From e730c15519d09ea528b4d2f1103681fa5937c0e6 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 17 Sep 2007 11:53:39 -0700 Subject: [NET]: Make packet reception network namespace safe This patch modifies every packet receive function registered with dev_add_pack() to drop packets if they are not from the initial network namespace. This should ensure that the various network stacks do not receive packets in a anything but the initial network namespace until the code has been converted and is ready for them. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller --- net/econet/af_econet.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/econet') diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index a2429dbcb86e..7de3006af206 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -1065,6 +1065,9 @@ static int econet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet struct sock *sk; struct ec_device *edev = dev->ec_ptr; + if (dev->nd_net != &init_net) + goto drop; + if (skb->pkt_type == PACKET_OTHERHOST) goto drop; -- cgit v1.2.3-59-g8ed1b