diff options
| author | Steffen Klassert <steffen.klassert@secunet.com> | 2017-10-09 08:39:43 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-09 09:39:26 -0700 |
| commit | 62cf27e52b8c9a39066172ca6b6134cb5eaa9450 (patch) | |
| tree | 3a7344dd70fcc2425c315488368f5342a3fe3508 | |
| parent | a9e2971b8cd3ef469de0112ba15778b5b98ad72e (diff) | |
| download | linux-rseq-62cf27e52b8c9a39066172ca6b6134cb5eaa9450.tar.gz | |
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: 587fea741134 ("ipv6: mark DST_NOGC and remove the operation of dst_free()")
Reported-by: Tobias Brunner <tobias@strongswan.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/route.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 26cc9f483b6d28..a96d5b385d8fa2 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -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); |