CVE-2024-26801

Bluetooth: Avoid potential use-after-free in hci_error_reset

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: Avoid potential use-after-free in hci_error_reset

While handling the HCI_EV_HARDWARE_ERROR event, if the underlying
BT controller is not responding, the GPIO reset mechanism would
free the hci_dev and lead to a use-after-free in hci_error_reset.

Here's the call trace observed on a ChromeOS device with Intel AX201:
queue_work_on+0x3e/0x6c
__hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]
? init_wait_entry+0x31/0x31
__hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]
hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]
process_one_work+0x1d8/0x33f
worker_thread+0x21b/0x373
kthread+0x13a/0x152
? pr_cont_work+0x54/0x54
? kthread_blkcg+0x31/0x31
ret_from_fork+0x1f/0x30

This patch holds the reference count on the hci_dev while processing
a HCI_EV_HARDWARE_ERROR event to avoid potential crash.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Bluetooth: evite el posible use-after-free en hci_error_reset Mientras se maneja el evento HCI_EV_HARDWARE_ERROR, si el controlador BT subyacente no responde, el mecanismo de reinicio de GPIO liberaría hci_dev y provocaría un error. use-after-free en hci_error_reset. Este es el seguimiento de llamadas observado en un dispositivo ChromeOS con Intel AX201: queue_work_on+0x3e/0x6c __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth ] ? init_wait_entry+0x31/0x31 __hci_cmd_sync+0x16/0x20 [bluetooth ] hci_error_reset+0x4f/0xa4 [bluetooth ] Process_one_work+0x1d8/0x33f trabajador_thread+0x21b/0x373 kthread+0x13a /0x152 ? pr_cont_work+0x54/0x54? kthread_blkcg+0x31/0x31 ret_from_fork+0x1f/0x30 Este parche mantiene el recuento de referencias en hci_dev mientras procesa un evento HCI_EV_HARDWARE_ERROR para evitar posibles fallas.

A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in how it handles hardware failure when it occurs. This flaw allows a local user to potentially crash the system.

*Credits: N/A

CVSS Scores

Red Hatv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-19 CVE Reserved
2024-04-04 CVE Published
2024-04-05 EPSS Updated
2024-08-15 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (13)

URL	Tag	Source
https://git.kernel.org/stable/c/c7741d16a57cbf97eebe53f27e8216b1ff20e20c	Vuln. Introduced
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/e0b278650f07acf2e0932149183458468a731c03	2024-03-06
https://git.kernel.org/stable/c/98fb98fd37e42fd4ce13ff657ea64503e24b6090	2024-03-06
https://git.kernel.org/stable/c/6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2	2024-03-06
https://git.kernel.org/stable/c/da4569d450b193e39e87119fd316c0291b585d14	2024-03-06
https://git.kernel.org/stable/c/45085686b9559bfbe3a4f41d3d695a520668f5e1	2024-03-06
https://git.kernel.org/stable/c/2ab9a19d896f5a0dd386e1f001c5309bc35f433b	2024-03-06
https://git.kernel.org/stable/c/dd594cdc24f2e48dab441732e6dfcafd6b0711d1	2024-03-06
https://git.kernel.org/stable/c/2449007d3f73b2842c9734f45f0aadb522daf592	2024-02-28

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-26801	2024-07-23
https://bugzilla.redhat.com/show_bug.cgi?id=2273429	2024-07-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 4.19.309 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 4.19.309"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 5.4.271 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 5.4.271"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 5.10.212 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 5.10.212"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 5.15.151 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 5.15.151"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 6.1.81 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.1.81"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 6.6.21 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.6.21"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 6.7.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.7.9"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.0 < 6.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.8"		en		Affected