From b2dcbb6b4c42fe86ff89641b1434b345c0de3146 Mon Sep 17 00:00:00 2001
From: James Jackson-South <james_south@hotmail.com>
Date: Thu, 27 Sep 2018 09:17:22 +0100
Subject: [PATCH] Use clean buffer when detecing format. Fix #714

---
 src/ImageSharp/Image.Decode.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ImageSharp/Image.Decode.cs b/src/ImageSharp/Image.Decode.cs
index 894551e08..8b9f3fdb5 100644
--- a/src/ImageSharp/Image.Decode.cs
+++ b/src/ImageSharp/Image.Decode.cs
@@ -30,7 +30,7 @@ namespace SixLabors.ImageSharp
                 return null;
             }
 
-            using (IManagedByteBuffer buffer = config.MemoryAllocator.AllocateManagedByteBuffer(maxHeaderSize))
+            using (IManagedByteBuffer buffer = config.MemoryAllocator.AllocateManagedByteBuffer(maxHeaderSize, AllocationOptions.Clean))
             {
                 long startPosition = stream.Position;
                 stream.Read(buffer.Array, 0, maxHeaderSize);