|
 |
432cb7 |
From f0115d856f46e65e3b62896f84fe1902a958bf79 Mon Sep 17 00:00:00 2001
|
|
|
432cb7 |
From: Jon Maloy <jmaloy@redhat.com>
|
|
|
432cb7 |
Date: Tue, 22 Mar 2022 19:23:36 -0400
|
|
|
432cb7 |
Subject: [PATCH 04/18] hw/virtio: vdpa: Fix leak of host-notifier
|
|
|
432cb7 |
memory-region
|
|
|
432cb7 |
|
|
|
432cb7 |
RH-Author: Jon Maloy <jmaloy@redhat.com>
|
|
|
432cb7 |
RH-MergeRequest: 132: hw/virtio: vdpa: Fix leak of host-notifier memory-region
|
|
|
432cb7 |
RH-Commit: [1/1] b3cec35d185e3b9844a458f5c51c5d5ef7e3d8f1 (jmaloy/qemu-kvm)
|
|
|
432cb7 |
RH-Bugzilla: 2060843
|
|
|
432cb7 |
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
|
|
|
432cb7 |
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
|
|
|
432cb7 |
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
|
|
|
432cb7 |
|
|
|
432cb7 |
BZ: https://bugzilla.redhat.com/2060843
|
|
|
432cb7 |
UPSTREAM: no
|
|
|
432cb7 |
BREW: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=44038138
|
|
|
432cb7 |
|
|
|
432cb7 |
commit 98f7607ecda00dea3cbb2ed7b4427c96846efb83
|
|
|
432cb7 |
Author: Laurent Vivier <lvivier@redhat.com>
|
|
|
432cb7 |
Date: Fri Feb 11 18:02:59 2022 +0100
|
|
|
432cb7 |
|
|
|
432cb7 |
hw/virtio: vdpa: Fix leak of host-notifier memory-region
|
|
|
432cb7 |
|
|
|
432cb7 |
If call virtio_queue_set_host_notifier_mr fails, should free
|
|
|
432cb7 |
host-notifier memory-region.
|
|
|
432cb7 |
|
|
|
432cb7 |
This problem can trigger a coredump with some vDPA drivers (mlx5,
|
|
|
432cb7 |
but not with the vdpasim), if we unplug the virtio-net card from
|
|
|
432cb7 |
the guest after a stop/start.
|
|
|
432cb7 |
|
|
|
432cb7 |
The same fix has been done for vhost-user:
|
|
|
432cb7 |
1f89d3b91e3e ("hw/virtio: Fix leak of host-notifier memory-region")
|
|
|
432cb7 |
|
|
|
432cb7 |
Fixes: d0416d487bd5 ("vhost-vdpa: map virtqueue notification area if possible")
|
|
|
432cb7 |
Cc: jasowang@redhat.com
|
|
|
432cb7 |
Resolves: https://bugzilla.redhat.com/2027208
|
|
|
432cb7 |
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
|
|
|
432cb7 |
Message-Id: <20220211170259.1388734-1-lvivier@redhat.com>
|
|
|
432cb7 |
Cc: qemu-stable@nongnu.org
|
|
|
432cb7 |
Acked-by: Jason Wang <jasowang@redhat.com>
|
|
|
432cb7 |
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
|
|
|
432cb7 |
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
|
|
|
432cb7 |
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
|
|
432cb7 |
|
|
|
432cb7 |
(cherry picked from commit 98f7607ecda00dea3cbb2ed7b4427c96846efb83)
|
|
|
432cb7 |
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
|
|
|
432cb7 |
---
|
|
|
432cb7 |
hw/virtio/vhost-vdpa.c | 1 +
|
|
|
432cb7 |
1 file changed, 1 insertion(+)
|
|
|
432cb7 |
|
|
|
432cb7 |
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
|
|
|
432cb7 |
index bcaf00e09f..78da48a333 100644
|
|
|
432cb7 |
--- a/hw/virtio/vhost-vdpa.c
|
|
|
432cb7 |
+++ b/hw/virtio/vhost-vdpa.c
|
|
|
432cb7 |
@@ -415,6 +415,7 @@ static int vhost_vdpa_host_notifier_init(struct vhost_dev *dev, int queue_index)
|
|
|
432cb7 |
g_free(name);
|
|
|
432cb7 |
|
|
|
432cb7 |
if (virtio_queue_set_host_notifier_mr(vdev, queue_index, &n->mr, true)) {
|
|
|
432cb7 |
+ object_unparent(OBJECT(&n->mr));
|
|
|
432cb7 |
munmap(addr, page_size);
|
|
|
432cb7 |
goto err;
|
|
|
432cb7 |
}
|
|
|
432cb7 |
--
|
|
|
432cb7 |
2.27.0
|
|
|
432cb7 |
|