From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0177D2750ED; Tue, 16 Jun 2026 04:48:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781585317; cv=none; b=nreUF1Psf/muToJaiD7Amb6XeNxpYGFsVHaMD3leGGt5c8cFPM9b8rniurun4FWANjLThX7Vrglc7Vx91S4kRYo4WCbRpezgAeyn21x5LfuxjkYSyV9Gr3IzfjhA2RkQAvFjII01fsqU13wA5gsj3OtjRSkM4M7+kr9l8kbEQFo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781585317; c=relaxed/simple; bh=+GAzhuOVqYflmhuwdTsSL+/EE2isHEZUlqKl3kdaaSg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ctSgDYwlFBZeNFa5CvihMp4cEtYwiS9qulso6v3C1D1HYBL02zAn3eVMR1/DXPUPphGjCJ9pxvwK4+T1qWwQSLgzw6gwZwhApu/5l+vYY/2+YMjO+06JKvY69OC2KxQXTpI18bZbUnXjjJTjdzuc3DS5RGf2LN/uwbz7ggSzcq0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=e8XJB3qN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="e8XJB3qN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E8671F000E9; Tue, 16 Jun 2026 04:48:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781585315; bh=59eSE6Ypmdqidr8SEUba7qcDtoyeflow3dPcMaCCM1o=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=e8XJB3qNY3Iia94LYouqyZznnC3rhYx8DuLLujNzA8u7k4pc7aXmt0u9DmxcJFZ4e +LnAFumMEsx4qzMgPHrn3TDLyxxvfW5JQFrBLww206+nSOjAG4ZsNotZKywj4t0u/r y0lfXc/2AVxNGdi01bFU6opnQOYlYzB2rJ5O3eDw= Date: Tue, 16 Jun 2026 10:17:31 +0530 From: Greg KH To: Stefano Garzarella Cc: Sasha Levin , "Michael S. Tsirkin" , AVKrasnov@sberdevices.ru, edumazet@google.com, eperezma@redhat.com, jasowang@redhat.com, kuba@kernel.org, leonardi@redhat.com, stefanha@redhat.com, virtualization@lists.linux.dev, xuanzhuo@linux.alibaba.com, stable-commits@vger.kernel.org, stable@vger.kernel.org Subject: Re: Patch "vsock/virtio: fix potential unbounded skb queue" has been added to the 6.6-stable tree Message-ID: <2026061624-harbor-capture-a5bf@gregkh> References: <2026051553-santa-unretired-a417@gregkh> <20260515113503-mutt-send-email-mst@kernel.org> <2026051526-banish-strife-6dba@gregkh> <20260515114521-mutt-send-email-mst@kernel.org> <20260516170159.vsock-virtio-unbounded-drop@kernel.org> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, May 21, 2026 at 03:15:54PM +0200, Stefano Garzarella wrote: > On Sun, May 17, 2026 at 09:33:06AM -0400, Sasha Levin wrote: > > > > What's the status of that fix? > > > > > > Stefano posted v3 and is working on v4. > > > > > > > Should it be reverted elsewhere? > > > > > > Donnu. With the change we have no DoS but the socket gets silently > > > broken. Eric felt given the brokenness is upstream already it's better > > > to work on a fix on top, not revert. > > > > Dropped from the 6.6, 6.12, 6.18, and 7.0 queues. We'll pick up Stefano's > > follow-up once it lands upstream. > > FYI v4 is now merged in the net tree, so I guess they will land upstream > soon. I CCed stable on both patches: > > a4f0b001782b ("vsock/virtio: reset connection on receiving queue overflow") > c6087c5aaad6 ("vsock/virtio: fix skb overhead accounting to preserve full > buf_alloc") > > Both are related, but the second is the main fix of this patch. THe second one doesn't apply at all :(