PT-2025-9979 · Linux+5 · Linux Kernel+5

Published 2025-01-15 · Updated 2026-05-26 · CVE-2025-21831

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A vulnerability in the Linux kernel has been resolved, related to the handling of PCIe ports during system suspend. The issue occurs when the system is suspended and certain root ports are put into D3hot, leading to problems with wakeup from suspend on specific devices, such as the TUXEDO Sirius 16 Gen 1 with an old BIOS, resulting in a system hang.

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

Exploit

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

AZL-69009

BDU:2026-03989

CVE-2025-21831

ECHO-11D3-EF86-9575

OESA-2025-1446

OESA-2025-1450

OPENSUSE-SU-2025_1177-1

OPENSUSE-SU-2025_1178-1

OPENSUSE-SU-2025_1180-1

SUSE-SU-2025:01919-1

SUSE-SU-2025:1177-1

SUSE-SU-2025:1178-1

SUSE-SU-2025:1180-1

SUSE-SU-2025:1293-1

SUSE-SU-2025:20190-1

SUSE-SU-2025:20192-1

SUSE-SU-2025:20260-1

SUSE-SU-2025:20270-1

SUSE-SU-2025_1177-1

SUSE-SU-2025_1178-1

SUSE-SU-2025_1180-1

SUSE-SU-2025_1293-1

USN-7449-1

USN-7449-2

USN-7450-1

USN-7451-1

USN-7452-1

USN-7453-1

USN-7468-1

USN-7521-1

USN-7521-2

USN-7521-3

USN-7523-1

USN-7524-1

Affected Products

Astra Linux

Debian

Linuxmint

Linux Kernel

Suse

Ubuntu

References · 2882

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21831.json · Exploit
• https://ubuntu.com/security/CVE-2024-53044 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56627 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-56602 · Security Note
• https://ubuntu.com/security/CVE-2025-21793 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-57911 · Security Note
• https://linux.oracle.com/errata/ELSA-2025-20530.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-49963 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56647 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50244 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-49914 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-53191 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-41014 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56615 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21707 · Vendor Advisory