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CVE-2026-90255: Linux

8.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се от съседна мрежа, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix the SCO setup context lifetime hci_setup_sync() queues a conn_handle_t with a NULL destroy callback, so the context is only freed if hci_enhanced_setup_sync() actually runs. An entry that is cancelled instead is leaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when there is no destroy callback, and hci_cmd_sync_clear() cancels every pending entry when the controller is unregistered. The context also stores a bare hci_conn pointer, so the connection can be freed while the work is queued. The dequeue in hci_conn_del() does not cover it either, as it matches on entry->data == conn and entry->data is the wrapper here. Same problem as commit 2f5d635ad590 ("Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks"). Hold the connection and release both from a destroy callback. The submission failure path drops both, since hci_cmd_sync_submit() does not call the destroy callback when it fails to queue.

    Засегнати продукти

    • Linux Linux: e07a06b4eb417f5271d33ce2240e93c62d98b7b4 преди 37cfec41365c826d5496ef5d00c9e215eee53aa2; e07a06b4eb417f5271d33ce2240e93c62d98b7b4 преди 9a2ba69cebe3fc5a3d4fa8eaaad3c42862723c27; e07a06b4eb417f5271d33ce2240e93c62d98b7b4 преди a661de0ee29d0915c5e924edf91d2be2b4d35bae; e07a06b4eb417f5271d33ce2240e93c62d98b7b4 преди c1fe3c74a89a7749cba3caa0dd91236049c66116; e07a06b4eb417f5271d33ce2240e93c62d98b7b4 преди 4d7b1c834d2775b73c65e4888e01f5af8b477fe9; e07a06b4eb417f5271d33ce2240e93c62d98b7b4 преди 42de40abe25db9211107af8896d0fd741f10648d
    • Linux Linux: 6.1; преди 6.1; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-90255: Linux | freedomonline.bg