Linux Kernel up to 6.6.119/6.12.63/6.18.3/6.19-rc3 _elements_from_package out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.6.119/6.12.63/6.18.3/6.19-rc3. Affected is the function _elements_from_package. Executing a manipulation can lead to out-of-bounds. This vulnerability is handled as CVE-2025-71101. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.6.119/6.12.63/6.18.3/6.19-rc3 and classified as problematic. This vulnerability affects the function _elements_from_package. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2025-71101 since 01/13/2026. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 299777 (Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50112)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.120, 6.12.64, 6.18.4 or 6.19-rc4 eliminates this vulnerability. Applying the patch cf7ae870560b988247a4bbbe5399edd326632680/db4c26adf7117b1a4431d1197ae7109fee3230ad/79cab730dbaaac03b946c7f5681bd08c986e2abd/e44c42c830b7ab36e3a3a86321c619f24def5206 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (299777). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299777
Nessus Name: Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50112)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.120/6.12.64/6.18.4/6.19-rc4
Patch: cf7ae870560b988247a4bbbe5399edd326632680/db4c26adf7117b1a4431d1197ae7109fee3230ad/79cab730dbaaac03b946c7f5681bd08c986e2abd/e44c42c830b7ab36e3a3a86321c619f24def5206

Timelineinfo

01/13/2026 Advisory disclosed
01/13/2026 +0 days CVE reserved
01/13/2026 +0 days VulDB entry created
03/31/2026 +77 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71101 (🔒)
GCVE (CVE): GCVE-0-2025-71101
GCVE (VulDB): GCVE-100-340636

Entryinfo

Created: 01/13/2026 17:32
Updated: 03/31/2026 19:44
Changes: 01/13/2026 17:32 (58), 02/24/2026 14:02 (2), 03/25/2026 20:55 (11), 03/31/2026 19:44 (1)
Complete: 🔍
Cache ID: 216:03B:103

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