diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c
index 56f4c1621e44..b76c3d199ca1 100644
--- a/net/sched/sch_fifo.c
+++ b/net/sched/sch_fifo.c
@@ -38,6 +38,9 @@ static int pfifo_tail_enqueue(struct sk_buff *skb, struct Qdisc *sch,
 {
 	unsigned int prev_backlog;
 
+	if (unlikely(READ_ONCE(sch->limit) == 0))
+		return qdisc_drop(skb, sch, to_free);
+
 	if (likely(sch->q.qlen < sch->limit))
 		return qdisc_enqueue_tail(skb, sch);