[lwip-devel] [bug #48827] Possible bug in tcp_zero_window_probe()

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/bugs/?48827>

                 Summary: Possible bug in tcp_zero_window_probe()
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Fri 19 Aug 2016 01:26:30 PM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: git head

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Details:

tcp_zero_windo_probe() tries to send one data byte. If this comes from the
pcb->unacked list, the calculation might be wrong (as it assumes
seg->p->payload points to the tcp header, but it might rather point to the
ethernet header).




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