CAM: Fix multiplication result converted to larger type

src/Mod/CAM/PathSimulator/App/VolSim.cpp

@@ -748,7 +748,7 @@ cSimTool::cSimTool(const TopoDS_Shape& toolShape, float res)
     for (int x = 0; x < radValue; x++) {
         // find the face of the tool by checking z points across the
         // radius to see if the point is inside the shape
-        pnt.x = x * res;
+        pnt.x = static_cast<double>(x) * res;
         bool inside = isInside(toolShape, pnt, res);
 
         // move down until the point is outside the shape

src/Mod/CAM/PathSimulator/AppGL/TextureLoader.cpp

@@ -55,7 +55,8 @@ TextureLoader::TextureLoader(std::string imgFolder,
                              int textureSize)
     : mImageFolder(imgFolder)
 {
-    int buffsize = textureSize * textureSize * sizeof(unsigned int);
+    size_t buffsize =
+        static_cast<size_t>(textureSize) * static_cast<size_t>(textureSize) * sizeof(unsigned int);
     mRawData = (unsigned int*)malloc(buffsize);
     if (mRawData == nullptr) {
         return;