{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-31661",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-31661"
  ],
  "published": "2026-04-24T14:47:31Z",
  "summary": "wifi: brcmsmac: Fix dma_free_coherent() size",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmsmac: Fix dma_free_coherent() size\n\ndma_alloc_consistent() may change the size to align it. The new size is\nsaved in alloced.\n\nChange the free size to match the allocation size.",
  "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": "6.1.169",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31661"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f449676bab54fea1440775c8c915dadb323fe015"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3c204a0fd079fa7a867151a47d830ad1c2db5177"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0f87777b74bcce29b966ec42d9aa8f9edd9b1667"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4bf41c2731a0549e21f66180ff780b1e036639ab"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/77263f053963dea9f3962505ac0c768853d7dc59"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b27fa888e4a426a3bcf6f6ab24701d888d9bf5aa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/01f1330d3d1bee07e0c42d40cc48b7be8b6dad84"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/12cd7632757a54ce586e36040210b1a738a0fc53"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}