GHSA-Q529-WQG7-HJ25

Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-17 21:31
VLAI
Details

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

wifi: wil6210: debugfs: fix uninitialized variable use in wil_write_file_wmi()

Commit 7a4836560a61 changes simple_write_to_buffer() with memdup_user() but it forgets to change the value to be returned that came from simple_write_to_buffer() call. It results in the following warning:

warning: variable 'rc' is uninitialized when used here [-Wuninitialized] return rc; ^~

Remove rc variable and just return the passed in length if the memdup_user() succeeds.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-50165"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:46Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()`\n\nCommit 7a4836560a61 changes simple_write_to_buffer() with memdup_user()\nbut it forgets to change the value to be returned that came from\nsimple_write_to_buffer() call. It results in the following warning:\n\n  warning: variable \u0027rc\u0027 is uninitialized when used here [-Wuninitialized]\n           return rc;\n                  ^~\n\nRemove rc variable and just return the passed in length if the\nmemdup_user() succeeds.",
  "id": "GHSA-q529-wqg7-hj25",
  "modified": "2025-11-17T21:31:18Z",
  "published": "2025-06-18T12:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50165"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/409bd72e544fdf4809ea0dac337bb5a1f11a25a9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52b11a48cf073e0aab923ae809a765d756cecf13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/689e5caf63e99e15d2f485ec297c1bf9243e0e28"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c5fee83bdbeffe8d607d1ab125122a75f40bd1a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b13c84e877d7a3095bacb14665db304b2c00e95f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9fde3a44da566d8929070ab6bda4f0dfa9955d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4742c886043b69d2d058bfde3998ef333b66595"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d578e0af3a003736f6c440188b156483d451b329"
    }
  ],
  "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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