On Thu, Aug 15, 2024 at 04:26:47PM +0100, Mark Brown wrote: > On Thu, Aug 15, 2024 at 03:20:52PM +0000, Edgecombe, Rick P wrote: > > 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. > Oh, thanks for the heads up - I'd missed that. Looking at this I think it makes sense to do as was done for x86 and split this out into a separate series (part of why I'd missed it), updating the generic implementation to do this by default. That'll touch a bunch of architectures and the series is already quite big, it's not really an ABI impact.
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