wh_...@126.com <wh_...@126.com> wrote:
> From: Hongbin Wang <wh_...@126.com>
> 
> The *bucket is in for loops,it has been checked.
> 
> Signed-off-by: Hongbin Wang <wh_...@126.com>
> ---
>  net/netfilter/nf_conntrack_core.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/net/netfilter/nf_conntrack_core.c 
> b/net/netfilter/nf_conntrack_core.c
> index 0c63120b2db2..8d48babe6561 100644
> --- a/net/netfilter/nf_conntrack_core.c
> +++ b/net/netfilter/nf_conntrack_core.c
> @@ -2000,14 +2000,12 @@ get_next_corpse(int (*iter)(struct nf_conn *i, void 
> *data),
>               lockp = &nf_conntrack_locks[*bucket % CONNTRACK_LOCKS];
>               local_bh_disable();
>               nf_conntrack_lock(lockp);
> -             if (*bucket < nf_conntrack_htable_size) {
> -                     hlist_nulls_for_each_entry(h, n, 
> &nf_conntrack_hash[*bucket], hnnode) {
> -                             if (NF_CT_DIRECTION(h) != IP_CT_DIR_ORIGINAL)
> -                                     continue;
> -                             ct = nf_ct_tuplehash_to_ctrack(h);
> -                             if (iter(ct, data))
> -                                     goto found;
> -                     }
> +             hlist_nulls_for_each_entry(h, n, &nf_conntrack_hash[*bucket], 
> hnnode) {

I don't think this is correct.
unless we hold nf_conntrack_lock() nf_conntrack_hash[] could be
reallocated, no?

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