CVE:CVE-2018-10323
CNNVD:CNNVD-201804-1406
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 4.16.3及之前版本中的fs/xfs/libxfs/xfs_bmap.c文件的‘xfs_bmap_extents_to_btree’函数存在安全漏洞。本地攻击者可借助特制的xfs图像利用该漏洞造成拒绝服务（‘xfs_bmapi_write’函数空指针逆向引用）。
solution:Upgrade linux linux_kernel to a higher version than 4.16.3,and avoid the version (,4.16.3]; Upgrade canonical ubuntu_linux to a higher version than 14.04,16.04,18.04,and avoid the version 14.04,16.04,18.04; Upgrade debian debian_linux to a higher version than 9.0,and avoid the version 9.0