ghsa-c6g8-rch8-xjjv
Vulnerability from github
Published
2024-12-02 15:31
Modified
2024-12-12 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()

The "arg->vec_len" variable is a u64 that comes from the user at the start of the function. The "arg->vec_len * sizeof(struct page_region))" multiplication can lead to integer wrapping. Use size_mul() to avoid that.

Also the size_add/mul() functions work on unsigned long so for 32bit systems we need to ensure that "arg->vec_len" fits in an unsigned long.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53107"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-02T14:15:11Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()\n\nThe \"arg-\u003evec_len\" variable is a u64 that comes from the user at the start\nof the function.  The \"arg-\u003evec_len * sizeof(struct page_region))\"\nmultiplication can lead to integer wrapping.  Use size_mul() to avoid\nthat.\n\nAlso the size_add/mul() functions work on unsigned long so for 32bit\nsystems we need to ensure that \"arg-\u003evec_len\" fits in an unsigned long.",
  "id": "GHSA-c6g8-rch8-xjjv",
  "modified": "2024-12-12T18:30:54Z",
  "published": "2024-12-02T15:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53107"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/669b0cb81e4e4e78cff77a5b367c7f70c0c6c05e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/adee03f8903c58a6a559f21388a430211fac8ce9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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