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IFF: fix Integer-overflow in IDATChunk::strideSize

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This commit is contained in:
Mirco Miranda
2026-03-23 12:05:01 +01:00
parent ec0610d5b0
commit 7c86ccaefb
1 changed files with 2 additions and 1 deletions
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src/imageformats/chunks.cpp
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@ -3092,7 +3092,8 @@ quint32 IDATChunk::strideSize(const IHDRChunk *header) const
return 0; return 0;
} }
auto rs = (header->width() * header->depth() + 7) / 8; // width() and depth() are at most 65535
auto rs = (quint32(header->width()) * header->depth() + 7) / 8;
// No padding bytes are inserted in the data. // No padding bytes are inserted in the data.
if (header->model() == IHDRChunk::Rgb888) { if (header->model() == IHDRChunk::Rgb888) {