Re: [PATCH v10 12/40] mm: Define VM_SHADOW_STACK for arm64 when we support GCS

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On Thu, 2024-08-01 at 13:06 +0100, Mark Brown wrote:
> Use VM_HIGH_ARCH_5 for guarded control stack pages.

FYI - If you want to have more complete guard gaps, you need to do this for arm
too:
https://lore.kernel.org/linux-mm/20240326021656.202649-14-rick.p.edgecombe@xxxxxxxxx/

Using VM_SHADOW_STACK only gets you part of the way there.




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