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Commit 39174291 authored by françois romieu's avatar françois romieu Committed by David S. Miller
Browse files

r8169: fix kasan reported skb use-after-free. 



Signed-off-by: default avatarFrancois Romieu <romieu@fr.zoreil.com>
Reported-by: default avatarDave Jones <davej@codemonkey.org.uk>
Fixes: d7d2d89d ("r8169: Add software counter for multicast packages")
Acked-by: default avatarEric Dumazet <edumazet@google.com>
Acked-by: default avatarCorinna Vinschen <vinschen@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c5a37883

drivers/net/ethernet/realtek/r8169.c

+3 −3
Original line number Diff line number Diff line
@@ -7429,15 +7429,15 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget 


			rtl8169_rx_vlan_tag(desc, skb);



			if (skb->pkt_type == PACKET_MULTICAST)

				dev->stats.multicast++;



			napi_gro_receive(&tp->napi, skb);



			u64_stats_update_begin(&tp->rx_stats.syncp);

			tp->rx_stats.packets++;

			tp->rx_stats.bytes += pkt_size;

			u64_stats_update_end(&tp->rx_stats.syncp);



			if (skb->pkt_type == PACKET_MULTICAST)

				dev->stats.multicast++;

		}

release_descriptor:

		desc->opts2 = 0;