CVE-2026-64519 (GCVE-0-2026-64519)

Vulnerability from cvelistv5 – Published: 2026-07-25 09:14 – Updated: 2026-07-25 09:14
VLAI
Title
NFSD: Fix infinite loop in layout state revocation
Summary
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix infinite loop in layout state revocation find_one_sb_stid() skips stids whose sc_status is non-zero, but the SC_TYPE_LAYOUT case in nfsd4_revoke_states() never sets sc_status before calling nfsd4_close_layout(). The retry loop therefore finds the same layout stid on every iteration, hanging the revoker indefinitely.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < d1fc00ec02e9deb3f8d2bd59caf938c554fbc576 (git)
Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < fe59ae27d7346245f5d8d97220f374e63efd28b5 (git)
Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < 44e5e4eb3a07bf3e1d931dd9f96f3edcfa376605 (git)
Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < 4f8ef58c10bfe5f86a643c7c8331b37e69e3dae1 (git)
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Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "fs/nfsd/nfs4state.c"
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              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Fix infinite loop in layout state revocation\n\nfind_one_sb_stid() skips stids whose sc_status is non-zero, but the\nSC_TYPE_LAYOUT case in nfsd4_revoke_states() never sets sc_status\nbefore calling nfsd4_close_layout(). The retry loop therefore finds\nthe same layout stid on every iteration, hanging the revoker\nindefinitely."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T09:14:45.322Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "NFSD: Fix infinite loop in layout state revocation",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64519",
    "datePublished": "2026-07-25T09:14:45.322Z",
    "dateReserved": "2026-07-19T15:36:31.794Z",
    "dateUpdated": "2026-07-25T09:14:45.322Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Fix infinite loop in layout state revocation\n\nfind_one_sb_stid() skips stids whose sc_status is non-zero, but the\nSC_TYPE_LAYOUT case in nfsd4_revoke_states() never sets sc_status\nbefore calling nfsd4_close_layout(). The retry loop therefore finds\nthe same layout stid on every iteration, hanging the revoker\nindefinitely."
          }
        ],
        "id": "CVE-2026-64519",
        "lastModified": "2026-07-25T10:17:38.187",
        "metrics": {},
        "published": "2026-07-25T10:17:38.187",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "product_status:known_affected": "198",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: NFSD: Fix infinite loop in layout state revocation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64519.json",
      "version": "3"
    }
  }
}



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