qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: P J P <ppandit@redhat.com>
To: Qemu devel <qemu-devel@nongnu.org>
Cc: Stefan Weil <sw@weilnetz.de>,
	Prasad J Pandit <pjp@fedoraproject.org>,
	Peter Maydell <peter.maydell@linaro.org>
Subject: [Qemu-devel] [PATCH for v2.3.0] fw_cfg: add check to validate current entry value
Date: Tue,  5 Jan 2016 20:25:22 +0530	[thread overview]
Message-ID: <1452005723-1494-1-git-send-email-ppandit@redhat.com> (raw)

From: Prasad J Pandit <pjp@fedoraproject.org>

Hello,

An OOB r/w access issue was reported by Mr Donghai Zdh, CC'd here. It occurs
while processing firmware configurations in Qemu versions prior to 2.4. The
OOB memory access crashes the Qemu process on the host.

Please see below a (tested)patch to fix this issue. Does it look okay?

Thank you!

Prasad J Pandit (1):
  fw_cfg: add check to validate current entry value

 hw/nvram/fw_cfg.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--
2.4.3

             reply	other threads:[~2016-01-05 14:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-05 14:55 P J P [this message]
2016-01-05 14:55 ` [Qemu-devel] [PATCH for v2.3.0] fw_cfg: add check to validate current entry value P J P
2016-01-05 20:22   ` Stefan Weil
2016-01-06  6:21     ` P J P
2016-01-05 18:08 ` P J P
2016-01-06  1:43 ` 朱东海(启路)
2016-01-06  8:16   ` P J P

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=1452005723-1494-1-git-send-email-ppandit@redhat.com \
    --to=ppandit@redhat.com \
    --cc=peter.maydell@linaro.org \
    --cc=pjp@fedoraproject.org \
    --cc=qemu-devel@nongnu.org \
    --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).