diff --git a/django/core/files/uploadhandler.py b/django/core/files/uploadhandler.py
old mode 100644
new mode 100755
index 6a0eebe43e..f6945853fe
--- a/django/core/files/uploadhandler.py
+++ b/django/core/files/uploadhandler.py
@@ -180,6 +180,7 @@ class MemoryFileUploadHandler(FileUploadHandler):
         if not self.activated:
             return
 
+        self.file.seek(0)
         return InMemoryUploadedFile(
             file = self.file,
             field_name = self.field_name,