All of lore.kernel.org
 help / color / mirror / Atom feed
From: Greg KH <gregkh@linuxfoundation.org>
To: Kyle Zeng <zengyhkyle@gmail.com>
Cc: stable@vger.kernel.org
Subject: Re: wild pointer access in rsvp classifer in the Linux kernel <= v6.2
Date: Fri, 8 Sep 2023 07:17:12 +0100	[thread overview]
Message-ID: <2023090826-rabid-cabdriver-37d8@gregkh> (raw)
In-Reply-To: <CADW8OBtkAf+nGokhD9zCFcmiebL1SM8bJp_oo=pE02BknG9qnQ@mail.gmail.com>

On Thu, Sep 07, 2023 at 05:01:23PM -0700, Kyle Zeng wrote:
> Hi Greg,
> 
> I recently found a bug in the rsvp traffic classifier in the Linux kernel.
> This classifier is already retired in the upstream but affects stable
> releases.
> 
> The symptom of the bug is that the kernel can be tricked into accessing a
> wild pointer, thus crash the kernel.
> 
> Since it is just a crash and cannot be used for LPE, I do not want to
> trouble security@kernel.org. And since the classifier is already
> retired in the upstream, I cannot report there.

Great, can you use 'git bisect' to track down the commit that fiexes
this so we can add it to the stable trees?

thanks,

greg k-h

  reply	other threads:[~2023-09-08  6:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-08  0:01 wild pointer access in rsvp classifer in the Linux kernel <= v6.2 Kyle Zeng
2023-09-08  6:17 ` Greg KH [this message]
2023-09-12  2:51   ` Kyle Zeng
2023-09-13  8:12     ` Greg KH
2023-09-14  0:04       ` Kyle Zeng
2023-09-16 11:41         ` Greg KH
2023-09-20  2:27           ` Kyle Zeng
2023-09-20 11:10             ` Greg KH

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=2023090826-rabid-cabdriver-37d8@gregkh \
    --to=gregkh@linuxfoundation.org \
    --cc=stable@vger.kernel.org \
    --cc=zengyhkyle@gmail.com \
    /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.