linux-kernel - [PATCH 5.14 321/432] selftests: nci: Fix the wrong condition

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Message-Id: <20210916155821.715046682@linuxfoundation.org>
Date:   Thu, 16 Sep 2021 18:01:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Bongsu Jeon <bongsu.jeon@...sung.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.14 321/432] selftests: nci: Fix the wrong condition

From: Bongsu Jeon <bongsu.jeon@...sung.com>

[ Upstream commit 1d5b8d01db98abb8c176838fad73287366874582 ]

memcpy should be executed only in case nla_len's value is greater than 0.

Signed-off-by: Bongsu Jeon <bongsu.jeon@...sung.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/nci/nci_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/nci/nci_dev.c b/tools/testing/selftests/nci/nci_dev.c
index 9687100f15ea..acd4125ff39f 100644
--- a/tools/testing/selftests/nci/nci_dev.c
+++ b/tools/testing/selftests/nci/nci_dev.c
@@ -110,7 +110,7 @@ static int send_cmd_mt_nla(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
 		na->nla_type = nla_type[cnt];
 		na->nla_len = nla_len[cnt] + NLA_HDRLEN;
 
-		if (nla_len > 0)
+		if (nla_len[cnt] > 0)
 			memcpy(NLA_DATA(na), nla_data[cnt], nla_len[cnt]);
 
 		prv_len = NLA_ALIGN(nla_len[cnt]) + NLA_HDRLEN;
-- 
2.30.2