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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: Christoph Hellwig <hch@lst.de>, linux-xfs@vger.kernel.org
Subject: [PATCH v2 00/10] xfs: strengthen log intent validation
Date: Thu, 03 Dec 2020 17:11:34 -0800
Message-ID: <160704429410.734470.15640089119078502938.stgit@magnolia> (raw)

Hi all,

This patchset hoists the code that checks log intent record validation
into separate functions, and reworks them to use the standard field
validation predicates instead of open-coding them.  This strengthens log
recovery against (some) fuzzed log items.

v2: rearrange some of the checks per hch; report intent item corruption

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=fix-recovered-log-intent-validation-5.11
---
 fs/xfs/xfs_bmap_item.c     |   77 +++++++++++++++++++++++++++++---------------
 fs/xfs/xfs_extfree_item.c  |   30 +++++++++++++----
 fs/xfs/xfs_log_recover.c   |    5 ++-
 fs/xfs/xfs_refcount_item.c |   59 ++++++++++++++++++++++------------
 fs/xfs/xfs_rmap_item.c     |   74 ++++++++++++++++++++++++++++--------------
 fs/xfs/xfs_trace.h         |   19 +++++++++++
 6 files changed, 182 insertions(+), 82 deletions(-)


             reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-04  1:11 Darrick J. Wong [this message]
2020-12-04  1:11 ` [PATCH 01/10] xfs: hoist recovered bmap intent checks out of xfs_bui_item_recover Darrick J. Wong
2020-12-04 13:55   ` Brian Foster
2020-12-04  1:11 ` [PATCH 02/10] xfs: improve the code that checks recovered bmap intent items Darrick J. Wong
2020-12-04 13:56   ` Brian Foster
2020-12-04 19:54     ` Darrick J. Wong
2020-12-04  1:11 ` [PATCH 03/10] xfs: hoist recovered rmap intent checks out of xfs_rui_item_recover Darrick J. Wong
2020-12-04 13:59   ` Brian Foster
2020-12-04  1:12 ` [PATCH 04/10] xfs: improve the code that checks recovered rmap intent items Darrick J. Wong
2020-12-04 13:59   ` Brian Foster
2020-12-04  1:12 ` [PATCH 05/10] xfs: hoist recovered refcount intent checks out of xfs_cui_item_recover Darrick J. Wong
2020-12-04 14:00   ` Brian Foster
2020-12-04  1:12 ` [PATCH 06/10] xfs: improve the code that checks recovered refcount intent items Darrick J. Wong
2020-12-04 14:00   ` Brian Foster
2020-12-04  1:12 ` [PATCH 07/10] xfs: hoist recovered extent-free intent checks out of xfs_efi_item_recover Darrick J. Wong
2020-12-04 14:00   ` Brian Foster
2020-12-04  1:12 ` [PATCH 08/10] xfs: improve the code that checks recovered extent-free intent items Darrick J. Wong
2020-12-04 14:00   ` Brian Foster
2020-12-04  1:12 ` [PATCH 09/10] xfs: validate feature support when recovering rmap/refcount/bmap intents Darrick J. Wong
2020-12-04 14:00   ` Brian Foster
2020-12-06 23:08     ` Darrick J. Wong
2020-12-07 14:02       ` Brian Foster
2020-12-07 16:50         ` Darrick J. Wong
2020-12-04  1:12 ` [PATCH 10/10] xfs: trace log intent item recovery failures Darrick J. Wong
2020-12-04 14:00   ` Brian Foster
2020-12-04 19:57     ` Darrick J. Wong

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