mac80211: make sure data is accessible in EAPOL check
authorJohannes Berg <johannes.berg@intel.com>
Thu, 25 Oct 2012 22:41:23 +0000 (00:41 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 17 Nov 2012 21:16:11 +0000 (13:16 -0800)
commitd39904cae2cb6e0dcbee3f80692b6052515e43ea
treed9d9e329dfa9e729dce5d3b9dcf3692770049c74
parent4435990b6d456a8c5cac203c025d1f10e0b48a93
mac80211: make sure data is accessible in EAPOL check

commit 6dbda2d00d466225f9db1dc695ff852443f28832 upstream.

The code to allow EAPOL frames even when the station
isn't yet marked associated needs to check that the
incoming frame is long enough and due to paged RX it
also can't assume skb->data contains the right data,
it must use skb_copy_bits(). Fix this to avoid using
data that doesn't really exist.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/mac80211/rx.c