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defer struct eventpoll free to RCU grace period","CVE":"CVE-2026-43074","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43074","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\neventpoll: defer struct eventpoll free to RCU grace period\n\nIn certain situations, ep_free() in eventpoll.c will kfree the epi->ep\neventpoll struct while it still being used by another concurrent thread.\nDefer the kfree() to an RCU callback to prevent UAF.","Type":"Description","Title":"eventpoll: defer struct eventpoll free to RCU grace period"}]}}}