{"metadata": {"vulnerability": "CVE-2026-99041", "count": 38, "kinds": {"milestone": 10, "sighting": 1, "kev": 0, "other": 27}, "linked_omitted": 0}, "data": [{"timestamp": "2026-09-25T10:25:14.387Z", "date_only": false, "value": "2026-09-25T10:25:14.387Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99041", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T12:22:00.403Z", "date_only": false, "value": "2026-10-23T12:22:00.403Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99041", "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-2026-99041", "record": "UBUNTU-CVE-2026-99041", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T13:17:27Z", "date_only": false, "value": "2026-10-23T13:17:27Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-P22X-MPCM-2H5H", "record": "GHSA-P22X-MPCM-2H5H", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-23T13:17:27.487Z", "date_only": false, "value": "2026-10-23T13:17:27.487", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99041", "record": "FKIE_CVE-2026-99041", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T14:07:44.022Z", "date_only": false, "value": "2026-10-23T14:07:44.022718Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490611882270427", "record": "CVE-2026-99041", "field": "creation_timestamp", "uuid": "64aca4b2-4684-4553-b8e8-34830ffb14c0", "content": "CVE-2026-99041 ip6_gre: remove obsolete ERSPAN PMTU update In the Linux kernel, the following vulnerability has been resolved:\nip6_gre: remove obsolete ERSPAN PMTU update\nA tc tunnel_key action can attach a METADATA_IP_TUNNEL dst to an skb,and mirred can redirect it to a native ip6erspan device. The legacy PMTUupdate in ip6erspan_tunnel_xmit() treats that metadata dst as a route.Since it has no output device, dst_dev(dst)->mtu dereferences NULL.\nOn v7.2 with KASAN, an initial UID/GID 65534 process with CapEff 0 usedself-created user and network namespaces to trigger:\n  KASAN: null-ptr-deref  RIP: ip6erspan_tunnel_xmit+0x10fc/0x2cc0  Kernel panic - not syncing: Fatal exception in interrupt\nThe update is obsolete. Commit fe1a4ca0a2b7 (\"ip6_gre: process toobigin a better way\") changed IPv6 GRE Too Big handling to update theunderlay route and removed the equivalent block from __gre6_xmit().ip6_tnl_xmit() then propagates the underlay PMTU to the overlay route.\nRemove the stale ERSPAN copy and its now-unused dst variable. Thiseliminates the metadata-dst dereference and keeps ERSPAN aligned withIPv6 GRE PMTU handling.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99041https://git.kernel.org/stable/c/b14a682ad7d45345701e08f9279d483a1da8b36chttps://git.kernel.org/stable/c/f5b143f4cd3fb7673df8d727550478a4b762908ahttps://git.kernel.org/stable/c/2d06cb25a497d3a7034ef9d172626c2d6620a0f1https://git.kernel.org/stable/c/8f27260b989f488760289276377db24fbfb20bfahttps://git.kernel.org/stable/c/8bc60db48e8cba35488bbd6e1f94aa990afa275a#kernel #Linux#CVE_2026_99041#bot", "url": "https://infosec.exchange/users/cve/statuses/117490611882270427"}, {"timestamp": "2026-10-23T15:31:36Z", "date_only": false, "value": "2026-10-23T15:31:36Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-P22X-MPCM-2H5H", "record": "GHSA-P22X-MPCM-2H5H", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-25T01:04:25Z", "date_only": false, 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