qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: "Cédric Le Goater" <clg@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Stefan Hajnoczi" <stefanha@redhat.com>,
	"Denis V . Lunev" <den@openvz.org>,
	"Kevin Wolf" <kwolf@redhat.com>,
	"Hanna Reitz" <hreitz@redhat.com>, "Stefan Weil" <sw@weilnetz.de>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Daniel P . Berrangé" <berrange@redhat.com>,
	"Eduardo Habkost" <eduardo@habkost.net>,
	"Maciej S . Szmigiero" <maciej.szmigiero@oracle.com>,
	"Fam Zheng" <fam@euphon.net>,
	"Juan Quintela" <quintela@redhat.com>,
	"Peter Xu" <peterx@redhat.com>, "Fabiano Rosas" <farosas@suse.de>,
	"Leonardo Bras" <leobras@redhat.com>,
	"Cédric Le Goater" <clg@redhat.com>
Subject: [PATCH 0/2] vfio/pci: Fix buffer overrun when writing the VF token
Date: Wed, 25 Oct 2023 12:12:43 +0200	[thread overview]
Message-ID: <20231025101245.751559-1-clg@redhat.com> (raw)

Hello,

This series fixes a buffer overrun in VFIO. The buffer used in
vfio_realize() by qemu_uuid_unparse() is too small, UUID_FMT_LEN lacks
one byte for the trailing NUL.

Instead of adding + 1, as done elsewhere, the changes introduce a
UUID_STR_LEN define for the correct size and use it where required.

Thanks,

C. 

Cédric Le Goater (2):
  util/uuid: Add UUID_STR_LEN definition
  vfio/pci: Fix buffer overrun when writing the VF token

 include/qemu/uuid.h              | 1 +
 block/parallels-ext.c            | 2 +-
 block/vdi.c                      | 2 +-
 hw/core/qdev-properties-system.c | 2 +-
 hw/hyperv/vmbus.c                | 4 ++--
 hw/vfio/pci.c                    | 2 +-
 migration/savevm.c               | 4 ++--
 tests/unit/test-uuid.c           | 2 +-
 util/uuid.c                      | 2 +-
 9 files changed, 11 insertions(+), 10 deletions(-)

-- 
2.41.0



             reply	other threads:[~2023-10-25 10:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-25 10:12 Cédric Le Goater [this message]
2023-10-25 10:12 ` [PATCH 1/2] util/uuid: Add UUID_STR_LEN definition Cédric Le Goater
2023-10-25 10:27   ` Juan Quintela
2023-10-25 12:13   ` Philippe Mathieu-Daudé
2023-10-25 10:12 ` [PATCH 2/2] vfio/pci: Fix buffer overrun when writing the VF token Cédric Le Goater
2023-10-25 10:28   ` Juan Quintela
2023-10-25 19:55   ` Alex Williamson

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=20231025101245.751559-1-clg@redhat.com \
    --to=clg@redhat.com \
    --cc=berrange@redhat.com \
    --cc=den@openvz.org \
    --cc=eduardo@habkost.net \
    --cc=fam@euphon.net \
    --cc=farosas@suse.de \
    --cc=hreitz@redhat.com \
    --cc=kwolf@redhat.com \
    --cc=leobras@redhat.com \
    --cc=maciej.szmigiero@oracle.com \
    --cc=pbonzini@redhat.com \
    --cc=peterx@redhat.com \
    --cc=qemu-devel@nongnu.org \
    --cc=quintela@redhat.com \
    --cc=stefanha@redhat.com \
    --cc=sw@weilnetz.de \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).