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Fix potential pointer overflow.

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srcY-roi.y is promoted to size_t which creates problems when it is
negative.
This commit is contained in:
Vincent Rabaud
2026-01-06 00:48:59 +01:00
parent f3758f40ae
commit e9c6cb98ea
1 changed files with 2 additions and 1 deletions
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3
modules/imgproc/src/box_filter.simd.hpp
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@@ -44,6 +44,7 @@
#include "precomp.hpp" #include "precomp.hpp"
#include "opencv2/core/hal/intrin.hpp" #include "opencv2/core/hal/intrin.hpp"
#include <cstddef>
namespace cv { namespace cv {
CV_CPU_OPTIMIZATION_NAMESPACE_BEGIN CV_CPU_OPTIMIZATION_NAMESPACE_BEGIN
@@ -1513,7 +1514,7 @@ void BlockSum(const Mat& _src, Mat& _dst, Size ksize, Point anchor, const Size &
borderLeft*sizeof(T), inplace); borderLeft*sizeof(T), inplace);
} }
else else
ref = (const T*)(src+(srcY-roi.y)*srcStep); ref = (const T*)(src+(srcY-roi.y)*(ptrdiff_t)srcStep);
S = ref; S = ref;
R = (T*)alignPtr(border, VEC_ALIGN); R = (T*)alignPtr(border, VEC_ALIGN);