CVE-2025-21891

The CVE-2025-21891 entry concerns a Linux kernel ipvlan vulnerability where outbound IPv4/IPv6 headers could be read from skb->head if the network header was not in the skb’s linear part. The fix adds pskb_network_may_pull() calls for both IPv4 and IPv6 handlers (ipvlan_core.c: ipvlan_route_v6...