net: caif：修复 caif_device_notify 中的内存泄漏 (CVE-2021-47122)

CVE编号

CVE-2021-47122

利用情况

暂无

补丁情况

N/A

披露时间

2024-03-16

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: net: caif: fix memory leak in caif_device_notify In case of caif_enroll_dev() fail, allocated link_support won't be assigned to the corresponding structure. So simply free allocated pointer in case of error

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/3be863c11cab725add9fef4237ed4e232c3fc3bb
https://git.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455d
https://git.kernel.org/stable/c/6a0e317f61094d377335547e015dd2ff12caf893
https://git.kernel.org/stable/c/9348c1f10932f13b299cbc8b1bd5f780751fae49
https://git.kernel.org/stable/c/af2806345a37313f01b1c9f15e046745b8ee2daa
https://git.kernel.org/stable/c/b042e2b2039565eb8f0eb51c14fbe1ef463c8cd8
https://git.kernel.org/stable/c/b53558a950a89824938e9811eddfc8efcd94e1bb
https://git.kernel.org/stable/c/f52f4fd67264c70cd0b4ba326962ebe12d9cba94

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_10	linux	*		Up to (excluding) 4.19.194-1
	运行在以下环境
	系统	debian_11	linux	*		Up to (excluding) 5.10.46-1
	运行在以下环境
	系统	debian_12	linux	*		Up to (excluding) 5.10.46-1

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