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@@ -373,6 +373,7 @@ nf_nat_seq_adjust(struct sk_buff *skb,
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s16 seqoff, ackoff;
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struct nf_conn_nat *nat = nfct_nat(ct);
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struct nf_nat_seq *this_way, *other_way;
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+ int res;
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dir = CTINFO2DIR(ctinfo);
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@@ -383,6 +384,7 @@ nf_nat_seq_adjust(struct sk_buff *skb,
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return 0;
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tcph = (void *)skb->data + protoff;
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+ spin_lock_bh(&nf_nat_seqofs_lock);
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if (after(ntohl(tcph->seq), this_way->correction_pos))
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seqoff = this_way->offset_after;
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else
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@@ -407,7 +409,10 @@ nf_nat_seq_adjust(struct sk_buff *skb,
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tcph->seq = newseq;
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tcph->ack_seq = newack;
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- return nf_nat_sack_adjust(skb, protoff, tcph, ct, ctinfo);
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+ res = nf_nat_sack_adjust(skb, protoff, tcph, ct, ctinfo);
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+ spin_unlock_bh(&nf_nat_seqofs_lock);
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+
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+ return res;
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}
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/* Setup NAT on this expected conntrack so it follows master. */
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