fkie_cve-2023-53047
Vulnerability from fkie_nvd
Published
2025-05-02 16:15
Modified
2025-11-12 16:46
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02b296978a2137d7128151c542e84dc96400bc00Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a63cce9393e4e7dbc5af82dc87e68cb321cb1a78Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3ef9e6fe09f1a132af28c623edcf4d4f39d9f35Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f632a90f8e39db39b322107b9a8d438b826a7f4fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8502fba45bd30e1a6a354d9d898bc99d1a11e6dPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.3
linux linux_kernel 6.3
linux linux_kernel 6.3


To clipboard 

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      "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()."
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  "id": "CVE-2023-53047",
  "lastModified": "2025-11-12T16:46:56.800",
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          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-05-02T16:15:23.790",
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}


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