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Linux Kernel Bluetooth NULL Pointer Dereference Vulnerability in hci_uart

Vulnerability

A vulnerability in the Linux kernel's Bluetooth subsystem, specifically within the hci_uart component, has been addressed. The issue stemmed from a missing NULL pointer check, which could lead to a general protection fault. The flaw occurred because the hu->serdev variable could be NULL, and passing &serdev->dev without proper validation could cause a crash.

Impact

The vulnerability could lead to a general protection fault, causing a crash by improperly handling a NULL pointer.

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
5.3
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.