From 39fec823f124a82dd6a4bcd06a53a0ff062f4ac0 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 5 Jul 2016 12:37:17 +0100
Subject: [PATCH] [Fix] Fix potential NULL dereference

---
 contrib/librdns/parse.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/contrib/librdns/parse.c b/contrib/librdns/parse.c
index e9527eaa4..a1b25e2ff 100644
--- a/contrib/librdns/parse.c
+++ b/contrib/librdns/parse.c
@@ -209,6 +209,11 @@ rdns_parse_labels (struct rdns_resolver *resolver,
 		else if (llen & DNS_COMPRESSION_BITS) {
 			llen = UNCOMPRESS_DNS_OFFSET(p);
 			l = rdns_decompress_label (in, &llen, end - in);
+
+			if (l == NULL) {
+				goto end;
+			}
+
 			begin = l;
 			length = end - begin;
 			p = l + *l + 1;
-- 
2.39.5