netdev - Re: [PATCH] usbnet: sanity checking of packet sizes and device mtu

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Message-Id: <20190919.132748.2115280997703522390.davem@davemloft.net>
Date:   Thu, 19 Sep 2019 13:27:48 +0200 (CEST)
From:   David Miller <davem@...emloft.net>
To:     oneukum@...e.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH] usbnet: sanity checking of packet sizes and device mtu

From: Oliver Neukum <oneukum@...e.com>
Date: Thu, 19 Sep 2019 10:23:08 +0200

> After a reset packet sizes and device mtu can change and need
> to be reevaluated to calculate queue sizes.
> Malicious devices can set this to zero and we divide by it.
> Introduce sanity checking.
> 
> Reported-and-tested-by:  syzbot+6102c120be558c885f04@...kaller.appspotmail.com
> Signed-off-by: Oliver Neukum <oneukum@...e.com>

Applied and queued up for -stable.