The transaction needs to be placed at the end of the commit list,
otherwise event notifications are reordered and we may crash when
releasing object via call_rcu.
This problem was introduced in 60319eb ("netfilter: nf_tables: use new
transaction infrastructure to handle elements").
Reported-by: Arturo Borrero Gonzalez <arturo.borrero.glez@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/netfilter/nf_tables_api.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index e171c63..ca38725 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3076,7 +3076,7 @@ static int nft_add_set_elem(struct nft_ctx *ctx, struct nft_set *set,
goto err4;
nft_trans_elem(trans) = elem;
- list_add(&trans->list, &ctx->net->nft.commit_list);
+ list_add_tail(&trans->list, &ctx->net->nft.commit_list);
return 0;
err4:
@@ -3160,7 +3160,7 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set,
goto err2;
nft_trans_elem(trans) = elem;
- list_add(&trans->list, &ctx->net->nft.commit_list);
+ list_add_tail(&trans->list, &ctx->net->nft.commit_list);
nft_data_uninit(&elem.key, NFT_DATA_VALUE);
if (set->flags & NFT_SET_MAP)
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
