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CVE-2026-53073 Bluetooth: hci_ldisc: Clear HCI_UART_PROTO_INIT on error

🗓️ 24 Jun 2026 16:30:14Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Clear HCI_UART_PROTO_INIT with a write lock on error to prevent null dereference in Bluetooth HCI UART.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/bluetooth/hci_ldisc.c"
    ],
    "versions": [
      {
        "version": "a40f94f7caa8d3421b64f63ac31bc0f24c890f39",
        "lessThan": "ebb39b2d81731b83ee71a1ba6dd0291a57b5ac07",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9e5a0f5777162e503400c70c6ed25fbbe2d38799",
        "lessThan": "ed4033fb85ccaaf6c3983be3c7b037e48253d232",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "80f14e9de6a43a0bd8194cad1003a3e6dcbc3984",
        "lessThan": "356dee1bcac4d0d9152390561fa63331ebff211b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "02e1bcdfdf769974e7e9fa285e295cd9852e2a38",
        "lessThan": "a673cf6c4ac702cb79ac1f4d7fc4de763a6a3e40",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "281782d2c6730241e300d630bb9f200d831ede71",
        "lessThan": "f4b69c35813c432973d340d3600c01de106ed474",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5df5dafc171b90d0b8d51547a82657cd5a1986c7",
        "lessThan": "3daa5818e473ed60eb69d8b5c71b651909d28c5a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5df5dafc171b90d0b8d51547a82657cd5a1986c7",
        "lessThan": "194f029a4d7f739e44ebc1f473120187b4de5104",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5df5dafc171b90d0b8d51547a82657cd5a1986c7",
        "lessThan": "68d39ea5e0adc9ecaea1ce8abd842ec972eb8718",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1dcf08fcff5ca529de6dc0395091f28854f4e54a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8e5aff600539e5faea294d9612cca50220e602b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "db7509fa110dd9b11134b75894677f30353b2c51",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.237",
        "lessThan": "5.10.258",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.181",
        "lessThan": "5.15.209",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.135",
        "lessThan": "6.1.175",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.88",
        "lessThan": "6.6.141",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.12.24",
        "lessThan": "6.12.91",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.4.293",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.13.12",
        "lessThan": "6.14",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.14.3",
        "lessThan": "6.15",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/bluetooth/hci_ldisc.c"
    ],
    "versions": [
      {
        "version": "6.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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