Bug 2373425 (CVE-2022-50079)

Summary: CVE-2022-50079 kernel: drm/amd/display: Check correct bounds for stream encoder instances for DCN303
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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:
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Description OSIDB Bzimport 2025-06-18 12:02:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Check correct bounds for stream encoder instances for DCN303

[Why & How]
eng_id for DCN303 cannot be more than 1, since we have only two
instances of stream encoders.

Check the correct boundary condition for engine ID for DCN303 prevent
the potential out of bounds access.
Comment 1 Avinash Hanwate 2025-06-20 09:19:03 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061856-CVE-2022-50079-b3a5@gregkh/T