CVE:CVE-2020-12826
CNNVD:CNNVD-202005-685
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。
Linux kernel 5.6.5之前版本（CID-7395ea4e65c2）中的include / linux / sched.h文件中的exec_id变量存在安全漏洞。攻击者可利用该漏洞绕过‘do_notify_parent’函数的保护机制。
solution:Upgrade linux linux_kernel to a higher version than 5.6.5,and avoid the version (,5.6.5); Upgrade canonical ubuntu_linux to a higher version than 20.04,and avoid the version 20.04; Upgrade redhat enterprise_linux to a higher version than 5.0,6.0,7.0,8.0,and avoid the version 5.0,6.0,7.0,8.0; Upgrade redhat enterprise_mrg to a higher version than 2.0,and avoid the version 2.0