linux-kernel - Re: [PATCH 0/6] virtio-console: spec compliance fixes

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:   Thu, 3 May 2018 05:45:29 +0200
From:   Amit Shah <amit@...tshah.net>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     linux-kernel@...r.kernel.org, Amit Shah <amit@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        virtualization@...ts.linux-foundation.org, stable@...r.kernel.org,
        Tiwei Bie <tiwei.bie@...el.com>,
        Jason Wang <jasowang@...hat.com>
Subject: Re: [PATCH 0/6] virtio-console: spec compliance fixes

(apologies if you received a dup)

On (Tue) 24 Apr 2018 [21:41:29], Michael S. Tsirkin wrote:
> On Fri, Apr 20, 2018 at 09:17:59PM +0300, Michael S. Tsirkin wrote:
> > Turns out virtio console tries to take a buffer out of an active vq.
> > Works by sheer luck, and is explicitly forbidden by spec.  And while
> > going over it I saw that error handling is also broken -
> > failure is easy to trigger if I force allocations to fail.
> > 
> > Lightly tested.
> 
> Amit - any feedback before I push these patches?

The changes look good spec-wise.

There are a bunch of tests in avocado-vt that test virtio-console
functionality.  Can you give those a try before pushing?

		Amit
-- 
http://amitshah.net/