core(stat): disable IPP optimization in meanStdDev (cn > 1)

alalek · alalek · commit e58a778bd553 · 2017-07-31T14:09:18.000+03:00
diff --git a/modules/core/src/stat.cpp b/modules/core/src/stat.cpp
@@ -1739,6 +1739,13 @@ static bool ipp_meanStdDev(Mat& src, OutputArray _mean, OutputArray _sdv, Mat& m
 
 #if IPP_VERSION_X100 >= 700
     int cn = src.channels();
+
+#if IPP_VERSION_X100 < 201801
+    // IPP_DISABLE: C3C functions can read outside of allocated memory
+    if (cn > 1)
+        return false;
+#endif
+
     size_t total_size = src.total();
     int rows = src.size[0], cols = rows ? (int)(total_size/rows) : 0;
     if( src.dims == 2 || (src.isContinuous() && mask.isContinuous() && cols > 0 && (size_t)rows*cols == total_size) )
