linux-kernel - [PATCH AUTOSEL 4.14 06/13] HSI: ssi_protocol: fix potential resource leak in ssip_pn

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 for Android: free password hash cracker in your pocket

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

Message-Id: <20221013002716.1895839-6-sashal@kernel.org>
Date:   Wed, 12 Oct 2022 20:27:05 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Jianglei Nie <niejianglei2021@....com>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Sasha Levin <sashal@...nel.org>, sre@...nel.org,
        wangqing@...o.com, kuba@...nel.org
Subject: [PATCH AUTOSEL 4.14 06/13] HSI: ssi_protocol: fix potential resource leak in ssip_pn_open()

From: Jianglei Nie <niejianglei2021@....com>

[ Upstream commit b28dbcb379e6a7f80262c2732a57681b1ee548ca ]

ssip_pn_open() claims the HSI client's port with hsi_claim_port(). When
hsi_register_port_event() gets some error and returns a negetive value,
the HSI client's port should be released with hsi_release_port().

Fix it by calling hsi_release_port() when hsi_register_port_event() fails.

Signed-off-by: Jianglei Nie <niejianglei2021@....com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/hsi/clients/ssi_protocol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c
index 93d28c0ec8bf..7fe3639c2826 100644
--- a/drivers/hsi/clients/ssi_protocol.c
+++ b/drivers/hsi/clients/ssi_protocol.c
@@ -932,6 +932,7 @@ static int ssip_pn_open(struct net_device *dev)
 	if (err < 0) {
 		dev_err(&cl->device, "Register HSI port event failed (%d)\n",
 			err);
+		hsi_release_port(cl);
 		return err;
 	}
 	dev_dbg(&cl->device, "Configuring SSI port\n");
-- 
2.35.1