File ImageMagick-CVE-2020-27763.patch of Package ImageMagick

Index: ImageMagick-6.8.8-1/magick/resize.c
===================================================================
--- ImageMagick-6.8.8-1.orig/magick/resize.c	2020-12-08 17:40:30.207980193 +0100
+++ ImageMagick-6.8.8-1/magick/resize.c	2020-12-08 17:40:34.476009030 +0100
@@ -1092,10 +1092,9 @@ MagickExport ResizeFilter *AcquireResize
     Adjust window function scaling to match windowing support for
     weighting function.  This avoids a division on every filter call.
   */
-  resize_filter->scale/=resize_filter->window_support;
-
+  resize_filter->scale*=PerceptibleReciprocal(resize_filter->window_support);
   /*
-   * Set Cubic Spline B,C values, calculate Cubic coefficients.
+    Set Cubic Spline B,C values, calculate Cubic coefficients.
   */
   B=0.0;
   C=0.0;