VDB-312852 · CVE-2025-38021 · Nessus 258130

Linux Kernel up to 6.14.7 AMD Display pipe_ctx null pointer dereference

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.14.7. Affected by this issue is the function pipe_ctx of the component AMD Display. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2025-38021. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.14.7. Affected is the function pipe_ctx of the component AMD Display. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check of pipe_ctx->plane_state for update_dchubp_dpp Similar to commit 6a057072ddd1 ("drm/amd/display: Fix null check for pipe_ctx->plane_state in dcn20_program_pipe") that addresses a null pointer dereference on dcn20_update_dchubp_dpp. This is the same function hooked for update_dchubp_dpp in dcn401, with the same issue. Fix possible null pointer deference on dcn401_program_pipe too. (cherry picked from commit d8d47f739752227957d8efc0cb894761bfe1d879)

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-38021 since 04/16/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 258130 (Ubuntu 25.04 : Linux kernel (Azure) vulnerabilities (USN-7721-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.14.8 eliminates this vulnerability. Applying the patch 4679061fb25344d6010ce7b9bebac21c91a0b75a/a3b7e65b6be59e686e163fa1ceb0922f996897c2 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (258130) and CERT Bund (WID-SEC-2025-1350). Once again VulDB remains the best source for vulnerability data.

Affected

Debian Linux
Amazon Linux 2
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
SUSE openSUSE
Open Source Linux Kernel
RESF Rocky Linux
Dell Avamar
Dell NetWorker
Dell Secure Connect Gateway
IBM QRadar SIEM

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 258130
Nessus Name: Ubuntu 25.04 : Linux kernel (Azure) vulnerabilities (USN-7721-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.14.8
Patch: 4679061fb25344d6010ce7b9bebac21c91a0b75a/a3b7e65b6be59e686e163fa1ceb0922f996897c2

Timelineinfo

04/16/2025 🔍
06/18/2025 +63 days 🔍
06/18/2025 +0 days 🔍
02/02/2026 +229 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CNA: Linux
CVE: CVE-2025-38021 (🔍)

GCVE (CVE): GCVE-0-2025-38021
GCVE (VulDB): GCVE-100-312852
CERT Bund: WID-SEC-2025-1350 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 06/18/2025 12:02
Updated: 02/02/2026 04:36
Changes: 06/18/2025 12:02 (59), 08/30/2025 09:33 (2), 10/20/2025 05:40 (7), 11/15/2025 01:33 (11), 02/02/2026 04:36 (1)
Complete: 🔍
Cache ID: 216::103