CVE-2022-49836 (GCVE-0-2022-49836)
Vulnerability from cvelistv5
Published
2025-05-01 14:09
Modified
2025-05-04 08:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: siox: fix possible memory leak in siox_device_add() If device_register() returns error in siox_device_add(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(), and sdevice is freed in siox_device_release(), set it to null in error path.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0a5da069603ecc3d7aa09167450235462adaa295
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5d03c2911c529ea4d6ebfec53425f1091e8d402b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6e63153db50059fb78b8a8447b132664887d24e3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4b5423f88a17a36550ae8c16c46779b1ee42f4b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9c31e728843259209fb530c59995e4fe262699f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f9fe7ba4ea5b24ffdf8e125f660aca3ba4a147fb
Impacted products
Vendor Product Version
Linux Linux Version: bbecb07fa0af9a41507ce06d4631fdb3b5059417
Version: bbecb07fa0af9a41507ce06d4631fdb3b5059417
Version: bbecb07fa0af9a41507ce06d4631fdb3b5059417
Version: bbecb07fa0af9a41507ce06d4631fdb3b5059417
Version: bbecb07fa0af9a41507ce06d4631fdb3b5059417
Version: bbecb07fa0af9a41507ce06d4631fdb3b5059417
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   Linux Linux Version: 4.16
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{
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/siox/siox-core.c"
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsiox: fix possible memory leak in siox_device_add()\n\nIf device_register() returns error in siox_device_add(),\nthe name allocated by dev_set_name() need be freed. As\ncomment of device_register() says, it should use put_device()\nto give up the reference in the error path. So fix this\nby calling put_device(), then the name can be freed in\nkobject_cleanup(), and sdevice is freed in siox_device_release(),\nset it to null in error path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:46:33.471Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0a5da069603ecc3d7aa09167450235462adaa295"
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        {
          "url": "https://git.kernel.org/stable/c/f9fe7ba4ea5b24ffdf8e125f660aca3ba4a147fb"
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        {
          "url": "https://git.kernel.org/stable/c/a4b5423f88a17a36550ae8c16c46779b1ee42f4b"
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          "url": "https://git.kernel.org/stable/c/5d03c2911c529ea4d6ebfec53425f1091e8d402b"
        },
        {
          "url": "https://git.kernel.org/stable/c/d9c31e728843259209fb530c59995e4fe262699f"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e63153db50059fb78b8a8447b132664887d24e3"
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      ],
      "title": "siox: fix possible memory leak in siox_device_add()",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49836",
    "datePublished": "2025-05-01T14:09:53.454Z",
    "dateReserved": "2025-05-01T14:05:17.229Z",
    "dateUpdated": "2025-05-04T08:46:33.471Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49836\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:07.087\",\"lastModified\":\"2025-05-02T13:53:20.943\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsiox: fix possible memory leak in siox_device_add()\\n\\nIf device_register() returns error in siox_device_add(),\\nthe name allocated by dev_set_name() need be freed. As\\ncomment of device_register() says, it should use put_device()\\nto give up the reference in the error path. So fix this\\nby calling put_device(), then the name can be freed in\\nkobject_cleanup(), and sdevice is freed in siox_device_release(),\\nset it to null in error path.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: siox: Se corrige una posible fuga de memoria en siox_device_add(). Si device_register() devuelve un error en siox_device_add(), se debe liberar el nombre asignado por dev_set_name(). Como se indica en el comentario de device_register(), se debe usar put_device() para liberar la referencia en la ruta de error. Para solucionar esto, se debe llamar a put_device(); de esta manera, se puede liberar el nombre en kobject_cleanup() y sdevice se libera en siox_device_release(); config\u00farelo como nulo en la ruta de error.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0a5da069603ecc3d7aa09167450235462adaa295\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5d03c2911c529ea4d6ebfec53425f1091e8d402b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6e63153db50059fb78b8a8447b132664887d24e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4b5423f88a17a36550ae8c16c46779b1ee42f4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d9c31e728843259209fb530c59995e4fe262699f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f9fe7ba4ea5b24ffdf8e125f660aca3ba4a147fb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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