• 公告ID (KylinSec-SA-2024-2026)

摘要:

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

drm/amd/display: fix incorrect mpc_combine array size

[why]
MAX_SURFACES is per stream, while MAX_PLANES is per asic. The
mpc_combine is an array that records all the planes per asic. Therefore
MAX_PLANES should be used as the array size. Using MAX_SURFACES causes
array overflow when there are more than 3 planes.

[how]
Use the MAX_PLANES for the mpc_combine array size.

安全等级: Low

公告ID: KylinSec-SA-2024-2026

发布日期: 2024年5月27日

关联CVE: CVE-2024-26914  

  • 详细介绍

1. 漏洞描述

   

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

drm/amd/display: fix incorrect mpc_combine array size

[why]
MAX_SURFACES is per stream, while MAX_PLANES is per asic. The
mpc_combine is an array that records all the planes per asic. Therefore
MAX_PLANES should be used as the array size. Using MAX_SURFACES causes
array overflow when there are more than 3 planes.

[how]
Use the MAX_PLANES for the mpc_combine array size.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2024-26914 KY3.4-4A kernel Unaffected
CVE-2024-26914 KY3.4-5 kernel Unaffected
CVE-2024-26914 KY3.5.1 kernel Unaffected
CVE-2024-26914 V6 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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