i2c：smbus：修复 NULL 函数指针取消引用（CVE-2024-35984）

CVE编号

CVE-2024-35984

利用情况

暂无

补丁情况

N/A

披露时间

2024-05-20

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: i2c: smbus: fix NULL function pointer dereference Baruch reported an OOPS when using the designware controller as target only. Target-only modes break the assumption of one transfer function always being available. Fix this by always checking the pointer in __i2c_transfer. [wsa: dropped the simplification in core-smbus to avoid theoretical regressions]

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/357c64ef1ef39b1e7cd91ab6bdd304d043702c83
https://git.kernel.org/stable/c/40f1d79f07b49c8a64a861706e5163f2db4bd95d
https://git.kernel.org/stable/c/4e75e222d397c6752b229ed72fc4644c8c36ecde
https://git.kernel.org/stable/c/5a09eae9a7db597fe0c1fc91636205b4a25d2620
https://git.kernel.org/stable/c/5fd72404587d7db4acb2d241fd8c387afb0a7aec
https://git.kernel.org/stable/c/91811a31b68d3765b3065f4bb6d7d6d84a7cfc9f
https://git.kernel.org/stable/c/ad3c3ac7a03be3697114f781193dd3e9d97e6e23
https://git.kernel.org/stable/c/e3425674ff68dc521c57c6eabad0cbd20a027d85

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) 5.10.216-1
	运行在以下环境
	系统	debian_12	linux	*		Up to (excluding) 6.1.90-1

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