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CVE-2022-49896

5.5 · MEDIUM
Published May 1, 2025 linux EPSS 0.16% (5th pctl)

Overview

CVE-2022-49896 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 1, 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/pmem: Fix cxl_pmem_region and cxl_memdev leak

When a cxl_nvdimm object goes through a ->remove() event (device

physically removed, nvdimm-bridge disabled, or nvdimm device disabled),

then any associated regions must also be disabled. As highlighted by the

cxl-create-region.sh test [1], a single device may host multiple

regions, but the driver was only tracking one region at a time. This

leads to a situation where only the last enabled region per nvdimm

device is cleaned up properly. Other regions are leaked, and this also

causes cxl_memdev reference leaks.

Fix the tracking by allowing cxl_nvdimm objects to track multiple region

associations.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 6.0, < 6.0.8 Affected

Frequently Asked Questions

What is CVE-2022-49896?

CVE-2022-49896 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49896?

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-2022-49896?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2022-49896?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-49896 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.