{"metadata": {"vulnerability": "CVE-2026-98881", "count": 21, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 13}}, "data": [{"timestamp": "2026-09-25T10:25:14.378Z", "date_only": false, "value": "2026-09-25T10:25:14.378Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-98881", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T11:37:32.327Z", "date_only": false, "value": "2026-10-23T11:37:32.327Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-98881", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-23T12:03:57.799Z", "date_only": false, "value": "2026-10-23T12:03:57.799420Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490125182900737", "record": "CVE-2026-98881", "field": "creation_timestamp", "uuid": "df949917-fdff-4ae7-a46b-bf5fed4f1267", "content": "CVE-2026-98881 net: bridge: remove stale rcu_barrier() in br_multicast_dev_del() In the Linux kernel, the following vulnerability has been resolved:\nnet: bridge: remove stale rcu_barrier() in br_multicast_dev_del()\nThis rcu_barrier() came from a time call_rcu() calls were used innet/bridge/br_multicast.c.\nNow kfree_rcu() is there, we can remove this problematic rcu_barrier()which causes extreme RTNL pressure in many syzbot reports.\nINFO: task syz-executor:77945 is blocked on a mutex likely owned by task kworker/u1024:5:36537.task:kworker/u1024:5 state:D stack:24616 pid:36537 tgid:36537 ppid:2      task_flags:0x4208060 flags:0x00080000 last_sleep:612797637337Workqueue: netns cleanup_netCall Trace: <TASK>  [<ffffffff81914eaa>] context_switch+0xf2a/0x1730 kernel/sched/core.c:6483  [<ffffffff81201143>] __schedule+0x1133/0x43a0 kernel/sched/core.c:8411  [<ffffffff8120446b>] __schedule_loop kernel/sched/core.c:8514 [inline]  [<ffffffff8120446b>] schedule+0xab/0x260 kernel/sched/core.c:8529  [<ffffffff8121a093>] schedule_timeout+0xc3/0x2b0 kernel/time/sleep_timeout.c:75  [<ffffffff81205347>] do_wait_for_common kernel/sched/completion.c:100 [inline]  [<ffffffff81205347>] __wait_for_common kernel/sched/completion.c:121 [inline]  [<ffffffff81205347>] wait_for_common kernel/sched/completion.c:132 [inline]  [<ffffffff81205347>] wait_for_completion+0x2c7/0x5d0 kernel/sched/completion.c:153  [<ffffffff81b8f27f>] rcu_barrier+0x49f/0x620 kernel/rcu/tree.c:3888  [<ffffffff860091b3>] br_multicast_dev_del+0x303/0x350 net/bridge/br_multicast.c:4459  [<ffffffff85fb5dbc>] br_dev_uninit+0x1c/0x40 net/bridge/br_device.c:157  [<ffffffff8568058c>] unregister_netdevice_many_notify+0x1c1c/0x2300 net/core/dev.c:12599  [<ffffffff8562be43>] ops_exit_rtnl_list net/core/net_namespace.c:187 [inline]  [<ffffffff8562be43>] ops_undo_list+0x3d3/0x940 net/core/net_namespace.c:248\nhttps://www.cve.org/CVERecord?id=CVE-2026-98881https://git.kernel.org/stable/c/35f9f11740515a10b084adfb1ce691351f2452abhttps://git.kernel.org/stable/c/0443f6aac6bf6a91e406273fdda11497cef6ad07https://git.kernel.org/stable/c/ac0e823a228f94ad9d7a3d876cc07e59a7afb806https://git.kernel.org/stable/c/f0018acf0b66f93a292667c9a9c2a26c570cf270https://git.kernel.org/stable/c/372ee8fbe0f796031c60f676ec90f0788c26523dhttps://git.kernel.org/stable/c/39679927fa7aaf4601119f7234342d1b5d4f6f84https://git.kernel.org/stable/c/25ae123db10ba9ab890b56bcdb0a4363aee8529a#kernel #Linux#CVE_2026_98881#bot", "url": "https://infosec.exchange/users/cve/statuses/117490125182900737"}, {"timestamp": "2026-10-23T12:18:21Z", "date_only": false, "value": "2026-10-23T12:18:21Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-52XP-VQWJ-RP88", "record": "GHSA-52XP-VQWJ-RP88", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-23T12:18:21.670Z", "date_only": false, "value": "2026-10-23T12:18:21.670", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-98881", "record": "FKIE_CVE-2026-98881", "field": "published"}, {"timestamp": "2026-10-23T12:31:36Z", "date_only": false, "value": "2026-10-23T12:31:36Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-52XP-VQWJ-RP88", "record": "GHSA-52XP-VQWJ-RP88", "field": "published"}, {"timestamp": "2026-10-23T12:31:36Z", "date_only": false, "value": "2026-10-23T12:31:36Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-52XP-VQWJ-RP88", "record": "GHSA-52XP-VQWJ-RP88", "field": "modified"}, {"timestamp": "2026-10-24T01:03:39Z", "date_only": false, "value": "2026-10-24T01:03:39.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-10-24T01:03:39Z", "date_only": false, "value": "2026-10-24T01:03:39.000Z", "kind": "other", "label": "Date", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "field": "vulnerabilities.0.remediations.0.date"}, {"timestamp": "2026-10-24T01:03:39Z", "date_only": false, "value": "2026-10-24T01:03:39.000Z", "kind": "milestone", "label": "Published", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "field": "document.tracking.initial_release_date"}, {"timestamp": "2026-10-24T01:05:04Z", "date_only": false, "value": "2026-10-24T01:05:04.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "field": "document.tracking.revision_history.1.date"}, {"timestamp": "2026-10-24T14:45:43Z", "date_only": false, "value": "2026-10-24T14:45:43.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "field": "document.tracking.revision_history.2.date"}, {"timestamp": "2026-10-24T14:45:43Z", "date_only": false, "value": "2026-10-24T14:45:43.000Z", "kind": "other", "label": "Updated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-10-25T07:01:02.664Z", "date_only": false, "value": "2026-10-25T07:01:02.664Z", "kind": "other", "label": "Document generated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98881", "record": "MSRC_CVE-2026-98881", "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-2026-98881", "record": "UBUNTU-CVE-2026-98881", "field": "published"}, {"timestamp": "2026-10-26T06:56:04.487Z", "date_only": false, "value": "2026-10-26T06:56:04.487Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-98881", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-26T06:56:04.487Z", "date_only": false, "value": "2026-10-26T06:56:04.487Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-98881", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-26T07:17:12.987Z", "date_only": false, "value": "2026-10-26T07:17:12.987", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-98881", "record": "FKIE_CVE-2026-98881", "field": "lastModified"}, {"timestamp": "2026-10-27T22:30:28Z", "date_only": false, "value": "2026-10-27T22:30:28Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-98881", "record": "UBUNTU-CVE-2026-98881", "field": "modified"}, {"timestamp": "2026-10-28T06:07:47.267Z", "date_only": false, "value": "2026-10-28T06:07:47.267460Z", "kind": "milestone", "label": "Published", "source": "osv_bellsoft 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