From ce582024a51050c3f39748a7eaf44d41ab2f5cdc Mon Sep 17 00:00:00 2001
From: Rob Richards <rrichards@php.net>
Date: Tue, 31 Jul 2007 15:07:54 +0000
Subject: [PATCH] MFH: fix possible crash

---
 ext/simplexml/simplexml.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ext/simplexml/simplexml.c b/ext/simplexml/simplexml.c
index d480497738..47260f965f 100644
--- a/ext/simplexml/simplexml.c
+++ b/ext/simplexml/simplexml.c
@@ -1575,7 +1575,9 @@ SXE_METHOD(addChild)
 			newnode->ns = NULL;
 			nsptr = xmlNewNs(newnode, (xmlChar *)nsuri, prefix);
 		} else {
-			nsptr = xmlSearchNsByHref(node->doc, node, (xmlChar *)nsuri);
+			if (node) {
+				nsptr = xmlSearchNsByHref(node->doc, node, (xmlChar *)nsuri);
+			}
 			if (nsptr == NULL) {
 				nsptr = xmlNewNs(newnode, (xmlChar *)nsuri, prefix);
 			}
-- 
2.40.0