Linux Kernel Resource Leak Vulnerability in mt7921 Wi-Fi Driver

Vulnerability

A resource leak vulnerability has been identified in the Linux kernel's Wi-Fi mt76 mt7921 driver. This issue arises in the function mt7921_check_offload_capability(), where the variable 'fw' goes out of scope without properly releasing the firmware resource it points to. As a result, the leaked resource could lead to unintended behavior or memory issues. This vulnerability affects the Linux kernel stable tree.

Impact

The vulnerability causes a resource leak, where firmware resources are not properly released, potentially leading to memory management issues.

Remediation

Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been addressed. Instructions for downloading the updated kernel can be found on the official Linux kernel website.

Added: Oct 1, 2025, 1:13 PM
Updated: Oct 1, 2025, 1:13 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
0.6
exploitability
5.3
remediation
7.7
relevance
0.6
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.