fix segfault if xpath expression string is invalid

23 years ago · 8f489130bf
1 changed files with 3 additions and 0 deletions
--- a/ext/dom/xpath.c
+++ b/ext/dom/xpath.c
@ -197,6 +197,9 @@ PHP_FUNCTION(dom_xpath_query)
 		ctxp->nsNr = 0;
 	}

+	if (! xpathobjp) {
+		RETURN_FALSE;
+	}
 	if (xpathobjp->type ==  XPATH_NODESET) {
 		int i;
 		xmlNodeSetPtr nodesetp;