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CVE-2022-49389

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc().

Published Feb 26, 2025EPSS 0.29%

Overview

CVE-2022-49389 is a medium-severity vulnerability. It was published on February 26, 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:

usb: usbip: fix a refcount leak in stub_probe()

usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails

after that, usb_put_dev() needs to be called to release the reference.

Fix this by moving usb_put_dev() to sdev_free error path handling.

Find this by code review.

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/11c65408bd0ba1d9cd1307caa38169292de9cdfbRefgit.kernel.org/stable/c/247d3809e45a34d9e1a3a2bb7012e31ed8b46031Refgit.kernel.org/stable/c/2f0ae93ec33c8456cdfbf7876b80403a6318ebceRefgit.kernel.org/stable/c/51422046be504515eb5a591adf0f424b62f46804Refgit.kernel.org/stable/c/6bafee2f18af5e5ac125e42960bc65496d0e56a0Refgit.kernel.org/stable/c/8afb048800919d0ab10c57983940eba956339f21Refgit.kernel.org/stable/c/9ec4cbf1cc55d126759051acfe328d489c5d6e60Refgit.kernel.org/stable/c/bcbb795a9e78180d74c6ab21518da87e803dfdceRefgit.kernel.org/stable/c/f20d2d3b3364ce6525c050a8b6b4c54c8c19674d

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49389?

CVE-2022-49389 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49389?

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-2022-49389?

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-2022-49389?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49389 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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