CVE:CVE-2020-25639
CNNVD:CNNVD-202101-1299
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 存在代码问题漏洞，攻击者可利用该漏洞可以通过DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC 强制空指针解引用，从而触发拒绝服务。
solution:Upgrade linux linux_kernel to a higher version than 5.11.2,and avoid the version (,5.11.2]; Upgrade fedoraproject fedora to a higher version than 32,33,and avoid the version 32,33; Upgrade redhat openshift_container_platform to a higher version than 4.4,4.5,4.6,and avoid the version 4.4,4.5,4.6; 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 messaging_realtime_grid to a higher version than 2.0,and avoid the version 2.0