Vulnerability-Lookup

GHSA-Q656-WCRG-WWX4

Vulnerability from github – Published: 2025-03-17 21:30 – Updated: 2025-03-17 21:30

Details

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

clk: visconti: prevent array overflow in visconti_clk_register_gates()

This code was using -1 to represent that there was no reset function. Unfortunately, the -1 was stored in u8 so the if (clks[i].rs_id >= 0) condition was always true. This lead to an out of bounds access in visconti_clk_register_gates().

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:55Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: visconti: prevent array overflow in visconti_clk_register_gates()\n\nThis code was using -1 to represent that there was no reset function.\nUnfortunately, the -1 was stored in u8 so the if (clks[i].rs_id \u003e= 0)\ncondition was always true.  This lead to an out of bounds access in\nvisconti_clk_register_gates().",
  "id": "GHSA-q656-wcrg-wwx4",
  "modified": "2025-03-17T21:30:32Z",
  "published": "2025-03-17T21:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49186"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2723543c1d60278d5aef1c4ad732dbad24b84a81"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5601e0720ce1a3ad895f94a5838530edde01ed3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49186 (GCVE-0-2022-49186)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-05-11 18:54

Title

clk: visconti: prevent array overflow in visconti_clk_register_gates()

Summary

In the Linux kernel, the following vulnerability has been resolved: clk: visconti: prevent array overflow in visconti_clk_register_gates() This code was using -1 to represent that there was no reset function. Unfortunately, the -1 was stored in u8 so the if (clks[i].rs_id >= 0) condition was always true. This lead to an out of bounds access in visconti_clk_register_gates().

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:47 UTC

CWE

CWE-129 - Improper Validation of Array Index

Assigner

Linux mitre root Scorecard

References

2 references

URL	Tags
https://git.kernel.org/stable/c/2723543c1d60278d5…
https://git.kernel.org/stable/c/c5601e0720ce1a3ad…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa , < 2723543c1d60278d5aef1c4ad732dbad24b84a81 (git) Affected: b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa , < c5601e0720ce1a3ad895f94a5838530edde01ed3 (git)
Linux	Linux	Affected: 5.17 Unaffected: 0 , < 5.17 (semver) Unaffected: 5.17.2 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49186",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:47:22.612139Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-129",
                "description": "CWE-129 Improper Validation of Array Index",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:56:59.343Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/visconti/clkc-tmpv770x.c",
            "drivers/clk/visconti/clkc.c",
            "drivers/clk/visconti/clkc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2723543c1d60278d5aef1c4ad732dbad24b84a81",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            },
            {
              "lessThan": "c5601e0720ce1a3ad895f94a5838530edde01ed3",
              "status": "affected",
              "version": "b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/clk/visconti/clkc-tmpv770x.c",
            "drivers/clk/visconti/clkc.c",
            "drivers/clk/visconti/clkc.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.2",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: visconti: prevent array overflow in visconti_clk_register_gates()\n\nThis code was using -1 to represent that there was no reset function.\nUnfortunately, the -1 was stored in u8 so the if (clks[i].rs_id \u003e= 0)\ncondition was always true.  This lead to an out of bounds access in\nvisconti_clk_register_gates()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:54:46.985Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/2723543c1d60278d5aef1c4ad732dbad24b84a81"
        },
        {
          "url": "https://git.kernel.org/stable/c/c5601e0720ce1a3ad895f94a5838530edde01ed3"
        }
      ],
      "title": "clk: visconti: prevent array overflow in visconti_clk_register_gates()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49186",
    "datePublished": "2025-02-26T01:55:35.590Z",
    "dateReserved": "2025-02-26T01:49:39.285Z",
    "dateUpdated": "2026-05-11T18:54:46.985Z",
    "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-Q656-WCRG-WWX4

CVE-2022-49186 (GCVE-0-2022-49186)

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