ghsa-8vm3-pfrg-f6xg
Vulnerability from github
Published
2025-01-11 15:30
Modified
2025-01-11 15:30
Details

In the Linux kernel, the following vulnerability has been resolved:

mm: use aligned address in copy_user_gigantic_page()

In current kernel, hugetlb_wp() calls copy_user_large_folio() with the fault address. Where the fault address may be not aligned with the huge page size. Then, copy_user_large_folio() may call copy_user_gigantic_page() with the address, while copy_user_gigantic_page() requires the address to be huge page size aligned. So, this may cause memory corruption or information leak, addtional, use more obvious naming 'addr_hint' instead of 'addr' for copy_user_gigantic_page().

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{
  "affected": [],
  "aliases": [
    "CVE-2024-51729"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-11T13:15:24Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: use aligned address in copy_user_gigantic_page()\n\nIn current kernel, hugetlb_wp() calls copy_user_large_folio() with the\nfault address.  Where the fault address may be not aligned with the huge\npage size.  Then, copy_user_large_folio() may call\ncopy_user_gigantic_page() with the address, while\ncopy_user_gigantic_page() requires the address to be huge page size\naligned.  So, this may cause memory corruption or information leak,\naddtional, use more obvious naming \u0027addr_hint\u0027 instead of \u0027addr\u0027 for\ncopy_user_gigantic_page().",
  "id": "GHSA-8vm3-pfrg-f6xg",
  "modified": "2025-01-11T15:30:28Z",
  "published": "2025-01-11T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-51729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb12d61361ce769672c7c7bd32107252598cdd8b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5d09de9f1bf9674c6418ff10d0a40cfe29268e1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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