netdev - [PATCH] libertas: fix memory leak in lbs_init

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

Message-ID: <20221208121448.2845986-1-shaozhengchao@huawei.com>
Date:   Thu, 8 Dec 2022 20:14:48 +0800
From:   Zhengchao Shao <shaozhengchao@...wei.com>
To:     <libertas-dev@...ts.infradead.org>,
        <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <kvalo@...nel.org>, <davem@...emloft.net>, <edumazet@...gle.com>,
        <kuba@...nel.org>, <pabeni@...hat.com>
CC:     <johannes.berg@...el.com>, <dcbw@...hat.com>,
        <linville@...driver.com>, <hs4233@...l.mn-solutions.de>,
        <weiyongjun1@...wei.com>, <yuehaibing@...wei.com>,
        <shaozhengchao@...wei.com>
Subject: [PATCH] libertas: fix memory leak in lbs_init_adapter()

When kfifo_alloc() failed in lbs_init_adapter(), cmd buffer is not
released. Add free memory to processing error path.

Fixes: 7919b89c8276 ("libertas: convert libertas driver to use an event/cmdresp queue")
Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
---
 drivers/net/wireless/marvell/libertas/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/marvell/libertas/main.c b/drivers/net/wireless/marvell/libertas/main.c
index 8f5220cee112..ae975304cfcf 100644
--- a/drivers/net/wireless/marvell/libertas/main.c
+++ b/drivers/net/wireless/marvell/libertas/main.c
@@ -869,6 +869,7 @@ static int lbs_init_adapter(struct lbs_private *priv)
 	ret = kfifo_alloc(&priv->event_fifo, sizeof(u32) * 16, GFP_KERNEL);
 	if (ret) {
 		pr_err("Out of memory allocating event FIFO buffer\n");
+		lbs_free_cmd_buffer(priv);
 		goto out;
 	}
 
-- 
2.34.1