{"metadata": {"vulnerability": "CVE-2026-99063", "count": 22, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 14}}, "data": [{"timestamp": "2026-09-25T10:25:14.388Z", "date_only": false, "value": "2026-09-25T10:25:14.388Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99063", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:23:04.655Z", "date_only": false, "value": "2026-10-23T12:23:04.655Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99063", "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-2026-99063", "record": "UBUNTU-CVE-2026-99063", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:30Z", "date_only": false, "value": "2026-10-23T13:17:30Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-VQPJ-F54G-HRC3", "record": "GHSA-VQPJ-F54G-HRC3", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-23T13:17:30.140Z", "date_only": false, "value": "2026-10-23T13:17:30.140", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99063", "record": "FKIE_CVE-2026-99063", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T14:22:36.010Z", "date_only": false, "value": "2026-10-23T14:22:36.010481Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490670046656991", "record": "CVE-2026-99063", "field": "creation_timestamp", "uuid": "1e61021b-2f48-4995-ace3-daed4ca0fa08", "content": "CVE-2026-99063 dm ioctl: don't let data_start run past the buffer In the Linux kernel, the following vulnerability has been resolved:\ndm ioctl: don't let data_start run past the buffer\nstruct dm_ioctl has seven bytes of trailing padding, so the smallestbuffer userspace is allowed to ask for, offsetof(struct dm_ioctl, data),is seven bytes shorter than sizeof(struct dm_ioctl).\nget_result_buffer() sets data_start to sizeof(struct dm_ioctl) withoutlooking at how big the buffer actually is. Ask for the minimum anddata_start ends up seven bytes past the end. Callers add it todata_size, and ctl_ioctl() copies that much back to userspace:\n  BUG: KASAN: slab-out-of-bounds in _copy_to_user+0xad/0xd0  Read of size 312 at addr ffff8880169e4c00 by task repro-dm/140   ctl_ioctl+0x5e3/0xcb0   dm_ctl_ioctl+0x25/0x40  allocated 305-byte region [ffff8880169e4c00, ffff8880169e4d31)\nA DM_LIST_DEVICES with data_size set to 305 is enough to hit it, and theseven bytes that leak are whatever sat next to the allocation.\nClamp data_start to the buffer size.\nNote that this is not a security bug because the out-of-bounds read canonly be triggered by root.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99063https://git.kernel.org/stable/c/98195e822343a656b92e235847ab3e72b1a3f920https://git.kernel.org/stable/c/e5c3f3d8935ecc64c962fb66e6a86dbf79218f61https://git.kernel.org/stable/c/5680b6fb3054677d4ee65d3baba24b649f1b430ehttps://git.kernel.org/stable/c/725b49c689bbb29ef740b0d6b5ea9390baa9a695https://git.kernel.org/stable/c/9b3fcf519d370df94a56f3b272d9eddffffa5be8#kernel #Linux#CVE_2026_99063#bot", "url": "https://infosec.exchange/users/cve/statuses/117490670046656991"}, {"timestamp": "2026-10-23T15:31:37Z", "date_only": false, "value": "2026-10-23T15:31:37Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-VQPJ-F54G-HRC3", "record": "GHSA-VQPJ-F54G-HRC3", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-25T01:04:58Z", "date_only": false, "value": "2026-10-25T01:04:58.000Z", "kind": "other", "label": "Advisory revision", "source": 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