Bluetooth Vulnerability in Linux Kernel Affecting L2CAP Functions

CVE-2026-45834

What is CVE-2026-45834?

A vulnerability has been identified within the Bluetooth subsystem of the Linux kernel, specifically in the L2CAP (Logical Link Control and Adaptation Protocol) component. This issue can lead to unexpected behavior due to a null pointer dereference during state change callbacks. A fix has been implemented to add necessary null checks to enhance system stability and prevent potential crashes. Users are advised to update their kernel to the latest version to ensure the security and integrity of their systems.

References