Linux Kernel Bluetooth Memory Leak Vulnerability in hci_conn Component

Vulnerability

A memory leak vulnerability has been identified in the Bluetooth subsystem of the Linux kernel. The issue arises in the hci_cmd_sync_queue() function when it fails during the hci_le_terminate_big() or hci_le_big_terminate() processes. In these scenarios, the memory referenced by variable 'd' is not properly released, leading to a memory leak. The vulnerability has been addressed by adding a release process to the error handling path.

Impact

Exploitation of this vulnerability leads to memory leaks, which can cause increased memory usage and potentially degrade system performance over time.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
0.6
exploitability
5.3
remediation
0.0
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.