CVE-2025-71273

Analyzed Analyzed - Analysis Complete

Memory Leak in Linux Kernel WiFi Driver

Publication date: 2026-05-06

Last updated on: 2026-06-05

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Use devm_kmemdup() in rtw_set_supported_band() Simplify the code by using device managed memory allocations. This also fixes a memory leak in rtw_register_hw(). The supported bands were not freed in the error path. Copied from commit 145df52a8671 ("wifi: rtw89: Convert rtw89_core_set_supported_band to use devm_*").

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-06

Last Modified

2026-06-05

Generated

2026-07-06

AI Q&A

2026-05-06

EPSS Evaluated

2026-07-05

NVD

CVE-2025-71273

EUVD

EUVD-2025-209673

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 6.13 (inc) to 6.18.16 (exc)
linux	linux_kernel	From 6.19 (inc) to 6.19.6 (exc)
linux	linux_kernel	From 5.2 (inc) to 6.12.75 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is related to the Linux kernel's wifi driver, specifically the rtw88 module. It involves improper memory management where supported bands were not freed properly in the error path of the rtw_register_hw() function, causing a memory leak.

The fix involved simplifying the code by using device managed memory allocations through the devm_kmemdup() function in rtw_set_supported_band(), which ensures that memory is automatically freed when no longer needed.

Impact Analysis

This vulnerability can lead to a memory leak in the Linux kernel's wifi driver. Over time, this could cause increased memory usage, potentially degrading system performance or causing instability.

Hi! I’m here to help you understand CVE-2025-71273. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70