Bug 2320739 (CVE-2022-48979)

Summary:	CVE-2022-48979 kernel: drm/amd/display: fix array index out of bound error in DCN32 DML
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2024-10-21 21:06:08 UTC

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

drm/amd/display: fix array index out of bound error in DCN32 DML

[Why&How]
LinkCapacitySupport array is indexed with the number of voltage states and
not the number of max DPPs. Fix the error by changing the array
declaration to use the correct (larger) array size of total number of
voltage states.

Comment 1 Avinash Hanwate 2024-10-22 06:05:47 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102146-CVE-2022-48979-d40f@gregkh/T