Messages in this thread | | | Date | Wed, 18 Oct 2023 17:12:45 +0200 | From | Borislav Petkov <> | Subject | Re: [tip: x86/bugs] x86/retpoline: Ensure default return thunk isn't used at runtime |
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On Wed, Oct 18, 2023 at 03:38:56PM +0200, Ingo Molnar wrote: > If then WARN_ONCE().
WARN_ONCE() is not enough considering that if this fires, it means we're not really properly protected against one of those RET-speculation things.
It needs to be warning constantly but then still allow booting. I.e, a ratelimited warn of sorts but I don't think we have that... yet.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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