• 公告ID (KylinSec-SA-2024-2032)

摘要:

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

drm/amdgpu: once more fix the call oder in amdgpu_ttm_move() v2

This reverts drm/amdgpu: fix ftrace event amdgpu_bo_move always move
on same heap. The basic problem here is that after the move the old
location is simply not available any more.

Some fixes were suggested, but essentially we should call the move
notification before actually moving things because only this way we have
the correct order for DMA-buf and VM move notifications as well.

Also rework the statistic handling so that we don't update the eviction
counter before the move.

v2: add missing NULL check

安全等级: Low

公告ID: KylinSec-SA-2024-2032

发布日期: 2024年5月27日

关联CVE: CVE-2024-27400  

  • 详细介绍

1. 漏洞描述

   

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

drm/amdgpu: once more fix the call oder in amdgpu_ttm_move() v2

This reverts drm/amdgpu: fix ftrace event amdgpu_bo_move always move
on same heap. The basic problem here is that after the move the old
location is simply not available any more.

Some fixes were suggested, but essentially we should call the move
notification before actually moving things because only this way we have
the correct order for DMA-buf and VM move notifications as well.

Also rework the statistic handling so that we don't update the eviction
counter before the move.

v2: add missing NULL check

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2024-27400 KY3.4-4A kernel Unaffected
CVE-2024-27400 KY3.4-5 kernel Unaffected
CVE-2024-27400 KY3.5.1 kernel Unaffected
CVE-2024-27400 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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