ghsa-8p4g-7vvj-g5r6
Vulnerability from github
Published
2025-05-01 15:31
Modified
2025-05-07 15:31
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:

mISDN: fix possible memory leak in mISDN_register_device()

Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, add put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0.

Set device class before put_device() to avoid null release() function WARN message in device_release().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49915"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:16Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmISDN: fix possible memory leak in mISDN_register_device()\n\nAfer commit 1fa5ae857bb1 (\"driver core: get rid of struct device\u0027s\nbus_id string array\"), the name of device is allocated dynamically,\nadd put_device() to give up the reference, so that the name can be\nfreed in kobject_cleanup() when the refcount is 0.\n\nSet device class before put_device() to avoid null release() function\nWARN message in device_release().",
  "id": "GHSA-8p4g-7vvj-g5r6",
  "modified": "2025-05-07T15:31:26Z",
  "published": "2025-05-01T15:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49915"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/029d5b7688a2f3a86f2a3be5a6ba9cc968c80e41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/080aabfb29b2ee9cbb8894a1d039651943d3773e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d4e91efcaee081e919b3c50e875ecbb84290e41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ff6b669523d3b3d253a044fa9636a67d0694995"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a636fc5a7cabd05699b5692ad838c2c7a3abec7b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1d1aede313eb2b9a84afd60ff6cfb7c33631e0e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e77d213843e67b4373285712699b692f9c743f61"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7d1d4d9ac0dfa40be4c2c8abd0731659869b297"
    }
  ],
  "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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