• 公告ID (KylinSec-SA-2024-2640)

摘要:

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

bpf: Check bloom filter map value size

This patch adds a missing check to bloom filter creating, rejecting
values above KMALLOC_MAX_SIZE. This brings the bloom map in line with
many other map types.

The lack of this protection can cause kernel crashes for value sizes
that overflow int's. Such a crash was caught by syzkaller. The next
patch adds more guard-rails at a lower level.

安全等级: Low

公告ID: KylinSec-SA-2024-2640

发布日期: 2024年6月6日

关联CVE: CVE-2024-36918  

  • 详细介绍

1. 漏洞描述

   

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

bpf: Check bloom filter map value size

This patch adds a missing check to bloom filter creating, rejecting
values above KMALLOC_MAX_SIZE. This brings the bloom map in line with
many other map types.

The lack of this protection can cause kernel crashes for value sizes
that overflow int's. Such a crash was caught by syzkaller. The next
patch adds more guard-rails at a lower level.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2024-36918 KY3.4-5A kernel Unaffected
CVE-2024-36918 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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