From: Rhodri James <rhodri@kynesim.co.uk>
Date: Tue, 25 Apr 2017 16:52:04 +0000 (+0100)
Subject: Validate parser parameter to XML_SetXmlDeclHandler
X-Git-Tag: R_2_2_1~51^2~20
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e5430d8a07a7edf7e8700579a62644b5ed87c355;p=libexpat

Validate parser parameter to XML_SetXmlDeclHandler
---

diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
index 27accb22..3125c671 100644
--- a/expat/lib/xmlparse.c
+++ b/expat/lib/xmlparse.c
@@ -1610,7 +1610,8 @@ XML_SetEntityDeclHandler(XML_Parser parser,
 void XMLCALL
 XML_SetXmlDeclHandler(XML_Parser parser,
                       XML_XmlDeclHandler handler) {
-  xmlDeclHandler = handler;
+  if (parser != NULL)
+    xmlDeclHandler = handler;
 }
 
 int XMLCALL