Bug 2419927 (CVE-2023-53753)

Summary: CVE-2023-53753 kernel: drm/amd/display: fix mapping to non-allocated address
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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An out-of-bounds array access was found in the AMD display driver in the Linux kernel. The driver allocates GPIO registers using incorrect bounds, leading to access of non-allocated memory addresses. This could cause kernel memory corruption or crashes during display initialization.
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Description OSIDB Bzimport 2025-12-08 07:09:25 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: fix mapping to non-allocated address

[Why]
There is an issue mapping non-allocated location of memory.
It would allocate gpio registers from an array out of bounds.

[How]
Patch correct numbers of bounds for using.
Comment 1 Jon Moroney 2025-12-08 19:01:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120843-CVE-2023-53753-1a11@gregkh/T