ghsa-r348-7mvp-g684
Vulnerability from github
Published
2025-05-02 18:31
Modified
2025-05-02 18:31
Details

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

tee: amdtee: fix race condition in amdtee_open_session

There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after sess->sess_mask is set, and before setting:

sess->session_info[i] = session_info;

if amdtee_close_session() closes this same session, then 'sess' data structure will be released, causing kernel panic when 'sess' is accessed within amdtee_open_session().

The solution is to set the bit sess->sess_mask as the last step in amdtee_open_session().

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53047"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-02T16:15:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntee: amdtee: fix race condition in amdtee_open_session\n\nThere is a potential race condition in amdtee_open_session that may\nlead to use-after-free. For instance, in amdtee_open_session() after\nsess-\u003esess_mask is set, and before setting:\n\n    sess-\u003esession_info[i] = session_info;\n\nif amdtee_close_session() closes this same session, then \u0027sess\u0027 data\nstructure will be released, causing kernel panic when \u0027sess\u0027 is\naccessed within amdtee_open_session().\n\nThe solution is to set the bit sess-\u003esess_mask as the last step in\namdtee_open_session().",
  "id": "GHSA-r348-7mvp-g684",
  "modified": "2025-05-02T18:31:33Z",
  "published": "2025-05-02T18:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53047"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/02b296978a2137d7128151c542e84dc96400bc00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a63cce9393e4e7dbc5af82dc87e68cb321cb1a78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3ef9e6fe09f1a132af28c623edcf4d4f39d9f35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f632a90f8e39db39b322107b9a8d438b826a7f4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f8502fba45bd30e1a6a354d9d898bc99d1a11e6d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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