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CVE-2025-22049

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Increase ARCH_DMA_MINALIGN up to 16 ARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices (such as…

Published Apr 16, 2025EPSS 0.21%

Overview

CVE-2025-22049 is a high-severity vulnerability. It was published on April 16, 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:

LoongArch: Increase ARCH_DMA_MINALIGN up to 16

ARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices

(such as APBDMA) require 16 bytes alignment. When the data buffer length

is too small, the hardware may make an error writing cacheline. Thus, it

is dangerous to allocate a small memory buffer for DMA. It's always safe

to define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc()

need small memory objects). Therefore, just increase it to 16.

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/1d0def2d1658666ec1f32c9495df60e7411e3c82Refgit.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112eRefgit.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720Refgit.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82Refgit.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0fRefgit.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54aReflists.debian.org/debian-lts-announce/2025/05/msg00045.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-22049?

CVE-2025-22049 is a high-severity vulnerability. It was published on April 16, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-22049?

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-2025-22049?

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-2025-22049?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-22049 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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