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CVE-2026-90254: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: free the advertising instance on the failure and cancel paths adv_timeout_expire() hands a kmalloc()ed instance byte to hci_cmd_sync_queue() with a NULL destroy callback, and only adv_timeout_expire_sync() frees it. That leaks on two paths: - the return value is not checked, and hci_cmd_sync_queue() does not take ownership when it fails (-ENETDOWN, -ENODEV, -ENOMEM); - a cancelled entry is not released, as _hci_cmd_sync_cancel_entry() does not free entry->data when there is no destroy callback. hci_cmd_sync_clear() cancels every pending entry when the controller is unregistered. Free the buffer from a destroy callback, and in the caller when the entry could not be queued at all.

    Засегнати продукти

    • Linux Linux: c249ea9b4309cf3250c5bbb42a05d38d0ed9071c преди c2019224a766245b7db39d87fdfe84c3fdc879d9; c249ea9b4309cf3250c5bbb42a05d38d0ed9071c преди 193182c6467f508a8a61d5db506d796ffed6eee6; c249ea9b4309cf3250c5bbb42a05d38d0ed9071c преди 2e3d827cd56865c14f6ca118bbccd7801091fb21; c249ea9b4309cf3250c5bbb42a05d38d0ed9071c преди 9c3b6c1413bd0b4993642d987616331f84d9b7f5; c249ea9b4309cf3250c5bbb42a05d38d0ed9071c преди bb5ca1cc7744c41c59002bd6523714a685ae6595; c249ea9b4309cf3250c5bbb42a05d38d0ed9071c преди 120d8dc042e3d45073bb6e50ee7b058a0b182627
    • 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-2026-90254: Linux | freedomonline.bg