netdev - [PATCH net 3/4] virtio/vsock: Improve MSG

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Message-Id: <20241106-vsock-mem-leaks-v1-3-8f4ffc3099e6@rbox.co>
Date: Wed, 06 Nov 2024 18:51:20 +0100
From: Michal Luczaj <mhal@...x.co>
To: Stefan Hajnoczi <stefanha@...hat.com>, 
 Stefano Garzarella <sgarzare@...hat.com>, 
 "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, 
 Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, 
 Eugenio Pérez <eperezma@...hat.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Simon Horman <horms@...nel.org>, Jia He <justin.he@....com>, 
 Arseniy Krasnov <avkrasnov@...utedevices.com>, 
 Dmitry Torokhov <dtor@...are.com>, Andy King <acking@...are.com>, 
 George Zhang <georgezhang@...are.com>
Cc: kvm@...r.kernel.org, virtualization@...ts.linux.dev, 
 netdev@...r.kernel.org, Michal Luczaj <mhal@...x.co>
Subject: [PATCH net 3/4] virtio/vsock: Improve MSG_ZEROCOPY error handling

Add a missing kfree_skb() to prevent memory leaks.

Fixes: 581512a6dc93 ("vsock/virtio: MSG_ZEROCOPY flag support")
Signed-off-by: Michal Luczaj <mhal@...x.co>
---
 net/vmw_vsock/virtio_transport_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index cd075f608d4f6f48f894543e5e9c966d3e5f22df..e2e6a30b759bdc6371bb0d63ee2e77c0ba148fd2 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -400,6 +400,7 @@ static int virtio_transport_send_pkt_info(struct vsock_sock *vsk,
 			if (virtio_transport_init_zcopy_skb(vsk, skb,
 							    info->msg,
 							    can_zcopy)) {
+				kfree_skb(skb);
 				ret = -ENOMEM;
 				break;
 			}

-- 
2.46.2