Linux Kernel up to 6.18.7/6.19-rc6 gpio lineinfo_changed_notify allocation of resources

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

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 6.18.7/6.19-rc6. Affected by this vulnerability is the function lineinfo_changed_notify of the component gpio. Such manipulation leads to allocation of resources. This vulnerability is referenced as CVE-2026-23079. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.18.7/6.19-rc6 and classified as critical. Affected by this issue is the function lineinfo_changed_notify of the component gpio. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: Fix resource leaks on errors in lineinfo_changed_notify() On error handling paths, lineinfo_changed_notify() doesn't free the allocated resources which results leaks. Fix it.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-23079 since 01/13/2026. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 297872 (Linux Distros Unpatched Vulnerability : CVE-2026-23079), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.18.8 or 6.19-rc7 eliminates this vulnerability. Applying the patch 16414341b0dd58b650b5df45c79115bc5977bb76/70b3c280533167749a8f740acaa8ef720f78f984 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 (297872) and CERT Bund (WID-SEC-2026-0324). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel

Productinfo

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Version

License

Website

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: Allocation of resources
CWE: CWE-770 / CWE-400 / 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: 297872
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23079

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.8/6.19-rc7
Patch: 16414341b0dd58b650b5df45c79115bc5977bb76/70b3c280533167749a8f740acaa8ef720f78f984

Timelineinfo

01/13/2026 CVE reserved
02/04/2026 +22 days Advisory disclosed
02/04/2026 +0 days VulDB entry created
05/03/2026 +88 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-23079 (🔒)
GCVE (CVE): GCVE-0-2026-23079
GCVE (VulDB): GCVE-100-344300
CERT Bund: WID-SEC-2026-0324 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 02/04/2026 18:06
Updated: 05/03/2026 08:24
Changes: 02/04/2026 18:06 (59), 02/06/2026 10:08 (7), 02/08/2026 11:50 (2), 03/18/2026 14:59 (11), 05/03/2026 08:24 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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