CVE-2026-46166
Not scored
wifi: mac80211: use safe list iteration in radar detect work
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.
Exploit probability
0.2%
Published
May 28, 2026
Required by
Not available
Last source change
July 22, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-46166
View original source
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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2026:27288
- https://access.redhat.com/errata/RHSA-2026:27708
- https://access.redhat.com/errata/RHSA-2026:27789
- https://access.redhat.com/errata/RHSA-2026:33215
- https://access.redhat.com/security/cve/CVE-2026-46166
- https://bugzilla.redhat.com/show_bug.cgi?id=2482645
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde
- https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585
- https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883ce
- https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46166.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-46166
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.json