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Fix crash on malformed files

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oss-fuzz/449485443
This commit is contained in:
Albert Astals Cid
2025-10-05 23:24:45 +02:00
parent 3c8539d53d
commit 8658355701
1 changed files with 6 additions and 2 deletions
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8
src/imageformats/chunks.cpp
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@ -545,8 +545,12 @@ bool CMAPChunk::innerReadStructure(QIODevice *d)
QList<QRgb> CMAPChunk::innerPalette() const
{
QList<QRgb> l;
auto &&d = data();
for (qint32 i = 0, n = count(); i < n; ++i) {
const QByteArray &d = data();
const qint32 n = count();
if (n * 3 > d.size()) {
return {};
}
for (qint32 i = 0; i < n; ++i) {
auto i3 = i * 3;
l << qRgb(d.at(i3), d.at(i3 + 1), d.at(i3 + 2));
}