CVE-2026-90222

Full vulnerability record from the local CVENow database.

Description

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. 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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-17 17:17:17.687000

Last modified

2026-10-19 09:19:12.397000

View original CVE JSON

{
  "id": "CVE-2026-90222",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-17T17:17:17.687",
  "lastModified": "2026-10-19T09:19:12.397",
  "vulnStatus": "Received",
  "cveTags": [],
  "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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/nfc/pn533/pn533.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "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"
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            {
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              "versionType": "git",
              "status": "affected"
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            {
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              "versionType": "git",
              "status": "affected"
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            {
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              "versionType": "git",
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              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/nfc/pn533/pn533.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.7",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.7",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.10.270",
              "lessThanOrEqual": "5.10.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.221",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.188",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.157",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.110",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.52",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.6",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "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"
    },
    {
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      "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"
    }
  ]
}