tree 7c2fab5b7c5ea52202919e83e0bb0e4801193c21
parent 532e15af105a0b86211f515bd5fec1f4cdd9f27b
author G. Campana <gcampana@quarkslab.com> 1484861866 +0200
committer Michael S. Tsirkin <mst@redhat.com> 1484862391 +0200

virtio_console: fix a crash in config_work_handler

Using control_work instead of config_work as the 3rd argument to
container_of results in an invalid portdev pointer. Indeed, the work
structure is initialized as below:

    INIT_WORK(&portdev->config_work, &config_work_handler);

It leads to a crash when portdev->vdev is dereferenced later. This
bug
is triggered when the guest uses a virtio-console without multiport
feature and receives a config_changed virtio interrupt.

Signed-off-by: G. Campana <gcampana@quarkslab.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>