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authorPablo Neira Ayuso <pablo@netfilter.org>2015-01-29 19:08:09 +0100
committerPablo Neira Ayuso <pablo@netfilter.org>2015-01-30 18:42:08 +0100
commitf5553c19ff9058136e7082c0b1f4268e705ea538 (patch)
tree2bf96b97b4ceab6f925869359f29eb91b102a3dc /net/netfilter
parent579eb62ac35845686a7c4286c0a820b4eb1f96aa (diff)
downloadlinux-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/netfilter')
-rw-r--r--net/netfilter/nf_tables_api.c8
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]);