$NetBSD: patch-CVE-2013-4361,v 1.1 2013/10/01 14:54:44 drochner Exp $

http://lists.xenproject.org/archives/html/xen-devel/2013-09/msg03162.html

--- xen/arch/x86/x86_emulate/x86_emulate.c.orig	2013-09-10 06:42:18.000000000 +0000
+++ xen/arch/x86/x86_emulate/x86_emulate.c	2013-09-30 15:23:08.000000000 +0000
@@ -2975,11 +2975,11 @@ x86_emulate(
                 break;
             case 4: /* fbld m80dec */
                 ea.bytes = 10;
-                dst = ea;
+                src = ea;
                 if ( (rc = ops->read(src.mem.seg, src.mem.off,
                                      &src.val, src.bytes, ctxt)) != 0 )
                     goto done;
-                emulate_fpu_insn_memdst("fbld", src.val);
+                emulate_fpu_insn_memsrc("fbld", src.val);
                 break;
             case 5: /* fild m64i */
                 ea.bytes = 8;