From: Mike Manning Date: Mon, 20 May 2019 18:57:17 +0000 (+0100) Subject: ipv6: Consider sk_bound_dev_if when binding a raw socket to an address X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=72f7cfab6f93a8ea825fab8ccfb016d064269f7f;p=openwrt%2Fstaging%2Fblogic.git ipv6: Consider sk_bound_dev_if when binding a raw socket to an address IPv6 does not consider if the socket is bound to a device when binding to an address. The result is that a socket can be bound to eth0 and then bound to the address of eth1. If the device is a VRF, the result is that a socket can only be bound to an address in the default VRF. Resolve by considering the device if sk_bound_dev_if is set. Signed-off-by: Mike Manning Reviewed-by: David Ahern Tested-by: David Ahern Signed-off-by: David S. Miller --- diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 84dbe21b71e5..96a3559f2a09 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -287,7 +287,9 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) /* Binding to link-local address requires an interface */ if (!sk->sk_bound_dev_if) goto out_unlock; + } + if (sk->sk_bound_dev_if) { err = -ENODEV; dev = dev_get_by_index_rcu(sock_net(sk), sk->sk_bound_dev_if);