{"metadata": {"vulnerability": "CVE-2026-99163", "count": 35, "kinds": {"milestone": 10, "sighting": 1, "kev": 0, "other": 24}, "linked_omitted": 0}, "data": [{"timestamp": "2026-09-25T10:25:14.398Z", "date_only": false, "value": "2026-09-25T10:25:14.398Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99163", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-28T10:35:15.577Z", "date_only": false, "value": "2026-10-28T10:35:15.577Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99163", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T11:17:00Z", "date_only": false, "value": "2026-10-28T11:17:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99163", "record": "UBUNTU-CVE-2026-99163", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"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-8CF9-783R-H9XG", "record": "GHSA-8CF9-783R-H9XG", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-28T11:17:36.613Z", "date_only": false, "value": "2026-10-28T11:17:36.613", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99163", "record": "FKIE_CVE-2026-99163", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T11:26:22.036Z", "date_only": false, "value": "2026-10-28T11:26:22.036700Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117518288636044267", "record": "CVE-2026-99163", "field": "creation_timestamp", "uuid": "2e234491-6a7b-4e44-a90d-f4c1386d4a8e", "content": "CVE-2026-99163 tracing/histograms: Reject non-stacktrace fields for synthetic stacktrace fields In the Linux kernel, the following vulnerability has been resolved:\ntracing/histograms: Reject non-stacktrace fields for synthetic stacktrace fields\nIn check_synth_field(), when a synthetic event field is a stacktrace(field->is_stack) and the histogram field is not a \"long[\" stacktracearray, validation falls through to the generic size and signednesscomparison.\nBecause parse_synth_field() sets a stacktrace field's type to\"__data_loc unsigned long[]\", its size is sizeof(u64) andsynth_field_signed() marks it as signed.  Consequently, any 8-bytesigned scalar histogram field passes the fallback check, and its scalarvalue is subsequently dereferenced as a kernel stacktrace pointer inget_field_size() and trace_stack().\nFurthermore, checking strstr(hist_field->type, \"long[\") is insufficientbecause tracepoint fields defined with __bitmask() or __rel_bitmask()also have type \"__data_loc unsigned long[]\" or \"__rel_loc unsignedlong[]\", whilst create_hist_field() treats them as 4-byte scalar valueswithout HIST_FIELD_FL_STACKTRACE.\nPropagate HIST_FIELD_FL_STACKTRACE to variable references and fieldvariables (whilst excluding variable aliases from per-elementstacktrace capture), and reject any mismatch betweenHIST_FIELD_FL_STACKTRACE and field->is_stack in check_synth_field().\nhttps://www.cve.org/CVERecord?id=CVE-2026-99163https://git.kernel.org/stable/c/1f36e4ddd05d540f363dbaa4c23042549f15b3efhttps://git.kernel.org/stable/c/deb336ae7c7b341591a6862cf6fcfeca97c77dfdhttps://git.kernel.org/stable/c/a244c241593b5b38a08f0df2cb43c26574efbdcb#kernel #Linux#CVE_2026_99163#bot", "url": "https://infosec.exchange/users/cve/statuses/117518288636044267"}, {"timestamp": "2026-10-28T12:31:06Z", "date_only": false, "value": "2026-10-28T12:31:06Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-8CF9-783R-H9XG", "record": "GHSA-8CF9-783R-H9XG", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T23:00:00Z", "date_only": false, "value": "2026-10-28T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2026-4224", "record": "WID-SEC-W-2026-4224", "field": 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