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CVE-2021-47020

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: soundwire: stream: fix memory leak in stream config error path When stream config is failed, master runtime will release all sl…

Published Feb 29, 2024CWE-401EPSS 0.23%

Overview

CVE-2021-47020 is a medium-severity vulnerability. It was published on February 29, 2024 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:

soundwire: stream: fix memory leak in stream config error path

When stream config is failed, master runtime will release all

slave runtime in the slave_rt_list, but slave runtime is not

added to the list at this time. This patch frees slave runtime

in the config error path to fix the memory leak.

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/2f17ac005b320c85d686088cfd4c2e7017912b88Refgit.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80Refgit.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359fRefgit.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159aRefgit.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002Refgit.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdeaRefgit.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88Refgit.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80Refgit.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359fRefgit.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47020?

CVE-2021-47020 is a medium-severity vulnerability. It was published on February 29, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47020?

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-2021-47020?

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-2021-47020?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47020 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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