diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2026-09-08 14:28:14 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2026-09-09 14:51:30 +0200 |
| commit | 038e1d126304fd25d507fd4e671232df57bd1799 (patch) | |
| tree | 691f1ab23201548c3656cb7e67763884b42b656e | |
| parent | 4504f3960dc4501c73be9f99eabda2e26e9db41e (diff) | |
| download | linux-next-038e1d126304fd25d507fd4e671232df57bd1799.tar.gz linux-next-038e1d126304fd25d507fd4e671232df57bd1799.zip | |
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.
Assisted-by: LLM
Fixes: 6f7eaa47e1de ("mac80211: add TDLS QoS param IE on setup-confirm")
Reported-by: syzbot+e55106f8389651870be0@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=e55106f8389651870be0
Link: https://patch.msgid.link/20260908122838.201719-15-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/tdls.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index 7f40b1d62938..f663d28d9209 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -1281,6 +1281,24 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, peer_capability, initiator, extra_ies, extra_ies_len); break; + case WLAN_TDLS_SETUP_CONFIRM: { + struct sta_info *sta; + + sta = sta_info_get(sdata, peer); + if (!sta || !sta->sta.tdls) { + ret = -ENOLINK; + break; + } + + ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer, + link_id, action_code, + dialog_token, + status_code, + peer_capability, + initiator, extra_ies, + extra_ies_len, 0, NULL); + break; + } case WLAN_TDLS_DISCOVERY_REQUEST: /* * Protect the discovery so we can hear the TDLS discovery @@ -1289,7 +1307,6 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, */ drv_mgd_protect_tdls_discover(sdata->local, sdata, link_id); fallthrough; - case WLAN_TDLS_SETUP_CONFIRM: case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: /* no special handling */ ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer, |