{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-37850",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-37850"
  ],
  "published": "2025-05-09T06:42:43Z",
  "summary": "pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config()\n\nWith CONFIG_COMPILE_TEST && !CONFIG_HAVE_CLK, pwm_mediatek_config() has a\ndivide-by-zero in the following line:\n\n\tdo_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm]));\n\ndue to the fact that the !CONFIG_HAVE_CLK version of clk_get_rate()\nreturns zero.\n\nThis is presumably just a theoretical problem: COMPILE_TEST overrides\nthe dependency on RALINK which would select COMMON_CLK.  Regardless it's\na good idea to check for the error explicitly to avoid divide-by-zero.\n\nFixes the following warning:\n\n  drivers/pwm/pwm-mediatek.o: warning: objtool: .text: unexpected end of section\n\n[ukleinek: s/CONFIG_CLK/CONFIG_HAVE_CLK/]",
  "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": "6.1.135",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-37850"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8b9f60725d74b72c238e4437c957d0217746b506"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e1206d8e1651c9f62e5640b69b14d925b1a0a00a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f3e9cf266c2c103cf071e15d7a17e2c699fff3c5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8ddbec73ea2598d8414e8f7103241b55cf877010"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4cb15042b5f3ec0474e91cf379120cc597625dbb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c343856ff2689ce0afef823592732fc178ef4aac"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/77fb96dbe350e8a5ae4965ff9f6e7049f3966a6b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7ca59947b5fcf94e7ea4029d1bd0f7c41500a161"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}