Eric Dumazet caa415270c ipv4: fix a race in update_or_create_fnhe() ...

nh_exceptions is effectively used under rcu, but lacks proper
barriers. Between kzalloc() and setting of nh->nh_exceptions(),
we need a proper memory barrier.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 4895c771c7 ("ipv4: Add FIB nexthop exceptions.")
Signed-off-by: David S. Miller <davem@davemloft.net>

2014-09-05 17:15:50 -07:00

31 KiB

Raw Blame History

View Raw