Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267582AbUIFH5k (ORCPT ); Mon, 6 Sep 2004 03:57:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267585AbUIFH5k (ORCPT ); Mon, 6 Sep 2004 03:57:40 -0400 Received: from pauli.thundrix.ch ([213.239.201.101]:21929 "EHLO pauli.thundrix.ch") by vger.kernel.org with ESMTP id S267582AbUIFH5S (ORCPT ); Mon, 6 Sep 2004 03:57:18 -0400 Date: Mon, 6 Sep 2004 09:56:03 +0200 From: Tonnerre To: Frank van Maarseveen Cc: Alan Cox , Linus Torvalds , Jamie Lokier , Horst von Brand , Adrian Bunk , Hans Reiser , viro@parcelfarce.linux.theplanet.co.uk, Christoph Hellwig , linux-fsdevel@vger.kernel.org, Linux Kernel Mailing List , Alexander Lyamin aka FLX , ReiserFS List Subject: Re: The argument for fs assistance in handling archives (was: silent semantic changes with reiser4) Message-ID: <20040906075603.GB28697@thundrix.ch> References: <20040826150202.GE5733@mail.shareable.org> <200408282314.i7SNErYv003270@localhost.localdomain> <20040901200806.GC31934@mail.shareable.org> <1094118362.4847.23.camel@localhost.localdomain> <20040902203854.GA4801@janus> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jho1yZJdad60DJr+" Content-Disposition: inline In-Reply-To: <20040902203854.GA4801@janus> X-GPG-KeyID: 0x8BE1C38D X-GPG-Fingerprint: 1AB0 9AD6 D0C8 B9D5 C5C9 9C2A FF86 CBEE 8BE1 C38D X-GPG-KeyURL: http://users.thundrix.ch/~tonnerre/tonnerre.asc User-Agent: Mutt/1.5.6+20040803i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1500 Lines: 62 --jho1yZJdad60DJr+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Salut, On Thu, Sep 02, 2004 at 10:38:54PM +0200, Frank van Maarseveen wrote: > Can it do this: >=20 > cd FC2-i386-disc1.iso > ls >=20 > or this: >=20 > cd /dev/sda1 > ls > cd /dev/floppy > ls > cd /dev/cdrom > ls >=20 > ? Actually I see some small-security-hole-you-can-drive-a-big-yellow-truck-with-flashes-on-through problem. $ cat fs_header owner_root flags_with_suid evil_program > evil.iso $ ls -l evil.iso/evil_program -rwsr-xr-x 1 root root 24 2003-11-09 16:41 evil.iso/evil_p= rogram $ evil.iso/evil_program Mwahaha, I got root! Copy-right violating IP... done. Hijacking administrators wife... done. Overwriting OS with Parachute 2010... done. etc. pp. Tonnerre --jho1yZJdad60DJr+ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.9.2 (GNU/Linux) iD8DBQFBPBgS/4bL7ovhw40RArUPAKCY7/Bo0OfcjFc6hokYGvKhse9dkgCfU67o AZrfoXYMvu4iwhL0APkiQ1E= =e9Wv -----END PGP SIGNATURE----- --jho1yZJdad60DJr+-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/