ssb：修复 ssb_device_uevent() 中潜在的 NULL 指针取消引用（CVE-2024-40982）

CVE编号

CVE-2024-40982

利用情况

暂无

补丁情况

N/A

披露时间

2024-07-12

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: ssb: Fix potential NULL pointer dereference in ssb_device_uevent() The ssb_device_uevent() function first attempts to convert the 'dev' pointer to 'struct ssb_device *'. However, it mistakenly dereferences 'dev' before performing the NULL check, potentially leading to a NULL pointer dereference if 'dev' is NULL. To fix this issue, move the NULL check before dereferencing the 'dev' pointer, ensuring that the pointer is valid before attempting to use it. Found by Linux Verification Center (linuxtesting.org) with SVACE.

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/789c17185fb0f39560496c2beab9b57ce1d0cbe7
https://git.kernel.org/stable/c/7d43c8377c6fc846b1812f8df360425c9323dc56
https://git.kernel.org/stable/c/c5dc2d8eb3981bae261ea7d1060a80868e886813

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