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  1. Qt
  2. QTBUG-85138

QXmlStreamReader slow on certain input

    XMLWordPrintable

Details

    • 8
    • Foundations Sprint 94, Foundations Sprint 95

    Description

      1. Build the attached project.
      2. Pass the attached .xml file to the resulting program: 
        ./report input.xml

        It will take more than 4 seconds to run through the file which is significantly longer than other, even much larger files take.

      Google's oss-fuzz found this as issue 21099 issue 23892.

      Attachments

        1. input.xml
          584 kB
        2. main.cpp
          0.3 kB
        3. new.xml
          228 kB
        4. report.pro
          0.1 kB

        Issue Links

          is covered by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-92113 QXmlStreamReader freezes

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-95188 Out-of-memory in QXmlStreamReader

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

            People

              rybouabi Rym Bouabid
              rlohning Robert Löhning
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              1 Vote for this issue
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              3 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

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