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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2019-08-25 19:01:32 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-28 00:05:58 +0200 |
| commit | 981471bd3abf4d572097645d765391533aac327d (patch) | |
| tree | e06afa7cebab28ab9e7a123b7a9b499450f23687 /net/sched/act_nat.c | |
| parent | Merge tag 'nfs-for-5.3-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs (diff) | |
| download | linux-981471bd3abf4d572097645d765391533aac327d.tar.xz linux-981471bd3abf4d572097645d765391533aac327d.zip | |
net_sched: fix a NULL pointer deref in ipt action
The net pointer in struct xt_tgdtor_param is not explicitly
initialized therefore is still NULL when dereferencing it.
So we have to find a way to pass the correct net pointer to
ipt_destroy_target().
The best way I find is just saving the net pointer inside the per
netns struct tcf_idrinfo, which could make this patch smaller.
Fixes: 0c66dc1ea3f0 ("netfilter: conntrack: register hooks in netns when needed by ruleset")
Reported-and-tested-by: itugrok@yahoo.com
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_nat.c')
| -rw-r--r-- | net/sched/act_nat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c index 7b858c11b1b5..ea4c5359e7df 100644 --- a/net/sched/act_nat.c +++ b/net/sched/act_nat.c @@ -327,7 +327,7 @@ static __net_init int nat_init_net(struct net *net) { struct tc_action_net *tn = net_generic(net, nat_net_id); - return tc_action_net_init(tn, &act_nat_ops); + return tc_action_net_init(net, tn, &act_nat_ops); } static void __net_exit nat_exit_net(struct list_head *net_list) |