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authorRobert Löhning <robert.loehning@qt.io>2021-02-26 22:37:32 +0100
committerRobert Löhning <robert.loehning@qt.io>2021-03-02 16:06:06 +0000
commit37fab0d69491356d820d8e8a589ecf2cd6c31384 (patch)
treea2aef2d930f31d7f8c2bb7740ee2a60f68432500 /src/gui
parentd3983db3c5be17be1bd6d23d1070566929ec9857 (diff)
Limit value in setFontSizeFromValue()
Avoids overflows in QFreetypeFace::computeSize and QFontEngineBox::boundingBox Fixes oss-fuzz issue 30290 Change-Id: If8e9ff74bf706a701e26832ad21b3439a3b437f7 Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> (cherry picked from commit 976fede67ca4a4d322bc8d2c00266a2e2f1a6e3d)
Diffstat (limited to 'src/gui')
-rw-r--r--src/gui/text/qcssparser.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gui/text/qcssparser.cpp b/src/gui/text/qcssparser.cpp
index 967b30f8f0..2e12616cef 100644
--- a/src/gui/text/qcssparser.cpp
+++ b/src/gui/text/qcssparser.cpp
@@ -1140,14 +1140,14 @@ static bool setFontSizeFromValue(QCss::Value value, QFont *font, int *fontSizeAd
s.chop(2);
value.variant = s;
if (value.variant.convert((QVariant::Type)qMetaTypeId<qreal>())) {
- font->setPointSizeF(value.variant.toReal());
+ font->setPointSizeF(qBound(qreal(0), value.variant.toReal(), qreal(1 << 24) - 1));
valid = true;
}
} else if (s.endsWith(QLatin1String("px"), Qt::CaseInsensitive)) {
s.chop(2);
value.variant = s;
if (value.variant.convert(QMetaType::Int)) {
- font->setPixelSize(value.variant.toInt());
+ font->setPixelSize(qBound(0, value.variant.toInt(), (1 << 24) - 1));
valid = true;
}
}