diff --git a/sys/netinet6/raw_ip6.c b/sys/netinet6/raw_ip6.c
index e6350413d67..60960705233 100644
--- a/sys/netinet6/raw_ip6.c
+++ b/sys/netinet6/raw_ip6.c
@@ -197,6 +197,7 @@ rip6_input(struct mbuf **mp, int *offp, int proto)
 			    &ip6->ip6_dst) != 0)
 				continue;
 		}
+		INP_RLOCK(in6p);
 		if (in6p->in6p_cksum != -1) {
 			V_rip6stat.rip6s_isum++;
 			if (in6_cksum(m, proto, *offp,
@@ -206,7 +207,6 @@ rip6_input(struct mbuf **mp, int *offp, int proto)
 				continue;
 			}
 		}
-		INP_RLOCK(in6p);
 		/*
 		 * If this raw socket has multicast state, and we
 		 * have received a multicast, check if this socket