mm/huge_memory: update file PMD counter before folio_put()_CVE-2026-53189

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: update file PMD counter before folio_put()\n\n__split_huge_pmd_locked() updates the file/shmem RSS counter after\ndropping the PMD mapping's folio reference.  If folio_put() drops the last\nreference, mm_counter_file() can later read freed folio state via\nfolio_test_swapbacked().\n\nMove the counter update before folio_put().",
    "published": "2026-06-25T08:39:01.708Z",
    "modified": "2026-06-28T06:40:05.635Z",
    "type": "cve",
    "title": "mm/huge_memory: update file PMD counter before folio_put()",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/84b3212b166b446faea27ebebb7161405ffceef9\nhttps://git.kernel.org/stable/c/108963978a681c0c468d279cac2b930c27672877\nhttps://git.kernel.org/stable/c/459771c9cf30f378bdbd30fc65d17f7eb931bb59\nhttps://git.kernel.org/stable/c/ae9d4caf6f133e884cf5fcda4982c493b35e5194\nhttps://git.kernel.org/stable/c/6c29a8ba084e89499ca77b947e07ae817f9c16ce\nhttps://git.kernel.org/stable/c/5f5b604e1e6bde4e889199168ee80fe8306d06ad\nhttps://git.kernel.org/stable/c/ed5b030931292c94133437ac5e5ff580e498eabd\nhttps://git.kernel.org/stable/c/8d878059924f12c1bc24556a92ec56add74de3c8",
    "id": "CVE-2026-53189",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux fadae2953072e9005c5f1d64e1049edb043494dc\nLinux Linux 4.19",
    "sourceHref": "",
    "cvss": {
        "score": 7.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}