Re: [PATCH v2 29/39] x86/cet/shstk: Support wrss for userspace

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On Thu, Sep 29, 2022 at 03:29:26PM -0700, Rick Edgecombe wrote:
> For the current shadow stack implementation, shadow stacks contents easily
> be arbitrarily provisioned with data.

I can't parse this sentence.

> This property helps apps protect
> themselves better, but also restricts any potential apps that may want to
> do exotic things at the expense of a little security.

Is anything using this right now? Wouldn't thing be safer without WRSS?
(Why can't we skip this patch?)

-- 
Kees Cook




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