# CVE-2025-40338: ASoC: Intel: avs: Do not share the name pointer between components

> A use-after-free vulnerability in the Linux kernel's Intel ASoC driver allows local attackers to potentially execute code or cause a system crash.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 9 Dec 2025
- **Updated:** 21 Oct 2026
- **Also known as:** BELL-CVE-2025-40338, DEBIAN-CVE-2025-40338, GHSA-w9v5-xxq6-jh2w, ROOT-OS-DEBIAN-12-CVE-2025-40338, ROOT-OS-DEBIAN-13-CVE-2025-40338, ROOT-OS-UBUNTU-2204-CVE-2025-40338, ROOT-OS-UBUNTU-2404-CVE-2025-40338, UBUNTU-CVE-2025-40338

## What is CVE-2025-40338?

CVE-2025-40338 is an use after free vulnerability in Linux, published on 9 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

ASoC: Intel: avs: Do not share the name pointer between components

By sharing 'name' directly, tearing down components may lead to
use-after-free errors. Duplicate the name to avoid that.

At the same time, update the order of operations - since commit
cee28113db17 ("ASoC: dmaengine_pcm: Allow passing component name via
config") the framework does not override component->name if set before
invoking the initializer.

## Which versions are affected by CVE-2025-40338?


## How do I fix CVE-2025-40338?

Apply the vendor's patch.

## Is CVE-2025-40338 being exploited?

There is no known exploitation of CVE-2025-40338 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-40338 and fix it if it is affected.

What it is: CVE-2025-40338 is an use after free vulnerability in Linux, published on 9 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-40338 in the wild and no public exploit code.

Affected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-40338/ (Markdown: https://insights.sbomify.com/CVE-2025-40338/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-40338
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-40338
- OSV: https://osv.dev/vulnerability/CVE-2025-40338

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-40338/
Summaries are generated and may contain mistakes; the official description above is the record.