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authorHiroaki SHIMODA <shimoda.hiroaki@gmail.com>2011-02-10 23:08:33 -0800
committerDavid S. Miller <davem@davemloft.net>2011-02-10 23:08:33 -0800
commit0b150932197b185ad5816932912e648116c7a96a (patch)
tree3b3092f2876be20a48088ee0d1cf29cf6028c843
parent520732af9158308e96245b54f1d573861eafb631 (diff)
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xfrm: avoid possible oopse in xfrm_alloc_dst
Commit 80c802f3073e84 (xfrm: cache bundles instead of policies for outgoing flows) introduced possible oopse when dst_alloc returns NULL. Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/xfrm/xfrm_policy.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 8b3ef40..6459588 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1340,10 +1340,13 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
default:
BUG();
}
- xdst = dst_alloc(dst_ops) ?: ERR_PTR(-ENOBUFS);
+ xdst = dst_alloc(dst_ops);
xfrm_policy_put_afinfo(afinfo);
- xdst->flo.ops = &xfrm_bundle_fc_ops;
+ if (likely(xdst))
+ xdst->flo.ops = &xfrm_bundle_fc_ops;
+ else
+ xdst = ERR_PTR(-ENOBUFS);
return xdst;
}