Ensure FMODE_NONOTIFY is not set by userspace
In fsnotify_open() ensure that FMODE_NONOTIFY is never set by userspace.
Also always call fsnotify_parent and fsnotify.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index ecb43b3..5c185fa 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -235,10 +235,11 @@
if (S_ISDIR(inode->i_mode))
mask |= FS_ISDIR;
- if (!(file->f_mode & FMODE_NONOTIFY)) {
- fsnotify_parent(path, NULL, mask);
- fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
- }
+ /* FMODE_NONOTIFY must never be set from user */
+ file->f_mode &= ~FMODE_NONOTIFY;
+
+ fsnotify_parent(path, NULL, mask);
+ fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
}
/*