From: Andi Kleen <ak@suse.de>
To: Pavel Machek <pavel@suse.cz>
Cc: Andi Kleen <ak@suse.de>, Kevin Lawton <kevinlawton2001@yahoo.com>,
linux-kernel@vger.kernel.org
Subject: Re: Possible bug in arch/i386/kernel/process.c for reloading of debug registers (DRx)?
Date: Sat, 8 Feb 2003 18:22:04 +0100 [thread overview]
Message-ID: <20030208172204.GA24577@wotan.suse.de> (raw)
In-Reply-To: <20030207163301.GH345@elf.ucw.cz>
> What if DRx contains sensitive data? ...Its probably pretty
> unlikely. Still it allows for example easy communication between tasks
> that should not be able to communicate.
The user never sees the stale value, it is eaten by the kernel's do_debug
handler.
-Andi
next prev parent reply other threads:[~2003-02-08 17:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030203235140.10443.qmail@web80304.mail.yahoo.com.suse.lists.linux.kernel>
2003-02-04 0:39 ` Andi Kleen
2003-02-07 16:33 ` Pavel Machek
2003-02-08 17:22 ` Andi Kleen [this message]
2003-02-08 19:31 ` Jamie Lokier
2003-02-09 0:56 ` Andi Kleen
2003-02-09 6:15 ` [PATCH] Optimisation and CONFIG_PREEMPT fix of reloading of debug registers Jamie Lokier
2003-02-03 23:51 Possible bug in arch/i386/kernel/process.c for reloading of debug registers (DRx)? Kevin Lawton
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