# CVE-2023-54231: net: libwx: fix memory leak in wx_setup_rx_resources

> A memory leak in the Linux kernel libwx driver allows remote attackers to cause a denial of service by triggering a specific error path.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 30 Dec 2025
- **Updated:** 11 May 2026
- **Also known as:** BELL-CVE-2023-54231, GHSA-gf2w-4455-j26q, UBUNTU-CVE-2023-54231

## What is CVE-2023-54231?

CVE-2023-54231 is a denial of service vulnerability in Linux, published on 30 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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

net: libwx: fix memory leak in wx_setup_rx_resources

When wx_alloc_page_pool() failed in wx_setup_rx_resources(), it doesn't
release DMA buffer. Add dma_free_coherent() in the error path to release
the DMA buffer.

## Which versions are affected by CVE-2023-54231?


## How do I fix CVE-2023-54231?

Apply the vendor's patch.

## Is CVE-2023-54231 being exploited?

There is no known exploitation of CVE-2023-54231 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-54231 and fix it if it is affected.

What it is: CVE-2023-54231 is a denial of service vulnerability in Linux, published on 30 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-54231 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-2023-54231/ (Markdown: https://insights.sbomify.com/CVE-2023-54231/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-54231
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-54231
- OSV: https://osv.dev/vulnerability/CVE-2023-54231

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-54231/
Summaries are generated and may contain mistakes; the official description above is the record.