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Date:   Mon, 16 Jan 2017 15:57:23 +0530
From:   Amit Shah <>
To:     "G. Campana" <>
Cc:,, "Michael S. Tsirkin" <>
Subject: Re: [PATCH v2] virtio_console: fix a crash in config_work_handler

On (Mon) 16 Jan 2017 [10:45:02], G. Campana wrote:
> 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 <>

Reviewed-by: Amit Shah <>

Michael, can you please pick this up?


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