# CVE-2026-99119: drm/amdgpu/userq: actually validate userq BOs

- Also known as: EUVD-2026-112019
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

The Linux kernel's AMD GPU driver (amdgpu) user-queue code is affected. A bug in how buffer objects are validated could leave some memory buffers that were evicted before a user queue was created without proper handling, which may cause memory management and GPU eviction-fence errors that can lead to system instability.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Linux: version range not reported
- Linux: 7.2

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: actually validate userq BOs This was supposed to loop over the individual evicted list, as the kernel and always_valid evicted lists were already handled in amdgpu_vm_validate. Without this, BOs that were created and evicted before a userq was made would never end up in an eviction fence rearm. Also add the missing ref to the BO before drm_exec locks and refs it. (cherry picked from commit 18decfc9e8cc0fa70b6de9944cc27a37729edfbd)

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-99119

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/d1d6b859e89dd274cd0fae77503cdf91be8310c0
- https://git.kernel.org/stable/c/32d0771ef4ca69c30a1db3aefa34dd177cd2a047

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