runc selinux library  use 100% cpu

### Description

see https://github.com/opencontainers/selinux/issues/247

### Steps to reproduce the issue

see  https://github.com/opencontainers/selinux/issues/247

### Describe the results you received and expected

runc library use less cpu.

### What version of runc are you using?

any

### Host OS information

any linux 

### Host kernel information

_No response_