diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 5502998aace74157320efed71faf40afd196fac4..02f3bf53363f72c43469b597132fe50c7184cb18 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -356,7 +356,7 @@ static const struct nla_policy flow_policy[TCA_FLOW_MAX + 1] = {
        [TCA_FLOW_KEYS]         = { .type = NLA_U32 },
        [TCA_FLOW_MODE]         = { .type = NLA_U32 },
        [TCA_FLOW_BASECLASS]    = { .type = NLA_U32 },
-       [TCA_FLOW_RSHIFT]       = { .type = NLA_U32 },
+       [TCA_FLOW_RSHIFT]       = NLA_POLICY_MAX(NLA_U32, 31),
        [TCA_FLOW_ADDEND]       = { .type = NLA_U32 },
        [TCA_FLOW_MASK]         = { .type = NLA_U32 },
        [TCA_FLOW_XOR]          = { .type = NLA_U32 },