linux-kernel - [PATCH net] net: bcmasp: fix potential memory leak in bcmasp

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Message-ID: <20241014145901.48940-1-wanghai38@huawei.com>
Date: Mon, 14 Oct 2024 22:59:01 +0800
From: Wang Hai <wanghai38@...wei.com>
To: <justin.chen@...adcom.com>, <florian.fainelli@...adcom.com>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <horms@...nel.org>, <zhangxiaoxu5@...wei.com>
CC: <bcm-kernel-feedback-list@...adcom.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <wanghai38@...wei.com>
Subject: [PATCH net] net: bcmasp: fix potential memory leak in bcmasp_xmit()

The bcmasp_xmit() returns NETDEV_TX_OK without freeing skb
in case of mapping fails, add dev_kfree_skb() to fix it.

Fixes: 490cb412007d ("net: bcmasp: Add support for ASP2.0 Ethernet controller")
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
index 82768b0e9026..9ea16ef4139d 100644
--- a/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
@@ -322,6 +322,7 @@ static netdev_tx_t bcmasp_xmit(struct sk_buff *skb, struct net_device *dev)
 			}
 			/* Rewind so we do not have a hole */
 			spb_index = intf->tx_spb_index;
+			dev_kfree_skb(skb);
 			return NETDEV_TX_OK;
 		}
 
-- 
2.17.1