diff --git a/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c b/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
index c8d08a8ad9..c4ea1dfc71 100644
--- a/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
+++ b/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
@@ -1655,7 +1655,7 @@ static int rtl838x_eth_probe(struct platform_device *pdev)
 	const struct rteth_config *matchdata;
 	phy_interface_t phy_mode;
 	struct phylink *phylink;
-	u8 mac_addr[ETH_ALEN];
+	u8 mac_addr[ETH_ALEN] = {0};
 	int err = 0, rxrings, rxringlen;
 	struct ring_b *ring;