PT-2025-14337 · Linux+6 · Linux Kernel+6

Published 2025-02-27 · Updated 2026-04-20 · CVE-2025-21956

Positive Technologies (AI Summary)

CVSS v2.0

6.2

Medium

Base vector

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

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

Description A warning message occurs in the Linux kernel due to the display color depth not being handled when it equals 14. This issue is observed in Radeon RX 6600 XT and is caused by a calculation error in the dc resource.c file. The problem is fixed by assigning a normalized pixel clock value.

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

Exploit

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2025-11832

CVE-2025-21956

DLA-4178-1

DLA-4193-1

DSA-5900-1

ECHO-CA6B-1CB1-2761

MGASA-2025-0142

MGASA-2025-0146

OESA-2025-2077

OESA-2025-2078

OESA-2025-2079

OPENSUSE-SU-2025_01614-1

OPENSUSE-SU-2025_01707-1

SUSE-SU-2025:01600-1

SUSE-SU-2025:01614-1

SUSE-SU-2025:01707-1

SUSE-SU-2025:01919-1

SUSE-SU-2025:01951-1

SUSE-SU-2025:01964-1

SUSE-SU-2025:01967-1

SUSE-SU-2025:20192-1

SUSE-SU-2025:20206-1

SUSE-SU-2025:20270-1

SUSE-SU-2025:20283-1

SUSE-SU-2025_01600-1

SUSE-SU-2025_01614-1

SUSE-SU-2025_01707-1

SUSE-SU-2025_01951-1

SUSE-SU-2025_01964-1

SUSE-SU-2025_01967-1

USN-7585-1

USN-7585-2

USN-7585-3

USN-7585-4

USN-7585-5

USN-7585-6

USN-7585-7

USN-7591-1

USN-7591-2

USN-7591-3

USN-7591-4

USN-7591-5

USN-7591-6

USN-7592-1

USN-7593-1

USN-7597-1

USN-7597-2

USN-7598-1

USN-7602-1

USN-7605-1

USN-7605-2

USN-7606-1

USN-7628-1

USN-7640-1

USN-7655-1

USN-7764-1

USN-7764-2

USN-7765-1

USN-7766-1

USN-7767-1

USN-7767-2

USN-7779-1

USN-7790-1

USN-7800-1

USN-7801-1

USN-7801-2

USN-7801-3

USN-7802-1

USN-7809-1

Affected Products

Astra Linux

Debian

Linuxmint

Linux Kernel

Red Os

Suse

Ubuntu

References · 2263

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21956.json · Exploit
• https://ubuntu.com/security/CVE-2025-37811 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7764-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21871 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37740 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37798 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47211 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38052 · Security Note
• https://git.kernel.org/stable/c/04f90b505ad3a6eed474bbaa03167095fef5203a · Patch
• https://ubuntu.com/security/CVE-2025-23147 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7593-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21791 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21978 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7800-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38089 · Security Note