ghsa-fxx6-99pg-x743
Vulnerability from github
Published
2024-03-25 09:32
Modified
2025-03-13 21:31
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:

net/smc: remove device from smcd_dev_list after failed device_add()

If the device_add() for a smcd_dev fails, there's no cleanup step that rolls back the earlier list_add(). The device subsequently gets freed, and we end up with a corrupted list.

Add some error handling that removes the device from the list.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47143"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-459"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-25T09:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: remove device from smcd_dev_list after failed device_add()\n\nIf the device_add() for a smcd_dev fails, there\u0027s no cleanup step that\nrolls back the earlier list_add(). The device subsequently gets freed,\nand we end up with a corrupted list.\n\nAdd some error handling that removes the device from the list.",
  "id": "GHSA-fxx6-99pg-x743",
  "modified": "2025-03-13T21:31:01Z",
  "published": "2024-03-25T09:32:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47143"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897"
    }
  ],
  "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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