linux-kernel - [PATCH 4.2 121/258] netfilter: nf_tables: Use 32 bit addressing register from nft_type_to

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Message-Id: <20151018014735.882747903@linuxfoundation.org>
Date:	Sat, 17 Oct 2015 18:57:14 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Andreas Schultz <aschultz@...p.net>,
	Pablo Neira Ayuso <pablo@...filter.org>
Subject: [PATCH 4.2 121/258] netfilter: nf_tables: Use 32 bit addressing register from nft_type_to_reg()

4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pablo Neira Ayuso <pablo@...filter.org>

commit bf798657eb5ba57552096843c315f096fdf9b715 upstream.

nft_type_to_reg() needs to return the register in the new 32 bit addressing,
otherwise we hit EINVAL when using mappings.

Fixes: 49499c3 ("netfilter: nf_tables: switch registers to 32 bit addressing")
Reported-by: Andreas Schultz <aschultz@...p.net>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 include/net/netfilter/nf_tables.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -125,7 +125,7 @@ static inline enum nft_data_types nft_dr
 
 static inline enum nft_registers nft_type_to_reg(enum nft_data_types type)
 {
-	return type == NFT_DATA_VERDICT ? NFT_REG_VERDICT : NFT_REG_1;
+	return type == NFT_DATA_VERDICT ? NFT_REG_VERDICT : NFT_REG_1 * NFT_REG_SIZE / NFT_REG32_SIZE;
 }
 
 unsigned int nft_parse_register(const struct nlattr *attr);


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