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Date:   Thu, 29 Jun 2023 20:07:48 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Matthieu Baerts <matthieu.baerts@tessares.net>
Cc:     pabeni@redhat.com, cpaasch@apple.com, kuba@kernel.org,
        stable@vger.kernel.org
Subject: Re: FAILED: patch "[PATCH] mptcp: fix possible divide by zero in
 recvmsg()" failed to apply to 5.10-stable tree
Message-ID: <2023062938-tidbit-sampling-3bde@gregkh>
References: <2023062349-nerd-rupture-49ab@gregkh>
 <062b7104-b536-2b09-acae-3f99d57368dd@tessares.net>
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On Thu, Jun 29, 2023 at 08:00:29PM +0200, Matthieu Baerts wrote:
> Hi Greg,
> 
> On 23/06/2023 11:30, gregkh@linuxfoundation.org wrote:
> > 
> > The patch below does not apply to the 5.10-stable tree.
> > If someone wants it applied there, or to any other stable or longterm
> > tree, then please email the backport, including the original git commit
> > id to <stable@vger.kernel.org>.
> > 
> > To reproduce the conflict and resubmit, you may use the following commands:
> > 
> > git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
> > git checkout FETCH_HEAD
> > git cherry-pick -x 0ad529d9fd2bfa3fc619552a8d2fb2f2ef0bce2e
> > # <resolve conflicts, build, test, etc.>
> > git commit -s
> > git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023062349-nerd-rupture-49ab@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
> 
> Thank you for the notification.
> 
> I think we can drop this patch for v5.10. The infrastructure in the code
> is not there (mptcp_disconnect()) and the risk is very low: we only saw
> the issue recently, maybe only visible in newer versions due to other
> features.
> 
> So no need to do anything here for v5.10.

Great, thanks for letting us know.

greg k-h