nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease

{
  "id": "0722d3a375666b0a40368061cb2fae4f26809becfcc9c99d761d7ce77caa5610",
  "url": "https://osv.dev/vulnerability/CVE-2024-46690",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease It is not safe to dereference fl->c.flc_owner without first confirming fl->fl_lmops is the expected manager. nfsd4_deleg_getattr_conflict() tests fl_lmops but largely ignores the result and assumes that flc_owner is an nfs4_delegation anyway. This is wrong. With this patch we restore the \"!= &nfsd_lease_mng_ops\" case to behave as it did before the change mentioned below. This is the same as the current code, but without any reference to a possible delegation.",
    "evidence": "osv:CVE-2024-46690",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.10.8",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
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    "severity": "critical",
    "structured": {
      "id": "CVE-2024-46690",
      "aliases": [
        "CVE-2024-46690"
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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"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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                {
                  "fixed": "40927f3d0972bf86357a32a5749be71a551241b6"
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          "database_specific": {
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.9.0"
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                  "fixed": "6.10.8"
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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-2024-46690.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.027976674Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1b46a871e980e3daa16fd5e77539966492e8910a",
        "https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46690.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-46690",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
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    "related_cves": [
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        "value": "CVE-2024-46690",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 498845,
  "published_at": "2024-09-13T05:29:20.368+00:00"
}