From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Johan Hovold <johan@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] USB: serial: fix port tear down use-after-free
Date: Thu, 20 Aug 2026 17:08:27 +0200 [thread overview]
Message-ID: <2026082018-fringe-stump-711e@gregkh> (raw)
In-Reply-To: <20260820145402.434447-1-johan@kernel.org>
On Thu, Aug 20, 2026 at 04:54:00PM +0200, Johan Hovold wrote:
> When addressing a port probe ordering issue in digi_acceleport recently
> I realised that we have a corresponding general problem during
> disconnect, but I didn't have time to address it straight away.
>
> Now syzbot has managed to trigger one of its symptoms and people have
> already started submitting incomplete band-aids so here is a proper
> fix.
>
> When testing the fix I also noticed that we have an ordering issue when
> deregistering drivers that can result in similar use-after-free.
Nice catch:
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
prev parent reply other threads:[~2026-08-20 15:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-20 14:54 [PATCH 0/2] USB: serial: fix port tear down use-after-free Johan Hovold
2026-08-20 14:54 ` [PATCH 1/2] " Johan Hovold
2026-08-20 14:54 ` [PATCH 2/2] USB: serial: fix driver deregistration order Johan Hovold
2026-08-20 15:47 ` Alan Stern
2026-08-20 15:08 ` Greg Kroah-Hartman [this message]
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=2026082018-fringe-stump-711e@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=johan@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
/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