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CVE-2026-23360: nvme: fix admin queue leak on controller reset

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-25 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: nvme: fix admin queue leak on controller reset When nvme_alloc_admin_tag_set() is called during a controller reset, a previous admin queue may still exist. Release it properly before allocating a new one to avoid orphaning the old queue. This fixes a regression introduced by commit 03b3bcd319b3 ("nvme: fix admin request_queue lifetime").

Affected products

• Linux kernel: from 6.6.120 before 6.6.131; from 6.12.62 before 6.12.77; from 6.17.12 before 6.18; from 6.18.1 before 6.18.17; from 6.19 before 6.19.7; 6.1.167, 6.18, 7.0-rc1, 7.0-rc2 — fixed in 6.12.77, 6.18, 6.18.17, 6.19.7, 6.6.131

How to fix

Upgrade to a fixed version: Linux kernel 6.12.77, 6.18, 6.18.17, 6.19.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/089a6f17881a82c6c6e05f8564a867be0767eade
• https://git.kernel.org/stable/c/2efbc838a26d3da72d8fe05770bdf869d4ca3ac5
• https://git.kernel.org/stable/c/64f87b96de0e645a4c066c7cffd753f334446db6
• https://git.kernel.org/stable/c/6e28bab900e40e4d610b04f9f82e01983d8fb356
• https://git.kernel.org/stable/c/8eb2b3cdcd9b6631b94b82c1f4f6bc32b40d942f
• https://git.kernel.org/stable/c/b84bb7bd913d8ca2f976ee6faf4a174f91c02b8d
• https://git.kernel.org/stable/c/e159eb852aeee95443a9458ecb7d072bbb689913

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