Commit c6c5327d authored by Fernando Fernandez Mancera's avatar Fernando Fernandez Mancera Committed by Pablo Neira Ayuso
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netfilter: xt_NFQUEUE: prefer raw_smp_processor_id 



With PREEMPT_RCU this triggers a splat because smp_processor_id() can be
preempted while inside a RCU critical section. If xt_NFQUEUE target is
invoked via nft_compat_eval() path, we are inside a RCU critical
section.

Just use the raw version instead.

Fixes: 0ca743a5 ("netfilter: nf_tables: add compatibility layer for x_tables")
Signed-off-by: default avatarFernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 78ef59e7

net/netfilter/xt_NFQUEUE.c

+1 −1
Original line number Diff line number Diff line
@@ -91,7 +91,7 @@ nfqueue_tg_v3(struct sk_buff *skb, const struct xt_action_param *par) 


	if (info->queues_total > 1) {

		if (info->flags & NFQ_FLAG_CPU_FANOUT) {

			int cpu = smp_processor_id();

			int cpu = raw_smp_processor_id();



			queue = info->queuenum + cpu % info->queues_total;

		} else {