CVE-2026-80540
Received Received - Intake

AMDGPU UVD Decode Image Size Calculation Fix

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix UVD decode image min size calculation This needs to use pitch instead of width. Also reject pitch over 4096 to avoid overflow. (cherry picked from commit b41c8cb12e202b220353332ab87dc01a11f69304)

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Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-08-26
AI Q&A
2026-08-26
EPSS Evaluated
N/A
NVD
CVE-2026-80540
EUVD
EUVD-2026-66455

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves incorrect calculation of the minimum size for UVD (Unified Video Decoder) decode images in the AMDGPU driver. It requires using pitch instead of width for this calculation and rejects pitch values over 4096 to prevent overflow issues.

Detection Guidance

This vulnerability is specific to the Linux kernel's AMDGPU driver and relates to UVD decode image size calculation. Detection requires checking kernel logs for AMDGPU-related errors or examining driver code for the affected function. No standard network detection commands apply.

Impact Analysis

This vulnerability could lead to system instability or crashes when processing video decode operations, potentially causing denial of service or unexpected behavior in applications relying on AMDGPU for video decoding.

Mitigation Strategies

Apply the latest kernel update from your Linux distribution to include the fix for this AMDGPU driver issue. Monitor kernel logs for AMDGPU-related errors after updating.

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