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netfilter: nf_queue: fix reinject verdict handling
[ Upstream commit946c0d8e6e
] This patch fixes netfilter hook traversal when there are more than 1 hooks returning NF_QUEUE verdict. When the first queue reinjects the packet, 'nf_reinject' starts traversing hooks with a proper hook_index. However, if it again receives a NF_QUEUE verdict (by some other netfilter hook), it queues the packet with a wrong hook_index. So, when the second queue reinjects the packet, it re-executes hooks in between. Fixes:960632ece6
("netfilter: convert hook list to an array") Signed-off-by: Jagdish Motwani <jagdish.motwani@sophos.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -193,6 +193,7 @@ static unsigned int nf_iterate(struct sk_buff *skb,
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repeat:
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verdict = nf_hook_entry_hookfn(hook, skb, state);
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if (verdict != NF_ACCEPT) {
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*index = i;
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if (verdict != NF_REPEAT)
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return verdict;
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goto repeat;
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