Linux Kernel up to 6.3.1 net wx_alloc_page_pool 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, which was classified as critical, has been found in Linux Kernel up to 6.3.1. This impacts the function wx_alloc_page_pool of the component net. This manipulation causes memory leak. This vulnerability is handled as CVE-2023-54231. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.3.1. Affected by this vulnerability is the function wx_alloc_page_pool of the component net. 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: net: libwx: fix memory leak in wx_setup_rx_resources When wx_alloc_page_pool() failed in wx_setup_rx_resources(), it doesn't release DMA buffer. Add dma_free_coherent() in the error path to release the DMA buffer.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2023-54231 since 12/30/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 281702 (Linux Distros Unpatched Vulnerability : CVE-2023-54231), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.3.2 eliminates this vulnerability. Applying the patch 2371e1ecd445baf793a74db00ea6b2a2bc13c4c0/e315e7b83a22043bffee450437d7089ef373cbf6 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 (281702) and CERT Bund (WID-SEC-2025-2941). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • IBM Power Hardware Management Console
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • IBM DataPower Gateway

Productinfo

Type

Vendor

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

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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: 281702
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-54231

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.3.2
Patch: 2371e1ecd445baf793a74db00ea6b2a2bc13c4c0/e315e7b83a22043bffee450437d7089ef373cbf6

Timelineinfo

12/30/2025 Advisory disclosed
12/30/2025 +0 days CVE reserved
12/30/2025 +0 days VulDB entry created
04/27/2026 +117 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-54231 (🔒)
GCVE (CVE): GCVE-0-2023-54231
GCVE (VulDB): GCVE-100-338941
CERT Bund: WID-SEC-2025-2941 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/30/2025 16:34
Updated: 04/27/2026 00:10
Changes: 12/30/2025 16:34 (59), 01/01/2026 11:47 (11), 01/06/2026 07:56 (2), 04/27/2026 00:10 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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