Linux Kernel Netfilter nf_tables Memory Leak Vulnerability

Vulnerability

A memory leak vulnerability has been identified in the Linux kernel's netfilter component, specifically within the nf_tables subsystem. The issue arises from the improper handling of flow rule objects during transaction processing, leading to a memory leak. The vulnerability has been addressed by updating the code to properly destroy these objects before releasing the transaction.

Impact

Exploitation of this vulnerability leads to a memory leak, where allocated memory is not properly released, potentially causing increased memory usage and degradation of 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
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.