{"metadata": {"vulnerability": "CVE-2026-98985", "count": 17, "kinds": {"milestone": 6, "sighting": 1, "kev": 0, "other": 10}}, "data": [{"timestamp": "2026-09-25T10:25:14.384Z", "date_only": false, "value": "2026-09-25T10:25:14.384Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-98985", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:20:03.622Z", "date_only": false, "value": "2026-10-23T12:20:03.622Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-98985", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-23T12:20:03.622Z", "date_only": false, "value": "2026-10-23T12:20:03.622Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-98985", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-23T12:20:03.622Z", "date_only": false, "value": "2026-10-23T12:20:03.622Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-98985", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T13:17:20Z", "date_only": false, "value": "2026-10-23T13:17:20Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-GFP5-4W3Q-VWJX", "record": "GHSA-GFP5-4W3Q-VWJX", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-23T13:17:20.420Z", "date_only": false, "value": "2026-10-23T13:17:20.420", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-98985", "record": "FKIE_CVE-2026-98985", "field": "published"}, {"timestamp": "2026-10-23T13:17:20.420Z", "date_only": false, "value": "2026-10-23T13:17:20.420", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-98985", "record": "FKIE_CVE-2026-98985", "field": "lastModified"}, {"timestamp": "2026-10-23T13:30:04.342Z", "date_only": false, "value": "2026-10-23T13:30:04.342129Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490463772318141", "record": "CVE-2026-98985", "field": "creation_timestamp", "uuid": "cb14f937-e3f5-4d8b-a004-d1bdebeeac8c", "content": "CVE-2026-98985 namespace: check the mounts before reading their parents in pivot_root() In the Linux kernel, the following vulnerability has been resolved:\nnamespace: check the mounts before reading their parents in pivot_root()\npath_pivot_root() reads the parents of new_root and of the caller's rootand checks whether they are shared before it checks that either mount isin the caller's mount namespace. Only namespace_sem is held. That's finefor a mount that is in the caller's mount namespace.\nBut new_root can be a file descriptor to a mount that has been unmountedand that only the file descriptor keeps alive. If that mount stayedattached to its parent when it was unmounted nothing pins the parent forit. The final mntput() of the parent unhooks the children undermount_lock alone and frees the parent afterwards:\n  pivot_root()                     close(fd), last ref on the parent  ------------                     ---------------------------------  ex_parent = new_mnt->mnt_parent                                   mntput_no_expire_slowpath()                                     __umount_mnt(new_mnt)                                   cleanup_mnt()                                     call_rcu()  IS_MNT_SHARED(ex_parent)\n  BUG: KASAN: slab-use-after-free in path_pivot_root+0xf1a/0x1840  Read of size 4 at addr ffff8881047382f8 by task pivot_widen/157   path_pivot_root+0xf1a/0x1840   __x64_sys_pivot_root+0x165/0x190\nThe same goes for the caller's root via chroot(). Both outcomes of thecheck end in EINVAL so nothing but the read itself goes wrong. It's thesame thing commit bb4609405752 (\"statmount: read the parent of anunmounted mount under mount_lock\") fixed for statmount().\nCheck that both mounts are in the caller's namespace before theirparents are read. Every path returns EINVAL either way.\nhttps://www.cve.org/CVERecord?id=CVE-2026-98985https://git.kernel.org/stable/c/a56d4f8f8f4c5d9ac339d5c03a9d90eecd3697fchttps://git.kernel.org/stable/c/3c2441e21c3df867e4131e0ff784ecdb3a7a55f8https://git.kernel.org/stable/c/e3aba6900483f64e6c9eb328150dd633b7d36c1chttps://git.kernel.org/stable/c/3dad2330c89343ba083cf7868779083fd5fbe0fehttps://git.kernel.org/stable/c/6b7c001eb5857fa09041f47673666060a2e5fc1c#kernel #Linux#CVE_2026_98985#bot", "url": "https://infosec.exchange/users/cve/statuses/117490463772318141"}, {"timestamp": "2026-10-23T15:31:33Z", "date_only": false, "value": "2026-10-23T15:31:33Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-GFP5-4W3Q-VWJX", "record": "GHSA-GFP5-4W3Q-VWJX", "field": "published"}, {"timestamp": "2026-10-23T15:31:33Z", "date_only": false, "value": "2026-10-23T15:31:33Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-GFP5-4W3Q-VWJX", "record": "GHSA-GFP5-4W3Q-VWJX", "field": "modified"}, {"timestamp": "2026-10-24T01:11:01Z", "date_only": false, "value": "2026-10-24T01:11:01.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98985", "record": "MSRC_CVE-2026-98985", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-10-24T01:11:01Z", "date_only": false, "value": "2026-10-24T01:11:01.000Z", "kind": "milestone", "label": "Published", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98985", "record": "MSRC_CVE-2026-98985", "field": "document.tracking.initial_release_date"}, {"timestamp": "2026-10-25T01:02:51Z", "date_only": false, "value": "2026-10-25T01:02:51.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98985", "record": "MSRC_CVE-2026-98985", "field": "document.tracking.revision_history.1.date"}, {"timestamp": "2026-10-25T01:02:51Z", "date_only": false, "value": "2026-10-25T01:02:51.000Z", "kind": "other", "label": "Updated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98985", "record": "MSRC_CVE-2026-98985", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-10-25T07:01:02.652Z", "date_only": false, "value": "2026-10-25T07:01:02.652Z", "kind": "other", "label": "Document generated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98985", "record": "MSRC_CVE-2026-98985", "field": "document.tracking.generator.date"}, {"timestamp": "2026-10-26T00:00:00Z", "date_only": false, "value": "2026-10-26T00:00:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-98985", "record": "UBUNTU-CVE-2026-98985", "field": "published"}, {"timestamp": "2026-10-26T00:00:00Z", "date_only": false, "value": "2026-10-26T00:00:00Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-98985", "record": "UBUNTU-CVE-2026-98985", "field": "modified"}]}