PT-2025-3024 · Linux+4 · Linux Kernel+4

Published 2024-12-09 · Updated 2025-09-29 · CVE-2024-54460

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.12.0-rc6+

Description A circular locking dependency warning has been detected in the Linux kernel's Bluetooth module. The issue occurs when the iso listen bis function is called, which can lead to a potential deadlock with the hdev lock. The warning is triggered when the kworker/u81:2/2623 task tries to acquire the sk lock-AF BLUETOOTH-BTPROTO ISO lock while already holding the &hdev->lock lock.

The existing dependency chain is as follows:

• &hdev->lock is held by the hci le per adv report evt function
• sk lock-AF BLUETOOTH-BTPROTO ISO is held by the iso connect cfm function

This can cause a deadlock when the iso connect cfm function tries to acquire the &hdev->lock lock while already holding the sk lock-AF BLUETOOTH-BTPROTO ISO lock.

Recommendations To resolve this issue, update the Linux kernel to a version that includes the fix for the circular locking dependency warning. As a temporary workaround, consider disabling the Bluetooth module until a patch is available.

Exploit

Fix

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

ALT-PU-2024-17881

BDU:2025-04673

CVE-2024-54460

INFSA-2025_6966

RHSA-2025:6966

RHSA-2025_6966

USN-7379-1

USN-7379-2

USN-7380-1

USN-7381-1

USN-7382-1

USN-7513-1

USN-7513-2

USN-7513-3

USN-7513-4

USN-7513-5

USN-7514-1

USN-7515-1

USN-7515-2

USN-7522-1

USN-7523-1

USN-7524-1

Affected Products

Alt Linux

Linuxmint

Linux Kernel

Red Hat

Ubuntu

References · 819

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/54xxx/CVE-2024-54460.json · Exploit
• https://ubuntu.com/security/CVE-2024-50127 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56746 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56779 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50150 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7513-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50285 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56586 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50291 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50137 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56725 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-53179 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50231 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56619 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-53202 · Vendor Advisory