{
  "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-2026-46268",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-46268",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-03T15:50:10.101Z",
    "updatedAt": "2026-06-03T15:50:10.101Z",
    "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: Fix p2pmem_alloc_mmap() warning condition",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition\n\nCommit b7e282378773 has already changed the initial page refcount of\np2pdma page from one to zero, however, in p2pmem_alloc_mmap() it uses\n\"VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))\" to assert the initial page\nrefcount should not be zero and the following will be reported when\nCONFIG_DEBUG_VM is enabled:\n\n  page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x380400000\n  flags: 0x20000000002000(reserved|node=0|zone=4)\n  raw: 0020000000002000 ff1100015e3ab440 0000000000000000 0000000000000000\n  raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000\n  page dumped because: VM_WARN_ON_ONCE_PAGE(!page_ref_count(page))\n  ------------[ cut here ]------------\n  WARNING: CPU: 5 PID: 449 at drivers/pci/p2pdma.c:240 p2pmem_alloc_mmap+0x83a/0xa60\n\nFix by using \"page_ref_count(page)\" as the assertion condition.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b7e2823787735ca009e63f35f164b46df0ef096c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eb9aa9f8010465d927864f5a35bdc5604b0ff51a"
            },
            {
              "version": "b7e2823787735ca009e63f35f164b46df0ef096c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9b69243983fb2f4d4d1f4ef0989bc1296547dc2c"
            },
            {
              "version": "b7e2823787735ca009e63f35f164b46df0ef096c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cb500023a75246f60b79af9f7321d6e75330c5b5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.15"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}