From: Peter Zijlstra <peterz@infradead.org>
To: Andreas Hartmann <andihartmann@freenet.de>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Spectre mitigation doesn't seem to work at all?!
Date: Mon, 4 Jun 2018 11:15:09 +0200 [thread overview]
Message-ID: <20180604091509.GP12217@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <d8fbee2d-305a-9fc0-356e-b8d4cbd59dbd@maya.org>
On Mon, Jun 04, 2018 at 10:50:07AM +0200, Andreas Hartmann wrote:
> Ok, this means every program running on the machine has to care itself
> to be spectre v1 - safe.
Correct. Compiler and static analyser teams are looking hard at this to
help.
> A malicious program most probably won't care about that. Therefore, my
> next question is: which memory regions can be exploited by a malicious
> program? The complete physical memory or only the memory provided to the
> malicious program? Should be the latter if this approach should have any
> impact.
It affects the virtual memory of the target process.
next prev parent reply other threads:[~2018-06-04 9:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-01 12:19 Andreas Hartmann
2018-06-04 7:43 ` Andreas Hartmann
2018-06-04 21:25 ` Thomas Gleixner
2018-06-04 8:15 ` Peter Zijlstra
2018-06-04 8:50 ` Andreas Hartmann
2018-06-04 9:15 ` Peter Zijlstra [this message]
2018-06-04 9:19 ` Mark Rutland
2018-06-04 10:00 ` Andreas Hartmann
2018-06-04 14:12 ` Alan Cox
2018-06-05 5:53 ` Andreas Hartmann
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