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 12:02:14 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Greg KH <gregkh@...e.de>
cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, 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>,
	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, 29 Apr 2008, Greg KH wrote:
>
> Hm, that's the way it is in Linus's tree, we should change it there
> first.

Done. It will be commit 6203554207728f43cfb9fd48585cd6500da73d42 when I 
push out (but please point to the original commit that actually adds the 
check: 6203554 just changes from CAP_NET_ADMIN to CAP_SYS_RAWIO and is not 
as important as adding the check in the first place.

(I don't know of anybody who actually really uses capabilities with 
individual bits, so I seriously doubt it matters)

		Linus
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