netdev - [PATCH RFC net-next v4 06/12] vsock/virtio: use the global netns

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

Message-Id: <20250805-vsock-vmtest-v4-6-059ec51ab111@meta.com>
Date: Tue, 05 Aug 2025 14:49:14 -0700
From: Bobby Eshleman <bobbyeshleman@...il.com>
To: Stefano Garzarella <sgarzare@...hat.com>, Shuah Khan <shuah@...nel.org>, 
 "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>, Stefan Hajnoczi <stefanha@...hat.com>, 
 "Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, 
 Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, 
 Eugenio Pérez <eperezma@...hat.com>, 
 "K. Y. Srinivasan" <kys@...rosoft.com>, 
 Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, 
 Dexuan Cui <decui@...rosoft.com>, Bryan Tan <bryan-bt.tan@...adcom.com>, 
 Vishnu Dasa <vishnu.dasa@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>
Cc: virtualization@...ts.linux.dev, netdev@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
 kvm@...r.kernel.org, linux-hyperv@...r.kernel.org, 
 Bobby Eshleman <bobbyeshleman@...il.com>, berrange@...hat.com, 
 Bobby Eshleman <bobbyeshleman@...a.com>
Subject: [PATCH RFC net-next v4 06/12] vsock/virtio: use the global netns

From: Bobby Eshleman <bobbyeshleman@...a.com>

This changes virtio-vsock to always use the global netns dummy so that
all guest vsock continues to operate in global mode. The guest vsock
behavior is unchanged.

Signed-off-by: Bobby Eshleman <bobbyeshleman@...a.com>
---
 net/vmw_vsock/virtio_transport.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index f0e48e6911fc..25c1bca7b136 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -536,7 +536,7 @@ static bool virtio_transport_msgzerocopy_allow(void)
 	return true;
 }

-static bool virtio_transport_seqpacket_allow(u32 remote_cid);
+static bool virtio_transport_seqpacket_allow(struct vsock_sock *vsk, u32 remote_cid);

 static struct virtio_transport virtio_transport = {
 	.transport = {
@@ -593,7 +593,7 @@ static struct virtio_transport virtio_transport = {
 	.can_msgzerocopy = virtio_transport_can_msgzerocopy,
 };

-static bool virtio_transport_seqpacket_allow(u32 remote_cid)
+static bool virtio_transport_seqpacket_allow(struct vsock_sock *vsk, u32 remote_cid)
 {
 	struct virtio_vsock *vsock;
 	bool seqpacket_allow;
@@ -649,6 +649,7 @@ static void virtio_transport_rx_work(struct work_struct *work)
 			}

 			virtio_vsock_skb_rx_put(skb);
+			virtio_vsock_skb_set_net(skb, vsock_global_net());
 			virtio_transport_deliver_tap_pkt(skb);
 			virtio_transport_recv_pkt(&virtio_transport, skb);
 		}

-- 
2.47.3