CVE-2026-53073

🗓️ 24 Jun 2026 16:30:14Reported by LinuxType

Linux Bluetooth hci_ldisc clears HCI_UART_PROTO_INIT with a write lock on error to prevent null pointer dereference when registration fails.

Reporter	Title	Published	Views	Family All 6
Cvelist	CVE-2026-53073 Bluetooth: hci_ldisc: Clear HCI_UART_PROTO_INIT on error	24 Jun 202616:30	–	cvelist
Debian CVE	CVE-2026-53073	24 Jun 202616:30	–	debiancve
EUVD	EUVD-2026-38941	24 Jun 202616:30	–	euvd
NVD	CVE-2026-53073	24 Jun 202617:17	–	nvd
OSV	DEBIAN-CVE-2026-53073	24 Jun 202620:48	–	osv
Positive Technologies	PT-2026-51967	24 Jun 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange5.10.237–5.10.258

linux linux_kernelRange5.15.181–5.15.209

linux linux_kernelRange6.1.135–6.1.175

linux linux_kernelRange6.6.88–6.6.141

linux linux_kernelRange6.12.24–6.12.91

linux linux_kernelRange5.4.293–5.5

linux linux_kernelRange6.13.12–6.14

linux linux_kernelRange6.14.3–6.15

linux linux_kernelRange6.15–5.10.258

linux linux_kernelRange5.11.0–5.15.209

linux linux_kernelRange5.16.0–6.1.175

linux linux_kernelRange6.2.0–6.6.141

linux linux_kernelRange6.7.0–6.12.91

linux linux_kernelRange6.13.0–6.18.33

linux linux_kernelRange6.19.0–7.0.10

linux linux_kernelRange7.1.0≥

[
  {
    "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/f4b69c35813c432973d340d3600c01de106ed474
git	www.git.kernel.org/stable/c/ebb39b2d81731b83ee71a1ba6dd0291a57b5ac07
git	www.git.kernel.org/stable/c/68d39ea5e0adc9ecaea1ce8abd842ec972eb8718
git	www.git.kernel.org/stable/c/356dee1bcac4d0d9152390561fa63331ebff211b
git	www.git.kernel.org/stable/c/3daa5818e473ed60eb69d8b5c71b651909d28c5a
git	www.git.kernel.org/stable/c/194f029a4d7f739e44ebc1f473120187b4de5104
git	www.git.kernel.org/stable/c/a673cf6c4ac702cb79ac1f4d7fc4de763a6a3e40
git	www.git.kernel.org/stable/c/ed4033fb85ccaaf6c3983be3c7b037e48253d232

24 Jun 2026 17:17Current

5.8Medium risk

Vulners AI Score5.8