From: Johannes Berg <johannes.berg@xxxxxxxxx>
If the assoc link doesn't exist yet at this point, we
cannot use it yet. This isn't normally the case, but
e.g. in case of FT-DS (or just broken userspace) the
link might not be set up yet and will only be created
later in this function. Check that the link exists.
Fixes: 310c8387c638 ("wifi: mac80211: clean up connection process")
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Closes: https://lore.kernel.org/r/3151f5d0-c18f-413d-b34b-b94f095b947c@moroto.mountain
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/mlme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 89c4165f2753..c60d23da91fe 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -8173,7 +8173,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
eth_random_addr(assoc_data->link[i].addr);
sband = local->hw.wiphy->bands[link_cbss->channel->band];
- if (match_auth && i == assoc_link_id)
+ if (match_auth && i == assoc_link_id && link)
assoc_data->link[i].conn = link->u.mgd.conn;
else
assoc_data->link[i].conn =
--
2.44.0
