CVE-2026-80576: drm/amdgpu: reject oversized IBs with per-ring packet limits

mediumCVSS 6.1CVE-2026-80576

CSIRTS triage

vendor: Linux product: Linux kernel Denial of service

What: AMD GPU driver fails to reject oversized indirect buffers, bypassing per-ring packet limits.
Who is affected: Systems with AMD GPUs running affected Linux kernel versions.
Urgency: Medium priority; unpatched systems can be subjected to denial of service via oversized IB submission.
Action: Update to Linux kernel version with amdgpu IB size validation applied.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 6.1
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80576

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-805760.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-80576	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

highCVE-2026-80576: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: reject oversiz…nvd

Recent advisories for drm/amdgpu

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-80576: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: reject oversiz…nvd · 2026-08-26
highCVE-2026-80541: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate GEM_C…nvd · 2026-08-26
highCVE-2026-80540: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix UVD decode…nvd · 2026-08-26
unknownCVE-2026-80539: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: disallow multi…nvd · 2026-08-26
highCVE-2026-74357: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix KASAN slab…nvd · 2026-08-15
mediumCVE-2026-68245: drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()msrc · 2026-08-11