diff --git a/ext/gd/libgd/gd_interpolation.c b/ext/gd/libgd/gd_interpolation.c
index 5d9e991127c49..0ca79a7ad5344 100644
--- a/ext/gd/libgd/gd_interpolation.c
+++ b/ext/gd/libgd/gd_interpolation.c
@@ -2461,10 +2461,18 @@ int gdTransformAffineBoundingBox(gdRectPtr src, const double affine[6], gdRectPt
 		if (max.y < extent[i].y)
 			max.y=extent[i].y;
 	}
+	double twidth = floor(max.x - min.x) - 1;
+	double theight = floor(max.y - min.y);
+
+	if (twidth < (double)INT_MIN || twidth > (double)INT_MAX)
+		twidth = 0.0;
+	if (theight < (double)INT_MIN || theight > (double)INT_MAX)
+		theight = 0.0;
+
 	bbox->x = (int) min.x;
 	bbox->y = (int) min.y;
-	bbox->width  = (int) floor(max.x - min.x) - 1;
-	bbox->height = (int) floor(max.y - min.y);
+	bbox->width  = (int) twidth;
+	bbox->height = (int) theight;
 	return GD_TRUE;
 }