PT-2025-25856 · Linux+4 · Linux Kernel+4

Published 2025-05-13 · Updated 2026-05-26 · CVE-2025-38082

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A potential out-of-bound write issue has been resolved in the Linux kernel, specifically in the gpio: virtuser component. The problem occurred when the input size exceeded the buffer size in the "simple write to buffer" function. To prevent this, a check has been added to ensure the input size does not exceed the buffer size, and a zero termination is written afterwards.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Out of bounds Read

Weakness Enumeration

CWE-787

CWE-125

Related Identifiers

BDU:2025-11861

CVE-2025-38082

ECHO-37E3-48B0-B66B

USN-7769-1

USN-7769-2

USN-7769-3

USN-7770-1

USN-7771-1

USN-7789-1

USN-7789-2

Affected Products

Astra Linux

Debian

Linuxmint

Linux Kernel

Ubuntu

References · 223

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38082.json · Exploit
• https://ubuntu.com/security/CVE-2025-38151 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38038 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-20530.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38099 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7771-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38119 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38037 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38096 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38306 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38272 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38311 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38040 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-20480.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38032 · Vendor Advisory