linux-kernel - Re: [27/37] tehuti: move ioctl perm check closer to function start (CVE-2008-1675)

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Date:	Tue, 29 Apr 2008 11:55:43 -0700
From:	Greg KH <gregkh@...e.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org, stable@...nel.org,
	Justin Forbes <jmforbes@...uxtx.org>,
	Zwane Mwaikambo <zwane@....linux.org.uk>,
	Theodore Ts'o <tytso@....edu>,
	Randy Dunlap <rdunlap@...otime.net>,
	Dave Jones <davej@...hat.com>,
	Chuck Wolber <chuckw@...ntumlinux.com>,
	Chris Wedgwood <reviews@...cw.f00f.org>,
	Michael Krufky <mkrufky@...uxtv.org>,
	Chuck Ebbert <cebbert@...hat.com>,
	Domenico Andreoli <cavokz@...il.com>,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	Jeff Garzik <jgarzik@...hat.com>
Subject: Re: [27/37] tehuti: move ioctl perm check closer to function start
	(CVE-2008-1675)

On Tue, Apr 29, 2008 at 07:13:09PM +0100, Alan Cox wrote:
> On Tue, 29 Apr 2008 10:19:01 -0700
> Greg KH <gregkh@...e.de> wrote:
> 
> > 2.6.25-stable review patch.  If anyone has any objections, please let us
> > know.
> > 
> > ------------------
> > From: Jeff Garzik <jeff@...zik.org>
> > 
> > Commit f946dffed6334f08da065a89ed65026ebf8b33b4 upstream
> > 
> > Noticed by davem.
> > 
> > Signed-off-by: Jeff Garzik <jgarzik@...hat.com>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
> > 
> > ---
> >  drivers/net/tehuti.c |    5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > --- a/drivers/net/tehuti.c
> > +++ b/drivers/net/tehuti.c
> > @@ -649,6 +649,9 @@ static int bdx_ioctl_priv(struct net_dev
> >  		DBG("%d 0x%x 0x%x\n", data[0], data[1], data[2]);
> >  	}
> >  
> > +	if (!capable(CAP_NET_ADMIN))
> > +		return -EPERM;
> > +
> 
> Should be CAP_SYS_RAWIO

Hm, that's the way it is in Linus's tree, we should change it there
first.

thanks,

greg k-h
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