wifi: cfg80211: check if AP has been started or joined a mesh before adding new station

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Adding a new station to AP makes only sense when the AP has been started
(nl80211_start_ap()) or joined a mesh (__cfg80211_join_mesh()).

Check if AP is up and beaconing on the link or joined the mesh, when
adding new station. Return error if this isn't the case.

Note that libertas devices need special handling since they do not
implement join_mesh() and the decision must be made on channel
definition.

Reported-by: syzbot+9bdc0c5998ab45b05030@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=9bdc0c5998ab45b05030
Signed-off-by: Slawomir Stepien <sst@poczta.fm>
Link: https://patch.msgid.link/20260910080418.725741-3-sst@poczta.fm
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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Slawomir Stepien 2026-09-10 10:04:18 +02:00 • committed by Johannes Berg

parent e3d1acb027

commit a842cfc1d6

1 changed files with 19 additions and 1 deletions

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net/wireless/nl80211.c

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