CVE-2025-71101

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> platform/x86: hp-bioscfg: Fix out-of-bounds array access in ACPI package parsing<br /> <br /> The hp_populate_*_elements_from_package() functions in the hp-bioscfg<br /> driver contain out-of-bounds array access vulnerabilities.<br /> <br /> These functions parse ACPI packages into internal data structures using<br /> a for loop with index variable &amp;#39;elem&amp;#39; that iterates through<br /> enum_obj/integer_obj/order_obj/password_obj/string_obj arrays.<br /> <br /> When processing multi-element fields like PREREQUISITES and<br /> ENUM_POSSIBLE_VALUES, these functions read multiple consecutive array<br /> elements using expressions like &amp;#39;enum_obj[elem + reqs]&amp;#39; and<br /> &amp;#39;enum_obj[elem + pos_values]&amp;#39; within nested loops.<br /> <br /> The bug is that the bounds check only validated elem, but did not consider<br /> the additional offset when accessing elem + reqs or elem + pos_values.<br /> <br /> The fix changes the bounds check to validate the actual accessed index.