CVE-2025-71101

High

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.

SeverityHigh
CVSS7.1
Exploit probability3. percentile0.1%
ProductLinux Kernel
PublishedJan 13, 2026
First seenJan 13, 2026

How to fix

Update
  • linux linux_kernel6.6.120, 6.12.64, 6.18.4 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel6.6.1 ≤ v < 6.6.120, 6.7 ≤ v < 6.12.64, 6.13 ≤ v < 6.18.4, 6.6, 6.196.6.120, 6.12.64, 6.18.4

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