guix/gnu/packages/patches/imagemagick-ReadDCMPixels-fix.patch

From c8f25953ad1dd38a8b2d92738f0f742ad7e0bce7 Mon Sep 17 00:00:00 2001
From: Cristy <mikayla-grace@urban-warrior.org>
Date: Sun, 21 Mar 2021 21:21:15 -0400
Subject: [PATCH] https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32322

---
 coders/dcm.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/coders/dcm.c b/coders/dcm.c
index 29eed9618..7a68ed6e8 100644
--- a/coders/dcm.c
+++ b/coders/dcm.c
@@ -2984,12 +2984,12 @@ static MagickBooleanType ReadDCMPixels(Image *image,DCMInfo *info,
         }
       else
         {
-          SetPixelRed(q,(Quantum) (((ssize_t) pixel.red) |
-            (((ssize_t) GetPixelRed(q)) << 8)));
-          SetPixelGreen(q,(Quantum) (((ssize_t) pixel.green) |
-            (((ssize_t) GetPixelGreen(q)) << 8)));
-          SetPixelBlue(q,(Quantum) (((ssize_t) pixel.blue) |
-            (((ssize_t) GetPixelBlue(q)) << 8)));
+          SetPixelRed(q,(Quantum) (((size_t) pixel.red) |
+            (((size_t) GetPixelRed(q)) << 8)));
+          SetPixelGreen(q,(Quantum) (((size_t) pixel.green) |
+            (((size_t) GetPixelGreen(q)) << 8)));
+          SetPixelBlue(q,(Quantum) (((size_t) pixel.blue) |
+            (((size_t) GetPixelBlue(q)) << 8)));
         }
       q++;
     }
-- 
2.31.0