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CVE-2026-64406 Bluetooth: fix UAF in bt_accept_dequeue()

🗓️ 25 Jul 2026 08:50:47Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Linux Bluetooth fixes UAF in bt_accept_dequeue by retaining the queue-walk reference through unlink.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/af_bluetooth.c",
      "net/bluetooth/l2cap_sock.c"
    ],
    "versions": [
      {
        "version": "751de6ec671fe75ad9cf65a0638d2a06b6a5984d",
        "lessThan": "c0577c55219be42b6ea2ea8db11e85bfab6f4e8d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "407217734835d21d4e0105ebf347860dc1806f88",
        "lessThan": "96ad400d5132eb333f28f6f1e2d58f0728ca9547",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7eebd4c2c86f573af87ff165d08a83432eb0b919",
        "lessThan": "0a98ff4e7b867f72fbb4e1237d81e9fa02ded0a0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d86d2f1b4d9a508c441d3e45277ae1a73cfed57",
        "lessThan": "c66a95e60b65d876a927123b0ed36bd6177d9ca6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "87c543e2f78d0871f271df92dab98901bbd5b6f5",
        "lessThan": "6303ed4bbe0095f4cc195225479bf506e010d1db",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "added1213395071470a900cc845a042fb51882a6",
        "lessThan": "26168db1ce5a9766cde021b18e590a101c056614",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab1513597c6cf17cd1ad2a21e3b045421b48e022",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ab1513597c6cf17cd1ad2a21e3b045421b48e022",
        "lessThan": "4bd0b274054f2679f28b70222b607bb0afc3ab9a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a5ca86a6097a8b030ca3226cd300b17ed330f966",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.259",
        "lessThan": "5.10.261",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThan": "5.15.212",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThan": "6.1.178",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.142",
        "lessThan": "6.6.145",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.12.92",
        "lessThan": "6.12.96",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThan": "6.18.39",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThan": "7.1",
        "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/af_bluetooth.c",
      "net/bluetooth/l2cap_sock.c"
    ],
    "versions": [
      {
        "version": "7.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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05 Aug 2026 12:41Current
CVSS 3.18
EPSS0.00274
36