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Bug#336220: xdm: bogus /dev/mem access lead to trouble on arm platforms



Lennert Buytenhek wrote:
> The problem is not that xdm doesn't check /dev/urandom first, the
> problem is that it reads from /dev/mem _at all_.
>
> It is possible that checking /dev/urandom first masks the problem
> in most configurations, but it doesn't solve it (if you don't have
> /dev/random and /dev/urandom in your filesystem for whatever reason,
> you still oops.)
>   


Right, but still, having a workaround when /dev/urandom exists is much
better than having xdm broken on all arm. So, do you know if
/dev/urandom is more often (always?) available on arm than /dev/random?
What about the machine where you had the original bug?

Brice





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