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vhost: fix virtqueue initialization

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This patches fixes virtqueue initialization issue causing
segfault or file descriptor being closed unexpectedly.

The wrong index was passed to init_vring_queue() by
alloc_vring_queue() when a hole in the virtqueue array was
met.

Fixes: 8acd7c2133 ("vhost: fix virtqueues metadata allocation")
Cc: stable@dpdk.org

Reported-by: Yu Jiang <yux.jiang@intel.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Tested-by: Yu Jiang <yux.jiang@intel.com>
This commit is contained in:
Maxime Coquelin 2020-11-06 15:47:44 +01:00 committed by Ferruh Yigit
parent 45ba914134
commit 7804bbd13a
1 changed files with 1 additions and 1 deletions
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2
lib/librte_vhost/vhost.c
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@ -605,7 +605,7 @@ alloc_vring_queue(struct virtio_net *dev, uint32_t vring_idx)
}
dev->virtqueue[i] = vq;
init_vring_queue(dev, vring_idx);
init_vring_queue(dev, i);
rte_spinlock_init(&vq->access_lock);
vq->avail_wrap_counter = 1;
vq->used_wrap_counter = 1;