Vulnerability-Lookup

GHSA-7XF4-WR6X-3R95

Vulnerability from github – Published: 2024-05-17 12:31 – Updated: 2025-09-26 18:31

Details

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

net: mctp: take ownership of skb in mctp_local_output

Currently, mctp_local_output only takes ownership of skb on success, and we may leak an skb if mctp_local_output fails in specific states; the skb ownership isn't transferred until the actual output routing occurs.

Instead, make mctp_local_output free the skb on all error paths up to the route action, so it always consumes the passed skb.

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-2024-27418"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-17T12:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mctp: take ownership of skb in mctp_local_output\n\nCurrently, mctp_local_output only takes ownership of skb on success, and\nwe may leak an skb if mctp_local_output fails in specific states; the\nskb ownership isn\u0027t transferred until the actual output routing occurs.\n\nInstead, make mctp_local_output free the skb on all error paths up to\nthe route action, so it always consumes the passed skb.",
  "id": "GHSA-7xf4-wr6x-3r95",
  "modified": "2025-09-26T18:31:17Z",
  "published": "2024-05-17T12:31:00Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27418"
    },
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      "url": "https://git.kernel.org/stable/c/3773d65ae5154ed7df404b050fd7387a36ab5ef3"
    },
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      "url": "https://git.kernel.org/stable/c/a3c8fa54e904b0ddb52a08cc2d8ac239054f61fd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a639441c880ac479495e5ab37e3c29f21ae5771b"
    },
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}

CVE-2024-27418 (GCVE-0-2024-27418)

Vulnerability from cvelistv5 – Published: 2024-05-17 11:51 – Updated: 2026-05-11 20:10

Title

net: mctp: take ownership of skb in mctp_local_output

Summary

In the Linux kernel, the following vulnerability has been resolved: net: mctp: take ownership of skb in mctp_local_output Currently, mctp_local_output only takes ownership of skb on success, and we may leak an skb if mctp_local_output fails in specific states; the skb ownership isn't transferred until the actual output routing occurs. Instead, make mctp_local_output free the skb on all error paths up to the route action, so it always consumes the passed skb.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:43 UTC

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/a3c8fa54e904b0ddb…
https://git.kernel.org/stable/c/cbebc55ceacef1fc0…
https://git.kernel.org/stable/c/a639441c880ac4794…
https://git.kernel.org/stable/c/3773d65ae5154ed7d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 833ef3b91de692ef33b800bca6b1569c39dece74 , < a3c8fa54e904b0ddb52a08cc2d8ac239054f61fd (git) Affected: 833ef3b91de692ef33b800bca6b1569c39dece74 , < cbebc55ceacef1fc0651e80e0103cc184552fc68 (git) Affected: 833ef3b91de692ef33b800bca6b1569c39dece74 , < a639441c880ac479495e5ab37e3c29f21ae5771b (git) Affected: 833ef3b91de692ef33b800bca6b1569c39dece74 , < 3773d65ae5154ed7df404b050fd7387a36ab5ef3 (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 6.1.81 , ≤ 6.1.* (semver) Unaffected: 6.6.21 , ≤ 6.6.* (semver) Unaffected: 6.7.9 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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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.

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-7XF4-WR6X-3R95

CVE-2024-27418 (GCVE-0-2024-27418)

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