ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor295566005

<...>
Warning: Permanently added '10.128.1.140' (ED25519) to the list of known hosts.
execve("ci2-android-6-1/syz-executor295566005", ["ci2-android-6-1/syz-executor295566005"], 0x7ffe9cadeed0 /* 10 vars */) = 0
brk(NULL)                               = 0x55557380b000
brk(0x55557380be00)                     = 0x55557380be00
arch_prctl(ARCH_SET_FS, 0x55557380b480) = 0
set_tid_address(0x55557380b750)         = 305
set_robust_list(0x55557380b760, 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-executor295566005", 4096) = 43
getrandom("\xa5\x58\x0a\x12\x1c\x2f\x44\x2f", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557380be00
brk(0x55557382ce00)                     = 0x55557382ce00
brk(0x55557382d000)                     = 0x55557382d000
mprotect(0x7f963ec71000, 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=0x7f963ebc8eb0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f963ebcc550}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f963ebc8eb0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f963ebcc550}, NULL, 8) = 0
getrandom("\x90\x85\xb8\x6d\xa9\xe2\x0c\xfe", 8, GRND_NONBLOCK) = 8
getrandom("\x40\x13\xc5\x19\xfa\x1f\x3f\xd8", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.G8AUMa", 0700)       = 0
chmod("./syzkaller.G8AUMa", 0777)       = 0
chdir("./syzkaller.G8AUMa")             = 0
unshare(CLONE_NEWPID)                   = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8)   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-android-6-1/strace-static-x86_64: Process 306 attached
, child_tidptr=0x55557380b750) = 306
[pid   306] set_robust_list(0x55557380b760, 24) = 0
[pid   306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   305] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid   306] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   305] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid   306] <... prctl resumed>)        = 0
[pid   306] getppid()                   = 0
[pid   306] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   306] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   306] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   306] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   306] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   306] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   306] unshare(CLONE_NEWNS)        = 0
[pid   306] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   306] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   306] unshare(CLONE_NEWCGROUP)    = 0
[pid   306] unshare(CLONE_NEWUTS)       = 0
[pid   306] unshare(CLONE_SYSVSEM)      = 0
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   306] getpid()                    = 1
[pid   306] 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   306] 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   306] unshare(CLONE_NEWNET)       = 0
[pid   306] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   306] write(3, "0 65535", 7)      = 7
[pid   306] close(3)                    = 0
[pid   306] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   306] write(3, "100000", 6)       = 6
[pid   306] close(3)                    = 0
[pid   306] mkdir("./syz-tmp", 0777)    = 0
[   25.474917][   T28] audit: type=1400 audit(1786019069.749:64): avc:  denied  { execmem } for  pid=305 comm="syz-executor295" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   25.496465][   T28] audit: type=1400 audit(1786019069.769:65): avc:  denied  { mounton } for  pid=306 comm="syz-executor295" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   306] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   306] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   306] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   306] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   306] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   306] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   306] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   306] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   306] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   306] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   306] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   306] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   306] 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   306] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   306] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid   306] 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   306] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   306] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   306] chdir("/")                  = 0
[pid   306] umount2("./pivot", MNT_DETACH) = 0
[pid   306] chroot("./newroot")         = 0
[pid   306] chdir("/")                  = 0
[pid   306] mkdir("/dev/gadgetfs", 0777) = 0
[   25.528141][   T28] audit: type=1400 audit(1786019069.809:66): avc:  denied  { mounton } for  pid=306 comm="syz-executor295" path="/root/syzkaller.G8AUMa/syz-tmp" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   25.552603][   T28] audit: type=1400 audit(1786019069.809:67): avc:  denied  { mount } for  pid=306 comm="syz-executor295" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   306] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = -1 ENODEV (No such device)
[pid   306] mkdir("/dev/binderfs", 0777) = 0
[pid   306] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   306] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   306] mkdir("./0", 0777)          = 0
[pid   306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   306] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   306] close(3)                    = 0
[pid   306] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   306] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557380b750) = 2
[pid   306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-6-1/strace-static-x86_64: Process 307 attached
[pid   307] set_robust_list(0x55557380b760, 24) = 0
[pid   307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   307] chdir("./0")                = 0
[pid   307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   307] setpgid(0, 0)               = 0
[pid   307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   307] write(3, "1000", 4)         = 4
[pid   307] close(3)                    = 0
[pid   307] symlink("/dev/binderfs", "./binderfs") = 0
executing program
[pid   307] write(1, "executing program\n", 18) = 18
[pid   307] mkdir("./bus", 0777)        = 0
[pid   307] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid   307] mount(".", "./bus", "incremental-fs", MS_NOSUID|MS_REC|MS_I_VERSION|MS_STRICTATIME, NULL) = 0
[pid   307] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   307] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   307] close(5)                    = -1 EBADF (Bad file descriptor)
[   25.560119][  T306] request_module fs-gadgetfs succeeded, but still no fs?
