{
  "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-2026-80651",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80651",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-28T06:48:59.460Z",
    "updatedAt": "2026-08-28T06:48:59.460Z",
    "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": "crypto: ccp/sev-dev-tsm - bail out early when pdev->bus is NULL",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp/sev-dev-tsm - bail out early when pdev->bus is NULL\n\ndsm_create() initially checks pdev->bus when computing segment_id:\n\n\tu8 segment_id = pdev->bus ? pci_domain_nr(pdev->bus) : 0;\n\nBut the next two lines unconditionally dereference pdev->bus via\npcie_find_root_port() and especially pci_dev_id(pdev), which expands\nto PCI_DEVID(dev->bus->number, dev->devfn). If pdev->bus is in fact\nNULL, segment_id is initialised to 0 but the very next statement\ncrashes the kernel.\n\nsmatch flags this:\n\n  drivers/crypto/ccp/sev-dev-tsm.c:253 dsm_create() error: we\n    previously assumed 'pdev->bus' could be null (see line 251)\n\nMake the NULL handling consistent: if pdev->bus is NULL the device\nhas no PCI context to work with and SEV TIO setup cannot proceed,\nso return -ENODEV before any of the bus-dependent lookups. The\nremaining initialisation now runs only on the path where pdev->bus\nis known to be valid.\n\nNo change for callers where pdev->bus is non-NULL, which is the\nonly case where dsm_create() did meaningful work before this change.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4be423572da1f4c11f45168e3fafda870ddac9f8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bafd740095fb3d0e9a00540bc8f3484c38e6f85"
            },
            {
              "version": "4be423572da1f4c11f45168e3fafda870ddac9f8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "930d9d36ea618a775985446a125aedeb401db522"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.19"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}