All of lore.kernel.org
 help / color / mirror / Atom feed
From: "M. Vefa Bicakci" <m.v.b@runbox.com>
To: xen-devel@lists.xenproject.org
Cc: m.v.b@runbox.com, marmarek@invisiblethingslab.com,
	roger.pau@citrix.com, jbeulich@suse.com
Subject: [PATCH 0/1] Fix for a buggy XSA-321 resolution in Xen 4.9
Date: Mon, 15 Feb 2021 18:46:18 -0500	[thread overview]
Message-ID: <20210215234619.245422-1-m.v.b@runbox.com> (raw)

Hello all,

I found a bug in Xen 4.9 involving what I think is an incorrectly backported
patch for XSA-321. I realize that Xen 4.9 no longer receives security support,
but as a Qubes OS 4.0 user, I still rely on Xen 4.8, and this bug affects me
negatively.

I would really appreciate it if anyone could review the following patch in this
e-mail thread. I am mainly looking for a confirmation as to whether the patch
fixes the buggy backport in an acceptable manner. The description of the patch
is very (and possibly too) detailed and should have all of the necessary
background.

Thank you in advance,

Vefa

M. Vefa Bicakci (1):
  x86/ept: Fix buggy XSA-321 backport

 xen/arch/x86/mm/p2m-ept.c | 57 +++++++++++++++++++--------------------
 1 file changed, 28 insertions(+), 29 deletions(-)


base-commit: 4597fc97b3b8870c39214e3aa4132ab711a40691
-- 
2.29.2



             reply	other threads:[~2021-02-15 23:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 23:46 M. Vefa Bicakci [this message]
2021-02-15 23:46 ` [PATCH 1/1] x86/ept: Fix buggy XSA-321 backport M. Vefa Bicakci
2021-02-16  9:20   ` Roger Pau Monné
2021-02-16 12:48     ` M. Vefa Bicakci
2021-02-17  1:55       ` M. Vefa Bicakci

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210215234619.245422-1-m.v.b@runbox.com \
    --to=m.v.b@runbox.com \
    --cc=jbeulich@suse.com \
    --cc=marmarek@invisiblethingslab.com \
    --cc=roger.pau@citrix.com \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.