Eric Dumazet 3006bc3889
bonding: fix a race in IGMP handling ...
RCU conversion in IGMP code done in net-next-2.6 raised a race in
__bond_resend_igmp_join_requests().
It iterates in_dev->mc_list without appropriate protection (RTNL, or
read_lock on in_dev->mc_list_lock).
Another cpu might delete an entry while we use it and trigger a fault.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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3006bc3889