VDB-361435 · CVE-2026-43131 · WID-SEC-2026-1405

Linux Kernel up to 6.19.5 null pointer dereference

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.19.5. This affects an unknown function. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2026-43131. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.19.5 and classified as critical. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: Fix null pointer dereference issue If SMU is disabled, during RAS initialization, there will be null pointer dereference issue here.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-43131 since 05/01/2026. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 6.19.6 eliminates this vulnerability. Applying the patch 8e035505fa0e5b7c4306fd3f4e27f8e8f5bfad8c/1197366cca89a4c44c541ddedb8ce8bf0757993d 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 vulnerability database at CERT Bund (WID-SEC-2026-1405). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Google Container-Optimized OS
Debian Linux
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
SUSE openSUSE
RESF Rocky Linux
Microsoft Azure Linux
Open Source Linux Kernel
Proxmox Virtual Environment

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: 5.7
VulDB Meta Temp Score: 5.5

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

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.19.6
Patch: 8e035505fa0e5b7c4306fd3f4e27f8e8f5bfad8c/1197366cca89a4c44c541ddedb8ce8bf0757993d

Timelineinfo

05/01/2026 CVE reserved
05/06/2026 +5 days Advisory disclosed
05/06/2026 +0 days VulDB entry created
07/23/2026 +78 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43131 (🔒)
GCVE (CVE): GCVE-0-2026-43131
GCVE (VulDB): GCVE-100-361435
CERT Bund: WID-SEC-2026-1405 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/06/2026 16:42
Updated: 07/23/2026 04:03
Changes: 05/06/2026 16:42 (57), 05/18/2026 20:28 (7), 07/23/2026 04:03 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.