ghsa-r9g9-q5xh-mm5x
Vulnerability from github
Published
2025-09-16 15:32
Modified
2025-09-16 15:32
Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp

conn->chan_lock isn't acquired before l2cap_get_chan_by_scid, if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance' is triggered.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53297"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-16T08:15:39Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp\n\nconn-\u003echan_lock isn\u0027t acquired before l2cap_get_chan_by_scid,\nif l2cap_get_chan_by_scid returns NULL, then \u0027bad unlock balance\u0027\nis triggered.",
  "id": "GHSA-r9g9-q5xh-mm5x",
  "modified": "2025-09-16T15:32:33Z",
  "published": "2025-09-16T15:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53297"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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