CVE-2026-64144 Bluetooth: btmtk: fix urb->setup_packet leak in error paths
A memory leak in the Linux kernel Bluetooth driver allows attackers to cause denial of service by triggering error paths in USB control transfers.
- 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-2026-64144?
CVE-2026-64144 is a medium-severity memory corruption vulnerability in Linux kernel, published on 19 Jul 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:
Bluetooth: btmtk: fix urb->setup_packet leak in error paths
The setup_packet of control urb is not freed if usb_submit_urb fails or the submitted urb is killed. Add free in these two paths.
Weakness: CWE-401
Which versions are affected by CVE-2026-64144?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-64144?
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-2026-64144 being exploited?
There is no known exploitation of CVE-2026-64144 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-64144, DEBIAN-CVE-2026-64144, GHSA-wh4m-6pmv-mq2m, ROOT-OS-UBUNTU-2204-CVE-2026-64144, UBUNTU-CVE-2026-64144.