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netfilter: nft_bitwise: fix register tracking
[ Upstream commit14e8b29390
] At the end of `nft_bitwise_reduce`, there is a loop which is intended to update the bitwise expression associated with each tracked destination register. However, currently, it just updates the first register repeatedly. Fix it. Fixes:34cc9e5288
("netfilter: nf_tables: cancel tracking for clobbered destination registers") Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-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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@ -322,7 +322,7 @@ static bool nft_bitwise_reduce(struct nft_regs_track *track,
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dreg = priv->dreg;
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regcount = DIV_ROUND_UP(priv->len, NFT_REG32_SIZE);
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for (i = 0; i < regcount; i++, dreg++)
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track->regs[priv->dreg].bitwise = expr;
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track->regs[dreg].bitwise = expr;
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return false;
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}
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