Linux Kernel up to 7.0-rc1 logicvc logicvc_drm_config_parse memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 7.0-rc1 and classified as critical. This affects the function logicvc_drm_config_parse of the component logicvc. This manipulation causes memory leak. The identification of this vulnerability is CVE-2026-23426. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 7.0-rc1 and classified as critical. Affected by this vulnerability is the function logicvc_drm_config_parse of the component logicvc. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. 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/logicvc: Fix device node reference leak in logicvc_drm_config_parse() The logicvc_drm_config_parse() function calls of_get_child_by_name() to find the "layers" node but fails to release the reference, leading to a device node reference leak. Fix this by using the __free(device_node) cleanup attribute to automatic release the reference when the variable goes out of scope.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-23426 since 01/13/2026. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 304980 (Linux Distros Unpatched Vulnerability : CVE-2026-23426), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7 or 7.0-rc2 eliminates this vulnerability. Applying the patch b88f49910be147b7974098b9172b0d3873142d6a/0bd326dffd9e103335d77d9c31275c0d5a7979eb/871630255ecd2d9b64ad1d75a7dfc0567d7d9989/f8a6eba20edb938166b26e133cc61306e1bc6de9/78e91e49d28e05ccaa6b445bafb5e367d57c9583/fef0e649f8b42bdffe4a916dd46e1b1e9ad2f207 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 (304980) and CERT Bund (WID-SEC-2026-0985). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Microsoft Azure Linux

Productinfo

Type

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Name

Version

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Website

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

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

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 304980
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23426

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.167/6.6.130/6.12.77/6.18.17/6.19.7/7.0-rc2
Patch: b88f49910be147b7974098b9172b0d3873142d6a/0bd326dffd9e103335d77d9c31275c0d5a7979eb/871630255ecd2d9b64ad1d75a7dfc0567d7d9989/f8a6eba20edb938166b26e133cc61306e1bc6de9/78e91e49d28e05ccaa6b445bafb5e367d57c9583/fef0e649f8b42bdffe4a916dd46e1b1e9ad2f207

Timelineinfo

01/13/2026 CVE reserved
04/03/2026 +79 days Advisory disclosed
04/03/2026 +0 days VulDB entry created
06/25/2026 +83 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-23426 (🔒)
GCVE (CVE): GCVE-0-2026-23426
GCVE (VulDB): GCVE-100-355099
CERT Bund: WID-SEC-2026-0985 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/03/2026 17:04
Updated: 06/25/2026 04:36
Changes: 04/03/2026 17:04 (59), 04/08/2026 00:18 (2), 04/08/2026 04:01 (7), 05/11/2026 17:19 (1), 06/25/2026 04:36 (1)
Complete: 🔍
Cache ID: 216::103

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