CVE-2026-97510 thunderbolt: Release request if tb_cfg_request() fails in __tb_xdomain_response()
A memory leak in the Linux kernel Thunderbolt driver can lead to resource exhaustion and denial of service if configuration requests fail.
- 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-2026-97510?
CVE-2026-97510 is a memory corruption vulnerability in Linux, published on 24 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:
thunderbolt: Release request if tb_cfg_request() fails in __tb_xdomain_response()
If tb_cfg_request() fails setting up the request (for example the control channel is shut down already) it returns an error without calling the callback. To avoid leaking that memory, call tb_cfg_request_put() if tb_cfg_request() fails.
Which versions are affected by CVE-2026-97510?
How do I fix CVE-2026-97510?
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-2026-97510 being exploited?
There is no known exploitation of CVE-2026-97510 in the wild and no public exploit code.
Sources
Also known as AZL-103970, BELL-CVE-2026-97510, DEBIAN-CVE-2026-97510, GHSA-rcq8-h22x-4p97, UBUNTU-CVE-2026-97510.