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CVE-2026-89527: 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: svcrdma: Use svc_xprt_put to free listener on create failure svc_rdma_create() calls kfree(cma_xprt) when svc_rdma_create_listen_id() fails. svc_xprt_init() has already acquired a net namespace reference via get_net_track(); kfree bypasses svc_xprt_free() which releases it. Replace the kfree() with svc_xprt_put() so the kref_init birth reference drops to zero and svc_xprt_free() dispatches svc_rdma_free() to clean up properly. sc_cm_id is still NULL at that point; the preceding patch added the necessary NULL guard in svc_rdma_free(). svc_xprt_free() also drops the module reference via module_put(), but the caller _svc_xprt_create() does the same on xpo_create failure, double-putting the single try_module_get() it acquired. Take a compensating __module_get() before the svc_xprt_put() to keep the count balanced, matching the convention in svc_rdma_accept()'s error path.

    Засегнати продукти

    • Linux Linux: 4fb8518bdac8e85f6580ea3f586adf396cd472bc преди 31b8293495ba94ccf494e556a318886b716884b6; 4fb8518bdac8e85f6580ea3f586adf396cd472bc преди 2e35ec558b8cece9399a50141ecaeadbdb8768dc; 4fb8518bdac8e85f6580ea3f586adf396cd472bc преди ee70d690b5544b736706a9a5796aafb634013f54; 4fb8518bdac8e85f6580ea3f586adf396cd472bc преди e68380710fc970e07610b2f42594575ad35fdb1c; 4fb8518bdac8e85f6580ea3f586adf396cd472bc преди ac1dd6002f758ab7dd3e737757e5a1bb1c0b38d6; 4fb8518bdac8e85f6580ea3f586adf396cd472bc преди e346ef7bcb137f50c49f969330ab7dcf64ea1654
    • Linux Linux: 2.6.37; преди 2.6.37; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.56 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89527: Linux | freedomonline.bg