Validate parser parameter to XML_SetEndElementHandler

diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
index 2f0c5b4fc978ff70924250beb38c14cee6840bc1..560e489a8b373a1912cce8ff44ec9ff77aeb67ec 100644 (file)
--- a/expat/lib/xmlparse.c
+++ b/expat/lib/xmlparse.c
@@ -1398,7 +1398,8 @@ XML_SetStartElementHandler(XML_Parser parser,
 void XMLCALL
 XML_SetEndElementHandler(XML_Parser parser,
                          XML_EndElementHandler end) {
-  endElementHandler = end;
+  if (parser != NULL)
+    endElementHandler = end;
 }
 
 void XMLCALL