Vulnerability-Lookup

GHSA-7JVC-CM4G-4HR3

Vulnerability from github – Published: 2026-01-13 18:31 – Updated: 2026-01-13 18:31

Details

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

fuse: missing copy_finish in fuse-over-io-uring argument copies

Fix a possible reference count leak of payload pages during fuse argument copies.

[Joanne: simplified error cleanup]

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68791"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T16:16:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: missing copy_finish in fuse-over-io-uring argument copies\n\nFix a possible reference count leak of payload pages during\nfuse argument copies.\n\n[Joanne: simplified error cleanup]",
  "id": "GHSA-7jvc-cm4g-4hr3",
  "modified": "2026-01-13T18:31:03Z",
  "published": "2026-01-13T18:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68791"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b79938863f436960eff209130f025c4bd3026bf8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68791 (GCVE-0-2025-68791)

Vulnerability from cvelistv5 – Published: 2026-01-13 15:29 – Updated: 2026-05-11 21:53

Title

fuse: missing copy_finish in fuse-over-io-uring argument copies

Summary

In the Linux kernel, the following vulnerability has been resolved: fuse: missing copy_finish in fuse-over-io-uring argument copies Fix a possible reference count leak of payload pages during fuse argument copies. [Joanne: simplified error cleanup]

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/b79938863f436960e…
https://git.kernel.org/stable/c/6e0d7f7f4a43ac886…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c090c8abae4b6b77a1bee116aa6c385456ebef96 , < b79938863f436960eff209130f025c4bd3026bf8 (git) Affected: c090c8abae4b6b77a1bee116aa6c385456ebef96 , < 6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.3 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/fuse/dev.c",
            "fs/fuse/dev_uring.c",
            "fs/fuse/fuse_dev_i.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b79938863f436960eff209130f025c4bd3026bf8",
              "status": "affected",
              "version": "c090c8abae4b6b77a1bee116aa6c385456ebef96",
              "versionType": "git"
            },
            {
              "lessThan": "6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd",
              "status": "affected",
              "version": "c090c8abae4b6b77a1bee116aa6c385456ebef96",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/fuse/dev.c",
            "fs/fuse/dev_uring.c",
            "fs/fuse/fuse_dev_i.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "lessThan": "6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.3",
                  "versionStartIncluding": "6.14",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.19",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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        }
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: missing copy_finish in fuse-over-io-uring argument copies\n\nFix a possible reference count leak of payload pages during\nfuse argument copies.\n\n[Joanne: simplified error cleanup]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:53:24.493Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b79938863f436960eff209130f025c4bd3026bf8"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e0d7f7f4a43ac8868e98c87ecf48805aa8c24dd"
        }
      ],
      "title": "fuse: missing copy_finish in fuse-over-io-uring argument copies",
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        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68791",
    "datePublished": "2026-01-13T15:29:03.553Z",
    "dateReserved": "2025-12-24T10:30:51.037Z",
    "dateUpdated": "2026-05-11T21:53:24.493Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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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GHSA-7JVC-CM4G-4HR3

CVE-2025-68791 (GCVE-0-2025-68791)

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