CVE-2024-49907 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/amd/display: Check null pointers before using dc->clk_mgr

[WHY & HOW] dc->clk_mgr is null checked previously in the same function indicating it might be null.

Passing \dc\ to \dc->hwss.apply_idle_power_optimizations\ which dereferences null \dc->clk_mgr. (The function pointer resolves to \dcn35_apply_idle_power_optimizations.)

This fixes 1 FORWARD_NULL issue reported by Coverity.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://git.kernel.org/stable/c/8d54001f8dccd56146973f23f3ab2ba037a21251 https://git.kernel.org/stable/c/a545a9403e04c6e17fdc04a26a61d9feebbba106 https://git.kernel.org/stable/c/a2773e0a4b79e7a6463abdffaf8cc4f24428ba18 https://git.kernel.org/stable/c/9641bc4adf8446034e490ed543ae7e9833cfbdf5 https://git.kernel.org/stable/c/3f7e533c10db3d0158709a99e2129ff63add6bcd https://git.kernel.org/stable/c/5ba3fbf75b243b2863a8be9e7c393e003d3b88f3 https://git.kernel.org/stable/c/95d9e0803e51d5a24276b7643b244c7477daf463

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5