{"metadata": {"vulnerability": "CVE-2026-99159", "count": 14, "kinds": {"milestone": 6, "sighting": 1, "kev": 0, "other": 7}}, "data": [{"timestamp": "2026-09-25T10:25:14.397Z", "date_only": false, "value": "2026-09-25T10:25:14.397Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99159", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-28T00:00:00Z", "date_only": false, "value": "2026-10-28T00:00:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99159", "record": "UBUNTU-CVE-2026-99159", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T10:35:12.520Z", "date_only": false, "value": "2026-10-28T10:35:12.520Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99159", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T11:17:36Z", "date_only": false, "value": "2026-10-28T11:17:36Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-PQHV-WX6P-7GP4", "record": "GHSA-PQHV-WX6P-7GP4", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-28T11:17:36.160Z", "date_only": false, "value": "2026-10-28T11:17:36.160", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99159", "record": "FKIE_CVE-2026-99159", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T11:23:35.669Z", "date_only": false, "value": "2026-10-28T11:23:35.669473Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117518278016088916", "record": "CVE-2026-99159", "field": "creation_timestamp", "uuid": "52f25cce-8692-4ddd-95be-710d20da15fb", "content": "CVE-2026-99159 ring-buffer: Fix the sub-buffer array base in rb_meta_subbuf_idx() In the Linux kernel, the following vulnerability has been resolved:\nring-buffer: Fix the sub-buffer array base in rb_meta_subbuf_idx()\nOn a persistent ring buffer, rb_meta_subbuf_idx() can return an index onesub-buffer too high.  rb_setup_ids_meta_page() then fills subbuf_ids[]shifted by one and leaves subbuf_ids[0] NULL, which __rb_map_vma()dereferences when userspace maps trace_pipe_raw.  rb_update_meta_reader()writes two such indices into meta->buffers[], which rb_cpu_meta_valid()would reject on the next boot, discarding the previous boot's trace.\nA CPU's sub-buffer array starts after its meta header and the nr_subbufsintegers that follow, aligned up to a sub-buffer.  rb_meta_subbuf_idx()inverts that calculation but skips only the integers, not the header, soits base is one sub-buffer low whenever the omitted header size crossesthe alignment boundary.\nInvert the calculation with rb_subbufs_from_meta() rather than repeatingit.  rb_range_buffer() maps an index back to an address through the samehelper, so the two directions can no longer disagree.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99159https://git.kernel.org/stable/c/2f1248b728b56d583ea454fedf239550c49f7b18https://git.kernel.org/stable/c/7469b3585ef5f65840d467d2caa811a9098c84b9https://git.kernel.org/stable/c/25132363c723afc39aace8b098f547ab4a0ea759#kernel #Linux#CVE_2026_99159#bot", "url": "https://infosec.exchange/users/cve/statuses/117518278016088916"}, {"timestamp": "2026-10-28T12:31:06Z", "date_only": false, "value": "2026-10-28T12:31:06Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-PQHV-WX6P-7GP4", "record": "GHSA-PQHV-WX6P-7GP4", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-30T06:08:47.209Z", "date_only": false, "value": "2026-10-30T06:08:47.209685Z", "kind": "milestone", "label": "Published", "source": "osv_bellsoft \u00b7 BELL-CVE-2026-99159", 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"label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99159", "record": "FKIE_CVE-2026-99159", "field": "lastModified", "linked_record": true}, {"timestamp": "2026-10-30T15:34:23Z", "date_only": false, "value": "2026-10-30T15:34:23Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-PQHV-WX6P-7GP4", "record": "GHSA-PQHV-WX6P-7GP4", "field": "modified", "linked_record": true}, {"timestamp": "2026-11-03T06:24:04.417Z", "date_only": false, "value": "2026-11-03T06:24:04.41783Z", "kind": "other", "label": "Updated", "source": "osv_bellsoft \u00b7 BELL-CVE-2026-99159", "record": "BELL-CVE-2026-99159", "field": "modified", "linked_record": true}], "metrics": {"as_of": "2026-11-04T20:45:23.356Z", "anchors": {"origin": {"timestamp": "2026-10-28T00:00:00Z", "date_only": false, "value": "2026-10-28T00:00:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99159", "record": "UBUNTU-CVE-2026-99159", "field": "published", 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