Bug 2323917 (CVE-2024-50108)

Summary:	CVE-2024-50108 kernel: drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2324042
Bug Blocks:

Description OSIDB Bzimport 2024-11-05 18:02:09 UTC

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

drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too

Stuart Hayhurst has found that both at bootup and fullscreen VA-API video
is leading to black screens for around 1 second and kernel WARNING [1] traces
when calling dmub_psr_enable() with Parade 08-01 TCON.

These symptoms all go away with PSR-SU disabled for this TCON, so disable
it for now while DMUB traces [2] from the failure can be analyzed and the failure
state properly root caused.

(cherry picked from commit afb634a6823d8d9db23c5fb04f79c5549349628b)

Comment 1 Robb Gatica 2024-11-05 21:25:42 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024110554-CVE-2024-50108-e842@gregkh/T