• 公告ID (KylinSec-SA-2024-4595)

摘要:

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

io_uring: fix ltout double free on completion race

Always remove linked timeout on io_link_timeout_fn() from the master
request link list, otherwise we may get use-after-free when first
io_link_timeout_fn() puts linked timeout in the fail path, and then
will be found and put on master's free.

安全等级: Low

公告ID: KylinSec-SA-2024-4595

发布日期: 2024年5月11日

关联CVE: CVE-2021-47123  

  • 详细介绍

1. 漏洞描述

   

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

io_uring: fix ltout double free on completion race

Always remove linked timeout on io_link_timeout_fn() from the master
request link list, otherwise we may get use-after-free when first
io_link_timeout_fn() puts linked timeout in the fail path, and then
will be found and put on master's free.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2021-47123 KY3.4-5A kernel Unaffected
CVE-2021-47123 KY3.5.1 kernel Unaffected
CVE-2021-47123 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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