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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2012-05-04 09:24:54 +0400
committerDavid S. Miller <davem@davemloft.net>2012-05-11 07:15:47 +0400
commite0268868ba064980488fc8c194db3d8e9fb2959c (patch)
tree7b8bfb4cceb0a5d184a2fe651aab5aec59a216d3 /net/sctp/output.c
parentc57b54684060c8aced64a5b78ff69ff289af97b9 (diff)
downloadlinux-e0268868ba064980488fc8c194db3d8e9fb2959c.tar.xz
sctp: check cached dst before using it
dst_check() will take care of SA (and obsolete field), hence IPsec rekeying scenario is taken into account. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Vlad Yaseivch <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/output.c')
-rw-r--r--net/sctp/output.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 817174eb5f41..8fc4dcd294ab 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -377,9 +377,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
*/
skb_set_owner_w(nskb, sk);
- /* The 'obsolete' field of dst is set to 2 when a dst is freed. */
- if (!dst || (dst->obsolete > 1)) {
- dst_release(dst);
+ if (!sctp_transport_dst_check(tp)) {
sctp_transport_route(tp, NULL, sctp_sk(sk));
if (asoc && (asoc->param_flags & SPP_PMTUD_ENABLE)) {
sctp_assoc_sync_pmtu(asoc);