CVE-2026-97913 accel: ethosu: Ensure cmd stream ends with a stop op
A missing stop operation in the Ethos-U command stream can cause hardware timeouts, leading to a denial of service in the Linux kernel.
- 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-2026-97913?
CVE-2026-97913 is a denial of service vulnerability in Linux, published on 25 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:
accel: ethosu: Ensure cmd stream ends with a stop op
While the QSIZE register setting should prevent an out of bounds access of the command stream, it is not clear whether the h/w generates an interrupt in this case as is required (to prevent a timeout). As a stop op is expected end of the command stream, let's just ensure it is present. A stop op in the middle of the command stream also makes no sense.
Which versions are affected by CVE-2026-97913?
How do I fix CVE-2026-97913?
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-2026-97913 being exploited?
There is no known exploitation of CVE-2026-97913 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-97913, GHSA-3g6x-42f6-fgw4, UBUNTU-CVE-2026-97913.