Vulnerability-Lookup

GHSA-5V6R-J86Q-GWMH

Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2025-11-03 21:33

Details

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

can: ctucanfd: handle skb allocation failure

If skb allocation fails, the pointer to struct can_frame is NULL. This is actually handled everywhere inside ctucan_err_interrupt() except for the only place.

Add the missed NULL check.

Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

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-2025-21775"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T03:15:18Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: ctucanfd: handle skb allocation failure\n\nIf skb allocation fails, the pointer to struct can_frame is NULL. This\nis actually handled everywhere inside ctucan_err_interrupt() except for\nthe only place.\n\nAdd the missed NULL check.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE static\nanalysis tool.",
  "id": "GHSA-5v6r-j86q-gwmh",
  "modified": "2025-11-03T21:33:00Z",
  "published": "2025-02-27T03:34:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21775"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84b9ac59978a6a4e0812d1c938fad97306272cef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bd24927e3eeb85642c7baa3b28be8bea6c2a078"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0e592dd46a0a952b41c3bf6c963afdd6a42b526"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e505b83b9ee6aa0ae2f4395f573a66579ae403fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7e2e2318b1f085044126ba553a4e619842fc36d"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-21775 (GCVE-0-2025-21775)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-11 21:06

Title

can: ctucanfd: handle skb allocation failure

Summary

In the Linux kernel, the following vulnerability has been resolved: can: ctucanfd: handle skb allocation failure If skb allocation fails, the pointer to struct can_frame is NULL. This is actually handled everywhere inside ctucan_err_interrupt() except for the only place. Add the missed NULL check. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:30 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root Scorecard

References

6 references

URL	Tags
https://git.kernel.org/stable/c/84b9ac59978a6a4e0…
https://git.kernel.org/stable/c/e505b83b9ee6aa0ae…
https://git.kernel.org/stable/c/b0e592dd46a0a952b…
https://git.kernel.org/stable/c/e7e2e2318b1f08504…
https://git.kernel.org/stable/c/9bd24927e3eeb8564…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 , < 84b9ac59978a6a4e0812d1c938fad97306272cef (git) Affected: 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 , < e505b83b9ee6aa0ae2f4395f573a66579ae403fb (git) Affected: 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 , < b0e592dd46a0a952b41c3bf6c963afdd6a42b526 (git) Affected: 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 , < e7e2e2318b1f085044126ba553a4e619842fc36d (git) Affected: 2dcb8e8782d8e4c38903bf37b1a24d3ffd193da7 , < 9bd24927e3eeb85642c7baa3b28be8bea6c2a078 (git)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix)

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JSON

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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
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              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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            }
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        "references": [
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-5V6R-J86Q-GWMH

CVE-2025-21775 (GCVE-0-2025-21775)

Tags

Sightings

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