diff options
Diffstat (limited to 'net/ipv4/ip_sockglue.c')
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index c7df4969f80a..008be04ac1cc 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -808,6 +808,7 @@ static int do_ip_setsockopt(struct sock *sk, int level, { struct net_device *dev = NULL; int ifindex; + int midx; if (optlen != sizeof(int)) goto e_inval; @@ -823,10 +824,13 @@ static int do_ip_setsockopt(struct sock *sk, int level, err = -EADDRNOTAVAIL; if (!dev) break; + + midx = l3mdev_master_ifindex(dev); dev_put(dev); err = -EINVAL; - if (sk->sk_bound_dev_if) + if (sk->sk_bound_dev_if && + (!midx || midx != sk->sk_bound_dev_if)) break; inet->uc_index = ifindex; |