This is a note to let you know that I've just added the patch titled
netfilter: nf_tables: don't update chain with unset counters
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
netfilter-nf_tables-don-t-update-chain-with-unset-counters.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b88825de8545ad252c31543fef13cadf4de7a2bc Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Date: Tue, 5 Aug 2014 17:25:59 +0200
Subject: netfilter: nf_tables: don't update chain with unset counters
From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
commit b88825de8545ad252c31543fef13cadf4de7a2bc upstream.
Fix possible replacement of the per-cpu chain counters by null
pointer when updating an existing chain in the commit path.
Reported-by: Matteo Croce <technoboy85@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/netfilter/nf_tables_api.c | 3 +++
1 file changed, 3 insertions(+)
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -899,6 +899,9 @@ static struct nft_stats __percpu *nft_st
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);
Patches currently in stable-queue which might be from pablo@xxxxxxxxxxxxx are
queue-3.16/netfilter-xt_hashlimit-perform-garbage-collection-from-process-context.patch
queue-3.16/netfilter-nf_tables-don-t-update-chain-with-unset-counters.patch
queue-3.16/netfilter-x_tables-allow-to-use-default-cgroup-match.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html