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CVE-2022-50481

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_register() fails in cxl_register_afu|adapter(), the…

Published Oct 4, 2025CWE-476EPSS 0.16%

Overview

CVE-2022-50481 is a medium-severity vulnerability. It was published on October 4, 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:

cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()

If device_register() fails in cxl_register_afu|adapter(), the device

is not added, device_unregister() can not be called in the error path,

otherwise it will cause a null-ptr-deref because of removing not added

device.

As comment of device_register() says, it should use put_device() to give

up the reference in the error path. So split device_unregister() into

device_del() and put_device(), then goes to put dev when register fails.

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/170e8c2d2b61e15e7f7cfeded81bc1e959a15ed8Refgit.kernel.org/stable/c/1ae581696b7a799afa39a664c4b721569643f58aRefgit.kernel.org/stable/c/60b2ed21a65f3f5318666ccd765c3507991370cfRefgit.kernel.org/stable/c/61c80d1c3833e196256fb060382db94f24d3d9a7Refgit.kernel.org/stable/c/96fba6fb95bdede80583c262ac185da09661f264Refgit.kernel.org/stable/c/ab44c182353be101c3be9465e1d15d42130c53c4Refgit.kernel.org/stable/c/b32559ee4e6667c5c3daf4ec5454c277d1f255d2Refgit.kernel.org/stable/c/d775a1da5a52b4f4bb02f2707ba420d1bec48dbbRefgit.kernel.org/stable/c/e5021bbf11b024cc65ea1e84c377df484183be4b

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50481?

CVE-2022-50481 is a medium-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50481?

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-2022-50481?

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-2022-50481?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50481 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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