CVE-2024-41063
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.
Weaknesses
- CWE-667
- Improper Locking
- CVE Status
- PUBLISHED
- NVD Status
- Analyzed
- CNA
- kernel.org
- Published Date
-
2024-07-29 15:15:14
(7 weeks ago) - Updated Date
-
2024-09-10 17:10:45
(8 days ago)
Affected Products
Configuration #1
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