Fix bug #1512695: cPickle.loads could crash if it was interrupted with
a KeyboardInterrupt since PyTuple_Pack was passed a NULL.

Will backport.
diff --git a/Misc/NEWS b/Misc/NEWS
index cefa739..efbb145 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -28,6 +28,12 @@
 
 - The wsgiref package is now installed properly on Unix.
 
+Extension Modules
+-----------------
+
+- Bug #1512695: cPickle.loads could crash if it was interrupted with
+  a KeyboardInterrupt.
+
 Build
 -----