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CVE-2026-23053 (GCVE-0-2026-23053)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:04 – Updated: 2026-05-11 21:59
VLAI
Title
NFS: Fix a deadlock involving nfs_release_folio()
Summary
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfs_release_folio() Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfs_release_folio(). The latter cannot make progress due to state recovery being needed. It seems that the only safe thing to do here is to kick off a writeback of the folio, without waiting for completion, or else kicking off an asynchronous commit.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 96780ca55e3cbf4f150fd5a833a61492c9947b5b , < a4810f8beb0122f032f10735f98d257aa6064f4c (git)
Affected: 96780ca55e3cbf4f150fd5a833a61492c9947b5b , < 49d352bc263fe4a834233338bfaad31b3109addf (git)
Affected: 96780ca55e3cbf4f150fd5a833a61492c9947b5b , < 19b4d9ab5e77843eac0429c019470c02f8710b55 (git)
Affected: 96780ca55e3cbf4f150fd5a833a61492c9947b5b , < cce0be6eb4971456b703aaeafd571650d314bcca (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix a deadlock involving nfs_release_folio()\n\nWang Zhaolong reports a deadlock involving NFSv4.1 state recovery\nwaiting on kthreadd, which is attempting to reclaim memory by calling\nnfs_release_folio(). The latter cannot make progress due to state\nrecovery being needed.\n\nIt seems that the only safe thing to do here is to kick off a writeback\nof the folio, without waiting for completion, or else kicking off an\nasynchronous commit."
        }
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      "providerMetadata": {
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        "shortName": "Linux"
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      "title": "NFS: Fix a deadlock involving nfs_release_folio()",
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    "datePublished": "2026-02-04T16:04:22.574Z",
    "dateReserved": "2026-01-13T15:37:45.950Z",
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    "state": "PUBLISHED"
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                "programFiles": [
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        "cveTags": [],
        "descriptions": [
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix a deadlock involving nfs_release_folio()\n\nWang Zhaolong reports a deadlock involving NFSv4.1 state recovery\nwaiting on kthreadd, which is attempting to reclaim memory by calling\nnfs_release_folio(). The latter cannot make progress due to state\nrecovery being needed.\n\nIt seems that the only safe thing to do here is to kick off a writeback\nof the folio, without waiting for completion, or else kicking off an\nasynchronous commit."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nNFS: Correcci\u00f3n de un interbloqueo que involucra a nfs_release_folio()\n\nWang Zhaolong informa de un interbloqueo que involucra la recuperaci\u00f3n de estado de NFSv4.1 esperando en kthreadd, que est\u00e1 intentando reclamar memoria llamando a nfs_release_folio(). Este \u00faltimo no puede avanzar debido a que se necesita la recuperaci\u00f3n de estado.\n\nParece que lo \u00fanico seguro que se puede hacer aqu\u00ed es iniciar una escritura diferida del folio, sin esperar a que se complete, o bien iniciar una confirmaci\u00f3n as\u00edncrona."
          }
        ],
        "id": "CVE-2026-23053",
        "lastModified": "2026-06-17T10:20:46.743",
        "metrics": {},
        "published": "2026-02-04T17:16:15.970",
        "references": [
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "cve": "CVE-2026-23053",
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      "product_status:known_affected": "198",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in NFSv4.1 client due to deadlock during memory reclaim",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23053.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.