CVE-2025-38641 Bluetooth: btusb: Fix potential NULL dereference on kmalloc failure
A missing check for memory allocation failure in the Linux kernel Bluetooth USB driver can cause a NULL pointer dereference, leading to a system crash.
- 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-2025-38641?
CVE-2025-38641 is a medium-severity vulnerability in Linux kernel, published on 22 Aug 2025. 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: btusb: Fix potential NULL dereference on kmalloc failure
Avoid potential NULL pointer dereference by checking the return value of kmalloc and handling allocation failure properly.
Weakness: CWE-476
Which versions are affected by CVE-2025-38641?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38641?
Apply the vendor's patch.
Is CVE-2025-38641 being exploited?
There is no known exploitation of CVE-2025-38641 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-38641, GHSA-78pg-f8xh-rcvm, UBUNTU-CVE-2025-38641.