Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
Reviewed by Amaury Forgeot d'Arc.
diff --git a/Misc/NEWS b/Misc/NEWS
index 5ab68bc..d021fd2 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@
 Core and Builtins
 -----------------
 
+- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
+
 - Issue #4856: Remove checks for win NT.
 
 - Issue #2016: Fixed a crash in a corner case where the dictionary of keyword