ghsa-pv98-48f2-5vjr
Vulnerability from github
Published
2024-03-03 00:30
Modified
2024-08-14 15:31
Details

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

mm: huge_memory: don't force huge page alignment on 32 bit

commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") caused two issues [1] [2] reported on 32 bit system or compat userspace.

It doesn't make too much sense to force huge page alignment on 32 bit system due to the constrained virtual address space.

[1] https://lore.kernel.org/linux-mm/d0a136a0-4a31-46bc-adf4-2db109a61672@kernel.org/ [2] https://lore.kernel.org/linux-mm/CAJuCfpHXLdQy1a2B6xN2d7quTYwg2OoZseYPZTRpU0eHHKD-sQ@mail.gmail.com/

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26621"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-02T22:15:50Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: huge_memory: don\u0027t force huge page alignment on 32 bit\n\ncommit efa7df3e3bb5 (\"mm: align larger anonymous mappings on THP\nboundaries\") caused two issues [1] [2] reported on 32 bit system or compat\nuserspace.\n\nIt doesn\u0027t make too much sense to force huge page alignment on 32 bit\nsystem due to the constrained virtual address space.\n\n[1] https://lore.kernel.org/linux-mm/d0a136a0-4a31-46bc-adf4-2db109a61672@kernel.org/\n[2] https://lore.kernel.org/linux-mm/CAJuCfpHXLdQy1a2B6xN2d7quTYwg2OoZseYPZTRpU0eHHKD-sQ@mail.gmail.com/",
  "id": "GHSA-pv98-48f2-5vjr",
  "modified": "2024-08-14T15:31:11Z",
  "published": "2024-03-03T00:30:32Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26621"
    },
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      "url": "https://git.kernel.org/stable/c/4ef9ad19e17676b9ef071309bc62020e2373705d"
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    },
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      "url": "https://git.kernel.org/stable/c/87632bc9ecff5ded93433bc0fca428019bdd1cfe"
    },
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      "url": "https://zolutal.github.io/aslrnt"
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  ],
  "schema_version": "1.4.0",
  "severity": []
}


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