ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
[ 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 <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index a4f979f..bfa3dd3 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -283,7 +283,9 @@
/* 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);