27 lines
796 B
Diff
27 lines
796 B
Diff
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From c13c26f415405e3203d91f601409497f8aa930dd Mon Sep 17 00:00:00 2001
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From: chengguipeng <chengguipeng1@huawei.com>
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Date: Thu, 3 Sep 2020 16:54:34 +0800
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Subject: [PATCH] 2
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Avoid NULL pointer dereference in function re_case_expand.
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Because parse_regexp() will return NULL pointer when the input parameter is abnomal.
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---
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src/fa.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/fa.c b/src/fa.c
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index 8e1d7d4..7935041 100644
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--- a/src/fa.c
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+++ b/src/fa.c
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@@ -4447,7 +4447,7 @@ int fa_expand_nocase(const char *regexp, size_t regexp_len,
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parse.rend = regexp + regexp_len;
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parse.error = REG_NOERROR;
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re = parse_regexp(&parse);
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- if (parse.error != REG_NOERROR)
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+ if (re == NULL)
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return parse.error;
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r = re_case_expand(re);
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--
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1.8.3.1
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