FKIE_CVE-2026-64321

Vulnerability from fkie_nvd - Published: 2026-07-25 10:17 - Updated: 2026-07-25 10:17
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5828517d17eda27f21d29ea14800c9e0a57bad11
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a8803c4f0ac3fa7df5551bbb5a8800c434a94357
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/badc53620fe813b3a9f727ef9526f98567c2c898
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d65fe42820b890a6a4644de0a95a812471f79ad3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/rdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d65fe42820b890a6a4644de0a95a812471f79ad3",
              "status": "affected",
              "version": "31deaeb11ba7a885116c9c30892b9f763c04d59c",
              "versionType": "git"
            },
            {
              "lessThan": "a8803c4f0ac3fa7df5551bbb5a8800c434a94357",
              "status": "affected",
              "version": "31deaeb11ba7a885116c9c30892b9f763c04d59c",
              "versionType": "git"
            },
            {
              "lessThan": "5828517d17eda27f21d29ea14800c9e0a57bad11",
              "status": "affected",
              "version": "31deaeb11ba7a885116c9c30892b9f763c04d59c",
              "versionType": "git"
            },
            {
              "lessThan": "badc53620fe813b3a9f727ef9526f98567c2c898",
              "status": "affected",
              "version": "31deaeb11ba7a885116c9c30892b9f763c04d59c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/rdma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.96",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: target: rdma: fix ndev refcount leak on queue connect\n\nnvmet_rdma_queue_connect() calls nvmet_rdma_find_get_device() which\nacquires a reference on the returned ndev via kref_get(). 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."
    }
  ],
  "id": "CVE-2026-64321",
  "lastModified": "2026-07-25T10:17:13.530",
  "metrics": {},
  "published": "2026-07-25T10:17:13.530",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5828517d17eda27f21d29ea14800c9e0a57bad11"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a8803c4f0ac3fa7df5551bbb5a8800c434a94357"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/badc53620fe813b3a9f727ef9526f98567c2c898"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d65fe42820b890a6a4644de0a95a812471f79ad3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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