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Fix stack corruption in cvConvexHull2 and heap corruption in OutputArray::create

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This commit is contained in:
Andrey Kamaev 2013-03-31 13:24:36 +04:00
parent b28f594917
commit 605382562d
2 changed files with 5 additions and 4 deletions
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6
modules/core/src/matrix.cpp
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@ -1548,10 +1548,10 @@ void _OutputArray::create(int dims, const int* sizes, int mtype, int i, bool all
int _type = CV_MAT_TYPE(flags);
for( size_t j = len0; j < len; j++ )
{
if( v[i].type() == _type )
if( v[j].type() == _type )
continue;
CV_Assert( v[i].empty() );
v[i].flags = (v[i].flags & ~CV_MAT_TYPE_MASK) | _type;
CV_Assert( v[j].empty() );
v[j].flags = (v[j].flags & ~CV_MAT_TYPE_MASK) | _type;
}
}
return;

3
modules/imgproc/src/convhull.cpp
View File

@ -455,7 +455,7 @@ cvConvexHull2( const CvArr* array, void* hull_storage,
hullseq = cvMakeSeqHeaderForArray(
CV_SEQ_KIND_CURVE|CV_MAT_TYPE(mat->type)|CV_SEQ_FLAG_CLOSED,
sizeof(contour_header), CV_ELEM_SIZE(mat->type), mat->data.ptr,
sizeof(hull_header), CV_ELEM_SIZE(mat->type), mat->data.ptr,
mat->cols + mat->rows - 1, &hull_header, &hullblock );
cvClearSeq( hullseq );
}
@ -475,6 +475,7 @@ cvConvexHull2( const CvArr* array, void* hull_storage,
cv::convexHull(cv::cvarrToMat(ptseq, false, false, 0, &_ptbuf), h0,
orientation == CV_CLOCKWISE, CV_MAT_CN(hulltype) == 2);
if( hulltype == CV_SEQ_ELTYPE_PPOINT )
{
const int* idx = h0.ptr<int>();