Linux Kernel IPv6 Memory Leak Vulnerability in fib_check_nh_v6_gw()

A memory leak vulnerability has been identified in the Linux kernel's IPv6 handling, specifically within the fib_check_nh_v6_gw() function. This issue arises because the function expects proper cleanup from fib6_nh_init() when an error occurs. However, a recent change in the initialization process overlooked this cleanup, leading to a memory leak. The vulnerability affects several versions of the Linux kernel.

Impact

Exploitation of this vulnerability leads to a memory leak, causing increased memory usage and potential degradation of system performance.

Remediation

Users can apply the latest patches available in the Linux kernel's official repository to address this vulnerability.