CVE-2026-64577

The CVE-2026-64577 issue is in the Linux kernel’s GTP/gtp1u path: gtp1u_send_echo_resp() ignores the return value of skb_pull_data(), while gtp1u_udp_encap_recv() can require 20 bytes but only guarantees 16. When a 16–19 byte echo request triggers a failed pull, the code continues and skb_push() ...