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Date: Mon, 25 Nov 2013 21:11:34 +0100
From: Borislav Petkov <bp@alien8.de>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>, stable@vger.kernel.org
Subject: Re: [PATCH 2/4] x86: Fix the hw_breakpoint range check
Message-ID: <20131125201134.GK6782@pd.tnic>
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On Mon, Nov 25, 2013 at 08:50:28PM +0100, Oleg Nesterov wrote:
> This won't work if va + len overflows?

Oh, right,

> Perhaps we should makes this clear, and we can even check the overflow
> in the generic code (iirc Linus suggested to do this).

maybe something like

	((va + len - 1) >= TASK_SIZE) || ((va + len - 1) < va)

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--