CVE-2026-80581 ASoC: SOF: ipc4-pcm: Continue the pipeline trigger in case of IPC timeout
A flaw in the Linux kernel's SOF audio driver causes denial of service when IPC timeouts occur, requiring a patch to ensure proper state recovery.
- 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-2026-80581?
CVE-2026-80581 is a denial of service vulnerability in Linux, published on 26 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: SOF: ipc4-pcm: Continue the pipeline trigger in case of IPC timeout
Ignore IPC errors for pipeline state change if the firmware state is crashed or the IPC has timed out.
If the firmware has crashed the kernel still needs to go through the state changes to reset its internal to be able to correctly work the next time the DSP is booted up.
The case with IPC timeout is a bit more problematic, but it has been rootcaused to be the result of system scheduling blockage and the firmware did actually received and handled the message, but the reply handling got blocked by issues outside of the SOF stack. So far the best way to handle this is to continue with setting the state.
Which versions are affected by CVE-2026-80581?
How do I fix CVE-2026-80581?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-80581 being exploited?
There is no known exploitation of CVE-2026-80581 in the wild and no public exploit code.
Sources
Also known as AZL-97725, BELL-CVE-2026-80581, DEBIAN-CVE-2026-80581, GHSA-5rgw-cxhj-rmhq, UBUNTU-CVE-2026-80581.