From: Johannes Berg johannes.berg@intel.com
commit 588f7d39b3592a36fb7702ae3b8bdd9be4621e2f upstream.
When receiving a robust management frame, drop it if we don't have rx->sta since then we don't have a security association and thus couldn't possibly validate the frame.
Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- net/mac80211/rx.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3823,6 +3823,8 @@ static bool ieee80211_accept_frame(struc case NL80211_IFTYPE_STATION: if (!bssid && !sdata->u.mgd.use_4addr) return false; + if (ieee80211_is_robust_mgmt_frame(skb) && !rx->sta) + return false; if (multicast) return true; return ether_addr_equal(sdata->vif.addr, hdr->addr1);