Bug 2429058 (CVE-2025-71101) - CVE-2025-71101 kernel: platform/x86: hp-bioscfg: Fix out-of-bounds array access in ACPI package parsing
Summary: CVE-2025-71101 kernel: platform/x86: hp-bioscfg: Fix out-of-bounds array acce...
Keywords:
Status: NEW
Alias: CVE-2025-71101
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-13 16:03 UTC by OSIDB Bzimport
Modified: 2026-01-15 03:09 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-01-13 16:03:44 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.