Amir Goldstein 87d7ccbf09 fanotify: fix logic of events on child ... commit 54a307ba8d upstream. When event on child inodes are sent to the parent inode mark and parent inode mark was not marked with FAN_EVENT_ON_CHILD, the event will not be delivered to the listener process. However, if the same process also has a mount mark, the event to the parent inode will be delivered regadless of the mount mark mask. This behavior is incorrect in the case where the mount mark mask does not contain the specific event type. For example, the process adds a mark on a directory with mask FAN_MODIFY (without FAN_EVENT_ON_CHILD) and a mount mark with mask FAN_CLOSE_NOWRITE (without FAN_ONDIR). A modify event on a file inside that directory (and inside that mount) should not create a FAN_MODIFY event, because neither of the marks requested to get that event on the file. Fixes: 1968f5eed5 ("fanotify: use both marks when possible") Cc: stable <stable@vger.kernel.org> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> [natechancellor: Fix small conflict due to lack of 3cd5eca8d7] Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-04-24 09:32:11 +02:00
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dnotify	fsnotify: get rid of fsnotify_destroy_mark_locked()	2015-09-04 16:54:41 -07:00
fanotify	fanotify: fix logic of events on child	2018-04-24 09:32:11 +02:00
inotify	inotify: actually check for invalid bits in sys_inotify_add_watch()	2015-11-05 19:34:48 -08:00
fdinfo.c	inotify: hide internal kernel bits from fdinfo	2015-11-05 19:34:48 -08:00
fdinfo.h	fs: Convert show_fdinfo functions to void	2014-11-05 14:13:23 -05:00
fsnotify.c	dentry name snapshots	2017-08-06 19:19:42 -07:00
fsnotify.h	fsnotify: remove mark->free_list	2015-09-04 16:54:41 -07:00
group.c	fsnotify: add a way to stop queueing events on group shutdown	2016-09-30 10:18:37 +02:00
inode_mark.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-09-05 20:34:28 -07:00
Kconfig	rcu: Make SRCU optional by using CONFIG_SRCU	2015-01-06 11:04:29 -08:00
Makefile	fs, notify: add procfs fdinfo helper	2012-12-17 17:15:28 -08:00
mark.c	fsnotify: get rid of fsnotify_destroy_mark_locked()	2015-09-04 16:54:41 -07:00
notification.c	fanotify: fix list corruption in fanotify_get_response()	2016-09-30 10:18:37 +02:00
vfsmount_mark.c	fsnotify: remove mark->free_list	2015-09-04 16:54:41 -07:00