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CVE-2026-80756: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: selinux: do not cancel a policy conversion that never started sel_write_load() calls selinux_policy_cancel() when sel_make_policy_nodes() fails, and that helper dereferences the outgoing policy to cancel its sidtab conversion. On the first policy load there is no outgoing policy: security_load_policy() returns early for that case, before it converts anything, and state->policy is still NULL. A first load that fails while building the selinuxfs tree therefore takes a NULL dereference in selinux_policy_cancel(), reached from a write(2) to /sys/fs/selinux/load. Skip the cancel when there is no old policy, mirroring the check security_load_policy() already makes before it converts.

    Засегнати продукти

    • Linux Linux: 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди 2d29983104f06f5b0babcd5a25a0f0408272cd27; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди a4f182f8715cb0819445f0850cd5436828f4bafc; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди 1059789ae9f99cbbe3a78e361e9c0976beb5958b; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди 1acc317d67a755a45e32419a15d70e403fa43f0e; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди a42932c6aa33d0aac683cacdf1ec7009b955ba5d; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди 1b4ff94ae7c580c880291519fb0e3e2bd075beef; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди 219c96de5d9b6b4af7e8576ad897b774cc3ee9a7; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 преди e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e
    • Linux Linux: 5.10; преди 5.10; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; 7.2 до *

    История

    • 3 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80756: Linux | freedomonline.bg