./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor908277629

<...>
Warning: Permanently added '10.128.0.64' (ED25519) to the list of known hosts.
execve("./syz-executor908277629", ["./syz-executor908277629"], 0x7fff6b97f310 /* 10 vars */) = 0
brk(NULL)                               = 0x55556525f000
brk(0x55556525fd00)                     = 0x55556525fd00
arch_prctl(ARCH_SET_FS, 0x55556525f380) = 0
set_tid_address(0x55556525f650)         = 295
set_robust_list(0x55556525f660, 24)     = 0
rseq(0x55556525fca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor908277629", 4096) = 27
getrandom("\xe4\x2d\x22\xb4\x69\xf6\xc0\x93", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55556525fd00
brk(0x555565280d00)                     = 0x555565280d00
brk(0x555565281000)                     = 0x555565281000
mprotect(0x7fa62e222000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
mkdir("./syzkaller.vXPSaG", 0700)       = 0
chmod("./syzkaller.vXPSaG", 0777)       = 0
chdir("./syzkaller.vXPSaG")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556525f650) = 296
./strace-static-x86_64: Process 296 attached
[pid   296] set_robust_list(0x55556525f660, 24) = 0
[pid   296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   296] getppid()                   = 0
[pid   296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   296] unshare(CLONE_NEWNS)        = 0
[pid   296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   296] unshare(CLONE_NEWCGROUP)    = 0
[pid   296] unshare(CLONE_NEWUTS)       = 0
[pid   296] unshare(CLONE_SYSVSEM)      = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   296] getpid()                    = 1
[pid   296] 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   296] 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   296] unshare(CLONE_NEWNET)       = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "0 65535", 7)      = 7
[pid   296] close(3)                    = 0
[pid   296] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   296] write(3, "100000", 6)       = 6
[pid   296] close(3)                    = 0
[pid   296] mkdir("./syz-tmp", 0777)    = 0
[pid   296] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[   34.242963][   T24] audit: type=1400 audit(1730575387.950:66): avc:  denied  { execmem } for  pid=295 comm="syz-executor908" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   34.263271][   T24] audit: type=1400 audit(1730575387.980:67): avc:  denied  { mounton } for  pid=296 comm="syz-executor908" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   296] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   296] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   296] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   296] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   296] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   296] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   296] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] 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   296] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   296] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   296] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   296] chdir("/")                  = 0
[pid   296] umount2("./pivot", MNT_DETACH) = 0
[pid   296] chroot("./newroot")         = 0
[pid   296] chdir("/")                  = 0
[pid   296] mkdir("/dev/binderfs", 0777) = 0
[pid   296] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   296] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   296] mkdir("./0", 0777)          = 0
[pid   296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556525f650) = 2
[   34.310596][   T24] audit: type=1400 audit(1730575388.020:68): avc:  denied  { mounton } for  pid=296 comm="syz-executor908" path="/root/syzkaller.vXPSaG/syz-tmp" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   34.335568][   T24] audit: type=1400 audit(1730575388.020:69): avc:  denied  { mount } for  pid=296 comm="syz-executor908" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
executing program
./strace-static-x86_64: Process 297 attached
[pid   297] set_robust_list(0x55556525f660, 24) = 0
[pid   297] chdir("./0")                = 0
[pid   297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   297] setpgid(0, 0)               = 0
[pid   297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "1000", 4)         = 4
[pid   297] close(3)                    = 0
[pid   297] symlink("/dev/binderfs", "./binderfs") = 0
[pid   297] write(1, "executing program\n", 18) = 18
[pid   297] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   297] mkdir("./file0/file0", 000) = 0
[pid   297] mount("./file0", "./file0/../file0/file0", "incremental-fs", 0, NULL) = 0
[pid   297] close(3)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(4)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(5)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   297] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   297] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   297] exit_group(0)               = ?
