diff options
Diffstat (limited to 'hw/s390x/virtio-ccw.c')
| -rw-r--r-- | hw/s390x/virtio-ccw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c index ceb6a45703..d32ecafe98 100644 --- a/hw/s390x/virtio-ccw.c +++ b/hw/s390x/virtio-ccw.c @@ -549,6 +549,10 @@ static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) ret = -EFAULT; } else { vq_config.index = lduw_be_phys(&address_space_memory, ccw.cda); + if (vq_config.index >= VIRTIO_PCI_QUEUE_MAX) { + ret = -EINVAL; + break; + } vq_config.num_max = virtio_queue_get_num(vdev, vq_config.index); stw_be_phys(&address_space_memory, |