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-rw-r--r--hw/scsi/virtio-scsi.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 2dd92552e0..86aba8851d 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -699,6 +699,12 @@ void virtio_scsi_common_realize(DeviceState *dev, Error **errp,
virtio_init(vdev, "virtio-scsi", VIRTIO_ID_SCSI,
sizeof(VirtIOSCSIConfig));
+ if (s->conf.num_queues <= 0 || s->conf.num_queues > VIRTIO_PCI_QUEUE_MAX) {
+ error_setg(errp, "Invalid number of queues (= %" PRId32 "), "
+ "must be a positive integer less than %d.",
+ s->conf.num_queues, VIRTIO_PCI_QUEUE_MAX);
+ return;
+ }
s->cmd_vqs = g_malloc0(s->conf.num_queues * sizeof(VirtQueue *));
s->sense_size = VIRTIO_SCSI_SENSE_SIZE;
s->cdb_size = VIRTIO_SCSI_CDB_SIZE;