fixes crash for psb files > 2GB

roniemartinez / libqpsd

PSD (Photoshop Document) & PSB (Photoshop Big) Plugin for Qt/C++ (Qt4/Qt5)

GNU Lesser General Public License v2.1

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Closed diemmarkus closed 6 years ago

diemmarkus commented 6 years ago

totalBytesPerChannel has an overflow if width height depth is > INT_MAX in line 108
the cast avoids this overflow and if ((quint64)imageData.size() != size) in line 132 becomes true
here is a test image: https://www.spacetelescope.org/static/archives/images/original/heic1502a.psb

roniemartinez commented 6 years ago

Thank you @diemmarkus 👍