diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 117ed90c5f21..fb99872ef426 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -706,7 +706,7 @@ static int fq_change(struct Qdisc *sch, struct nlattr *opt)
 	if (tb[TCA_FQ_QUANTUM]) {
 		u32 quantum = nla_get_u32(tb[TCA_FQ_QUANTUM]);
 
-		if (quantum > 0)
+		if (quantum > 0 && quantum <= (1 << 20))
 			q->quantum = quantum;
 		else
 			err = -EINVAL;