Bug 2492796 (CVE-2026-53205)

Summary: CVE-2026-53205 kernel: accel/ivpu: Add bounds checks for firmware log indices
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's Intel Versatile Processing Unit (IVPU) accelerator driver. This vulnerability occurs due to insufficient validation of read and write indices in the firmware log buffer. If the firmware provides invalid log indices, it could lead to out-of-bounds buffer access. This issue could potentially allow an attacker to cause a denial of service or disclose sensitive information.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-06-25 10:06:13 UTC 
In the Linux kernel, the following vulnerability has been resolved:

accel/ivpu: Add bounds checks for firmware log indices

Add validation that read and write indices in the firmware log buffer
are within valid bounds (< data_size) before using them. If
out-of-bounds indices are encountered (from firmware), clamp them to
safe values instead of proceeding with invalid offsets.

This prevents potential out-of-bounds buffer access when firmware
supplies invalid log indices.
Comment 1 Keith Grant 2026-06-26 00:32:00 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062501-CVE-2026-53205-9438@gregkh/T