[lwip-devel] [bug #55219] Closing a TCP server with altcp_tcp_close triggers assert

[Pelle Bergkvist]

URL:
  <https://savannah.nongnu.org/bugs/?55219>

                 Summary: Closing a TCP server with altcp_tcp_close triggers
assert
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: pellebk
            Submitted on: Thu 13 Dec 2018 08:50:24 AM UTC
                Category: TCP
                Severity: 3 - Normal
              Item Group: Crash Error
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: 2.1.1

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Details:

altcp_tcp_close(struct altcp_pcb*) removes callbacks for the tcp pcb without
verifying state of the pcb. When setting callbacks to NULL, TCP asserts that
we are not in state LISTEN.

I'm using the latest released version (2.1.2)




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