mbox series

[0/2,v3] ceph: fix the use-after-free bug for file_lock

Message ID 20221118020642.472484-1-xiubli@redhat.com
Headers
Series ceph: fix the use-after-free bug for file_lock |

Message

Xiubo Li Nov. 18, 2022, 2:06 a.m. UTC 
  From: Xiubo Li <xiubli@redhat.com>

Changed in V3:
- switched to vfs_inode_has_locks() helper to fix another ceph file lock
bug, thanks Jeff!
- this patch series is based on Jeff's previous VFS lock patch:
  https://patchwork.kernel.org/project/ceph-devel/list/?series=695950

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: switch to vfs_inode_has_locks() to fix file lock bug
  ceph: add ceph_lock_info support for file_lock

 fs/ceph/caps.c                  |  2 +-
 fs/ceph/locks.c                 | 24 ++++++++++++++++++------
 fs/ceph/super.h                 |  1 -
 include/linux/ceph/ceph_fs_fl.h | 17 +++++++++++++++++
 include/linux/fs.h              |  2 ++
 5 files changed, 38 insertions(+), 8 deletions(-)
 create mode 100644 include/linux/ceph/ceph_fs_fl.h