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author | David S. Miller | 2018-04-23 22:22:24 +0200 |
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committer | David S. Miller | 2018-04-23 22:22:24 +0200 |
commit | 77621f024d6be732e43366a42203486b6ec89acd (patch) | |
tree | 423ad59e9d82db870b5148091111765d06f936ac /net/netfilter/nf_tables_api.c | |
parent | ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy (diff) | |
parent | netfilter: xt_connmark: do not cast xt_connmark_tginfo1 to xt_connmark_tginfo2 (diff) | |
download | kernel-qcow2-linux-77621f024d6be732e43366a42203486b6ec89acd.tar.gz kernel-qcow2-linux-77621f024d6be732e43366a42203486b6ec89acd.tar.xz kernel-qcow2-linux-77621f024d6be732e43366a42203486b6ec89acd.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:
1) Fix SIP conntrack with phones sending session descriptions for different
media types but same port numbers, from Florian Westphal.
2) Fix incorrect rtnl_lock mutex logic from IPVS sync thread, from Julian
Anastasov.
3) Skip compat array allocation in ebtables if there is no entries, also
from Florian.
4) Do not lose left/right bits when shifting marks from xt_connmark, from
Jack Ma.
5) Silence false positive memleak in conntrack extensions, from Cong Wang.
6) Fix CONFIG_NF_REJECT_IPV6=m link problems, from Arnd Bergmann.
7) Cannot kfree rule that is already in list in nf_tables, switch order
so this error handling is not required, from Florian Westphal.
8) Release set name in error path, from Florian.
9) include kmemleak.h in nf_conntrack_extend.c, from Stepheh Rothwell.
10) NAT chain and extensions depend on NF_TABLES.
11) Out of bound access when renaming chains, from Taehee Yoo.
12) Incorrect casting in xt_connmark leads to wrong bitshifting.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter/nf_tables_api.c')
-rw-r--r-- | net/netfilter/nf_tables_api.c | 69 |
1 files changed, 38 insertions, 31 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 9134cc429ad4..04d4e3772584 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -2361,41 +2361,46 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk, } if (nlh->nlmsg_flags & NLM_F_REPLACE) { - if (nft_is_active_next(net, old_rule)) { - trans = nft_trans_rule_add(&ctx, NFT_MSG_DELRULE, - old_rule); - if (trans == NULL) { - err = -ENOMEM; - goto err2; - } - nft_deactivate_next(net, old_rule); - chain->use--; - list_add_tail_rcu(&rule->list, &old_rule->list); - } else { + if (!nft_is_active_next(net, old_rule)) { err = -ENOENT; goto err2; } - } else if (nlh->nlmsg_flags & NLM_F_APPEND) - if (old_rule) - list_add_rcu(&rule->list, &old_rule->list); - else - list_add_tail_rcu(&rule->list, &chain->rules); - else { - if (old_rule) - list_add_tail_rcu(&rule->list, &old_rule->list); - else - list_add_rcu(&rule->list, &chain->rules); - } + trans = nft_trans_rule_add(&ctx, NFT_MSG_DELRULE, + old_rule); + if (trans == NULL) { + err = -ENOMEM; + goto err2; + } + nft_deactivate_next(net, old_rule); + chain->use--; - if (nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE, rule) == NULL) { - err = -ENOMEM; - goto err3; + if (nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE, rule) == NULL) { + err = -ENOMEM; + goto err2; + } + + list_add_tail_rcu(&rule->list, &old_rule->list); + } else { + if (nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE, rule) == NULL) { + err = -ENOMEM; + goto err2; + } + + if (nlh->nlmsg_flags & NLM_F_APPEND) { + if (old_rule) + list_add_rcu(&rule->list, &old_rule->list); + else + list_add_tail_rcu(&rule->list, &chain->rules); + } else { + if (old_rule) + list_add_tail_rcu(&rule->list, &old_rule->list); + else + list_add_rcu(&rule->list, &chain->rules); + } } chain->use++; return 0; -err3: - list_del_rcu(&rule->list); err2: nf_tables_rule_destroy(&ctx, rule); err1: @@ -3207,18 +3212,20 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk, err = ops->init(set, &desc, nla); if (err < 0) - goto err2; + goto err3; err = nft_trans_set_add(&ctx, NFT_MSG_NEWSET, set); if (err < 0) - goto err3; + goto err4; list_add_tail_rcu(&set->list, &table->sets); table->use++; return 0; -err3: +err4: ops->destroy(set); +err3: + kfree(set->name); err2: kvfree(set); err1: @@ -5738,7 +5745,7 @@ static void nft_chain_commit_update(struct nft_trans *trans) struct nft_base_chain *basechain; if (nft_trans_chain_name(trans)) - strcpy(trans->ctx.chain->name, nft_trans_chain_name(trans)); + swap(trans->ctx.chain->name, nft_trans_chain_name(trans)); if (!nft_is_base_chain(trans->ctx.chain)) return; |