CVE-2025-40283 (GCVE-0-2025-40283)

Vulnerability from cvelistv5 – Published: 2025-12-06 21:51 – Updated: 2025-12-06 21:51
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF There is a KASAN: slab-use-after-free read in btusb_disconnect(). Calling "usb_driver_release_interface(&btusb_driver, data->intf)" will free the btusb data associated with the interface. The same data is then used later in the function, hence the UAF. Fix by moving the accesses to btusb data to before the data is free'd.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < 297dbf87989e09af98f81f2bcb938041785557e8 (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < f858f004bc343a7ae9f2533bbb2a3ab27428532f (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < 7a6d1e740220ff9dfcb6a8c994d6ba49e76db198 (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < 5dc00065a0496c36694afe11e52a5bc64524a9b8 (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < 1c28c1e1522c773a94e26950ffb145e88cd9834b (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < 95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < a2610ecd9fd5708be8997ca8f033e4200c0bb6af (git)
Affected: fd913ef7ce619467c6b0644af48ba1fec499c623 , < 23d22f2f71768034d6ef86168213843fc49bf550 (git)
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    Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 5.4.302 , ≤ 5.4.* (semver)
Unaffected: 5.10.247 , ≤ 5.10.* (semver)
Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.59 , ≤ 6.12.* (semver)
Unaffected: 6.17.9 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/btusb.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
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            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.117",
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.59",
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              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.9",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF\n\nThere is a KASAN: slab-use-after-free read in btusb_disconnect().\nCalling \"usb_driver_release_interface(\u0026btusb_driver, data-\u003eintf)\" will\nfree the btusb data associated with the interface. The same data is\nthen used later in the function, hence the UAF.\n\nFix by moving the accesses to btusb data to before the data is free\u0027d."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-06T21:51:07.409Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/297dbf87989e09af98f81f2bcb938041785557e8"
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          "url": "https://git.kernel.org/stable/c/f858f004bc343a7ae9f2533bbb2a3ab27428532f"
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          "url": "https://git.kernel.org/stable/c/5dc00065a0496c36694afe11e52a5bc64524a9b8"
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        {
          "url": "https://git.kernel.org/stable/c/23d22f2f71768034d6ef86168213843fc49bf550"
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      "title": "Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40283",
    "datePublished": "2025-12-06T21:51:07.409Z",
    "dateReserved": "2025-04-16T07:20:57.184Z",
    "dateUpdated": "2025-12-06T21:51:07.409Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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