Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= e6c7b3e15559699a30646dd45195549c7db447bd, < cf7ae870560b988247a4bbbe5399edd326632680; >= e6c7b3e15559699a30646dd45195549c7db447bd, < db4c26adf7117b1a4431d1197ae7109fee3230ad; >= e6c7b3e15559699a30646dd45195549c7db447bd, < 79cab730dbaaac03b946c7f5681bd08c986e2abd; >= e6c7b3e15559699a30646dd45195549c7db447bd, < e44c42c830b7ab36e3a3a86321c619f24def5206 |
| Linux | Linux | 6.6 |
References
- https://git.kernel.org/stable/c/79cab730dbaaac03b946c7f5681bd08c986e2abdPatch
- https://git.kernel.org/stable/c/cf7ae870560b988247a4bbbe5399edd326632680Patch
- https://git.kernel.org/stable/c/db4c26adf7117b1a4431d1197ae7109fee3230adPatch
- https://git.kernel.org/stable/c/e44c42c830b7ab36e3a3a86321c619f24def5206Patch
Timeline
- Published
- Jan 13, 2026
- Last modified
- Jul 30, 2026
- NVD status
- Modified