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GHSA-RR37-5J55-39MH

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

netfs: clear PG_private_2 on copy-to-cache append failure

netfs_pgpriv2_copy_to_cache() marks the folio with PG_private_2 before netfs_pgpriv2_copy_folio() appends it to the copy-to-cache rolling buffer.

If the append fails, the folio is not queued for cache writeback, so the PG_private_2 state and its reference must be released immediately.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80898"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T18:17:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: clear PG_private_2 on copy-to-cache append failure\n\nnetfs_pgpriv2_copy_to_cache() marks the folio with PG_private_2 before\nnetfs_pgpriv2_copy_folio() appends it to the copy-to-cache rolling\nbuffer.\n\nIf the append fails, the folio is not queued for cache writeback, so\nthe PG_private_2 state and its reference must be released immediately.",
  "id": "GHSA-rr37-5j55-39mh",
  "modified": "2026-09-04T18:31:33Z",
  "published": "2026-09-04T18:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80898"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/614b7f4bfcf665a751ae89ff9ae336a1b2d5af4e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/627826ef4208042b0470d1a3fdb729ce35471a0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a81fc9266e1c5fef9ccf675a9b44b2f4ab464923"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80898 (GCVE-0-2026-80898)

Vulnerability from cvelistv5 – Published: 2026-09-04 17:11 – Updated: 2026-09-04 17:11

Title

netfs: clear PG_private_2 on copy-to-cache append failure

Summary

In the Linux kernel, the following vulnerability has been resolved: netfs: clear PG_private_2 on copy-to-cache append failure netfs_pgpriv2_copy_to_cache() marks the folio with PG_private_2 before netfs_pgpriv2_copy_folio() appends it to the copy-to-cache rolling buffer. If the append fails, the folio is not queued for cache writeback, so the PG_private_2 state and its reference must be released immediately.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/627826ef4208042b0…
https://git.kernel.org/stable/c/614b7f4bfcf665a75…
https://git.kernel.org/stable/c/a81fc9266e1c5fef9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e2d46f2ec332533816417b60933954173f602121 , < 627826ef4208042b0470d1a3fdb729ce35471a0d (git) Affected: e2d46f2ec332533816417b60933954173f602121 , < 614b7f4bfcf665a751ae89ff9ae336a1b2d5af4e (git) Affected: e2d46f2ec332533816417b60933954173f602121 , < a81fc9266e1c5fef9ccf675a9b44b2f4ab464923 (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.44 , ≤ 6.18.* (semver) Unaffected: 7.1.8 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/read_pgpriv2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "git"
            },
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              "version": "e2d46f2ec332533816417b60933954173f602121",
              "versionType": "git"
            },
            {
              "lessThan": "a81fc9266e1c5fef9ccf675a9b44b2f4ab464923",
              "status": "affected",
              "version": "e2d46f2ec332533816417b60933954173f602121",
              "versionType": "git"
            }
          ]
        },
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/read_pgpriv2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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            },
            {
              "lessThanOrEqual": "7.1.*",
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              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.44",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
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                },
                {
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                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: clear PG_private_2 on copy-to-cache append failure\n\nnetfs_pgpriv2_copy_to_cache() marks the folio with PG_private_2 before\nnetfs_pgpriv2_copy_folio() appends it to the copy-to-cache rolling\nbuffer.\n\nIf the append fails, the folio is not queued for cache writeback, so\nthe PG_private_2 state and its reference must be released immediately."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T17:11:13.337Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/a81fc9266e1c5fef9ccf675a9b44b2f4ab464923"
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      ],
      "title": "netfs: clear PG_private_2 on copy-to-cache append failure",
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        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80898",
    "datePublished": "2026-09-04T17:11:13.337Z",
    "dateReserved": "2026-08-26T14:34:25.800Z",
    "dateUpdated": "2026-09-04T17:11:13.337Z",
    "state": "PUBLISHED"
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}

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-RR37-5J55-39MH

CVE-2026-80898 (GCVE-0-2026-80898)

Tags

Sightings

Nomenclature