I created a test account, and added that test account to more than
NGROUPS_MAX groups, which is 16.  This seems to cause initgroups to
return -1, which causes problems for (at least) both sshd and
telnetd.  Is this intended behavior?  If not, I believe that I have
found (at least part of) the problem in getgrouplist.c, and can
send-pr.

-- 
Tim Bandy (bandy@timn8r.org)

Thank goodness modern convenience is a thing of the remote future.
                -- Pogo, by Walt Kelly