CentOS 7.X版本专用
升级命令： rpm -Uvh polkit-0.112-26.el7_9.1.x86_64.rpm
参考链接：
https://ubuntu.com/security/CVE-2021-4034
https://access.redhat.com/security/cve/CVE-2021-4034
https://security-tracker.debian.org/tracker/CVE-2021-4034
https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt
