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CVE-2022-50166

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: When HCI work queue is drained, only queue chained work The HCI command, event, and data packet processing workqueue…

Published Jun 18, 2025CWE-667EPSS 0.18%

Overview

CVE-2022-50166 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

Bluetooth: When HCI work queue is drained, only queue chained work

The HCI command, event, and data packet processing workqueue is drained

to avoid deadlock in commit

76727c02c1e1 ("Bluetooth: Call drain_workqueue() before resetting state").

There is another delayed work, which will queue command to this drained

workqueue. Which results in the following error report:

Bluetooth: hci2: command 0x040f tx timeout

WARNING: CPU: 1 PID: 18374 at kernel/workqueue.c:1438 __queue_work+0xdad/0x1140

Workqueue: events hci_cmd_timeout

RIP: 0010:__queue_work+0xdad/0x1140

RSP: 0000:ffffc90002cffc60 EFLAGS: 00010093

RAX: 0000000000000000 RBX: ffff8880b9d3ec00 RCX: 0000000000000000

RDX: ffff888024ba0000 RSI: ffffffff814e048d RDI: ffff8880b9d3ec08

RBP: 0000000000000008 R08: 0000000000000000 R09: 00000000b9d39700

R10: ffffffff814f73c6 R11: 0000000000000000 R12: ffff88807cce4c60

R13: 0000000000000000 R14: ffff8880796d8800 R15: ffff8880

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/3b382555706558f5c0587862b6dc03e96a252bbaRefgit.kernel.org/stable/c/4bf367fa1fefabdf14938d0ac9ed60020389112eRefgit.kernel.org/stable/c/877afadad2dce8aae1f2aad8ce47e072d4f6165e

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50166?

CVE-2022-50166 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50166?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50166?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-50166?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50166 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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