Linux IP Tunnel DoS

The vulnerability of the ip6tunnelxmit function included in net/ip6tunnel.h and the iptunnelxmit function in net/ipv4/iptunnelcore.c in the Linux operating system is related to unmanaged recursion. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-23276: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: add xmit recursion limit to tunnel xmit functions Tunnel xmit functions iptunnelxmit, ip6tunnelxmit lack their own recursion limit. When a bond device in broadcast mode has GRE tap interfaces as slaves, and those GRE tunnels...