Commit 53602f92 authored Jul 14, 2006 by Stephen Hemminger Committed by David S. Miller Jul 14, 2006

[IPV4]: Clear skb cb on IP input

when data arrives at IP through loopback (and possibly other devices).
So the field needs to be cleared before it confuses the route code.
This was seen when running netem over loopback, but there are probably
other device cases. Maybe this should go into stable?

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 27b437c8

net/ipv4/ip_input.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -428,6 +428,9 @@ int ip_rcv(struct sk_buff skb, struct net_device dev, struct packet_type *pt,
		goto drop;
		}

		/* Remove any debris in the socket control block */
		memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));

		return NF_HOOK(PF_INET, NF_IP_PRE_ROUTING, skb, dev, NULL,
		ip_rcv_finish);

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