From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 20 Jan 2016 16:15:19 +0000 (+0000)
Subject: Fix memory corruption on punycode
X-Git-Tag: 1.1.1~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef66ecf2243d5b975afd2448cd4c01583e04b2bf;p=thirdparty%2Frspamd.git

Fix memory corruption on punycode
---

diff --git a/contrib/librdns/packet.c b/contrib/librdns/packet.c
index 630413fdbf..6ce3f50fac 100644
--- a/contrib/librdns/packet.c
+++ b/contrib/librdns/packet.c
@@ -132,7 +132,7 @@ rdns_format_dns_name (struct rdns_resolver *resolver, const char *in,
 
 	p = in;
 	olen = inlen + 1 + sizeof ("xn--") * labels;
-	*out = malloc (olen);
+	*out = malloc (olen + 1);
 
 	if (*out == NULL) {
 		return false;
@@ -222,6 +222,7 @@ rdns_format_dns_name (struct rdns_resolver *resolver, const char *in,
 			goto err;
 		}
 	}
+
 	*o = '\0';
 
 	*outlen = o - *out;