On 04/26/2016 11:07 AM, Daniel P. Berrange wrote:
On Wed, Apr 20, 2016 at 06:19:25PM -0400, Cole Robinson wrote:
> Currently we only allow /dev/random and /dev/hwrng as host input
> for <rng><backend model='random'/> device. This was added after
> various upstream discussions in commit 4932ef45
>
> However this restriction has generated quite a few complaints over
> the years, so a new discussion was initiated:
>
>
http://www.redhat.com/archives/libvir-list/2016-April/msg00987.html
>
> Several people suggested removing the restriction, and nobody really
> spoke up to defend it. So this patch drops the path restriction
> entirely
ACK, despite explicit request for details, no one has been able to
give a clear description of a security problem in using urandom.
It has all just been hand-wavey assertions with nothing to back
it up, against other people's analysis showing urandom to be safe.