boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-49934HIGH
Linux Linux — wifi: mac80211: Fix UAF in ieee80211_scan_rx()
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  H  H    7.8   .0023   14.3     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    6ea0a69ca21bbddab5b3979c2190013b0263e749 –  —
  Linux    3.19 –                                      4.9.330
TIMELINE
  May 1   Reserved by Linux
  Jun 18  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2022-49934 (Linux). CVSS 8.8 → 7.8 (NVD).
CWE-416 · CNA: Linux · CVSS v3.1 · 8 references · NVD status: Modified

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().

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
May 1, 2025ReservedReserved by Linux
June 18, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2022-49934 (Linux). CVSS 8.8 → 7.8 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux6ea0a69ca21bbddab5b3979c2190013b0263e749
LinuxLinux3.194.9.330

Weaknesses

CWE-416

References (8)

Related

Authoritative record: CVE-2022-49934 at cve.org

Vendors: linux

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49934 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.