{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-22049",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-22049"
  ],
  "published": "2025-04-16T14:14:59Z",
  "summary": "LoongArch: Increase ARCH_DMA_MINALIGN up to 16",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Increase ARCH_DMA_MINALIGN up to 16\n\nARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices\n(such as APBDMA) require 16 bytes alignment. When the data buffer length\nis too small, the hardware may make an error writing cacheline. Thus, it\nis dangerous to allocate a small memory buffer for DMA. It's always safe\nto define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc()\nneed small memory objects). Therefore, just increase it to 16.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.134",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-22049"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1d0def2d1658666ec1f32c9495df60e7411e3c82"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}