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xfrm: Initialize the struct xfrm_dst behind the dst_enty field

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We start initializing the struct xfrm_dst 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 xfrm_dst 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>
This commit is contained in:
Steffen Klassert 2012-07-05 23:39:34 +00:00 committed by David S. Miller
parent 8104891b86
commit 141e369de6
1 changed files with 3 additions and 2 deletions
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5
net/xfrm/xfrm_policy.c
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@ -1353,8 +1353,9 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
xdst = dst_alloc(dst_ops, NULL, 0, 0, 0);
if (likely(xdst)) {
memset(&xdst->u.rt6.rt6i_table, 0,
sizeof(*xdst) - sizeof(struct dst_entry));
struct dst_entry *dst = &xdst->u.dst;
memset(dst + 1, 0, sizeof(*xdst) - sizeof(*dst));
xdst->flo.ops = &xfrm_bundle_fc_ops;
} else
xdst = ERR_PTR(-ENOBUFS);