[pid   297] +++ exited with 0 +++
[pid   296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   296] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   296] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid   296] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=80, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(3, 0x5555652606f0 /* 4 entries */, 32768) = 112
[pid   296] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|000, st_size=100, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
[pid   296] newfstatat(4, "", {st_mode=S_IFDIR|000, st_size=100, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(4, 0x555565268730 /* 5 entries */, 32768) = 144
[pid   296] umount2("./0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/file0/.incomplete", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0/.incomplete", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/file0/.incomplete", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   296] newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(5, 0x555565270770 /* 2 entries */, 32768) = 48
[pid   296] getdents64(5, 0x555565270770 /* 0 entries */, 32768) = 0
[pid   296] close(5)                    = 0
[pid   296] rmdir("./0/file0/.incomplete") = 0
[pid   296] umount2("./0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] newfstatat(AT_FDCWD, "./0/file0/.index", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_SYMLINK_NOFOLLOW) = 0
[pid   296] umount2("./0/file0/.index", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
[pid   296] openat(AT_FDCWD, "./0/file0/.index", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
[pid   296] newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=40, ...}, AT_EMPTY_PATH) = 0
[pid   296] getdents64(5, 0x555565270770 /* 2 entries */, 32768) = 48
[pid   296] getdents64(5, 0x555565270770 /* 0 entries */, 32768) = 0
[pid   296] close(5)                    = 0
[pid   296] rmdir("./0/file0/.index")   = 0
[   34.358222][   T24] audit: type=1400 audit(1730575388.020:70): avc:  denied  { mounton } for  pid=296 comm="syz-executor908" path="/root/syzkaller.vXPSaG/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
[   34.383837][   T24] audit: type=1400 audit(1730575388.020:71): avc:  denied  { mount } for  pid=296 comm="syz-executor908" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   34.406076][   T24] audit: type=1400 audit(1730575388.020:72): avc:  denied  { mounton } for  pid=296 comm="syz-executor908" path="/root/syzkaller.vXPSaG/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
[   34.406212][  T296] ------------[ cut here ]------------
[   34.432897][   T24] audit: type=1400 audit(1730575388.020:73): avc:  denied  { mounton } for  pid=296 comm="syz-executor908" path="/root/syzkaller.vXPSaG/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=14135 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   34.438371][  T296] WARNING: CPU: 1 PID: 296 at fs/inode.c:304 drop_nlink+0xc1/0x110
[   34.465579][   T24] audit: type=1400 audit(1730575388.020:74): avc:  denied  { unmount } for  pid=296 comm="syz-executor908" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   34.473436][  T296] Modules linked in:
[   34.492742][   T24] audit: type=1400 audit(1730575388.050:75): avc:  denied  { mounton } for  pid=296 comm="syz-executor908" path="/dev/binderfs" dev="devtmpfs" ino=509 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   34.493254][  T296] 
[   34.521335][  T296] CPU: 1 PID: 296 Comm: syz-executor908 Not tainted 5.10.226-syzkaller #0
[   34.529687][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   34.539595][  T296] RIP: 0010:drop_nlink+0xc1/0x110
