From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Rhodri James <rhodri@kynesim.co.uk>
Date: Tue, 25 Apr 2017 18:13:36 +0100
Subject: [PATCH] Validate parser parameter for XML_ParseBuffer

---
 lib/xmlparse.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/xmlparse.c b/lib/xmlparse.c
index 9df42782..d3b43171 100644
--- a/lib/xmlparse.c
+++ b/lib/xmlparse.c
@@ -1670,6 +1670,8 @@ XML_ParseBuffer(XML_Parser parser, int len, int isFinal)
   const char *start;
   enum XML_Status result = XML_STATUS_OK;
 
+  if (parser == NULL)
+    return XML_STATUS_ERROR;
   switch (ps_parsing) {
   case XML_SUSPENDED:
     errorCode = XML_ERROR_SUSPENDED;