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.
- 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
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
Which versions are affected by CVE-2025-71081?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-71081?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
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
Sources
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 and 3 more.