Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: add HE 6 GHz capability in the scan elems len The HE 6 GHz Band Capability element is in the probe request for every band if 6 GHz is supported, so add the size to scan_ies_len. Otherwise, building probe request elements can fail, triggering the WARN_ON in __ieee80211_start_scan().

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund5 Oct 2026WID-SEC-2026-3743

  Linux Kernel: Multiple vulnerabilities Translated from German

  Risk mediumCVE-2026-98221CVE-2026-98181CVE-2026-98248+204 more CVEs

[ References ]References

• git.kernel.org/stable/c/8659bd6c4c852096b6621086d1ea38eed84b454a
• git.kernel.org/stable/c/9d83c08dcce808c732988a5291e3ef4f59d09edb
• git.kernel.org/stable/c/ad5bd0f6a0c337a80c141ea8e6c7a1d9c145be79
• git.kernel.org/stable/c/be7bfdea1ec9b672a80c736bd6ed932e1adebef8
• git.kernel.org/stable/c/cd54bf333f5631d3630bab0a832e9ae648f73515
• git.kernel.org/stable/c/db19d5414227d86cee77a000607a6710d7f36853