linux-kernel - [PATCH net] net/qla3xxx: fix potential memleak in ql3xxx

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Message-ID: <1668675039-21138-1-git-send-email-zhangchangzhong@huawei.com>
Date:   Thu, 17 Nov 2022 16:50:38 +0800
From:   Zhang Changzhong <zhangchangzhong@...wei.com>
To:     <GR-Linux-NIC-Dev@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        "Paolo Abeni" <pabeni@...hat.com>, Jeff Garzik <jeff@...zik.org>,
        Ron Mercer <ron.mercer@...gic.com>
CC:     Zhang Changzhong <zhangchangzhong@...wei.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH net] net/qla3xxx: fix potential memleak in ql3xxx_send()

The ql3xxx_send() returns NETDEV_TX_OK without freeing skb in error
handling case, add dev_kfree_skb_any() to fix it.

Fixes: bd36b0ac5d06 ("qla3xxx: Add support for Qlogic 4032 chip.")
Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>
---
 drivers/net/ethernet/qlogic/qla3xxx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index 76072f8..0d57ffc 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -2471,6 +2471,7 @@ static netdev_tx_t ql3xxx_send(struct sk_buff *skb,
 					     skb_shinfo(skb)->nr_frags);
 	if (tx_cb->seg_count == -1) {
 		netdev_err(ndev, "%s: invalid segment count!\n", __func__);
+		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}
 
-- 
2.9.5