CVE-2026-46166

wifi: mac80211: use safe list iteration in radar detect work

Published: 5/28/2026 Last updated: 8/5/2026 Reserved: 5/13/2026

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.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Metrics

Version	Score	Severity	Vector String
3.1	8.8	High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (4)

Product	Vendor	Version
Linux	Linux	< 10.0.17763.4645
Linux	Linux	< 10.0.20348.1850
Linux	Linux	< 21.3R3-S5
Linux	Linux	< 22.2R3-S1

CVE-2026-46166

wifi: mac80211: use safe list iteration in radar detect work

Metrics

Opam packages affected (29)

Products affected (4)

References (22)