From 5c8b497d76a935153d92d509b14c90fdaa1a4577 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 17 Dec 2018 17:25:13 +0000
Subject: [PATCH] [Minor] Core: Fix length calculations

---
 src/libutil/str_util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libutil/str_util.c b/src/libutil/str_util.c
index 949bdd3371..0c63edba2d 100644
--- a/src/libutil/str_util.c
+++ b/src/libutil/str_util.c
@@ -935,7 +935,7 @@ rspamd_encode_qp_fold (const guchar *in, gsize inlen, gint str_len,
 			span += 3;
 		}
 
-		if (str_len > 0 && span >= str_len) {
+		if (str_len > 0 && span + 3 >= str_len) {
 			if (how == RSPAMD_TASK_NEWLINES_CRLF) {
 				/* =\r\n */
 				olen += 3;
-- 
2.47.3