CVE-2023-53229: 
Linux Kernel vulnerability analysis and mitigation

CVE-2023-53229 is a vulnerability in the Linux kernel's wifi: mac80211 subsystem caused by invalid drv_sta_pre_rcu_remove calls for non-uploaded station (STA) entries, which can lead to uninitialized driver private data structures and potential data corruption. It affects Linux kernel versions from 3.14 through multiple stable branches, with fixed versions including 4.14.313, 4.19.281, 5.4.241, 5.10.178, 5.15.107, 6.1.24, 6.2.11, and 6.3. The vulnerability was published on September 15, 2025, and carries a CVSS v3.1 base score of 5.5 (Medium) (Red Hat CVE, Feedly).

The root cause is improper handling of driver callback invocations in the mac80211 Wi-Fi stack (CWE-908: Use of Uninitialized Resource). Specifically, drv_sta_pre_rcu_remove is called for station objects that have not been uploaded to the driver, meaning the driver's private data structures for those stations are uninitialized at the time of the call. This is a local attack vector requiring low privileges and no user interaction, and exploitation could corrupt kernel data structures related to Wi-Fi station management (Red Hat CVE, Red Hat Bugzilla).

Successful exploitation by a local, low-privileged attacker could cause data corruption in the kernel's Wi-Fi subsystem, primarily impacting system availability — for example, disrupting or destabilizing Wi-Fi connectivity on the affected host. There is no assessed confidentiality or integrity impact. The scope is limited to the local system, with no evidence of lateral movement potential (Red Hat CVE).

There is no public proof-of-concept exploit and no evidence of in-the-wild exploitation as of the time of publication. The EPSS score is approximately 0.024% (0.000240), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, and no threat actor attribution has been reported (Feedly).

Apply the appropriate patched Linux kernel version for your branch: 4.14.313, 4.19.281, 5.4.241, 5.10.178, 5.15.107, 6.1.24, 6.2.11, or 6.3 (stable). Prioritize patching systems that use Wi-Fi functionality. If immediate patching is not feasible, consider temporarily restricting local user access on affected systems as a short-term measure (Red Hat CVE, Red Hat Bugzilla).