bonding: fix a race in IGMP handling

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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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Eric Dumazet 2010-11-18 09:30:42 -08:00 • committed by David S. Miller

parent 28cb6ccd2c

commit 3006bc3889

1 changed files with 2 additions and 0 deletions

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drivers/net/bonding/bond_main.c

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