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CVE-2026-68081: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state Put all vmcs12 pages if KVM synthesizes a nested VM-Exit due to invalid guest while emulating VMLAUNCH or VMRESUME. The invalid guest state path doesn't use nested_vmx_vmexit() as that API is intended to be used if and only if L2 is active, and the open coded equivalent neglects to put the vmcs12 pages. Failure to put the vmcs12 pages leaks any pinned pages (and/or mappings) if L1 retries VMLAUNCH/VMRESUME. Note, the !from_vmenter scenario doesn't suffer the same problem, as vmx_get_nested_state_pages() only gets/pins/maps the vmcs12 pages if L2 is active, i.e. if a "full" VM-Exit is guaranteed before KVM will retry getting vmcs12 pages.

    Засегнати продукти

    • Linux Linux: 96c66e87deeeb3cc78a3b82a1de8e365eec206c1 преди c174eb76484786721ae9a104344b952acf0e2717; 96c66e87deeeb3cc78a3b82a1de8e365eec206c1 преди a7bf4f5b19965e4466040ad6b24919c1ed326a84; 96c66e87deeeb3cc78a3b82a1de8e365eec206c1 преди f42669f931a6f45e5918cf5e99989b9a6c65e655; 96c66e87deeeb3cc78a3b82a1de8e365eec206c1 преди 7996013b85687034d2e820cef94d6404192e3a3d; 96c66e87deeeb3cc78a3b82a1de8e365eec206c1 преди 2c87a087c20632d68920272173b5d7c47f9bcf70; 96c66e87deeeb3cc78a3b82a1de8e365eec206c1 преди 2f2312c422fd2695da772cecb30c69994b795964
    • Linux Linux: 5.2; преди 5.2; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

    История

    • 8 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-68081: Linux | freedomonline.bg