From b962252bba7e01f2a6c5d12cc67f4870608d5a4f Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Tue, 8 Feb 2022 21:12:30 +0800
Subject: [PATCH] mt76: mt7915: fix potential memory leak of fw monitor packets
Git-commit: b962252bba7e01f2a6c5d12cc67f4870608d5a4f
Patch-mainline: v5.18-rc1
References: bsc#1209980

Free the skb of fw monitor packets.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 999fc1f1e7cf..5599e5166deb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -1733,6 +1733,7 @@ void mt7915_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
 		break;
 	case PKT_TYPE_RX_FW_MONITOR:
 		mt7915_debugfs_rx_fw_monitor(dev, skb->data, skb->len);
+		dev_kfree_skb(skb);
 		break;
 	case PKT_TYPE_NORMAL:
 		if (!mt7915_mac_fill_rx(dev, skb)) {
-- 
2.35.3