fkie_cve-2022-50165
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:47
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/409bd72e544fdf4809ea0dac337bb5a1f11a25a9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/52b11a48cf073e0aab923ae809a765d756cecf13
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/689e5caf63e99e15d2f485ec297c1bf9243e0e28
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6c5fee83bdbeffe8d607d1ab125122a75f40bd1a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b13c84e877d7a3095bacb14665db304b2c00e95f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9fde3a44da566d8929070ab6bda4f0dfa9955d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d4742c886043b69d2d058bfde3998ef333b66595
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d578e0af3a003736f6c440188b156483d451b329
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: wil6210: debugfs: se corrige el uso de variables no inicializadas en `wil_write_file_wmi()`. El commit 7a4836560a61 cambia `simple_write_to_buffer()` por `memdup_user()`, pero olvida cambiar el valor devuelto que proviene de la llamada `simple_write_to_buffer()`. Esto genera la siguiente advertencia: `advertencia: la variable `rc\u0027 no est\u00e1 inicializada cuando se usa aqu\u00ed` [-Wuninitialized] return rc; ^~ Se elimina la variable `rc` y se devuelve solo la longitud introducida si `memdup_user()` se ejecuta correctamente."
    }
  ],
  "id": "CVE-2022-50165",
  "lastModified": "2025-06-18T13:47:40.833",
  "metrics": {},
  "published": "2025-06-18T11:15:46.790",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/409bd72e544fdf4809ea0dac337bb5a1f11a25a9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/52b11a48cf073e0aab923ae809a765d756cecf13"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/689e5caf63e99e15d2f485ec297c1bf9243e0e28"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6c5fee83bdbeffe8d607d1ab125122a75f40bd1a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b13c84e877d7a3095bacb14665db304b2c00e95f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9fde3a44da566d8929070ab6bda4f0dfa9955d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d4742c886043b69d2d058bfde3998ef333b66595"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d578e0af3a003736f6c440188b156483d451b329"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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