libchipcard: fixed a potential buffer overflow adding a patch from upstream

security/libchipcard/0002-libchipcard-5.0.0-init-reader-state.patch

@@ -0,0 +1,42 @@
+# --- SDE-COPYRIGHT-NOTE-BEGIN ---
+# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
+#
+# Filename: package/.../libchipcard/0002-libchipcard-5.0.0-init-reader-state.patch
+# Copyright (C) 2011 The OpenSDE Project
+#
+# More information can be found in the files COPYING and README.
+#
+# This patch file is dual-licensed. It is available under the license the
+# patched project is licensed under, as long as it is an OpenSource license
+# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
+# of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+# --- SDE-COPYRIGHT-NOTE-END ---
+
+Description: Use the same struct when initializing the reader state with zero bytes avoids
+             uninitialized memory or buffer overflow.
+Origin: Upstream
+
+Index: trunk/src/lib/client/base/client.c
+===================================================================
+--- trunk/src/lib/client/base/client.c	(revision 589)
++++ trunk/src/lib/client/base/client.c	(revision 590)
+@@ -872,7 +872,7 @@
+ 	DBG_INFO(LC_LOGDOMAIN, "Creating reader \"%s\"", p);
+ 	i=cl->readerCount;
+         /* preset */
+-	memset((void*) &(cl->readerStates[i]), 0, sizeof(SCARD_READERSTATE_A));
++	memset((void*) &(cl->readerStates[i]), 0, sizeof(SCARD_READERSTATE));
+ 	cl->readerStates[i].szReader=p;
+ 	cl->readerStates[i].dwCurrentState=SCARD_STATE_UNAWARE;
+ 	/* reader added */
+@@ -948,7 +948,7 @@
+   assert(cl);
+ 
+   /* clear reader list and reader status list */
+-  memset((void*) &cl->readerStates, 0, sizeof(SCARD_READERSTATE_A)*MAX_READERS);
++  memset((void*) &cl->readerStates, 0, sizeof(SCARD_READERSTATE)*MAX_READERS);
+   cl->readerCount=0;
+   free(cl->readerList);
+   cl->readerList=NULL;