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CVE-2026-68181

Estado: RecibidaSin puntuar—

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

mei: bus: access mei_device under device_lock on cleanup

Fix couple of problems in mei_cl_bus_dev_release():

mei_cl_flush_queues() is running without lock. bus->file_list access after mei_dev_bus_put(bus) can become a use-after-free if this was the last reference to bus.

Protect queues cleanup and WARN traversal by device lock there to avoid the concurrent access problems. Move WARN traversal before mei_dev_bus_put(bus).

This file uses bus variable name for mei_device, adjust code of mei_cl_bus_dev_release() to use bus variable too.

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-2026-68181",
  "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": "6f2a6ef86b23a30b92ad57981de537bce67bfa45",
              "lessThan": "02e3a755086db847d795f2593ebc45e8ee4f1755",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "24f4ceeaeee7983c07590149556a0e33efe2ec90",
              "lessThan": "441559d4c595f839b39f0ab6a4ae628427c2fd9e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "612c8d21ce6e37b73f3106aec7ffa35959d40261",
              "lessThan": "c88c030a324c9018b77894a19b2564eb66862020",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "35e8a426b16adbecae7a4e0e3c00fc8d0273db53",
              "lessThan": "59dd34854202d9a3faaa87a85205e553fe7150e1",
              "versionType": "git"
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            {
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            {
              "status": "affected",
              "version": "6.1.149",
              "lessThan": "6.1.184",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.103",
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              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.12.43",
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            },
            {
              "status": "affected",
              "version": "6.15.11",
              "lessThan": "6.16",
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            {
              "status": "affected",
              "version": "6.16.2",
              "lessThan": "6.17",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/misc/mei/bus.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.17",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.184",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/misc/mei/bus.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:05.110",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/02e3a755086db847d795f2593ebc45e8ee4f1755",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/441559d4c595f839b39f0ab6a4ae628427c2fd9e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/59dd34854202d9a3faaa87a85205e553fe7150e1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7cf79e8d682fe93777268f029668ce5e214237fd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c88c030a324c9018b77894a19b2564eb66862020",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f112ea910e554d58b4b39a4492b7d302f0f4204f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmei: bus: access mei_device under device_lock on cleanup\n\nFix couple of problems in mei_cl_bus_dev_release():\n\nmei_cl_flush_queues() is running without lock.\nbus->file_list access after mei_dev_bus_put(bus) can become a\nuse-after-free if this was the last reference to bus.\n\nProtect queues cleanup and WARN traversal by device lock there\nto avoid the concurrent access problems.\nMove WARN traversal before mei_dev_bus_put(bus).\n\nThis file uses bus variable name for mei_device, adjust\ncode of mei_cl_bus_dev_release() to use bus variable too."
    }
  ],
  "lastModified": "2026-08-23T13:16:34.900",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}