# CVE-2025-71081: ASoC: stm32: sai: fix OF node leak on probe

> A use-after-free vulnerability in the Linux kernel STM32 SAI driver allows attackers to potentially execute code or cause a denial of service via probe failures.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Jan 2026
- **Updated:** 11 May 2026
- **Also known as:** BELL-CVE-2025-71081, DEBIAN-CVE-2025-71081, GHSA-hxrf-6739-fv3g, ROOT-OS-DEBIAN-11-CVE-2025-71081, ROOT-OS-DEBIAN-12-CVE-2025-71081, ROOT-OS-DEBIAN-13-CVE-2025-71081, ROOT-OS-UBUNTU-2204-CVE-2025-71081, ROOT-OS-UBUNTU-2404-CVE-2025-71081, UBUNTU-CVE-2025-71081

## What is CVE-2025-71081?

CVE-2025-71081 is a medium-severity use after free vulnerability in Linux kernel, published on 13 Jan 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: stm32: sai: fix OF node leak on probe

The reference taken to the sync provider OF node when probing the
platform device is currently only dropped if the set_sync() callback
fails during DAI probe.

Make sure to drop the reference on platform probe failures (e.g. probe
deferral) and on driver unbind.

This also avoids a potential use-after-free in case the DAI is ever
reprobed without first rebinding the platform driver.

Weakness: CWE-401 (Missing Release of Memory after Effective Lifetime)

## Which versions are affected by CVE-2025-71081?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2025-71081?

Apply the vendor's patch.

## Is CVE-2025-71081 being exploited?

There is no known exploitation of CVE-2025-71081 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-71081 and fix it if it is affected.

What it is: CVE-2025-71081 is a medium-severity use after free vulnerability in Linux kernel, published on 13 Jan 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-2025-71081 in the wild and no public exploit code.

Affected product: Linux kernel. 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-2025-71081/ (Markdown: https://insights.sbomify.com/CVE-2025-71081/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-71081
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-71081
- OSV: https://osv.dev/vulnerability/CVE-2025-71081

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-71081/
Summaries are generated and may contain mistakes; the official description above is the record.