{"metadata": {"vulnerability": "CVE-2026-98995", "count": 18, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 10}}, "data": [{"timestamp": "2026-09-25T10:25:14.384Z", "date_only": false, "value": "2026-09-25T10:25:14.384Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-98995", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:20:14.155Z", "date_only": false, "value": "2026-10-23T12:20:14.155Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-98995", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"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-2026-98995", "record": "UBUNTU-CVE-2026-98995", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:21Z", "date_only": false, "value": "2026-10-23T13:17:21Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-H4Q9-QCG7-RJ48", "record": "GHSA-H4Q9-QCG7-RJ48", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-23T13:17:21.660Z", "date_only": false, "value": "2026-10-23T13:17:21.660", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-98995", "record": "FKIE_CVE-2026-98995", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:36:47.542Z", "date_only": false, "value": "2026-10-23T13:36:47.542604Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490490213735400", "record": "CVE-2026-98995", "field": "creation_timestamp", "uuid": "18056d4f-127b-4471-b01f-cf220dafbf54", "content": "CVE-2026-98995 namespace: reset the old parent's ->overmount in mnt_change_mountpoint() In the Linux kernel, the following vulnerability has been resolved:\nnamespace: reset the old parent's ->overmount in mnt_change_mountpoint()\n__umount_mnt() resets ->overmount of the parent when it unmounts themount that overmounts it. mnt_change_mountpoint() doesn't. It moves themount to its new parent and leaves the old one pointing at it.\nFor a mount that is moved beneath in attach_recursive_mnt() that doesn'tmatter. The new mount has already reset ->overmount of the old parent bythe time the old top mount is moved onto it.\nIt matters for reparent() though. propagate_umount() moves a survivingovermount onto the first ancestor that isn't going to be unmounted. Themount it was taken from is unmounted immediately afterwards. If a filedescriptor keeps that unmounted mount alive ->overmount points at themoved mount. That's a dangling pointer and UAF as the moved mount isunmounted and freed.\ndo_lock_mount() follows ->overmount from the target path undermount_lock. With a file descriptor on such a mount as the target of amount beneath topmost_overmount() walks into the freed mount anddo_lock_mount() takes references on whatever it finds there.\nSo reset ->overmount of the old parent in mnt_change_mountpoint() thesame way __umount_mnt() does. A mount's ->overmount is then always amount that is attached to it.\nhttps://www.cve.org/CVERecord?id=CVE-2026-98995https://git.kernel.org/stable/c/5e0a1f2c753a79749bc2ead3ae2f2ede3941daa5https://git.kernel.org/stable/c/08d575ee89393fd812dbdca7b5d7b4574cd5a564https://git.kernel.org/stable/c/476ef286a7a5db8bda51325dc0c45887b4d99d9a#kernel #Linux#CVE_2026_98995#bot", "url": "https://infosec.exchange/users/cve/statuses/117490490213735400"}, {"timestamp": "2026-10-23T15:31:34Z", "date_only": false, "value": "2026-10-23T15:31:34Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-H4Q9-QCG7-RJ48", "record": "GHSA-H4Q9-QCG7-RJ48", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-24T14:09:55.095Z", "date_only": false, "value": "2026-10-24T14:09:55.095Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-98995", "field": "cveMetadata.dateUpdated"}, 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