From e6c0c12f65a9b0405ec3cebd2cdebda57dfe916f Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 25 Jan 2017 13:37:51 +0000
Subject: [PATCH] [Minor] Add additional safe guard for nan values

---
 src/lua/lua_task.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/lua/lua_task.c b/src/lua/lua_task.c
index f79de9b92..c59ae33dc 100644
--- a/src/lua/lua_task.c
+++ b/src/lua/lua_task.c
@@ -27,6 +27,7 @@
 #include "cryptobox.h"
 #include "unix-std.h"
 #include "libmime/smtp_parsers.h"
+#include <math.h>
 
 /***
  * @module rspamd_task
@@ -3159,7 +3160,7 @@ lua_task_get_metric_score (lua_State *L)
 		if ((metric_res =
 			g_hash_table_lookup (task->results, metric_name)) != NULL) {
 			lua_createtable (L, 2, 0);
-			lua_pushnumber (L, metric_res->score);
+			lua_pushnumber (L, isnan (metric_res->score) ? 0.0 : metric_res->score);
 			rs = rspamd_task_get_required_score (task, metric_res);
 			lua_rawseti (L, -2, 1);
 			lua_pushnumber (L, rs);
-- 
2.39.5