Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: require a peer station for TDLS setup confirm It's nonsense for the setup confirm to go to station that doesn't even exist, and it hits a warning when building the frame: WARN_ON_ONCE(!sta || !ap_sta) Only accept WLAN_TDLS_SETUP_CONFIRM when the station is already there as a TDLS station. Need to copy the call to ieee80211_tdls_prep_mgmt_packet() since the existing WLAN_TDLS_DISCOVERY_REQUEST already falls through to it.

[ 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-Bund14 Oct 2026WID-SEC-2026-3951

  Linux Kernel: Multiple vulnerabilities Translated from German

  CVE-2026-98426CVE-2026-98416CVE-2026-98393+43 more CVEs

[ References ]References

• git.kernel.org/stable/c/038e1d126304fd25d507fd4e671232df57bd1799
• git.kernel.org/stable/c/1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b
• git.kernel.org/stable/c/6bae6ef511a29ef12ab969adeea691067d4d5d74
• git.kernel.org/stable/c/742c762bee59c973684f70dfed7de4945d3141e2
• git.kernel.org/stable/c/d0afa5395c46d73ad2090aa50209886e84f179bd
• git.kernel.org/stable/c/fce36d242a18ddf64731d816a37564103172da11