diff options
Diffstat (limited to 'target/linux/generic/backport-4.19/336-v4.15-netfilter-exit_net-cleanup-check-added.patch')
-rw-r--r-- | target/linux/generic/backport-4.19/336-v4.15-netfilter-exit_net-cleanup-check-added.patch | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.19/336-v4.15-netfilter-exit_net-cleanup-check-added.patch b/target/linux/generic/backport-4.19/336-v4.15-netfilter-exit_net-cleanup-check-added.patch new file mode 100644 index 0000000000..5938a9ba5a --- /dev/null +++ b/target/linux/generic/backport-4.19/336-v4.15-netfilter-exit_net-cleanup-check-added.patch @@ -0,0 +1,100 @@ +From: Vasily Averin <vvs@virtuozzo.com> +Date: Sun, 12 Nov 2017 14:32:37 +0300 +Subject: [PATCH] netfilter: exit_net cleanup check added + +Be sure that lists initialized in net_init hook was return to initial +state. + +Signed-off-by: Vasily Averin <vvs@virtuozzo.com> +Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> +--- + +--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c ++++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c +@@ -834,6 +834,7 @@ static void clusterip_net_exit(struct ne + cn->procdir = NULL; + #endif + nf_unregister_net_hook(net, &cip_arp_ops); ++ WARN_ON_ONCE(!list_empty(&cn->configs)); + } + + static struct pernet_operations clusterip_net_ops = { +--- a/net/netfilter/nf_tables_api.c ++++ b/net/netfilter/nf_tables_api.c +@@ -6545,6 +6545,12 @@ static int __net_init nf_tables_init_net + return 0; + } + ++static void __net_exit nf_tables_exit_net(struct net *net) ++{ ++ WARN_ON_ONCE(!list_empty(&net->nft.af_info)); ++ WARN_ON_ONCE(!list_empty(&net->nft.commit_list)); ++} ++ + int __nft_release_basechain(struct nft_ctx *ctx) + { + struct nft_rule *rule, *nr; +@@ -6622,6 +6628,7 @@ static void __nft_release_afinfo(struct + + static struct pernet_operations nf_tables_net_ops = { + .init = nf_tables_init_net, ++ .exit = nf_tables_exit_net, + }; + + static int __init nf_tables_module_init(void) +--- a/net/netfilter/nfnetlink_log.c ++++ b/net/netfilter/nfnetlink_log.c +@@ -1093,10 +1093,15 @@ static int __net_init nfnl_log_net_init( + + static void __net_exit nfnl_log_net_exit(struct net *net) + { ++ struct nfnl_log_net *log = nfnl_log_pernet(net); ++ unsigned int i; ++ + #ifdef CONFIG_PROC_FS + remove_proc_entry("nfnetlink_log", net->nf.proc_netfilter); + #endif + nf_log_unset(net, &nfulnl_logger); ++ for (i = 0; i < INSTANCE_BUCKETS; i++) ++ WARN_ON_ONCE(!hlist_empty(&log->instance_table[i])); + } + + static struct pernet_operations nfnl_log_net_ops = { +--- a/net/netfilter/nfnetlink_queue.c ++++ b/net/netfilter/nfnetlink_queue.c +@@ -1510,10 +1510,15 @@ static int __net_init nfnl_queue_net_ini + + static void __net_exit nfnl_queue_net_exit(struct net *net) + { ++ struct nfnl_queue_net *q = nfnl_queue_pernet(net); ++ unsigned int i; ++ + nf_unregister_queue_handler(net); + #ifdef CONFIG_PROC_FS + remove_proc_entry("nfnetlink_queue", net->nf.proc_netfilter); + #endif ++ for (i = 0; i < INSTANCE_BUCKETS; i++) ++ WARN_ON_ONCE(!hlist_empty(&q->instance_table[i])); + } + + static void nfnl_queue_net_exit_batch(struct list_head *net_exit_list) +--- a/net/netfilter/x_tables.c ++++ b/net/netfilter/x_tables.c +@@ -1785,8 +1785,17 @@ static int __net_init xt_net_init(struct + return 0; + } + ++static void __net_exit xt_net_exit(struct net *net) ++{ ++ int i; ++ ++ for (i = 0; i < NFPROTO_NUMPROTO; i++) ++ WARN_ON_ONCE(!list_empty(&net->xt.tables[i])); ++} ++ + static struct pernet_operations xt_net_ops = { + .init = xt_net_init, ++ .exit = xt_net_exit, + }; + + static int __init xt_init(void) |