Issue #7019: An attempt to unmarshal bad long data could produce
unnormalized PyLong objects; make it raise ValueError instead.
diff --git a/Misc/NEWS b/Misc/NEWS
index 90b59a7..ab14d9d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
 Core and Builtins
 -----------------
 
+- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
+  of producing internally inconsistent Python longs.
+
 Library
 -------