[libvirt] [PATCH v2] qemu: Fix crash on failed VM startup

[Eric Blake]

On 06/02/2010 08:55 AM, Cole Robinson wrote:
> If VM startup fails early enough (can't find a referenced USB device),
> libvirtd will crash trying to clear the VNC port bit, since port = 0,
> which overflows us out of the bitmap bounds.
> 
> Fix this by being more defensive in the bitmap operations, and only
> clearing a previously set VNC port.
> 
> v2: Add safety check to all relevant bitmap ops.

ACK.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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