From 39840438bb3c29a0b890745f490a350a84470b75 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Fri, 16 May 2014 15:34:33 +0200
Subject: dosfs: Fix read from invalid memory area

---
 cpukit/libfs/src/dosfs/msdos_conv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpukit/libfs/src/dosfs/msdos_conv.c b/cpukit/libfs/src/dosfs/msdos_conv.c
index 7e688ef3ce..b391717d07 100644
--- a/cpukit/libfs/src/dosfs/msdos_conv.c
+++ b/cpukit/libfs/src/dosfs/msdos_conv.c
@@ -631,7 +631,7 @@ msdos_filename_utf8_to_short_name_for_save (
          * Strip any further characters up to a '.' or the end of the
          * string.
          */
-        if ( *name_ptr == '.' ) {
+        if ( name_size > 0 && *name_ptr == '.' ) {
           ++name_ptr;
           --name_size;
         }
-- 
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