• 公告ID (KylinSec-SA-2024-3189)

摘要:

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

dma-buf: heaps: Fix potential spectre v1 gadget

It appears like nr could be a Spectre v1 gadget as it's supplied by a
user and used as an array index. Prevent the contents
of kernel memory from being leaked to userspace via speculative
execution by using array_index_nospec.

[sumits: added fixes and cc: stable tags]

安全等级: Low

公告ID: KylinSec-SA-2024-3189

发布日期: 2024年7月17日

关联CVE: CVE-2022-48730  

  • 详细介绍

1. 漏洞描述

   

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

dma-buf: heaps: Fix potential spectre v1 gadget

It appears like nr could be a Spectre v1 gadget as it's supplied by a
user and used as an array index. Prevent the contents
of kernel memory from being leaked to userspace via speculative
execution by using array_index_nospec.

[sumits: added fixes and cc: stable tags]

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2022-48730 KY3.4-5A kernel Unaffected
CVE-2022-48730 KY3.5.2 kernel Unaffected
CVE-2022-48730 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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