{"metadata": {"vulnerability": "CVE-2026-99244", "count": 26, "kinds": {"milestone": 8, "sighting": 1, "kev": 0, "other": 17}, "linked_omitted": 0}, "data": [{"timestamp": "2026-09-25T10:25:14.403Z", "date_only": false, "value": "2026-09-25T10:25:14.403Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99244", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-02T23:00:00Z", "date_only": false, "value": "2026-11-02T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2026-4302", "record": "WID-SEC-W-2026-4302", "field": "document.tracking.revision_history.0.date", "linked_record": true}, {"timestamp": "2026-11-02T23:00:00Z", "date_only": false, "value": "2026-11-02T23:00:00.000+00:00", "kind": "milestone", "label": "Published", "source": "csaf_certbund \u00b7 WID-SEC-W-2026-4302", "record": "WID-SEC-W-2026-4302", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-02T23:00:00Z", "date_only": false, "value": "2026-11-02T23:00:00.000+00:00", "kind": "other", "label": "Release date", "source": "csaf_certbund \u00b7 WID-SEC-W-2026-4302", "record": "WID-SEC-W-2026-4302", "field": "vulnerabilities.27.release_date", "linked_record": true, "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-03T11:15:14.715Z", "date_only": false, "value": "2026-11-03T11:15:14.715Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99244", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-03T11:22:03.697Z", "date_only": false, "value": "2026-11-03T11:22:03.697059Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117552245838495500", "record": "CVE-2026-99244", "field": "creation_timestamp", "uuid": "86afca8a-7b9e-4722-ada2-700a8f74d5a0", "content": "CVE-2026-99244 pid_namespace: prevent TIF_NOTIFY_SIGNAL from interrupting the reaper In the Linux kernel, the following vulnerability has been resolved:\npid_namespace: prevent TIF_NOTIFY_SIGNAL from interrupting the reaper\nSince commit 7fea700e04bd (\"zap_pid_ns_processes: clearTIF_NOTIFY_SIGNAL along with TIF_SIGPENDING\") zap_pid_ns_processes()clears TIF_NOTIFY_SIGNAL before every kernel_wait4() call. Otherwisekernel_wait4() doesn't sleep and returns -ERESTARTSYS ifsignal_pending() is true and the reaper busy-waits.\nBut clearing TIF_NOTIFY_SIGNAL doesn't fix it. It can get raised again.For example, klp_send_signals() sets it raw against any task that hasn'ttransitioned yet. And it keeps sending it until the livepatch finishes.\nThe sleep loop waiting for pid_allocated to drop has the same problemand it doesn't even clear anything. So a schedule() inTASK_INTERRUPTIBLE returns immediately.\nUse a no_notify_signal guard. signal_pending() will ignoreTIF_NOTIFY_SIGNAL and the pid namespace reaper sleeps until a childexits or free_pid() wakes it.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99244https://git.kernel.org/stable/c/2c20ace1698d03a23467351be1d281e89b36ade3https://git.kernel.org/stable/c/9ab0324f4868eeb20c63f063a1e5bc01d5539212https://git.kernel.org/stable/c/30b274508c743f243c82904954c4e416d7143d4chttps://git.kernel.org/stable/c/70178691c467c8f9f722765299fd8524c3121a35https://git.kernel.org/stable/c/3d15ac36ce174477efa5365e424dbd47950fd2b9https://git.kernel.org/stable/c/f46cd8241d9b83f2279cc0db3e9d3e181b548a59#kernel #Linux#CVE_2026_99244#bot", "url": "https://infosec.exchange/users/cve/statuses/117552245838495500"}, {"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-2026-99244", "record": 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