From: Peng Tao <bergwolf@gmail.com>
Date: Thu, 8 Dec 2016 17:10:46 +0000 (+0800)
Subject: vhost-vsock: fix orphan connection reset
X-Git-Tag: v4.9~3^2~4
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=c4587631c7bad47c045e081d1553cd73a23be59a;p=linux-block.git

vhost-vsock: fix orphan connection reset

local_addr.svm_cid is host cid. We should check guest cid instead,
which is remote_addr.svm_cid. Otherwise we end up resetting all
connections to all guests.

Cc: stable@vger.kernel.org [4.8+]
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index e3b30ea9ece5..a504e2e003da 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -506,7 +506,7 @@ static void vhost_vsock_reset_orphans(struct sock *sk)
 	 * executing.
 	 */
 
-	if (!vhost_vsock_get(vsk->local_addr.svm_cid)) {
+	if (!vhost_vsock_get(vsk->remote_addr.svm_cid)) {
 		sock_set_flag(sk, SOCK_DONE);
 		vsk->peer_shutdown = SHUTDOWN_MASK;
 		sk->sk_state = SS_UNCONNECTED;