Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge

Included changes ares:
- fix packet parsing routine to avoid to read beyond the packet boundary

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index a0b253ecadaf..a5bb0a769eb9 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1288,7 +1288,8 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
         batadv_ogm_packet = (struct batadv_ogm_packet *)packet_buff;
 
         /* unpack the aggregated packets and process them one by one */
-        do {
+        while (batadv_iv_ogm_aggr_packet(buff_pos, packet_len,
+                                         batadv_ogm_packet->tt_num_changes)) {
                 tt_buff = packet_buff + buff_pos + BATADV_OGM_HLEN;
 
                 batadv_iv_ogm_process(ethhdr, batadv_ogm_packet, tt_buff,
@@ -1299,8 +1300,7 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
 
                 packet_pos = packet_buff + buff_pos;
                 batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
-        } while (batadv_iv_ogm_aggr_packet(buff_pos, packet_len,
-                                           batadv_ogm_packet->tt_num_changes));
+        }
 
         kfree_skb(skb);
         return NET_RX_SUCCESS;