diff options
| author | David Ahern <dsahern@gmail.com> | 2019-01-03 05:57:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-06 19:30:06 +0300 |
| commit | 7e9a6476aaf5b03bcebbcc37ae9802f1525d329d (patch) | |
| tree | cb21ff7dae7327b0f56392a3e5595fc8bb1181f5 /net/ipv6 | |
| parent | 8877843b3b9fc736ee722b5f6f677eb449bc48c1 (diff) | |
| download | linux-7e9a6476aaf5b03bcebbcc37ae9802f1525d329d.tar.xz | |
ipv6: Consider sk_bound_dev_if when binding a socket to an address
[ Upstream commit c5ee066333ebc322a24a00a743ed941a0c68617e ]
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.
This problem exists from the beginning of git history.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/af_inet6.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 506b2ae07bb3..79fcd9550fd2 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -361,6 +361,9 @@ static int __inet6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len, err = -EINVAL; goto out_unlock; } + } + + if (sk->sk_bound_dev_if) { dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if); if (!dev) { err = -ENODEV; |