CVE-2026-46172

** CWE-XXXX**: CVE-2026-46172 affects the Linux kernel IPv6 xfrm6 path. The issue occurs in xfrm6_rcv_encap() during an IPv6 route lookup when a dst is not yet attached; ip6_route_input_lookup() can return a dst with an error, and if dst->error is set, the skb is dropped without attaching/rele...