[   34.544416][  T296] Code: 1e 48 8d bb b8 04 00 00 be 08 00 00 00 e8 a7 cc f0 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 af 30 b3 ff <0f> 0b eb 88 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c
[   34.563895][  T296] RSP: 0018:ffffc9000094fbe8 EFLAGS: 00010293
[   34.569778][  T296] RAX: ffffffff81b77c41 RBX: 0000000000000000 RCX: ffff88810d2662c0
[   34.577567][  T296] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   34.585436][  T296] RBP: ffffc9000094fc10 R08: ffffffff81b77bc4 R09: 0000000000000003
[   34.593245][  T296] R10: fffff52000129f6c R11: dffffc0000000001 R12: dffffc0000000000
[   34.601049][  T296] R13: 1ffff110230e5341 R14: ffff8881187299c0 R15: ffff888118729a08
[   34.608877][  T296] FS:  000055556525f380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   34.617587][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.624047][  T296] CR2: 0000555565278778 CR3: 000000010d2d0000 CR4: 00000000003506a0
[   34.631849][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.639671][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.647433][  T296] Call Trace:
[   34.650614][  T296]  ? show_regs+0x58/0x60
[   34.654653][  T296]  ? __warn+0x160/0x2f0
[   34.658685][  T296]  ? drop_nlink+0xc1/0x110
[   34.662904][  T296]  ? report_bug+0x3d9/0x5b0
[   34.667241][  T296]  ? drop_nlink+0xc1/0x110
[   34.671533][  T296]  ? handle_bug+0x41/0x70
[   34.675662][  T296]  ? exc_invalid_op+0x1b/0x50
[   34.680224][  T296]  ? asm_exc_invalid_op+0x12/0x20
[   34.685042][  T296]  ? drop_nlink+0x44/0x110
[   34.689338][  T296]  ? drop_nlink+0xc1/0x110
[   34.693640][  T296]  ? drop_nlink+0xc1/0x110
[   34.697892][  T296]  ? drop_nlink+0xc1/0x110
[   34.702200][  T296]  shmem_rmdir+0x59/0x90
[   34.706228][  T296]  vfs_rmdir+0x2b7/0x3f0
[   34.710337][  T296]  incfs_kill_sb+0x108/0x220
[   34.714742][  T296]  deactivate_locked_super+0xad/0x110
[   34.719983][  T296]  deactivate_super+0xbe/0xf0
[   34.724455][  T296]  cleanup_mnt+0x45c/0x510
[   34.728747][  T296]  __cleanup_mnt+0x19/0x20
[   34.732958][  T296]  task_work_run+0x129/0x190
[   34.737390][  T296]  ptrace_notify+0x29e/0x350
[   34.741862][  T296]  ? do_notify_parent+0xa10/0xa10
[   34.746676][  T296]  ? user_path_at_empty+0x40/0x50
[   34.751584][  T296]  ? __x64_sys_umount+0x122/0x170
[   34.756396][  T296]  ? path_umount+0xea0/0xea0
[   34.760875][  T296]  syscall_exit_to_user_mode+0xf5/0x1a0
[   34.766207][  T296]  do_syscall_64+0x40/0x70
[   34.770584][  T296]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   34.776335][  T296] RIP: 0033:0x7fa62e1afa07
[   34.780636][  T296] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   34.800061][  T296] RSP: 002b:00007ffe55bb89d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   34.808312][  T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa62e1afa07
[   34.816101][  T296] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe55bb8a90
[   34.823951][  T296] RBP: 00007ffe55bb8a90 R08: 0000000000000000 R09: 0000000000000000
[   34.831762][  T296] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe55bb9b80
[   34.839646][  T296] R13: 0000555565268700 R14: 00007ffe55bbabf0 R15: 0000000000000001
[   34.847458][  T296] ---[ end trace 65c5f5563019ce2c ]---
[   34.852949][  T296] ==================================================================
[   34.860854][  T296] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60
[   34.866919][  T296] Write of size 4 at addr 0000000000000170 by task syz-executor908/296
[   34.874976][  T296] 
[   34.877170][  T296] CPU: 1 PID: 296 Comm: syz-executor908 Tainted: G        W         5.10.226-syzkaller #0
[   34.886877][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   34.896768][  T296] Call Trace:
[   34.899913][  T296]  dump_stack_lvl+0x1e2/0x24b
