{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-89506",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89506",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:43:53.350Z",
    "updatedAt": "2026-10-19T08:47:57.692Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "RDMA/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR\n\nThe original commit missed that three drivers (mthca, irdma, siw) have UHW\ndata associated with reg_mr that cannot be passed through the ioctl. They\nalso assume that the udata cannot be NULL, so failing to pass a valid\nudata can trigger a NULL udata crash in those drivers.\n\nThis never happens in real systems since in rdma-core ibv_cmd_reg_mr_ex()\ndoes not accept a udata and those three drivers don't use it, however a\nmalicious userspace could trigger it.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5b2e45049dc06a876bc6b138218ddeb0814502ef",
              "status": "affected",
              "versionType": "git",
              "lessThan": "71d5c41ac583df09a7c32199bef7d42de7267d07"
            },
            {
              "version": "5b2e45049dc06a876bc6b138218ddeb0814502ef",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9e71d0f4944ba5641e01db29b3256c963656d671"
            },
            {
              "version": "5b2e45049dc06a876bc6b138218ddeb0814502ef",
              "status": "affected",
              "versionType": "git",
              "lessThan": "011199f46f44a9fd93a9e5ab5d7fd1328d80e9bf"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.17"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}