Bug 2492798 (CVE-2026-53203)

Summary: CVE-2026-53203 kernel: accel/ivpu: Add buffer overflow check in MS get_info_ioctl
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's `accel/ivpu` component. This vulnerability, a buffer overflow, occurs when the firmware returns a size larger than the allocated buffer during a metric stream information query. This can lead to an incorrect buffer copy, potentially causing system instability or denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-06-25 10:06:19 UTC 
In the Linux kernel, the following vulnerability has been resolved:

accel/ivpu: Add buffer overflow check in MS get_info_ioctl

Add validation that the info size returned from the metric stream info
query is not exceeded when checked against the allocated buffer size.
If the firmware returns a size larger than the buffer, reject the
operation with -EOVERFLOW instead of proceeding with an incorrect
buffer copy.
Comment 1 Keith Grant 2026-06-26 00:37:34 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062501-CVE-2026-53203-2c14@gregkh/T