CVE-2026-93117 (GCVE-0-2026-93117)
Vulnerability from cvelistv5
Published
2026-09-17 16:11
Modified
2026-10-19 09:05
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0c7a2b72746a96f999fd2728520d03d94879be69
Version: 0c7a2b72746a96f999fd2728520d03d94879be69
Version: 0c7a2b72746a96f999fd2728520d03d94879be69
Version: 0c7a2b72746a96f999fd2728520d03d94879be69
Version: 0c7a2b72746a96f999fd2728520d03d94879be69
Version: 0c7a2b72746a96f999fd2728520d03d94879be69
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{
  "containers": {
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          "product": "Linux",
          "programFiles": [
            "drivers/usb/core/driver.c",
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when usb_dynids_lock is held,\nas remove_id_store can free the node. Thus, make a copy in\nusb_probe_interface. Clarify the documentation that the id parameter is\nonly valid during the probe.\n\nUSB serial has the same pattern, but it does not need fixing as the IDs\ncannot be removed via sysfs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:05:50.941Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9b82ddf76827e2a8ff033a8131ecf24f2d6cae26"
        },
        {
          "url": "https://git.kernel.org/stable/c/44904468e58d3dc3a0229782acbeb9677b060541"
        },
        {
          "url": "https://git.kernel.org/stable/c/64320c6e721bdec4c43a789c866c8a099dd0c843"
        },
        {
          "url": "https://git.kernel.org/stable/c/7e795801295c84a6bbc10a3e7a4c99c50bfe45ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6a9c6b79b70046afdf5a1dbd03b1104536f30c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef8154d8b52d60338c1fd8d793cd8e891c604c14"
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      ],
      "title": "usb: fix UAF when probe runs concurrent to dyn ID removal",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93117",
    "datePublished": "2026-09-17T16:11:24.509Z",
    "dateReserved": "2026-09-17T16:02:15.086Z",
    "dateUpdated": "2026-10-19T09:05:50.941Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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