ci2-android-5-15/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-15/syz-executor1072680899

<...>
[   15.321687][   T30] audit: type=1400 audit(1788839492.589:62): avc:  denied  { rlimitinh } for  pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   15.325576][   T30] audit: type=1400 audit(1788839492.589:63): avc:  denied  { siginh } for  pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   17.736810][  T280] sshd-session (280) used greatest stack depth: 22184 bytes left
Warning: Permanently added '10.128.1.52' (ED25519) to the list of known hosts.
execve("ci2-android-5-15/syz-executor1072680899", ["ci2-android-5-15/syz-executor1072680899"], 0x7ffcd1c0c9e0 /* 10 vars */) = 0
brk(NULL)                               = 0x55557aed7000
brk(0x55557aed7d40)                     = 0x55557aed7d40
arch_prctl(ARCH_SET_FS, 0x55557aed73c0) = 0
set_tid_address(0x55557aed7690)         = 303
set_robust_list(0x55557aed76a0, 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-executor1072680899", 4096) = 45
getrandom("\xfd\x6d\x79\x56\x88\x8d\xbb\x35", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557aed7d40
brk(0x55557aef8d40)                     = 0x55557aef8d40
brk(0x55557aef9000)                     = 0x55557aef9000
mprotect(0x7f77c3d1c000, 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("\xec\xc0\x5c\x62\x30\x6b\x27\x77", 8, GRND_NONBLOCK) = 8
mkdir("./syzkaller.cVMI6n", 0700)       = 0
chmod("./syzkaller.cVMI6n", 0777)       = 0
chdir("./syzkaller.cVMI6n")             = 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=0x55557aed7690) = 304
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-5-15/strace-static-x86_64: Process 304 attached
[pid   304] set_robust_list(0x55557aed76a0, 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)        = 0
[pid   304] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 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
[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
[   24.536331][   T30] audit: type=1400 audit(1788839501.819:64): avc:  denied  { execmem } for  pid=303 comm="syz-executor107" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   24.556380][   T30] audit: type=1400 audit(1788839501.819:65): avc:  denied  { mounton } for  pid=304 comm="syz-executor107" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir 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] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   304] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557aed7690) = 2
[pid   304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
ci2-android-5-15/strace-static-x86_64: Process 305 attached
[pid   305] set_robust_list(0x55557aed76a0, 24) = 0
[pid   305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   305] chdir("./0")                = 0
[pid   305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   305] setpgid(0, 0)               = 0
[pid   305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   305] write(3, "1000", 4)         = 4
[pid   305] close(3)                    = 0
[pid   305] symlink("/dev/binderfs", "./binderfs") = 0
[pid   305] write(1, "executing program\n", 18) = 18
executing program
[pid   305] mkdir("./bus", 0436)        = 0
[   24.578831][   T30] audit: type=1400 audit(1788839501.849:66): avc:  denied  { mounton } for  pid=304 comm="syz-executor107" path="/root/syzkaller.cVMI6n/syz-tmp" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   24.579864][  T304] request_module fs-gadgetfs succeeded, but still no fs?
[   24.603673][   T30] audit: type=1400 audit(1788839501.849:67): avc:  denied  { mount } for  pid=304 comm="syz-executor107" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[pid   305] mount(".", "./bus", "incremental-fs", MS_NOSUID|MS_REC|MS_SILENT, NULL) = 0
[pid   305] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   305] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   305] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   305] exit_group(0)               = ?
