{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix divide-by-zero in setup_geo() with zero far_copies\n\nsetup_geo() extracts near_copies (nc) and far_copies (fc) from the\nuser-provided layout parameter without checking for zero. When fc=0\nwith the \"improved\" far set layout selected, \u0027geo-\u003efar_set_size =\ndisks / fc\u0027 triggers a divide-by-zero.\n\nValidate nc and fc immediately after extraction, returning -1 if\neither is zero."
    }
  ],
  "id": "CVE-2026-46161",
  "lastModified": "2026-05-28T13:44:01.663",
  "metrics": {},
  "published": "2026-05-28T10:16:31.770",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-46161"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix divide-by-zero in setup_geo() with zero far_copies\n\nsetup_geo() extracts near_copies (nc) and far_copies (fc) from the\nuser-provided layout parameter without checking for zero. When fc=0\nwith the \"improved\" far set layout selected, \u0027geo-\u003efar_set_size =\ndisks / fc\u0027 triggers a divide-by-zero.\n\nValidate nc and fc immediately after extraction, returning -1 if\neither is zero.",
  "id": "GHSA-fx5x-q37w-xxvr",
  "modified": "2026-05-28T12:30:31Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46161"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

{
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    "category": "csaf_vex",
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        "url": "https://www.first.org/tlp/"
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    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
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      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
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      {
        "category": "self",
        "summary": "CVE-2026-46161 md/raid10: fix divide-by-zero in setup_geo() with zero far_copies - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46161.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "md/raid10: fix divide-by-zero in setup_geo() with zero far_copies",
    "tracking": {
      "current_release_date": "2026-05-29T01:04:38.000Z",
      "generator": {
        "date": "2026-05-29T07:23:45.836Z",
        "engine": {
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      },
      "id": "msrc_CVE-2026-46161",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-29T01:04:38.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
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      "status": "final",
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  "product_tree": {
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              {
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                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
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                }
              }
            ],
            "category": "product_name",
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        "category": "vendor",
        "name": "Microsoft"
      }
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-46161",
      "notes": [
        {
          "category": "general",
          "text": "Linux",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-46161 md/raid10: fix divide-by-zero in setup_geo() with zero far_copies - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-46161.json"
        }
      ],
      "title": "md/raid10: fix divide-by-zero in setup_geo() with zero far_copies"
    }
  ]
}