fs: drop peer group ids under namespace lock

{
  "id": "65160127ebbb46df4a74215ef93c63af201ff9d50606d54cf2acb8dff70dae29",
  "url": "https://osv.dev/vulnerability/CVE-2023-54128",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "fs: drop peer group ids under namespace lock",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: fs: drop peer group ids under namespace lock When cleaning up peer group ids in the failure path we need to make sure to hold on to the namespace lock. Otherwise another thread might just turn the mount from a shared into a non-shared mount concurrently.",
    "evidence": "osv:CVE-2023-54128",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.15.107",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.24",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.2.11",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-54128",
      "aliases": [
        "CVE-2023-54128"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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                  "fixed": "cb2239c198ad9fbd5aced22cf93e45562da781eb"
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          "database_specific": {
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          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.12.0"
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "5.16.0"
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                {
                  "fixed": "6.1.24"
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              ]
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.2.11"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54128.json"
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        }
      ],
      "modified": "2026-10-28T02:30:42.669651764Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0af8fae81d8b7f1beddc17c5d4cfa43235134648",
        "https://git.kernel.org/stable/c/65c324d3f35c05e37afec39ac80743583fdcc96c",
        "https://git.kernel.org/stable/c/cb2239c198ad9fbd5aced22cf93e45562da781eb",
        "https://git.kernel.org/stable/c/ddca03d97daa7b07b60c52e3d3060762732c6666",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54128.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54128",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54128.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-54128",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510204,
  "published_at": "2025-12-24T13:06:46.056+00:00"
}