{"metadata": {"vulnerability": "CVE-2026-99065", "count": 29, "kinds": {"milestone": 8, "sighting": 1, "kev": 0, "other": 20}, "linked_omitted": 0}, "data": [{"timestamp": "2026-09-25T10:25:14.389Z", "date_only": false, "value": "2026-09-25T10:25:14.389Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99065", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:23:08.458Z", "date_only": false, "value": "2026-10-23T12:23:08.458Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99065", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T12:23:08.458Z", "date_only": false, "value": "2026-10-23T12:23:08.458Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-99065", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-23T12:23:08.458Z", "date_only": false, "value": "2026-10-23T12:23:08.458Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-99065", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T13:17:00Z", "date_only": false, "value": "2026-10-23T13:17:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99065", "record": "UBUNTU-CVE-2026-99065", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:30Z", "date_only": false, "value": "2026-10-23T13:17:30Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-PX5V-F8QG-W5F8", "record": "GHSA-PX5V-F8QG-W5F8", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-23T13:17:30.367Z", "date_only": false, "value": "2026-10-23T13:17:30.367", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99065", "record": "FKIE_CVE-2026-99065", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:30.367Z", "date_only": false, "value": "2026-10-23T13:17:30.367", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99065", "record": "FKIE_CVE-2026-99065", "field": "lastModified", "linked_record": true}, {"timestamp": "2026-10-23T14:23:53.431Z", "date_only": false, "value": "2026-10-23T14:23:53.431074Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490675336141257", "record": "CVE-2026-99065", "field": "creation_timestamp", "uuid": "8b66ab80-7934-43ff-a24e-1bc8945831f1", "content": "CVE-2026-99065 cgroup/cpuset: Handle cpu hotplug race in guarantee_active_cpus() In the Linux kernel, the following vulnerability has been resolved:\ncgroup/cpuset: Handle cpu hotplug race in guarantee_active_cpus()\nWith commit 2125c0034c5d (\"cgroup/cpuset: Make cpuset hotplug processingsynchronous\"), the cpuset hotplug operation becomes synchronous. Thatcommit also removes the code that handles race between cpuset_hotplug_workand cpu hotplug notifier with the assumption that race is now gone.Later commit 7a0aabd9ce69 (\"cgroup/cpuset: Always use cpu_active_mask\")updates the cpuset code to always use cpu_active_mask instead ofcpu_online_mask in some places including guarantee_online_cpus() whichis renamed to guarantee_active_cpus() in that commit.\nIn the case of CPU offline operation, cpu_active_mask is updatedfirst in sched_cpu_deactivate() to remove the offline CPU beforecpuset_handle_hotplug() is called to update the effective_cpus of theaffected cpusets. The cpu_online_mask is updated after that near the endof the offline operation to remove the offline CPU. As a result, the racecomes back and the top cpuset may not have any active CPU leading to NULLpointer dereference during the race window when guarantee_active_cpus()is called after cpu_active_mask is updated to remove the CPU to be torndown but before cpuset_handle_hotplug() is able to properly update theeffective_cpus of the top cpuset.\nFix this by adding back the NULL cs check to avoid this problem.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99065https://git.kernel.org/stable/c/8d88d3221204fbb1b6dc2c0f2f2181fe49126639https://git.kernel.org/stable/c/a21c255159bfe0034740292e10d2e258feeeb10dhttps://git.kernel.org/stable/c/23b1ab15ca91f2cffaf149d9bb0fafeb700c7db2#kernel #Linux#CVE_2026_99065#bot", "url": "https://infosec.exchange/users/cve/statuses/117490675336141257"}, {"timestamp": "2026-10-23T15:31:36Z", "date_only": false, "value": "2026-10-23T15:31:36Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-PX5V-F8QG-W5F8", "record": "GHSA-PX5V-F8QG-W5F8", 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