CVE-2026-46166wifi: mac80211: use safe list iteration in radar detect work
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-825
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from bca8bc0399ac2efd56e6adbed0307e10125a556c before 887ece6c23b49d02a6678e7a8d5ad213d75883ce; from bca8bc0399ac2efd56e6adbed0307e10125a556c before 7577a4b8a10fab45a6ee2045ea038a5adadbb585; from bca8bc0399ac2efd56e6adbed0307e10125a556c before 120149fb3ebcf674832ca3cafd32bedcdb686dde; from bca8bc0399ac2efd56e6adbed0307e10125a556c before ac8eb3e18f41e2cc8492cc1d358bcb786c850270 | CNA record |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:6.12.0-211.26.1.el10_2 not affected | CISA ADP |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:6.12.0-55.84.1.el10_0 not affected | CISA ADP |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:5.14.0-570.123.1.el9_6 not affected | CISA ADP |
linux linux_kernel linux:linux_kernel | from 6.12 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 7.1; 7.1 | NVD |
References
- https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883cepatch
- https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585patch
- https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686ddepatch
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.