CVE-2023-53297 (GCVE-0-2023-53297)
Vulnerability from cvelistv5
Published
2025-09-16 08:11
Modified
2025-09-16 08:11
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/l2cap_core.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "version": "4.19.284",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.244",
              "versionType": "semver"
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              "lessThanOrEqual": "5.10.*",
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              "versionType": "semver"
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              "versionType": "semver"
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              "version": "6.1.30",
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            {
              "lessThanOrEqual": "6.3.*",
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              "version": "6.3.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T08:11:29.283Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2"
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        },
        {
          "url": "https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce"
        }
      ],
      "title": "Bluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53297",
    "datePublished": "2025-09-16T08:11:29.283Z",
    "dateReserved": "2025-09-16T08:09:37.993Z",
    "dateUpdated": "2025-09-16T08:11:29.283Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53297\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T08:15:39.053\",\"lastModified\":\"2025-09-16T12:49:16.060\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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