[lwip-devel] [bug #48398] dns: entries reused during found-callback could be aborted if ttl==0

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/bugs/?48398>

                 Summary: dns: entries reused during found-callback could be
aborted if ttl==0
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Mon 04 Jul 2016 11:32:08 AM GMT
                Category: DNS
                Severity: 3 - Normal
              Item Group: None
                  Status: In Progress
                 Privacy: Public
             Assigned to: goldsimon
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: git head

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Details:

... because dns_correct_response sets them to DNS_STATE_UNUSED if ttl==0
without checking if the found-callback reused them by calling into dns again.




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