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author | Liping Zhang <liping.zhang@spreadtrum.com> | 2016-06-11 12:20:28 +0800 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2016-06-15 12:17:23 +0200 |
commit | a02f424863610a0a7abd80c468839e59cfa4d0d8 (patch) | |
tree | 28099616ed619231311c804950b77f3401179245 /net/netfilter | |
parent | 8588ac097b49ce8802f11541d9cd6f6667badb34 (diff) | |
download | op-kernel-dev-a02f424863610a0a7abd80c468839e59cfa4d0d8.zip op-kernel-dev-a02f424863610a0a7abd80c468839e59cfa4d0d8.tar.gz |
netfilter: nf_tables: fix wrong destroy anonymous sets if binding fails
When we add a nft rule like follows:
# nft add rule filter test tcp dport vmap {1: jump test}
-ELOOP error will be returned, and the anonymous set will be
destroyed.
But after that, nf_tables_abort will also try to remove the
element and destroy the set, which was already destroyed and
freed.
If we add a nft wrong rule, nft_tables_abort will do the cleanup
work rightly, so nf_tables_set_destroy call here is redundant and
wrong, remove it.
Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
-rw-r--r-- | net/netfilter/nf_tables_api.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 0fd6998..2c88187 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -2958,13 +2958,8 @@ int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set, iter.fn = nf_tables_bind_check_setelem; set->ops->walk(ctx, set, &iter); - if (iter.err < 0) { - /* Destroy anonymous sets if binding fails */ - if (set->flags & NFT_SET_ANONYMOUS) - nf_tables_set_destroy(ctx, set); - + if (iter.err < 0) return iter.err; - } } bind: binding->chain = ctx->chain; |