CVE-2026-23261None▾ SunlitIn 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() -> …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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.
Linux >= 5fe335a80548e2eda5d51fab801108b323600e95 < 7c54d3f5ebbc5982daaa004260242dc07ac943eaLinux >= 17c3a66d7ea2d303f783796d62f99e2e23b68c90 < fa301aef50e3f3b5be6ee53457608beae5aa7a01Linux >= ea3442efabd0aa3930c5bab73c3901ef38ef6ac3 < e810b290922c535feb34bc90ab549446fe94d2a3Linux >= ea3442efabd0aa3930c5bab73c3901ef38ef6ac3 < d1877cc7270302081a315a81a0ee8331f19f95c8Linux 0d1840b2dd8fe073c020c39bf8e8e89488070801Linux >= 6.6.118 < 6.6.124Linux >= 6.12.60 < 6.12.70Linux >= 6.17.10 < 6.18Linux 6.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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