Linux Kernel up to 6.3.3 wifi usb.c rtw_usb_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, which was classified as critical, was found in Linux Kernel up to 6.3.3. This issue affects the function rtw_usb_probe of the file drivers/net/wireless/realtek/rtw88/usb.c of the component wifi. Such manipulation leads to memory leak. This vulnerability is traded as CVE-2023-53460. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.3.3. Affected by this issue is the function rtw_usb_probe of the file drivers/net/wireless/realtek/rtw88/usb.c of the component wifi. 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: fix memory leak in rtw_usb_probe() drivers/net/wireless/realtek/rtw88/usb.c:876 rtw_usb_probe() warn: 'hw' from ieee80211_alloc_hw() not released on lines: 811 Fix this by modifying return to a goto statement.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2023-53460 since 10/01/2025. Technical details are known, but there is no available exploit.

Upgrading to version 6.3.4 eliminates this vulnerability. Applying the patch 6cc92379b80af005e1f49ef6ef790cddc58cf0da/48181d285623198c33bb9698992502687b258efa 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 EUVD (EUVD-2025-32804) and CERT Bund (WID-SEC-2025-2187). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.3.4
Patch: 6cc92379b80af005e1f49ef6ef790cddc58cf0da/48181d285623198c33bb9698992502687b258efa

Timelineinfo

10/01/2025 Advisory disclosed
10/01/2025 +0 days CVE reserved
10/01/2025 +0 days VulDB entry created
01/17/2026 +108 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53460 (🔒)
GCVE (CVE): GCVE-0-2023-53460
GCVE (VulDB): GCVE-100-326594
EUVD: 🔒
CERT Bund: WID-SEC-2025-2187 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 10/01/2025 15:04
Updated: 01/17/2026 19:53
Changes: 10/01/2025 15:04 (60), 11/24/2025 04:00 (7), 01/17/2026 01:28 (10), 01/17/2026 19:53 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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