CVE:CVE-2021-4159
CNNVD:CNNVD-202201-2660
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，具有向内核插入eBPF代码权限的本地攻击者可以利用该漏洞泄露内核内部内存详细信息。
solution:Upgrade linux linux_kernel to a higher version than 5.7,and avoid the version (,5.7); Upgrade redhat enterprise_linux to a higher version than 8.0,and avoid the version 8.0; Upgrade debian debian_linux to a higher version than 10.0,and avoid the version 10.0