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Date:      Tue, 4 Apr 2000 20:39:39 +0100 (BST)
From:      Doug Rabson <dfr@nlsystems.com>
To:        Nick Hibma <n_hibma@calcaphon.com>
Cc:        Bill Fumerola <billf@chc-chimes.com>, Warner Losh <imp@village.org>, "Jonathan M. Bresler" <jmb@freebsd.org>, cvs-committers@freebsd.org, cvs-all@freebsd.org
Subject:   Re: cvs commit: src/sys/dev/usb usb.h src/usr.sbin/usbd usbd.c
Message-ID:  <Pine.BSF.4.21.0004042039150.250-100000@salmon.nlsystems.com>
In-Reply-To: <Pine.BSF.4.20.0004040942050.21207-100000@localhost>

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On Tue, 4 Apr 2000, Nick Hibma wrote:

> > > Since this is userland, I assume that the autoload will happen only if
> > > the security level will allow it?  If not, there's a problem here.
> > 
> > FYI, I'm pretty sure the same technique is used when ifconfig(8)ing a interface
> > that isn't loaded, or running vinum(8) without it in the kernel, etc.
> > 
> > If this is allowed, it's kldload() to blame, not usbd/ifconfig/vinum
> 
> It is definitely true that kldload should enforce the security settings,
> not userland utils (that are straightforward to write).

kldload(2) will refuse to load the module if the securelevel is raised.

--
Doug Rabson				Mail:  dfr@nlsystems.com
Nonlinear Systems Ltd.			Phone: +44 181 442 9037




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