netdev - Re: [PATCH] ax88172a: fix information leak on short answers

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Date:   Fri, 15 Nov 2019 12:19:39 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     oneukum@...e.com
Cc:     tglx@...utronix.de, allison@...utok.net, swinslow@...il.com,
        netdev@...r.kernel.org
Subject: Re: [PATCH] ax88172a: fix information leak on short answers

From: Oliver Neukum <oneukum@...e.com>
Date: Thu, 14 Nov 2019 11:16:01 +0100

> If a malicious device gives a short MAC it can elicit up to
> 5 bytes of leaked memory out of the driver. We need to check for
> ETH_ALEN instead.
> 
> Reported-by: syzbot+a8d4acdad35e6bbca308@...kaller.appspotmail.com
> Signed-off-by: Oliver Neukum <oneukum@...e.com>

Applied and queued up for -stable.