From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ipmail07.adl2.internode.on.net ([150.101.137.131]:1105 "EHLO ipmail07.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727179AbeJEM1q (ORCPT ); Fri, 5 Oct 2018 08:27:46 -0400 Date: Fri, 5 Oct 2018 15:30:38 +1000 From: Dave Chinner To: "Darrick J. Wong" Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, ocfs2-devel@oss.oracle.com, sandeen@redhat.com Subject: Re: [PATCH 04/15] xfs: update ctime and remove suid before cloning files Message-ID: <20181005053038.GD12041@dastard> References: <153870027422.29072.7433543674436957232.stgit@magnolia> <153870030069.29072.11055871953561649172.stgit@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <153870030069.29072.11055871953561649172.stgit@magnolia> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Thu, Oct 04, 2018 at 05:45:00PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong > > Before cloning into a file, update the ctime and remove sensitive > attributes like suid, just like we'd do for a regular file write. > > Signed-off-by: Darrick J. Wong > --- > fs/xfs/xfs_reflink.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) Looks good. Reviewed-by: Dave Chinner Because this fixes a security related problem, I'm going to push this with the data corruption fixes. Cheers, Dave. -- Dave Chinner david@fromorbit.com