From: Tomas Szepe <szepe@pinerecords.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org
Subject: Re: mremap() bug IMHO not in 2.2
Date: Tue, 6 Jan 2004 03:14:21 +0100 [thread overview]
Message-ID: <20040106021421.GI4987@louise.pinerecords.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0401051604550.5970@home.osdl.org>
On Jan-05 2004, Mon, 16:08 -0800
Linus Torvalds <torvalds@osdl.org> wrote:
> The only page that should matter is likely the one at 0xC0000000, where
> there can be extra complications from the fact that we use 4MB pages for
> the kernel, so when fork/exit tries to walk the page table, it would get
> bogus results.
>
> Still, I'd expect that to lead to a triple fault (and thus a reboot)
> rather than any elevation of privileges..
Hmmm... so what about non-x86?
> Interesting, in any case. Good catch from whoever found it.
Impressive, yes.
--
Tomas Szepe <szepe@pinerecords.com>
next prev parent reply other threads:[~2004-01-06 2:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-05 14:54 mremap bug and 2.4? Robert L. Harris
2004-01-05 15:21 ` Erik Mouw
2004-01-05 15:26 ` Marcelo Tosatti
2004-01-05 15:42 ` Robert L. Harris
2004-01-05 17:10 ` Diego Calleja
2004-01-05 18:23 ` Tomas Szepe
2004-01-05 18:26 ` mremap() bug and 2.2? Petr Baudis
2004-01-05 22:55 ` mremap() bug IMHO not in 2.2 Petr Baudis
2004-01-05 23:36 ` Linus Torvalds
2004-01-05 23:58 ` Valdis.Kletnieks
2004-01-06 0:08 ` Linus Torvalds
2004-01-06 2:14 ` Tomas Szepe [this message]
2004-01-06 9:22 ` Martin Loschwitz
2004-01-06 20:36 ` mremap() bug indeed not in 2.2 (confirmed) Petr Baudis
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