Vulnerability-Lookup

GHSA-CM82-QH9H-XPJ6

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:

xfs: fix a UAF problem in xattr repair

The xchk_setup_xattr_buf function can allocate a new value buffer, which means that any reference to ab->value before the call could become a dangling pointer. Fix this by moving an assignment to after the buffer setup.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68784"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-13T16:15:58Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix a UAF problem in xattr repair\n\nThe xchk_setup_xattr_buf function can allocate a new value buffer, which\nmeans that any reference to ab-\u003evalue before the call could become a\ndangling pointer.  Fix this by moving an assignment to after the buffer\nsetup.",
  "id": "GHSA-cm82-qh9h-xpj6",
  "modified": "2026-01-13T18:31:03Z",
  "published": "2026-01-13T18:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68784"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e2d3aa19c7962b9474b22893160cb460494c45f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5990fd756943836978ad184aac980e2b36ab7e01"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d29ed9ff972afe17c215cab171761d7a15d7063f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68784 (GCVE-0-2025-68784)

Vulnerability from cvelistv5 – Published: 2026-01-13 15:28 – Updated: 2026-05-11 21:53

Title

xfs: fix a UAF problem in xattr repair

Summary

In the Linux kernel, the following vulnerability has been resolved: xfs: fix a UAF problem in xattr repair The xchk_setup_xattr_buf function can allocate a new value buffer, which means that any reference to ab->value before the call could become a dangling pointer. Fix this by moving an assignment to after the buffer setup.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/1e2d3aa19c7962b94…
https://git.kernel.org/stable/c/d29ed9ff972afe17c…
https://git.kernel.org/stable/c/5990fd75694383697…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e47dcf113ae348678143cc935a1183059c02c9ad , < 1e2d3aa19c7962b9474b22893160cb460494c45f (git) Affected: e47dcf113ae348678143cc935a1183059c02c9ad , < d29ed9ff972afe17c215cab171761d7a15d7063f (git) Affected: e47dcf113ae348678143cc935a1183059c02c9ad , < 5990fd756943836978ad184aac980e2b36ab7e01 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.64 , ≤ 6.12.* (semver) Unaffected: 6.18.3 , ≤ 6.18.* (semver) Unaffected: 6.19 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/scrub/attr_repair.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1e2d3aa19c7962b9474b22893160cb460494c45f",
              "status": "affected",
              "version": "e47dcf113ae348678143cc935a1183059c02c9ad",
              "versionType": "git"
            },
            {
              "lessThan": "d29ed9ff972afe17c215cab171761d7a15d7063f",
              "status": "affected",
              "version": "e47dcf113ae348678143cc935a1183059c02c9ad",
              "versionType": "git"
            },
            {
              "lessThan": "5990fd756943836978ad184aac980e2b36ab7e01",
              "status": "affected",
              "version": "e47dcf113ae348678143cc935a1183059c02c9ad",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/scrub/attr_repair.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.64",
              "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": "6.12.64",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.3",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix a UAF problem in xattr repair\n\nThe xchk_setup_xattr_buf function can allocate a new value buffer, which\nmeans that any reference to ab-\u003evalue before the call could become a\ndangling pointer.  Fix this by moving an assignment to after the buffer\nsetup."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:53:17.447Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1e2d3aa19c7962b9474b22893160cb460494c45f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d29ed9ff972afe17c215cab171761d7a15d7063f"
        },
        {
          "url": "https://git.kernel.org/stable/c/5990fd756943836978ad184aac980e2b36ab7e01"
        }
      ],
      "title": "xfs: fix a UAF problem in xattr repair",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68784",
    "datePublished": "2026-01-13T15:28:58.255Z",
    "dateReserved": "2025-12-24T10:30:51.036Z",
    "dateUpdated": "2026-05-11T21:53:17.447Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.
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GHSA-CM82-QH9H-XPJ6

CVE-2025-68784 (GCVE-0-2025-68784)

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