hwmon：（ibmpex）修复 ibmpex_register_bmc() 失败时可能出现的 UAF（CVE-2022-49029）

CVE编号

CVE-2022-49029

利用情况

暂无

补丁情况

N/A

披露时间

2024-10-22

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails Smatch report warning as follows: drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn: '&data->list' not removed from list If ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will be freed, but data->list will not be removed from driver_data.bmc_data, then list traversal may cause UAF. Fix by removeing it from driver_data.bmc_data before free().

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/24b9633f7db7f4809be7053df1d2e117e7c2de10
https://git.kernel.org/stable/c/45f6e81863747c0d7bc6a95ec51129900e71467a
https://git.kernel.org/stable/c/798198273bf86673b970b51acdb35e57f42b3fcb
https://git.kernel.org/stable/c/7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3
https://git.kernel.org/stable/c/90907cd4d11351ff76c9a447bcb5db0e264c47cd
https://git.kernel.org/stable/c/e2a87785aab0dac190ac89be6a9ba955e2c634f2
https://git.kernel.org/stable/c/e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863
https://git.kernel.org/stable/c/f2a13196ad41c6c2ab058279dffe6c97292e753a

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) 5.10.158-1
	运行在以下环境
	系统	debian_12	linux	*		Up to (excluding) 6.0.12-1

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