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pcx: Fix crash in broken files

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This commit is contained in:
Albert Astals Cid 2024-07-26 16:51:49 +02:00
parent 4478bc8d2b
commit 23e9fec869
1 changed files with 4 additions and 1 deletions
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5
src/imageformats/pcx.cpp
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@ -464,6 +464,8 @@ static bool readImage24(QImage &img, QDataStream &s, const PCXHEADER &header)
return false; return false;
} }
const unsigned int bpl = std::min(header.BytesPerLine, static_cast<quint16>(header.width()));
for (int y = 0; y < header.height(); ++y) { for (int y = 0; y < header.height(); ++y) {
if (s.atEnd()) { if (s.atEnd()) {
return false; return false;
@ -480,7 +482,8 @@ static bool readImage24(QImage &img, QDataStream &s, const PCXHEADER &header)
} }
uint *p = (uint *)img.scanLine(y); uint *p = (uint *)img.scanLine(y);
for (int x = 0; x < header.width(); ++x) {
for (unsigned int x = 0; x < bpl; ++x) {
p[x] = qRgb(r_buf[x], g_buf[x], b_buf[x]); p[x] = qRgb(r_buf[x], g_buf[x], b_buf[x]);
} }
} }