-5-15/syz-executor445131660", 4096) = 44
getrandom("\x83\x15\x69\x13\x54\xac\x90\xc0", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557ef00e00
brk(0x55557ef21e00)                     = 0x55557ef21e00
brk(0x55557ef22000)                     = 0x55557ef22000
mprotect(0x7f9ddb338000, 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
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f9ddb28feb0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9ddb293590}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f9ddb28feb0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9ddb293590}, NULL, 8) = 0
getrandom("\x79\x40\xe3\x77\xff\xb8\xc6\x5b", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.jAlJTa", 0700)       = 0
chmod("./syzkaller.jAlJTa", 0777)       = 0
chdir("./syzkaller.jAlJTa")             = 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=0x55557ef00750) = 304
ci2-android-5-15/strace-static-x86_64: Process 304 attached
[pid   304] set_robust_list(0x55557ef00760, 24) = 0
[pid   304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   304] getppid()                   = 0
[pid   304] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   304] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   304] unshare(CLONE_NEWNS <unfinished ...>
[pid   303] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid   304] <... unshare resumed>)      = 0
[pid   304] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL <unfinished ...>
[pid   303] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid   304] <... mount resumed>)        = 0
[pid   304] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   304] unshare(CLONE_NEWCGROUP)    = 0
[pid   304] unshare(CLONE_NEWUTS)       = 0
[pid   304] unshare(CLONE_SYSVSEM)      = 0
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   304] getpid()                    = 1
[pid   304] 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   304] 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   304] unshare(CLONE_NEWNET)       = 0
[pid   304] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   304] write(3, "0 65535", 7)      = 7
[pid   304] close(3)                    = 0
[pid   304] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   304] write(3, "100000", 6)       = 6
[pid   304] close(3)                    = 0
[pid   304] mkdir("./syz-tmp", 0777)    = 0
[   27.188759][   T30] audit: type=1400 audit(1789868824.810:64): avc:  denied  { execmem } for  pid=303 comm="syz-executor445" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   27.215144][   T30] audit: type=1400 audit(1789868824.830:65): avc:  denied  { mounton } for  pid=304 comm="syz-executor445" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   304] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   304] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   304] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   304] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   304] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   304] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   304] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] 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   304] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   304] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   304] 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   304] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   304] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   304] chdir("/")                  = 0
[pid   304] umount2("./pivot", MNT_DETACH) = 0
[pid   304] chroot("./newroot")         = 0
[pid   304] chdir("/")                  = 0
[   27.248589][   T30] audit: type=1400 audit(1789868824.870:66): avc:  denied  { mounton } for  pid=304 comm="syz-executor445" path="/root/syzkaller.jAlJTa/syz-tmp" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   27.273149][   T30] audit: type=1400 audit(1789868824.870:67): avc:  denied  { mount } for  pid=304 comm="syz-executor445" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   304] mkdir("/dev/gadgetfs", 0777) = 0
[pid   304] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   304] mkdir("/dev/binderfs", 0777) = 0
[pid   304] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   304] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   304] mkdir("./0", 0777)          = 0
[pid   304] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   304] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[   27.295354][   T30] audit: type=1400 audit(1789868824.870:68): avc:  denied  { mounton } for  pid=304 comm="syz-executor445" path="/root/syzkaller.jAlJTa/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
[   27.304892][  T304] request_module fs-gadgetfs succeeded, but still no fs?
[pid   304] close(3)                    = 0
[pid   304] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   304] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557ef00750) = 2
[pid   304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-5-15/strace-static-x86_64: Process 306 attached
[pid   306] set_robust_list(0x55557ef00760, 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
executing program
[pid   306] write(1, "executing program\n", 18) = 18
[pid   306] mkdir("./bus", 0777)        = 0
[pid   306] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   306] mount(".", "./bus", "incremental-fs", MS_NOSUID|MS_REC|MS_SILENT, NULL) = 0
[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)
[   27.321231][   T30] audit: type=1400 audit(1789868824.870:69): avc:  denied  { mount } for  pid=304 comm="syz-executor445" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   27.349954][   T30] audit: type=1400 audit(1789868824.890:70): avc:  denied  { mounton } for  pid=304 comm="syz-executor445" path="/root/syzkaller.jAlJTa/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
[   27.380477][  T306] incfs: ino conflict with backing FS 9
[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)                   = -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   306] exit_group(0)               = ?
