FKIE_CVE-2025-71101

Vulnerability from fkie_nvd - Published: 2026-01-13 16:16 - Updated: 2026-03-25 18:56
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86: hp-bioscfg: Fix out-of-bounds array access in ACPI package parsing The hp_populate_*_elements_from_package() functions in the hp-bioscfg driver contain out-of-bounds array access vulnerabilities. These functions parse ACPI packages into internal data structures using a for loop with index variable 'elem' that iterates through enum_obj/integer_obj/order_obj/password_obj/string_obj arrays. When processing multi-element fields like PREREQUISITES and ENUM_POSSIBLE_VALUES, these functions read multiple consecutive array elements using expressions like 'enum_obj[elem + reqs]' and 'enum_obj[elem + pos_values]' within nested loops. The bug is that the bounds check only validated elem, but did not consider the additional offset when accessing elem + reqs or elem + pos_values. The fix changes the bounds check to validate the actual accessed index.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79cab730dbaaac03b946c7f5681bd08c986e2abdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf7ae870560b988247a4bbbe5399edd326632680Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db4c26adf7117b1a4431d1197ae7109fee3230adPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e44c42c830b7ab36e3a3a86321c619f24def5206Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.6
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: Fix out-of-bounds array access in ACPI package parsing\n\nThe hp_populate_*_elements_from_package() functions in the hp-bioscfg\ndriver contain out-of-bounds array access vulnerabilities.\n\nThese functions parse ACPI packages into internal data structures using\na for loop with index variable \u0027elem\u0027 that iterates through\nenum_obj/integer_obj/order_obj/password_obj/string_obj arrays.\n\nWhen processing multi-element fields like PREREQUISITES and\nENUM_POSSIBLE_VALUES, these functions read multiple consecutive array\nelements using expressions like \u0027enum_obj[elem + reqs]\u0027 and\n\u0027enum_obj[elem + pos_values]\u0027 within nested loops.\n\nThe bug is that the bounds check only validated elem, but did not consider\nthe additional offset when accessing elem + reqs or elem + pos_values.\n\nThe fix changes the bounds check to validate the actual accessed index."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nplatform/x86: hp-bioscfg: Correcci\u00f3n de acceso a array fuera de l\u00edmites en el an\u00e1lisis de paquetes ACPI\n\nLas funciones hp_populate_*_elements_from_package() en el controlador hp-bioscfg contienen vulnerabilidades de acceso a array fuera de l\u00edmites.\n\nEstas funciones analizan paquetes ACPI en estructuras de datos internas utilizando un bucle for con la variable de \u00edndice \u0027elem\u0027 que itera a trav\u00e9s de arrays enum_obj/integer_obj/order_obj/password_obj/string_obj.\n\nAl procesar campos de m\u00faltiples elementos como PREREQUISITES y ENUM_POSSIBLE_VALUES, estas funciones leen m\u00faltiples elementos de array consecutivos utilizando expresiones como \u0027enum_obj[elem + reqs]\u0027 y \u0027enum_obj[elem + pos_values]\u0027 dentro de bucles anidados.\n\nEl error es que la comprobaci\u00f3n de l\u00edmites solo validaba elem, pero no consideraba el desplazamiento adicional al acceder a elem + reqs o elem + pos_values.\n\nLa correcci\u00f3n cambia la comprobaci\u00f3n de l\u00edmites para validar el \u00edndice real accedido."
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  "id": "CVE-2025-71101",
  "lastModified": "2026-03-25T18:56:12.130",
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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