{"metadata": {"vulnerability": "CVE-2026-99262", "count": 19, "kinds": {"milestone": 6, "sighting": 1, "kev": 0, "other": 12}}, "data": [{"timestamp": "2026-09-25T10:25:14.404Z", "date_only": false, "value": "2026-09-25T10:25:14.404Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99262", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-03T11:48:15.294Z", "date_only": false, "value": "2026-11-03T11:48:15.294Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99262", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-03T11:51:25.646Z", "date_only": false, "value": "2026-11-03T11:51:25.646616Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117552361317323922", "record": "CVE-2026-99262", "field": "creation_timestamp", "uuid": "b99e24ec-fc4e-4072-b005-ff327bb8f213", "content": "CVE-2026-99262 io_uring/timeout: don't lose a cancel as io-wq arms a timeout In the Linux kernel, the following vulnerability has been resolved:\nio_uring/timeout: don't lose a cancel as io-wq arms a timeout\nAn IORING_OP_TIMEOUT run by io-wq, because of IOSQE_ASYNC, has the sameproblem as poll, futex and waitid. io_wq_submit_work() looks atIO_WQ_WORK_CANCEL once, before it issues the request. A cancel in betweenflags the work, gets -EALREADY, and searches ->timeout_list in vain,while the worker then adds the request and starts the timer:\n  io-wq worker                          io_try_cancel()  io_wq_submit_work()    IO_WQ_WORK_CANCEL isn't set                                        io_async_cancel_one()                                          sets IO_WQ_WORK_CANCEL                                          = -EALREADY                                        io_timeout_cancel() = -ENOENT    io_timeout()      adds the request to ->timeout_list      hrtimer_start()    = IOU_ISSUE_SKIP_COMPLETE\nNobody looks at the flag again, and the timeout runs its course. At ringexit, io_uring_try_cancel_requests() cancels io-wq work and then killsthe timeouts the same way, so an exiting task can get stuck for the fullduration of such a timeout.\nLook at the flag under ->timeout_lock, which the search takes as well,and fail the request if it is set. If the search came first, the flag isvisible. If it comes later, it finds the request on the list.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99262https://git.kernel.org/stable/c/f1fabf17f37b252b11d8fe5c70c8056b70b005cahttps://git.kernel.org/stable/c/68cd06ba918d9658c36c1973a0184795738dcc46https://git.kernel.org/stable/c/f9d5e02649587885852f46b6dc7c081b87f0ac3ahttps://git.kernel.org/stable/c/f10ab47077e63d6eee35b242c257c3947bb49e64https://git.kernel.org/stable/c/df705a274da10da7bb546e08b49fa80a6ef19c78#kernel #Linux#CVE_2026_99262#bot", "url": "https://infosec.exchange/users/cve/statuses/117552361317323922"}, {"timestamp": "2026-11-03T12:17:00Z", "date_only": false, "value": "2026-11-03T12:17:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99262", "record": "UBUNTU-CVE-2026-99262", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-03T12:17:33Z", "date_only": false, "value": "2026-11-03T12:17:33Z", "kind": 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