Re: [PATCH bpf-next v2 3/6] net: remove duplicate reuseport_lookup functions

On Tue, Jun 13, 2023 at 7:57 PM Kuniyuki Iwashima kuniyu@amazon.com wrote:

                    else {
                            result = sk;
                    }

The assignment to result below is buggy. Let's say SO_REUSEPROT group have TCP_CLOSE and TCP_ESTABLISHED sockets.

I'm not very familiar with SO_REUSEPORT, I assumed (incorrectly probably) that such a group would only ever have TCP_CLOSE in UDP case and TCP_LISTENING in TCP case. Can you explain how I could end up in this situation?