[mjansen] 71489: [APPHELP] Fix a possible out of bounds write.

Author: mjansen
Date: Wed Jun  1 19:37:25 2016
New Revision: 71489

URL: http://svn.reactos.org/svn/reactos?rev=71489&view=rev
Log:
[APPHELP] Fix a possible out of bounds write.

Modified:
    trunk/reactos/dll/appcompat/apphelp/sdbwrite.c

Modified: trunk/reactos/dll/appcompat/apphelp/sdbwrite.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/appcompat/apphelp/sdbwr...
==============================================================================
--- trunk/reactos/dll/appcompat/apphelp/sdbwrite.c	[iso-8859-1] (original)
+++ trunk/reactos/dll/appcompat/apphelp/sdbwrite.c	[iso-8859-1] Wed Jun  1 19:37:25 2016
@@ -272,13 +272,14 @@
 TAGID WINAPI SdbBeginWriteListTag(PDB db, TAG tag)
 {
     TAGID list_id;
+    DWORD dum = 0;

if (!SdbpCheckTagType(tag, TAG_TYPE_LIST))
         return TAGID_NULL;

list_id = db->write_iter;
     SdbpWrite(db, &tag, sizeof(TAG));
-    db->write_iter += sizeof(DWORD); /* reserve some memory for storing list size */
+    SdbpWrite(db, &dum, sizeof(dum)); /* reserve some memory for storing list size */
     return list_id;
 }