AuroraMiddleware/qt5base-lts
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Test incoming formats more throuroughly

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Just to protect against invalid data in d->format.

Change-Id: I5e7cc04d5d8e42bdcb0edd2ab5fa34a08b96b6a8
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
This commit is contained in:
Allan Sandfeld Jensen 2021-03-22 12:36:30 +01:00
parent 22c66e12e4
commit 35ef3fb009
1 changed files with 9 additions and 6 deletions
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15
src/gui/image/qimage.cpp
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@ -126,7 +126,7 @@ QImageData::QImageData()
*/
QImageData * QImageData::create(const QSize &size, QImage::Format format)
{
if (size.isEmpty() || format == QImage::Format_Invalid)
if (size.isEmpty() || format <= QImage::Format_Invalid || format >= QImage::NImageFormats)
return nullptr; // invalid parameter(s)
Q_TRACE_SCOPE(QImageData_create, size, format);
@ -791,7 +791,7 @@ QImage::QImage(const QSize &size, Format format)
QImageData *QImageData::create(uchar *data, int width, int height, qsizetype bpl, QImage::Format format, bool readOnly, QImageCleanupFunction cleanupFunction, void *cleanupInfo)
{
if (width <= 0 || height <= 0 || !data || format == QImage::Format_Invalid)
if (width <= 0 || height <= 0 || !data || format <= QImage::Format_Invalid || format >= QImage::NImageFormats)
return nullptr;
const int depth = qt_depthForFormat(format);
@ -2072,7 +2072,7 @@ QImage QImage::convertToFormat_helper(Format format, Qt::ImageConversionFlags fl
if (!d || d->format == format)
return *this;
if (format == Format_Invalid || d->format == Format_Invalid)
if (d->format == Format_Invalid || format <= Format_Invalid || format >= NImageFormats)
return QImage();
const QPixelLayout *destLayout = &qPixelLayouts[format];
@ -2202,7 +2202,7 @@ QImage QImage::convertToFormat(Format format, const QList<QRgb> &colorTable, Qt:
if (!d || d->format == format)
return *this;
if (format == QImage::Format_Invalid)
if (format <= QImage::Format_Invalid || format >= QImage::NImageFormats)
return QImage();
if (format <= QImage::Format_Indexed8)
return convertWithPalette(convertToFormat(QImage::Format_ARGB32, flags), format, colorTable);
@ -2268,7 +2268,10 @@ bool QImage::reinterpretAsFormat(Format format)
void QImage::convertTo(Format format, Qt::ImageConversionFlags flags)
{
if (!d || format == QImage::Format_Invalid || d->format == format)
if (!d || format <= QImage::Format_Invalid || format >= QImage::NImageFormats)
return;
if (d->format == format)
return;
detach();
@ -5336,7 +5339,7 @@ QPixelFormat QImage::pixelFormat() const noexcept
*/
QPixelFormat QImage::toPixelFormat(QImage::Format format) noexcept
{
Q_ASSERT(static_cast<int>(format) < NImageFormats);
Q_ASSERT(static_cast<int>(format) < NImageFormats && static_cast<int>(format) >= 0);
return pixelformats[format];
}