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  1. Qt
  2. QTBUG-48910

Crash in OS X when harfbuzz shaping specific text

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • P1: Critical
    • None
    • 5.5.1
    • GUI: Text handling
    • None
    • OS X 10.11
    • macOS

    Description

      Some specific texts (at least one is provided: QChar(0x261C) + QChar(0x0B43)) causes harfbuzz text shaping crash in OS X in Qt 5.5.1.

      #include <QtGui/QGuiApplication>
      #include <QtGui/QFontMetrics>
      
      int main(int argc, char *argv[]) {
      	QGuiApplication a(argc, argv);
      
      	qWarning() << QFontMetrics(a.font()).width(QString() + QChar(0x261C) + QChar(0x0B43));
      
      	return a.exec();
      }
      

      Example project and crash screenshot are attached.

      Attachments

        1. TestApp2.zip
          35 kB
        2. osxcrash.png
          osxcrash.png
          548 kB
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            esabraha Eskil Abrahamsen Blomfeldt
            johnpreston John Preston
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            Dates

              Created:
              Updated:
              Resolved:

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