commit 8e6d05e205143e13339fcaad930ed1a4478da1c8
Author: Chris Wright <chrisw@sous-sol.org>
Date:   Fri Sep 21 15:38:23 2007 -0700

    Linux 2.6.22.7

commit fc370f287729799250e04cb1d880140d14612bf0
Author: Andi Kleen <ak@suse.de>
Date:   Fri Sep 21 16:16:18 2007 +0200

    [PATCH] x86_64: Zero extend all registers after ptrace in 32bit entry path.
    
    Strictly it's only needed for eax.
    
    It actually does a little more than strictly needed -- the other registers
    are already zero extended.
    
    Also remove the now unnecessary and non functional compat task check
    in ptrace.
    
    This is CVE-2007-4573
    
    Found by Wojciech Purczynski
    
    Signed-off-by: Andi Kleen <ak@suse.de>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Chris Wright <chrisw@sous-sol.org>