Re: drivers/char/random.c: more ruminations

[George Spelvin]

> It's not something where if the changes required massive changes, that
> I'd necessarily feel the need to backport them to stable.  It's a
> certificational weakness, but it's a not disaster.

Agreed!  It's been there for years, and I'm not too worried.  It takes
a pretty tight race to cause the problem in the first place.

As you note, it only happens with a full pool (already a very secure
situation), and the magnitude is limited by the size of entropy additions,
which are normally small.

I'm just never happy with bugs in security-critical code.  "I don't
think that bug is exploitable" is almost as ominous a phrase as "Y'all
watch this!"
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