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Miklos Szeredi 2f5be98162 fsnotify: fix pinning group in fsnotify_prepare_user_wait() ... commit 9a31d7ad997f55768c687974ce36b759065b49e5 upstream. Blind increment of group's user_waits is not enough, we could be far enough in the group's destruction that it isn't taken into account (i.e. grabbing the mark ref afterwards doesn't guarantee that it was the ref coming from the _group_ that was grabbed). Instead we need to check (under lock) that the mark is still attached to the group after having obtained a ref to the mark. If not, skip it. Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Fixes: 9385a84d7e ("fsnotify: Pass fsnotify_iter_info into handle_event handler") Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		7 years ago
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dnotify	…
fanotify	fanotify: fix fsnotify_prepare_user_wait() failure	7 years ago
inotify	…
Kconfig	…
Makefile	…
fdinfo.c	…
fdinfo.h	…
fsnotify.c	fsnotify: pin both inode and vfsmount mark	7 years ago
fsnotify.h	…
group.c	…
mark.c	fsnotify: fix pinning group in fsnotify_prepare_user_wait()	7 years ago
notification.c	…