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authorLiu Jian <liujian56@huawei.com>2022-12-03 12:42:40 +0300
committerPaolo Abeni <pabeni@redhat.com>2022-12-06 14:53:31 +0300
commit433c07a13f59856e4585e89e86b7d4cc59348fab (patch)
tree131f94b45a2441e2b16f0fae38be40f57226e643 /drivers/net
parentcb37617687f2bfa5b675df7779f869147c9002bd (diff)
downloadlinux-433c07a13f59856e4585e89e86b7d4cc59348fab.tar.xz
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: 57c5bc9ad7d7 ("net: hisilicon: add hix5hd2 mac driver") Signed-off-by: Liu Jian <liujian56@huawei.com> Link: https://lore.kernel.org/r/20221203094240.1240211-2-liujian56@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/hisilicon/hix5hd2_gmac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
index ffcf797dfa90..f867e9531117 100644
--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
@@ -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);
}