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

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Message-ID: <20100317213504.GA7433@redhat.com>
Date:	Wed, 17 Mar 2010 23:35:04 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	David Stevens <dlstevens@...ibm.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, 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

On Wed, Mar 17, 2010 at 02:10:11PM -0700, David Stevens wrote:
> Shouldn't we enforce a maximum too? Esp. if overflow/underflow
> will break any of the checks when it's used.
> 
>                                 +-DLS

So the maximum is MAX_INT :)
I don't think it can break any checks that aren't
already broken - what do you have in mind?


-- 
MST
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