patches for DPDK stable branches
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From: "Xia, Chenbo" <chenbo.xia@intel.com>
To: "Liu, Yong" <yong.liu@intel.com>,
	"maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [PATCH 1/3] vhost: fix split ring potential buffer overflow
Date: Wed, 31 Mar 2021 07:48:25 +0000
Message-ID: <MN2PR11MB4063F361C99F56D214EE27F79C7C9@MN2PR11MB4063.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20210331064939.56107-1-yong.liu@intel.com>

> -----Original Message-----
> From: Liu, Yong <yong.liu@intel.com>
> Sent: Wednesday, March 31, 2021 2:50 PM
> To: maxime.coquelin@redhat.com; Xia, Chenbo <chenbo.xia@intel.com>
> Cc: dev@dpdk.org; Liu, Yong <yong.liu@intel.com>; stable@dpdk.org
> Subject: [PATCH 1/3] vhost: fix split ring potential buffer overflow
> 
> In vhost datapath, descriptor's length are mostly used in two coherent
> operations. First step is used for address translation, second step is
> used for memory transaction from guest to host. But the iterval between
> two steps will give a window for malicious guest, in which can change
> descriptor length after vhost calcuated buffer size. Thus may lead to
> buffer overflow in vhost side. This potential risk can be eliminated by
> accessing the descriptor length once.
> 
> Fixes: 1be4ebb1c464 ("vhost: support indirect descriptor in mergeable Rx")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Marvin Liu <yong.liu@intel.com>
> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> --
> 2.17.1

Series applied to next-virtio/main, Thanks!

  parent reply	other threads:[~2021-03-31  7:49 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-31  6:49 Marvin Liu
2021-03-31  6:49 ` [dpdk-stable] [PATCH 2/3] vhost: fix packed " Marvin Liu
2021-03-31  6:49 ` [dpdk-stable] [PATCH 3/3] vhost: fix potential buffer overflow when batch dequeue Marvin Liu
2021-03-31  7:48 ` Xia, Chenbo [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-02-26  7:33 [dpdk-stable] [PATCH] vhost: fix potential buffer overflow Marvin Liu
2021-03-25  3:01 ` [dpdk-stable] [PATCH 1/3] vhost: fix split ring " Marvin Liu

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