CVE-2026-98697 USB: serial: fix dynamic id driver deregistration race
A race condition in Linux kernel USB serial driver deregistration can lead to resource leaks and potential denial of service.
- 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-2026-98697?
CVE-2026-98697 is a vulnerability in Linux, published on 18 Oct 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:
USB: serial: fix dynamic id driver deregistration race
Only free the dynamic ids after having deregistered the driver and removed the "new_id" attribute to avoid leaking any id added by a racing write to the attribute.
Which versions are affected by CVE-2026-98697?
How do I fix CVE-2026-98697?
Apply the vendor's patch.
Is CVE-2026-98697 being exploited?
There is no known exploitation of CVE-2026-98697 in the wild and no public exploit code.
Sources
Also known as AZL-109154, BELL-CVE-2026-98697, DEBIAN-CVE-2026-98697, GHSA-5qfj-x2wc-wcf3, UBUNTU-CVE-2026-98697.