[   25.575457][   T28] audit: type=1400 audit(1786019069.809:68): avc:  denied  { mounton } for  pid=306 comm="syz-executor295" path="/root/syzkaller.G8AUMa/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
[   25.612151][  T307] incfs: ino conflict with backing FS 9
[pid   307] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   307] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   307] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   307] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   307] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   307] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   307] exit_group(0)               = ?
[pid   307] +++ exited with 0 +++
[pid   306] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   306] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0
[pid   306] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   306] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   306] fstat(3, {st_mode=S_IFDIR|0700, st_size=120, ...}) = 0
[pid   306] getdents64(3, 0x55557380c810 /* 6 entries */, 32768) = 168
[pid   306] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   306] newfstatat(AT_FDCWD, "./0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   306] umount2("./0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   306] openat(AT_FDCWD, "./0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   306] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   306] getdents64(4, 0x555573814850 /* 2 entries */, 32768) = 48
[pid   306] getdents64(4, 0x555573814850 /* 0 entries */, 32768) = 0
[pid   306] close(4)                    = 0
[pid   306] rmdir("./0/.incomplete")    = 0
[pid   306] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   306] newfstatat(AT_FDCWD, "./0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   306] umount2("./0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   306] openat(AT_FDCWD, "./0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   306] fstat(4, {st_mode=S_IFDIR|0700, st_size=40, ...}) = 0
[pid   306] getdents64(4, 0x555573814850 /* 2 entries */, 32768) = 48
[pid   306] getdents64(4, 0x555573814850 /* 0 entries */, 32768) = 0
[pid   306] close(4)                    = 0
[pid   306] rmdir("./0/.index")         = 0
[   25.612500][   T28] audit: type=1400 audit(1786019069.809:69): avc:  denied  { mount } for  pid=306 comm="syz-executor295" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   25.641338][   T28] audit: type=1400 audit(1786019069.809:70): avc:  denied  { mounton } for  pid=306 comm="syz-executor295" path="/root/syzkaller.G8AUMa/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
[   25.668330][   T28] audit: type=1400 audit(1786019069.819:71): avc:  denied  { mounton } for  pid=306 comm="syz-executor295" path="/root/syzkaller.G8AUMa/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=15582 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   25.696174][  T306] ------------[ cut here ]------------
[   25.696175][   T28] audit: type=1400 audit(1786019069.819:72): avc:  denied  { unmount } for  pid=306 comm="syz-executor295" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   25.701693][  T306] WARNING: CPU: 0 PID: 306 at fs/inode.c:335 drop_nlink+0xc5/0x110
[   25.722033][   T28] audit: type=1400 audit(1786019069.839:73): avc:  denied  { mounton } for  pid=306 comm="syz-executor295" path="/dev/gadgetfs" dev="devtmpfs" ino=570 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   25.729605][  T306] Modules linked in:
[   25.756158][  T306] CPU: 0 PID: 306 Comm: syz-executor295 Not tainted syzkaller #0
[   25.763962][  T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   25.774085][  T306] RIP: 0010:drop_nlink+0xc5/0x110
[   25.779201][  T306] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 c3 b4 f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 5b 27 ab ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   25.798870][  T306] RSP: 0018:ffffc90000e77b60 EFLAGS: 00010293
