net: caif：修复 cfusbl_device_notify 中的内存泄漏 (CVE-2021-47121)

CVE编号

CVE-2021-47121

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 cfusbl_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/46403c1f80b0d3f937ff9c4f5edc63bb64bc5051
https://git.kernel.org/stable/c/4d94f530cd24c85aede6e72b8923f371b45d6886
https://git.kernel.org/stable/c/7f5d86669fa4d485523ddb1d212e0a2d90bd62bb
https://git.kernel.org/stable/c/81afc61cb6e2b553f2c5f992fa79e0ae73857141
https://git.kernel.org/stable/c/9ea0ab48e755d8f29fe89eb235fb86176fdb597f
https://git.kernel.org/stable/c/cc302e30a504e6b60a9ac8df7988646f46cd0294
https://git.kernel.org/stable/c/dde8686985ec24d6b00487080a906609bd613ea1
https://git.kernel.org/stable/c/e8b37f5009ea7095529790f022859711e6939c76

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