[pid   305] +++ 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, 0x55557aed8750 /* 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, 0x55557aee0790 /* 2 entries */, 32768) = 48
[pid   304] getdents64(4, 0x55557aee0790 /* 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, 0x55557aee0790 /* 2 entries */, 32768) = 48
[pid   304] getdents64(4, 0x55557aee0790 /* 0 entries */, 32768) = 0
[pid   304] close(4)                    = 0
[pid   304] rmdir("./0/.index")         = 0
[   24.618229][  T305] incfs: ino conflict with backing FS 9
[   24.633230][   T30] audit: type=1400 audit(1788839501.849:68): avc:  denied  { mounton } for  pid=304 comm="syz-executor107" path="/root/syzkaller.cVMI6n/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
[   24.663389][  T304] ------------[ cut here ]------------
[   24.664375][   T30] audit: type=1400 audit(1788839501.849:69): avc:  denied  { mount } for  pid=304 comm="syz-executor107" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   24.668864][  T304] WARNING: CPU: 1 PID: 304 at fs/inode.c:335 drop_nlink+0xc5/0x110
[   24.668903][  T304] Modules linked in:
[   24.668921][  T304] CPU: 1 PID: 304 Comm: syz-executor107 Not tainted syzkaller #0
[   24.690851][   T30] audit: type=1400 audit(1788839501.849:70): avc:  denied  { mounton } for  pid=304 comm="syz-executor107" path="/root/syzkaller.cVMI6n/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
[   24.690877][   T30] audit: type=1400 audit(1788839501.849:71): avc:  denied  { mounton } for  pid=304 comm="syz-executor107" path="/root/syzkaller.cVMI6n/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=15103 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   24.690899][   T30] audit: type=1400 audit(1788839501.849:72): avc:  denied  { unmount } for  pid=304 comm="syz-executor107" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   24.690919][   T30] audit: type=1400 audit(1788839501.869:73): avc:  denied  { mounton } for  pid=304 comm="syz-executor107" path="/dev/gadgetfs" dev="devtmpfs" ino=556 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   24.807757][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   24.817847][  T304] RIP: 0010:drop_nlink+0xc5/0x110
[   24.823071][  T304] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 c3 0a f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0b 96 b2 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c
[   24.842710][  T304] RSP: 0018:ffffc900009b7bd0 EFLAGS: 00010293
[   24.848768][  T304] RAX: ffffffff81b72575 RBX: ffff8881209d4068 RCX: ffff888124c0e2c0
[   24.856762][  T304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   24.864799][  T304] RBP: ffffc900009b7bf8 R08: 0000000000000003 R09: 0000000000000004
[   24.872794][  T304] R10: dffffc0000000000 R11: fffff52000136f68 R12: dffffc0000000000
[   24.880796][  T304] R13: 1ffff1102413a816 R14: ffff8881209d40b0 R15: 0000000000000000
[   24.888757][  T304] FS:  000055557aed73c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   24.897690][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.904275][  T304] CR2: 000055557aee8798 CR3: 0000000126dc1000 CR4: 00000000003506a0
[   24.912247][  T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.920205][  T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.928182][  T304] Call Trace:
[   24.931462][  T304]  <TASK>
[   24.934380][  T304]  shmem_rmdir+0x5b/0x90
[   24.938599][  T304]  vfs_rmdir+0x1ae/0x450
[   24.942850][  T304]  incfs_kill_sb+0xfe/0x210
[   24.947342][  T304]  deactivate_locked_super+0xa0/0x100
[   24.952718][  T304]  deactivate_super+0xaf/0xe0
[   24.957386][  T304]  cleanup_mnt+0x44f/0x500
[   24.961804][  T304]  __cleanup_mnt+0x19/0x20
[   24.966215][  T304]  task_work_run+0x127/0x190
[   24.970813][  T304]  ptrace_notify+0x230/0x270
[   24.975393][  T304]  ? do_notify_parent+0x830/0x830
[   24.980393][  T304]  ? user_path_at_empty+0x162/0x1c0
[   24.985594][  T304]  ? __x64_sys_umount+0x12d/0x170
[   24.990640][  T304]  ? path_umount+0xfa0/0xfa0
[   24.995236][  T304]  syscall_exit_work+0x87/0x160
[   25.000078][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.006241][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   25.011620][  T304]  do_syscall_64+0x58/0xa0
