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| author | Liu Jian <liujian56@huawei.com> | 2022-12-03 17:42:40 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-14 11:30:47 +0100 |
| commit | 1b6360a093ab8969c91a30bb58b753282e2ced4c (patch) | |
| tree | 393197514622fc383e116e7d1861a05739d0a819 | |
| parent | e71a46cc8c9ad75f3bb0e4b361e81f79c0214cca (diff) | |
| download | linux-stable-1b6360a093ab8969c91a30bb58b753282e2ced4c.tar.gz linux-stable-1b6360a093ab8969c91a30bb58b753282e2ced4c.tar.bz2 linux-stable-1b6360a093ab8969c91a30bb58b753282e2ced4c.zip | |
net: hisilicon: Fix potential use-after-free in hix5hd2_rx()
[ Upstream commit 433c07a13f59856e4585e89e86b7d4cc59348fab ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hix5hd2_gmac.c | 2 |
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 c41b19c760f8..645cae590dc4 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); } |