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  1. Qt
  2. QTBUG-40714

Qt aborts when the server returns an empty protocol list in NPN extension

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 5.4.2, 5.5.0
    • 5.3.0, 5.3.1, 5.5.0
    • Network: SSL
    • None
    • Only tested on Linux, but doesn't seem OS dependent.
    • 3c24dddaf963026c6e3cd90dd7d538dfa8044c83

    Description

      When requesting a page from a SSL server which use NPN but doesn't provide any protocol in the extension list, Qt aborts with the following message:

      Error: chosen Next Protocol Negotiation value unsupported
      ASSERT: "!protocolHandler.isNull()" in file access/qhttpnetworkconnectionchannel.cpp, line 204

      The issue is the same problem that this one in Chromium, which provides some websites to test it.

      Attachments

        1. npntest.cpp
          3 kB
        2. npntest.pro
          0.1 kB
        3. qtdiag
          3 kB
        For Gerrit Dashboard: QTBUG-40714
        # Subject Branch Project Status CR V
        105504,2 SSL NPN negotiation: Do not abort on unmatched protocols 5.4 qt/qtbase Status: MERGED +2 0

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          People

            peter-har Peter Hartmann
            lobr Louis Brunner
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            Dates

              Created:
              Updated:
              Resolved:

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