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CVE-2025-21842

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: amdkfd: properly free gang_ctx_bo when failed to init user queue The destructor of a gtt bo is declared as void amdgpu_amdkfd_f…

Published Mar 7, 2025EPSS 0.24%

Overview

CVE-2025-21842 is a high-severity vulnerability. It was published on March 7, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

amdkfd: properly free gang_ctx_bo when failed to init user queue

The destructor of a gtt bo is declared as

void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void **mem_obj);

Which takes void** as the second parameter.

GCC allows passing void* to the function because void* can be implicitly

casted to any other types, so it can pass compiling.

However, passing this void* parameter into the function's

execution process(which expects void** and dereferencing void**)

will result in errors.

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/091a68c58c1bbd2ab7d05d1b32c1306394ec691dRefgit.kernel.org/stable/c/a33f7f9660705fb2ecf3467b2c48965564f392ceRefgit.kernel.org/stable/c/ae5ab1c1ae504f622cc1ff48830a9ed48428146d

How CyberStrike helps

Frequently asked questions

What is CVE-2025-21842?

CVE-2025-21842 is a high-severity vulnerability. It was published on March 7, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-21842?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-21842?

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-2025-21842?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-21842 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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