Medium severity5.5NVD Advisory· Published Apr 16, 2025· Updated Jun 17, 2026
CVE-2025-22049
CVE-2025-22049
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/1d0def2d1658666ec1f32c9495df60e7411e3c82nvdPatch
- git.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112envdPatch
- git.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720nvdPatch
- git.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82nvdPatch
- git.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0fnvdPatch
- git.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54anvdPatch
- lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlnvd
News mentions
0No linked articles in our index yet.