Mark Kettenis <mark.kettenis@xs4all.nl> wrote:
> I'm not sure to what extent this makes IBT less effective. Can the
> retpolines be used as gadgets to bypass IBT? Should we stop enabling
> retpolines by default?
>
> What *is* obvious is that retpolines are incompatible wuth shadow
> stacks. Is there an alternative that doesn't replace the indirect
> branch with a return instruction?
It is clear however that both AMD and Intel have seperate (yet compatible)
strategies to encourage you to buy newer chips.
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