CVE-2023-52671: drm/amd/display: Fix hang/underflow when transitioning to ODM4:1

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix hang/underflow when transitioning to ODM4:1

[Why]
Under some circumstances, disabling an OPTC and attempting to reclaim
its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs
not being properly disconnected from the disabled OPTC.

[How]
Ensure that all OPPs are unassigned from an OPTC when it gets disabled.

Classification

CVE ID: CVE-2023-52671

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.81% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/ae62f1dde66a6f0eee98defc4c7a346bd5acd239
https://git.kernel.org/stable/c/4b6b479b2da6badff099b2e3abf0248936eefbf5
https://git.kernel.org/stable/c/e7b2b108cdeab76a7e7324459e50b0c1214c0386

Timeline