linux-kernel - [PATCH 0/2 v2] ceph: fix the use-after-free bug for file

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Date:   Mon, 14 Nov 2022 13:18:59 +0800
From:   xiubli@...hat.com
To:     ceph-devel@...r.kernel.org, jlayton@...nel.org, idryomov@...il.com,
        viro@...iv.linux.org.uk
Cc:     lhenriques@...e.de, mchangir@...hat.com,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Xiubo Li <xiubli@...hat.com>
Subject: [PATCH 0/2 v2] ceph: fix the use-after-free bug for file_lock

From: Xiubo Li <xiubli@...hat.com>

Changed in V2:
- switch to file_lock.fl_u to fix the race bug
- and the most code will be in the ceph layer

Xiubo Li (2):
  ceph: add ceph_lock_info support for file_lock
  ceph: use a xarray to record all the opened files for each inode

 fs/ceph/file.c                  |  9 +++++++++
 fs/ceph/inode.c                 |  4 ++++
 fs/ceph/locks.c                 | 35 +++++++++++++++++++++++++++++----
 fs/ceph/super.h                 |  4 ++++
 include/linux/ceph/ceph_fs_fl.h | 26 ++++++++++++++++++++++++
 include/linux/fs.h              |  2 ++
 6 files changed, 76 insertions(+), 4 deletions(-)
 create mode 100644 include/linux/ceph/ceph_fs_fl.h

-- 
2.31.1