CVE-2026-46166
HIGH severity · CVSS 8.8 · Use-after-free
8.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686ddePatch
- https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585Patch
- https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883cePatch
- https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270Patch
- 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