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Date:   Thu, 25 Aug 2022 21:42:12 +0200
From:   Peter Zijlstra <>
To:     Kees Cook <>
Cc:     Dave Hansen <>,,,
Subject: Re: [PATCH] x86/mm: Refuse W^X violations

On Thu, Aug 25, 2022 at 11:16:12AM -0700, Kees Cook wrote:
> On Thu, Aug 25, 2022 at 02:23:31PM +0200, Peter Zijlstra wrote:
> > x86 has STRICT_*_RWX, but not even a warning when someone violates it.
> Yes please. I assume this is only kernel pages? Doing this globally is
> nice too, but runs into annoying problems[1].

Yeah, this interface should only be used on kernel pages.

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