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Thu, 2 Sep 2021 06:50:45 +0000 From: "Yang, YvonneX" To: "Ma, WenwuX" , "dev@dpdk.org" CC: "maxime.coquelin@redhat.com" , "Xia, Chenbo" , "Jiang, Cheng1" , "Hu, Jiayu" , "Ma, WenwuX" , "stable@dpdk.org" Thread-Topic: [dpdk-dev] [PATCH v2] examples/vhost: fix memory leak on forwarding packets Thread-Index: AQHXmuhpvptaC2rjqk2Ai01/UYTa6auQV8lg Date: Thu, 2 Sep 2021 06:50:44 +0000 Message-ID: References: <20210817171320.647414-1-wenwux.ma@intel.com> <20210827140037.3822-1-wenwux.ma@intel.com> In-Reply-To: <20210827140037.3822-1-wenwux.ma@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=intel.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 24aaf88f-20f2-483c-706e-08d96dddfd5a x-ms-traffictypediagnostic: DM5PR11MB2042: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8273; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH v2] examples/vhost: fix memory leak on forwarding packets X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" > -----Original Message----- > From: dev On Behalf Of Wenwu Ma > Sent: Friday, August 27, 2021 10:01 PM > To: dev@dpdk.org > Cc: maxime.coquelin@redhat.com; Xia, Chenbo ; > Jiang, Cheng1 ; Hu, Jiayu ; > Ma, WenwuX ; stable@dpdk.org > Subject: [dpdk-dev] [PATCH v2] examples/vhost: fix memory leak on > forwarding packets > > In function virtio_tx_local(), when the device receiving the packet is th= e > same as the device to which the packet is forwarded, or the device is > removed, we return but not free the packet, it will cause a memory leak. > > Fixes: 4796ad63ba1f ("examples/vhost: import userspace vhost application"= ) > Cc: stable@dpdk.org > > v2: > - Delete '.' in the title. > > Signed-off-by: Wenwu Ma > --- > examples/vhost/main.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/examples/vhost/main.c b/examples/vhost/main.c index > bc3d71c898..07fd90ec64 100644 > --- a/examples/vhost/main.c > +++ b/examples/vhost/main.c > @@ -965,6 +965,7 @@ virtio_tx_local(struct vhost_dev *vdev, struct > rte_mbuf *m) > return -1; > > if (vdev->vid =3D=3D dst_vdev->vid) { > + rte_pktmbuf_free(m); > RTE_LOG_DP(DEBUG, VHOST_DATA, > "(%d) TX: src and dst MAC is same. Dropping > packet.\n", > vdev->vid); > @@ -975,6 +976,7 @@ virtio_tx_local(struct vhost_dev *vdev, struct > rte_mbuf *m) > "(%d) TX: MAC address is local\n", dst_vdev->vid); > > if (unlikely(dst_vdev->remove)) { > + rte_pktmbuf_free(m); > RTE_LOG_DP(DEBUG, VHOST_DATA, > "(%d) device is marked for removal\n", dst_vdev- > >vid); > return 0; > -- > 2.25.1 Tested-by: Yvonne Yang