From: David Marchand <david.marchand@redhat.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev@dpdk.org, chenbo.xia@intel.com, stable@dpdk.org
Subject: Re: [PATCH v2 1/2] vhost: fix possible FDs leak
Date: Sun, 29 Jan 2023 10:25:46 +0100 [thread overview]
Message-ID: <CAJFAV8zeLWxpnE7dYokjkYkGa-v84aLP8X__ckJKs=UrKEVhwA@mail.gmail.com> (raw)
In-Reply-To: <20230127165540.37863-2-maxime.coquelin@redhat.com>
On Fri, Jan 27, 2023 at 5:55 PM Maxime Coquelin
<maxime.coquelin@redhat.com> wrote:
>
> On failure, read_vhost_message() only closed the message
> FDs if the header size was unexpected, but there are other
> cases where it is required. For exemple in the case the
> payload size read from the header is greater than the
> expected maximum payload size.
>
> This patch fixes this by closing all messages FDs in all
> error cases.
>
> Fixes: bf472259dde6 ("vhost: fix possible denial of service by leaking FDs")
> Cc: stable@dpdk.org
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
We mentionned offlist that the request type can be logged to help with debug.
Do you intend to add this as a follow up patch?
--
David Marchand
next prev parent reply other threads:[~2023-01-29 9:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-27 16:55 [PATCH v2 0/2] Vhost: fix FD leaks and improve logs Maxime Coquelin
2023-01-27 16:55 ` [PATCH v2 1/2] vhost: fix possible FDs leak Maxime Coquelin
2023-01-29 9:25 ` David Marchand [this message]
2023-01-30 9:46 ` Maxime Coquelin
2023-01-30 14:25 ` David Marchand
2023-02-07 16:18 ` Maxime Coquelin
2023-02-07 5:38 ` Xia, Chenbo
2023-01-27 16:55 ` [PATCH v2 2/2] vhost: fix possible FD leaks on MSG_TRUNC and MSG_CTRUNC Maxime Coquelin
2023-01-29 9:26 ` David Marchand
2023-01-27 16:55 ` [PATCH v2 2/2] vhost: fix possible FD leaks on truncation Maxime Coquelin
2023-02-07 5:38 ` Xia, Chenbo
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