Linux Kernel Bluetooth btsdio Use-After-Free Vulnerability

Vulnerability

A use-after-free vulnerability has been identified in the Bluetooth btsdio component of the Linux kernel. This issue arises from a race condition in the btsdio_remove function, where the hdev variable can be freed while still in use by btsdio_work. The vulnerability occurs in versions of the Linux kernel that include this flawed btsdio implementation.

Impact

Exploitation of this vulnerability can lead to a use-after-free condition, potentially allowing for memory corruption or arbitrary code execution.

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

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.0
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.