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Re: [Qemu-devel] [PATCH] virtio: check vring descriptor buffer length
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] [PATCH] virtio: check vring descriptor buffer length |
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Date: |
Thu, 28 Jul 2016 09:34:39 +0100 |
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User-agent: |
Mutt/1.6.2 (2016-07-01) |
On Wed, Jul 27, 2016 at 09:07:56PM +0530, P J P wrote:
> From: Prasad J Pandit <address@hidden>
>
> virtio back end uses set of buffers to facilitate I/O operations.
> An infinite loop unfolds in virtqueue_pop() if a buffer was
> of zero size. Add check to avoid it.
>
> Reported-by: Li Qiang <address@hidden>
> Signed-off-by: Prasad J Pandit <address@hidden>
> ---
> hw/virtio/virtio.c | 5 +++++
> 1 file changed, 5 insertions(+)
Reviewed-by: Stefan Hajnoczi <address@hidden>
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