From 650d06d71d602faa708c7d33045764a9f76b4ada Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Tue, 23 Jan 2018 10:37:41 -0500
Subject: [PATCH] ...

---
 MagickCore/quantum.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MagickCore/quantum.c b/MagickCore/quantum.c
index 4f9f7663b..cfff6c5a7 100644
--- a/MagickCore/quantum.c
+++ b/MagickCore/quantum.c
@@ -181,7 +181,7 @@ static MagickBooleanType AcquireQuantumPixels(QuantumInfo *quantum_info,
         return(MagickFalse);
       }
     pixels=(unsigned char *)  GetVirtualMemoryBlob(quantum_info->pixels[i]);
-    (void) ResetMagickMemory(pixels,0,(4*extent+1)*sizeof(*pixels));
+    (void) ResetMagickMemory(pixels,0,4*(extent+1)*sizeof(*pixels));
     pixels[4*extent]=QuantumSignature;
   }
   return(MagickTrue);
-- 
2.40.0