VULNERABILITY INTELLIGENCE

CVE-2022-49934

CVSS score8.8 HIGH
EPSS probability0.23%
CISA KEVNot currently listed
Published2025-06-18
Last modified2026-08-04
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211_scan_rx() ieee80211_scan_rx() tries to access scan_req->flags after a null check, but a UAF is observed when the scan is completed and __ieee80211_scan_completed() executes, which then calls cfg80211_scan_done() leading to the freeing of scan_req. Since scan_req is rcu_dereference()'d, prevent the racing in __ieee80211_scan_completed() by ensuring that from mac80211's POV it is no longer accessed from an RCU read critical section before we call cfg80211_scan_done().

Weakness classification

  • nvd@nist.gov: CWE-416

Primary references