From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754228Ab1ISTqj (ORCPT ); Mon, 19 Sep 2011 15:46:39 -0400 Received: from lennier.cc.vt.edu ([198.82.162.213]:43495 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751216Ab1ISTqi (ORCPT ); Mon, 19 Sep 2011 15:46:38 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.3-dev To: Vasiliy Kulikov Cc: Pekka Enberg , Andrew Morton , kernel-hardening@lists.openwall.com, Kees Cook , Cyrill Gorcunov , Al Viro , Christoph Lameter , Matt Mackall , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Dan Rosenberg , Theodore Tso , Alan Cox , Jesper Juhl , Linus Torvalds Subject: Re: [kernel-hardening] Re: [RFC PATCH 2/2] mm: restrict access to /proc/slabinfo In-Reply-To: Your message of "Mon, 19 Sep 2011 18:46:58 +0400." <20110919144657.GA5928@albatros> From: Valdis.Kletnieks@vt.edu References: <20110910164001.GA2342@albatros> <20110910164134.GA2442@albatros> <20110914192744.GC4529@outflux.net> <20110918170512.GA2351@albatros> <20110919144657.GA5928@albatros> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1316461507_2864P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Mon, 19 Sep 2011 15:45:07 -0400 Message-ID: <14082.1316461507@turing-police.cc.vt.edu> X-Mirapoint-Received-SPF: 198.82.161.152 auth3.smtp.vt.edu Valdis.Kletnieks@vt.edu 2 pass X-Junkmail-Status: score=10/50, host=dagger.cc.vt.edu X-Junkmail-Signature-Raw: score=unknown, refid=str=0001.0A020201.4E779BC7.0075,ss=1,fgs=0, ip=0.0.0.0, so=2010-07-22 22:03:31, dmn=2009-09-10 00:05:08, mode=single engine X-Junkmail-IWF: false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1316461507_2864P Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable On Mon, 19 Sep 2011 18:46:58 +0400, Vasiliy Kulikov said: > One note: only to _kernel_ developers. It means it is a strictly > debugging feature, which shouldn't be enabled in the production systems= . Until somebody at vendor support says =22What does 'cat /proc/slabinfo' s= ay?=22 Anybody who thinks that debugging tools should be totally disabled on =22production=22 systems probably hasn't spent enough time actually running production systems. --==_Exmh_1316461507_2864P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFOd5vDcC3lWbTT17ARAh7JAJwMrRQz4C7zYTO1eHMgucfJzL+1lgCgsuqQ L4CmG5Vw1ZZf07jYmk/uoDQ= =YcTW -----END PGP SIGNATURE----- --==_Exmh_1316461507_2864P--