CVE-2026-31683

A flaw was found in the batman-adv module of the Linux kernel. This vulnerability arises when the Optimized Global Messaging (OGM) aggregation state is dynamically altered, leading to insufficient buffer space (skb tailroom) for network packets. A remote attacker could exploit this condition by sending specially crafted network packets, potentially causing a memory corruption vulnerability that results in a system crash or denial of service. The system may become unstable or unresponsive.