• 公告ID (KylinSec-SA-2024-2091)

摘要:

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

drm/amdkfd: fix a potential ttm->sg memory leak

Memory is allocated for ttm->sg by kmalloc in kfd_mem_dmamap_userptr,
but isn't freed by kfree in kfd_mem_dmaunmap_userptr. Free it!

安全等级: Low

公告ID: KylinSec-SA-2024-2091

发布日期: 2024年5月27日

关联CVE: CVE-2021-47420  

  • 详细介绍

1. 漏洞描述

   

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

drm/amdkfd: fix a potential ttm->sg memory leak

Memory is allocated for ttm->sg by kmalloc in kfd_mem_dmamap_userptr,
but isn't freed by kfree in kfd_mem_dmaunmap_userptr. Free it!

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2021-47420 KY3.4-4A kernel Unaffected
CVE-2021-47420 KY3.4-5 kernel Unaffected
CVE-2021-47420 KY3.5.1 kernel Unaffected
CVE-2021-47420 KY3.5.3 kernel Unaffected
CVE-2021-47420 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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