--- openbsd/src/usr.sbin/bgpd/config.c	2020-03-20 17:55:04.089577745 +0100
+++ openbsd/src/usr.sbin/bgpd/config.c	2020-03-20 17:56:01.480205070 +0100
@@ -343,7 +343,8 @@
 		fatal("getifaddrs");
 
 	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
-		if (ifa->ifa_addr->sa_family != AF_INET)
+		if (ifa->ifa_addr == NULL ||
+		    ifa->ifa_addr->sa_family != AF_INET)
 			continue;
 		cur = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
 		if ((cur & localnet) == localnet)	/* skip 127/8 */