netdev - [PATCH 01/27] netfilter: nf_tables: Fix an Oops in nf_tables

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Date:   Fri, 13 Sep 2019 13:30:36 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 01/27] netfilter: nf_tables: Fix an Oops in nf_tables_updobj() error handling

From: Dan Carpenter <dan.carpenter@...cle.com>

The "newobj" is an error pointer so we can't pass it to kfree().  It
doesn't need to be freed so we can remove that and I also renamed the
error label.

Fixes: d62d0ba97b58 ("netfilter: nf_tables: Introduce stateful object update operation")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Fernando Fernandez Mancera <ffmancera@...eup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nf_tables_api.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 013d28899cab..7def31ae3022 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -5151,7 +5151,7 @@ static int nf_tables_updobj(const struct nft_ctx *ctx,
 	newobj = nft_obj_init(ctx, type, attr);
 	if (IS_ERR(newobj)) {
 		err = PTR_ERR(newobj);
-		goto err1;
+		goto err_free_trans;
 	}
 
 	nft_trans_obj(trans) = obj;
@@ -5160,9 +5160,9 @@ static int nf_tables_updobj(const struct nft_ctx *ctx,
 	list_add_tail(&trans->list, &ctx->net->nft.commit_list);
 
 	return 0;
-err1:
+
+err_free_trans:
 	kfree(trans);
-	kfree(newobj);
 	return err;
 }
 
-- 
2.11.0