On Tue, 2017-11-28 at 09:48 -0500, David Miller wrote: > From: Eric Dumazet <[email protected]> > Date: Mon, 27 Nov 2017 20:00:52 -0800 > > > @@ -368,9 +368,11 @@ static void __unregister_prot_hook(struct sock > *sk, bool sync) > > __sock_put(sk); > > > > if (sync) { > > + po->frozen = 1; > > spin_unlock(&po->bind_lock); > > synchronize_net(); > > spin_lock(&po->bind_lock); > > + po->frozen = 0; > > } > > } > > > > Ugh. > > Maybe you can just set po->num to zero in the bind code path which > causes > this problem. That will prevent this situation entirely.
Yes, I can submit a V2 with this idea implemented, thanks.
