{
  "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-2026-45880",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-45880",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-27T12:16:52.117Z",
    "updatedAt": "2026-05-27T12:16:52.117Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "PCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/P2PDMA: Release per-CPU pgmap ref when vm_insert_page() fails\n\nWhen vm_insert_page() fails in p2pmem_alloc_mmap(), p2pmem_alloc_mmap()\ndoesn't invoke percpu_ref_put() to free the per-CPU ref of pgmap acquired\nafter gen_pool_alloc_owner(), and memunmap_pages() will hang forever when\ntrying to remove the PCI device.\n\nFix it by adding the missed percpu_ref_put().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "baa42b756d183a59572f3890981a3d32b8d05d40"
            },
            {
              "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "51b7181cfbedf289ce794b6d97a1c596c309ec38"
            },
            {
              "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e19cce88ec4c4877f4ff2469099b9cf23cc3e93e"
            },
            {
              "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a1f4dc72efc3204db95d052058d785cad7ce755f"
            },
            {
              "version": "7e9c7ef83d785236f5a8c3761dd053fae9b92fb8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6220694c52a5a04102b48109e4f24e958b559bd3"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.2"
            },
            {
              "version": "6.6.128",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.75",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}