Skip to content
Heist/ feed
High

Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2025-40283

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2025-40283

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "297dbf87989e09af98f81f2bcb938041785557e8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "f858f004bc343a7ae9f2533bbb2a3ab27428532f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "7a6d1e740220ff9dfcb6a8c994d6ba49e76db198",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "5dc00065a0496c36694afe11e52a5bc64524a9b8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "1c28c1e1522c773a94e26950ffb145e88cd9834b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "a2610ecd9fd5708be8997ca8f033e4200c0bb6af",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fd913ef7ce619467c6b0644af48ba1fec499c623",
        "lessThan": "23d22f2f71768034d6ef86168213843fc49bf550",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/bluetooth/btusb.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.11"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.11",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.302",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.247",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.197",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.159",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.117",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.59",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.17.9",
        "versionType": "semver",
        "lessThanOrEqual": "6.17.*"
      },
      {
        "status": "unaffected",
        "version": "6.18",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/bluetooth/btusb.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-40283

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30705 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement