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  1. Qt
  2. QTBUG-138561

QFont::exactMatch index out of bounds

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    • 06b716602 (dev), 9fa2658a1 (6.10), 8c50c7e97 (6.9), 90e14e5fb (tqtc/lts-6.8), 867d0cb37 (tqtc/lts-6.5)

      Application crashes in <QFontDef::exactMatch>

      It occurs due to index out of bounds when iterating over <families>.

      <families> has a count of 2 and  and <other.families> has a count of 1.

      There used to be a check in case the lists have a different size, but it was removed in: Change-Id: Id3c1a4e827756a4c928fed461a4aafa5a0f06633

       

        1. qt6_font_dump_call_stack.txt
          0.6 kB
          Roman Schuh
        2. debugger_data.png
          121 kB
          Roman Schuh
        3. exactmatchissue.pro
          0.5 kB
          Roman Schuh
        4. main.cpp
          0.2 kB
          Roman Schuh
        For Gerrit Dashboard: QTBUG-138561
        # Subject Branch Project Status CR V
        670261,2 Fix crash in QFont::exactMatch() with different family counts dev qt/qtbase Status: MERGED +2 +1
        670418,2 Fix crash in QFont::exactMatch() with different family counts 6.10 qt/qtbase Status: MERGED +2 0
        670527,2 Fix crash in QFont::exactMatch() with different family counts 6.9 qt/qtbase Status: MERGED +2 0
        670540,2 Fix crash in QFont::exactMatch() with different family counts tqtc/lts-6.8 qt/tqtc-qtbase Status: MERGED +2 0
        670565,2 Fix crash in QFont::exactMatch() with different family counts tqtc/lts-6.5 qt/tqtc-qtbase Status: MERGED +2 0

            esabraha Eskil Abrahamsen Blomfeldt
            roman_schuh Roman Schuh
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              Created:
              Updated:
              Resolved: