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Message-ID: <CAHmME9pJEwPvpNMGc9KCH15BNO8qRNCEw2Mh4nUjVK0c2X30kA@mail.gmail.com>
Date: Tue, 13 Jun 2017 15:28:15 +0200
From: "Jason A. Donenfeld" <Jason@...c4.com>
To: Johannes Berg <johannes@...solutions.net>
Cc: LKML <linux-kernel@...r.kernel.org>, kernel-hardening@...ts.openwall.com,
linux-wireless@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 6/6] mac80211/wpa: use constant time memory comparison for MACs
On Tue, Jun 13, 2017 at 10:20 AM, Johannes Berg
<johannes@...solutions.net> wrote:
> I'm not really sure that this is actually true, since you don't get
> much feedback on your frame that's dropped, especially if you're
> attacking from remote. Basically, I don't see how you can observe the
> timing of this operation?
There have been practical attacks published before that relied on
jitter coming from simultaneous operations.
> Anyway, applied.
Great, thanks.
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