ghsa-jpj2-8x9f-59j6
Vulnerability from github
Published
2025-03-17 18:31
Modified
2025-03-17 18:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

misc: ocxl: fix possible double free in ocxl_file_register_afu

info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again.

Fix this by adding free_minor() and return to err_unregister error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49455"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:21Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: ocxl: fix possible double free in ocxl_file_register_afu\n\ninfo_release() will be called in device_unregister() when info-\u003edev\u0027s\nreference count is 0. So there is no need to call ocxl_afu_put() and\nkfree() again.\n\nFix this by adding free_minor() and return to err_unregister error path.",
  "id": "GHSA-jpj2-8x9f-59j6",
  "modified": "2025-03-17T18:31:49Z",
  "published": "2025-03-17T18:31:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49455"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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