Commit 266e59ed8 for imagemagick.org

commit 266e59ed8d886a76355c863bd38ff5ac34537673
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Wed Jan 28 19:50:14 2026 -0500

    https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-xg29-8ghv-v4x

diff --git a/coders/sixel.c b/coders/sixel.c
index a0ae4b8b7..3562fdb2a 100644
--- a/coders/sixel.c
+++ b/coders/sixel.c
@@ -250,12 +250,8 @@ static MagickBooleanType sixel_decode(Image *image,unsigned char *p,
     background_color_index,
     c,
     color_index,
-    dmsx,
-    dmsy,
     g,
     i,
-    imsx,
-    imsy,
     n,
     max_color_index,
     max_x,
@@ -278,6 +274,12 @@ static MagickBooleanType sixel_decode(Image *image,unsigned char *p,
     extent,
     offset;

+  ssize_t
+    dmsx,
+    dmsy,
+    imsx,
+    imsy;
+
   extent=strlen((char *) p);
   position_x=position_y=0;
   max_x=max_y=0;
@@ -487,7 +489,7 @@ static MagickBooleanType sixel_decode(Image *image,unsigned char *p,
       {
         if ((imsx < (position_x + repeat_count)) || (imsy < (position_y + 6)))
           {
-            int
+            ssize_t
               nx,
               ny;