add CHANGES note

diff --git a/CHANGES b/CHANGES
index bb30262b797ff133e5f14134ee2346c425f151ed..eae6157271964eabb8a352e7f30cb96b96b22ca5 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+5017.  [bug]           lib/isc/pk11.c failed to unlink the session before
+                       releasing the lock which is unsafe. [GL !589]
+
 5016.  [bug]           Named could assert with overlapping filter-aaaa and
                        dns64 acls. [GL #445]