path: root/net/sched/act_bpf.c
diff options
authorCong Wang <xiyou.wangcong@gmail.com>2019-08-25 10:01:32 -0700
committerDavid S. Miller <davem@davemloft.net>2019-08-27 15:05:58 -0700
commit981471bd3abf4d572097645d765391533aac327d (patch)
treee06afa7cebab28ab9e7a123b7a9b499450f23687 /net/sched/act_bpf.c
parentMerge tag 'nfs-for-5.3-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs (diff)
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 '')
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index fd1f7e799e23..04b7bd4ec751 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -422,7 +422,7 @@ static __net_init int bpf_init_net(struct net *net)
struct tc_action_net *tn = net_generic(net, bpf_net_id);
- return tc_action_net_init(tn, &act_bpf_ops);
+ return tc_action_net_init(net, tn, &act_bpf_ops);
static void __net_exit bpf_exit_net(struct list_head *net_list)