KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation_CVE-2026-53277

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation\n\nwalk_s1() and kvm_walk_nested_s2() expect to be called while holding\nkvm->srcu to guard against memslot changes. While this is generally\nthe case, __kvm_at_s12() and __kvm_find_s1_desc_level() call into the\nrespective walkers without taking kvm->srcu.\n\nFix by acquiring kvm->srcu prior to the table walk in both instances.",
    "published": "2026-06-25T08:40:00.458Z",
    "modified": "2026-06-28T06:41:21.099Z",
    "type": "cve",
    "title": "KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/97706097f9b851cfe55c3b00b083dfc2bcf542bc\nhttps://git.kernel.org/stable/c/ec42b4ed1b072ea2d03f086061aa67bad6d8de39\nhttps://git.kernel.org/stable/c/f2ca45b50d4216c9cc7ffabf50d9ad1932209251",
    "id": "CVE-2026-53277",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux be04cebf3e78874627dc1042991d5d504464a5cc\nLinux Linux be04cebf3e78874627dc1042991d5d504464a5cc\nLinux Linux be04cebf3e78874627dc1042991d5d504464a5cc\nLinux Linux 6.12",
    "sourceHref": "",
    "cvss": {
        "score": 8.8,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "be04cebf3e78874627dc1042991d5d504464a5cc",
    "vendor": "Linux",
    "ai_description": "A vulnerability in the Linux kernel's KVM: arm64 component allows for potential memory corruption due to missing SRCU lock for page table walks in fault injection and AT emulation.",
    "ai_severity": "High",
    "ai_vendor": "Linux",
    "ai_product": "Linux Kernel",
    "ai_version": "6.12, be04cebf3e78874627dc1042991d5d504464a5cc",
    "ai_score": 8.8
}