Commit 0b7f22aa authored Jul 11, 2005 by Olaf Kirch Committed by David S. Miller Jul 11, 2005

[IPV4]: Prevent oops when printing martian source



In some cases, we may be generating packets with a source address that
qualifies as martian. This can happen when we're in the middle of setting
up the network, and netfilter decides to reject a packet with an RST.
The IPv4 routing code would try to print a warning and oops, because
locally generated packets do not have a valid skb->mac.raw pointer
at this point.

Signed-off-by: David S. Miller <davem@davemloft.net>

parent af9debd4

net/ipv4/route.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1685,7 +1685,7 @@ static void ip_handle_martian_source(struct net_device *dev,
		printk(KERN_WARNING "martian source %u.%u.%u.%u from "
		"%u.%u.%u.%u, on dev %s\n",
		NIPQUAD(daddr), NIPQUAD(saddr), dev->name);
		if (dev->hard_header_len) {
		if (dev->hard_header_len && skb->mac.raw) {
		int i;
		unsigned char *p = skb->mac.raw;
		printk(KERN_WARNING "ll header: ");