Eric Dumazet 65a3c497c0 ipv6: flowlabel: fl6_sock_lookup() must use atomic_inc_not_zero
Before taking a refcount, make sure the object is not already
scheduled for deletion.

Same fix is needed in ipv6_flowlabel_opt()

Fixes: 18367681a10b ("ipv6 flowlabel: Convert np->ipv6_fl_list to RCU.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-09 13:07:14 -07:00
..
2019-05-21 12:33:38 -07:00
2019-05-31 08:34:32 -07:00