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CVE-2026-80845: 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: xfrm: avoid lock inversion in nat keepalive work nat_keepalive_work() walks the state table while xfrm_state_walk() holds net->xfrm.xfrm_state_lock. Its callback then acquires x->lock, which conflicts with the delete path taking the same locks in reverse order via xfrm_state_delete() and __xfrm_state_delete(). This creates an AB-BA deadlock that is reported by lockdep when a NAT keepalive worker races with SA deletion. Fix this by splitting the keepalive walk into two phases. First, collect the candidate states while the walk holds xfrm_state_lock and take a reference on each state. Then, after the walk completes, process each collected state and acquire x->lock without nesting it under xfrm_state_lock.

    Засегнати продукти

    • Linux Linux: f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae преди ea09210462316e5235a25eccb11ad0708d86615e; f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae преди 5c86c895d1cac81a71ead3005084c6265cf6a7a5; f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae преди 89ef3a2e1e4682ab82b0455ce113f8c39fb9e50d; f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae преди a9fa05b7a1246797748d15771052639e0d3cabf1; f531d13bdfe3f4f084aaa8acae2cb0f02295f5ae преди 763fe700b7c58ad64fe5202c5638848244dd4127
    • Linux Linux: 6.11; преди 6.11; 6.12.108 до 6.12.*; 6.18.49 до 6.18.*; 7.1.13 до 7.1.*; 7.2.3 до 7.2.*; от 7.3 нататък

    История

    • 4 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80845: Linux | freedomonline.bg