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Date: Fri, 3 Mar 2023 16:37:24 +0100
From: Borislav Petkov <bp@...en8.de>
To: Rick Edgecombe <rick.p.edgecombe@...el.com>
Cc: x86@...nel.org, "H . Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>,
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Subject: Re: [PATCH v7 20/41] x86/mm: Teach pte_mkwrite() about stack memory
On Mon, Feb 27, 2023 at 02:29:36PM -0800, Rick Edgecombe wrote:
> If a VMA has the VM_SHADOW_STACK flag, it is shadow stack memory. So
> when it is made writable with pte_mkwrite(), it should create shadow
> stack memory, not conventionally writable memory. Now that pte_mkwrite()
> takes a VMA, and places where shadow stack memory might be created pass
> one, pte_mkwrite() can know when it should do this.
^^^^
This sentence needs rewriting.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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