From: Borislav Petkov <bp@suse.de>
To: speck@linutronix.de
Subject: [MODERATED] Re: [patch V3 4/9] MDS basics 4
Date: Fri, 22 Feb 2019 08:50:43 +0100 [thread overview]
Message-ID: <20190222075043.GB30865@zn.tnic> (raw)
In-Reply-To: <20190221235534.731858403@linutronix.de>
On Fri, Feb 22, 2019 at 12:44:35AM +0100, speck for Thomas Gleixner wrote:
> +Exposure assumptions
> +--------------------
> +
> +It is assumed that attack code resides in user space or in a guest with one
> +exception. The rationale behind this assumption is that the code construct
> +needed for exploiting MDS requires:
> +
> + - to control the load to trigger a fault or assist
> +
> + - to have a disclosure gadget which exposes the speculatively accessed
> + data for consumption through a side channel.
> +
> + - to control the pointer through which the disclosure gadget exposes the
> + data
> +
> +The existance of such a construct cannot be excluded with 100% certainty,
WARNING: 'existance' may be misspelled - perhaps 'existence'?
With that fixed:
Reviewed-by: Borislav Petkov <bp@suse.de>
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
next prev parent reply other threads:[~2019-02-22 7:50 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 23:44 [patch V3 0/9] MDS basics 0 Thomas Gleixner
2019-02-21 23:44 ` [patch V3 1/9] MDS basics 1 Thomas Gleixner
2019-02-22 6:53 ` [MODERATED] " Greg KH
2019-02-22 7:30 ` Borislav Petkov
2019-02-21 23:44 ` [patch V3 2/9] MDS basics 2 Thomas Gleixner
2019-02-21 23:44 ` [patch V3 3/9] MDS basics 3 Thomas Gleixner
2019-02-21 23:44 ` [patch V3 4/9] MDS basics 4 Thomas Gleixner
2019-02-22 6:58 ` [MODERATED] " Greg KH
2019-02-22 10:44 ` Thomas Gleixner
2019-02-22 14:36 ` [MODERATED] " Greg KH
2019-02-22 22:38 ` Thomas Gleixner
2019-02-22 7:45 ` [MODERATED] Encrypted Message Jon Masters
2019-02-22 17:16 ` [MODERATED] " Linus Torvalds
2019-02-22 17:40 ` Thomas Gleixner
2019-02-22 7:50 ` Borislav Petkov [this message]
2019-02-21 23:44 ` [patch V3 5/9] MDS basics 5 Thomas Gleixner
2019-02-22 0:46 ` [MODERATED] " Andrew Cooper
2019-02-22 7:00 ` Thomas Gleixner
2019-02-22 9:20 ` [MODERATED] " Peter Zijlstra
2019-02-22 10:23 ` Thomas Gleixner
2019-02-21 23:44 ` [patch V3 6/9] MDS basics 6 Thomas Gleixner
2019-02-21 23:44 ` [patch V3 7/9] MDS basics 7 Thomas Gleixner
2019-02-22 7:08 ` [MODERATED] " Greg KH
2019-02-21 23:44 ` [patch V3 8/9] MDS basics 8 Thomas Gleixner
2019-02-22 7:14 ` [MODERATED] " Greg KH
2019-02-22 8:55 ` Borislav Petkov
2019-02-21 23:44 ` [patch V3 9/9] MDS basics 9 Thomas Gleixner
2019-02-22 7:50 ` [MODERATED] " Greg KH
2019-02-22 10:38 ` Thomas Gleixner
2019-02-22 14:44 ` [MODERATED] " Greg KH
2019-02-22 15:53 ` [MODERATED] " Borislav Petkov
2019-02-22 15:54 ` [MODERATED] " Borislav Petkov
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