Linux Kernel up to 6.18.5/6.19-rc4 gpio_mpsse_probe 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 classified as critical has been found in Linux Kernel up to 6.18.5/6.19-rc4. Impacted is the function gpio_mpsse_probe. The manipulation leads to memory leak. This vulnerability is documented as CVE-2026-23015. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.18.5/6.19-rc4. It has been rated as critical. This issue affects the function gpio_mpsse_probe. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths The reference obtained by calling usb_get_dev() is not released in the gpio_mpsse_probe() error paths. Fix that by using device managed helper functions. Also remove the usb_put_dev() call in the disconnect function since now it will be released automatically.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2026-23015 since 01/13/2026. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 297483 (Linux Distros Unpatched Vulnerability : CVE-2026-23015), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.18.6 or 6.19-rc5 eliminates this vulnerability. Applying the patch 7ea26e6dcabc270433b6ded2a1aee85b215d1b28/1e876e5a0875e71e34148c9feb2eedd3bf6b2b43 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 (297483), EUVD (EUVD-2026-5079) and CERT Bund (WID-SEC-2026-0280). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • 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: Memory leak
CWE: CWE-401 / 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: 297483
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23015

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.6/6.19-rc5
Patch: 7ea26e6dcabc270433b6ded2a1aee85b215d1b28/1e876e5a0875e71e34148c9feb2eedd3bf6b2b43

Timelineinfo

01/13/2026 CVE reserved
01/31/2026 +18 days Advisory disclosed
01/31/2026 +0 days VulDB entry created
03/26/2026 +54 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-23015 (🔒)
GCVE (CVE): GCVE-0-2026-23015
GCVE (VulDB): GCVE-100-343601
EUVD: 🔒
CERT Bund: WID-SEC-2026-0280 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/31/2026 15:18
Updated: 03/26/2026 02:11
Changes: 01/31/2026 15:18 (58), 02/01/2026 03:33 (1), 02/01/2026 03:51 (2), 02/02/2026 18:12 (7), 03/26/2026 02:11 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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