linux-kernel - [PATCH] Bluetooth: use memset avoid memory leaks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20251107022102.266003-1-13875017792@163.com>
Date: Fri,  7 Nov 2025 10:21:02 +0800
From: Gongwei Li <13875017792@....com>
To: marcel@...tmann.org
Cc: johan.hedberg@...il.com,
	luiz.dentz@...il.com,
	linux-bluetooth@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Gongwei Li <ligongwei@...inos.cn>
Subject: [PATCH] Bluetooth: use memset avoid memory leaks

From: Gongwei Li <ligongwei@...inos.cn>

Similar to the handling of l2cap_le_connect in commit a5133fe87ed8
("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_rsp_defer.

Signed-off-by: Gongwei Li <ligongwei@...inos.cn>
---
 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 d08320380..b987ba5de 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3786,6 +3786,7 @@ void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan)
 
 	BT_DBG("chan %p", chan);
 
+	memset(&rsp, 0, sizeof(rsp));
 	rsp.dcid    = cpu_to_le16(chan->scid);
 	rsp.mtu     = cpu_to_le16(chan->imtu);
 	rsp.mps     = cpu_to_le16(chan->mps);
-- 
2.25.1