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CVE-2026-98354: Linux

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CVSS

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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: RDMA/mad: Fix receive buffer leak when PKey enforcement fails ib_mad_complete_recv() initializes mad_recv_wc->rmpp_list and then runs ib_mad_enforce_security() before linking recv_buf onto that list. On failure it calls ib_free_recv_mad(), which only walks rmpp_list and frees the ib_mad_private of every buffer found there. As the list is still empty at that point, nothing is freed at all. The caller cannot clean up either: ib_mad_recv_done() sets recv to NULL right after ib_mad_complete_recv() returns, assuming the MAD layer took ownership of the buffer. Every MAD that fails the PKey check therefore leaks one ib_mad_private (about 300 bytes per IB port MAD, ~2K for OPA), and a remote node can trigger this repeatedly by sending MADs with a wrong PKey. Link recv_buf onto rmpp_list right after the list is initialized, so the error path has something to free.

    Засегнати продукти

    • Linux Linux: 47a2b338fe63200d716d2e24131cdb49f17c77da преди 4617c9a856188674dddb0ca66979746d07688579; 47a2b338fe63200d716d2e24131cdb49f17c77da преди 8e2036fb47a5b152d53eadbd35abf311bd34cc7f; 47a2b338fe63200d716d2e24131cdb49f17c77da преди bad289e42f512646a988f278f536d21547df73f1; 47a2b338fe63200d716d2e24131cdb49f17c77da преди 752b30e9d339008e5ce7eed412e9446078916129; 47a2b338fe63200d716d2e24131cdb49f17c77da преди 39c4ea72a40503e102ae07e6776005f96ca078a6; 47a2b338fe63200d716d2e24131cdb49f17c77da преди 5091e25ec503f7fc02723ca435226467b68caac7; 47a2b338fe63200d716d2e24131cdb49f17c77da преди c0d8df85db146d6275e226cb950023be69dd6c77; 47a2b338fe63200d716d2e24131cdb49f17c77da преди 3476c28c9addfa253f505e6bd87f1f5598b961d0
    • Linux Linux: 4.13; преди 4.13; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

    История

    • 6 октомври 2026 Публикувано

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