On Tue, Jan 9, 2018 at 1:26 PM, Andy Lutomirski <l...@kernel.org> wrote: > 2.Turning off PTI is, in general, a terrible idea. It totally breaks > any semblance of a security model on a Meltdown-affected CPU. So I > think we should require CAP_SYS_RAWIO *and* that the system is booted > with pti=allow_optout or something like that.
Agreed, this shouldn't be default-available. Besides, your most trusted processes are the ones most likely to be targeted for attack. :( -Kees -- Kees Cook Pixel Security