| commit | caa415270c732505240bb60171c44a7838c555e8 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Wed Sep 03 22:21:56 2014 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Fri Sep 05 17:15:50 2014 -0700 |
| tree | cd44cd81f85c3904340f5cef1a359e2ae97a0c20 | |
| parent | 29abe2fda54f8e16ecff5d76d96325f31508d5ba [diff] |
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: 4895c771c7f00 ("ipv4: Add FIB nexthop exceptions.")
Signed-off-by: David S. Miller <davem@davemloft.net>