Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image, because of a lack of block group item validation in check_leaf_item in fs/btrfs/tree-checker.c.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux kernel 安全漏洞
Vulnerability Description
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 4.17.10及之前版本中的‘io_ctl_map_page()’函数存在安全漏洞，该漏洞源于fs/btrfs/tree-checker.c文件的check_leaf_item没有检测区块族群（block group）条目。攻击者可利用该漏洞造成拒绝服务（逆向引用无效指针和崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A