Issue #12607: In subprocess, fix issue where if stdin, stdout or stderr is
given as a low fd, it gets overwritten.
diff --git a/Misc/NEWS b/Misc/NEWS
index d2d0f89..c587f6e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -37,6 +37,9 @@
 Library
 -------
 
+- Issue #12607: In subprocess, fix issue where if stdin, stdout or stderr is
+  given as a low fd, it gets overwritten.
+
 - Issue #12102: Document that buffered files must be flushed before being used
   with mmap. Patch by Steffen Daode Nurpmeso.