Message ID | 1411731824-15051-7-git-send-email-pablo@netfilter.org |
---|---|
State | Not Applicable, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index c6f9d3d..9aa31f1 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -899,6 +899,9 @@ static struct nft_stats __percpu *nft_stats_alloc(const struct nlattr *attr) static void nft_chain_stats_replace(struct nft_base_chain *chain, struct nft_stats __percpu *newstats) { + if (newstats == NULL) + return; + if (chain->stats) { struct nft_stats __percpu *oldstats = nft_dereference(chain->stats);
[ upstream commit b88825de8545ad252c31543fef13cadf4de7a2bc ] Fix possible replacement of the per-cpu chain counters by null pointer when updating an existing chain in the commit path. Cc: <stable@vger.kernel.org> # 3.16.x Reported-by: Matteo Croce <technoboy85@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- net/netfilter/nf_tables_api.c | 3 +++ 1 file changed, 3 insertions(+)