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Date: Tue, 30 Jan 2018 12:13:18 -0800
From: Dan Williams <>
To: Linus Torvalds <>
Cc: Thomas Gleixner <>, Ingo Molnar <>, 
	linux-arch <>, Cyril Novikov <>, 
	Kernel Hardening <>, Peter Zijlstra <>, 
	Catalin Marinas <>, X86 ML <>, 
	Will Deacon <>, Russell King <>, 
	Ingo Molnar <>, Greg KH <>, 
	"H. Peter Anvin" <>, Alan Cox <>, 
	Linux Kernel Mailing List <>, 
	Arjan Van De Ven <>
Subject: Re: [PATCH v5 02/12] array_idx: sanitize speculative array de-references

[ adding Arjan ]

On Tue, Jan 30, 2018 at 11:38 AM, Linus Torvalds
<> wrote:
> Anyway, I do think the patches I've seen so far are ok, and the real
> reason I'm writing this email is actually more about future patches:
> do we have a good handle on where these array index sanitations will
> be needed?
> Also, while array limit checking was obviously the official
> "spectre-v1" issue, I do wonder if there are possible other issues
> where mispredicted conditional branches can end up leaking
> information?
> IOW, is there some work on tooling/analysis/similar? Not asking for
> near-term, but more of a "big picture" question..
>             Linus

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