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Re: [PATCH] virtio_console: fix a crash in config_work_handler

From Amit Shah <amit.shah@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH] virtio_console: fix a crash in config_work_handler
Date 2017-01-16 04:40 +0100
Message-ID <t06jf-2Xg-9@gated-at.bofh.it> (permalink)
References <sZudY-4VP-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On (Sat) 14 Jan 2017 [11:38:39], 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.

Thanks, the patch is fine, but needs signed-off-by.

Please also post to virtualization@lists.linux-foundation.org


		Amit

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Thread

[PATCH] virtio_console: fix a crash in config_work_handler "G. Campana" <gcampana@quarkslab.com> - 2017-01-14 12:00 +0100
  Re: [PATCH] virtio_console: fix a crash in config_work_handler Amit Shah <amit.shah@redhat.com> - 2017-01-16 04:40 +0100
    [PATCH v2] virtio_console: fix a crash in config_work_handler "G. Campana" <gcampana@quarkslab.com> - 2017-01-16 10:50 +0100
      Re: [PATCH v2] virtio_console: fix a crash in config_work_handler Amit Shah <amit.shah@redhat.com> - 2017-01-16 11:30 +0100
        Re: [PATCH v2] virtio_console: fix a crash in config_work_handler "Michael S. Tsirkin" <mst@redhat.com> - 2017-01-16 14:40 +0100

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