From: Sam Ravnborg <sam@ravnborg.org>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: slab.c use of __get_user and sparse
Date: Sat, 15 Jan 2005 23:25:43 +0100 [thread overview]
Message-ID: <20050115222543.GB8989@mars.ravnborg.org> (raw)
In-Reply-To: <20050115220151.GA16442@wotan.suse.de>
On Sat, Jan 15, 2005 at 11:01:51PM +0100, Andi Kleen wrote:
> > Based on the comment it is understood that suddenly this pointer points
> > to userspace, because the module got unloaded.
> > I wonder why we can rely on the same address now the module got unloaded -
> > we may risk this virtual address is taken over by someone else?
>
> The address is not user space; you would be lying.
Which is very bad - dropped slab.c for now.
Sam
prev parent reply other threads:[~2005-01-15 22:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-15 21:39 Sam Ravnborg
2005-01-15 22:01 ` Andi Kleen
2005-01-15 9:22 ` Andreas Gruenbacher
2005-01-16 21:22 ` Andreas Dilger
2005-01-15 22:24 ` Al Viro
2005-01-15 22:25 ` Sam Ravnborg [this message]
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