{"metadata": {"vulnerability": "CVE-2026-98923", "count": 28, "kinds": {"milestone": 9, "sighting": 1, "kev": 0, "other": 18}, "linked_omitted": 0}, "data": [{"timestamp": "2026-09-25T10:25:14.380Z", "date_only": false, "value": "2026-09-25T10:25:14.380Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-98923", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:03:28.027Z", "date_only": false, "value": "2026-10-23T12:03:28.027Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-98923", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T12:05:45.179Z", "date_only": false, "value": "2026-10-23T12:05:45.179Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-98923", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-23T12:05:45.179Z", "date_only": false, "value": "2026-10-23T12:05:45.179Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-98923", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T12:44:20.801Z", "date_only": false, "value": "2026-10-23T12:44:20.801372Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490283927182557", "record": "CVE-2026-98923", "field": "creation_timestamp", "uuid": "87af8fb9-1556-470f-8072-fdf68b54ac73", "content": "CVE-2026-98923 arm64: io: Reject non-user protection in ioremap_prot() In the Linux kernel, the following vulnerability has been resolved:\narm64: io: Reject non-user protection in ioremap_prot()\nMapping a stack-top page via /dev/mem with PROT_NONE and thenreading that process's /proc/<pid>/cmdline triggers a spurious WARNin ioremap_prot() through generic_access_phys():\n  WARNING: ./arch/arm64/include/asm/io.h:275 at generic_access_phys  Call trace:    generic_access_phys+0x1c8/0x228 (P)    __access_remote_vm+0x2b4/0x398    access_remote_vm+0x14/0x30    get_mm_cmdline+0xf8/0x2a0    proc_pid_cmdline_read+0x68/0x120\ngeneric_access_phys() passes the protection derived from the user PTEto ioremap_prot(). On arm64, a PROT_NONE mapping is represented by apresent-invalid PTE, so pte_present() still returns true and theprotection reaches ioremap_prot().\nA PROT_NONE mapping does not have PTE_USER, causing the existingWARN_ON_ONCE() in ioremap_prot() to fire even though this is a validuser mapping. Execute-only mappings have the same issue and must notbe readable through this path either.\nioremap_prot() should therefore reject protection values withoutPTE_USER without warning. This makes the access fail cleanly forPROT_NONE and execute-only mappings while retaining the existinguser-protection contract.\nhttps://www.cve.org/CVERecord?id=CVE-2026-98923https://git.kernel.org/stable/c/fddc90d4af4550af410f52d11bbf6b5f36443838https://git.kernel.org/stable/c/0b04af3d88bb7fc69b2d92457890608860e42365https://git.kernel.org/stable/c/b17aa4955e3a694c663ebe99626e4c76ca4f7cfbhttps://git.kernel.org/stable/c/9b583795feb51f8d50203228d001760d1344ef01https://git.kernel.org/stable/c/bb756b11ad63832ebee58caf9e8f9381eaecff9f#kernel #Linux#CVE_2026_98923#bot", "url": "https://infosec.exchange/users/cve/statuses/117490283927182557"}, {"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-2026-98923", "record": "UBUNTU-CVE-2026-98923", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": 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