[   25.804990][  T306] RAX: ffffffff81c63ee5 RBX: ffff8881100d4810 RCX: ffff88810fa1d100
[   25.813077][  T306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   25.821197][  T306] RBP: ffffc90000e77b88 R08: 0000000000000003 R09: 0000000000000004
[   25.829223][  T306] R10: dffffc0000000000 R11: fffff520001cef5c R12: dffffc0000000000
[   25.837252][  T306] R13: 1ffff1102201a90b R14: ffff8881100d4858 R15: 0000000000000000
[   25.845331][  T306] FS:  000055557380b480(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   25.854393][  T306] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.861011][  T306] CR2: 00005566473f3620 CR3: 0000000122550000 CR4: 00000000003506b0
[   25.869022][  T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.877130][  T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.885114][  T306] Call Trace:
[   25.888436][  T306]  <TASK>
[   25.891389][  T306]  shmem_rmdir+0x5b/0x90
[   25.895641][  T306]  vfs_rmdir+0x381/0x4f0
[   25.899943][  T306]  incfs_kill_sb+0xfe/0x210
[   25.904476][  T306]  deactivate_locked_super+0xb5/0x120
[   25.909916][  T306]  deactivate_super+0xaf/0xe0
[   25.914633][  T306]  cleanup_mnt+0x45e/0x4e0
[   25.919105][  T306]  __cleanup_mnt+0x19/0x20
[   25.923549][  T306]  task_work_run+0x1e1/0x250
[   25.928197][  T306]  ? __cfi_task_work_run+0x10/0x10
[   25.933339][  T306]  ? path_umount+0x345/0xf60
[   25.937982][  T306]  ? __kasan_slab_free+0x11/0x20
[   25.942964][  T306]  ptrace_notify+0x23f/0x270
[   25.947612][  T306]  ? __cfi_path_umount+0x10/0x10
[   25.952579][  T306]  ? __cfi_ptrace_notify+0x10/0x10
[   25.957780][  T306]  ? user_path_at_empty+0x162/0x1c0
[   25.963015][  T306]  ? __x64_sys_umount+0x12d/0x170
[   25.968104][  T306]  ? __cfi___x64_sys_umount+0x10/0x10
[   25.973512][  T306]  ? fpregs_restore_userregs+0x128/0x260
[   25.979193][  T306]  syscall_exit_work+0x84/0x140
[   25.984069][  T306]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.990272][  T306]  syscall_exit_to_user_mode+0xd/0x30
[   25.995682][  T306]  do_syscall_64+0x58/0xa0
[   26.000150][  T306]  ? clear_bhb_loop+0x30/0x80
[   26.004861][  T306]  ? clear_bhb_loop+0x30/0x80
[   26.009581][  T306]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.015535][  T306] RIP: 0033:0x7f963ebe6667
[   26.020024][  T306] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 24 04 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
[   26.039689][  T306] RSP: 002b:00007ffca155bc58 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.048163][  T306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f963ebe6667
[   26.056157][  T306] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca155bd10
[   26.064204][  T306] RBP: 00007ffca155bd10 R08: 00007ffca155cd10 R09: 00000000ffffffff
[   26.072241][  T306] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffca155cd80
[   26.080293][  T306] R13: 000055557380c7e0 R14: 431bde82d7b634db R15: 00007ffca155cda0
[   26.088325][  T306]  </TASK>
[   26.091353][  T306] ---[ end trace 0000000000000000 ]---
[   26.096973][  T306] ==================================================================
[   26.105067][  T306] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   26.111402][  T306] Write of size 4 at addr 0000000000000170 by task syz-executor295/306
[   26.119723][  T306] 
[   26.122048][  T306] CPU: 0 PID: 306 Comm: syz-executor295 Tainted: G        W          syzkaller #0
[   26.131258][  T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   26.141320][  T306] Call Trace:
[   26.144598][  T306]  <TASK>
[   26.147528][  T306]  __dump_stack+0x21/0x24
[   26.151863][  T306]  dump_stack_lvl+0x110/0x170
[   26.156560][  T306]  ? __cfi_dump_stack_lvl+0x8/0x8
[   26.161623][  T306]  ? __cfi_call_rcu+0x10/0x10
