Fix segfault when receiving UDP packets with an unknown source address.

diff --git a/src/net_packet.c b/src/net_packet.c
index a01b635..a24a7ad 100644 (file)
--- a/src/net_packet.c
+++ b/src/net_packet.c
@@ -1056,7 +1056,7 @@ void handle_incoming_vpn_data(void *data, int flags) {
                // It might be from a 1.1 node, which might have a source ID in the packet.
                from = lookup_node_id(&spkt->srcid);
                if(from && !memcmp(&spkt->dstid, &nullid, sizeof nullid) && from->status.sptps) {
-                       if(sptps_verify_datagram(&n->sptps, spkt->data, spkt->len - sizeof(spkt->srcid) - sizeof(spkt->dstid)))
+                       if(sptps_verify_datagram(&from->sptps, spkt->data, spkt->len - sizeof(spkt->srcid) - sizeof(spkt->dstid)))
                                n = from;
                        else
                                goto skip_harder;