reference: clamp local stratum set from cmdmon

diff --git a/reference.c b/reference.c
index c531356f35259987876120163cad788580cbed9b..61a356bd65a9041c80ce49596c13f23d0b5b011e 100644 (file)
--- a/reference.c
+++ b/reference.c
@@ -1314,7 +1314,7 @@ void
 REF_EnableLocal(int stratum)
 {
   enable_local_stratum = 1;
-  local_stratum = stratum;
+  local_stratum = CLAMP(1, stratum, NTP_MAX_STRATUM - 1);
 }
 
 /* ================================================== */