btrfs: fix anon_dev leak in create_subvol()_MS:CVE-2022-49469

{
    "lastseen": "2025-10-24T06:55:31",
    "description": "",
    "published": "2025-10-24T01:01:38",
    "modified": "2025-10-24T01:01:38",
    "type": "mscve",
    "title": "btrfs: fix anon_dev leak in create_subvol()",
    "source": "",
    "references": "",
    "id": "MS:CVE-2022-49469",
    "bulletinFamily": "microsoft",
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        "version": "3.1"
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    "href": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-49469",
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