[   34.904418][  T296]  ? panic+0x812/0x812
[   34.908327][  T296]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   34.913625][  T296]  ? _raw_spin_lock+0xa4/0x1b0
[   34.918243][  T296]  ? _raw_spin_trylock_bh+0x190/0x190
[   34.923436][  T296]  kasan_report+0x167/0x1c0
[   34.927772][  T296]  ? ihold+0x20/0x60
[   34.931510][  T296]  ? ihold+0x20/0x60
[   34.935236][  T296]  kasan_check_range+0x293/0x2a0
[   34.940013][  T296]  __kasan_check_write+0x14/0x20
[   34.944784][  T296]  ihold+0x20/0x60
[   34.948356][  T296]  vfs_rmdir+0x200/0x3f0
[   34.952422][  T296]  incfs_kill_sb+0x108/0x220
[   34.956853][  T296]  deactivate_locked_super+0xad/0x110
[   34.962062][  T296]  deactivate_super+0xbe/0xf0
[   34.966574][  T296]  cleanup_mnt+0x45c/0x510
[   34.970832][  T296]  __cleanup_mnt+0x19/0x20
[   34.975076][  T296]  task_work_run+0x129/0x190
[   34.979508][  T296]  ptrace_notify+0x29e/0x350
[   34.983933][  T296]  ? do_notify_parent+0xa10/0xa10
[   34.988792][  T296]  ? user_path_at_empty+0x40/0x50
[   34.993655][  T296]  ? __x64_sys_umount+0x122/0x170
[   34.998520][  T296]  ? path_umount+0xea0/0xea0
[   35.002945][  T296]  syscall_exit_to_user_mode+0xf5/0x1a0
[   35.008320][  T296]  do_syscall_64+0x40/0x70
[   35.012584][  T296]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   35.018299][  T296] RIP: 0033:0x7fa62e1afa07
[   35.022556][  T296] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   35.041998][  T296] RSP: 002b:00007ffe55bb89d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   35.050242][  T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa62e1afa07
[   35.058053][  T296] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe55bb8a90
[   35.065861][  T296] RBP: 00007ffe55bb8a90 R08: 0000000000000000 R09: 0000000000000000
[   35.073674][  T296] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe55bb9b80
[   35.081487][  T296] R13: 0000555565268700 R14: 00007ffe55bbabf0 R15: 0000000000000001
[   35.089300][  T296] ==================================================================
[   35.097188][  T296] Disabling lock debugging due to kernel taint
[   35.103348][  T296] BUG: kernel NULL pointer dereference, address: 0000000000000170
[   35.111012][  T296] #PF: supervisor write access in kernel mode
[   35.116935][  T296] #PF: error_code(0x0002) - not-present page
[   35.122743][  T296] PGD 0 P4D 0 
[   35.125959][  T296] Oops: 0002 [#1] PREEMPT SMP KASAN
[   35.131002][  T296] CPU: 1 PID: 296 Comm: syz-executor908 Tainted: G    B   W         5.10.226-syzkaller #0
[   35.140712][  T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   35.150627][  T296] RIP: 0010:ihold+0x25/0x60
[   35.154948][  T296] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 c1 28 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 90 c4 f0 ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 44 2c b3
[   35.174388][  T296] RSP: 0018:ffffc9000094fc28 EFLAGS: 00010246
[   35.180297][  T296] RAX: ffff88810d266200 RBX: 0000000000000001 RCX: ffff88810d2662c0
[   35.188119][  T296] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   35.195921][  T296] RBP: ffffc9000094fc38 R08: ffffffff813e2a7b R09: 0000000000000003
[   35.203735][  T296] R10: fffffbfff0e10c48 R11: dffffc0000000001 R12: dffffc0000000000
[   35.211546][  T296] R13: ffff888120ca9cc0 R14: 0000000000000000 R15: 0000000000000000
[   35.219360][  T296] FS:  000055556525f380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   35.228124][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.234544][  T296] CR2: 0000000000000170 CR3: 000000010d2d0000 CR4: 00000000003506a0
[   35.242361][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.250166][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   35.257971][  T296] Call Trace:
