Answer in brief
CVE-2026-46166 records a High severity (CVSS 8.8) vulnerability in wifi: mac80211: use safe list iteration in radar detect work. The current sources do not mark it as known exploited. The current feed maps Red Hat/kernel-rt (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/kernel-rt (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/kernel-rtgeneric | * | Not reported |
| Linux/Linuxgeneric | >=bca8bc0399ac2efd56e6adbed0307e10125a556c <887ece6c23b49d02a6678e7a8d5ad213d75883ce || >=bca8bc0399ac2efd56e6adbed0307e10125a556c <7577a4b8a10fab45a6ee2045ea038a5adadbb585 || >=bca8bc0399ac2efd56e6adbed0307e10125a556c <120149fb3ebcf674832ca3cafd32bedcdb686dde || >=bca8bc0399ac2efd56e6adbed0307e10125a556c <ac8eb3e18f41e2cc8492cc1d358bcb786c850270 | 887ece6c23b49d02a6678e7a8d5ad213d75883ce, 7577a4b8a10fab45a6ee2045ea038a5adadbb585, 120149fb3ebcf674832ca3cafd32bedcdb686dde, ac8eb3e18f41e2cc8492cc1d358bcb786c850270 |
| Linux/Linuxgeneric | 6.12 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 9, 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.
Quoted source text, attributed separately from HOL analysis.