{"metadata": {"vulnerability": "CVE-2026-99138", "count": 20, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 12}}, "data": [{"timestamp": "2026-09-25T10:25:14.395Z", "date_only": false, "value": "2026-09-25T10:25:14.395Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99138", "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-2026-99138", "record": "UBUNTU-CVE-2026-99138", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T10:34:49.993Z", "date_only": false, "value": "2026-10-28T10:34:49.993Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99138", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T11:09:28.232Z", "date_only": false, "value": "2026-10-28T11:09:28.232044Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117518222453365257", "record": "CVE-2026-99138", "field": "creation_timestamp", "uuid": "96594876-6544-42d3-91a8-33d3e645d31a", "content": "CVE-2026-99138 tcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO) In the Linux kernel, the following vulnerability has been resolved:\ntcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO)\ndo_tcp_getsockopt() reads icsk->icsk_ca_ops and dereferences theget_info function pointer without rcu_read_lock(). With BPF struct_opscongestion control, ca_ops can point to dynamically allocated memorythat is freed concurrently, resulting in a use-after-free when thekernel dereferences or calls through the stale pointer.\n  BUG: KASAN: slab-use-after-free in do_tcp_getsockopt+0x2037/0x23e0  Read of size 8 at addr ffff888013701258 by task exploit/149   do_tcp_getsockopt+0x2037/0x23e0 (net/ipv4/tcp.c:4564)   tcp_getsockopt+0x91/0xf0   __sys_getsockopt+0xf7/0x170\nFix this by wrapping the ca_ops load and get_info call withinrcu_read_lock()/rcu_read_unlock(), and using READ_ONCE() to loadthe icsk_ca_ops pointer.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99138https://git.kernel.org/stable/c/86814e5370068ec2bf0caa6e6d55c3e5bfc6c324https://git.kernel.org/stable/c/39aa489e85752f9de214edb0f85e4d578e57af29https://git.kernel.org/stable/c/385e474086c2e7e29e2dded690be40dc273e20ee#kernel #Linux#CVE_2026_99138#bot", "url": "https://infosec.exchange/users/cve/statuses/117518222453365257"}, {"timestamp": 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