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-rw-r--r--ext/mbstring/oniguruma/enc/utf32_be.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/mbstring/oniguruma/enc/utf32_be.c b/ext/mbstring/oniguruma/enc/utf32_be.c
index b4f822607c..5295f26b1e 100644
--- a/ext/mbstring/oniguruma/enc/utf32_be.c
+++ b/ext/mbstring/oniguruma/enc/utf32_be.c
@@ -60,6 +60,7 @@ utf32be_is_mbc_newline(const UChar* p, const UChar* end)
static OnigCodePoint
utf32be_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED)
{
+ if (end - p < 4) return 0;
return (OnigCodePoint )(((p[0] * 256 + p[1]) * 256 + p[2]) * 256 + p[3]);
}