[lwip-devel] [bug #47448] netconn/socket leak if RST is received during close

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/bugs/?47448>

                 Summary: netconn/socket leak if RST is received during close
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Do 17 Mär 2016 20:41:16 GMT
                Category: sockets/netconn
                Severity: 3 - Normal
              Item Group: Change Request
                  Status: In Progress
                 Privacy: Public
             Assigned to: goldsimon
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: git head

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Details:

err_tcp() aborts a running close with the error received by the core
(ERR_RST/ERR_ABRT).  If this interrupts a running close, closing the netconn
aborts with an error (resulting in possible netconn/socket leaks if the
calling application is not prepared for close failing).

See also bug #46701 for a discussion on this.




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