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CVE-2022-2639 PoC — Linux kernel 数字错误漏洞

Source
https://github.com/Threekiii/Awesome-POC/blob/master/%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E6%BC%8F%E6%B4%9E/Linux%20openvswitch%20%E6%9D%83%E9%99%90%E6%8F%90%E5%8D%87%E6%BC%8F%E6%B4%9E%20CVE-2022-2639.md
Associated Vulnerability
Title:Linux kernel 数字错误漏洞 (CVE-2022-2639)
Description: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存在数字错误漏洞，该漏洞源于在 openvswitch 内核模块中发现整数强制错误。 给定足够多的操作，在为新流的新操作复制和保留内存时，reserve_sfa_size() 函数不会按预期返回 -EMSGSIZE，这可能会导致越界写入访问。 此漏洞允许本地用户崩溃或可能提升他们在系统上的权限。
File Snapshot

 # Linux openvswitch 权限提升漏洞 CVE-2022-2639

## 漏洞描述

由于 openvswitch 模块在处理大量actions的情况下，可能存在越界写入漏洞，本地经过

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