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From: "Juergen Groß" <jgross@suse.com>
To: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>,
	xen-devel@lists.xenproject.org
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH v2] x86/xen: allow userspace access during hypercalls
Date: Mon, 26 Jun 2017 14:54:07 +0200	[thread overview]
Message-ID: <664ecd67-8bd5-3efd-4b59-eef79640ef4c@suse.com> (raw)
In-Reply-To: <1498481386-8704-1-git-send-email-marmarek@invisiblethingslab.com>

On 06/26/2017 02:49 PM, Marek Marczykowski-Górecki wrote:
> Userspace application can do a hypercall through /dev/xen/privcmd, and
> some for some hypercalls argument is a pointers to user-provided
> structure. When SMAP is supported and enabled, hypervisor can't access.
> So, lets allow it.
> 
> The same applies to HYPERVISOR_dm_op, where additionally privcmd driver
> carefully verify buffer addresses.
> 
> Cc: stable@vger.kernel.org
> Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Thanks,

Juergen

  reply	other threads:[~2017-06-26 12:54 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-23 12:47 [PATCH] x86/xen: allow userspace access during hypercalls Marek Marczykowski-Górecki
2017-06-26 12:05 ` Juergen Groß
2017-06-26 12:45   ` Marek Marczykowski-Górecki
2017-06-26 12:49     ` [PATCH v2] " Marek Marczykowski-Górecki
2017-06-26 12:49     ` Marek Marczykowski-Górecki
2017-06-26 12:54       ` Juergen Groß [this message]
2017-06-26 12:54       ` Juergen Groß
2017-07-03 11:28       ` Juergen Gross
2017-07-03 11:28       ` Juergen Gross
2017-06-26 13:09     ` [PATCH] " Paul Durrant
2017-06-26 13:09     ` [Xen-devel] " Paul Durrant
2017-06-26 13:21       ` 'Marek Marczykowski-Górecki'
2017-06-26 13:24         ` Paul Durrant
2017-06-26 13:24         ` Paul Durrant
2017-06-26 13:21       ` 'Marek Marczykowski-Górecki'
2017-06-26 12:45   ` Marek Marczykowski-Górecki
2017-06-26 12:05 ` Juergen Groß

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