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.

Reserved 2024-12-29 | Published 2025-04-16 | Updated 2025-05-26 | Assigner Linux

Product status

Default status
unaffected

fa96b57c149061f71a70bd6582d995f6424fbbf4 before f39af67f03b564b763b06e44cb960c10a382d54a
affected

fa96b57c149061f71a70bd6582d995f6424fbbf4 before 279ec25c2df49fba1cd9488f2ddd045d9cb2112e
affected

fa96b57c149061f71a70bd6582d995f6424fbbf4 before 1d0def2d1658666ec1f32c9495df60e7411e3c82
affected

fa96b57c149061f71a70bd6582d995f6424fbbf4 before bfff341cac7c650e6ca8d10503725992f5564d0f
affected

fa96b57c149061f71a70bd6582d995f6424fbbf4 before 8b82aea3666f8f2c78f86148d78aea99c46e0f82
affected

fa96b57c149061f71a70bd6582d995f6424fbbf4 before 4103cfe9dcb88010ae4911d3ff417457d1b6a720
affected

Default status
affected

5.19
affected

Any version before 5.19
unaffected

6.1.134
unaffected

6.6.87
unaffected

6.12.23
unaffected

6.13.11
unaffected

6.14.2
unaffected

6.15
unaffected

References

git.kernel.org/...c/f39af67f03b564b763b06e44cb960c10a382d54a

git.kernel.org/...c/279ec25c2df49fba1cd9488f2ddd045d9cb2112e

git.kernel.org/...c/1d0def2d1658666ec1f32c9495df60e7411e3c82

git.kernel.org/...c/bfff341cac7c650e6ca8d10503725992f5564d0f

git.kernel.org/...c/8b82aea3666f8f2c78f86148d78aea99c46e0f82

git.kernel.org/...c/4103cfe9dcb88010ae4911d3ff417457d1b6a720

cve.org (CVE-2025-22049)

nvd.nist.gov (CVE-2025-22049)

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