5.1-stable patches

[thirdparty/kernel/stable-queue.git] / releases / 3.19.4 / mac80211-drop-unencrypted-frames-in-mesh-fwding.patch

From d0c22119f574b851e63360c6b8660fe9593bbc3c Mon Sep 17 00:00:00 2001
From: Bob Copeland <me@bobcopeland.com>
Date: Mon, 2 Mar 2015 14:28:52 -0500
Subject: mac80211: drop unencrypted frames in mesh fwding

From: Bob Copeland <me@bobcopeland.com>

commit d0c22119f574b851e63360c6b8660fe9593bbc3c upstream.

The mesh forwarding path was not checking that data
frames were protected when running an encrypted network;
add the necessary check.

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/mac80211/rx.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2191,6 +2191,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80
 	hdr = (struct ieee80211_hdr *) skb->data;
 	mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
 
+	if (ieee80211_drop_unencrypted(rx, hdr->frame_control))
+		return RX_DROP_MONITOR;
+
 	/* frame is in RMC, don't forward */
 	if (ieee80211_is_data(hdr->frame_control) &&
 	    is_multicast_ether_addr(hdr->addr1) &&