libceph: prevent potential out-of-bounds reads in handle_auth_done()

{
  "id": "4c72d46bbb3a5c25cb671b6139d2e3a092493b8e5fea644c2e8d4c9bd3ced4c8",
  "url": "https://osv.dev/vulnerability/CVE-2026-22984",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "libceph: prevent potential out-of-bounds reads in handle_auth_done()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in handle_auth_done() Perform an explicit bounds check on payload_len to avoid a possible out-of-bounds access in the callout. [ idryomov: changelog ]",
    "evidence": "osv:CVE-2026-22984",
    "products": [
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    "severity": "critical",
    "structured": {
      "id": "CVE-2026-22984",
      "aliases": [
        "CVE-2026-22984"
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
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      ],
      "modified": "2026-10-28T02:30:21.393824013Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/194cfe2af4d2a1de599d39dad636b47c2f6c2c96",
        "https://git.kernel.org/stable/c/2802ef3380fa8c4a08cda51ec1f085b1a712e9e2",
        "https://git.kernel.org/stable/c/2d653bb63d598ae4b096dd678744bdcc34ee89e8",
        "https://git.kernel.org/stable/c/79fe3511db416d2f2edcfd93569807cb02736e5e",
        "https://git.kernel.org/stable/c/818156caffbf55cb4d368f9c3cac64e458fb49c9",
        "https://git.kernel.org/stable/c/ef208ea331ef688729f64089b895ed1b49e842e3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22984.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-22984",
        "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/2026/22xxx/CVE-2026-22984.json"
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    "related_cves": [
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        "value": "CVE-2026-22984",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 487773,
  "published_at": "2026-01-23T15:24:06.245+00:00"
}