Jan Kara 5838d4442b fanotify: fix double free of pending permission events ... Commit 8581679424 ("fanotify: Fix use after free for permission events") introduced a double free issue for permission events which are pending in group's notification queue while group is being destroyed. These events are freed from fanotify_handle_event() but they are not removed from groups notification queue and thus they get freed again from fsnotify_flush_notify(). Fix the problem by removing permission events from notification queue before freeing them if we skip processing access response. Also expand comments in fanotify_release() to explain group shutdown in detail. Fixes: 8581679424 Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: Douglas Leeder <douglas.leeder@sophos.com> Tested-by: Douglas Leeder <douglas.leeder@sophos.com> Reported-by: Heinrich Schuchard <xypron.glpk@gmx.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-08-06 18:01:12 -07:00
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dnotify	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
fanotify	fanotify: fix double free of pending permission events	2014-08-06 18:01:12 -07:00
inotify	fsnotify: rename event handling functions	2014-08-06 18:01:12 -07:00
Kconfig	fanotify: allow fanotify to be built	2010-10-28 17:22:13 -04:00
Makefile	fs, notify: add procfs fdinfo helper	2012-12-17 17:15:28 -08:00
fdinfo.c	Merge branch 'for-next' of git://git.infradead.org/users/eparis/notify	2012-12-20 20:11:52 -08:00
fdinfo.h	fs, notify: add procfs fdinfo helper	2012-12-17 17:15:28 -08:00
fsnotify.c	inotify: Fix reporting of cookies for inotify events	2014-02-18 11:17:17 +01:00
fsnotify.h	fsnotify: remove global fsnotify groups lists	2010-07-28 10:18:54 -04:00
group.c	fsnotify: Allocate overflow events with proper type	2014-02-25 11:18:06 +01:00
inode_mark.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
mark.c	fs/notify/mark.c: trivial cleanup	2014-06-04 16:53:52 -07:00
notification.c	fanotify: fix double free of pending permission events	2014-08-06 18:01:12 -07:00
vfsmount_mark.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00