Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-07-25 09:14 – Updated: 2026-07-25 09:14

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

References

4 references

URL	Tags
https://git.kernel.org/stable/c/d1fc00ec02e9deb3f…
https://git.kernel.org/stable/c/fe59ae27d7346245f…
https://git.kernel.org/stable/c/44e5e4eb3a07bf3e1…
https://git.kernel.org/stable/c/4f8ef58c10bfe5f86…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < d1fc00ec02e9deb3f8d2bd59caf938c554fbc576 (git) Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < fe59ae27d7346245f5d8d97220f374e63efd28b5 (git) Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < 44e5e4eb3a07bf3e1d931dd9f96f3edcfa376605 (git) Affected: 1e33e1414bec54a4feafa9e67e2617031be0afe2 , < 4f8ef58c10bfe5f86a643c7c8331b37e69e3dae1 (git)
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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          "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."
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      "providerMetadata": {
        "dateUpdated": "2026-07-25T09:14:45.322Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "NFSD: Fix infinite loop in layout state revocation",
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    "datePublished": "2026-07-25T09:14:45.322Z",
    "dateReserved": "2026-07-19T15:36:31.794Z",
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  }
}

GHSA-GV69-M9QG-32PX

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

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.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64519"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:38Z",
    "severity": null
  },
  "details": "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": "GHSA-gv69-m9qg-32px",
  "modified": "2026-07-25T12:31:39Z",
  "published": "2026-07-25T12:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64519"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44e5e4eb3a07bf3e1d931dd9f96f3edcfa376605"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4f8ef58c10bfe5f86a643c7c8331b37e69e3dae1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1fc00ec02e9deb3f8d2bd59caf938c554fbc576"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe59ae27d7346245f5d8d97220f374e63efd28b5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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

GHSA-GV69-M9QG-32PX

Tags

Sightings

Nomenclature