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.
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).
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
| Date | Event | Detail |
| May 1, 2025 | Reserved | Reserved by Linux |
| June 18, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-49934 (Linux). CVSS 8.8 → 7.8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 6ea0a69ca21bbddab5b3979c2190013b0263e749 | — |
| Linux | Linux | — | 3.19 | 4.9.330 |
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.