mac80211 Stack Heap Buffer Overflow DoS

The vulnerability of the function ieee80211chanbwchange in the net/mac80211/chan.c module of the mac80211 stack in the Linux operating system is related to the use of pointers. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of...

UBUNTU-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: Undefined Security Weakness

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,...