{"metadata": {"vulnerability": "CVE-2026-99016", "count": 19, "kinds": {"milestone": 7, "sighting": 2, "kev": 0, "other": 10}}, "data": [{"timestamp": "2026-09-25T10:25:14.386Z", "date_only": false, "value": "2026-09-25T10:25:14.386Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99016", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:20:47.859Z", "date_only": false, "value": "2026-10-23T12:20:47.859Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99016", "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-2026-99016", "record": "UBUNTU-CVE-2026-99016", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:24Z", "date_only": false, "value": "2026-10-23T13:17:24Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-5MV4-WX47-M6WH", "record": "GHSA-5MV4-WX47-M6WH", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-23T13:17:24.413Z", "date_only": false, "value": "2026-10-23T13:17:24.413", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99016", "record": "FKIE_CVE-2026-99016", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:50:54.691Z", "date_only": false, "value": "2026-10-23T13:50:54.691251Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490545734439345", "record": "CVE-2026-99016", "field": "creation_timestamp", "uuid": "d4db87c4-c60a-4708-8b23-1e71d5528669", "content": "CVE-2026-99016 riscv: futex: untag the user pointer before the atomic access In the Linux kernel, the following vulnerability has been resolved:\nriscv: futex: untag the user pointer before the atomic access\naccess_ok() checks untagged_addr(uaddr), but arch_futex_atomic_op_inuser()and futex_atomic_cmpxchg_inatomic() hand the raw uaddr to the inline asmamoswap/amoadd/.../lr.w+sc.w through the \"+m\" (*uaddr) operand.  When thetagged address ABI is enabled (CONFIG_RISCV_ISA_SUPM, prctlPR_SET_TAGGED_ADDR_CTRL with PMLEN != 0), those two addresses differ: auser pointer whose top PMLEN bits hold a tag passes access_ok() afteruntagging, but the atomic is then performed on the still-tagged rawaddress.\nSupervisor-mode data accesses are not subject to the U-mode pointermasking (that is governed by menvcfg.PMM, which the kernel does not set),so hardware does not strip the tag for the kernel's own access.  WithSv57 and PMLEN=16 the tag bits overlap the canonical-address bits, so atagged pointer can name a canonical kernel virtual address (e.g. in thelinear map) whose untagged form is a valid user address.  An unprivilegedprocess can thus make FUTEX_WAKE_OP perform an atomic read-modify-write onan arbitrary kernel address, with the matching FUTEX_OP_CMP_* resultserving as a read oracle.\nget_user()/put_user()/raw_copy_{to,from}_user() already untag the pointerafter the access_ok() check; do the same in the futex helpers so theatomic operates on the address that was actually validated.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99016https://git.kernel.org/stable/c/2e5c80bbc062a8dda33e687ebf7be8f074ee4f7dhttps://git.kernel.org/stable/c/8e48d8d51ab37b7decfbff3e2844e027a52ad6eahttps://git.kernel.org/stable/c/405290be962b32eec842776fbe3bdf81f15b1676#kernel #Linux#CVE_2026_99016#bot", "url": "https://infosec.exchange/users/cve/statuses/117490545734439345"}, {"timestamp": "2026-10-23T15:31:34Z", "date_only": false, "value": "2026-10-23T15:31:34Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-5MV4-WX47-M6WH", "record": "GHSA-5MV4-WX47-M6WH", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-24T14:10:03.722Z", "date_only": false, "value": "2026-10-24T14:10:03.722Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-99016", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-24T14:10:03.722Z", "date_only": false, "value": "2026-10-24T14:10:03.722Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-99016", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-24T14:16:52.657Z", "date_only": false, "value": "2026-10-24T14:16:52.657", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99016", "record": "FKIE_CVE-2026-99016", "field": "lastModified", "linked_record": true}, {"timestamp": "2026-10-24T15:32:49Z", "date_only": false, "value": "2026-10-24T15:32:49Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-5MV4-WX47-M6WH", "record": "GHSA-5MV4-WX47-M6WH", "field": "modified", "linked_record": true}, {"timestamp": "2026-10-25T01:04:35Z", "date_only": false, "value": "2026-10-25T01:04:35.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99016", "record": "MSRC_CVE-2026-99016", "field": "document.tracking.revision_history.0.date", "linked_record": true}, {"timestamp": "2026-10-25T01:04:35Z", "date_only": false, "value": "2026-10-25T01:04:35.000Z", "kind": "milestone", "label": "Published", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99016", "record": "MSRC_CVE-2026-99016", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-25T01:04:35Z", "date_only": false, "value": "2026-10-25T01:04:35.000Z", "kind": "other", "label": "Updated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99016", "record": "MSRC_CVE-2026-99016", "field": "document.tracking.current_release_date", "linked_record": true}, {"timestamp": "2026-10-25T07:01:02.673Z", "date_only": false, "value": "2026-10-25T07:01:02.673Z", "kind": "other", "label": "Document generated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99016", "record": "MSRC_CVE-2026-99016", "field": "document.tracking.generator.date", "linked_record": true}, {"timestamp": "2026-10-26T01:45:59.639Z", "date_only": false, "value": "2026-10-26T01:45:59.639936Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3myqlyx6qxk2w", "record": "CVE-2026-99016", "field": "creation_timestamp", "uuid": "2e1ddfc1-4866-4a73-b922-68df66a622c1", "content": "\ud83d\udfe0 CVE-2026-99016 - High (7.8)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nriscv: futex: untag the user...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-99016/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "url": "https://bsky.app/profile/thehackerwire.bsky.social/post/3myqlyx6qxk2w"}, {"timestamp": "2026-10-28T06:07:55.705Z", "date_only": false, "value": "2026-10-28T06:07:55.705622Z", "kind": "milestone", "label": "Published", "source": "osv_bellsoft \u00b7 BELL-CVE-2026-99016", "record": "BELL-CVE-2026-99016", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T06:31:45.580Z", "date_only": false, "value": "2026-10-28T06:31:45.580492Z", "kind": "other", "label": "Updated", "source": "osv_bellsoft \u00b7 BELL-CVE-2026-99016", "record": "BELL-CVE-2026-99016", "field": "modified", "linked_record": true}, {"timestamp": "2026-10-30T06:30:13Z", "date_only": false, "value": "2026-10-30T06:30:13Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99016", "record": "UBUNTU-CVE-2026-99016", "field": "modified", "linked_record": true}], "metrics": {"as_of": "2026-11-03T10:23:45.092Z", "anchors": {"origin": {"timestamp": "2026-10-23T12:20:47.859Z", "date_only": false, "value": "2026-10-23T12:20:47.859Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99016", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-10-23T12:20:47.859Z", "date_only": false, "value": "2026-10-23T12:20:47.859Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99016", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 943377.233895, "hours": 262.0492316375, "days": 10.918717984895833, "min_seconds": 943377.233895, "max_seconds": 943377.233895, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-10-23T12:20:47.859Z", "date_only": false, "value": "2026-10-23T12:20:47.859Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99016", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-03T10:23:45.092Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}