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CVE-2022-50386

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent…

Published Sep 18, 2025CWE-416EPSS 0.36%

Overview

CVE-2022-50386 is a high-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

Bluetooth: L2CAP: Fix user-after-free

This uses l2cap_chan_hold_unless_zero() after calling

__l2cap_get_chan_blah() to prevent the following trace:

Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref

*kref)

Bluetooth: chan 0000000023c4974d

Bluetooth: parent 00000000ae861c08

==================================================================

BUG: KASAN: use-after-free in __mutex_waiter_is_first

kernel/locking/mutex.c:191 [inline]

BUG: KASAN: use-after-free in __mutex_lock_common

kernel/locking/mutex.c:671 [inline]

BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400

kernel/locking/mutex.c:729

Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389

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/0c108cf3ad386e0084277093b55a351c49e0be27Refgit.kernel.org/stable/c/11e40d6c0823f699d8ad501e48d1c3ae4be386cdRefgit.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952dRefgit.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4fRefgit.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84fRefgit.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45Refgit.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364Refgit.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810eRefgit.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50386?

CVE-2022-50386 is a high-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-50386?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-50386?

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-2022-50386?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50386 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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