Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e6c7b3e15559699a30646dd45195549c7db447bd before cf7ae870560b988247a4bbbe5399edd326632680; affected e6c7b3e15559699a30646dd45195549c7db447bd before db4c26adf7117b1a4431d1197ae7109fee3230ad; affected e6c7b3e15559699a30646dd45195549c7db447bd before 79cab730dbaaac03b946c7f5681bd08c986e2abd; affected e6c7b3e15559699a30646dd45195549c7db447bd before e44c42c830b7ab36e3a3a86321c619f24def5206 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.120 through 6.6.*; unaffected 6.12.64 through 6.12.*; unaffected 6.18.4 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.