CVE-2026-46166

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbca8bc0399ac2efd56e6adbed0307e10125a556c < 887ece6c23b49d02a6678e7a8d5ad213d75883ceaffected
LinuxLinuxbca8bc0399ac2efd56e6adbed0307e10125a556c < 7577a4b8a10fab45a6ee2045ea038a5adadbb585affected
LinuxLinuxbca8bc0399ac2efd56e6adbed0307e10125a556c < 120149fb3ebcf674832ca3cafd32bedcdb686ddeaffected
LinuxLinuxbca8bc0399ac2efd56e6adbed0307e10125a556c < ac8eb3e18f41e2cc8492cc1d358bcb786c850270affected
LinuxLinux6.12affected
LinuxLinux0 < 6.12unaffected
LinuxLinux6.12.88 <= 6.12.*unaffected
LinuxLinux6.18.30 <= 6.18.*unaffected
LinuxLinux7.0.7 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

ADP Enrichment

kernel: wifi: mac80211: use safe list iteration in radar detect work

Additional References

References