diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index e55af5c078ac096985c842484a8a81e42bffadda..f37916156ca523556c0266ad50acc2e9036ba0a1 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -149,6 +149,8 @@ static const struct rhashtable_params netlink_rhashtable_params;
 
 static inline u32 netlink_group_mask(u32 group)
 {
+	if (group > 32)
+		return 0;
 	return group ? 1 << (group - 1) : 0;
 }