[Bug 261681] [dhclient] SIGFPE occurs when backoff-cutoff is set to zero

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 02 Feb 2022 17:35:17 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261681

            Bug ID: 261681
           Summary: [dhclient] SIGFPE occurs when backoff-cutoff is set to
                    zero
           Product: Base System
           Version: 12.2-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: bsdpr@phoe.frmug.org

When setting backoff-cutoff to zero in dhclient.conf, dhclient dies immediately
after launch. A division by zero is probably the cause, this means that
parameters set in the config file are improperly nor not validated.

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