Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762613AbXEWKyC (ORCPT ); Wed, 23 May 2007 06:54:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758660AbXEWKxy (ORCPT ); Wed, 23 May 2007 06:53:54 -0400 Received: from ppsw-7.csi.cam.ac.uk ([131.111.8.137]:60194 "EHLO ppsw-7.csi.cam.ac.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758439AbXEWKxx (ORCPT ); Wed, 23 May 2007 06:53:53 -0400 X-Cam-SpamDetails: Not scanned X-Cam-AntiVirus: No virus found X-Cam-ScannerInfo: http://www.cam.ac.uk/cs/email/scanner/ In-Reply-To: <4cefeab80705230127r58e8f9e1sa644092e95eb81eb@mail.gmail.com> References: <4cefeab80705230127r58e8f9e1sa644092e95eb81eb@mail.gmail.com> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <0F6CEFD7-86F2-4903-B4F7-F723DF88BE9A@cam.ac.uk> Cc: linux-kernel@vger.kernel.org, "Richard Purdie" , linux-mm-cc@laptop.org Content-Transfer-Encoding: 7bit From: Michael-Luke Jones Subject: Re: [RFC] LZO de/compression support - take 3 Date: Wed, 23 May 2007 11:53:37 +0100 To: Nitin Gupta X-Mailer: Apple Mail (2.752.2) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1046 Lines: 25 On 23 May 2007, at 09:27, Nitin Gupta wrote: > This contains LZO1X-1 compressor and LZO1X decompressor (safe and > standard version). I understand that the 'safe' decompression code is 'somewhat slower' and that decompressor performance is a key feature of this algorithm. However, I am concerned about the safety implications of including the 'unsafe' standard version in-kernel when likely uses include compression of network data, memory objects and so-on, all of which could in theory be maliciously modified. I'm no kernel or programming expert, so I may be off the mark with this one. To me, at least, even if the answer is 'no, there isn't a problem' that's still a valuable clarification :) Thanks, Michael-Luke Jones [please cc me on replies as I am not subscribed to lkml] - 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/