35 lines
916 B
Diff
35 lines
916 B
Diff
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From c0a66f76f9c5b2ed0c2f20d1b59b4715f10a60f7 Mon Sep 17 00:00:00 2001
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From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
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Date: Wed, 30 Jun 2021 16:27:24 +0800
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Subject: [PATCH 33/46] ext2ed: fix potential NULL pointer dereference in
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dupstr()
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Content-Type: text/plain
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In dupstr(), we should check return value of malloc().
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Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
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Signed-off-by: Wu Guanghao <wuguanghao3@huawei.com>
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Reviewed-by: Wu Bo <wubo40@huawei.com>
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Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Signed-off-by: Lukas Czerner <lczerner@redhat.com>
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---
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ext2ed/main.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/ext2ed/main.c b/ext2ed/main.c
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index f7e7d7df..9d33a8e1 100644
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--- a/ext2ed/main.c
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+++ b/ext2ed/main.c
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@@ -524,6 +524,8 @@ char *dupstr (char *src)
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char *ptr;
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ptr=(char *) malloc (strlen (src)+1);
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+ if (!ptr)
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+ return NULL;
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strcpy (ptr,src);
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return (ptr);
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}
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--
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2.35.1
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