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CVE-2026-90222

Estado: RecibidaSin puntuar—

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

nfc: pn533: hold a reference to the request skb during send_frame

__pn533_send_async() publishes the command and then calls dev->phy_ops->send_frame(). Once dev->cmd is set, an incoming frame can be matched to this command: the I2C threaded IRQ runs pn533_recv_frame(), which queues cmd_complete_work, and pn533_send_async_complete() frees cmd->req with consume_skb().

On the I2C transport, pn533_i2c_send_frame() still dereferences the same skb after i2c_master_send() returns, so a completion that races the send can free the skb while the transport is still using it.

Leer descripción completaMostrar menos

The request skb is owned by the command object and may be freed by command completion at any time after dev->cmd is published, so the transport send path must not assume it stays alive. Hold a temporary reference to the request skb across the send_frame() call so the transport always sees a live skb even if completion races the send. Add a pn533_send_cmd_frame() helper and use it from all three send paths.

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-2026-90222",
  "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": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "8710faddef4ad8b2a6bfa985d896e2e1bfb77018",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "19f1239758c23f087f4c25733cfcf62bf0b06051",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "7ee72c64b4b66b1b42dbddbca0a80a218f1b9297",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "753bdaf3220fe8371a6c3c75da645ea7753d11be",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "d329f61ad5786900334a54c2445dc99feda545bf",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "7a8e0a7aef80721da287ac246349aba7d98f6aed",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "3e7a093c177f9f8b9fd039cab41191515079425a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "47792358a624ea066455ef86b744159928cd7716",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/nfc/pn533/pn533.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/nfc/pn533/pn533.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:17.687",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/19f1239758c23f087f4c25733cfcf62bf0b06051",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3e7a093c177f9f8b9fd039cab41191515079425a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/47792358a624ea066455ef86b744159928cd7716",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/753bdaf3220fe8371a6c3c75da645ea7753d11be",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7a8e0a7aef80721da287ac246349aba7d98f6aed",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7ee72c64b4b66b1b42dbddbca0a80a218f1b9297",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8710faddef4ad8b2a6bfa985d896e2e1bfb77018",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d329f61ad5786900334a54c2445dc99feda545bf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: hold a reference to the request skb during send_frame\n\n__pn533_send_async() publishes the command and then calls\ndev->phy_ops->send_frame(). Once dev->cmd is set, an incoming frame\ncan be matched to this command: the I2C threaded IRQ runs\npn533_recv_frame(), which queues cmd_complete_work, and\npn533_send_async_complete() frees cmd->req with consume_skb().\n\nOn the I2C transport, pn533_i2c_send_frame() still dereferences the same\nskb after i2c_master_send() returns, so a completion that races the\nsend can free the skb while the transport is still using it.\n\nThe request skb is owned by the command object and may be freed by\ncommand completion at any time after dev->cmd is published, so the\ntransport send path must not assume it stays alive. Hold a temporary\nreference to the request skb across the send_frame() call so the\ntransport always sees a live skb even if completion races the send.\nAdd a pn533_send_cmd_frame() helper and use it from all three send\npaths."
    }
  ],
  "lastModified": "2026-09-17T17:17:17.687",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}