CVE:CVE-2022-4129
CNNVD:CNNVD-202211-3581
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。
Linux kernel存在安全漏洞，该漏洞源于其Layer 2 Tunneling Protocol（L2TP）清除sk_user_data时缺少锁会导致竞争条件和NULL指针解引用允许本地用户使系统崩溃导致拒绝服务。
solution:Upgrade linux layer_2_tunneling_protocol to a higher version than 6.0,and avoid the version (,6.0); Upgrade fedoraproject fedora to a higher version than 35,36,37,and avoid the version 35,36,37