netdev - [RFC PATCH 09/13] hv_sock: set VMADDR_CID_HOST in the hvs_remote_addr

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]

Date:   Fri, 27 Sep 2019 13:26:59 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     netdev@...r.kernel.org
Cc:     linux-hyperv@...r.kernel.org,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        virtualization@...ts.linux-foundation.org,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Jason Wang <jasowang@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Jorgen Hansen <jhansen@...are.com>
Subject: [RFC PATCH 09/13] hv_sock: set VMADDR_CID_HOST in the hvs_remote_addr_init()

Remote peer is always the host, so we set VMADDR_CID_HOST as
remote CID instead of VMADDR_CID_ANY.

Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>
---
 net/vmw_vsock/hyperv_transport.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c
index 4f47af2054dd..306310794522 100644
--- a/net/vmw_vsock/hyperv_transport.c
+++ b/net/vmw_vsock/hyperv_transport.c
@@ -186,7 +186,8 @@ static void hvs_remote_addr_init(struct sockaddr_vm *remote,
 	static u32 host_ephemeral_port = MIN_HOST_EPHEMERAL_PORT;
 	struct sock *sk;
 
-	vsock_addr_init(remote, VMADDR_CID_ANY, VMADDR_PORT_ANY);
+	/* Remote peer is always the host */
+	vsock_addr_init(remote, VMADDR_CID_HOST, VMADDR_PORT_ANY);
 
 	while (1) {
 		/* Wrap around ? */
-- 
2.21.0