diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index a75f7e94b445..65763c29f845 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1180,14 +1180,16 @@ static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
 
 static int rtnl_fill_link_ifmap(struct sk_buff *skb, struct net_device *dev)
 {
-	struct rtnl_link_ifmap map = {
-		.mem_start   = dev->mem_start,
-		.mem_end     = dev->mem_end,
-		.base_addr   = dev->base_addr,
-		.irq         = dev->irq,
-		.dma         = dev->dma,
-		.port        = dev->if_port,
-	};
+	struct rtnl_link_ifmap map;
+
+	memset(&map, 0, sizeof(map));
+	map.mem_start   = dev->mem_start;
+	map.mem_end     = dev->mem_end;
+	map.base_addr   = dev->base_addr;
+	map.irq         = dev->irq;
+	map.dma         = dev->dma;
+	map.port        = dev->if_port;
+
 	if (nla_put(skb, IFLA_MAP, sizeof(map), &map))
 		return -EMSGSIZE;