{
  "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-2022-49828",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49828",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:09:47.443Z",
    "updatedAt": "2026-05-11T19:07:33.531Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "hugetlbfs: don't delete error page from pagecache",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: don't delete error page from pagecache\n\nThis change is very similar to the change that was made for shmem [1], and\nit solves the same problem but for HugeTLBFS instead.\n\nCurrently, when poison is found in a HugeTLB page, the page is removed\nfrom the page cache.  That means that attempting to map or read that\nhugepage in the future will result in a new hugepage being allocated\ninstead of notifying the user that the page was poisoned.  As [1] states,\nthis is effectively memory corruption.\n\nThe fix is to leave the page in the page cache.  If the user attempts to\nuse a poisoned HugeTLB page with a syscall, the syscall will fail with\nEIO, the same error code that shmem uses.  For attempts to map the page,\nthe thread will get a BUS_MCEERR_AR SIGBUS.\n\n[1]: commit a76054266661 (\"mm: shmem: don't truncate page if memory failure happens\")",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "78bb920344b8a6f04b79a7c254041723b931c94f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "30571f28bb35c826219971c63bcf60d2517112ed"
            },
            {
              "version": "78bb920344b8a6f04b79a7c254041723b931c94f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ec667443b2dbc6cdbbac4073e51a17733158ec6a"
            },
            {
              "version": "78bb920344b8a6f04b79a7c254041723b931c94f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8625147cafaa9ba74713d682f5185eb62cb2aedb"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.13"
            },
            {
              "version": "5.15.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}