CVE-2024-26801

CVE Details

Release Date:

2024-04-04

Description

In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: Avoid potential use-after-free in hci_error_reset\nWhile handling the HCI_EV_HARDWARE_ERROR event, if the underlying\nBT controller is not responding, the GPIO reset mechanism would\nfree the hci_dev and lead to a use-after-free in hci_error_reset.\nHere's the call trace observed on a ChromeOS device with Intel AX201:\nqueue_work_on+0x3e/0x6c\n__hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth ]\n? init_wait_entry+0x31/0x31\n__hci_cmd_sync+0x16/0x20 [bluetooth ]\nhci_error_reset+0x4f/0xa4 [bluetooth ]\nprocess_one_work+0x1d8/0x33f\nworker_thread+0x21b/0x373\nkthread+0x13a/0x152\n? pr_cont_work+0x54/0x54\n? kthread_blkcg+0x31/0x31\nret_from_fork+0x1f/0x30\nThis patch holds the reference count on the hci_dev while processing\na HCI_EV_HARDWARE_ERROR event to avoid potential crash.

See more information about CVE-2024-26801 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 6 (kernel-uek)	ELSA-2024-12606	2024-09-02
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12606	2024-09-02
Oracle Linux version 8 (kernel)	ELSA-2024-4211	2024-07-02
Oracle Linux version 9 (kernel)	ELSA-2024-4349	2024-07-08
Oracle VM version 3 (kernel-uek)	OVMSA-2024-0011	2024-09-03