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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-01-29 19:08:09 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-01-30 18:42:08 +0100 |
| commit | f5553c19ff9058136e7082c0b1f4268e705ea538 (patch) | |
| tree | 2bf96b97b4ceab6f925869359f29eb91b102a3dc /net | |
| parent | 579eb62ac35845686a7c4286c0a820b4eb1f96aa (diff) | |
| download | linux-f5553c19ff9058136e7082c0b1f4268e705ea538.tar.bz2 | |
netfilter: nf_tables: fix leaks in error path of nf_tables_newchain()
Release statistics and module refcount on memory allocation problems.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index b54360634e95..1ff04bcd4871 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -1264,8 +1264,10 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb, nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla); trans = nft_trans_alloc(&ctx, NFT_MSG_NEWCHAIN, sizeof(struct nft_trans_chain)); - if (trans == NULL) + if (trans == NULL) { + free_percpu(stats); return -ENOMEM; + } nft_trans_chain_stats(trans) = stats; nft_trans_chain_update(trans) = true; @@ -1321,8 +1323,10 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb, hookfn = type->hooks[hooknum]; basechain = kzalloc(sizeof(*basechain), GFP_KERNEL); - if (basechain == NULL) + if (basechain == NULL) { + module_put(type->owner); return -ENOMEM; + } if (nla[NFTA_CHAIN_COUNTERS]) { stats = nft_stats_alloc(nla[NFTA_CHAIN_COUNTERS]); |