Linux kernel: TDLS STA check fix (CVE-2026-98421)
CVE-2026-98421 Published on October 14, 2026
wifi: mac80211: require a peer station for TDLS setup confirm
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.
Products Associated with CVE-2026-98421
Want to know whenever a new CVE is published for Linux Kernel? stack.watch will email you.
Affected Versions
Linux:- Version 6f7eaa47e1de30159277f91f1145a6687f13ffd9 and below 6bae6ef511a29ef12ab969adeea691067d4d5d74 is affected.
- Version 6f7eaa47e1de30159277f91f1145a6687f13ffd9 and below d0afa5395c46d73ad2090aa50209886e84f179bd is affected.
- Version 6f7eaa47e1de30159277f91f1145a6687f13ffd9 and below 742c762bee59c973684f70dfed7de4945d3141e2 is affected.
- Version 6f7eaa47e1de30159277f91f1145a6687f13ffd9 and below fce36d242a18ddf64731d816a37564103172da11 is affected.
- Version 6f7eaa47e1de30159277f91f1145a6687f13ffd9 and below 1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b is affected.
- Version 6f7eaa47e1de30159277f91f1145a6687f13ffd9 and below 038e1d126304fd25d507fd4e671232df57bd1799 is affected.
- Version 3.17 is affected.
- Before 3.17 is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.54, <= 6.18.* is unaffected.
- Version 7.2.8, <= 7.2.* is unaffected.
- Version 7.3-rc4, <= * is unaffected.