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-rw-r--r--drivers/vhost/vhost.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 549771a0cd8b..5727b186b3ca 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1015,6 +1015,10 @@ static int vhost_process_iotlb_msg(struct vhost_dev *dev,
vhost_iotlb_notify_vq(dev, msg);
break;
case VHOST_IOTLB_INVALIDATE:
+ if (!dev->iotlb) {
+ ret = -EFAULT;
+ break;
+ }
vhost_vq_meta_reset(dev);
vhost_del_umem_range(dev->iotlb, msg->iova,
msg->iova + msg->size - 1);