Bug 2312102 (CVE-2024-46705)

Summary: CVE-2024-46705 kernel: drm/xe: reset mmio mappings with devm
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Bug Depends On: 2312170    
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Description OSIDB Bzimport 2024-09-13 07:20:53 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/xe: reset mmio mappings with devm

Set our various mmio mappings to NULL. This should make it easier to
catch something rogue trying to mess with mmio after device removal. For
example, we might unmap everything and then start hitting some mmio
address which has already been unmamped by us and then remapped by
something else, causing all kinds of carnage.
Comment 1 Michal Findra 2024-09-13 11:03:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091330-CVE-2024-46705-b9c0@gregkh/T