Linux Kernel up to 6.1.141/6.6.93/6.12.33/6.15.2 hwmon read_string memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k3.28

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.1.141/6.6.93/6.12.33/6.15.2. Affected by this vulnerability is the function read_string of the component hwmon. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2025-38142. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.1.141/6.6.93/6.12.33/6.15.2. This affects the function read_string of the component hwmon. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus-ec-sensors) check sensor index in read_string() Prevent a potential invalid memory access when the requested sensor is not found. find_ec_sensor_index() may return a negative value (e.g. -ENOENT), but its result was used without checking, which could lead to undefined behavior when passed to get_sensor_info(). Add a proper check to return -EINVAL if sensor_index is negative. Found by Linux Verification Center (linuxtesting.org) with SVACE. [groeck: Return error code returned from find_ec_sensor_index]

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-38142 since 04/16/2025. The exploitability is told to be easy. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/18/2026).

The vulnerability scanner Nessus provides a plugin with the ID 249177 (Debian dsa-5973 : affs-modules-6.1.0-37-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.142, 6.6.94, 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch 6bf529ce84dccc0074dbc704e70aee4aa545057e/4e9e45746b861ebd54c03ef301da2cb8fc990536/19bd9cde38dd4ca1771aed7afba623e7f4247c8e/7eeb3df6f07a886bdfd52757ede127a59a8784dc/25be318324563c63cbd9cb53186203a08d2f83a1 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 databases at Tenable (249177), EUVD (EUVD-2025-19801) and CERT Bund (WID-SEC-2025-1452). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: 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: 249177
Nessus Name: Debian dsa-5973 : affs-modules-6.1.0-37-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.142/6.6.94/6.12.34/6.15.3/6.16-rc1
Patch: 6bf529ce84dccc0074dbc704e70aee4aa545057e/4e9e45746b861ebd54c03ef301da2cb8fc990536/19bd9cde38dd4ca1771aed7afba623e7f4247c8e/7eeb3df6f07a886bdfd52757ede127a59a8784dc/25be318324563c63cbd9cb53186203a08d2f83a1

Timelineinfo

04/16/2025 CVE reserved
07/03/2025 +78 days Advisory disclosed
07/03/2025 +0 days VulDB entry created
04/18/2026 +289 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38142 (🔒)
GCVE (CVE): GCVE-0-2025-38142
GCVE (VulDB): GCVE-100-314721
EUVD: 🔒
CERT Bund: WID-SEC-2025-1452 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/03/2025 12:08
Updated: 04/18/2026 05:46
Changes: 07/03/2025 12:08 (59), 07/03/2025 13:41 (1), 08/13/2025 13:38 (2), 08/23/2025 19:25 (7), 09/21/2025 20:11 (1), 11/09/2025 15:24 (1), 12/06/2025 16:43 (1), 12/19/2025 00:31 (12), 04/18/2026 05:46 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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