From: Nathan Lynch <ntl@pobox.com>
To: Greg KH <greg@kroah.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sysfs-related oops during module unload (2.6.16-rc2)
Date: Mon, 20 Feb 2006 23:50:39 -0600 [thread overview]
Message-ID: <20060221055039.GG3293@localhost.localdomain> (raw)
In-Reply-To: <20060219005716.GA5800@kroah.com>
Greg KH wrote:
> On Sat, Feb 18, 2006 at 06:47:51PM -0600, Nathan Lynch wrote:
> > Sorry for the delay.
> >
> > Tested against 2.6.16-rc4-ish, and it seems to do the right thing --
> > modprobe -r says the module is busy while the refcnt attribute is
> > open. The module is allowed to unload once the file is closed.
>
> Great, thanks for trying it out and letting me know.
Sure -- do you plan to push this for 2.6.16?
The reason I ask is that the refcnt attribute is world-readable, so a
malicious or silly user can keep the file open until an unwitting
superuser unloads a module...
Far-fetched, I suppose, but I just wanted to make this scenario clear.
Nathan
next prev parent reply other threads:[~2006-02-21 5:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-11 22:03 sysfs-related oops during module unload (2.6.16-rc2) Nathan Lynch
2006-02-11 22:45 ` Greg KH
2006-02-12 5:27 ` Nathan Lynch
2006-02-12 5:38 ` Greg KH
2006-02-16 21:50 ` Greg KH
[not found] ` <200602162253.45621.dtor_core@ameritech.net>
2006-02-18 0:36 ` Greg KH
2006-02-19 0:47 ` Nathan Lynch
2006-02-19 0:57 ` Greg KH
2006-02-21 5:50 ` Nathan Lynch [this message]
2006-02-21 6:12 ` Greg KH
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