Связанные уязвимости
[REJECTED CVE] A vulnerability was identified in the Linux kernel's Bluetooth: hci_core package, where a sleeping function (mutex_lock) was improperly invoked from an invalid context within the HCI event handling workqueue, potentially leading to kernel warnings or deadlocks. An attacker exploiting this flaw could trigger crafted Bluetooth events or malformed packets to indirectly cause system instability or denial of service through workqueue execution paths.
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix sleeping function called from invalid context This reworks hci_cb_list to not use mutex hci_cb_list_lock to avoid bugs like the bellow: BUG: sleeping function called from invalid context at kernel/locking/mutex.c:585 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 5070, name: kworker/u9:2 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 4 locks held by kworker/u9:2/5070: #0: ffff888015be3948 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline] #0: ffff888015be3948 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335 #1: ffffc90003b6fd00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline] #1: ffffc90003b6fd00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335 #2: ffff8...
Уязвимость функции hci_cb_list() драйвера Bluetooth ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
