vhost: fix double-free with zero-copy

[ upstream commit a608436 ] zmbufs should be set to NULL when getting freed to avoid double free on the same buffer pointer Fixes: b0a985d ("vhost: add dequeue zero copy") Signed-off-by: Patrick Fu <patrick.fu@intel.com> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
kevintraynor · Aug 27, 2020 · 59b99c4 · 59b99c4
1 parent 8df3f28
commit 59b99c4
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
@@ -1395,6 +1395,7 @@ free_zmbufs(struct vhost_virtqueue *vq)
 	drain_zmbuf_list(vq);
 
 	rte_free(vq->zmbufs);
+	vq->zmbufs = NULL;
 }
 
 /*