PT-2025-9010 · Linux+4 · Linux Kernel+4

Alex Deucher + 3 · Published 2025-02-04 · Updated 2026-05-26 · CVE-2025-21819

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. The issue was related to a commit that used the HW lock manager for PSR1, which could cause a system hang when connecting with two eDP panels.

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

Exploit

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2025-12024

CVE-2025-21819

DLA-4102-1

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-2025:20190-1

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

Affected Products

Astra Linux

Debian

Linux Kernel

Red Os

Suse

References · 1213

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21819.json · Exploit
• https://linux.oracle.com/errata/ELSA-2025-20530.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1178-1 · Vendor Advisory
• https://git.kernel.org/stable/c/915697c2e69ac8d14dad498e6d6f43dbb7de3787 · Patch
• https://git.kernel.org/stable/c/dcc3f2c06d80da39eee742b51ddf0781affb260c · Patch
• https://osv.dev/vulnerability/CVE-2025-21819 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21819 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:20190-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-12024 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2025-21819 · Vendor Advisory
• https://git.kernel.org/stable/c/f245b400a223a71d6d5f4c72a2cb9b573a7fc2b6 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-21819 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21819 · Vendor Advisory
• https://git.kernel.org/stable/c/95c75578c420110c43791295985abb961d6dc033 · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2025-21819 · Vendor Advisory