[pid   306] +++ exited with 0 +++
[pid   304] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   304] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
[pid   304] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   304] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   304] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0
[pid   304] getdents64(3, 0x55557ef01810 /* 6 entries */, 32768) = 168
[pid   304] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   304] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   304] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   304] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   304] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   304] getdents64(4, 0x55557ef09850 /* 2 entries */, 32768) = 48
[pid   304] getdents64(4, 0x55557ef09850 /* 0 entries */, 32768) = 0
[pid   304] close(4)                    = 0
[pid   304] rmdir("./0/.incomplete")    = 0
[pid   304] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   304] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   304] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   304] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   304] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   304] getdents64(4, 0x55557ef09850 /* 2 entries */, 32768) = 48
[pid   304] getdents64(4, 0x55557ef09850 /* 0 entries */, 32768) = 0
[pid   304] close(4)                    = 0
[pid   304] rmdir("./0/.index")         = 0
[   27.387417][   T30] audit: type=1400 audit(1789868824.890:71): avc:  denied  { mounton } for  pid=304 comm="syz-executor445" path="/root/syzkaller.jAlJTa/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=15028 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   27.415171][   T30] audit: type=1400 audit(1789868824.890:72): avc:  denied  { unmount } for  pid=304 comm="syz-executor445" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   27.435033][   T30] audit: type=1400 audit(1789868824.910:73): avc:  denied  { mounton } for  pid=304 comm="syz-executor445" path="/dev/gadgetfs" dev="devtmpfs" ino=556 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   27.435350][  T304] ------------[ cut here ]------------
[   27.463651][  T304] WARNING: CPU: 1 PID: 304 at fs/inode.c:335 drop_nlink+0xc5/0x110
[   27.471743][  T304] Modules linked in:
[   27.475684][  T304] CPU: 1 PID: 304 Comm: syz-executor445 Not tainted syzkaller #0
[   27.483471][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   27.493623][  T304] RIP: 0010:drop_nlink+0xc5/0x110
[   27.498709][  T304] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 93 0a f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7b 92 b2 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   27.518396][  T304] RSP: 0018:ffffc90000987bd0 EFLAGS: 00010293
[   27.524488][  T304] RAX: ffffffff81b73525 RBX: ffff888123c3df28 RCX: ffff88810ad42780
[   27.532541][  T304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   27.540549][  T304] RBP: ffffc90000987bf8 R08: 0000000000000003 R09: 0000000000000004
[   27.548561][  T304] R10: dffffc0000000000 R11: fffff52000130f68 R12: dffffc0000000000
[   27.556569][  T304] R13: 1ffff11024787bee R14: ffff888123c3df70 R15: 0000000000000000
[   27.564616][  T304] FS:  000055557ef00480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   27.573607][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.580243][  T304] CR2: 000055a0c80fce38 CR3: 000000012474a000 CR4: 00000000003506a0
[   27.588287][  T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.596270][  T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.604328][  T304] Call Trace:
[   27.607675][  T304]  <TASK>
[   27.610624][  T304]  shmem_rmdir+0x5b/0x90
[   27.614873][  T304]  vfs_rmdir+0x1ae/0x450
[   27.619186][  T304]  incfs_kill_sb+0xfe/0x210
[   27.623709][  T304]  deactivate_locked_super+0xa0/0x100
[   27.629194][  T304]  deactivate_super+0xaf/0xe0
[   27.633897][  T304]  cleanup_mnt+0x44f/0x500
[   27.638359][  T304]  __cleanup_mnt+0x19/0x20
[   27.642794][  T304]  task_work_run+0x127/0x190
[   27.647438][  T304]  ptrace_notify+0x230/0x270
[   27.652055][  T304]  ? do_notify_parent+0x830/0x830
[   27.657085][  T304]  ? user_path_at_empty+0x162/0x1c0
[   27.662340][  T304]  ? __x64_sys_umount+0x12d/0x170
[   27.667424][  T304]  ? path_umount+0xfa0/0xfa0
[   27.672042][  T304]  syscall_exit_work+0x87/0x160
