Bug 2330352 (CVE-2024-53137)

Summary: CVE-2024-53137 kernel: ARM: fix cacheflush with PAN
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: 2330491    
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Description OSIDB Bzimport 2024-12-04 15:02:13 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ARM: fix cacheflush with PAN

It seems that the cacheflush syscall got broken when PAN for LPAE was
implemented. User access was not enabled around the cache maintenance
instructions, causing them to fault.
Comment 1 Avinash Hanwate 2024-12-05 04:08:12 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024120452-CVE-2024-53137-b908@gregkh/T