From: Sebastian Pipping <sebastian@pipping.org>
Date: Sat, 1 Jul 2017 12:33:57 +0000 (+0200)
Subject: xmlparse.c: Fix parser NULL dereference
X-Git-Tag: R_2_2_2~21
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ac256dafdffc9622ab0dc2c62fcecb0dfcfa71fe;p=libexpat

xmlparse.c: Fix parser NULL dereference

errorCode is a macro resolving to parser->m_errorCode.
Issue #59 is related.
---

diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
index 66a7f35e..d38c90db 100644
--- a/expat/lib/xmlparse.c
+++ b/expat/lib/xmlparse.c
@@ -1748,7 +1748,8 @@ enum XML_Status XMLCALL
 XML_Parse(XML_Parser parser, const char *s, int len, int isFinal)
 {
   if ((parser == NULL) || (len < 0) || ((s == NULL) && (len != 0))) {
-    errorCode = XML_ERROR_INVALID_ARGUMENT;
+    if (parser != NULL)
+      parser->m_errorCode = XML_ERROR_INVALID_ARGUMENT;
     return XML_STATUS_ERROR;
   }
   switch (ps_parsing) {