From: patrick.fu@intel.com
To: dev@dpdk.org, maxime.coquelin@redhat.com, chenbo.xia@intel.com
Cc: yinan.wang@intel.com, Patrick Fu <patrick.fu@intel.com>
Subject: [dpdk-dev] [PATCH v1] vhost: set zmbufs to NULL when freed
Date: Wed, 15 Jul 2020 15:58:48 +0000 [thread overview]
Message-ID: <20200715155848.9501-1-patrick.fu@intel.com> (raw)
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
next reply other threads:[~2020-07-15 7:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-15 15:58 patrick.fu [this message]
2020-07-16 8:23 ` Xiao, QimaiX
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
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