• 公告ID (KylinSec-SA-2024-2511)

摘要:

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

virtio-net: fix pages leaking when building skb in big mode

We try to use build_skb() if we had sufficient tailroom. But we forget
to release the unused pages chained via private in big mode which will
leak pages. Fixing this by release the pages after building the skb in
big mode.

安全等级: Low

公告ID: KylinSec-SA-2024-2511

发布日期: 2024年5月31日

关联CVE: CVE-2021-47367  

  • 详细介绍

1. 漏洞描述

   

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

virtio-net: fix pages leaking when building skb in big mode

We try to use build_skb() if we had sufficient tailroom. But we forget
to release the unused pages chained via private in big mode which will
leak pages. Fixing this by release the pages after building the skb in
big mode.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2021-47367 KY3.4-4A kernel Unaffected
CVE-2021-47367 KY3.4-5A kernel Unaffected
CVE-2021-47367 KY3.5.1 kernel Unaffected
CVE-2021-47367 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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