From: Zhang Changzhong <zhangchangzhong@huawei.com>
To: Andreas Larsson <andreas@gaisler.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Kristoffer Glembo <kristoffer@gaisler.com>
Cc: Zhang Changzhong <zhangchangzhong@huawei.com>,
<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH net] ethernet: aeroflex: fix potential skb leak in greth_init_rings()
Date: Sun, 4 Dec 2022 14:09:08 +0800 [thread overview]
Message-ID: <1670134149-29516-1-git-send-email-zhangchangzhong@huawei.com> (raw)
The greth_init_rings() function won't free the newly allocated skb when
dma_mapping_error() returns error, so add dev_kfree_skb() to fix it.
Compile tested only.
Fixes: d4c41139df6e ("net: Add Aeroflex Gaisler 10/100/1G Ethernet MAC driver")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
---
drivers/net/ethernet/aeroflex/greth.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c
index e104fb0..aa0d2f3 100644
--- a/drivers/net/ethernet/aeroflex/greth.c
+++ b/drivers/net/ethernet/aeroflex/greth.c
@@ -258,6 +258,7 @@ static int greth_init_rings(struct greth_private *greth)
if (dma_mapping_error(greth->dev, dma_addr)) {
if (netif_msg_ifup(greth))
dev_err(greth->dev, "Could not create initial DMA mapping\n");
+ dev_kfree_skb(skb);
goto cleanup;
}
greth->rx_skbuff[i] = skb;
--
2.9.5
next reply other threads:[~2022-12-04 6:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-04 6:09 Zhang Changzhong [this message]
2022-12-05 7:16 ` [PATCH net] ethernet: aeroflex: fix potential skb leak in greth_init_rings() Leon Romanovsky
2022-12-07 10:50 ` patchwork-bot+netdevbpf
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