Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bca8bc0399ac2efd56e6adbed0307e10125a556c before 887ece6c23b49d02a6678e7a8d5ad213d75883ce; affected bca8bc0399ac2efd56e6adbed0307e10125a556c before 7577a4b8a10fab45a6ee2045ea038a5adadbb585; affected bca8bc0399ac2efd56e6adbed0307e10125a556c before 120149fb3ebcf674832ca3cafd32bedcdb686dde; affected bca8bc0399ac2efd56e6adbed0307e10125a556c before ac8eb3e18f41e2cc8492cc1d358bcb786c850270 |
| Linux / Linux | affected 6.12; unaffected 0 before 6.12; unaffected 6.12.88 through 6.12.*; unaffected 6.18.30 through 6.18.*; unaffected 7.0.7 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
A flaw was found in the Linux kernel's mac80211 wireless subsystem. This vulnerability arises from unsafe list iteration during radar detection work, where a channel context can be freed while still being processed. This can lead to a use-after-free memory error. A successful exploit could result in system instability or a denial of service.
- 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
- https://access.redhat.com/errata/RHSA-2026:33215
- https://access.redhat.com/errata/RHSA-2026:27288
- https://access.redhat.com/errata/RHSA-2026:27708
- https://access.redhat.com/errata/RHSA-2026:27789
No English description supplied.
No references supplied.