CVE-2024-49907

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

State: Published
Severity: Not scored
Published: Oct 21, 2024
Updated: May 11, 2026
Reserved: Oct 21, 2024

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 8d54001f8dccd56146973f23f3ab2ba037a21251Affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before a545a9403e04c6e17fdc04a26a61d9feebbba106Affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before a2773e0a4b79e7a6463abdffaf8cc4f24428ba18Affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 9641bc4adf8446034e490ed543ae7e9833cfbdf5Affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 3f7e533c10db3d0158709a99e2129ff63add6bcdAffected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 5ba3fbf75b243b2863a8be9e7c393e003d3b88f3Affected 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 95d9e0803e51d5a24276b7643b244c7477daf463Affected
LinuxLinux	4.15Affected before 4.15Not affected 5.10.227 through 5.10.Not affected 5.15.168 through 5.15.Not affected 6.1.113 through 6.1.Not affected 6.6.55 through 6.6.Not affected 6.10.14 through 6.10.Not affected 6.11.3 through 6.11.Not affected 6.12 and laterNot affected

Product

Versions

LinuxLinux

4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 8d54001f8dccd56146973f23f3ab2ba037a21251Affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before a545a9403e04c6e17fdc04a26a61d9feebbba106Affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before a2773e0a4b79e7a6463abdffaf8cc4f24428ba18Affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 9641bc4adf8446034e490ed543ae7e9833cfbdf5Affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 3f7e533c10db3d0158709a99e2129ff63add6bcdAffected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 5ba3fbf75b243b2863a8be9e7c393e003d3b88f3Affected
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c to before 95d9e0803e51d5a24276b7643b244c7477daf463Affected

LinuxLinux

4.15Affected
before 4.15Not affected
5.10.227 through 5.10.*Not affected
5.15.168 through 5.15.*Not affected
6.1.113 through 6.1.*Not affected
6.6.55 through 6.6.*Not affected
6.10.14 through 6.10.*Not affected
6.11.3 through 6.11.*Not affected
6.12 and laterNot affected

References

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