From: Moriyoshi Koizumi <moriyoshi@php.net>
Date: Sat, 14 Feb 2009 08:16:05 +0000 (+0000)
Subject: - MFH: prevent unwanted overflow
X-Git-Tag: RELEASE_1_3_5~126
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=88eac1503adba6f121c66ffe29584751d2f5bc3d;p=php

- MFH: prevent unwanted overflow
---

diff --git a/ext/mbstring/libmbfl/mbfl/mbfilter.c b/ext/mbstring/libmbfl/mbfl/mbfilter.c
index 907fa272b6..646912ad16 100644
--- a/ext/mbstring/libmbfl/mbfl/mbfilter.c
+++ b/ext/mbstring/libmbfl/mbfl/mbfilter.c
@@ -906,6 +906,9 @@ mbfl_strpos(
 
 	if (offset < 0) {
 		negative_offset = -offset - pc.needle_len;
+		if (negative_offset < 0) {
+			negative_offset = 0;
+		}
 		offset = 0;
 	}