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CVE-2026-23461 Bluetooth: L2CAP: Fix use-after-free in l2cap_unregister_user

🗓️ 03 Apr 2026 15:15:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

Bluetooth L2CAP fix uses conn lock in register/unregister to prevent use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-23461
3 Apr 202615:15
attackerkb
AstraLinux
Astra Linux – Vulnerability in Linux 5.10
20 May 202605:53
astralinux
Circl
CVE-2026-23461
31 May 202620:00
circl
CNNVD
Linux kernel 安全漏洞
3 Apr 202600:00
cnnvd
CVE
CVE-2026-23461
3 Apr 202615:15
cve
Debian
[SECURITY] [DSA 6238-1] linux security update
30 Apr 202620:05
debian
Debian CVE
CVE-2026-23461
3 Apr 202615:15
debiancve
Tenable Nessus
Debian dsa-6238 : ata-modules-6.12.74+deb13+1-armmp-di - security update
30 Apr 202600:00
nessus
Tenable Nessus
openSUSE 16 Security Update : kernel (openSUSE-SU-2026:20826-1)
1 Jun 202600:00
nessus
Tenable Nessus
SUSE SLES12 Security Update : kernel (SUSE-SU-2026:2068-1)
29 May 202600:00
nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/l2cap_core.c"
    ],
    "versions": [
      {
        "version": "efc30877bd4bc85fefe98d80af60fafc86e5775e",
        "lessThan": "11a87dd5df428a4b79a84d2790cac7f3c73f1f0d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f87271d21dd4ee83857ca11b94e7b4952749bbae",
        "lessThan": "c22a5e659959eb77c2fbb58a5adfaf3c3dab7abf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab4eedb790cae44313759b50fe47da285e2519d5",
        "lessThan": "da3000cbe4851458a22be38bb18c0689c39fdd5f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab4eedb790cae44313759b50fe47da285e2519d5",
        "lessThan": "71030f3b3015a412133a805ff47970cdcf30c2b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab4eedb790cae44313759b50fe47da285e2519d5",
        "lessThan": "752a6c9596dd25efd6978a73ff21f3b592668f4a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "18ab6b6078fa8191ca30a3065d57bf35d5635761",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.6.84",
        "lessThan": "6.6.130",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.12.20",
        "lessThan": "6.12.78",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.13.8",
        "lessThan": "6.14",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/l2cap_core.c"
    ],
    "versions": [
      {
        "version": "6.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.78",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.20",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.10",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 16:04Current
CVSS 3.18.8
EPSS0.00023
21