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.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
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.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-72259 being exploited?
There is no known exploitation of CVE-2026-72259 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72259, DEBIAN-CVE-2026-72259, GHSA-5g8r-698f-fmm9, UBUNTU-CVE-2026-72259.