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CVE-2022-49111

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use after free in hci_send_acl This fixes the following trace caused by receiving HCI_EV_DISCONN_PHY_LINK_COMPLE…

Published Feb 26, 2025CWE-416EPSS 0.34%

Overview

CVE-2022-49111 is a high-severity vulnerability. It was published on February 26, 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: Fix use after free in hci_send_acl

This fixes the following trace caused by receiving

HCI_EV_DISCONN_PHY_LINK_COMPLETE which does call hci_conn_del without

first checking if conn->type is in fact AMP_LINK and in case it is

do properly cleanup upper layers with hci_disconn_cfm:

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

BUG: KASAN: use-after-free in hci_send_acl+0xaba/0xc50

Read of size 8 at addr ffff88800e404818 by task bluetoothd/142

CPU: 0 PID: 142 Comm: bluetoothd Not tainted

5.17.0-rc5-00006-gda4022eeac1a #7

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS

rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014

Call Trace:

<TASK>

dump_stack_lvl+0x45/0x59

print_address_description.constprop.0+0x1f/0x150

kasan_report.cold+0x7f/0x11b

hci_send_acl+0xaba/0xc50

l2cap_do_send+0x23f/0x3d0

l2cap_chan_send+0xc06/

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/2cc803804ec9a296b3156855d6c8c4ca1c6b84beRefgit.kernel.org/stable/c/3803d896ddd97c7c16689a5381c0960040727647Refgit.kernel.org/stable/c/4da302b90b96c309987eb9b37c8547f939f042d2Refgit.kernel.org/stable/c/643a6c26bd32e339d00ad97b8822b6db009e803cRefgit.kernel.org/stable/c/684e505406abaeabe0058e9776f9210bf2747953Refgit.kernel.org/stable/c/b3c2ea1fd444b3bb7b82bfd2c3a45418f85c2502Refgit.kernel.org/stable/c/c41de54b0a963e59e4dd04c029a4a6d73f45ef9cRefgit.kernel.org/stable/c/d404765dffdbd8dcd14758695d0c96c52fb2e624Refgit.kernel.org/stable/c/f63d24baff787e13b723d86fe036f84bdbc35045

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49111?

CVE-2022-49111 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2022-49111?

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-2022-49111?

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-2022-49111?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49111 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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