diff --git a/include/uapi/linux/mptcp.h b/include/uapi/linux/mptcp.h
index 00d622121673..926d5de5fd21 100644
--- a/include/uapi/linux/mptcp.h
+++ b/include/uapi/linux/mptcp.h
@@ -88,6 +88,7 @@ enum {
 #define MPTCP_PM_ADDR_FLAG_BACKUP			(1 << 2)
 #define MPTCP_PM_ADDR_FLAG_FULLMESH			(1 << 3)
 #define MPTCP_PM_ADDR_FLAG_IMPLICIT			(1 << 4)
+#define MPTCP_PM_ADDR_FLAGS_MASK			GENMASK(4, 0)
 
 enum {
 	MPTCP_PM_CMD_UNSPEC,
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 8dbe826555d2..9f25cfd96f98 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1435,7 +1435,8 @@ int mptcp_pm_parse_entry(struct nlattr *attr, struct genl_info *info,
 	}
 
 	if (tb[MPTCP_PM_ADDR_ATTR_FLAGS])
-		entry->flags = nla_get_u32(tb[MPTCP_PM_ADDR_ATTR_FLAGS]);
+		entry->flags = nla_get_u32(tb[MPTCP_PM_ADDR_ATTR_FLAGS]) &
+			       MPTCP_PM_ADDR_FLAGS_MASK;
 
 	if (tb[MPTCP_PM_ADDR_ATTR_PORT])
 		entry->addr.port = htons(nla_get_u16(tb[MPTCP_PM_ADDR_ATTR_PORT]));