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ras: Protect against divide by zero

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oss-fuzz/12905
This commit is contained in:
Albert Astals Cid 2019-02-05 19:51:24 +01:00
parent bad90cea4b
commit b072484dbb
1 changed files with 6 additions and 0 deletions
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6
src/imageformats/ras.cpp
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@ -111,6 +111,12 @@ static bool LoadRAS(QDataStream &s, const RasHeader &ras, QImage &img)
}
const int bpp = ras.Depth / 8;
if (ras.Height == 0) {
return false;
}
if (bpp == 0) {
return false;
}
if (ras.Length / ras.Height / bpp < ras.Width) {
qWarning() << "LoadRAS() mistmatch between height and width" << ras.Width << ras.Height << ras.Length << ras.Depth;
return false;