From ae2bc6297ebc4e5992949a4e0fbeaa0f03c62704 Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Wed, 19 Jun 2019 14:35:44 +0200
Subject: [PATCH] Fix shift UB in mbfilter_utf32.c

---
 ext/mbstring/libmbfl/filters/mbfilter_utf32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/mbstring/libmbfl/filters/mbfilter_utf32.c b/ext/mbstring/libmbfl/filters/mbfilter_utf32.c
index 5b02362b5d..b1b41331eb 100644
--- a/ext/mbstring/libmbfl/filters/mbfilter_utf32.c
+++ b/ext/mbstring/libmbfl/filters/mbfilter_utf32.c
@@ -138,7 +138,7 @@ int mbfl_filt_conv_utf32_wchar(int c, mbfl_convert_filter *filter)
 		if (endian) {
 			n = c & 0xff;
 		} else {
-			n = (c & 0xff) << 24;
+			n = (unsigned) (c & 0xff) << 24;
 		}
 		filter->cache = n;
 		filter->status++;
-- 
2.50.1