linux-kernel - [PATCH AUTOSEL 5.18 74/93] Bluetooth: use memset avoid memory leaks

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Message-Id: <20220811154237.1531313-74-sashal@kernel.org>
Date:   Thu, 11 Aug 2022 11:42:08 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Xiaohui Zhang <xiaohuizhang@....edu.cn>,
        Marcel Holtmann <marcel@...tmann.org>,
        Sasha Levin <sashal@...nel.org>, johan.hedberg@...il.com,
        luiz.dentz@...il.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com,
        linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.18 74/93] Bluetooth: use memset avoid memory leaks

From: Xiaohui Zhang <xiaohuizhang@....edu.cn>

[ Upstream commit a5133fe87ed827ce94084eecb7830a6d451ef55c ]

Similar to the handling of l2cap_ecred_connect in commit d3715b2333e9
("Bluetooth: use memset avoid memory leaks"), we thought a patch
might be needed here as well.

Use memset to initialize structs to prevent memory leaks
in l2cap_le_connect

Signed-off-by: Xiaohui Zhang <xiaohuizhang@....edu.cn>
Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/bluetooth/l2cap_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ae78490ecd3d..09ecaf556de5 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1369,6 +1369,7 @@ static void l2cap_le_connect(struct l2cap_chan *chan)
 
 	l2cap_le_flowctl_init(chan, 0);
 
+	memset(&req, 0, sizeof(req));
 	req.psm     = chan->psm;
 	req.scid    = cpu_to_le16(chan->scid);
 	req.mtu     = cpu_to_le16(chan->imtu);
-- 
2.35.1