Bug 2301461 (CVE-2023-52888)

Summary: CVE-2023-52888 kernel: media: mediatek: vcodec: Only free buffer VA that is not NULL
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: kernel 6.6.39, kernel 6.9.9, kernel 6.10 Doc Type: If docs needed, set a value
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2301654    
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Description OSIDB Bzimport 2024-07-30 08:20:13 UTC 
In the Linux kernel, the following vulnerability has been resolved:

media: mediatek: vcodec: Only free buffer VA that is not NULL

In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly
called only when the buffer to free exists, there are some instances
that didn't do the check and triggered warnings in practice.

We believe those checks were forgotten unintentionally. Add the checks
back to fix the warnings.
Comment 1 Mauro Matteo Cascella 2024-07-30 14:52:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024073015-CVE-2023-52888-51c6@gregkh/T
Comment 2 Mauro Matteo Cascella 2024-07-30 14:53:16 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2301654]