From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Hangyu Hua <hbh25y@gmail.com>,
        Sharath Srinivasan <sharath.srinivasan@oracle.com>,
        "David S. Miller" <davem@davemloft.net>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 33/71] rds: memory leak in __rds_conn_create()
Date:   Mon, 20 Dec 2021 15:34:22 +0100
Message-Id: <20211220143026.798180750@linuxfoundation.org>
In-Reply-To: <20211220143025.683747691@linuxfoundation.org>
References: <20211220143025.683747691@linuxfoundation.org>
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From: Hangyu Hua <hbh25y@gmail.com>

[ Upstream commit 5f9562ebe710c307adc5f666bf1a2162ee7977c0 ]

__rds_conn_create() did not release conn->c_path when loop_trans != 0 and
trans->t_prefer_loopback != 0 and is_outgoing == 0.

Fixes: aced3ce57cd3 ("RDS tcp loopback connection can hang")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Sharath Srinivasan <sharath.srinivasan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rds/connection.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/rds/connection.c b/net/rds/connection.c
index c85bd6340eaa7..92ff40e7a66cf 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -253,6 +253,7 @@ static struct rds_connection *__rds_conn_create(struct net *net,
 				 * should end up here, but if it
 				 * does, reset/destroy the connection.
 				 */
+				kfree(conn->c_path);
 				kmem_cache_free(rds_conn_slab, conn);
 				conn = ERR_PTR(-EOPNOTSUPP);
 				goto out;
-- 
2.33.0