CVE-2026-64321

In the Linux kernel, the following vulnerability has been resolved: nvme: target: rdma: fix ndev refcount leak on queue connect nvmet_rdma_queue_connect() calls nvmet_rdma_find_get_device() which acquires a reference on the returned ndev via kref_get(). On the path where the host queue backlog is exceeded and the function returns NVME_SC_CONNECT_CTRL_BUSY, reference of ndev is not released, leaking the kref. Fix this by adding a goto to the existing put_device label before the early return.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/00eaa58988d35fd47ca8811f7f72871591f61ffb
https://git.kernel.org/stable/c/204b9645536bb4a77a2cb35e6519dbf9f4ea1665
https://git.kernel.org/stable/c/5828517d17eda27f21d29ea14800c9e0a57bad11	Patch
https://git.kernel.org/stable/c/712f3268a62d0df98a7ee991cba963ced2e58007
https://git.kernel.org/stable/c/a8803c4f0ac3fa7df5551bbb5a8800c434a94357	Patch
https://git.kernel.org/stable/c/badc53620fe813b3a9f727ef9526f98567c2c898	Patch
https://git.kernel.org/stable/c/d65fe42820b890a6a4644de0a95a812471f79ad3	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-07-25 10:17

Updated : 2026-09-14 12:17

NVD link : CVE-2026-64321

Mitre link : CVE-2026-64321

CVE.ORG link : CVE-2026-64321

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-Other

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On the path\nwhere the host queue backlog is exceeded and the function returns\nNVME_SC_CONNECT_CTRL_BUSY, reference of ndev is not released, leaking\nthe kref.\n\nFix this by adding a goto to the existing put_device label before the\nearly return."}], "lastModified": "2026-09-14T12:17:44.403", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E97CF8C4-8024-4996-ADD8-35BAE38BC68B", "versionEndExcluding": "6.12.96", "versionStartIncluding": "6.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "914AE4BC-3D59-4C5A-9DB5-9CE327B429F7", "versionEndExcluding": "6.18.39", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6228DDD6-4557-4AA3-9F43-AB995D471E42", "versionEndExcluding": "7.1.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}