diff --git a/target/linux/generic/pending-6.6/742-net-ethernet-mtk_eth_soc-fix-tx-vlan-tag-for-llc-pac.patch b/target/linux/generic/pending-6.6/742-net-ethernet-mtk_eth_soc-fix-tx-vlan-tag-for-llc-pac.patch
new file mode 100644
index 0000000000..4876d858fd
--- /dev/null
+++ b/target/linux/generic/pending-6.6/742-net-ethernet-mtk_eth_soc-fix-tx-vlan-tag-for-llc-pac.patch
@@ -0,0 +1,39 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sun, 31 Aug 2025 20:05:13 +0200
+Subject: [PATCH] net: ethernet: mtk_eth_soc: fix tx vlan tag for llc packets
+
+When sending llc packets with vlan tx offload, the hardware fails to
+actually add the tag. Deal with this by fixing it up in software.
+
+Fixes: 656e705243fd ("net-next: mediatek: add support for MT7623 ethernet")
+Reported-by: Thibaut VARENE <hacks@slashdirt.org>
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -1763,6 +1763,13 @@ static netdev_tx_t mtk_start_xmit(struct
+ 	bool gso = false;
+ 	int tx_num;
+ 
++	if (skb_vlan_tag_present(skb) &&
++	    !eth_proto_is_802_3(eth_hdr(skb)->h_proto)) {
++		skb = __vlan_hwaccel_push_inside(skb);
++		if (!skb)
++			goto dropped;
++	}
++
+ 	/* normally we can rely on the stack not calling this more than once,
+ 	 * however we have 2 queues running on the same ring so we need to lock
+ 	 * the ring access
+@@ -1826,8 +1833,9 @@ static netdev_tx_t mtk_start_xmit(struct
+ 
+ drop:
+ 	spin_unlock(&eth->page_lock);
+-	stats->tx_dropped++;
+ 	dev_kfree_skb_any(skb);
++dropped:
++	stats->tx_dropped++;
+ 	return NETDEV_TX_OK;
+ }
+