This call uses the sock to get the net to lookup the routing
in. With CONFIG_NET_NS this code will OOPS, since the sk ptr
is NULL.
After looking inside the ip6_dst_lookup and drawing the analogy
with respective ipv6 code, it seems, that the dccp ctl socket
is a good candidate for the first argument.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
---
net/dccp/ipv6.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 94d749e..b657dea 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -322,7 +322,7 @@ static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
security_skb_classify_flow(rxskb, &fl);
/* sk = NULL, but it is safe for now. RST socket required. */
- if (!ip6_dst_lookup(NULL, &skb->dst, &fl)) {
+ if (!ip6_dst_lookup(dccp_v6_ctl_sk, &skb->dst, &fl)) {
if (xfrm_lookup(&skb->dst, &fl, NULL, 0) >= 0) {
ip6_xmit(dccp_v6_ctl_sk, skb, &fl, NULL, 0);
DCCP_INC_STATS_BH(DCCP_MIB_OUTSEGS);
--
1.5.3.4
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