From: Andrea Arcangeli <andrea@suse.de>
To: Chris Wright <chrisw@osdl.org>
Cc: Rik van Riel <riel@redhat.com>,
Arjan van de Ven <arjanv@redhat.com>,
linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: [patch] mlock-as-nonroot revisted
Date: Wed, 4 Aug 2004 04:18:24 +0200 [thread overview]
Message-ID: <20040804021824.GU2241@dualathlon.random> (raw)
In-Reply-To: <20040803190730.A1924@build.pdx.osdl.net>
On Tue, Aug 03, 2004 at 07:07:30PM -0700, Chris Wright wrote:
> I think it's no different from current behaviour. Which for fs based
> allocations is only guarded by fsuid and max_huge_pages.
sorry, what does prevent people from creating a 2M file, filling it with
pagefaults, closing creating another one and so on? Either "this"
accounting is applied to hugetlb files too or it's insecure.
Now if they didn't change the creation of the hugetlb files to be
allowed if the rlimit is !=0 then it wouldn't be insecure, but they
changed that in the first patch.
could you post a final patch once you're ready so that I will apply and
verify that I can exploit it? If it doesn't break it'll be still messed
up w.r.t. chown semantics (a true quota would get that right).
next prev parent reply other threads:[~2004-08-04 2:18 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-29 10:03 Arjan van de Ven
2004-07-29 21:28 ` Andrew Morton
2004-07-29 21:40 ` Andrea Arcangeli
2004-07-30 0:50 ` Rik van Riel
2004-07-30 2:16 ` Andrea Arcangeli
2004-07-30 0:51 ` Rik van Riel
2004-07-30 2:17 ` Andrea Arcangeli
2004-07-30 1:52 ` Chris Wright
2004-07-30 2:09 ` Andrea Arcangeli
2004-07-30 2:46 ` Rik van Riel
2004-08-03 20:54 ` Rik van Riel
2004-08-03 21:45 ` Chris Wright
2004-08-03 20:55 ` Rik van Riel
2004-08-03 21:07 ` Andrea Arcangeli
2004-08-03 21:13 ` Arjan van de Ven
2004-08-03 21:36 ` Andrea Arcangeli
2004-08-03 21:38 ` Arjan van de Ven
2004-08-03 21:51 ` Andrea Arcangeli
2004-08-03 22:01 ` Chris Wright
2004-08-03 22:11 ` Andrea Arcangeli
2004-08-03 22:33 ` Chris Wright
2004-08-03 22:42 ` Andrea Arcangeli
2004-08-03 22:52 ` Chris Wright
2004-08-04 1:21 ` Rik van Riel
2004-08-04 1:53 ` Andrea Arcangeli
2004-08-04 2:01 ` Rik van Riel
2004-08-04 2:13 ` Andrea Arcangeli
2004-08-04 2:20 ` William Lee Irwin III
2004-08-04 2:22 ` Rik van Riel
2004-08-04 2:31 ` William Lee Irwin III
2004-08-04 2:56 ` Rik van Riel
2004-08-04 6:06 ` Chris Wright
2004-08-04 13:31 ` Rik van Riel
2004-08-04 13:51 ` Arjan van de Ven
2004-08-04 13:56 ` Rik van Riel
2004-08-04 3:13 ` Andrea Arcangeli
2004-08-04 2:25 ` Chris Wright
2004-08-04 2:07 ` Chris Wright
2004-08-04 2:18 ` Andrea Arcangeli [this message]
2004-08-03 21:13 ` Rik van Riel
2004-08-03 21:22 ` Andrea Arcangeli
2004-08-03 21:24 ` Arjan van de Ven
2004-08-03 21:31 ` Rik van Riel
2004-08-03 21:39 ` Andrea Arcangeli
2004-08-04 1:56 ` William Lee Irwin III
2004-08-03 22:18 ` Gerrit Huizenga
2004-08-04 1:22 ` Rik van Riel
2004-08-04 1:37 ` Gerrit Huizenga
2004-08-04 1:55 ` William Lee Irwin III
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