Bug 2315164 (CVE-2024-46813)

Summary: CVE-2024-46813 kernel: drm/amd/display: Check link_index before accessing dc->links[]
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2315305    
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Description OSIDB Bzimport 2024-09-27 13:21:11 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Check link_index before accessing dc->links[]

[WHY & HOW]
dc->links[] has max size of MAX_LINKS and NULL is return when trying to
access with out-of-bound index.

This fixes 3 OVERRUN and 1 RESOURCE_LEAK issues reported by Coverity.
Comment 1 Robb Gatica 2024-09-27 15:33:35 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024092711-CVE-2024-46813-5eb9@gregkh/T