On 5/20/19 12:57 PM, Mike Manning wrote:
> 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 <mmann...@vyatta.att-mail.com>
> ---
> net/ipv6/raw.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> 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);
>
Reviewed-by: David Ahern <dsah...@gmail.com>
Tested-by: David Ahern <dsah...@gmail.com>
