CVE-2026-64321

nvme: target: rdma: fix ndev refcount leak on queue connect

MEDIUM
5.5
CVSS Score
Published: July 25, 2026 at 08:49 AM UTC
Updated: September 14, 2026 at 12:34 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.18.396.19 ≤ v < 7.1.46.8 ≤ v < 6.12.966.8 ≤ v < 6.18.396.8 ≤ v < 7.1.46.8 ≤ v < 7.228877977bbc4f44dd3068b74ee781466c597a3b331deaeb11ba7a885116c9c30892b9f763c04d59c6.885a79da286b65ae2238a22ac901a0039779e613ebd3f40fdec552f9200e7b8521ef02b578c9ee8b0
Vendor states this is fixed in 0eaa58988d35fd47ca8811f7f72871591f61ffb (fixed)
Vendor states this is fixed in 204b9645536bb4a77a2cb35e6519dbf9f4ea1665 (fixed)
Vendor states this is fixed in 5828517d17eda27f21d29ea14800c9e0a57bad11 (fixed)
Vendor states this is fixed in 712f3268a62d0df98a7ee991cba963ced2e58007 (fixed)
Vendor states this is fixed in a8803c4f0ac3fa7df5551bbb5a8800c434a94357 (fixed)
Vendor states this is fixed in badc53620fe813b3a9f727ef9526f98567c2c898 (fixed)
Vendor states this is fixed in d65fe42820b890a6a4644de0a95a812471f79ad3 (fixed)
Vendor states this is fixed in 6.12.96 (unaffected)
Vendor states this is fixed in 6.18.39 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 7.1.4 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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