Otherwise, even loopback communication doesn't work when program is run from non-init_netns. Signed-off-by: Florian Westphal <fw(a)strlen.de&gt; --- Could be squashed with 'mptcp: Make connection_list a real list of subflows'. net/mptcp/protocol.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 1e73e307a6d2..1fbddbcb1164 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -703,12 +703,12 @@ static struct proto mptcp_prot = { static int mptcp_subflow_create(struct sock *sk) { struct mptcp_sock *msk = mptcp_sk(sk); + struct net *net = sock_net(sk); struct socket *sf; int err; pr_debug("msk=%p", msk); - err = sock_create_kern(&init_net, PF_INET, SOCK_STREAM, IPPROTO_TCP, - &sf); + err = sock_create_kern(net, PF_INET, SOCK_STREAM, IPPROTO_TCP, &sf); if (!err) { lock_sock(sf->sk); err = tcp_set_ulp(sf->sk, "mptcp"); -- 2.21.0