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Date:   Fri, 25 Jun 2021 17:58:54 +0300
From:   Dan Carpenter <dan.carpenter@oracle.com>
To:     Felix Fietkau <nbd@nbd.name>
Cc:     Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>,
        Ryder Lee <ryder.lee@mediatek.com>,
        Kalle Valo <kvalo@codeaurora.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Shayne Chen <shayne.chen@mediatek.com>,
        linux-wireless@vger.kernel.org, linux-mediatek@lists.infradead.org,
        kernel-janitors@vger.kernel.org
Subject: [PATCH] mt76: mt7915: fix info leak in mt7915_mcu_set_pre_cal()
Message-ID: <YNXvLvrvllpXgCIn@mwanda>
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Zero out all the unused members of "req" so that we don't disclose
stack information.

Fixes: 495184ac91bb ("mt76: mt7915: add support for applying pre-calibration data")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 863aa18b3024..21769e4f6bc7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -3481,7 +3481,7 @@ static int mt7915_mcu_set_pre_cal(struct mt7915_dev *dev, u8 idx,
 		u8 idx;
 		u8 rsv[4];
 		__le32 len;
-	} req;
+	} req = {};
 	struct sk_buff *skb;
 
 	skb = mt76_mcu_msg_alloc(&dev->mt76, NULL, sizeof(req) + len);
-- 
2.30.2