From: Thomas Faller <tfaller1@gmx.de>
Subject: [PATCH] cmd: Fix access of uninitialized memory
Message-Id: <5579EC13.9070008@gmx.de>
Date: Thu, 11 Jun 2015 22:14:11 +0200

Patch for  https://bugs.winehq.org/show_bug.cgi?id=36163

---
  programs/cmd/builtins.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/programs/cmd/builtins.c b/programs/cmd/builtins.c
index 724da20..30b8684 100644
--- a/programs/cmd/builtins.c
+++ b/programs/cmd/builtins.c
@@ -3313,7 +3313,8 @@ void WCMD_setshow_default (const WCHAR *args) {
   WINE_TRACE("Request change to directory '%s'\n", wine_dbgstr_w(args));
 
   /* Skip /D and trailing whitespace if on the front of the command line */
-  if (CompareStringW(LOCALE_USER_DEFAULT,
+  if (strlenW(args) >= 2 &&
+      CompareStringW(LOCALE_USER_DEFAULT,
                      NORM_IGNORECASE | SORT_STRINGSORT,
                      args, 2, parmD, -1) == CSTR_EQUAL) {
     args += 2;