{"metadata": {"vulnerability": "CVE-2026-99156", "count": 20, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 12}}, "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-2026-99156", "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-2026-99156", "record": "UBUNTU-CVE-2026-99156", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T10:35:10.493Z", "date_only": false, "value": "2026-10-28T10:35:10.493Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99156", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T11:17:35Z", "date_only": false, "value": "2026-10-28T11:17:35Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-3WP3-5585-MC8Q", "record": "GHSA-3WP3-5585-MC8Q", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-28T11:17:35.797Z", "date_only": false, "value": "2026-10-28T11:17:35.797", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99156", "record": "FKIE_CVE-2026-99156", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T11:21:34.501Z", "date_only": false, "value": "2026-10-28T11:21:34.501191Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117518270068048451", "record": "CVE-2026-99156", "field": "creation_timestamp", "uuid": "634b3464-62be-405a-b88e-c806e43d7b36", "content": "CVE-2026-99156 scsi: st: Fix use-after-free race between st_remove() and st_open() In the Linux kernel, the following vulnerability has been resolved:\nscsi: st: Fix use-after-free race between st_remove() and st_open()\nst_remove() drops the probe reference on the scsi_tape with kref_put()and only afterwards removes its index from st_index_idr. If that was thelast reference, scsi_tape_release() frees the structure while it isstill published in the idr.\nscsi_tape_get(), called from st_open(), looks up the tape inst_index_idr and takes a reference under st_ref_mutex andst_index_lock. remove_cdevs() does not wait for opens that are alreadypast chrdev_open(), so an open that is blocked on st_ref_mutex whilest_remove() holds it can take the mutex as soon as st_remove() drops it,find the freed tpnt in the idr and call kref_get() on it:\n  BUG: KASAN: slab-use-after-free in st_open  Write of size 4 ...   st_open (drivers/scsi/st.c:254 drivers/scsi/st.c:1291)   chrdev_open  ...  Freed by task ...:   kfree   st_remove (drivers/scsi/st.c:4512)\nRemove the index from the idr before dropping the reference, all underst_ref_mutex. A concurrent scsi_tape_get() now either runs first andholds a valid reference that keeps the tape alive, or runs afterwardsand finds nothing, so st_open() fails with -ENXIO.\nThis restores the ordering st_remove() had before the conversion tost_index_idr, where the tape was unpublished from scsi_tapes[] beforethe final kref_put().\nhttps://www.cve.org/CVERecord?id=CVE-2026-99156https://git.kernel.org/stable/c/a1647b653549ff29f0422a63eabf329b842f3822https://git.kernel.org/stable/c/18a0e3733ce38718688e813e5e2d1106bd4830e5https://git.kernel.org/stable/c/71caf7f84bd62a4bf91cc95abd2de690afb8d15f#kernel #Linux#CVE_2026_99156#bot", "url": "https://infosec.exchange/users/cve/statuses/117518270068048451"}, {"timestamp": "2026-10-28T12:31:05Z", "date_only": false, "value": "2026-10-28T12:31:05Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-3WP3-5585-MC8Q", "record": "GHSA-3WP3-5585-MC8Q", "field": "published", "metric_role": "disclosure", "metric_basis": 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