• 公告ID (KylinSec-SA-2024-2551)

摘要:

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

swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC

Limit the free list length to the size of the IO TLB. Transient pool can be
smaller than IO_TLB_SEGSIZE, but the free list is initialized with the
assumption that the total number of slots is a multiple of IO_TLB_SEGSIZE.
As a result, swiotlb_area_find_slots() may allocate slots past the end of
a transient IO TLB buffer.

安全等级: Low

公告ID: KylinSec-SA-2024-2551

发布日期: 2024年6月2日

关联CVE: CVE-2023-52790  

  • 详细介绍

1. 漏洞描述

   

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

swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC

Limit the free list length to the size of the IO TLB. Transient pool can be
smaller than IO_TLB_SEGSIZE, but the free list is initialized with the
assumption that the total number of slots is a multiple of IO_TLB_SEGSIZE.
As a result, swiotlb_area_find_slots() may allocate slots past the end of
a transient IO TLB buffer.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2023-52790 KY3.4-4A kernel Unaffected
CVE-2023-52790 KY3.4-5A kernel Unaffected
CVE-2023-52790 KY3.5.1 kernel Unaffected
CVE-2023-52790 KY3.5.2 kernel Unaffected
CVE-2023-52790 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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