[   27.676892][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   27.683203][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   27.688638][  T304]  do_syscall_64+0x58/0xa0
[   27.693058][  T304]  ? clear_bhb_loop+0x50/0xa0
[   27.697799][  T304]  ? clear_bhb_loop+0x50/0xa0
[   27.702504][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   27.708455][  T304] RIP: 0033:0x7f9ddb2ad6a7
[   27.712908][  T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 e4 03 09 00 00 00 00 00 eb 96 e8 d1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
[   27.732623][  T304] RSP: 002b:00007fff2a186cc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   27.741081][  T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9ddb2ad6a7
[   27.749123][  T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2a186d80
[   27.757113][  T304] RBP: 00007fff2a186d80 R08: 00007fff2a187d80 R09: 00000000ffffffff
[   27.765160][  T304] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2a187df0
[   27.773177][  T304] R13: 000055557ef017e0 R14: 431bde82d7b634db R15: 00007fff2a187e10
[   27.781236][  T304]  </TASK>
[   27.784275][  T304] ---[ end trace d91646fca5776509 ]---
[   27.789968][  T304] ==================================================================
[   27.798058][  T304] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   27.804307][  T304] Write of size 4 at addr 0000000000000170 by task syz-executor445/304
[   27.812537][  T304] 
[   27.814861][  T304] CPU: 1 PID: 304 Comm: syz-executor445 Tainted: G        W         syzkaller #0
[   27.823962][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   27.834013][  T304] Call Trace:
[   27.837292][  T304]  <TASK>
[   27.840221][  T304]  __dump_stack+0x21/0x30
[   27.844550][  T304]  dump_stack_lvl+0x110/0x170
[   27.849225][  T304]  ? show_regs_print_info+0x20/0x20
[   27.854435][  T304]  ? _raw_spin_lock+0x94/0xf0
[   27.859108][  T304]  ? _raw_spin_trylock_bh+0x150/0x150
[   27.864483][  T304]  ? ihold+0x20/0x60
[   27.868373][  T304]  kasan_report+0xcc/0x150
[   27.872886][  T304]  ? ihold+0x20/0x60
[   27.876779][  T304]  kasan_check_range+0x249/0x2a0
[   27.881717][  T304]  __kasan_check_write+0x14/0x20
[   27.886656][  T304]  ihold+0x20/0x60
[   27.890371][  T304]  vfs_rmdir+0x23d/0x450
[   27.894627][  T304]  incfs_kill_sb+0xfe/0x210
[   27.899155][  T304]  deactivate_locked_super+0xa0/0x100
[   27.904548][  T304]  deactivate_super+0xaf/0xe0
[   27.909224][  T304]  cleanup_mnt+0x44f/0x500
[   27.913641][  T304]  __cleanup_mnt+0x19/0x20
[   27.918075][  T304]  task_work_run+0x127/0x190
[   27.922665][  T304]  ptrace_notify+0x230/0x270
[   27.927255][  T304]  ? do_notify_parent+0x830/0x830
[   27.932275][  T304]  ? user_path_at_empty+0x162/0x1c0
[   27.937474][  T304]  ? __x64_sys_umount+0x12d/0x170
[   27.942496][  T304]  ? path_umount+0xfa0/0xfa0
[   27.947085][  T304]  syscall_exit_work+0x87/0x160
[   27.951954][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   27.958108][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   27.963489][  T304]  do_syscall_64+0x58/0xa0
[   27.967908][  T304]  ? clear_bhb_loop+0x50/0xa0
[   27.972584][  T304]  ? clear_bhb_loop+0x50/0xa0
[   27.977271][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   27.983164][  T304] RIP: 0033:0x7f9ddb2ad6a7
[   27.987596][  T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 e4 03 09 00 00 00 00 00 eb 96 e8 d1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
[   28.007226][  T304] RSP: 002b:00007fff2a186cc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   28.015641][  T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9ddb2ad6a7
[   28.023637][  T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2a186d80
[   28.031617][  T304] RBP: 00007fff2a186d80 R08: 00007fff2a187d80 R09: 00000000ffffffff
[   28.039594][  T304] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2a187df0
[   28.047571][  T304] R13: 000055557ef017e0 R14: 431bde82d7b634db R15: 00007fff2a187e10
[   28.055631][  T304]  </TASK>
[   28.058655][  T304] ==================================================================
[   28.066759][  T304] Disabling lock debugging due to kernel taint
[   28.073060][  T304] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   28.080891][  T304] #PF: supervisor write access in kernel mode
[   28.086973][  T304] #PF: error_code(0x0002) - not-present page
[   28.092967][  T304] PGD 0 P4D 0 
[   28.096356][  T304] Oops: 0002 [#1] PREEMPT SMP KASAN
[   28.101566][  T304] CPU: 1 PID: 304 Comm: syz-executor445 Tainted: G    B   W         syzkaller #0
