From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jan Kara <jack@suse.cz>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
Bodo Eggert <7eggert@gmx.de>, Diego Calleja <diegocg@gmail.com>,
Jiri Kosina <jkosina@suse.cz>, Michal Hocko <mhocko@suse.cz>,
Meelis Roos <mroos@linux.ee>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: file offset corruption on 32-bit machines?
Date: Mon, 14 Apr 2008 17:54:52 +0100 [thread overview]
Message-ID: <20080414175452.27c3652d@core> (raw)
In-Reply-To: <20080414165354.GF15824@duck.suse.cz>
> Well, but imagine you have a file /proc/my_secret_file from which you
> are able to read from position A:a and B:b but not from position
> A:b. Concievably, checks for the file position could be bypassed because of
> this race... I know this is kind of dumb example but I can imagine someone
Unlikely as the ppos passed to the driver is a private copy and the user
could equally use pread/pwrite to specify that offset.
next prev parent reply other threads:[~2008-04-14 16:59 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <agh4d-6yc-35@gated-at.bofh.it>
[not found] ` <ah5tY-3lR-7@gated-at.bofh.it>
[not found] ` <ah5DA-3X9-9@gated-at.bofh.it>
[not found] ` <ah5X5-4tl-13@gated-at.bofh.it>
[not found] ` <ah66A-4Nk-7@gated-at.bofh.it>
[not found] ` <ah7vN-7Wz-9@gated-at.bofh.it>
2008-04-11 12:24 ` file offset corruption on 32-bit machines? Bodo Eggert
2008-04-11 13:55 ` Lennart Sorensen
2008-04-11 16:59 ` Bryan Henderson
2008-04-11 17:15 ` Lennart Sorensen
2008-04-11 21:29 ` Bryan Henderson
2008-04-12 8:48 ` Pavel Machek
2008-04-14 16:20 ` Jan Kara
2008-04-14 16:22 ` Lennart Sorensen
2008-04-14 16:53 ` Jan Kara
2008-04-14 16:54 ` Alan Cox [this message]
2008-04-14 18:34 ` Alexey Dobriyan
2008-04-14 17:06 ` Lennart Sorensen
2008-04-14 19:03 ` Jan Kara
2008-04-14 19:29 ` Lennart Sorensen
2008-04-14 19:42 ` Jan Kara
2008-04-14 19:45 ` Lennart Sorensen
2008-04-15 8:57 ` Pavel Machek
2008-04-15 15:32 ` Lennart Sorensen
2008-04-15 17:34 ` Pavel Machek
2008-04-15 18:24 ` Lennart Sorensen
2008-04-15 19:12 ` Pavel Machek
2008-04-15 19:49 ` Lennart Sorensen
2008-04-15 20:06 ` Pavel Machek
2008-04-15 20:28 ` Peter Zijlstra
2008-04-16 8:15 ` Pavel Machek
2008-04-16 8:20 ` Peter Zijlstra
2008-04-16 10:54 ` Alan Cox
2008-04-16 13:57 ` Lennart Sorensen
2008-04-15 20:29 ` Lennart Sorensen
2008-04-15 22:11 ` Bryan Henderson
2008-04-16 9:40 ` Jamie Lokier
2008-04-08 8:05 Meelis Roos
2008-04-10 13:55 ` Michal Hocko
2008-04-10 14:01 ` Jiri Kosina
2008-04-10 14:27 ` Jan Kara
2008-04-10 14:31 ` Jiri Kosina
2008-04-10 14:48 ` Matthew Wilcox
2008-04-10 15:22 ` Jan Kara
2008-04-10 15:30 ` Matthew Wilcox
2008-04-10 15:19 ` Jan Kara
2008-04-10 15:37 ` Michal Hocko
2008-04-10 15:56 ` Jan Kara
2008-04-10 16:03 ` Diego Calleja
2008-04-10 16:15 ` Jan Kara
2008-04-11 19:26 ` Pavel Machek
2008-04-14 16:25 ` Jan Kara
2008-04-10 14:31 ` Michal Hocko
2008-04-10 14:35 ` Jiri Kosina
2008-04-10 14:11 ` Martin Mares
2008-04-10 15:12 ` Jan Kara
2008-04-10 15:14 ` Jamie Lokier
2008-04-10 15:21 ` Matthew Wilcox
2008-04-10 15:28 ` Jan Kara
2008-04-10 15:33 ` Andi Kleen
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