CVE-2026-46166 HIGH

CVE-2026-46166: wifi: mac80211: use safe list iteration in radar detect work

Vendor Linux
Product Linux
Published May 28, 2026
Last update June 30, 2026

CVSS base score

8.8/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use safe list iteration in radar detect work The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.

Key dates

02Disclosure timeline

May 28, 2026 CVE published
June 30, 2026 Record updated