Paolo Abeni <pabeni@xxxxxxxxxx> wrote: > diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c > index 99f5e51d5ca4..b8095b8df71d 100644 > --- a/net/mptcp/protocol.c > +++ b/net/mptcp/protocol.c > @@ -3085,7 +3085,10 @@ struct sock *mptcp_sk_clone(const struct sock *sk, > /* will be fully established after successful MPC subflow creation */ > inet_sk_state_store(nsk, TCP_SYN_RECV); > > - security_inet_csk_clone(nsk, req); > + /* let's the new socket inherit the security label from the msk > + * listener, as the TCP reqest socket carries a kernel context > + */ > + security_sock_graft(nsk, sk->sk_socket); > bh_unlock_sock(nsk); FWIW this makes Ondrejs test case work: before: mptcp successfully enabled on unit /usr/lib/systemd/system/nginx.service % Total % Received % Xferd Average Speed Time Time Time % Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 curl: (52) Empty reply from server With above change: mptcp successfully enabled on unit /usr/lib/systemd/system/nginx.service % Total % Received % Xferd Average Speed Time Time Time % Current Dload Upload Total Spent Left Speed 100 5 100 5 0 0 1770 0 --:--:-- --:--:-- --:--:-- 5000
