Improper Synchronization in Linux kernel - CVE-2026-23373
Published: March 25, 2026
Vulnerability identifier: #VU124472
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2026-23373
CWE-ID: CWE-662
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper return value handling in the rsi_mac80211_config function within the RSI Wi-Fi driver when configuring 802.11 hardware. A local user can trigger a misconfigured hardware initialization to cause a denial of service.
The issue arises because the driver defaults to returning -EOPNOTSUPP instead of 0 during configuration, which triggers a WARN_ON in ieee80211_hw_conf_init, leading to disruptive behavior.
How to mitigate CVE-2026-23373
Install security update from vendor's repository.