[   26.166305][  T306]  ? ihold+0x20/0x60
[   26.170394][  T306]  ? ihold+0x20/0x60
[   26.174291][  T306]  print_report+0x3d/0x60
[   26.178621][  T306]  kasan_report+0x122/0x150
[   26.183131][  T306]  ? ihold+0x20/0x60
[   26.187032][  T306]  kasan_check_range+0x249/0x2a0
[   26.191977][  T306]  __kasan_check_write+0x14/0x20
[   26.196937][  T306]  ihold+0x20/0x60
[   26.200673][  T306]  vfs_rmdir+0x24c/0x4f0
[   26.204932][  T306]  incfs_kill_sb+0xfe/0x210
[   26.209449][  T306]  deactivate_locked_super+0xb5/0x120
[   26.214834][  T306]  deactivate_super+0xaf/0xe0
[   26.219518][  T306]  cleanup_mnt+0x45e/0x4e0
[   26.223935][  T306]  __cleanup_mnt+0x19/0x20
[   26.228439][  T306]  task_work_run+0x1e1/0x250
[   26.233041][  T306]  ? __cfi_task_work_run+0x10/0x10
[   26.238171][  T306]  ? path_umount+0x345/0xf60
[   26.242766][  T306]  ? __kasan_slab_free+0x11/0x20
[   26.247711][  T306]  ptrace_notify+0x23f/0x270
[   26.252308][  T306]  ? __cfi_path_umount+0x10/0x10
[   26.257272][  T306]  ? __cfi_ptrace_notify+0x10/0x10
[   26.262389][  T306]  ? user_path_at_empty+0x162/0x1c0
[   26.267610][  T306]  ? __x64_sys_umount+0x12d/0x170
[   26.272659][  T306]  ? __cfi___x64_sys_umount+0x10/0x10
[   26.278042][  T306]  ? fpregs_restore_userregs+0x128/0x260
[   26.283697][  T306]  syscall_exit_work+0x84/0x140
[   26.288573][  T306]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   26.294727][  T306]  syscall_exit_to_user_mode+0xd/0x30
[   26.300099][  T306]  do_syscall_64+0x58/0xa0
[   26.304536][  T306]  ? clear_bhb_loop+0x30/0x80
[   26.309222][  T306]  ? clear_bhb_loop+0x30/0x80
[   26.313921][  T306]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.319824][  T306] RIP: 0033:0x7f963ebe6667
[   26.324253][  T306] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 24 04 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
[   26.343983][  T306] RSP: 002b:00007ffca155bc58 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.352420][  T306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f963ebe6667
[   26.360391][  T306] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca155bd10
[   26.368362][  T306] RBP: 00007ffca155bd10 R08: 00007ffca155cd10 R09: 00000000ffffffff
[   26.376332][  T306] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffca155cd80
[   26.384298][  T306] R13: 000055557380c7e0 R14: 431bde82d7b634db R15: 00007ffca155cda0
[   26.392281][  T306]  </TASK>
[   26.395324][  T306] ==================================================================
[   26.403494][  T306] Disabling lock debugging due to kernel taint
[   26.409882][  T306] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   26.417785][  T306] #PF: supervisor write access in kernel mode
[   26.423871][  T306] #PF: error_code(0x0002) - not-present page
[   26.429946][  T306] PGD 0 P4D 0 
[   26.433343][  T306] Oops: 0002 [#1] PREEMPT SMP KASAN
[   26.438554][  T306] CPU: 0 PID: 306 Comm: syz-executor295 Tainted: G    B   W          syzkaller #0
[   26.448287][  T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   26.458359][  T306] RIP: 0010:ihold+0x26/0x60
[   26.462894][  T306] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 c1 1e ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 00 ac 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 b1
[   26.482949][  T306] RSP: 0018:ffffc90000e77ba0 EFLAGS: 00010246
[   26.489323][  T306] RAX: ffff88810fa1d100 RBX: 0000000000000000 RCX: ffff88810fa1d100
[   26.497316][  T306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.505318][  T306] RBP: ffffc90000e77bb0 R08: ffffffff87b757e7 R09: 1ffffffff0f6eafc
[   26.513303][  T306] R10: dffffc0000000000 R11: fffffbfff0f6eafd R12: ffff8881100d481c
