CVE:CVE-2020-8649
CNNVD:CNNVD-202002-149
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 5.5.2版本中的drivers/video/console/vgacon.c文件的’vgacon_invert_region‘函数存在资料管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
solution:Upgrade linux linux_kernel to a higher version than 5.5.2,and avoid the version (,5.5.2]; Upgrade opensuse leap to a higher version than 15.1,and avoid the version 15.1; Upgrade debian debian_linux to a higher version than 8.0,9.0,and avoid the version 8.0,9.0