[   28.110710][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   28.120782][  T304] RIP: 0010:ihold+0x26/0x60
[   28.125304][  T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 91 8a b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 80 02 f2 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
[   28.144934][  T304] RSP: 0018:ffffc90000987c10 EFLAGS: 00010246
[   28.151032][  T304] RAX: ffff88810ad42700 RBX: 0000000000000000 RCX: ffff88810ad42780
[   28.159062][  T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   28.167047][  T304] RBP: ffffc90000987c20 R08: 0000000000000003 R09: 0000000000000004
[   28.175027][  T304] R10: dffffc0000000000 R11: fffffbfff0e18e4c R12: 1ffff110241d835a
[   28.183015][  T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   28.190992][  T304] FS:  000055557ef00480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   28.199937][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.206535][  T304] CR2: 0000000000000170 CR3: 000000012474a000 CR4: 00000000003506a0
[   28.214529][  T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.222523][  T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.230519][  T304] Call Trace:
[   28.233821][  T304]  <TASK>
[   28.236764][  T304]  vfs_rmdir+0x23d/0x450
[   28.241035][  T304]  incfs_kill_sb+0xfe/0x210
[   28.245567][  T304]  deactivate_locked_super+0xa0/0x100
[   28.250952][  T304]  deactivate_super+0xaf/0xe0
[   28.255644][  T304]  cleanup_mnt+0x44f/0x500
[   28.260075][  T304]  __cleanup_mnt+0x19/0x20
[   28.264512][  T304]  task_work_run+0x127/0x190
[   28.269127][  T304]  ptrace_notify+0x230/0x270
[   28.273755][  T304]  ? do_notify_parent+0x830/0x830
[   28.278805][  T304]  ? user_path_at_empty+0x162/0x1c0
[   28.284025][  T304]  ? __x64_sys_umount+0x12d/0x170
[   28.289071][  T304]  ? path_umount+0xfa0/0xfa0
[   28.293676][  T304]  syscall_exit_work+0x87/0x160
[   28.298543][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   28.304712][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   28.310114][  T304]  do_syscall_64+0x58/0xa0
[   28.314548][  T304]  ? clear_bhb_loop+0x50/0xa0
[   28.319239][  T304]  ? clear_bhb_loop+0x50/0xa0
[   28.323929][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   28.329989][  T304] RIP: 0033:0x7f9ddb2ad6a7
[   28.334437][  T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 e4 03 09 00 00 00 00 00 eb 96 e8 d1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8
[   28.354082][  T304] RSP: 002b:00007fff2a186cc8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   28.362552][  T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f9ddb2ad6a7
[   28.370541][  T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff2a186d80
[   28.378526][  T304] RBP: 00007fff2a186d80 R08: 00007fff2a187d80 R09: 00000000ffffffff
[   28.386601][  T304] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff2a187df0
[   28.394582][  T304] R13: 000055557ef017e0 R14: 431bde82d7b634db R15: 00007fff2a187e10
[   28.402576][  T304]  </TASK>
[   28.405626][  T304] Modules linked in:
[   28.409548][  T304] CR2: 0000000000000170
[   28.413730][  T304] ---[ end trace d91646fca577650a ]---
[   28.419195][  T304] RIP: 0010:ihold+0x26/0x60
[   28.423718][  T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 91 8a b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 80 02 f2 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
[   28.443338][  T304] RSP: 0018:ffffc90000987c10 EFLAGS: 00010246
[   28.449426][  T304] RAX: ffff88810ad42700 RBX: 0000000000000000 RCX: ffff88810ad42780
[   28.457420][  T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   28.465437][  T304] RBP: ffffc90000987c20 R08: 0000000000000003 R09: 0000000000000004
[   28.473426][  T304] R10: dffffc0000000000 R11: fffffbfff0e18e4c R12: 1ffff110241d835a
[   28.481428][  T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   28.489419][  T304] FS:  000055557ef00480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   28.498367][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.504991][  T304] CR2: 0000000000000170 CR3: 000000012474a000 CR4: 00000000003506a0
[   28.512980][  T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   28.520966][  T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   28.528954][  T304] Kernel panic - not syncing: Fatal exception
[   28.535324][  T304] Kernel Offset: disabled
[   28.539665][  T304] Rebooting in 86400 seconds..