public inbox for [email protected]
 help / color / mirror / Atom feed
From: Jens Axboe <[email protected]>
To: Homin Rhee <[email protected]>, [email protected]
Subject: Re: [Report] Use-After-Free in io_wq_worker_running
Date: Sun, 15 Jan 2023 08:36:55 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAA2QpBfokQQ=eX=Ek4f4-cft25cRkqALZZB6B=VYYmfUKk5Mzg@mail.gmail.com>

On 1/15/23 6:19 AM, Homin Rhee wrote:
> Hello,
> I'm iCAROS7 and my syzkaller hit follow KASAN bug via UAF.
> 
> Target kernel commit: 0bf913e07b37
> Target arch: amd64
> Host syzkaller version: 96166539c4c242fccd41c7316b7080377dca428b
> Host CPU: Intel i7 12700K
> Host OS: Kubuntu 22.04.1 LTS (5.18.19-051819-generic)

This is a duplicate, see the mailing list. But in any case, it's
fixed as of:

commit e6db6f9398dadcbc06318a133d4c44a2d3844e61
Author: Jens Axboe <[email protected]>
Date:   Sun Jan 8 10:39:17 2023 -0700

    io_uring/io-wq: only free worker if it was allocated for creation

caused by a buggy commit that went into 6.2-rc3.

-- 
Jens Axboe



           reply	other threads:[~2023-01-15 15:37 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <CAA2QpBfokQQ=eX=Ek4f4-cft25cRkqALZZB6B=VYYmfUKk5Mzg@mail.gmail.com>]

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 \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /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