lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 14 Apr 2021 09:17:38 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Tianyu Lan <ltykernel@...il.com>, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com, wei.liu@...nel.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, x86@...nel.org,
        hpa@...or.com, arnd@...db.de, akpm@...ux-foundation.org,
        konrad.wilk@...cle.com, hch@....de, m.szyprowski@...sung.com,
        robin.murphy@....com, joro@...tes.org, will@...nel.org,
        davem@...emloft.net, kuba@...nel.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, Tianyu Lan <Tianyu.Lan@...rosoft.com>,
        iommu@...ts.linux-foundation.org, linux-arch@...r.kernel.org,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-scsi@...r.kernel.org,
        netdev@...r.kernel.org, vkuznets@...hat.com,
        thomas.lendacky@....com, brijesh.singh@....com,
        sunilmut@...rosoft.com
Subject: Re: [Resend RFC PATCH V2 08/12] UIO/Hyper-V: Not load UIO HV driver
 in the isolation VM.

On Wed, 14 Apr 2021 17:45:51 +0200
Greg KH <gregkh@...uxfoundation.org> wrote:

> On Wed, Apr 14, 2021 at 10:49:41AM -0400, Tianyu Lan wrote:
> > From: Tianyu Lan <Tianyu.Lan@...rosoft.com>
> > 
> > UIO HV driver should not load in the isolation VM for security reason.
> > Return ENOTSUPP in the hv_uio_probe() in the isolation VM.
> > 
> > Signed-off-by: Tianyu Lan <Tianyu.Lan@...rosoft.com>

This is debatable, in isolation VM's shouldn't userspace take responsibility
to validate host communication. If that is an issue please participate with
the DPDK community (main user of this) to make sure netvsc userspace driver
has the required checks.

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