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Andi Kleen authored
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>
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