Memory Leak in Linux Kernel Affecting GUE Protocol Handling
CVE-2026-23095

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 4 February 2026

What is CVE-2026-23095?

The Linux kernel has a vulnerability related to memory management in the Generic UDP Encapsulation (GUE) protocol, specifically identified during the handling of GUE packets with an inner IP protocol of 0. This flaw can lead to memory leaks, as improper handling of specific packet types may result in unreferenced memory objects not being released, ultimately affecting system performance and stability. While IPv6 Hop-by-Hop Options are valid use cases, the practical need to encapsulate them in GUE is questionable. This vulnerability must be addressed to ensure the robustness and integrity of networking operations.

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