diff options
| author | Balaji Pothunoori <bpothuno@codeaurora.org> | 2019-01-21 12:30:43 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-05 17:59:42 +0100 |
| commit | 01be2a3ed188fa09b7cec88173b0a1dff5c1dbf8 (patch) | |
| tree | 448e0b943d3192cddf972d8cdd6256f58247e092 | |
| parent | 89709050b74866b2fee19f0e4b71f23a7475a37b (diff) | |
mac80211: don't initiate TDLS connection if station is not associated to AP
[ Upstream commit 7ed5285396c257fd4070b1e29e7b2341aae2a1ce ]
Following call trace is observed while adding TDLS peer entry in driver
during TDLS setup.
Call Trace:
[<c1301476>] dump_stack+0x47/0x61
[<c10537d2>] __warn+0xe2/0x100
[<fa22415f>] ? sta_apply_parameters+0x49f/0x550 [mac80211]
[<c1053895>] warn_slowpath_null+0x25/0x30
[<fa22415f>] sta_apply_parameters+0x49f/0x550 [mac80211]
[<fa20ad42>] ? sta_info_alloc+0x1c2/0x450 [mac80211]
[<fa224623>] ieee80211_add_station+0xe3/0x160 [mac80211]
[<c1876fe3>] nl80211_new_station+0x273/0x420
[<c170f6d9>] genl_rcv_msg+0x219/0x3c0
[<c170f4c0>] ? genl_rcv+0x30/0x30
[<c170ee7e>] netlink_rcv_skb+0x8e/0xb0
[<c170f4ac>] genl_rcv+0x1c/0x30
[<c170e8aa>] netlink_unicast+0x13a/0x1d0
[<c170ec18>] netlink_sendmsg+0x2d8/0x390
[<c16c5acd>] sock_sendmsg+0x2d/0x40
[<c16c6369>] ___sys_sendmsg+0x1d9/0x1e0
Fixing this by allowing TDLS setup request only when we have completed
association.
Signed-off-by: Balaji Pothunoori <bpothuno@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/mac80211/cfg.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 517dad83c2fa..ac8478876b86 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1494,6 +1494,10 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) sta->sta.tdls = true; + if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && + !sdata->u.mgd.associated) + return -EINVAL; + err = sta_apply_parameters(local, sta, params); if (err) { sta_info_free(local, sta); |