More bug #1077106 stuff, sorry -- modem induced impatiece!

This should go on whatever bugfix branches the other fetches up on.
diff --git a/Misc/NEWS b/Misc/NEWS
index 92d9422..926ac52 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -21,6 +21,8 @@
 
 - set and frozenset objects can now be marshalled.  SF #1098985.
 
+- Bug #1077106: Poor argument checking could cause memory corruption
+  in calls to os.read().
 
 Extension Modules
 -----------------