iavf：在 iavf_disable_vf 中的队列之前释放 q_vectors (CVE-2021-47201)

CVE编号

CVE-2021-47201

利用情况

暂无

补丁情况

N/A

披露时间

2024-04-11

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: iavf: free q_vectors before queues in iavf_disable_vf iavf_free_queues() clears adapter->num_active_queues, which iavf_free_q_vectors() relies on, so swap the order of these two function calls in iavf_disable_vf(). This resolves a panic encountered when the interface is disabled and then later brought up again after PF communication is restored.

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/78638b47132244e3934dc5dc79f6372d5ce8e98c
https://git.kernel.org/stable/c/89f22f129696ab53cfbc608e0a2184d0fea46ac1
https://git.kernel.org/stable/c/926e8c83d4c1c2dac0026637eb0d492df876489e
https://git.kernel.org/stable/c/9ef6589cac9a8c47f5544ccdf4c498093733bb3f

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	系统	debian_11	linux	*		Up to (excluding) 5.10.84-1
	运行在以下环境
	系统	debian_12	linux	*		Up to (excluding) 5.15.5-1

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