Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
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。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 4.5之前版本的kernel/bpf/verifier.c文件中的‘adjust_branches’函数存在安全漏洞，该漏洞源于程序没有考虑backward-jump实例中的delta。本地攻击者可通过创建数据包过滤器并加载BPF指令，利用该漏洞获取内核内存中的敏感信息。
CVSS Information
N/A
Vulnerability Type
N/A