Issue #25498: Merge ctypes crash fix from 3.4 into 3.5

diff --cc Misc/ACKS
Simple merge

diff --cc Misc/NEWS
index 41ae899ad7ebd7128b5034af19baf45f58012fa4,aacd51ea079036b78efcca8f8acad0e2ef590f1c..c766615d7419c6bd4113e86c62e4a72d1963ca89
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -67,12 -103,10 +67,16 @@@ Core and Builtin
  Library
  -------
  
 -  by wrapping a memoryview.  This was a regression made in 3.4.3.  Based
+ - Issue #25498: Fix a crash when garbage-collecting ctypes objects created
++  by wrapping a memoryview.  This was a regression made in 3.5a1.  Based
+   on patch by Eryksun.
+ 
 +- Issue #25584: Added "escape" to the __all__ list in the glob module.
 +
 +- Issue #25584: Fixed recursive glob() with patterns starting with '\*\*'.
 +
 +- Issue #25446: Fix regression in smtplib's AUTH LOGIN support.
 +
  - Issue #18010: Fix the pydoc web server's module search function to handle
    exceptions from importing packages.
  

diff --cc Modules/_ctypes/_ctypes.c
Simple merge