CVE-2023-53047 (GCVE-0-2023-53047)
Vulnerability from cvelistv5
Published
2025-05-02 15:55
Modified
2025-05-04 07:48
Severity ?
Summary
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 757cc3e9ff1d72d014096399d6e2bf03974d9da1
Version: 757cc3e9ff1d72d014096399d6e2bf03974d9da1
Version: 757cc3e9ff1d72d014096399d6e2bf03974d9da1
Version: 757cc3e9ff1d72d014096399d6e2bf03974d9da1
Version: 757cc3e9ff1d72d014096399d6e2bf03974d9da1
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{
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/tee/amdtee/core.c"
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          "vendor": "Linux",
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      "cpeApplicability": [
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          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:48:32.190Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/f632a90f8e39db39b322107b9a8d438b826a7f4f"
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          "url": "https://git.kernel.org/stable/c/02b296978a2137d7128151c542e84dc96400bc00"
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        },
        {
          "url": "https://git.kernel.org/stable/c/b3ef9e6fe09f1a132af28c623edcf4d4f39d9f35"
        },
        {
          "url": "https://git.kernel.org/stable/c/f8502fba45bd30e1a6a354d9d898bc99d1a11e6d"
        }
      ],
      "title": "tee: amdtee: fix race condition in amdtee_open_session",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53047",
    "datePublished": "2025-05-02T15:55:04.071Z",
    "dateReserved": "2025-04-16T07:18:43.828Z",
    "dateUpdated": "2025-05-04T07:48:32.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53047\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-02T16:15:23.790\",\"lastModified\":\"2025-05-05T20:54:45.973\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tee: amdtee: correcci\u00f3n de la condici\u00f3n de ejecuci\u00f3n en amdtee_open_session. Existe una posible condici\u00f3n de ejecuci\u00f3n en amdtee_open_session que podr\u00eda provocar un use-after-free. Por ejemplo, en amdtee_open_session(), despu\u00e9s de configurar sess-\u0026gt;sess_mask y antes de configurar: sess-\u0026gt;session_info[i] = session_info; si amdtee_close_session() cierra esta misma sesi\u00f3n, se liberar\u00e1 la estructura de datos \u0027sess\u0027, lo que provocar\u00e1 un p\u00e1nico del kernel al acceder a \u0027sess\u0027 dentro de amdtee_open_session(). La soluci\u00f3n es configurar el bit sess-\u0026gt;sess_mask como \u00faltimo paso en amdtee_open_session().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/02b296978a2137d7128151c542e84dc96400bc00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a63cce9393e4e7dbc5af82dc87e68cb321cb1a78\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b3ef9e6fe09f1a132af28c623edcf4d4f39d9f35\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f632a90f8e39db39b322107b9a8d438b826a7f4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f8502fba45bd30e1a6a354d9d898bc99d1a11e6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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