usb: fix UAF when probe runs concurrent to dyn ID removal

{
  "id": "045302f63b3779e645dd76f2607c20098d457eb22d06a2286d3b53eb23d1bb50",
  "url": "https://osv.dev/vulnerability/CVE-2026-93117",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "usb: fix UAF when probe runs concurrent to dyn ID removal",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: usb: fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held, as remove_id_store can free the node. Thus, make a copy in usb_probe_interface. Clarify the documentation that the id parameter is only valid during the probe. USB serial has the same pattern, but it does not need fixing as the IDs cannot be removed via sysfs.",
    "evidence": "osv:CVE-2026-93117",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.188",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-93117",
      "aliases": [
        "CVE-2026-93117"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "0c7a2b72746a96f999fd2728520d03d94879be69"
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                {
                  "fixed": "9b82ddf76827e2a8ff033a8131ecf24f2d6cae26"
                },
                {
                  "fixed": "44904468e58d3dc3a0229782acbeb9677b060541"
                },
                {
                  "fixed": "64320c6e721bdec4c43a789c866c8a099dd0c843"
                },
                {
                  "fixed": "7e795801295c84a6bbc10a3e7a4c99c50bfe45ac"
                },
                {
                  "fixed": "e6a9c6b79b70046afdf5a1dbd03b1104536f30c0"
                },
                {
                  "fixed": "ef8154d8b52d60338c1fd8d793cd8e891c604c14"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93117.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.33"
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                  "fixed": "6.1.188"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.157"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.110"
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              ]
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.13.0"
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.19.0"
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                  "fixed": "7.2.6"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93117.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.240857359Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/44904468e58d3dc3a0229782acbeb9677b060541",
        "https://git.kernel.org/stable/c/64320c6e721bdec4c43a789c866c8a099dd0c843",
        "https://git.kernel.org/stable/c/7e795801295c84a6bbc10a3e7a4c99c50bfe45ac",
        "https://git.kernel.org/stable/c/9b82ddf76827e2a8ff033a8131ecf24f2d6cae26",
        "https://git.kernel.org/stable/c/e6a9c6b79b70046afdf5a1dbd03b1104536f30c0",
        "https://git.kernel.org/stable/c/ef8154d8b52d60338c1fd8d793cd8e891c604c14",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93117.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93117",
        "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/2026/93xxx/CVE-2026-93117.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-93117",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 517651,
  "published_at": "2026-09-17T16:11:24.509+00:00"
}