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[lwip-devel] [bug #47334] 6LoWPAN crashes on reassembly of high payload


From: Simon Goldschmidt
Subject: [lwip-devel] [bug #47334] 6LoWPAN crashes on reassembly of high payload lengths
Date: Fri, 04 Mar 2016 20:32:56 +0000
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36

Update of bug #47334 (project lwip):

                  Status:                    None => Works For Me           

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Follow-up Comment #10:

>So that means you have 308 extra bytes allocated

Ooops, I got that wrong: struct lowpan6_reass_helper is only allocated once
per FRAG1 (not per FRAGN), so you only have 22 bytes of overhead per
fragmented IPv6 packet.

Given that, I don't know what's the issue and what's the proposed fix.

We could enforce an upper limit on allocated packets and/or fragments, but I
don't see how it would crash.

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Reply to this item at:

  <http://savannah.nongnu.org/bugs/?47334>

_______________________________________________
  Nachricht gesendet von/durch Savannah
  http://savannah.nongnu.org/




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