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GHSA-83MX-7RQ3-8XWJ

Vulnerability from github – Published: 2024-12-27 15:31 – Updated: 2025-10-07 21:31

Details

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

ceph: pass cred pointer to ceph_mds_auth_match()

This eliminates a redundant get_current_cred() call, because ceph_mds_check_access() has already obtained this pointer.

As a side effect, this also fixes a reference leak in ceph_mds_auth_match(): by omitting the get_current_cred() call, no additional cred reference is taken.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
    "CVE-2024-56564"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T15:15:15Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: pass cred pointer to ceph_mds_auth_match()\n\nThis eliminates a redundant get_current_cred() call, because\nceph_mds_check_access() has already obtained this pointer.\n\nAs a side effect, this also fixes a reference leak in\nceph_mds_auth_match(): by omitting the get_current_cred() call, no\nadditional cred reference is taken.",
  "id": "GHSA-83mx-7rq3-8xwj",
  "modified": "2025-10-07T21:31:03Z",
  "published": "2024-12-27T15:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56564"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/23426309a4064b25a961e1c72961d8bfc7c8c990"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffa6ba7bdb7f07f49c9e9150b0176df066520f62"
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  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-56564 (GCVE-0-2024-56564)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:23 – Updated: 2026-05-11 20:54

Title

ceph: pass cred pointer to ceph_mds_auth_match()

Summary

In the Linux kernel, the following vulnerability has been resolved: ceph: pass cred pointer to ceph_mds_auth_match() This eliminates a redundant get_current_cred() call, because ceph_mds_check_access() has already obtained this pointer. As a side effect, this also fixes a reference leak in ceph_mds_auth_match(): by omitting the get_current_cred() call, no additional cred reference is taken.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/ffa6ba7bdb7f07f49…
https://git.kernel.org/stable/c/23426309a4064b25a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 596afb0b8933ba6ed7227adcc538db26feb25c74 , < ffa6ba7bdb7f07f49c9e9150b0176df066520f62 (git) Affected: 596afb0b8933ba6ed7227adcc538db26feb25c74 , < 23426309a4064b25a961e1c72961d8bfc7c8c990 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.4 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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JSON

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        {
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          "programFiles": [
            "fs/ceph/mds_client.c"
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          "vendor": "Linux",
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              "lessThanOrEqual": "*",
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              "versionType": "original_commit_for_fix"
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                },
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:54:52.602Z",
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    "datePublished": "2024-12-27T14:23:08.563Z",
    "dateReserved": "2024-12-27T14:03:05.995Z",
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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