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| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2021-01-26 17:29:08 +0100 |
|---|---|---|
| committer | Qt Cherry-pick Bot <cherrypick_bot@qt-project.org> | 2021-02-03 11:31:48 +0000 |
| commit | a454a5628a50afdb1c968a52685055772dcbd3e5 (patch) | |
| tree | a25e6610ddaf51f46d0cae7d4b23d9d01574de8e /tests | |
| parent | 41830b812e5883ff7b98fa1f5779df4648738829 (diff) | |
Avoid overflow in text layout
Fixes oss-fuzz issue 29313.
Change-Id: Idbabd162fa9e0dbce687981bdbcc75be37189a61
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Robert Löhning <robert.loehning@qt.io>
(cherry picked from commit bfc09b8d8fa6c1a397aff458c644ed424754adf0)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp index afcae2f4b7..63dbdb5375 100644 --- a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp +++ b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp @@ -1895,6 +1895,19 @@ void tst_QTextLayout::longText() QVERIFY(line.isValid()); QVERIFY(line.cursorToX(line.textLength() - 1) > 0); } + + { + QTextLayout layout(QString("Qt rocks! ").repeated(200000)); + layout.setCacheEnabled(true); + layout.beginLayout(); + forever { + QTextLine line = layout.createLine(); + if (!line.isValid()) + break; + } + layout.endLayout(); + QVERIFY(layout.maximumWidth() <= QFIXED_MAX); + } } void tst_QTextLayout::widthOfTabs() |