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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2025-22049

LoongArch: Increase ARCH_DMA_MINALIGN up to 16

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • fa96b57c149061f71a70bd6582d995f6424fbbf4 to < f39af67f03b564b763b06e44cb960c10a382d54aaffected
  • fa96b57c149061f71a70bd6582d995f6424fbbf4 to < 279ec25c2df49fba1cd9488f2ddd045d9cb2112eaffected
  • fa96b57c149061f71a70bd6582d995f6424fbbf4 to < 1d0def2d1658666ec1f32c9495df60e7411e3c82affected
  • fa96b57c149061f71a70bd6582d995f6424fbbf4 to < bfff341cac7c650e6ca8d10503725992f5564d0faffected
  • fa96b57c149061f71a70bd6582d995f6424fbbf4 to < 8b82aea3666f8f2c78f86148d78aea99c46e0f82affected
  • fa96b57c149061f71a70bd6582d995f6424fbbf4 to < 4103cfe9dcb88010ae4911d3ff417457d1b6a720affected

Linux Linux

Default version status: affected

  • 5.19affected
  • 0 to < 5.19unaffected
  • 6.1.134 to ≤ 6.1.*unaffected
  • 6.6.87 to ≤ 6.6.*unaffected
  • 6.12.23 to ≤ 6.12.*unaffected
  • 6.13.11 to ≤ 6.13.*unaffected
  • 6.14.2 to ≤ 6.14.*unaffected
  • 6.15 to ≤ *unaffected

References