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CVE-2024-26912

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix several DMA buffer leaks Nouveau manages GSP-RM DMA buffers with nvkm_gsp_mem objects.

Published Apr 17, 2024CWE-401EPSS 0.19%

Overview

CVE-2024-26912 is a medium-severity vulnerability. It was published on April 17, 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:

drm/nouveau: fix several DMA buffer leaks

Nouveau manages GSP-RM DMA buffers with nvkm_gsp_mem objects. Several of

these buffers are never dealloced. Some of them can be deallocated

right after GSP-RM is initialized, but the rest need to stay until the

driver unloads.

Also futher bullet-proof these objects by poisoning the buffer and

clearing the nvkm_gsp_mem object when it is deallocated. Poisoning

the buffer should trigger an error (or crash) from GSP-RM if it tries

to access the buffer after we've deallocated it, because we were wrong

about when it is safe to deallocate.

Finally, change the mem->size field to a size_t because that's the same

type that dma_alloc_coherent expects.

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/042b5f83841fbf7ce39474412db3b5e4765a7ea7Refgit.kernel.org/stable/c/6190d4c08897d748dd25f0b78267a90aa1694e15Refgit.kernel.org/stable/c/042b5f83841fbf7ce39474412db3b5e4765a7ea7Refgit.kernel.org/stable/c/6190d4c08897d748dd25f0b78267a90aa1694e15

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26912?

CVE-2024-26912 is a medium-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26912?

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-2024-26912?

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-2024-26912?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26912 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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