{
  "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-2026-80894",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80894",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-04T17:11:10.093Z",
    "updatedAt": "2026-09-04T17:11:10.093Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "iommufd: Fix wrong hwpt passed to iommufd_auto_response_faults on replace",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix wrong hwpt passed to iommufd_auto_response_faults on replace\n\niommufd_hwpt_replace_device() calls:\n\n\tiommufd_auto_response_faults(hwpt, old_handle);\n\npassing the *new* hwpt together with the handle of\nthe device's *old* domain. This should be a parameter mismatch:\n\n1. Semantically, iommufd_auto_response_faults(x, handle) scans\n   x->fault's deliver list and response xarray for groups matching\n   \"handle\". A group is queued under the hwpt that was attached at\n   fault-delivery time. old_handle is fetched *before* the domain switch,\n   so its group lives on old->fault, not on the new hwpt->fault.\n\n2. Historically, the first argument was \"old\". The routine was\n   introduced by commit b7d8833677ba (\"iommufd: Fault-capable hwpt\n   attach/detach/replace\") as __fault_domain_replace_dev() in\n   fault.c, correctly calling iommufd_auto_response_faults(old, curr).\n   Commit fb21b1568ada (\"iommufd: Make attach_handle generic than\n   fault specific\") moved this into iommufd_hwpt_replace_device() in\n   device.c and swapped it to \"hwpt\". This should be a refactor regression,\n   not an intentional change.\n\nFix this by passing \"old\" instead.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6d11543bf37abdf60b8e6022a62fccfb82a5fe2e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "adb87155b67f9759ff010c0a99559f5bffa45dcf"
            },
            {
              "version": "fb21b1568adaa76af7a8c853f37c60fba8b28661",
              "status": "affected",
              "versionType": "git",
              "lessThan": "564ac339c0f8bada4e77a57a92bab9d3df635e07"
            },
            {
              "version": "fb21b1568adaa76af7a8c853f37c60fba8b28661",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8eb077025279304268bd58657f0af3d388822b21"
            },
            {
              "version": "fb21b1568adaa76af7a8c853f37c60fba8b28661",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba5c0f28a26e7d9be1e0997f8920dd638e2782fd"
            },
            {
              "version": "1e0216b6a58c79b5ee91c78706d5f560e4d1f56f",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4b23c4b991eb90cc7bca42e9f81142feedd4bb56",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.12.24",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.105"
            },
            {
              "version": "6.13.12",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.14"
            },
            {
              "version": "6.14.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.15"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "version": "6.12.105",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.44",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}