CVE-2026-23396

A flaw was found in the Linux kernel's mac80211 component. An adjacent attacker can exploit this by sending a specially crafted Channel Switch Announcement CSA action frame. This frame, containing a valid Mesh ID Information Element IE but lacking a Mesh Configuration IE, can trigger a NULL point...

CVE-2026-23396

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix NULL deref in meshmatcheslocal meshmatcheslocal unconditionally dereferences ie-meshconfig to compare mesh configuration parameters. When called from meshrxcsaframe, the parsed action-frame elements may not...

CVE-2026-23396

The CVE-2026-23396 issue affects the Linux kernel mac80211 mesh code. The function mesh_matches_local() dereferenced ie->mesh_config without verifying presence, allowing a crafted CSA action frame that includes a Mesh ID IE but omits the Mesh Configuration IE to crash the kernel. The race is t...