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CVE-2026-92508: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix potential use after free in ib_free_cq() When accessing a CQ via the netlink path the only synchronization mechanism for the said CQ is rdma_restrack_get(). Currently, rdma_restrack_del() is invoked at the end of ib_free_cq(), which is too late, since by that point vendor-specific resources associated with the CQ might already be freed. This can leave a short window where the CQ remains accessible through restrack, leading to a potential use-after-free. Fix this by moving the rdma_restrack_del() call to be before the freeing of the vendor-specific resources ensuring that the CQ is removed from restrack before its internal resources are released. This guarantees that no new users hold references to a CQ that is in the process of destruction.

    Засегнати продукти

    • Linux Linux: 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди a804b162f9bc2b38b2ed1b4752eea9faadb1645b; 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди 91f8a17a22ab615a03743120e19935e731f28fb9; 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди 76f2cb4f721815c3b6262a6dc2151de88646924c; 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди b8dcca427096fc9c50f1b376847fea72bc842d31; 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди 9abea37942534eeb049335476178696b654b000c; 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди 43403fe45379c64fa6276e5a8ede44493e5d2d3d; 43d781b9fa562f0c6e50f62c870fbfeb9dc85213 преди 29dc2f8e1c97372c2871a70088707933515fbd5b; 7ac277a01f9017fcde4f3f81670c995992945433; 093f87dda065e0f618dd577985eccbe85efb9b54; 5.8.17 преди 5.9; 5.9.2 преди 5.10
    • Linux Linux: 5.10; преди 5.10; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-92508: Linux | freedomonline.bg