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CVE-2022-49493

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ASoC: rt5645: Fix errorenous cleanup order There is a logic error when removing rt5645 device as the function rt5645_i2c_remove…

Published Feb 26, 2025CWE-416EPSS 0.27%

Overview

CVE-2022-49493 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

ASoC: rt5645: Fix errorenous cleanup order

There is a logic error when removing rt5645 device as the function

rt5645_i2c_remove() first cancel the &rt5645->jack_detect_work and

delete the &rt5645->btn_check_timer latter. However, since the timer

handler rt5645_btn_check_callback() will re-queue the jack_detect_work,

this cleanup order is buggy.

That is, once the del_timer_sync in rt5645_i2c_remove is concurrently

run with the rt5645_btn_check_callback, the canceled jack_detect_work

will be rescheduled again, leading to possible use-after-free.

This patch fix the issue by placing the del_timer_sync function before

the cancel_delayed_work_sync.

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/061a6159cea583f1155f67d1915917a6b9282662Refgit.kernel.org/stable/c/0941150100173d4eaf3fe08ff4b16740e7c3026fRefgit.kernel.org/stable/c/1a5a3dfd9f172dcb115072f0aea5e27d3083c20eRefgit.kernel.org/stable/c/236d29c5857f02e0a53fdf15d3dce1536c4322ceRefgit.kernel.org/stable/c/2def44d3aec59e38d2701c568d65540783f90f2fRefgit.kernel.org/stable/c/453f0920ffc1a28e28ddb9c3cd5562472b2895b0Refgit.kernel.org/stable/c/88c09e4812d72c3153afc8e5a45ecac2d0eae3ffRefgit.kernel.org/stable/c/abe7554da62cb489712a54de69ef5665c250e564

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49493?

CVE-2022-49493 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49493?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49493?

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-2022-49493?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49493 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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