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netfilter: nf_conntrack: register pernet subsystem before register L4 proto 

In (c296bb4 netfilter: nf_conntrack: refactor l4proto support for netns)
the l4proto gre/dccp/udplite/sctp registration happened before the pernet
subsystem, which is wrong.

Register pernet subsystem before register L4proto since after register
L4proto, init_conntrack may try to access the resources which allocated
in register_pernet_subsys.

Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Gao feng 2013-03-07 17:20:46 +00:00 committed by Pablo Neira Ayuso
parent cca7af3889
commit 0d98da5d84
4 changed files with 24 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
net/netfilter/nf_conntrack_proto_dccp.c
View File

@ -969,6 +969,10 @@ static int __init nf_conntrack_proto_dccp_init(void)
{ {
int ret; int ret;
ret = register_pernet_subsys(&dccp_net_ops);
if (ret < 0)
goto out_pernet;
ret = nf_ct_l4proto_register(&dccp_proto4); ret = nf_ct_l4proto_register(&dccp_proto4);
if (ret < 0) if (ret < 0)
goto out_dccp4; goto out_dccp4;
@ -977,16 +981,12 @@ static int __init nf_conntrack_proto_dccp_init(void)
if (ret < 0) if (ret < 0)
goto out_dccp6; goto out_dccp6;
ret = register_pernet_subsys(&dccp_net_ops);
if (ret < 0)
goto out_pernet;
return 0; return 0;
out_pernet:
nf_ct_l4proto_unregister(&dccp_proto6);
out_dccp6: out_dccp6:
nf_ct_l4proto_unregister(&dccp_proto4); nf_ct_l4proto_unregister(&dccp_proto4);
out_dccp4: out_dccp4:
unregister_pernet_subsys(&dccp_net_ops);
out_pernet:
return ret; return ret;
} }

12
net/netfilter/nf_conntrack_proto_gre.c
View File

@ -420,18 +420,18 @@ static int __init nf_ct_proto_gre_init(void)
{ {
int ret; int ret;
ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_gre4);
if (ret < 0)
goto out_gre4;
ret = register_pernet_subsys(&proto_gre_net_ops); ret = register_pernet_subsys(&proto_gre_net_ops);
if (ret < 0) if (ret < 0)
goto out_pernet; goto out_pernet;
ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_gre4);
if (ret < 0)
goto out_gre4;
return 0; return 0;
out_pernet:
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_gre4);
out_gre4: out_gre4:
unregister_pernet_subsys(&proto_gre_net_ops);
out_pernet:
return ret; return ret;
} }

12
net/netfilter/nf_conntrack_proto_sctp.c
View File

@ -888,6 +888,10 @@ static int __init nf_conntrack_proto_sctp_init(void)
{ {
int ret; int ret;
ret = register_pernet_subsys(&sctp_net_ops);
if (ret < 0)
goto out_pernet;
ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_sctp4); ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_sctp4);
if (ret < 0) if (ret < 0)
goto out_sctp4; goto out_sctp4;
@ -896,16 +900,12 @@ static int __init nf_conntrack_proto_sctp_init(void)
if (ret < 0) if (ret < 0)
goto out_sctp6; goto out_sctp6;
ret = register_pernet_subsys(&sctp_net_ops);
if (ret < 0)
goto out_pernet;
return 0; return 0;
out_pernet:
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
out_sctp6: out_sctp6:
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_sctp4); nf_ct_l4proto_unregister(&nf_conntrack_l4proto_sctp4);
out_sctp4: out_sctp4:
unregister_pernet_subsys(&sctp_net_ops);
out_pernet:
return ret; return ret;
} }

12
net/netfilter/nf_conntrack_proto_udplite.c
View File

@ -371,6 +371,10 @@ static int __init nf_conntrack_proto_udplite_init(void)
{ {
int ret; int ret;
ret = register_pernet_subsys(&udplite_net_ops);
if (ret < 0)
goto out_pernet;
ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_udplite4); ret = nf_ct_l4proto_register(&nf_conntrack_l4proto_udplite4);
if (ret < 0) if (ret < 0)
goto out_udplite4; goto out_udplite4;
@ -379,16 +383,12 @@ static int __init nf_conntrack_proto_udplite_init(void)
if (ret < 0) if (ret < 0)
goto out_udplite6; goto out_udplite6;
ret = register_pernet_subsys(&udplite_net_ops);
if (ret < 0)
goto out_pernet;
return 0; return 0;
out_pernet:
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_udplite6);
out_udplite6: out_udplite6:
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_udplite4); nf_ct_l4proto_unregister(&nf_conntrack_l4proto_udplite4);
out_udplite4: out_udplite4:
unregister_pernet_subsys(&udplite_net_ops);
out_pernet:
return ret; return ret;
} }