Issue #6274. Fixed a potential FD leak in subprocess.py.
diff --git a/Misc/NEWS b/Misc/NEWS
index d31ea5d..378435b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -56,6 +56,8 @@
 Library
 -------
 
+- Issue #6274: Fixed possible file descriptors leak in subprocess.py
+
 - Issue #6271: mmap tried to close invalid file handle (-1) when annonymous.
   (On Unix)