Linux xfrm NAT Keepalive Code Execution

The vulnerability of the natkeepalivesend function in the xfrm component of the Linux operating system’s kernel is related to the multiple release of the same resource or descriptor. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

CVE-2026-72137: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: xfrm: natkeepalive: avoid double free on send error natkeepalivesend frees the keepalive skb whenever the IPv4 or IPv6 send helper reports an error. That cleanup is only correct before the skb is handed to the output path. Once...