ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission

{
  "id": "96917b969c271f11038af0e552fabfd73923f1bc87479fd55e415ad87dc8850f",
  "url": "https://osv.dev/vulnerability/CVE-2026-64601",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission In capture_urb_complete(), usb_anchor_urb() is called on every completion callback, but the URB is already anchored from the initial submission in tascam_trigger_start(). Each redundant call corrupts the anchor's doubly-linked list and inflates the URB refcount. When usb_kill_anchored_urbs() traverses the list during stream stop / suspend / disconnect, the corrupted list leads to use-after-free. Remove the redundant usb_anchor_urb() from the resubmit path.",
    "evidence": "osv:CVE-2026-64601",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.39",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-64601",
      "aliases": [
        "CVE-2026-64601"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c1bb0c13e430623c26543baae5bb9ae21139db87"
                },
                {
                  "fixed": "16f14f55141d4c55c3f321f93c328fff7cd6860a"
                },
                {
                  "fixed": "ab1db64912428cdf06a4f9542e16e0575e9ad59f"
                },
                {
                  "fixed": "5cff1529a2f9b3461a7f5a6e36a86682fc290534"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64601.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.18.0"
                },
                {
                  "fixed": "6.18.39"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.1.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64601.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.791156205Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/16f14f55141d4c55c3f321f93c328fff7cd6860a",
        "https://git.kernel.org/stable/c/5cff1529a2f9b3461a7f5a6e36a86682fc290534",
        "https://git.kernel.org/stable/c/ab1db64912428cdf06a4f9542e16e0575e9ad59f",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64601.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-64601",
        "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/2026/64xxx/CVE-2026-64601.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-64601",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504324,
  "published_at": "2026-08-06T07:13:53.926+00:00"
}