can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak

{
  "id": "c0a80732669e4bae78ba5ad327dc876b2dcbf46ccc17552c70025a69713ab120",
  "url": "https://osv.dev/vulnerability/CVE-2026-23061",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak Fix similar memory leak as in commit 7352e1d5932a (\"can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak\"). In kvaser_usb_set_{,data_}bittiming() -> kvaser_usb_setup_rx_urbs(), the URBs for USB-in transfers are allocated, added to the dev->rx_submitted anchor and submitted. In the complete callback kvaser_usb_read_bulk_callback(), the URBs are processed and resubmitted. In kvaser_usb_remove_interfaces() the URBs are freed by calling usb_kill_anchored_urbs(&dev->rx_submitted). However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in usb_kill_anchored_urbs(). Fix the memory leak by anchoring the URB in the kvaser_usb_read_bulk_callback() to the dev->rx_submitted anchor.",
    "evidence": "osv:CVE-2026-23061",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "evidence": "/affected/1/ranges"
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          },
          {
            "value": "6.18.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23061",
      "aliases": [
        "CVE-2026-23061"
      ],
      "affected": [
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            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23061.json"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
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      ],
      "modified": "2026-10-28T02:30:24.131915005Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/248e8e1a125fa875158df521b30f2cc7e27eeeaa",
        "https://git.kernel.org/stable/c/3b1a593eab941c3f32417896cc7df564191f2482",
        "https://git.kernel.org/stable/c/40a3334ffda479c63e416e61ff086485e24401f7",
        "https://git.kernel.org/stable/c/7c308f7530bffafa994e0aa8dc651a312f4b9ff4",
        "https://git.kernel.org/stable/c/94a7fc42e21c7d9d1c49778cd1db52de5df52a01",
        "https://git.kernel.org/stable/c/c1b39fa24c140bc616f51fef4175c1743e2bb132",
        "https://git.kernel.org/stable/c/d9d824582f2ec76459ffab449e9b05c7bc49645c",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23061.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23061",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23061.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23061",
        "evidence": "/id"
      }
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490686,
  "published_at": "2026-02-04T16:07:43.626+00:00"
}