From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Tue, 5 Jul 2016 11:37:17 +0000 (+0100)
Subject: [Fix] Fix potential NULL dereference
X-Git-Tag: 1.3.0~168
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39fec823f124a82dd6a4bcd06a53a0ff062f4ac0;p=thirdparty%2Frspamd.git

[Fix] Fix potential NULL dereference
---

diff --git a/contrib/librdns/parse.c b/contrib/librdns/parse.c
index e9527eaa4e..a1b25e2ff4 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;