[   25.016019][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.020677][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.025388][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.031284][  T304] RIP: 0033:0x7f77c3c89527
[   25.035711][  T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 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 d8 ff ff ff f7 d8 64 89 02 b8
[   25.055339][  T304] RSP: 002b:00007ffed3b1c1e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   25.063769][  T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f77c3c89527
[   25.071750][  T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed3b1c2a0
[   25.079713][  T304] RBP: 00007ffed3b1c2a0 R08: 00007ffed3b1d2a0 R09: 00000000ffffffff
[   25.087730][  T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed3b1d310
[   25.095724][  T304] R13: 000055557aed8720 R14: 00007ffed3b1d310 R15: 0000000000000001
[   25.103700][  T304]  </TASK>
[   25.106709][  T304] ---[ end trace ebfb57c552c319cd ]---
[   25.112660][  T304] ==================================================================
[   25.120712][  T304] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   25.126932][  T304] Write of size 4 at addr 0000000000000170 by task syz-executor107/304
[   25.135158][  T304] 
[   25.137470][  T304] CPU: 1 PID: 304 Comm: syz-executor107 Tainted: G        W         syzkaller #0
[   25.146561][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   25.156602][  T304] Call Trace:
[   25.159858][  T304]  <TASK>
[   25.162779][  T304]  __dump_stack+0x21/0x30
[   25.167105][  T304]  dump_stack_lvl+0x110/0x170
[   25.171768][  T304]  ? show_regs_print_info+0x20/0x20
[   25.176961][  T304]  ? _raw_spin_lock+0x94/0xf0
[   25.181610][  T304]  ? _raw_spin_trylock_bh+0x150/0x150
[   25.186976][  T304]  ? ihold+0x20/0x60
[   25.190850][  T304]  kasan_report+0xcc/0x150
[   25.195243][  T304]  ? ihold+0x20/0x60
[   25.199125][  T304]  kasan_check_range+0x249/0x2a0
[   25.204036][  T304]  __kasan_check_write+0x14/0x20
[   25.208958][  T304]  ihold+0x20/0x60
[   25.212651][  T304]  vfs_rmdir+0x23d/0x450
[   25.216869][  T304]  incfs_kill_sb+0xfe/0x210
[   25.221361][  T304]  deactivate_locked_super+0xa0/0x100
[   25.226709][  T304]  deactivate_super+0xaf/0xe0
[   25.231361][  T304]  cleanup_mnt+0x44f/0x500
[   25.235751][  T304]  __cleanup_mnt+0x19/0x20
[   25.240153][  T304]  task_work_run+0x127/0x190
[   25.244715][  T304]  ptrace_notify+0x230/0x270
[   25.249278][  T304]  ? do_notify_parent+0x830/0x830
[   25.254278][  T304]  ? user_path_at_empty+0x162/0x1c0
[   25.259478][  T304]  ? __x64_sys_umount+0x12d/0x170
[   25.264475][  T304]  ? path_umount+0xfa0/0xfa0
[   25.269041][  T304]  syscall_exit_work+0x87/0x160
[   25.273866][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.279999][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   25.285345][  T304]  do_syscall_64+0x58/0xa0
[   25.289747][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.294400][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.299046][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.304915][  T304] RIP: 0033:0x7f77c3c89527
[   25.309321][  T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 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 d8 ff ff ff f7 d8 64 89 02 b8
[   25.328936][  T304] RSP: 002b:00007ffed3b1c1e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   25.337346][  T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f77c3c89527
[   25.345313][  T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed3b1c2a0
[   25.353271][  T304] RBP: 00007ffed3b1c2a0 R08: 00007ffed3b1d2a0 R09: 00000000ffffffff
[   25.361228][  T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed3b1d310
[   25.369184][  T304] R13: 000055557aed8720 R14: 00007ffed3b1d310 R15: 0000000000000001
[   25.377146][  T304]  </TASK>
[   25.380146][  T304] ==================================================================
[   25.388180][  T304] Disabling lock debugging due to kernel taint
[   25.394394][  T304] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   25.402182][  T304] #PF: supervisor write access in kernel mode
[   25.408238][  T304] #PF: error_code(0x0002) - not-present page
[   25.414192][  T304] PGD 0 P4D 0 
[   25.417560][  T304] Oops: 0002 [#1] PREEMPT SMP KASAN
[   25.422735][  T304] CPU: 1 PID: 304 Comm: syz-executor107 Tainted: G    B   W         syzkaller #0
[   25.431819][  T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[   25.441944][  T304] RIP: 0010:ihold+0x26/0x60
