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CVE-2026-63948 Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn

🗓️ 19 Jul 2026 14:55:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Bluetooth L2CAP: fix channel reference leak in l2cap_chan_timeout when no connection.

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/l2cap_core.c"
    ],
    "versions": [
      {
        "version": "06acb75e7ed600d0bbf7bff5628aa8f24a97978c",
        "lessThan": "50f1bcaaaa3a80bb1c3472044bc146e8d49d51ee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e97e16433eb4533083b096a3824b93a5ca3aee79",
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        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8960ff650aec70485b40771cd8e6e8c4cb467d33",
        "lessThan": "8894c2010435a56ce7c6c2a8785860c13554df2f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "955b5b6c54d95b5e7444dfc81c95c8e013f27ac0",
        "lessThan": "63cd225cc13d782a85e2a73c04d0d350153eada1",
        "status": "affected",
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      },
      {
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      },
      {
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        "status": "affected",
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      },
      {
        "version": "adf0398cee86643b8eacde95f17d073d022f782c",
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      },
      {
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      {
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      },
      {
        "version": "eb86f955488c39526534211f2610e48a5cf8ead4",
        "status": "affected",
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      },
      {
        "version": "5.10.217",
        "lessThan": "5.10.259",
        "status": "affected",
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      },
      {
        "version": "5.15.159",
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      },
      {
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        "status": "affected",
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      },
      {
        "version": "6.6.31",
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        "status": "affected",
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      },
      {
        "version": "4.19.314",
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      },
      {
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        "versionType": "semver"
      },
      {
        "version": "6.8.10",
        "lessThan": "6.9",
        "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": "6.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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