From: Yuuki Wakisaka <yuuki-w@iij.ad.jp>
Date: Tue, 17 Mar 2020 05:57:36 +0000 (+0900)
Subject: fix #95 infinity loop when WKS record has over port number 65528
X-Git-Tag: 1.8.0-rc.1~55^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F96%2Fhead;p=thirdparty%2Fldns.git

fix #95 infinity loop when WKS record has over port number 65528
---

diff --git a/host2str.c b/host2str.c
index 29a5f5c9..d8108db0 100644
--- a/host2str.c
+++ b/host2str.c
@@ -855,6 +855,8 @@ ldns_rdf2buffer_str_wks(ldns_buffer *output, const ldns_rdf *rdf)
 			endservent();
 #endif
 		}
+		/* exit from loop before integer overflow */
+		if(current_service == 65535) { break; }
 	}
 	return ldns_buffer_status(output);
 }