linux-kernel - Re: [PATCH RFC] tun: add ioctl to modify vnet header size

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Message-ID: <OF526018DA.E6922CE9-ON882576E9.0073CB01-882576E9.007449E0@us.ibm.com>
Date:	Wed, 17 Mar 2010 14:10:11 -0700
From:	David Stevens <dlstevens@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	David Woodhouse <David.Woodhouse@...el.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	linux-kernel@...r.kernel.org,
	"Michael S. Tsirkin" <mst@...hat.com>, netdev@...r.kernel.org,
	Paul Moore <paul.moore@...com>, sri@...ux.vnet.ibm.com
Subject: Re: [PATCH RFC] tun: add ioctl to modify vnet header size

Shouldn't we enforce a maximum too? Esp. if overflow/underflow
will break any of the checks when it's used.

                                +-DLS

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