CVE-2026-23261

Enriched by CISA
 

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.
https://nvd.nist.gov/vuln/detail/CVE-2026-23261

Categories

No category defined

References


 

AFFECTED (from MITRE)

Vendor Product Versions
Linux Linux
  • 5fe335a80548e2eda5d51fab801108b323600e95 < 7c54d3f5ebbc5982daaa004260242dc07ac943ea [affected]
  • 17c3a66d7ea2d303f783796d62f99e2e23b68c90 < fa301aef50e3f3b5be6ee53457608beae5aa7a01 [affected]
  • ea3442efabd0aa3930c5bab73c3901ef38ef6ac3 < e810b290922c535feb34bc90ab549446fe94d2a3 [affected]
  • ea3442efabd0aa3930c5bab73c3901ef38ef6ac3 < d1877cc7270302081a315a81a0ee8331f19f95c8 [affected]
  • 0d1840b2dd8fe073c020c39bf8e8e89488070801 [affected]
Linux Linux
  • 6.18 [affected]
  • < 6.18 [unaffected]
  • 6.6.124 ≤ 6.6.* [unaffected]
  • 6.12.70 ≤ 6.12.* [unaffected]
  • 6.18.10 ≤ 6.18.* [unaffected]
  • 6.19 ≤ * [unaffected]
© 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

CPE

cpe start end
Configuration 1
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.6.118 < 6.6.124
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.12.60 < 6.12.70
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.18 < 6.18.10
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.18 < 6.19
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* >= 6.17.10

REMEDIATION


EXPLOITS

Exploit-db.com

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POC Github

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Other Nist (github, ...)

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CAPEC

Common Attack Pattern Enumerations and Classifications

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