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Re: [Xen-devel] [PATCH v3 10/25] usb-redir: Verify usbredirparser_write get called with positive count
- To: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
- From: Gerd Hoffmann <kraxel@xxxxxxxxxx>
- Date: Wed, 20 Feb 2019 08:32:56 +0100
- Cc: Li Zhijian <lizhijian@xxxxxxxxxxxxxx>, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Jason Wang <jasowang@xxxxxxxxxx>, qemu-devel@xxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>, Halil Pasic <pasic@xxxxxxxxxxxxx>, Christian Borntraeger <borntraeger@xxxxxxxxxx>, Anthony Perard <anthony.perard@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Corey Minyard <minyard@xxxxxxx>, Amit Shah <amit@xxxxxxxxxx>, Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>, qemu-s390x@xxxxxxxxxx, Paul Durrant <paul.durrant@xxxxxxxxxx>, Pavel Dovgalyuk <pavel.dovgaluk@xxxxxxxxx>, Zhang Chen <zhangckid@xxxxxxxxx>, David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>, Prasad J Pandit <pjp@xxxxxxxxxxxxxxxxx>, Cornelia Huck <cohuck@xxxxxxxxxx>, qemu-ppc@xxxxxxxxxx, Paolo Bonzini <pbonzini@xxxxxxxxxx>, Stefan Berger <stefanb@xxxxxxxxxxxxx>
- Delivery-date: Wed, 20 Feb 2019 07:33:51 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Wed, Feb 20, 2019 at 02:02:17AM +0100, Philippe Mathieu-Daudé wrote:
> The usbredirparser_write handler should never be called with a negative
> size payload, return an error if this is not the case.
> Now that we are sure the 'count' value is positive, make it obvious by
> casting it to a size_t.
Reviewed-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
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