FKIE_CVE-2026-31523

Vulnerability from fkie_nvd - Published: 2026-04-22 14:16 - Updated: 2026-11-11 23:10
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: ensure we're polling a polled queue A user can change the polled queue count at run time. There's a brief window during a reset where a hipri task may try to poll that queue before the block layer has updated the queue maps, which would race with the now interrupt driven queue and may cause double completions.

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/host/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "965e2c943f065122f14282a88d70a8a92e12a4da",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "ba167d5982e2eb6ff9356d409eca592ce99555da",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "0685dd9cb855ab77fcf3577b4702ba1d6df1c98d",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "6f12734c4b619f923a4df0b1a46b8098b187d324",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "acbc72dd1a09df53cafcf577259f4678be6afd6d",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "b222680ba55e018426c4535067a008f1d81a5d21",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            },
            {
              "lessThan": "166e31d7dbf6aa44829b98aa446bda5c9580f12a",
              "status": "affected",
              "version": "4b04cc6a8f86c4842314def22332de1f15de8523",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/host/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "lessThan": "5.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.131",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.10.253",
              "versionStartIncluding": "5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: ensure we\u0027re polling a polled queue\n\nA user can change the polled queue count at run time. There\u0027s a brief\nwindow during a reset where a hipri task may try to poll that queue\nbefore the block layer has updated the queue maps, which would race with\nthe now interrupt driven queue and may cause double completions."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnvme-pci: asegurar que estamos sondeando una cola sondeada\n\nUn usuario puede cambiar el recuento de colas sondeadas en tiempo de ejecuci\u00f3n. Hay una breve ventana durante un reinicio donde una tarea de alta prioridad puede intentar sondear esa cola antes de que la capa de bloques haya actualizado los mapas de cola, lo que competir\u00eda con la cola ahora impulsada por interrupciones y puede causar dobles finalizaciones."
    }
  ],
  "id": "CVE-2026-31523",
  "lastModified": "2026-11-11T23:10:00.263",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-31523",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-11-05T21:37:23.406892Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-22T14:16:52.263",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d"
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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