NFSv4: Fix incorrect argument passed to nfs4_delete_lease() in nfs4_add_lease()

{
  "id": "f3e8f86013c3e38c1e4365cd0055e99167694b27dadf34a54c92929370930460",
  "url": "https://osv.dev/vulnerability/CVE-2026-90148",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "NFSv4: Fix incorrect argument passed to nfs4_delete_lease() in nfs4_add_lease()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix incorrect argument passed to nfs4_delete_lease() in nfs4_add_lease() When nfs4_add_lease() races with a delegation return, it calls nfs4_delete_lease() to clean up. Previously, it passed priv, which can legitimately be NULL. Passing a NULL priv eventually leads to a NULL pointer dereference in generic_setlease().",
    "evidence": "osv:CVE-2026-90148",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.191",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.160",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.52",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-90148",
      "aliases": [
        "CVE-2026-90148"
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
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                  "fixed": "e25e5b4a764638ec9e2dc6c9affe080c922ea1f2"
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                {
                  "fixed": "ff7244faa13b23e9acfad9df0438f0b44b338f62"
                },
                {
                  "fixed": "d148a652d52fd6aee96daf798922eb800ebb3018"
                },
                {
                  "fixed": "d179ff22cd8514f966966fd9ad425dcbb98e1ada"
                },
                {
                  "fixed": "468e458ffde907ba19acd2102ca1fbb8f6fbede2"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90148.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                {
                  "introduced": "5.14.0"
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            {
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                  "introduced": "6.2.0"
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            {
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                  "introduced": "6.7.0"
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                  "introduced": "6.19.0"
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                  "fixed": "7.2.6"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90148.json"
          }
        }
      ],
      "modified": "2026-11-01T02:30:44.711923492Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/468e458ffde907ba19acd2102ca1fbb8f6fbede2",
        "https://git.kernel.org/stable/c/c951b876cccd8a4e21fe8b9712894f6a2513ddbc",
        "https://git.kernel.org/stable/c/d148a652d52fd6aee96daf798922eb800ebb3018",
        "https://git.kernel.org/stable/c/d179ff22cd8514f966966fd9ad425dcbb98e1ada",
        "https://git.kernel.org/stable/c/e25e5b4a764638ec9e2dc6c9affe080c922ea1f2",
        "https://git.kernel.org/stable/c/ff7244faa13b23e9acfad9df0438f0b44b338f62",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90148.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-90148",
        "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/2026/90xxx/CVE-2026-90148.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90148",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 521425,
  "published_at": "2026-09-17T16:06:42.992+00:00"
}