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Tracker / CVE-2024-41063

CVE-2024-41063

Media 5.5

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: cancel all works upon hci_unregister_dev() syzbot is reporting that calling hci_release_dev() from hci_error_reset() due to hci_dev_put() from hci_error_reset() can cause deadlock at destroy_workqueue(), for hci_error_reset() is called from hdev->req_workqueue which destroy_workqueue() needs to flush. We need to make sure that hdev->{rx_work,cmd_work,tx_work} which are queued into hdev->workqueue and hdev->{power_on,error_reset} which are queued into hdev->req_workqueue are no longer running by the moment destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); are called from hci_release_dev(). Call cancel_work_sync() on these work items from hci_unregister_dev() as soon as hdev->list is removed from hci_dev_list.

Prodotti e versioni affette

linux linux_kernel
linux linux_kernel · … → 4.19.319
linux linux_kernel · 4.20 → 5.4.281
linux linux_kernel · 5.11 → 5.15.164
linux linux_kernel · 5.16 → 6.1.101
linux linux_kernel · 5.5 → 5.10.223
linux linux_kernel · 6.2 → 6.6.42
linux linux_kernel · 6.7 → 6.9.11

Analisi

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