[   26.521288][  T306] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   26.529275][  T306] FS:  000055557380b480(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   26.538474][  T306] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.545073][  T306] CR2: 0000000000000170 CR3: 0000000122550000 CR4: 00000000003506b0
[   26.553060][  T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.561053][  T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.569040][  T306] Call Trace:
[   26.572332][  T306]  <TASK>
[   26.575279][  T306]  vfs_rmdir+0x24c/0x4f0
[   26.579552][  T306]  incfs_kill_sb+0xfe/0x210
[   26.584076][  T306]  deactivate_locked_super+0xb5/0x120
[   26.589467][  T306]  deactivate_super+0xaf/0xe0
[   26.594265][  T306]  cleanup_mnt+0x45e/0x4e0
[   26.598702][  T306]  __cleanup_mnt+0x19/0x20
[   26.603133][  T306]  task_work_run+0x1e1/0x250
[   26.607737][  T306]  ? __cfi_task_work_run+0x10/0x10
[   26.612862][  T306]  ? path_umount+0x345/0xf60
[   26.617485][  T306]  ? __kasan_slab_free+0x11/0x20
[   26.622440][  T306]  ptrace_notify+0x23f/0x270
[   26.627050][  T306]  ? __cfi_path_umount+0x10/0x10
[   26.632004][  T306]  ? __cfi_ptrace_notify+0x10/0x10
[   26.637134][  T306]  ? user_path_at_empty+0x162/0x1c0
[   26.642349][  T306]  ? __x64_sys_umount+0x12d/0x170
[   26.647394][  T306]  ? __cfi___x64_sys_umount+0x10/0x10
[   26.652782][  T306]  ? fpregs_restore_userregs+0x128/0x260
[   26.658431][  T306]  syscall_exit_work+0x84/0x140
[   26.663296][  T306]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   26.669465][  T306]  syscall_exit_to_user_mode+0xd/0x30
[   26.674853][  T306]  do_syscall_64+0x58/0xa0
[   26.679291][  T306]  ? clear_bhb_loop+0x30/0x80
[   26.684417][  T306]  ? clear_bhb_loop+0x30/0x80
[   26.689103][  T306]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   26.695021][  T306] RIP: 0033:0x7f963ebe6667
[   26.699448][  T306] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 24 04 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
[   26.719061][  T306] RSP: 002b:00007ffca155bc58 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[   26.727488][  T306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f963ebe6667
[   26.735470][  T306] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca155bd10
[   26.743476][  T306] RBP: 00007ffca155bd10 R08: 00007ffca155cd10 R09: 00000000ffffffff
[   26.751480][  T306] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffca155cd80
[   26.759463][  T306] R13: 000055557380c7e0 R14: 431bde82d7b634db R15: 00007ffca155cda0
[   26.767454][  T306]  </TASK>
[   26.770484][  T306] Modules linked in:
[   26.774403][  T306] CR2: 0000000000000170
[   26.778565][  T306] ---[ end trace 0000000000000000 ]---
[   26.784027][  T306] RIP: 0010:ihold+0x26/0x60
[   26.788554][  T306] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 c1 1e ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 00 ac 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 b1
[   26.808165][  T306] RSP: 0018:ffffc90000e77ba0 EFLAGS: 00010246
[   26.814239][  T306] RAX: ffff88810fa1d100 RBX: 0000000000000000 RCX: ffff88810fa1d100
[   26.822214][  T306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   26.830201][  T306] RBP: ffffc90000e77bb0 R08: ffffffff87b757e7 R09: 1ffffffff0f6eafc
[   26.838187][  T306] R10: dffffc0000000000 R11: fffffbfff0f6eafd R12: ffff8881100d481c
[   26.846172][  T306] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   26.854154][  T306] FS:  000055557380b480(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   26.863097][  T306] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.869691][  T306] CR2: 0000000000000170 CR3: 0000000122550000 CR4: 00000000003506b0
[   26.877675][  T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.885657][  T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.893641][  T306] Kernel panic - not syncing: Fatal exception
[   26.900264][  T306] Kernel Offset: disabled
[   26.904586][  T306] Rebooting in 86400 seconds..