[0/3] xfs: random SWAPEXT fixes

Message ID	158864100980.182577.10199078041909350877.stgit@magnolia (mailing list archive)
Headers	show Return-Path: <SRS0=NnDK=6T=vger.kernel.org=linux-xfs-owner@kernel.org> Subject: [PATCH 0/3] xfs: random SWAPEXT fixes From: "Darrick J. Wong" <darrick.wong@oracle.com> To: darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org Date: Mon, 04 May 2020 18:10:09 -0700 Message-ID: <158864100980.182577.10199078041909350877.stgit@magnolia> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk
Series	xfs: random SWAPEXT fixes \| expand [0/3] xfs: random SWAPEXT fixes [1/3] xfs: clean up the error handling in xfs_swap_extents [2/3] xfs: clean up the metadata validation in xfs_swap_extent_rmap [3/3] xfs: actually account for quota changes in xfs_swap_extents

Message ID

158864100980.182577.10199078041909350877.stgit@magnolia (mailing list archive)

Headers

Subject: [PATCH 0/3] xfs: random SWAPEXT fixes
From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org
Date: Mon, 04 May 2020 18:10:09 -0700
Message-ID: <158864100980.182577.10199078041909350877.stgit@magnolia>
User-Agent: StGit/0.19
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Sender: linux-xfs-owner@vger.kernel.org
Precedence: bulk

Series

xfs: random SWAPEXT fixes | expand

Message

Darrick J. Wong May 5, 2020, 1:10 a.m. UTC

Hi all,

This series fixes some problems I found in the extent swap code.  The
first patch makes sure we drop the inode lock when cleaning out the COW
fork fails.  The second patch turns some metadata ASSERTs into a proper
EFSCORRUPTED return.  The third patch teaches swapext to adjust the
quota counts properly, which fixes a bug where unprivileged userspace
can cause the quota counts to be wrong by calling swapext on a pair of
files with different uid/gid/prid.

If you're going to start using this mess, you probably ought to just
pull from my git trees, which are linked below.

This is an extraordinary way to destroy everything.  Enjoy!
Comments and questions are, as always, welcome.

--D

kernel git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=random-fixes

xfsprogs git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=random-fixes

fstests git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=random-fixes