# CVE-2026-72259: ASoC: mediatek: mt8192: Release reserved memory on cleanup

> A memory leak in the Linux kernel MT8192 audio driver can lead to resource exhaustion and denial of service.

- **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:** 15 Aug 2026
- **Updated:** 17 Aug 2026
- **Also known as:** BELL-CVE-2026-72259, DEBIAN-CVE-2026-72259, GHSA-5g8r-698f-fmm9, UBUNTU-CVE-2026-72259

## What is CVE-2026-72259?

CVE-2026-72259 is a memory corruption vulnerability in Linux, published on 15 Aug 2026. 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: mediatek: mt8192: Release reserved memory on cleanup

The MT8192 AFE probe calls of_reserved_mem_device_init() and falls
back to preallocated buffers when no reserved memory region is
available. When the reserved memory assignment succeeds, however, the
driver never releases it.

Register a devm cleanup action after a successful reserved-memory
assignment so the assignment is released on probe failure and driver
unbind.

## Which versions are affected by CVE-2026-72259?


## How do I fix CVE-2026-72259?

Apply the vendor's patch.

## Is CVE-2026-72259 being exploited?

There is no known exploitation of CVE-2026-72259 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-72259 and fix it if it is affected.

What it is: CVE-2026-72259 is a memory corruption vulnerability in Linux, published on 15 Aug 2026. 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-2026-72259 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-2026-72259/ (Markdown: https://insights.sbomify.com/CVE-2026-72259/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-72259
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72259
- OSV: https://osv.dev/vulnerability/CVE-2026-72259

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-72259/
Summaries are generated and may contain mistakes; the official description above is the record.