diff --git a/net/sched/act_mpls.c b/net/sched/act_mpls.c
index ff47ce4d3968..6b26bdb999d7 100644
--- a/net/sched/act_mpls.c
+++ b/net/sched/act_mpls.c
@@ -134,6 +134,11 @@ static int valid_label(const struct nlattr *attr,
 {
 	const u32 *label = nla_data(attr);
 
+	if (nla_len(attr) != sizeof(*label)) {
+		NL_SET_ERR_MSG_MOD(extack, "Invalid MPLS label length");
+		return -EINVAL;
+	}
+
 	if (*label & ~MPLS_LABEL_MASK || *label == MPLS_LABEL_IMPLNULL) {
 		NL_SET_ERR_MSG_MOD(extack, "MPLS label out of range");
 		return -EINVAL;
@@ -145,7 +150,8 @@ static int valid_label(const struct nlattr *attr,
 static const struct nla_policy mpls_policy[TCA_MPLS_MAX + 1] = {
 	[TCA_MPLS_PARMS]	= NLA_POLICY_EXACT_LEN(sizeof(struct tc_mpls)),
 	[TCA_MPLS_PROTO]	= { .type = NLA_U16 },
-	[TCA_MPLS_LABEL]	= NLA_POLICY_VALIDATE_FN(NLA_U32, valid_label),
+	[TCA_MPLS_LABEL]	= NLA_POLICY_VALIDATE_FN(NLA_BINARY,
+							 valid_label),
 	[TCA_MPLS_TC]		= NLA_POLICY_RANGE(NLA_U8, 0, 7),
 	[TCA_MPLS_TTL]		= NLA_POLICY_MIN(NLA_U8, 1),
 	[TCA_MPLS_BOS]		= NLA_POLICY_RANGE(NLA_U8, 0, 1),