SB20260509107 - Improper input validation in Linux kernel realtek rtw88 driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260509107

SB20260509107 - Improper input validation in Linux kernel realtek rtw88 driver

Published: May 9, 2026

Security Bulletin ID SB20260509107
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper input validation (CVE-ID: CVE-2025-71297)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state validation in rtw8822b_set_antenna() and rtw8822b_config_trx_mode() when handling userspace antenna configuration requests while the chip is powered off. A local user can send a crafted netlink request to trigger a kernel warning and cause a denial of service.

The issue is triggered when the device is powered off.


Remediation

Install update from vendor's website.

References