CVE-2024-41063

CVE Details

Release Date:

2024-07-29

Description

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

See more information about CVE-2024-41063 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12780	2024-10-11
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12782	2024-10-14
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12814	2024-11-11
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12780	2024-10-11
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12782	2024-10-14
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12815	2024-11-11
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12815	2024-11-11