ghsa-4v89-q9h7-p6vx
Vulnerability from github
Published
2024-05-22 09:31
Modified
2025-09-24 21:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

comedi: vmk80xx: fix bulk-buffer overflow

The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47474"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-22T09:15:09Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: vmk80xx: fix bulk-buffer overflow\n\nThe driver is using endpoint-sized buffers but must not assume that the\ntx and rx buffers are of equal size or a malicious device could overflow\nthe slab-allocated receive buffer when doing bulk transfers.",
  "id": "GHSA-4v89-q9h7-p6vx",
  "modified": "2025-09-24T21:30:30Z",
  "published": "2024-05-22T09:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47474"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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