diff options
Diffstat (limited to 'drivers/nvme/host/multipath.c')
| -rw-r--r-- | drivers/nvme/host/multipath.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 127a17b4c13d..98426234d416 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -818,6 +818,13 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA)) return 0; + if (!ctrl->max_namespaces || + ctrl->max_namespaces > le32_to_cpu(id->nn)) { + dev_err(ctrl->device, + "Invalid MNAN value %u\n", ctrl->max_namespaces); + return -EINVAL; + } + ctrl->anacap = id->anacap; ctrl->anatt = id->anatt; ctrl->nanagrpid = le32_to_cpu(id->nanagrpid); |