• 公告ID (KylinSec-SA-2024-3311)

摘要:

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix verifier assumptions about socket->sk

The verifier assumes that 'sk' field in 'struct socket' is valid
and non-NULL when 'socket' pointer itself is trusted and non-NULL.
That may not be the case when socket was just created and
passed to LSM socket_accept hook.
Fix this verifier assumption and adjust tests.

安全等级: Low

公告ID: KylinSec-SA-2024-3311

发布日期: 2024年8月20日

关联CVE: CVE-2024-38566  

  • 详细介绍

1. 漏洞描述

   

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix verifier assumptions about socket->sk

The verifier assumes that 'sk' field in 'struct socket' is valid
and non-NULL when 'socket' pointer itself is trusted and non-NULL.
That may not be the case when socket was just created and
passed to LSM socket_accept hook.
Fix this verifier assumption and adjust tests.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2024-38566 KY3.4-5A kernel Unaffected
CVE-2024-38566 KY3.5.2 kernel Unaffected

3. 影响组件

    无

4. 修复版本

    无

5. 修复方法

   无

6. 下载链接

    无
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