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* [dpdk-dev] [PATCH] examples/vhost: fix memory leak on forwarding packets.
@ 2021-08-17 17:13 Wenwu Ma
  2021-08-17  5:26 ` Jiang, Cheng1
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Wenwu Ma @ 2021-08-17 17:13 UTC (permalink / raw)
  To: dev; +Cc: maxime.coquelin, chenbo.xia, cheng1.jiang, jiayu.hu, Wenwu Ma, stable

In function virtio_tx_local(), when the device receiving the packet
is the 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

Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
---
 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 == 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


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-09-02  6:51 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-17 17:13 [dpdk-dev] [PATCH] examples/vhost: fix memory leak on forwarding packets Wenwu Ma
2021-08-17  5:26 ` Jiang, Cheng1
2021-08-17  7:12   ` Hu, Jiayu
2021-08-26 11:47 ` Xia, Chenbo
2021-08-27 14:00 ` [dpdk-dev] [PATCH v2] " Wenwu Ma
2021-08-31  5:50   ` Xia, Chenbo
2021-09-02  6:50   ` Yang, YvonneX

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