{"metadata": {"vulnerability": "CVE-2026-98968", "count": 22, "kinds": {"milestone": 7, "sighting": 2, "kev": 0, "other": 13}}, "data": [{"timestamp": "2026-09-25T10:25:14.383Z", "date_only": false, "value": "2026-09-25T10:25:14.383Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-98968", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:19:39.236Z", "date_only": false, "value": "2026-10-23T12:19:39.236Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-98968", "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-2026-98968", "record": "UBUNTU-CVE-2026-98968", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T13:17:18Z", "date_only": false, "value": "2026-10-23T13:17:18Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-PHWH-MPFM-5G26", "record": "GHSA-PHWH-MPFM-5G26", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-23T13:17:18.310Z", "date_only": false, "value": "2026-10-23T13:17:18.310", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-98968", "record": "FKIE_CVE-2026-98968", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T13:18:37.284Z", "date_only": false, "value": "2026-10-23T13:18:37.284593Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490418758899613", "record": "CVE-2026-98968", "field": "creation_timestamp", "uuid": "12655f6d-0d17-4f86-ac2b-595443897ffe", "content": "CVE-2026-98968 amt: send the relay's General Query directly from the receive path In the Linux kernel, the following vulnerability has been resolved:\namt: send the relay's General Query directly from the receive path\nAn skb queued in a qdisc can outlive the tunnel it referencesthrough a raw pointer in skb->cb. For example, with igmp_qrv setto 1 on the relay a tunnel lives for 135s, so a netem delay of180s on the amt device outlives it; when the tunnel expires and isfreed, the subsequent dequeue triggers a use-after-free inamt_dev_xmit().\n  BUG: KASAN: slab-use-after-free in amt_dev_xmit+0x2763/0x2e20  Call Trace:   amt_dev_xmit+0x2763/0x2e20 [drivers/net/amt.c:1262]   dev_hard_start_xmit+0x22f/0x620   sch_direct_xmit+0x12e/0xac0   netem_dequeue+0x333/0xc50   net_tx_action+0x35c/0xa60\namt_send_igmp_gq() and amt_send_mld_gq() are only called fromamt_request_handler(), inside the rcu_read_lock_bh() section ofamt_rcv(). amt_request_handler() already has the tunnel the query isfor: it found or created it inside that section. Queuing the query withdev_queue_xmit() only leads back into amt_dev_xmit(), which strips theEthernet header and calls amt_send_membership_query() for that tunnel.\nMake that call directly from the two senders instead, the same wayamt_send_advertisement() transmits from the receive path. The querynever waits in a qdisc, the tunnel is only dereferenced inside theRCU section that found or created it, and nothing is stored inskb->cb, so no lookup or refcount is needed. Remove the query branchof amt_dev_xmit(), amt_skb_cb() and struct amt_skb_cb, which have nousers left.\nBehaviour changes: - The relay's own General Queries no longer pass through the amt   device's egress path: its qdisc, tc egress (clsact/tcx), the   netfilter egress hook and packet taps. They are still visible as   UDP on the underlay. - A query that is sent successfully is no longer counted as   tx_dropped. The old query branch left through the unlock label,   which counted every sent query as dropped. - A query that reaches amt_dev_xmit() on a relay from elsewhere,   such as a userspace querier, is now dropped at the IGMP/MLD type   switch. Before, it trusted whatever skb->cb held, and a NULL   tunnel hit the WARN_ON(1).\nhttps://www.cve.org/CVERecord?id=CVE-2026-98968https://git.kernel.org/stable/c/95114e421196250e3d9662f12df442799477d3c3https://git.kernel.org/stable/c/e7183b7d518ce8b3e1f7284f9881d7a87569df14https://git.kernel.org/stable/c/181cb48c1e9af6b402567e132f879f89d1c54131https://git.kernel.org/stable/c/e7ea63b4195a150604993044ab574d8240f2a399https://git.kernel.org/stable/c/afae89de73dd693cfa329580ba0fba63bd3f0a11#kernel #Linux#CVE_2026_98968#bot", "url": "https://infosec.exchange/users/cve/statuses/117490418758899613"}, {"timestamp": "2026-10-23T13:25:22.194Z", "date_only": false, "value": "2026-10-23T13:25:22.194979Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/vuldb/statuses/117490444974242289", "record": "CVE-2026-98968", "field": "creation_timestamp", "uuid": "678eef4e-f608-41c6-a6d9-93d3b957adc9", "content": "\u26a0\ufe0f A severe vulnerability was disclosed for Linux Kernel (CVE-2026-98968) https://vuldb.com/vuln/425768", "url": "https://infosec.exchange/users/vuldb/statuses/117490444974242289"}, {"timestamp": "2026-10-23T15:31:33Z", "date_only": false, "value": "2026-10-23T15:31:33Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-PHWH-MPFM-5G26", "record": "GHSA-PHWH-MPFM-5G26", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-24T01:10:18Z", "date_only": false, "value": "2026-10-24T01:10:18.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98968", "record": "MSRC_CVE-2026-98968", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-10-24T01:10:18Z", "date_only": false, "value": "2026-10-24T01:10:18.000Z", "kind": "milestone", "label": "Published", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-98968", "record": "MSRC_CVE-2026-98968", "field": "document.tracking.initial_release_date", 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