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

Vulnerability from cvelistv5 – Published: 2026-01-05 09:44 – Updated: 2026-01-05 09:44
VLAI?
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
References
Impacted products
Vendor Product Version
Linux Linux Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < 3873afcb57614c1aaa5b6715554d6d1c22cac95a (git)
Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < 09efe7cfbf919c4d763bc425473fcfee0dc98356 (git)
Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < efd65e2e2fd96f7aaa5cb07d79bbbfcfc80aa552 (git)
Affected: 00fa3461c86dd289b441d4d5a6bb236064bd207b , < 7dbc0d40d8347bd9de55c904f59ea44bcc8dedb7 (git)
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    Linux 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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{
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          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-mchp-eic.c"
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              "operator": "OR"
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      "descriptions": [
        {
          "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."
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      "providerMetadata": {
        "dateUpdated": "2026-01-05T09:44:13.935Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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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"
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
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  • 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.
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