« Volver al listado

CVE-2026-89623

Estado: RecibidaSin puntuar—

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

HID: mcp2221: stop device IO before hid_hw_stop

Quiesce device IO at the start of the devm cleanup callback mcp2221_hid_unregister() so that incoming HID reports cannot race with hardware teardown during probe failure or device removal, addressing a potential use-after-free.

Guard the call to hid_device_io_stop() with io_started. On normal removal hid_device_remove() has already cleared io_started before the devres group is released, so an unconditional call would otherwise hit the !io_started path and emit a spurious "io already stopped" warning on every removal. The guard preserves the probe-failure balancing, where io_started is still set after hid_device_io_start(), while staying silent on the normal removal path.

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)

Mostrar
{
  "id": "CVE-2026-89623",
  "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": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645",
              "lessThan": "85d963499f1feeea287c0a37c3eac3fc1898eca9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645",
              "lessThan": "0ae90a19e6b5a8557d25d95facb7e01c9c07af38",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645",
              "lessThan": "c99ba6c234d4d537c317336376b78c088174034a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645",
              "lessThan": "2eda1513f573945c1e3a0090341f3d28740463b1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645",
              "lessThan": "dca151633c0fde90935311c60e7cfc064aa56134",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hid/hid-mcp2221.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6.8",
              "lessThan": "6.6.157",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.8",
              "lessThan": "6.12.109",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.8",
              "lessThan": "6.18.50",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.8",
              "lessThan": "7.2.4",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.8",
              "lessThan": "7.3-rc1",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/hid/hid-mcp2221.c"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-11T20:19:47.630",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/85d963499f1feeea287c0a37c3eac3fc1898eca9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: mcp2221: stop device IO before hid_hw_stop\n\nQuiesce device IO at the start of the devm cleanup callback\nmcp2221_hid_unregister() so that incoming HID reports cannot race with\nhardware teardown during probe failure or device removal, addressing a\npotential use-after-free.\n\nGuard the call to hid_device_io_stop() with io_started. On normal\nremoval hid_device_remove() has already cleared io_started before the\ndevres group is released, so an unconditional call would otherwise hit\nthe !io_started path and emit a spurious \"io already stopped\" warning\non every removal. The guard preserves the probe-failure balancing,\nwhere io_started is still set after hid_device_io_start(), while\nstaying silent on the normal removal path."
    }
  ],
  "lastModified": "2026-09-14T13:19:16.097",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}