From: Guus Sliepen <guus@tinc-vpn.org>
Date: Sun, 14 Dec 2014 11:42:03 +0000 (+0100)
Subject: Fix segfault when receiving UDP packets with an unknown source address.
X-Git-Tag: release-1.1pre11~20
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=558b19c2432d938afc4a659668bd461ace6ed744;p=oweals%2Ftinc.git

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
--- 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;