33 lines
892 B
Diff
33 lines
892 B
Diff
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From 32a19025bcaa705590c536f801a85e1e57d42942 Mon Sep 17 00:00:00 2001
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From: gaoxingwang <gxw94linux@163.com>
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Date: Wed, 26 Oct 2022 15:23:30 +0800
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Subject: [PATCH] lldptool: fix null pointer deference
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---
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weak_readline.c | 12 ++++++++----
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1 file changed, 8 insertions(+), 4 deletions(-)
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diff --git a/weak_readline.c b/weak_readline.c
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index 6b14f07..2d8da46 100644
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--- a/weak_readline.c
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+++ b/weak_readline.c
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@@ -80,10 +80,14 @@ void using_history(void)
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void close_history(void)
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{
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if (inited) {
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- dlclose(rl_handle);
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- rl_handle = NULL;
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- dlclose(hist_handle);
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- hist_handle = NULL;
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+ if (rl_handle) {
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+ dlclose(rl_handle);
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+ rl_handle = NULL;
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+ }
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+ if (hist_handle) {
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+ dlclose(hist_handle);
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+ hist_handle = NULL;
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+ }
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}
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}
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