{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98157",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-98157"
  ],
  "published": "2026-09-25T10:36:36Z",
  "summary": "EDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/device_sysfs: Use kstrtouint() for poll_msec to prevent truncation\n\nThe poll_msec sysfs store file uses simple_strtoul() which accepts an unsigned\nlong, but the target field (poll_msec) is unsigned int. On 64-bit systems,\na value > UINT_MAX is silently truncated when stored.\n\nFix the mismatch by using kstrtouint() instead. This rejects values larger\nthan UINT_MAX at parse time, making truncation impossible. Also add a check\nfor value < 1 to reject the 0-delay case, which would cause the poll work to\nspin without delay and consume 100% CPU.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98157"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a60794ee3f453516ab3ed212ba0295ecf890bc8c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f856511058c8cb470d6c6c7ce908870adcdc7dc6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/656e2fe98ac452db4e5b8147d1f33b8c35b4ec4b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/541fc6f733b32463cf23277637bb07e2aaa00b53"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ea01c061d839b520f385f112908de1c6e3391327"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/528052af901d6e6bbfa0e52362a70a58a5dd1e43"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0e022ee4f8e0dc843ba4c80bb75408a7704279af"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/66cc9dec919dd63d8e4b3d386f7aed3ae684e645"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}