SUSE CVE-2026-31394

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211chanbwchange for APVLAN stations ieee80211chanbwchange iterates all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on APVLAN interfaces e.g. 4addr WDS clients,...

CVE-2026-31394

CVE-2026-31394 concerns the Linux kernel mac80211 path where AP_VLAN (4addr) stations can trigger a NULL pointer dereference in __ieee80211_sta_cap_rx_bw() due to sta->sdata pointing to VLAN sdata, which may not participate in chanctx reservations. The root cause is that link->reserved.oper...