CVE-2026-46166
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416, CWE-825
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- 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
- https://access.redhat.com/security/cve/CVE-2026-46166
- https://bugzilla.redhat.com/show_bug.cgi?id=2482645
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.