netdev - Re: [PATCH net] tun/tap: sanitize TUNSETSNDBUF input

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Message-Id: <20171101.205334.528454363401742419.davem@davemloft.net>
Date:   Wed, 01 Nov 2017 20:53:34 +0900 (KST)
From:   David Miller <davem@...emloft.net>
To:     kraigatgoog@...il.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net] tun/tap: sanitize TUNSETSNDBUF input

From: Craig Gallek <kraigatgoog@...il.com>
Date: Mon, 30 Oct 2017 18:50:11 -0400

> From: Craig Gallek <kraig@...gle.com>
> 
> Syzkaller found several variants of the lockup below by setting negative
> values with the TUNSETSNDBUF ioctl.  This patch adds a sanity check
> to both the tun and tap versions of this ioctl.
 ...
> Fixes: 33dccbb050bb ("tun: Limit amount of queued packets per device")
> Fixes: 20d29d7a916a ("net: macvtap driver")
> Signed-off-by: Craig Gallek <kraig@...gle.com>

Applied and queued up for -stable, thanks.