drm/msm/dpu：将 dpu_encoder 的连接器分配移至 atomic_enable() （CVE-2024-45015）

CVE编号

CVE-2024-45015

利用情况

暂无

补丁情况

N/A

披露时间

2024-09-12

漏洞描述

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable() For cases where the crtc's connectors_changed was set without enable/active getting toggled , there is an atomic_enable() call followed by an atomic_disable() but without an atomic_mode_set(). This results in a NULL ptr access for the dpu_encoder_get_drm_fmt() call in the atomic_enable() as the dpu_encoder's connector was cleared in the atomic_disable() but not re-assigned as there was no atomic_mode_set() call. Fix the NULL ptr access by moving the assignment for atomic_enable() and also use drm_atomic_get_new_connector_for_encoder() to get the connector from the atomic_state. Patchwork: https://patchwork.freedesktop.org/patch/606729/

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/3bacf814b6a61cc683c68465f175ebd938f09c52
https://git.kernel.org/stable/c/3fb61718bcbe309279205d1cc275a6435611dc77
https://git.kernel.org/stable/c/aedf02e46eb549dac8db4821a6b9f0c6bf6e3990

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

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