ghsa-qrpf-5jf3-p6pw
Vulnerability from github
Published
2024-03-18 12:30
Modified
2024-06-27 12:30
Details

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

pstore/ram: Fix crash when setting number of cpus to an odd number

When the number of cpu cores is adjusted to 7 or other odd numbers, the zone size will become an odd number. The address of the zone will become: addr of zone0 = BASE addr of zone1 = BASE + zone_size addr of zone2 = BASE + zone_size*2 ... The address of zone1/3/5/7 will be mapped to non-alignment va. Eventually crashes will occur when accessing these va.

So, use ALIGN_DOWN() to make sure the zone size is even to avoid this bug.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52619"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-18T11:15:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npstore/ram: Fix crash when setting number of cpus to an odd number\n\nWhen the number of cpu cores is adjusted to 7 or other odd numbers,\nthe zone size will become an odd number.\nThe address of the zone will become:\n    addr of zone0 = BASE\n    addr of zone1 = BASE + zone_size\n    addr of zone2 = BASE + zone_size*2\n    ...\nThe address of zone1/3/5/7 will be mapped to non-alignment va.\nEventually crashes will occur when accessing these va.\n\nSo, use ALIGN_DOWN() to make sure the zone size is even\nto avoid this bug.",
  "id": "GHSA-qrpf-5jf3-p6pw",
  "modified": "2024-06-27T12:30:44Z",
  "published": "2024-03-18T12:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52619"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0593cfd321df9001142a9d2c58d4144917dff7ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a37905d47bffec61e95d99f0c1cc5dc6377956c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75b0f71b26b3ad833c5c0670109c0af6e021e86a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b69c30f4e8b69131d92096cb296dc1f217101e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a63e48cd835c34c38ef671d344cc029b1ea5bf10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd40e43f870cf21726b22487a95ed223790b3542"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d49270a04623ce3c0afddbf3e984cb245aa48e9c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9f6ac50890104fdf8194f2865680689239d30fb"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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