CVE-2026-46166
wifi: mac80211: use safe list iteration in radar detect work
- State
- Published
- Severity
- 8.8 High
- Published
- May 28, 2026
- Updated
- Oct 19, 2026
- Reserved
- May 13, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| 3.1 | 7.0 High | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883ce
- https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585
- https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde
- https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270
- https://access.redhat.com/security/cve/CVE-2026-46166vdb-entry
- RHBZ#2482645issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.json
- https://access.redhat.com/errata/RHSA-2026:33215vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:27288vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:27708vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:27789vendor-advisory
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