See the following rule....see the last line
rule is from OBR.
Rule 7.08(e) Comment: PLAY. Runner on first and three balls on batter: Runner steals on the next pitch, which is fourth ball, but after having touched second he overslides or overruns that base. Catcher’s throw catches him before he can return. Ruling is that runner is out. (Force out is removed.)
Oversliding and overrunning situations arise at bases other than first base. For instance, before two are out, and runners on first and second, or first, second and third, the ball is hit to an infielder who tries for the double play. The runner on first beats the throw to second base but overslides the base. The relay is made to first base and the batter-runner is out. The first baseman, seeing the runner at second base off the bag, makes the return throw to second and the runner is tagged off the base. Meanwhile runners have crossed the plate. The question is: Is this a force play? Was the force removed when the batter-runner was out at first base? Do the runs that crossed the plate during this play and before the third out was made when the runner was tagged at second, count? Answer: The runs score. It is not a force play. It is a tag play.
(f) He is touched by a fair ball in fair territory before the ball has touched or passed an infielder. The ball is dead and no runner may score, nor runners advance, except runners forced to advance. EXCEPTION: If a runner is touching his base when touched by an Infield Fly, he is not out, although the batter is out;
Rule 7.08(f) Comment: If two runners are touched by the same fair ball, only the first one is out because the ball is instantly dead.
If runner is touched by an Infield Fly when he is not touching his base, both runner and batter are out.