# CVE-2025-40334: drm/amdgpu: validate userq buffer virtual address and size

CVE-2025-40334 is fixed in linux on 1 platform by DEBIAN-CVE-2025-40334 (version 6.17.8-1), released December 9, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-40334
- Priority: High
- CVSS: 7.3 (Moderate)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 9, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40334

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/amdgpu: validate userq buffer virtual address and size  It needs to validate the userq object virtual address to determine whether it is residented in a valid vm mapping.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.17.8-1 | [DEBIAN-CVE-2025-40334](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40334.md) | Dec 9, 2025 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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