Thomas Faller : cmd: Fix access of uninitialized memory.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 43dfe7637670d51ddab43c487e772109b7708fc8
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=43dfe7637670d51ddab43c487e772109b7708fc8

Author: Thomas Faller <tfaller1 at gmx.de>
Date:   Thu Jun 11 22:14:11 2015 +0200

cmd: Fix access of uninitialized memory.

---

 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;