Address boundary error when trying to use Image.putdata(array) from PIL

[Tristan Trouwen]

Got a signal boundary error.

Steps to reproduce:
open python console

Python 2.7.9 (default, Jun 29 2016, 13:08:31) 
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from PIL import Image
>>> im = Image.open('HKJL.jpg')
>>> import numpy as np
>>> arr = np.array(im)
>>> arr[arr < 10] = 0
>>> im.putdata(arr)
fish: “python” terminated by signal SIGSEGV (Address boundary error)

The image I used: http://i.imgur.com/hnuzhFj.jpg