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CVE-2026-98227

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

memstick: ms_block: destroy io_queue workqueue on removal

msb_init_disk() creates the per-card ordered workqueue msb->io_queue with alloc_ordered_workqueue(). It is torn down with destroy_workqueue() only on the init error path; msb_remove() never destroys it. msb_stop() merely flushes the queue, and neither msb_data_clear() nor put_disk() free it. As a result every card insert/remove cycle leaks the workqueue and its kworker, exhausting kernel memory over repeated cycles.

Destroy the workqueue in msb_remove() after the disk has been removed and the queue drained.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-98227",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
              "lessThan": "0ff795163f37109a134b5a421558530f8d091544",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
              "lessThan": "19c3da6621a253f1f8b937ed91bc22330a930d9c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
              "lessThan": "9a2e7cdc0880e735aff0968ee402f2c92a992b9b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
              "lessThan": "6611f78ec3fd4b33a00bfda20725b254a22979f6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
              "lessThan": "f222bb8c30cf5699c560b29179ff2bddcac1f950",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
              "lessThan": "90af7fde083e1b22c349c3a8b1626728e44e474c",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/memstick/core/ms_block.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/memstick/core/ms_block.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-06T09:18:09.963",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0ff795163f37109a134b5a421558530f8d091544",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/19c3da6621a253f1f8b937ed91bc22330a930d9c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6611f78ec3fd4b33a00bfda20725b254a22979f6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/90af7fde083e1b22c349c3a8b1626728e44e474c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9a2e7cdc0880e735aff0968ee402f2c92a992b9b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f222bb8c30cf5699c560b29179ff2bddcac1f950",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: ms_block: destroy io_queue workqueue on removal\n\nmsb_init_disk() creates the per-card ordered workqueue msb->io_queue with\nalloc_ordered_workqueue(). It is torn down with destroy_workqueue() only\non the init error path; msb_remove() never destroys it. msb_stop() merely\nflushes the queue, and neither msb_data_clear() nor put_disk() free it. As\na result every card insert/remove cycle leaks the workqueue and its\nkworker, exhausting kernel memory over repeated cycles.\n\nDestroy the workqueue in msb_remove() after the disk has been removed and\nthe queue drained."
    }
  ],
  "lastModified": "2026-10-06T09:18:09.963",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}