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FKIE_CVE-2026-72128

Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/26355295ce21cb046546085c3a81abe68160a784
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34b9a83c50660148bde01cde16451dbe78369749
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fcef60ed5f714a24104eb021d6397a67955ebeff
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "26355295ce21cb046546085c3a81abe68160a784",
              "status": "affected",
              "version": "1eb380caf5275bba1d3d6182dde1fd740f331743",
              "versionType": "git"
            },
            {
              "lessThan": "fcef60ed5f714a24104eb021d6397a67955ebeff",
              "status": "affected",
              "version": "1eb380caf5275bba1d3d6182dde1fd740f331743",
              "versionType": "git"
            },
            {
              "lessThan": "34b9a83c50660148bde01cde16451dbe78369749",
              "status": "affected",
              "version": "1eb380caf5275bba1d3d6182dde1fd740f331743",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/target/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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\nnvmet: fix refcount leak in nvmet_sq_create()\n\nIn nvmet_sq_create(), a reference on the ctrl is taken\nvia kref_get_unless_zero() before calling nvmet_check_sqid().\nIf nvmet_check_sqid() fails, the function returns the error\ndirectly without releasing the reference, leading to a leak.\n\nFix this by jumping to the \"ctrl_put\" label, which already\nperforms the necessary nvmet_ctrl_put(ctrl). This ensures the\nreference is properly released on this error path."
    }
  ],
  "id": "CVE-2026-72128",
  "lastModified": "2026-08-17T06:18:12.447",
  "metrics": {},
  "published": "2026-08-15T06:21:30.217",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/26355295ce21cb046546085c3a81abe68160a784"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34b9a83c50660148bde01cde16451dbe78369749"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fcef60ed5f714a24104eb021d6397a67955ebeff"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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