CVE-2026-43195 drm/amdgpu: validate user queue size constraints

What is CVE-2026-43195?

CVE-2026-43195 is a medium-severity denial of service vulnerability in Linux kernel, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: validate user queue size constraints

Add validation to ensure user queue sizes meet hardware requirements: - Size must be a power of two for efficient ring buffer wrapping - Size must be at least AMDGPU_GPU_PAGE_SIZE to prevent undersized allocations

This prevents invalid configurations that could lead to GPU faults or unexpected behavior.

Which versions are affected by CVE-2026-43195?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43195?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-43195 being exploited?

There is no known exploitation of CVE-2026-43195 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-85899, BELL-CVE-2026-43195, DEBIAN-CVE-2026-43195, GHSA-7ghh-wj4j-cfv3, ROOT-OS-DEBIAN-11-CVE-2026-43195, ROOT-OS-DEBIAN-12-CVE-2026-43195 and 4 more.