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CVE-2026-72128nvmet: fix refcount leak in nvmet_sq_create()

Description

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix refcount leak in nvmet_sq_create() In nvmet_sq_create(), a reference on the ctrl is taken via kref_get_unless_zero() before calling nvmet_check_sqid(). If nvmet_check_sqid() fails, the function returns the error directly without releasing the reference, leading to a leak. Fix this by jumping to the "ctrl_put" label, which already performs the necessary nvmet_ctrl_put(ctrl). This ensures the reference is properly released on this error path.

Timeline

  1. ID reserved

    By Linux

  2. · 6 days later

    Published

  3. · 2 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.

EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (15 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

  • Linux · Linux

    • affected 1eb380caf5275bba1d3d6182dde1fd740f331743 – < 26355295ce21cb046546085c3a81abe68160a784
    • affected 1eb380caf5275bba1d3d6182dde1fd740f331743 – < fcef60ed5f714a24104eb021d6397a67955ebeff
    • affected 1eb380caf5275bba1d3d6182dde1fd740f331743 – < 34b9a83c50660148bde01cde16451dbe78369749

  • Linux · Linux

    • affected 6.14
    • unaffected < 6.14
    • unaffected 6.18.40 – ≤ 6.18.*
    • unaffected 7.1.5 – ≤ 7.1.*
    • unaffected 7.2 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .