qiurui
/
Centos-kernel-stream-9
mirror of https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
Centos-kernel-stream-9/fs/configfs
History
Andrey Albershteyn 87a1dc4062 fsnotify: fix fsnotify hooks in pseudo filesystems 
Bugzilla: http://bugzilla.redhat.com/2090079

commit 29044dae2e746949ad4b9cbdbfb248994d1dcdb4
Author: Amir Goldstein <amir73il@gmail.com>
Date:   Thu Jan 20 23:53:05 2022 +0200

    fsnotify: fix fsnotify hooks in pseudo filesystems

    Commit 49246466a9 ("fsnotify: move fsnotify_nameremove() hook out of
    d_delete()") moved the fsnotify delete hook before d_delete() so fsnotify
    will have access to a positive dentry.

    This allowed a race where opening the deleted file via cached dentry
    is now possible after receiving the IN_DELETE event.

    To fix the regression in pseudo filesystems, convert d_delete() calls
    to d_drop() (see commit 46c46f8df9 ("devpts_pty_kill(): don't bother
    with d_delete()") and move the fsnotify hook after d_drop().

    Add a missing fsnotify_unlink() hook in nfsdfs that was found during
    the audit of fsnotify hooks in pseudo filesystems.

    Note that the fsnotify hooks in simple_recursive_removal() follow
    d_invalidate(), so they require no change.

    Link: https://lore.kernel.org/r/20220120215305.282577-2-amir73il@gmail.com
    Reported-by: Ivan Delalande <colona@arista.com>
    Link: https://lore.kernel.org/linux-fsdevel/YeNyzoDM5hP5LtGW@visor/
    Fixes: 49246466a9 ("fsnotify: move fsnotify_nameremove() hook out of d_delete()")
    Cc: stable@vger.kernel.org # v5.3+
    Signed-off-by: Amir Goldstein <amir73il@gmail.com>
    Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
 		2022-10-03 11:41:40 +02:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
configfs_internal.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
dir.c fsnotify: fix fsnotify hooks in pseudo filesystems 2022-10-03 11:41:40 +02:00
file.c configfs: restore the kernel v5.13 text attribute write behavior 2021-08-09 16:56:00 +02:00
inode.c fs: move ramfs_aops to libfs 2021-06-29 10:53:48 -07:00
item.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
mount.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
symlink.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00