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Re: Potential DoS in *BSD user-ppp

To: tech_(_at_)_openbsd_(_dot_)_org
Subject: Re: Potential DoS in *BSD user-ppp
From: Jim Rees <rees_(_at_)_umich_(_dot_)_edu>
Date: Tue, 17 Apr 2001 11:52:36 -0400

  This looks like a problem in the cy driver.  AFAIK it should be 
  impossible to open cuaXX if ttyXX is open, but I don't see where in 
  the driver this is enforced.

It's not.  cyopen looks a lot like comopen did before I fixed it.  I suspect
both were derived from the same broken source at some time in the past.

It wouldn't be hard to copy the relevant parts from comopen to fix this, but
I don't have any Cyclades cards either so I can't do it.

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