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  1. Qt
  2. QTBUG-113838

Data Race on QDnsLookupThreadPool::signalsConnected

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Details

    • Task
    • Resolution: Fixed
    • P2: Important
    • 6.5.4
    • None
    • Network: DNS
    • None
    • 3
    • 87fc6d209 (6.5)
    • Foundation Sprint 82, Foundation Sprint 83, Foundation Sprint 84, Foundation Sprint 85, Foundation Sprint 86, Foundation Sprint 87, Foundation Sprint 88, Foundation Sprint 89, Foundation Sprint 90, Foundation Sprint 91, Foundation Sprint 92

    Description

      The QDnsLookupThreadPool::signalsConnected boolean variable is written to and read from outside signalsMutex protection in _q_applicationDestroyed() and start(QRunnable*). This is a data race, because the writes don't synchronize-with the reads.

      QTBUG-113836 fixed this for 6.6+, but Qt ≤ 6.5 is still affected.

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          is covered by

          Task - A task that needs to be done. QTBUG-113836 Port QDnsLookupThreadPool to Q_APPLICATION_STATIC

          • P4: Low - Would be nice to fix, but it's not very important.
          • Closed
          relates to

          Task - A task that needs to be done. QTBUG-113840 UB in QDnsLookupThreadPool::start(QRunnable*)

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Open
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            People

              manordheim Mårten Nordheim
              mmutz Marc Mutz
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              Dates

                Created:
                Updated:
                Resolved:

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