From: Wichert Akkerman <wichert@wiggy.net>
To: Jim Nelson <james4765@verizon.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Question about /dev/mem and /dev/kmem
Date: Mon, 29 Nov 2004 13:36:29 +0100 [thread overview]
Message-ID: <20041129123629.GP31995@wiggy.net> (raw)
In-Reply-To: <41AAFE4E.7010308@verizon.net>
Previously Jim Nelson wrote:
> Isn't that /proc/sys/kernel/cap-bound?
yes, it is.
> And what stops an attacker who's already gained root from doing a "cat "0"
> > /proc/sys/kernel/cap-bound" ?
The fact that you are not allowed to change the cap-bound settings with
that specific bitmask.
Wichert.
--
Wichert Akkerman <wichert@wiggy.net> It is simple to make things.
http://www.wiggy.net/ It is hard to make things simple.
prev parent reply other threads:[~2004-11-29 12:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-29 3:57 Question about /dev/mem and /dev/kmem Jim Nelson
2004-11-29 4:45 ` Matan Peled
2004-11-29 8:04 ` Arjan van de Ven
2004-11-29 9:39 ` Wichert Akkerman
2004-11-29 10:47 ` Jim Nelson
2004-11-29 11:45 ` Alan Cox
2004-11-29 12:36 ` Wichert Akkerman [this message]
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