Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: release admin tagset if init fails nvme_fabrics creates an NVMe/FC controller in following path: nvmf_dev_write() -> nvmf_create_ctrl() -> nvme_fc_create_ctrl() -> nvme_fc_init_ctrl() nvme_fc_init_ctrl() allocates the admin blk-mq resources right after nvme_add_ctrl() succeeds. If any of the subsequent steps fail (changing the controller state, scheduling connect work, etc.), we jump to the fail_ctrl path, which tears down the controller references but never frees the admin queue/tag set. The leaked blk-mq allocations match the kmemleak report seen during blktests nvme/fc. Check ctrl->ctrl.admin_tagset in the fail_ctrl path and call nvme_remove_admin_tag_set() when it is set so that all admin queue allocations are reclaimed whenever controller setup aborts.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5fe335a80548e2eda5d51fab801108b323600e95 before 7c54d3f5ebbc5982daaa004260242dc07ac943ea; affected 17c3a66d7ea2d303f783796d62f99e2e23b68c90 before fa301aef50e3f3b5be6ee53457608beae5aa7a01; affected ea3442efabd0aa3930c5bab73c3901ef38ef6ac3 before e810b290922c535feb34bc90ab549446fe94d2a3; affected ea3442efabd0aa3930c5bab73c3901ef38ef6ac3 before d1877cc7270302081a315a81a0ee8331f19f95c8; affected 0d1840b2dd8fe073c020c39bf8e8e89488070801; affected 6.6.118 before 6.6.124; affected 6.12.60 before 6.12.70; affected 6.17.10 before 6.18 |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.6.124 through 6.6.*; unaffected 6.12.70 through 6.12.*; unaffected 6.18.10 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.