[pschweitzer] 47981: [FASTFAT] Check PathName length before accessing it. This fixes ntdll_winetest file test BSOD. But the test crashes a bit farther.

Author: pschweitzer
Date: Fri Jul  9 19:39:55 2010
New Revision: 47981

URL: http://svn.reactos.org/svn/reactos?rev=47981&view=rev
Log:
[FASTFAT]
Check PathName length before accessing it. This fixes ntdll_winetest file test BSOD. But the test crashes a bit farther.

Modified:
    trunk/reactos/drivers/filesystems/fastfat/create.c

Modified: trunk/reactos/drivers/filesystems/fastfat/create.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfat...
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/create.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/create.c [iso-8859-1] Fri Jul  9 19:39:55 2010
@@ -522,7 +522,7 @@
    		return(STATUS_OBJECT_NAME_INVALID);
    	}
    }
-        if (FileObject->RelatedFileObject && PathNameU.Buffer[0] == L'\')
+        if (FileObject->RelatedFileObject && PathNameU.Length > sizeof(WCHAR) && PathNameU.Buffer[0] == L'\')
         {
             return(STATUS_OBJECT_NAME_INVALID);
         }