Vulnerability-Lookup

GHSA-8866-WMP5-Q7XV

Vulnerability from github – Published: 2026-01-05 12:30 – Updated: 2026-01-05 12:30

Details

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

irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

If irq_domain_translate_twocell() sets "hwirq" to >= MCHP_EIC_NIRQ (2) then it results in an out of bounds access.

The code checks for invalid values, but doesn't set the error code. Return -EINVAL in that case, instead of returning success.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68766"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-05T10:15:57Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()\n\nIf irq_domain_translate_twocell() sets \"hwirq\" to \u003e= MCHP_EIC_NIRQ (2) then\nit results in an out of bounds access.\n\nThe code checks for invalid values, but doesn\u0027t set the error code.  Return\n-EINVAL in that case, instead of returning success.",
  "id": "GHSA-8866-wmp5-q7xv",
  "modified": "2026-01-05T12:30:29Z",
  "published": "2026-01-05T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68766"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09efe7cfbf919c4d763bc425473fcfee0dc98356"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3873afcb57614c1aaa5b6715554d6d1c22cac95a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7dbc0d40d8347bd9de55c904f59ea44bcc8dedb7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/efd65e2e2fd96f7aaa5cb07d79bbbfcfc80aa552"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68766 (GCVE-0-2025-68766)

Vulnerability from cvelistv5 – Published: 2026-01-05 09:44 – Updated: 2026-01-05 09:44

Title

irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

Summary

In the Linux kernel, the following vulnerability has been resolved: irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc() If irq_domain_translate_twocell() sets "hwirq" to >= MCHP_EIC_NIRQ (2) then it results in an out of bounds access. The code checks for invalid values, but doesn't set the error code. Return -EINVAL in that case, instead of returning success.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/3873afcb57614c1aa…
	https://git.kernel.org/stable/c/09efe7cfbf919c4d7…
	https://git.kernel.org/stable/c/efd65e2e2fd96f7aa…
	https://git.kernel.org/stable/c/7dbc0d40d8347bd9d…

Impacted products

Vendor

Product

Version

Linux

Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < 3873afcb57614c1aaa5b6715554d6d1c22cac95a (git)
Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < 09efe7cfbf919c4d763bc425473fcfee0dc98356 (git)
Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < efd65e2e2fd96f7aaa5cb07d79bbbfcfc80aa552 (git)
Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < 7dbc0d40d8347bd9de55c904f59ea44bcc8dedb7 (git)

Linux

Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.12.63 , ≤ 6.12.* (semver)
Unaffected: 6.17.13 , ≤ 6.17.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-mchp-eic.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3873afcb57614c1aaa5b6715554d6d1c22cac95a",
              "status": "affected",
              "version": "00fa3461c86dd289b441d4d5a6bb236064bd207b",
              "versionType": "git"
            },
            {
              "lessThan": "09efe7cfbf919c4d763bc425473fcfee0dc98356",
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              "version": "00fa3461c86dd289b441d4d5a6bb236064bd207b",
              "versionType": "git"
            },
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            }
          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
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            },
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              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc1",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.16",
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                },
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()\n\nIf irq_domain_translate_twocell() sets \"hwirq\" to \u003e= MCHP_EIC_NIRQ (2) then\nit results in an out of bounds access.\n\nThe code checks for invalid values, but doesn\u0027t set the error code.  Return\n-EINVAL in that case, instead of returning success."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T09:44:13.935Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/7dbc0d40d8347bd9de55c904f59ea44bcc8dedb7"
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      "title": "irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()",
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  "cveMetadata": {
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    "cveId": "CVE-2025-68766",
    "datePublished": "2026-01-05T09:44:13.935Z",
    "dateReserved": "2025-12-24T10:30:51.034Z",
    "dateUpdated": "2026-01-05T09:44:13.935Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-8866-WMP5-Q7XV

CVE-2025-68766 (GCVE-0-2025-68766)

Tags

Sightings

Nomenclature