{"metadata": {"vulnerability": "CVE-2026-99249", "count": 21, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 13}}, "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-2026-99249", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-03T11:18:26.800Z", "date_only": false, "value": "2026-11-03T11:18:26.800Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99249", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-03T11:18:26.800Z", "date_only": false, "value": "2026-11-03T11:18:26.800Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-99249", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-11-03T11:18:26.800Z", "date_only": false, "value": "2026-11-03T11:18:26.800Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-99249", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-11-03T11:25:25.170Z", "date_only": false, "value": "2026-11-03T11:25:25.170439Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117552259044762460", "record": "CVE-2026-99249", "field": "creation_timestamp", "uuid": "cda04ded-1d7e-4afb-b72c-a6762f13a8fc", "content": "CVE-2026-99249 pid_namespace: make zap_pid_ns_processes() freezable In the Linux kernel, the following vulnerability has been resolved:\npid_namespace: make zap_pid_ns_processes() freezable\nWhen the init of a pid namespace exits, zap_pid_ns_processes() waitsuntil all other pids in the namespace are freed. A tracer outside thenamespace that does not reap its traced zombies keeps those pidsallocated, so this wait has no upper bound, and while it lasts everysuspend attempt fails:\n  Freezing user space processes failed after 20.006 seconds (2 tasks refusing to freeze, wq_busy=0):\nNeither wait is freezable. The first loop sleeps in do_wait(), whichreturns -ERESTARTSYS on the freezer's fake signal; the loop then clearsTIF_SIGPENDING and waits again without ever freezing. The final loopsleeps in TASK_INTERRUPTIBLE, and since nothing clears TIF_SIGPENDINGthere, schedule() returns immediately after the first freeze attemptand the task spins until the wait ends.\nSleep in TASK_INTERRUPTIBLE | TASK_FREEZABLE in do_wait(), so that thefreezer can freeze tasks waiting there directly, and in TASK_IDLE |TASK_FREEZABLE in the final loop, like coredump_task_exit() does.\nThis was hit with Chromium-based browsers: crashpad ptrace-attaches thethreads of a crashed renderer, which is a pid namespace init, and doesnot reap those killed during the dump.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99249https://git.kernel.org/stable/c/064a6761d6f6ac55d090d3eaca649577ee736713https://git.kernel.org/stable/c/e8dafad7de9ede813af2d48cc04b7c88fef16682https://git.kernel.org/stable/c/4b47107f1a80c809c80093e872bcaccdbae13db4https://git.kernel.org/stable/c/2e10b8a74f55b5aae33db105d3e2d3ae759c865ahttps://git.kernel.org/stable/c/7deb5770840339fe88755bf27b92f74edc26ee87https://git.kernel.org/stable/c/81933038f5e273d17ed22792f906889393b204c5#kernel #Linux#CVE_2026_99249#bot", "url": "https://infosec.exchange/users/cve/statuses/117552259044762460"}, {"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-2026-99249", "record": "UBUNTU-CVE-2026-99249", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-03T12:17:31Z", "date_only": false, "value": 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