[   35.261145][  T296]  ? __die_body+0x62/0xb0
[   35.265277][  T296]  ? __die+0x7e/0x90
[   35.269012][  T296]  ? no_context+0x9f9/0xd20
[   35.273347][  T296]  ? sched_clock+0x3a/0x40
[   35.277605][  T296]  ? is_prefetch+0x5c0/0x5c0
[   35.282035][  T296]  ? __irq_exit_rcu+0x40/0x150
[   35.286636][  T296]  ? irq_exit_rcu+0x9/0x10
[   35.290891][  T296]  ? sysvec_apic_timer_interrupt+0xcb/0xe0
[   35.296528][  T296]  ? __bad_area_nosemaphore+0xc4/0x430
[   35.301838][  T296]  ? bad_area_nosemaphore+0x2d/0x40
[   35.306857][  T296]  ? exc_page_fault+0x3df/0x5b0
[   35.311560][  T296]  ? asm_exc_page_fault+0x1e/0x30
[   35.316404][  T296]  ? check_panic_on_warn+0x5b/0xb0
[   35.321350][  T296]  ? ihold+0x25/0x60
[   35.325083][  T296]  ? ihold+0x20/0x60
[   35.328820][  T296]  vfs_rmdir+0x200/0x3f0
[   35.332895][  T296]  incfs_kill_sb+0x108/0x220
[   35.337333][  T296]  deactivate_locked_super+0xad/0x110
[   35.342553][  T296]  deactivate_super+0xbe/0xf0
[   35.347049][  T296]  cleanup_mnt+0x45c/0x510
[   35.351305][  T296]  __cleanup_mnt+0x19/0x20
[   35.355550][  T296]  task_work_run+0x129/0x190
[   35.359980][  T296]  ptrace_notify+0x29e/0x350
[   35.364418][  T296]  ? do_notify_parent+0xa10/0xa10
[   35.369264][  T296]  ? user_path_at_empty+0x40/0x50
[   35.374130][  T296]  ? __x64_sys_umount+0x122/0x170
[   35.378997][  T296]  ? path_umount+0xea0/0xea0
[   35.383433][  T296]  syscall_exit_to_user_mode+0xf5/0x1a0
[   35.388806][  T296]  do_syscall_64+0x40/0x70
[   35.393057][  T296]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   35.398769][  T296] RIP: 0033:0x7fa62e1afa07
[   35.403032][  T296] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8
[   35.422470][  T296] RSP: 002b:00007ffe55bb89d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
[   35.430713][  T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa62e1afa07
[   35.438534][  T296] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe55bb8a90
[   35.446336][  T296] RBP: 00007ffe55bb8a90 R08: 0000000000000000 R09: 0000000000000000
[   35.454150][  T296] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffe55bb9b80
[   35.461960][  T296] R13: 0000555565268700 R14: 00007ffe55bbabf0 R15: 0000000000000001
[   35.469767][  T296] Modules linked in:
[   35.473530][  T296] CR2: 0000000000000170
[   35.477541][  T296] ---[ end trace 65c5f5563019ce2d ]---
[   35.482813][  T296] RIP: 0010:ihold+0x25/0x60
[   35.487133][  T296] Code: 00 00 00 00 00 55 48 89 e5 41 56 53 49 89 fe e8 c1 28 b3 ff 49 8d be 70 01 00 00 be 04 00 00 00 e8 90 c4 f0 ff bb 01 00 00 00 <f0> 41 0f c1 9e 70 01 00 00 ff c3 bf 02 00 00 00 89 de e8 44 2c b3
[   35.506582][  T296] RSP: 0018:ffffc9000094fc28 EFLAGS: 00010246
[   35.512496][  T296] RAX: ffff88810d266200 RBX: 0000000000000001 RCX: ffff88810d2662c0
[   35.520294][  T296] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 00000000ffffffff
[   35.528113][  T296] RBP: ffffc9000094fc38 R08: ffffffff813e2a7b R09: 0000000000000003
[   35.535922][  T296] R10: fffffbfff0e10c48 R11: dffffc0000000001 R12: dffffc0000000000
[   35.543731][  T296] R13: ffff888120ca9cc0 R14: 0000000000000000 R15: 0000000000000000
[   35.551541][  T296] FS:  000055556525f380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   35.560302][  T296] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.566722][  T296] CR2: 0000000000000170 CR3: 000000010d2d0000 CR4: 00000000003506a0
[   35.574537][  T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.582347][  T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   35.590158][  T296] Kernel panic - not syncing: Fatal exception
[   35.596276][  T296] Kernel Offset: disabled
[   35.600429][  T296] Rebooting in 86400 seconds..