Linux Kernel up to 6.18.9 toshiba_haps_add 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 was found in Linux Kernel up to 6.18.9. It has been declared as critical. Affected by this issue is the function toshiba_haps_add. Executing a manipulation can lead to memory leak. This vulnerability is tracked as CVE-2026-23176. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.18.9 and classified as critical. This vulnerability affects the function toshiba_haps_add. 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: platform/x86: toshiba_haps: Fix memory leaks in add/remove routines toshiba_haps_add() leaks the haps object allocated by it if it returns an error after allocating that object successfully. toshiba_haps_remove() does not free the object pointed to by toshiba_haps before clearing that pointer, so it becomes unreachable allocated memory. Address these memory leaks by using devm_kzalloc() for allocating the memory in question.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2026-23176 since 01/13/2026. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 299096 (Linux Distros Unpatched Vulnerability : CVE-2026-23176), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.250, 5.15.200, 6.1.163, 6.6.124, 6.12.70 or 6.18.10 eliminates this vulnerability. Applying the patch 17f37c4cdf42a9e4915216b9e130fc8baef4cc64/5bce10f0f9435afaae3fc4df9a52b01d9b3853dc/f2093e87ddec13e7a920f326c078a5f765ba89c3/ca9ff71c15bc8e48529c2033294a519a7749b272/bf0474356875d005d420f8c6b9ac168566e72e87/f93ae43780b759a70734be9bc82c1adcf7f33208/128497456756e1b952bd5a912cd073836465109d 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 (299096), EUVD (EUVD-2026-5862) and CERT Bund (WID-SEC-2026-0421). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

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

Productinfo

Type

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Name

Version

License

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: 299096
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23176

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.250/5.15.200/6.1.163/6.6.124/6.12.70/6.18.10
Patch: 17f37c4cdf42a9e4915216b9e130fc8baef4cc64/5bce10f0f9435afaae3fc4df9a52b01d9b3853dc/f2093e87ddec13e7a920f326c078a5f765ba89c3/ca9ff71c15bc8e48529c2033294a519a7749b272/bf0474356875d005d420f8c6b9ac168566e72e87/f93ae43780b759a70734be9bc82c1adcf7f33208/128497456756e1b952bd5a912cd073836465109d

Timelineinfo

01/13/2026 CVE reserved
02/14/2026 +32 days Advisory disclosed
02/14/2026 +0 days VulDB entry created
04/13/2026 +58 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-23176 (🔒)
GCVE (CVE): GCVE-0-2026-23176
GCVE (VulDB): GCVE-100-346072
EUVD: 🔒
CERT Bund: WID-SEC-2026-0421 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 02/14/2026 18:56
Updated: 04/13/2026 06:22
Changes: 02/14/2026 18:56 (58), 02/15/2026 13:24 (2), 02/19/2026 13:32 (1), 02/20/2026 06:47 (1), 04/13/2026 06:22 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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