15 Aug
2024
15 Aug
'24
4:39 p.m.
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@i...
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.