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Jan Kara 8f2f3eb59d fsnotify: fix oops in fsnotify_clear_marks_by_group_flags() ... fsnotify_clear_marks_by_group_flags() can race with fsnotify_destroy_marks() so that when fsnotify_destroy_mark_locked() drops mark_mutex, a mark from the list iterated by fsnotify_clear_marks_by_group_flags() can be freed and thus the next entry pointer we have cached may become stale and we dereference free memory. Fix the problem by first moving marks to free to a special private list and then always free the first entry in the special list. This method is safe even when entries from the list can disappear once we drop the lock. Signed-off-by: Jan Kara <jack@suse.com> Reported-by: Ashish Sangwan <a.sangwan@samsung.com> Reviewed-by: Ashish Sangwan <a.sangwan@samsung.com> Cc: Lino Sanfilippo <LinoSanfilippo@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>		10 years ago
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dnotify	…
fanotify	…
inotify	…
Kconfig	…
Makefile	…
fdinfo.c	…
fdinfo.h	…
fsnotify.c	…
fsnotify.h	…
group.c	…
inode_mark.c	…
mark.c	fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()	10 years ago
notification.c	…
vfsmount_mark.c	…