From: Mike Manning <[email protected]> [ Upstream commit 72f7cfab6f93a8ea825fab8ccfb016d064269f7f ]
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 <[email protected]> Reviewed-by: David Ahern <[email protected]> Tested-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/ipv6/raw.c | 2 ++ 1 file changed, 2 insertions(+) --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -287,7 +287,9 @@ static int rawv6_bind(struct sock *sk, s /* 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);
