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netfilter: nft_masq: correct length for loading protocol registers
[ Upstream commitec2c5917eb
] The values in the protocol registers are two bytes wide. However, when parsing the register loads, the code currently uses the larger 16-byte size of a `union nf_inet_addr`. Change it to use the (correct) size of a `union nf_conntrack_man_proto` instead. Fixes:8a6bf5da1a
("netfilter: nft_masq: support port range") Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -43,7 +43,7 @@ static int nft_masq_init(const struct nft_ctx *ctx,
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const struct nft_expr *expr,
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const struct nlattr * const tb[])
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{
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u32 plen = sizeof_field(struct nf_nat_range, min_addr.all);
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u32 plen = sizeof_field(struct nf_nat_range, min_proto.all);
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struct nft_masq *priv = nft_expr_priv(expr);
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int err;
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