diff options
| author | Hannes Reinecke <hare@suse.de> | 2019-05-03 16:37:35 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-05-13 17:00:03 +0300 |
| commit | 8a03b27ea61c2ab9de16a8a195822ef05e799748 (patch) | |
| tree | 6dab8869fed56c2b1422e12f47af9e33ca52dbec /drivers/nvme | |
| parent | 8730c1ddb69bdeeb10c1f613a4e15e95862b1981 (diff) | |
| download | linux-8a03b27ea61c2ab9de16a8a195822ef05e799748.tar.xz | |
nvme-multipath: avoid crash on invalid subsystem cntlid enumeration
A process holding an open reference to a removed disk prevents it
from completing deletion, so its name continues to exist. A subsequent
gendisk creation may have the same cntlid which risks collision when
using that for the name. Use the unique ctrl->instance instead.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/multipath.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 5c9429d41120..499acf07d61a 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -31,7 +31,7 @@ void nvme_set_disk_name(char *disk_name, struct nvme_ns *ns, sprintf(disk_name, "nvme%dn%d", ctrl->instance, ns->head->instance); } else if (ns->head->disk) { sprintf(disk_name, "nvme%dc%dn%d", ctrl->subsys->instance, - ctrl->cntlid, ns->head->instance); + ctrl->instance, ns->head->instance); *flags = GENHD_FL_HIDDEN; } else { sprintf(disk_name, "nvme%dn%d", ctrl->subsys->instance, |