dmaengine：altera-msgdma：msgdma_free_descriptor 中的正确释放描述符（CVE-2024-46716）

CVE编号

CVE-2024-46716

利用情况

暂无

补丁情况

N/A

披露时间

2024-09-18

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: dmaengine: altera-msgdma: properly free descriptor in msgdma_free_descriptor Remove list_del call in msgdma_chan_desc_cleanup, this should be the role of msgdma_free_descriptor. In consequence replace list_add_tail with list_move_tail in msgdma_free_descriptor. This fixes the path: msgdma_free_chan_resources -> msgdma_free_descriptors -> msgdma_free_desc_list -> msgdma_free_descriptor which does not correctly free the descriptors as first nodes were not removed from the list.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://git.kernel.org/stable/c/20bf2920a869f9dbda0ef8c94c87d1901a64a716
https://git.kernel.org/stable/c/54e4ada1a4206f878e345ae01cf37347d803d1b1
https://git.kernel.org/stable/c/a3480e59fdbe5585d2d1eff0bed7671583acf725
https://git.kernel.org/stable/c/db67686676c7becc1910bf1d6d51505876821863

CVSS3评分 N/A

• 攻击路径 N/A
• 攻击复杂度 N/A
• 权限要求 N/A
• 影响范围 N/A
• 用户交互 N/A
• 可用性 N/A
• 保密性 N/A
• 完整性 N/A

N/A

CWE-ID	漏洞类型

Exp相关链接

- avd.aliyun.com