linux-kernel - [PATCH] RDMA/cm: Fix memory leak in ib_cm_insert

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: <20220621052546.4821-1-linmq006@gmail.com>
Date:   Tue, 21 Jun 2022 09:25:44 +0400
From:   Miaoqian Lin <linmq006@...il.com>
To:     Jason Gunthorpe <jgg@...pe.ca>, Leon Romanovsky <leon@...nel.org>,
        Mark Zhang <markzhang@...dia.com>,
        Maor Gottlieb <maorg@...dia.com>,
        Weihang Li <liweihang@...wei.com>,
        Wenpeng Liang <liangwenpeng@...wei.com>,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     linmq006@...il.com
Subject: [PATCH] RDMA/cm: Fix memory leak in ib_cm_insert_listen

cm_alloc_id_priv() allocates resource for cm_id_priv.
when cm_init_listen() fails, it doesn't free it,
leading to memory leak. call ib_destroy_cm_id() to fix this.

Fixes: 98f67156a80f ("RDMA/cm: Simplify establishing a listen cm_id")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 drivers/infiniband/core/cm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 1c107d6d03b9..b985e0d9bc05 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1252,8 +1252,10 @@ struct ib_cm_id *ib_cm_insert_listen(struct ib_device *device,
 		return ERR_CAST(cm_id_priv);
 
 	err = cm_init_listen(cm_id_priv, service_id, 0);
-	if (err)
+	if (err) {
+		ib_destroy_cm_id(&cm_id_priv->id);
 		return ERR_PTR(err);
+	}
 
 	spin_lock_irq(&cm_id_priv->lock);
 	listen_id_priv = cm_insert_listen(cm_id_priv, cm_handler);
-- 
2.25.1