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CVE-2022-49500

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wl1251: dynamically allocate memory used for DMA With introduction of vmap'ed stacks, stack parameters can no longer be used fo…

Published Feb 26, 2025EPSS 0.27%

Overview

CVE-2022-49500 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:

wl1251: dynamically allocate memory used for DMA

With introduction of vmap'ed stacks, stack parameters can no

longer be used for DMA and now leads to kernel panic.

It happens at several places for the wl1251 (e.g. when

accessed through SDIO) making it unuseable on e.g. the

OpenPandora.

We solve this by allocating temporary buffers or use wl1251_read32().

Tested on v5.18-rc5 with OpenPandora.

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/454744754cbf2c21b3fc7344e46e10bee2768094Refgit.kernel.org/stable/c/da03bbfbf5acd1ab0b074617e865ad1e8a5779ef

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49500?

CVE-2022-49500 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-2022-49500?

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-2022-49500?

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-2022-49500?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49500 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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