CVE-2026-80900 ASoC: SDCA: Make UMP message size check more robust
A flaw in the Linux kernel's ASoC SDCA driver allows bypassing size checks, potentially leading to memory corruption or 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-2026-80900?
CVE-2026-80900 is a vulnerability in Linux, published on 4 Sep 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: SDCA: Make UMP message size check more robust
If message offset was larger than the buffer length the size check will pass incorrectly. Refactor the check such that it is more robust to invalid sizes.
Which versions are affected by CVE-2026-80900?
How do I fix CVE-2026-80900?
Apply the vendor's patch.
Is CVE-2026-80900 being exploited?
There is no known exploitation of CVE-2026-80900 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-80900, GHSA-6r73-j3jm-8qjg, UBUNTU-CVE-2026-80900.