Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mac80211: Fixed an error in the ieee80211chanbwchange function for APVLAN stations. The ieee80211chanbwchange function iterates through all stations and accesses link-reserved.oper via sta-sdata-linklinkid. For stations on...

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...

CVE-2026-31394 mac80211: fix crash in ieee80211_chan_bw_change for AP_VLAN stations

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,...