提交 433c07a1 编写于 作者: L Liu Jian 提交者: Paolo Abeni

net: hisilicon: Fix potential use-after-free in hix5hd2_rx()

The skb is delivered to napi_gro_receive() which may free it, after
calling this, dereferencing skb may trigger use-after-free.

Fixes: 57c5bc9a ("net: hisilicon: add hix5hd2 mac driver")
Signed-off-by: NLiu Jian <liujian56@huawei.com>
Link: https://lore.kernel.org/r/20221203094240.1240211-2-liujian56@huawei.comSigned-off-by: NPaolo Abeni <pabeni@redhat.com>
上级 cb376176
......@@ -550,7 +550,7 @@ static int hix5hd2_rx(struct net_device *dev, int limit)
skb->protocol = eth_type_trans(skb, dev);
napi_gro_receive(&priv->napi, skb);
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
dev->stats.rx_bytes += len;
next:
pos = dma_ring_incr(pos, RX_DESC_NUM);
}
......
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