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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2012-07-05 23:37:09 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-14 00:29:12 -0700 |
| commit | 8104891b86b212de77063660c0c062b427526fa6 (patch) | |
| tree | a90d026f1b2d43a368307880b967fa6ee45f64e5 /net/ipv6/route.c | |
| parent | 921a678cb6825900478f1e8e9c59035f8c67aa32 (diff) | |
| download | lwn-8104891b86b212de77063660c0c062b427526fa6.tar.gz lwn-8104891b86b212de77063660c0c062b427526fa6.zip | |
ipv6: Initialize the struct rt6_info behind the dst_enty field
We start initializing the struct rt6_info at the first field
behind the struct dst_enty. This is error prone because it
might leave a new field uninitialized. So start initializing
the struct rt6_info right behind the dst_entry.
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3151aabff5fd..2a4c8d48977f 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -280,8 +280,9 @@ static inline struct rt6_info *ip6_dst_alloc(struct net *net, 0, 0, flags); if (rt) { - memset(&rt->n, 0, - sizeof(*rt) - sizeof(struct dst_entry)); + struct dst_entry *dst = &rt->dst; + + memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst)); rt6_init_peer(rt, table ? &table->tb6_peers : net->ipv6.peers); } return rt; @@ -982,11 +983,11 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori rt = dst_alloc(&ip6_dst_blackhole_ops, ort->dst.dev, 1, 0, 0); if (rt) { - memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry)); - rt6_init_peer(rt, net->ipv6.peers); - new = &rt->dst; + memset(new + 1, 0, sizeof(*rt) - sizeof(*new)); + rt6_init_peer(rt, net->ipv6.peers); + new->__use = 1; new->input = dst_discard; new->output = dst_discard; |