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  1. Qt
  2. QTBUG-101281

Loading particular svg file takes far too long

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Details

    • 8f5075067 (dev)

    Description

      1. Have a build of Qt including qtsvg.
        No sanitizers needed.
      2. Build the attached project: 
        qt-cmake /tmp/report/ && cmake --build .
      3. Run the resulting binary passing the attached input file as parameter: 
        ./report /tmp/report/44692.svg

        This is completely occupying a full CPU for more than ten seconds.

      Google's oss-fuzz found this as issue 44692. They will publish the details on May 16th. You can find a backtrace in their detailed report.

      Attachments

        1. 44692.svg
          0.1 kB
        2. CMakeLists.txt
          0.3 kB
        3. details.html
          1.80 MB
        4. main.cpp
          0.2 kB

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-110595 [REG 5.15 -> 6.x] QSvgRenderer::render(QPainter*) is now ~100x slower

          • 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
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-102599 Slow painting of svg file

          • 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
          For Gerrit Dashboard: QTBUG-101281
          # Subject Branch Project Status CR V
          465010,2 fuzzing: Add svg file which revealed performance regression dev qt/qtqa Status: MERGED +2 0

          Activity

            People

              qt.team.graphics.and.multimedia Qt Graphics Team
              rlohning Robert Löhning
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              Dates

                Created:
                Updated:
                Resolved:

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