High [CVE-2026-80540] Fix UVD decode image min size calculation
This high-severity Red Hat Linux advisory covers CVE-2026-80540.
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Summary
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) A flaw was found in the Linux kernel's `drm/amdgpu` component, specifically within the Universal Video Decoder (UVD) image size calculation.
This vulnerability occurs because the minimum image size calculation incorrectly uses `width` instead of `pitch` and fails to reject `pitch` values exceeding 4096. An attacker could potentially exploit this integer overflow to cause a denial of service.
Red Hat severity: Moderate — CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-190.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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