{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-53015",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-53015"
  ],
  "published": "2026-06-24T16:31:02Z",
  "summary": "erofs: unify lcn as u64 for 32-bit platforms",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: unify lcn as u64 for 32-bit platforms\n\nAs sashiko reported [1], `lcn` was typed as `unsigned long` (or\n`unsigned int` sometimes), which is only 32 bits wide on 32-bit\nplatforms, which causes `(lcn << lclusterbits)` to be truncated\nat 4 GiB.\n\nIn order to consolidate the logic, just use `u64` consistently\naround the codebase.\n\n[1] https://sashiko.dev/r/20260420034612.1899973-1-hsiangkao%40linux.alibaba.com",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-53015"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4fc9b12e43a3f19a01a8fb61f7961be79de20253"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/858e4d98a86adf34584767388deb6c9b217f70c5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/582b0bf201157632cb5474c885989a6ebda46521"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2d8c7edcb661812249469f4a5b62e9339118846f"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-24T16:31:02Z"
  }
}