7ae005e784
If len of d_name is less than "pid", it will pass a invalid ptr to strcmp, which will cause crash.
30 lines
757 B
Diff
30 lines
757 B
Diff
From 360a23478dda391daa056c08a7c564f5b350e43a Mon Sep 17 00:00:00 2001
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From: nocjj <1250062498@qq.com>
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Date: Thu, 21 Jan 2021 10:57:09 +0800
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Subject: [PATCH] bugfix: add check to avoid invalid ptr for strcmp
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If len of d_name is less than "pid", it will pass a invalid ptr
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to strcmp, which will cause crash.
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---
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src/domain.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/domain.c b/src/domain.c
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index 7f9173d..f8dea48 100644
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--- a/src/domain.c
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+++ b/src/domain.c
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@@ -253,6 +253,10 @@ static int check_pid_file(const char *d_name)
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int extern_len = strlen(extern_name);
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int len = strlen(d_name);
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+ if (len <= extern_len) {
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+ return -1;
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+ }
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+
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return strcmp(d_name + len - extern_len, extern_name);
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}
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--
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2.27.0
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