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Commit 62cf27e5 authored by Steffen Klassert's avatar Steffen Klassert Committed by David S. Miller
Browse files

ipv6: Fix traffic triggered IPsec connections. 



A recent patch removed the dst_free() on the allocated
dst_entry in ipv6_blackhole_route(). The dst_free() marked
the dst_entry as dead and added it to the gc list. I.e. it
was setup for a one time usage. As a result we may now have
a blackhole route cached at a socket on some IPsec scenarios.
This makes the connection unusable.

Fix this by marking the dst_entry directly at allocation time
as 'dead', so it is used only once.

Fixes: 587fea74 ("ipv6: mark DST_NOGC and remove the operation of dst_free()")
Reported-by: default avatarTobias Brunner <tobias@strongswan.org>
Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a9e2971b

net/ipv6/route.c

+1 −1
Original line number Diff line number Diff line
@@ -1325,7 +1325,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori 
	struct dst_entry *new = NULL;



	rt = dst_alloc(&ip6_dst_blackhole_ops, loopback_dev, 1,

		       DST_OBSOLETE_NONE, 0);

		       DST_OBSOLETE_DEAD, 0);

	if (rt) {

		rt6_info_init(rt);