CVE-2026-45836

🗓️ 26 May 2026 16:14:13Reported by LinuxType

Linux Bluetooth L2CAP fix null pointer dereference by adding NULL guard in l2cap_sock_get_sndtimeo_cb.

Reporter	Title	Published	Views	Family All 33
ATTACKERKB	CVE-2026-45836	26 May 202616:14	–	attackerkb
CNNVD	Linux kernel 安全漏洞	26 May 202600:00	–	cnnvd
Cvelist	CVE-2026-45836 Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()	26 May 202616:14	–	cvelist
Debian CVE	CVE-2026-45836	26 May 202616:14	–	debiancve
EUVD	EUVD-2026-31858	26 May 202616:14	–	euvd
Microsoft CVE	Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()	28 May 202608:05	–	mscve
NVD	CVE-2026-45836	26 May 202617:16	–	nvd
OPENSUSE Linux	kernel-devel-7.0.11-1.1 on GA media (moderate)	8 Jun 202600:00	–	opensuse
OSV	BELL-CVE-2026-45836	28 May 202606:10	–	osv
OSV	DEBIAN-CVE-2026-45836	26 May 202617:16	–	osv

Vulners

CNA

Node

linux linux_kernelRange3.13–5.10.258

linux linux_kernelRange5.11.0–5.15.209

linux linux_kernelRange5.16.0–6.1.175

linux linux_kernelRange6.2.0–6.6.140

linux linux_kernelRange6.7.0–6.12.90

linux linux_kernelRange6.13.0–6.18.30

linux linux_kernelRange6.19.0–7.0.7

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": [
      "net/bluetooth/l2cap_sock.c"
    ],
    "versions": [
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "fd072f833147b0bc10c43a454624cb99d02f3fc7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "6e8d1a2a677a81caa60cf0aabd4217bd585fbba1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "e1863e7480feddb90125d0dd5a1b572972d75908",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "cf1fd517f892ded88168df878f834b625133f86d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "58dc5e3d8768e121907608e6e196a908512fb083",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "32bd343803d4ba47cc516f9d5f037f01b855d767",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "a93d66907dd4d29b65c9797a93784bf61906d6d6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8d836d71e2223b8961b21112bb4ce89ef8231682",
        "lessThan": "78a88d43dab8d23aeef934ed8ce34d40e6b3d613",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/l2cap_sock.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.13",
        "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": "6.6.140",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.90",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.30",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.7",
        "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/78a88d43dab8d23aeef934ed8ce34d40e6b3d613
git	www.git.kernel.org/stable/c/e1863e7480feddb90125d0dd5a1b572972d75908
git	www.git.kernel.org/stable/c/cf1fd517f892ded88168df878f834b625133f86d
git	www.git.kernel.org/stable/c/32bd343803d4ba47cc516f9d5f037f01b855d767
git	www.git.kernel.org/stable/c/a93d66907dd4d29b65c9797a93784bf61906d6d6
git	www.git.kernel.org/stable/c/58dc5e3d8768e121907608e6e196a908512fb083
git	www.git.kernel.org/stable/c/fd072f833147b0bc10c43a454624cb99d02f3fc7
git	www.git.kernel.org/stable/c/6e8d1a2a677a81caa60cf0aabd4217bd585fbba1

17 Jun 2026 10:52Current

5.8Medium risk

Vulners AI Score5.8

EPSS0.00176