Commit 5a5a3e56 authored by YueHaibing's avatar YueHaibing Committed by Paolo Abeni
Browse files

ravb: Fix potential use-after-free in ravb_rx_gbeth() 



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

Fixes: 1c59eb67 ("ravb: Fillup ravb_rx_gbeth() stub")
Signed-off-by: default avatarYueHaibing <yuehaibing@huawei.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20221203092941.10880-1-yuehaibing@huawei.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 7b8232bd

drivers/net/ethernet/renesas/ravb_main.c

+1 −1
Original line number Diff line number Diff line
@@ -841,7 +841,7 @@ static bool ravb_rx_gbeth(struct net_device *ndev, int *quota, int q) 
				napi_gro_receive(&priv->napi[q],

						 priv->rx_1st_skb);

				stats->rx_packets++;

				stats->rx_bytes += priv->rx_1st_skb->len;

				stats->rx_bytes += pkt_len;

				break;

			}

		}