From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261381AbVBHBuz (ORCPT ); Mon, 7 Feb 2005 20:50:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261382AbVBHBuz (ORCPT ); Mon, 7 Feb 2005 20:50:55 -0500 Received: from abraham.CS.Berkeley.EDU ([128.32.37.170]:54277 "EHLO abraham.cs.berkeley.edu") by vger.kernel.org with ESMTP id S261381AbVBHBuv (ORCPT ); Mon, 7 Feb 2005 20:50:51 -0500 To: linux-kernel@vger.kernel.org Path: not-for-mail From: daw@taverner.cs.berkeley.edu (David Wagner) Newsgroups: isaac.lists.linux-kernel Subject: Re: [PATCH] BSD Secure Levels: claim block dev in file struct rather than inode struct, 2.6.11-rc2-mm1 (3/8) Date: Tue, 8 Feb 2005 01:48:40 +0000 (UTC) Organization: University of California, Berkeley Distribution: isaac Message-ID: References: <20050207192108.GA776@halcrow.us> <20050207193129.GB834@halcrow.us> <20050207142603.A469@build.pdx.osdl.net> <200502072241.j17MfTfP027969@turing-police.cc.vt.edu> Reply-To: daw-usenet@taverner.cs.berkeley.edu (David Wagner) NNTP-Posting-Host: taverner.cs.berkeley.edu X-Trace: abraham.cs.berkeley.edu 1107827320 3473 128.32.168.222 (8 Feb 2005 01:48:40 GMT) X-Complaints-To: usenet@abraham.cs.berkeley.edu NNTP-Posting-Date: Tue, 8 Feb 2005 01:48:40 +0000 (UTC) X-Newsreader: trn 4.0-test76 (Apr 2, 2001) Originator: daw@taverner.cs.berkeley.edu (David Wagner) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org >For those systems that have everything on one big partition, you can often >do stuff like: > >ln /etc/passwd /tmp/ > >and wait for /etc/passwd to get clobbered by a cron job run by root... How would /etc/passwd get clobbered? Are you thinking that a tmp cleaner run by cron might delete /tmp/whatever (i.e., delete the hardlink you created above)? But deleting /tmp/whatever is safe; it doesn't affect /etc/passwd. I'm guessing I'm probably missing something.