Fix memory leak in xmlParseElementMixedContentDecl
Free parsed content if malloc fails to avoid a memory leak.
Found with libFuzzer.
diff --git a/parser.c b/parser.c
index 85494df..43b8835 100644
--- a/parser.c
+++ b/parser.c
@@ -6082,14 +6082,20 @@
NEXT;
if (elem == NULL) {
ret = xmlNewDocElementContent(ctxt->myDoc, NULL, XML_ELEMENT_CONTENT_OR);
- if (ret == NULL) return(NULL);
+ if (ret == NULL) {
+ xmlFreeDocElementContent(ctxt->myDoc, cur);
+ return(NULL);
+ }
ret->c1 = cur;
if (cur != NULL)
cur->parent = ret;
cur = ret;
} else {
n = xmlNewDocElementContent(ctxt->myDoc, NULL, XML_ELEMENT_CONTENT_OR);
- if (n == NULL) return(NULL);
+ if (n == NULL) {
+ xmlFreeDocElementContent(ctxt->myDoc, ret);
+ return(NULL);
+ }
n->c1 = xmlNewDocElementContent(ctxt->myDoc, elem, XML_ELEMENT_CONTENT_ELEMENT);
if (n->c1 != NULL)
n->c1->parent = n;
