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From: Zhang Yi <yi.zhang@huawei.com>
To: <linux-ext4@vger.kernel.org>
Cc: <tytso@mit.edu>, <adilger.kernel@dilger.ca>, <jack@suse.cz>,
	<yi.zhang@huawei.com>, <yukuai3@huawei.com>
Subject: [PATCH 0/3] ext4: fix two issue about bdev_try_to_free_page()
Date: Thu, 8 Apr 2021 19:36:15 +0800
Message-ID: <20210408113618.1033785-1-yi.zhang@huawei.com> (raw)

Hi,

This first patch fix a potential filesystem inconsistency problem and
other two fix a use after free problem.

Zhang Yi (3):
  jbd2: protect buffers release with j_checkpoint_mutex
  jbd2: do not free buffers in jbd2_journal_try_to_free_buffers()
  ext4: add rcu to prevent use after free when umount filesystem

 fs/ext4/inode.c       |  6 ++++--
 fs/ext4/super.c       | 41 +++++++++++++++++++++++++++++------------
 fs/jbd2/journal.c     | 30 +++++++++++++++++++++++++++---
 fs/jbd2/transaction.c | 20 ++++++++++----------
 include/linux/jbd2.h  | 11 ++++++++++-
 5 files changed, 80 insertions(+), 28 deletions(-)

-- 
2.25.4


             reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-08 11:36 Zhang Yi [this message]
2021-04-08 11:36 ` [PATCH 1/3] jbd2: protect buffers release with j_checkpoint_mutex Zhang Yi
2021-04-08 13:45   ` Jan Kara
2021-04-08 11:36 ` [PATCH 2/3] jbd2: do not free buffers in jbd2_journal_try_to_free_buffers() Zhang Yi
2021-04-08 11:36 ` [PATCH 3/3] ext4: add rcu to prevent use after free when umount filesystem Zhang Yi
2021-04-08 13:51   ` kernel test robot
2021-04-08 13:56   ` Jan Kara
2021-04-08 14:38     ` Zhang Yi
2021-04-08 14:53       ` Jan Kara

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