From: Linus T. <tor...@li...> - 2011-08-23 21:20:51
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On Tue, Aug 23, 2011 at 2:08 PM, H. Peter Anvin <hp...@zy...> wrote: > > Again, can we steal one of the padding fields to use for that state > variable? We have two 16-bit padding fields; one for cs and one for ss. We can steal them for passing the information to the user, but no, I don't think we can use them to then take the information *from* the user. Somebody may well be setting up a 'pt_regs' structure on his own, and simply not fill in the padding, resulting in random data in those fields. Linus |