From 86e3a152fbf073ec59df0f2b18a825b27ce6b710 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 9 Aug 2021 14:09:00 +0100
Subject: [PATCH] [Minor] Do not go into utf8 checks on non utf8 leading
 characters

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

diff --git a/src/libmime/message.c b/src/libmime/message.c
index 532667e5d..d788844a3 100644
--- a/src/libmime/message.c
+++ b/src/libmime/message.c
@@ -240,7 +240,7 @@ rspamd_strip_newlines_parse (struct rspamd_task *task,
 	} state = normal_char;
 
 	while (p < pe) {
-		if (is_utf) {
+		if (U8_IS_LEAD(*p) && is_utf) {
 			gint32 off = p - begin;
 			U8_NEXT (begin, off, pe - begin, uc);
 
-- 
2.39.5