DPDK patches and discussions
 help / color / mirror / Atom feed
From: "Xiao, QimaiX" <qimaix.xiao@intel.com>
To: "Fu, Patrick" <patrick.fu@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>,
	"Xia, Chenbo" <chenbo.xia@intel.com>
Cc: "Wang, Yinan" <yinan.wang@intel.com>,
	"Fu, Patrick" <patrick.fu@intel.com>
Subject: Re: [dpdk-dev] [PATCH v1] vhost: set zmbufs to NULL when freed
Date: Thu, 16 Jul 2020 08:23:28 +0000
Message-ID: <MWHPR1101MB2254A43B5FFC1714BF323339FB7F0@MWHPR1101MB2254.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20200715155848.9501-1-patrick.fu@intel.com>

Tested-by: Xiao Qimai <qimaix.xiao@intel.com>

Regards,
Xiao Qimai

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of patrick.fu@intel.com
> Sent: Wednesday, July 15, 2020 11:59 PM
> To: dev@dpdk.org; maxime.coquelin@redhat.com; Xia, Chenbo
> <chenbo.xia@intel.com>
> Cc: Wang, Yinan <yinan.wang@intel.com>; Fu, Patrick <patrick.fu@intel.com>
> Subject: [dpdk-dev] [PATCH v1] vhost: set zmbufs to NULL when freed
> 
> From: Patrick Fu <patrick.fu@intel.com>
> 
> zmbufs should be set to NULL when getting freed to avoid double free on
> the same buffer pointer
> 
> Fixes: b0a985d1f340 ("vhost: add dequeue zero copy")
> 
> Signed-off-by: Patrick Fu <patrick.fu@intel.com>
> ---
>  lib/librte_vhost/vhost_user.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
> index df0db8a07..9ddeae362 100644
> --- a/lib/librte_vhost/vhost_user.c
> +++ b/lib/librte_vhost/vhost_user.c
> @@ -1934,6 +1934,7 @@ free_zmbufs(struct vhost_virtqueue *vq)
>  	drain_zmbuf_list(vq);
> 
>  	rte_free(vq->zmbufs);
> +	vq->zmbufs = NULL;
>  }
> 
>  /*
> --
> 2.17.1


  reply	other threads:[~2020-07-16  8:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-15 15:58 patrick.fu
2020-07-16  8:23 ` Xiao, QimaiX [this message]
2020-07-17  3:19 ` Xia, Chenbo
2020-07-17 12:35   ` Ferruh Yigit
2020-07-20 15:51 ` Maxime Coquelin
2020-07-20 16:49   ` Ferruh Yigit
2020-07-21  3:18   ` Fu, Patrick
2020-07-21 12:10 ` [dpdk-dev] [PATCH v2] vhost: fix double-free with zero-copy patrick.fu
2020-07-21  9:16   ` Maxime Coquelin
2020-07-21 14:58     ` Ferruh Yigit

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=MWHPR1101MB2254A43B5FFC1714BF323339FB7F0@MWHPR1101MB2254.namprd11.prod.outlook.com \
    --to=qimaix.xiao@intel.com \
    --cc=chenbo.xia@intel.com \
    --cc=dev@dpdk.org \
    --cc=maxime.coquelin@redhat.com \
    --cc=patrick.fu@intel.com \
    --cc=yinan.wang@intel.com \
    /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

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git