Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: clear stale link state on full reset
After a full chip reset, mac80211 reconfig replays interface, link and channel context setup. mt7996_vif_link_add() short-circuits when the link_id is still marked in mvif->valid_links, a state introduced for postponing link teardown to interface removal. The reset path frees the link structures without clearing those bits, so the replayed setup never re-creates dev_info/bss_info/STA records in the restarted firmware and never re-registers the link wcid, leaving the device inoperative.
The reset path also leaks every allocated MLD index: per-link indices and the per-vif group/remap indices are re-allocated from scratch during reconfig, but the old bits stay set in the masks, so repeated full resets exhaust the index space.
Clear valid_links in the reset vif iterator and reset the MLD index masks alongside the existing omac_mask clearing.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ace5d3b6b49e8391beb4d7244348ba7da5298878, < e512823aabbdc91444b9d886638f059ef58e86b1; >= ace5d3b6b49e8391beb4d7244348ba7da5298878, < fc3762724a36867c1749233c43368c2637ecf029; >= ace5d3b6b49e8391beb4d7244348ba7da5298878, < 75d2a4e2129b58bb0ddb842387299038495aad2a |
| Linux | Linux | 6.18 |
References
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received