PT-2025-44109 · Linux+2 · Linux Kernel+2

Published 2025-10-02 · Updated 2026-03-07 · CVE-2025-40041

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.16.0+ and later

Description The Linux kernel contains a flaw in the BPF subsystem related to handling struct operations on the LoongArch architecture. Specifically, the return values of struct operations are not correctly sign-extended, leading to a potential kernel panic. The issue was identified during testing with the ns bpf qdisc selftest. The incorrect sign extension occurs because the return value, treated as a 32-bit value, is improperly extended to 64-bit, which is incorrect for the LoongArch ABI. This can cause issues when dealing with struct operations that require the LoongArch ABI.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2025-13786

CVE-2025-40041

OPENSUSE-SU-2025:15702-1

OPENSUSE-SU-2026:10301-1

USN-8048-1

Affected Products

Linuxmint

Linux Kernel

Ubuntu

References · 581

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40041.json · Exploit
• https://ubuntu.com/security/CVE-2025-40153 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40047 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68191 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40066 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40065 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40055 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68210 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68244 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40099 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40217 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40331 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40081 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68177 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68184 · Vendor Advisory