1010.diff

commit 074180119fc90d5fd04ef9e8a5ee1910d6f9ad8e
Author: David Tardon <dtardon@redhat.com>
Date:   Wed Apr 5 10:22:40 2017 +0200

    Do not leak the new CData node if adding fails
    
    For https://bugzilla.gnome.org/show_bug.cgi?id=780918

diff --git a/SAX2.c b/SAX2.c
index 5cbb700a..0f0ad2a4 100644
--- a/SAX2.c
+++ b/SAX2.c
@@ -2788,24 +2788,25 @@ void
 xmlSAX2CDataBlock(void *ctx, const xmlChar *value, int len)
 {
     xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
     xmlNodePtr ret, lastChild;
 
     if (ctx == NULL) return;
 #ifdef DEBUG_SAX
     xmlGenericError(xmlGenericErrorContext,
 	    "SAX.pcdata(%.10s, %d)\n", value, len);
 #endif
     lastChild = xmlGetLastChild(ctxt->node);
 #ifdef DEBUG_SAX_TREE
     xmlGenericError(xmlGenericErrorContext,
 	    "add chars to %s \n", ctxt->node->name);
 #endif
     if ((lastChild != NULL) &&
         (lastChild->type == XML_CDATA_SECTION_NODE)) {
 	xmlTextConcat(lastChild, value, len);
     } else {
 	ret = xmlNewCDataBlock(ctxt->myDoc, value, len);
-	xmlAddChild(ctxt->node, ret);
+	if (xmlAddChild(ctxt->node, ret) == NULL)
+		xmlFreeNode(ret);
     }
 }