[   25.446432][  T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 21 8e b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 b0 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 a1
[   25.466367][  T304] RSP: 0018:ffffc900009b7c10 EFLAGS: 00010246
[   25.472417][  T304] RAX: ffff888124c0e200 RBX: 0000000000000000 RCX: ffff888124c0e2c0
[   25.480371][  T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   25.488321][  T304] RBP: ffffc900009b7c20 R08: 0000000000000003 R09: 0000000000000004
[   25.496272][  T304] R10: dffffc0000000000 R11: fffffbfff0e18e4c R12: 1ffff1102254186c
[   25.504223][  T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   25.512177][  T304] FS:  000055557aed73c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.521094][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.527662][  T304] CR2: 0000000000000170 CR3: 0000000126dc1000 CR4: 00000000003506a0
[   25.535627][  T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.543687][  T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.551812][  T304] Call Trace:
[   25.555072][  T304]  <TASK>
[   25.557991][  T304]  vfs_rmdir+0x23d/0x450
[   25.562305][  T304]  incfs_kill_sb+0xfe/0x210
[   25.566790][  T304]  deactivate_locked_super+0xa0/0x100
[   25.574140][  T304]  deactivate_super+0xaf/0xe0
[   25.578805][  T304]  cleanup_mnt+0x44f/0x500
[   25.583203][  T304]  __cleanup_mnt+0x19/0x20
[   25.587598][  T304]  task_work_run+0x127/0x190
[   25.592167][  T304]  ptrace_notify+0x230/0x270
[   25.596737][  T304]  ? do_notify_parent+0x830/0x830
[   25.601746][  T304]  ? user_path_at_empty+0x162/0x1c0
[   25.606931][  T304]  ? __x64_sys_umount+0x12d/0x170
[   25.611968][  T304]  ? path_umount+0xfa0/0xfa0
[   25.616538][  T304]  syscall_exit_work+0x87/0x160
[   25.621367][  T304]  syscall_exit_to_user_mode_prepare+0x1c/0x20
[   25.627514][  T304]  syscall_exit_to_user_mode+0xd/0x30
[   25.632866][  T304]  do_syscall_64+0x58/0xa0
[   25.637275][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.641937][  T304]  ? clear_bhb_loop+0x50/0xa0
[   25.646593][  T304]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   25.652473][  T304] RIP: 0033:0x7f77c3c89527
[   25.656869][  T304] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 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 d8 ff ff ff f7 d8 64 89 02 b8
[   25.677065][  T304] RSP: 002b:00007ffed3b1c1e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   25.685460][  T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f77c3c89527
[   25.693408][  T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed3b1c2a0
[   25.701366][  T304] RBP: 00007ffed3b1c2a0 R08: 00007ffed3b1d2a0 R09: 00000000ffffffff
[   25.709339][  T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffed3b1d310
[   25.717302][  T304] R13: 000055557aed8720 R14: 00007ffed3b1d310 R15: 0000000000000001
[   25.725263][  T304]  </TASK>
[   25.728260][  T304] Modules linked in:
[   25.732147][  T304] CR2: 0000000000000170
[   25.736295][  T304] ---[ end trace ebfb57c552c319ce ]---
[   25.741734][  T304] RIP: 0010:ihold+0x26/0x60
[   25.746226][  T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 21 8e b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 b0 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 a1
[   25.765816][  T304] RSP: 0018:ffffc900009b7c10 EFLAGS: 00010246
[   25.771870][  T304] RAX: ffff888124c0e200 RBX: 0000000000000000 RCX: ffff888124c0e2c0
[   25.779823][  T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
[   25.787776][  T304] RBP: ffffc900009b7c20 R08: 0000000000000003 R09: 0000000000000004
[   25.795733][  T304] R10: dffffc0000000000 R11: fffffbfff0e18e4c R12: 1ffff1102254186c
[   25.803687][  T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
[   25.811641][  T304] FS:  000055557aed73c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.820674][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.827282][  T304] CR2: 0000000000000170 CR3: 0000000126dc1000 CR4: 00000000003506a0
[   25.835244][  T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.843207][  T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.851176][  T304] Kernel panic - not syncing: Fatal exception
[   25.857337][  T304] Kernel Offset: disabled
[   25.861643][  T304] Rebooting in 86400 seconds..